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Diffstat (limited to '')
27 files changed, 4782 insertions, 0 deletions
diff --git a/arch/mips/netlogic/Kconfig b/arch/mips/netlogic/Kconfig new file mode 100644 index 000000000..412351c5a --- /dev/null +++ b/arch/mips/netlogic/Kconfig @@ -0,0 +1,86 @@ +# SPDX-License-Identifier: GPL-2.0 +if NLM_XLP_BOARD || NLM_XLR_BOARD + +if NLM_XLP_BOARD +config DT_XLP_EVP + bool "Built-in device tree for XLP EVP boards" + default y + select BUILTIN_DTB + help + Add an FDT blob for XLP EVP boards into the kernel. + This DTB will be used if the firmware does not pass in a DTB + pointer to the kernel. The corresponding DTS file is at + arch/mips/netlogic/dts/xlp_evp.dts + +config DT_XLP_SVP + bool "Built-in device tree for XLP SVP boards" + default y + select BUILTIN_DTB + help + Add an FDT blob for XLP VP boards into the kernel. + This DTB will be used if the firmware does not pass in a DTB + pointer to the kernel. The corresponding DTS file is at + arch/mips/netlogic/dts/xlp_svp.dts + +config DT_XLP_FVP + bool "Built-in device tree for XLP FVP boards" + default y + select BUILTIN_DTB + help + Add an FDT blob for XLP FVP board into the kernel. + This DTB will be used if the firmware does not pass in a DTB + pointer to the kernel. The corresponding DTS file is at + arch/mips/netlogic/dts/xlp_fvp.dts + +config DT_XLP_GVP + bool "Built-in device tree for XLP GVP boards" + default y + select BUILTIN_DTB + help + Add an FDT blob for XLP GVP board into the kernel. + This DTB will be used if the firmware does not pass in a DTB + pointer to the kernel. The corresponding DTS file is at + arch/mips/netlogic/dts/xlp_gvp.dts + +config DT_XLP_RVP + bool "Built-in device tree for XLP RVP boards" + default y + help + Add an FDT blob for XLP RVP board into the kernel. + This DTB will be used if the firmware does not pass in a DTB + pointer to the kernel. The corresponding DTS file is at + arch/mips/netlogic/dts/xlp_rvp.dts + +config NLM_MULTINODE + bool "Support for multi-chip boards" + depends on NLM_XLP_BOARD + default n + help + Add support for boards with 2 or 4 XLPs connected over ICI. + +if NLM_MULTINODE +choice + prompt "Number of XLPs on the board" + default NLM_MULTINODE_2 + help + In the multi-node case, specify the number of SoCs on the board. + +config NLM_MULTINODE_2 + bool "Dual-XLP board" + help + Support boards with upto two XLPs connected over ICI. + +config NLM_MULTINODE_4 + bool "Quad-XLP board" + help + Support boards with upto four XLPs connected over ICI. + +endchoice + +endif +endif + +config NLM_COMMON + bool + +endif diff --git a/arch/mips/netlogic/Makefile b/arch/mips/netlogic/Makefile new file mode 100644 index 000000000..c53561589 --- /dev/null +++ b/arch/mips/netlogic/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only +obj-$(CONFIG_NLM_COMMON) += common/ +obj-$(CONFIG_CPU_XLR) += xlr/ +obj-$(CONFIG_CPU_XLP) += xlp/ diff --git a/arch/mips/netlogic/Platform b/arch/mips/netlogic/Platform new file mode 100644 index 000000000..4195a097f --- /dev/null +++ b/arch/mips/netlogic/Platform @@ -0,0 +1,16 @@ +# +# NETLOGIC includes +# +cflags-$(CONFIG_NLM_COMMON) += -I$(srctree)/arch/mips/include/asm/mach-netlogic +cflags-$(CONFIG_NLM_COMMON) += -I$(srctree)/arch/mips/include/asm/netlogic + +# +# use mips64 if xlr is not available +# +cflags-$(CONFIG_CPU_XLR) += $(call cc-option,-march=xlr,-march=mips64) +cflags-$(CONFIG_CPU_XLP) += $(call cc-option,-march=xlp,-march=mips64r2) + +# +# NETLOGIC processor support +# +load-$(CONFIG_NLM_COMMON) += 0xffffffff80100000 diff --git a/arch/mips/netlogic/common/Makefile b/arch/mips/netlogic/common/Makefile new file mode 100644 index 000000000..89f6e3f39 --- /dev/null +++ b/arch/mips/netlogic/common/Makefile @@ -0,0 +1,5 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-y += irq.o time.o +obj-y += reset.o +obj-$(CONFIG_SMP) += smp.o smpboot.o +obj-$(CONFIG_EARLY_PRINTK) += earlycons.o diff --git a/arch/mips/netlogic/common/earlycons.c b/arch/mips/netlogic/common/earlycons.c new file mode 100644 index 000000000..8f5bc1597 --- /dev/null +++ b/arch/mips/netlogic/common/earlycons.c @@ -0,0 +1,63 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/types.h> +#include <linux/serial_reg.h> + +#include <asm/mipsregs.h> +#include <asm/setup.h> +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/common.h> + +#if defined(CONFIG_CPU_XLP) +#include <asm/netlogic/xlp-hal/iomap.h> +#include <asm/netlogic/xlp-hal/xlp.h> +#include <asm/netlogic/xlp-hal/uart.h> +#elif defined(CONFIG_CPU_XLR) +#include <asm/netlogic/xlr/iomap.h> +#endif + +void prom_putchar(char c) +{ + uint64_t uartbase; + +#if defined(CONFIG_CPU_XLP) + uartbase = nlm_get_uart_regbase(0, 0); +#elif defined(CONFIG_CPU_XLR) + uartbase = nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET); +#endif + while ((nlm_read_reg(uartbase, UART_LSR) & UART_LSR_THRE) == 0) + ; + nlm_write_reg(uartbase, UART_TX, c); +} diff --git a/arch/mips/netlogic/common/irq.c b/arch/mips/netlogic/common/irq.c new file mode 100644 index 000000000..cf33dd8a4 --- /dev/null +++ b/arch/mips/netlogic/common/irq.c @@ -0,0 +1,354 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/linkage.h> +#include <linux/interrupt.h> +#include <linux/mm.h> +#include <linux/slab.h> +#include <linux/irq.h> + +#include <linux/irqdomain.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> + +#include <asm/errno.h> +#include <asm/signal.h> +#include <asm/ptrace.h> +#include <asm/mipsregs.h> +#include <asm/thread_info.h> + +#include <asm/netlogic/mips-extns.h> +#include <asm/netlogic/interrupt.h> +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/common.h> + +#if defined(CONFIG_CPU_XLP) +#include <asm/netlogic/xlp-hal/iomap.h> +#include <asm/netlogic/xlp-hal/xlp.h> +#include <asm/netlogic/xlp-hal/pic.h> +#elif defined(CONFIG_CPU_XLR) +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> +#include <asm/netlogic/xlr/fmn.h> +#else +#error "Unknown CPU" +#endif + +#ifdef CONFIG_SMP +#define SMP_IRQ_MASK ((1ULL << IRQ_IPI_SMP_FUNCTION) | \ + (1ULL << IRQ_IPI_SMP_RESCHEDULE)) +#else +#define SMP_IRQ_MASK 0 +#endif +#define PERCPU_IRQ_MASK (SMP_IRQ_MASK | (1ull << IRQ_TIMER) | \ + (1ull << IRQ_FMN)) + +struct nlm_pic_irq { + void (*extra_ack)(struct irq_data *); + struct nlm_soc_info *node; + int picirq; + int irt; + int flags; +}; + +static void xlp_pic_enable(struct irq_data *d) +{ + unsigned long flags; + struct nlm_pic_irq *pd = irq_data_get_irq_chip_data(d); + + BUG_ON(!pd); + spin_lock_irqsave(&pd->node->piclock, flags); + nlm_pic_enable_irt(pd->node->picbase, pd->irt); + spin_unlock_irqrestore(&pd->node->piclock, flags); +} + +static void xlp_pic_disable(struct irq_data *d) +{ + struct nlm_pic_irq *pd = irq_data_get_irq_chip_data(d); + unsigned long flags; + + BUG_ON(!pd); + spin_lock_irqsave(&pd->node->piclock, flags); + nlm_pic_disable_irt(pd->node->picbase, pd->irt); + spin_unlock_irqrestore(&pd->node->piclock, flags); +} + +static void xlp_pic_mask_ack(struct irq_data *d) +{ + struct nlm_pic_irq *pd = irq_data_get_irq_chip_data(d); + + clear_c0_eimr(pd->picirq); + ack_c0_eirr(pd->picirq); +} + +static void xlp_pic_unmask(struct irq_data *d) +{ + struct nlm_pic_irq *pd = irq_data_get_irq_chip_data(d); + + BUG_ON(!pd); + + if (pd->extra_ack) + pd->extra_ack(d); + + /* re-enable the intr on this cpu */ + set_c0_eimr(pd->picirq); + + /* Ack is a single write, no need to lock */ + nlm_pic_ack(pd->node->picbase, pd->irt); +} + +static struct irq_chip xlp_pic = { + .name = "XLP-PIC", + .irq_enable = xlp_pic_enable, + .irq_disable = xlp_pic_disable, + .irq_mask_ack = xlp_pic_mask_ack, + .irq_unmask = xlp_pic_unmask, +}; + +static void cpuintr_disable(struct irq_data *d) +{ + clear_c0_eimr(d->irq); +} + +static void cpuintr_enable(struct irq_data *d) +{ + set_c0_eimr(d->irq); +} + +static void cpuintr_ack(struct irq_data *d) +{ + ack_c0_eirr(d->irq); +} + +/* + * Chip definition for CPU originated interrupts(timer, msg) and + * IPIs + */ +struct irq_chip nlm_cpu_intr = { + .name = "XLP-CPU-INTR", + .irq_enable = cpuintr_enable, + .irq_disable = cpuintr_disable, + .irq_mask = cpuintr_disable, + .irq_ack = cpuintr_ack, + .irq_eoi = cpuintr_enable, +}; + +static void __init nlm_init_percpu_irqs(void) +{ + int i; + + for (i = 0; i < PIC_IRT_FIRST_IRQ; i++) + irq_set_chip_and_handler(i, &nlm_cpu_intr, handle_percpu_irq); +#ifdef CONFIG_SMP + irq_set_chip_and_handler(IRQ_IPI_SMP_FUNCTION, &nlm_cpu_intr, + nlm_smp_function_ipi_handler); + irq_set_chip_and_handler(IRQ_IPI_SMP_RESCHEDULE, &nlm_cpu_intr, + nlm_smp_resched_ipi_handler); +#endif +} + + +void nlm_setup_pic_irq(int node, int picirq, int irq, int irt) +{ + struct nlm_pic_irq *pic_data; + int xirq; + + xirq = nlm_irq_to_xirq(node, irq); + pic_data = kzalloc(sizeof(*pic_data), GFP_KERNEL); + BUG_ON(pic_data == NULL); + pic_data->irt = irt; + pic_data->picirq = picirq; + pic_data->node = nlm_get_node(node); + irq_set_chip_and_handler(xirq, &xlp_pic, handle_level_irq); + irq_set_chip_data(xirq, pic_data); +} + +void nlm_set_pic_extra_ack(int node, int irq, void (*xack)(struct irq_data *)) +{ + struct nlm_pic_irq *pic_data; + int xirq; + + xirq = nlm_irq_to_xirq(node, irq); + pic_data = irq_get_chip_data(xirq); + if (WARN_ON(!pic_data)) + return; + pic_data->extra_ack = xack; +} + +static void nlm_init_node_irqs(int node) +{ + struct nlm_soc_info *nodep; + int i, irt; + + pr_info("Init IRQ for node %d\n", node); + nodep = nlm_get_node(node); + nodep->irqmask = PERCPU_IRQ_MASK; + for (i = PIC_IRT_FIRST_IRQ; i <= PIC_IRT_LAST_IRQ; i++) { + irt = nlm_irq_to_irt(i); + if (irt == -1) /* unused irq */ + continue; + nodep->irqmask |= 1ull << i; + if (irt == -2) /* not a direct PIC irq */ + continue; + + nlm_pic_init_irt(nodep->picbase, irt, i, + node * nlm_threads_per_node(), 0); + nlm_setup_pic_irq(node, i, i, irt); + } +} + +void nlm_smp_irq_init(int hwtid) +{ + int cpu, node; + + cpu = hwtid % nlm_threads_per_node(); + node = hwtid / nlm_threads_per_node(); + + if (cpu == 0 && node != 0) + nlm_init_node_irqs(node); + write_c0_eimr(nlm_get_node(node)->irqmask); +} + +asmlinkage void plat_irq_dispatch(void) +{ + uint64_t eirr; + int i, node; + + node = nlm_nodeid(); + eirr = read_c0_eirr_and_eimr(); + if (eirr == 0) + return; + + i = __ffs64(eirr); + /* per-CPU IRQs don't need translation */ + if (i < PIC_IRQ_BASE) { + do_IRQ(i); + return; + } + +#if defined(CONFIG_PCI_MSI) && defined(CONFIG_CPU_XLP) + /* PCI interrupts need a second level dispatch for MSI bits */ + if (i >= PIC_PCIE_LINK_MSI_IRQ(0) && i <= PIC_PCIE_LINK_MSI_IRQ(3)) { + nlm_dispatch_msi(node, i); + return; + } + if (i >= PIC_PCIE_MSIX_IRQ(0) && i <= PIC_PCIE_MSIX_IRQ(3)) { + nlm_dispatch_msix(node, i); + return; + } + +#endif + /* top level irq handling */ + do_IRQ(nlm_irq_to_xirq(node, i)); +} + +#ifdef CONFIG_CPU_XLP +static const struct irq_domain_ops xlp_pic_irq_domain_ops = { + .xlate = irq_domain_xlate_onetwocell, +}; + +static int __init xlp_of_pic_init(struct device_node *node, + struct device_node *parent) +{ + const int n_picirqs = PIC_IRT_LAST_IRQ - PIC_IRQ_BASE + 1; + struct irq_domain *xlp_pic_domain; + struct resource res; + int socid, ret, bus; + + /* we need a hack to get the PIC's SoC chip id */ + ret = of_address_to_resource(node, 0, &res); + if (ret < 0) { + pr_err("PIC %pOFn: reg property not found!\n", node); + return -EINVAL; + } + + if (cpu_is_xlp9xx()) { + bus = (res.start >> 20) & 0xf; + for (socid = 0; socid < NLM_NR_NODES; socid++) { + if (!nlm_node_present(socid)) + continue; + if (nlm_get_node(socid)->socbus == bus) + break; + } + if (socid == NLM_NR_NODES) { + pr_err("PIC %pOFn: Node mapping for bus %d not found!\n", + node, bus); + return -EINVAL; + } + } else { + socid = (res.start >> 18) & 0x3; + if (!nlm_node_present(socid)) { + pr_err("PIC %pOFn: node %d does not exist!\n", + node, socid); + return -EINVAL; + } + } + + if (!nlm_node_present(socid)) { + pr_err("PIC %pOFn: node %d does not exist!\n", node, socid); + return -EINVAL; + } + + xlp_pic_domain = irq_domain_add_legacy(node, n_picirqs, + nlm_irq_to_xirq(socid, PIC_IRQ_BASE), PIC_IRQ_BASE, + &xlp_pic_irq_domain_ops, NULL); + if (xlp_pic_domain == NULL) { + pr_err("PIC %pOFn: Creating legacy domain failed!\n", node); + return -EINVAL; + } + pr_info("Node %d: IRQ domain created for PIC@%pR\n", socid, &res); + return 0; +} + +static struct of_device_id __initdata xlp_pic_irq_ids[] = { + { .compatible = "netlogic,xlp-pic", .data = xlp_of_pic_init }, + {}, +}; +#endif + +void __init arch_init_irq(void) +{ + /* Initialize the irq descriptors */ + nlm_init_percpu_irqs(); + nlm_init_node_irqs(0); + write_c0_eimr(nlm_current_node()->irqmask); +#if defined(CONFIG_CPU_XLR) + nlm_setup_fmn_irq(); +#endif +#ifdef CONFIG_CPU_XLP + of_irq_init(xlp_pic_irq_ids); +#endif +} diff --git a/arch/mips/netlogic/common/reset.S b/arch/mips/netlogic/common/reset.S new file mode 100644 index 000000000..c474981a6 --- /dev/null +++ b/arch/mips/netlogic/common/reset.S @@ -0,0 +1,299 @@ +/* + * Copyright 2003-2013 Broadcom Corporation. + * All Rights Reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the Broadcom + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +#include <asm/asm.h> +#include <asm/asm-offsets.h> +#include <asm/cpu.h> +#include <asm/cacheops.h> +#include <asm/regdef.h> +#include <asm/mipsregs.h> +#include <asm/stackframe.h> +#include <asm/asmmacro.h> +#include <asm/addrspace.h> + +#include <asm/netlogic/common.h> + +#include <asm/netlogic/xlp-hal/iomap.h> +#include <asm/netlogic/xlp-hal/xlp.h> +#include <asm/netlogic/xlp-hal/sys.h> +#include <asm/netlogic/xlp-hal/cpucontrol.h> + +#define SYS_CPU_COHERENT_BASE CKSEG1ADDR(XLP_DEFAULT_IO_BASE) + \ + XLP_IO_SYS_OFFSET(0) + XLP_IO_PCI_HDRSZ + \ + SYS_CPU_NONCOHERENT_MODE * 4 + +/* Enable XLP features and workarounds in the LSU */ +.macro xlp_config_lsu + li t0, LSU_DEFEATURE + mfcr t1, t0 + + lui t2, 0x4080 /* Enable Unaligned Access, L2HPE */ + or t1, t1, t2 + mtcr t1, t0 + + li t0, ICU_DEFEATURE + mfcr t1, t0 + ori t1, 0x1000 /* Enable Icache partitioning */ + mtcr t1, t0 + + li t0, SCHED_DEFEATURE + lui t1, 0x0100 /* Disable BRU accepting ALU ops */ + mtcr t1, t0 +.endm + +/* + * Allow access to physical mem >64G by enabling ELPA in PAGEGRAIN + * register. This is needed before going to C code since the SP can + * in this region. Called from all HW threads. + */ +.macro xlp_early_mmu_init + mfc0 t0, CP0_PAGEMASK, 1 + li t1, (1 << 29) /* ELPA bit */ + or t0, t1 + mtc0 t0, CP0_PAGEMASK, 1 +.endm + +/* + * L1D cache has to be flushed before enabling threads in XLP. + * On XLP8xx/XLP3xx, we do a low level flush using processor control + * registers. On XLPII CPUs, usual cache instructions work. + */ +.macro xlp_flush_l1_dcache + mfc0 t0, CP0_PRID + andi t0, t0, PRID_IMP_MASK + slt t1, t0, 0x1200 + beqz t1, 15f + nop + + /* XLP8xx low level cache flush */ + li t0, LSU_DEBUG_DATA0 + li t1, LSU_DEBUG_ADDR + li t2, 0 /* index */ + li t3, 0x1000 /* loop count */ +11: + sll v0, t2, 5 + mtcr zero, t0 + ori v1, v0, 0x3 /* way0 | write_enable | write_active */ + mtcr v1, t1 +12: + mfcr v1, t1 + andi v1, 0x1 /* wait for write_active == 0 */ + bnez v1, 12b + nop + mtcr zero, t0 + ori v1, v0, 0x7 /* way1 | write_enable | write_active */ + mtcr v1, t1 +13: + mfcr v1, t1 + andi v1, 0x1 /* wait for write_active == 0 */ + bnez v1, 13b + nop + addi t2, 1 + bne t3, t2, 11b + nop + b 17f + nop + + /* XLPII CPUs, Invalidate all 64k of L1 D-cache */ +15: + li t0, 0x80000000 + li t1, 0x80010000 +16: cache Index_Writeback_Inv_D, 0(t0) + addiu t0, t0, 32 + bne t0, t1, 16b + nop +17: +.endm + +/* + * nlm_reset_entry will be copied to the reset entry point for + * XLR and XLP. The XLP cores start here when they are woken up. This + * is also the NMI entry point. + * + * We use scratch reg 6/7 to save k0/k1 and check for NMI first. + * + * The data corresponding to reset/NMI is stored at RESET_DATA_PHYS + * location, this will have the thread mask (used when core is woken up) + * and the current NMI handler in case we reached here for an NMI. + * + * When a core or thread is newly woken up, it marks itself ready and + * loops in a 'wait'. When the CPU really needs waking up, we send an NMI + * IPI to it, with the NMI handler set to prom_boot_secondary_cpus + */ + .set noreorder + .set noat + .set arch=xlr /* for mfcr/mtcr, XLR is sufficient */ + +FEXPORT(nlm_reset_entry) + dmtc0 k0, $22, 6 + dmtc0 k1, $22, 7 + mfc0 k0, CP0_STATUS + li k1, 0x80000 + and k1, k0, k1 + beqz k1, 1f /* go to real reset entry */ + nop + li k1, CKSEG1ADDR(RESET_DATA_PHYS) /* NMI */ + ld k0, BOOT_NMI_HANDLER(k1) + jr k0 + nop + +1: /* Entry point on core wakeup */ + mfc0 t0, CP0_PRID /* processor ID */ + andi t0, PRID_IMP_MASK + li t1, 0x1500 /* XLP 9xx */ + beq t0, t1, 2f /* does not need to set coherent */ + nop + + li t1, 0x1300 /* XLP 5xx */ + beq t0, t1, 2f /* does not need to set coherent */ + nop + + /* set bit in SYS coherent register for the core */ + mfc0 t0, CP0_EBASE + mfc0 t1, CP0_EBASE + srl t1, 5 + andi t1, 0x3 /* t1 <- node */ + li t2, 0x40000 + mul t3, t2, t1 /* t3 = node * 0x40000 */ + srl t0, t0, 2 + and t0, t0, 0x7 /* t0 <- core */ + li t1, 0x1 + sll t0, t1, t0 + nor t0, t0, zero /* t0 <- ~(1 << core) */ + li t2, SYS_CPU_COHERENT_BASE + add t2, t2, t3 /* t2 <- SYS offset for node */ + lw t1, 0(t2) + and t1, t1, t0 + sw t1, 0(t2) + + /* read back to ensure complete */ + lw t1, 0(t2) + sync + +2: + /* Configure LSU on Non-0 Cores. */ + xlp_config_lsu + /* FALL THROUGH */ + +/* + * Wake up sibling threads from the initial thread in a core. + */ +EXPORT(nlm_boot_siblings) + /* core L1D flush before enable threads */ + xlp_flush_l1_dcache + /* save ra and sp, will be used later (only for boot cpu) */ + dmtc0 ra, $22, 6 + dmtc0 sp, $22, 7 + /* Enable hw threads by writing to MAP_THREADMODE of the core */ + li t0, CKSEG1ADDR(RESET_DATA_PHYS) + lw t1, BOOT_THREAD_MODE(t0) /* t1 <- thread mode */ + li t0, ((CPU_BLOCKID_MAP << 8) | MAP_THREADMODE) + mfcr t2, t0 + or t2, t2, t1 + mtcr t2, t0 + + /* + * The new hardware thread starts at the next instruction + * For all the cases other than core 0 thread 0, we will + * jump to the secondary wait function. + + * NOTE: All GPR contents are lost after the mtcr above! + */ + mfc0 v0, CP0_EBASE + andi v0, 0x3ff /* v0 <- node/core */ + + /* + * Errata: to avoid potential live lock, setup IFU_BRUB_RESERVE + * when running 4 threads per core + */ + andi v1, v0, 0x3 /* v1 <- thread id */ + bnez v1, 2f + nop + + /* thread 0 of each core. */ + li t0, CKSEG1ADDR(RESET_DATA_PHYS) + lw t1, BOOT_THREAD_MODE(t0) /* t1 <- thread mode */ + subu t1, 0x3 /* 4-thread per core mode? */ + bnez t1, 2f + nop + + li t0, IFU_BRUB_RESERVE + li t1, 0x55 + mtcr t1, t0 + _ehb +2: + beqz v0, 4f /* boot cpu (cpuid == 0)? */ + nop + + /* setup status reg */ + move t1, zero +#ifdef CONFIG_64BIT + ori t1, ST0_KX +#endif + mtc0 t1, CP0_STATUS + + xlp_early_mmu_init + + /* mark CPU ready */ + li t3, CKSEG1ADDR(RESET_DATA_PHYS) + ADDIU t1, t3, BOOT_CPU_READY + sll v1, v0, 2 + PTR_ADDU t1, v1 + li t2, 1 + sw t2, 0(t1) + /* Wait until NMI hits */ +3: wait + b 3b + nop + + /* + * For the boot CPU, we have to restore ra and sp and return, rest + * of the registers will be restored by the caller + */ +4: + dmfc0 ra, $22, 6 + dmfc0 sp, $22, 7 + jr ra + nop +EXPORT(nlm_reset_entry_end) + +LEAF(nlm_init_boot_cpu) +#ifdef CONFIG_CPU_XLP + xlp_config_lsu + xlp_early_mmu_init +#endif + jr ra + nop +END(nlm_init_boot_cpu) diff --git a/arch/mips/netlogic/common/smp.c b/arch/mips/netlogic/common/smp.c new file mode 100644 index 000000000..39a300bd6 --- /dev/null +++ b/arch/mips/netlogic/common/smp.c @@ -0,0 +1,285 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/sched/task_stack.h> +#include <linux/smp.h> +#include <linux/irq.h> + +#include <asm/mmu_context.h> + +#include <asm/netlogic/interrupt.h> +#include <asm/netlogic/mips-extns.h> +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/common.h> + +#if defined(CONFIG_CPU_XLP) +#include <asm/netlogic/xlp-hal/iomap.h> +#include <asm/netlogic/xlp-hal/xlp.h> +#include <asm/netlogic/xlp-hal/pic.h> +#elif defined(CONFIG_CPU_XLR) +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> +#include <asm/netlogic/xlr/xlr.h> +#else +#error "Unknown CPU" +#endif + +void nlm_send_ipi_single(int logical_cpu, unsigned int action) +{ + unsigned int hwtid; + uint64_t picbase; + + /* node id is part of hwtid, and needed for send_ipi */ + hwtid = cpu_logical_map(logical_cpu); + picbase = nlm_get_node(nlm_hwtid_to_node(hwtid))->picbase; + + if (action & SMP_CALL_FUNCTION) + nlm_pic_send_ipi(picbase, hwtid, IRQ_IPI_SMP_FUNCTION, 0); + if (action & SMP_RESCHEDULE_YOURSELF) + nlm_pic_send_ipi(picbase, hwtid, IRQ_IPI_SMP_RESCHEDULE, 0); +} + +void nlm_send_ipi_mask(const struct cpumask *mask, unsigned int action) +{ + int cpu; + + for_each_cpu(cpu, mask) { + nlm_send_ipi_single(cpu, action); + } +} + +/* IRQ_IPI_SMP_FUNCTION Handler */ +void nlm_smp_function_ipi_handler(struct irq_desc *desc) +{ + unsigned int irq = irq_desc_get_irq(desc); + clear_c0_eimr(irq); + ack_c0_eirr(irq); + generic_smp_call_function_interrupt(); + set_c0_eimr(irq); +} + +/* IRQ_IPI_SMP_RESCHEDULE handler */ +void nlm_smp_resched_ipi_handler(struct irq_desc *desc) +{ + unsigned int irq = irq_desc_get_irq(desc); + clear_c0_eimr(irq); + ack_c0_eirr(irq); + scheduler_ipi(); + set_c0_eimr(irq); +} + +/* + * Called before going into mips code, early cpu init + */ +void nlm_early_init_secondary(int cpu) +{ + change_c0_config(CONF_CM_CMASK, 0x3); +#ifdef CONFIG_CPU_XLP + xlp_mmu_init(); +#endif + write_c0_ebase(nlm_current_node()->ebase); +} + +/* + * Code to run on secondary just after probing the CPU + */ +static void nlm_init_secondary(void) +{ + int hwtid; + + hwtid = hard_smp_processor_id(); + cpu_set_core(¤t_cpu_data, hwtid / NLM_THREADS_PER_CORE); + current_cpu_data.package = nlm_nodeid(); + nlm_percpu_init(hwtid); + nlm_smp_irq_init(hwtid); +} + +void nlm_prepare_cpus(unsigned int max_cpus) +{ + /* declare we are SMT capable */ + smp_num_siblings = nlm_threads_per_core; +} + +void nlm_smp_finish(void) +{ + local_irq_enable(); +} + +/* + * Boot all other cpus in the system, initialize them, and bring them into + * the boot function + */ +unsigned long nlm_next_gp; +unsigned long nlm_next_sp; +static cpumask_t phys_cpu_present_mask; + +int nlm_boot_secondary(int logical_cpu, struct task_struct *idle) +{ + uint64_t picbase; + int hwtid; + + hwtid = cpu_logical_map(logical_cpu); + picbase = nlm_get_node(nlm_hwtid_to_node(hwtid))->picbase; + + nlm_next_sp = (unsigned long)__KSTK_TOS(idle); + nlm_next_gp = (unsigned long)task_thread_info(idle); + + /* barrier for sp/gp store above */ + __sync(); + nlm_pic_send_ipi(picbase, hwtid, 1, 1); /* NMI */ + + return 0; +} + +void __init nlm_smp_setup(void) +{ + unsigned int boot_cpu; + int num_cpus, i, ncore, node; + volatile u32 *cpu_ready = nlm_get_boot_data(BOOT_CPU_READY); + + boot_cpu = hard_smp_processor_id(); + cpumask_clear(&phys_cpu_present_mask); + + cpumask_set_cpu(boot_cpu, &phys_cpu_present_mask); + __cpu_number_map[boot_cpu] = 0; + __cpu_logical_map[0] = boot_cpu; + set_cpu_possible(0, true); + + num_cpus = 1; + for (i = 0; i < NR_CPUS; i++) { + /* + * cpu_ready array is not set for the boot_cpu, + * it is only set for ASPs (see smpboot.S) + */ + if (cpu_ready[i]) { + cpumask_set_cpu(i, &phys_cpu_present_mask); + __cpu_number_map[i] = num_cpus; + __cpu_logical_map[num_cpus] = i; + set_cpu_possible(num_cpus, true); + node = nlm_hwtid_to_node(i); + cpumask_set_cpu(num_cpus, &nlm_get_node(node)->cpumask); + ++num_cpus; + } + } + + pr_info("Physical CPU mask: %*pb\n", + cpumask_pr_args(&phys_cpu_present_mask)); + pr_info("Possible CPU mask: %*pb\n", + cpumask_pr_args(cpu_possible_mask)); + + /* check with the cores we have woken up */ + for (ncore = 0, i = 0; i < NLM_NR_NODES; i++) + ncore += hweight32(nlm_get_node(i)->coremask); + + pr_info("Detected (%dc%dt) %d Slave CPU(s)\n", ncore, + nlm_threads_per_core, num_cpus); + + /* switch NMI handler to boot CPUs */ + nlm_set_nmi_handler(nlm_boot_secondary_cpus); +} + +static int nlm_parse_cpumask(cpumask_t *wakeup_mask) +{ + uint32_t core0_thr_mask, core_thr_mask; + int threadmode, i, j; + + core0_thr_mask = 0; + for (i = 0; i < NLM_THREADS_PER_CORE; i++) + if (cpumask_test_cpu(i, wakeup_mask)) + core0_thr_mask |= (1 << i); + switch (core0_thr_mask) { + case 1: + nlm_threads_per_core = 1; + threadmode = 0; + break; + case 3: + nlm_threads_per_core = 2; + threadmode = 2; + break; + case 0xf: + nlm_threads_per_core = 4; + threadmode = 3; + break; + default: + goto unsupp; + } + + /* Verify other cores CPU masks */ + for (i = 0; i < NR_CPUS; i += NLM_THREADS_PER_CORE) { + core_thr_mask = 0; + for (j = 0; j < NLM_THREADS_PER_CORE; j++) + if (cpumask_test_cpu(i + j, wakeup_mask)) + core_thr_mask |= (1 << j); + if (core_thr_mask != 0 && core_thr_mask != core0_thr_mask) + goto unsupp; + } + return threadmode; + +unsupp: + panic("Unsupported CPU mask %*pb", cpumask_pr_args(wakeup_mask)); + return 0; +} + +int nlm_wakeup_secondary_cpus(void) +{ + u32 *reset_data; + int threadmode; + + /* verify the mask and setup core config variables */ + threadmode = nlm_parse_cpumask(&nlm_cpumask); + + /* Setup CPU init parameters */ + reset_data = nlm_get_boot_data(BOOT_THREAD_MODE); + *reset_data = threadmode; + +#ifdef CONFIG_CPU_XLP + xlp_wakeup_secondary_cpus(); +#else + xlr_wakeup_secondary_cpus(); +#endif + return 0; +} + +const struct plat_smp_ops nlm_smp_ops = { + .send_ipi_single = nlm_send_ipi_single, + .send_ipi_mask = nlm_send_ipi_mask, + .init_secondary = nlm_init_secondary, + .smp_finish = nlm_smp_finish, + .boot_secondary = nlm_boot_secondary, + .smp_setup = nlm_smp_setup, + .prepare_cpus = nlm_prepare_cpus, +}; diff --git a/arch/mips/netlogic/common/smpboot.S b/arch/mips/netlogic/common/smpboot.S new file mode 100644 index 000000000..509c1a7e7 --- /dev/null +++ b/arch/mips/netlogic/common/smpboot.S @@ -0,0 +1,141 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + + +#include <asm/asm.h> +#include <asm/asm-offsets.h> +#include <asm/regdef.h> +#include <asm/mipsregs.h> +#include <asm/stackframe.h> +#include <asm/asmmacro.h> +#include <asm/addrspace.h> + +#include <asm/netlogic/common.h> + +#include <asm/netlogic/xlp-hal/iomap.h> +#include <asm/netlogic/xlp-hal/xlp.h> +#include <asm/netlogic/xlp-hal/sys.h> +#include <asm/netlogic/xlp-hal/cpucontrol.h> + + .set noreorder + .set noat + .set arch=xlr /* for mfcr/mtcr, XLR is sufficient */ + +/* Called by the boot cpu to wake up its sibling threads */ +NESTED(xlp_boot_core0_siblings, PT_SIZE, sp) + /* CPU register contents lost when enabling threads, save them first */ + SAVE_ALL + sync + /* find the location to which nlm_boot_siblings was relocated */ + li t0, CKSEG1ADDR(RESET_VEC_PHYS) + PTR_LA t1, nlm_reset_entry + PTR_LA t2, nlm_boot_siblings + dsubu t2, t1 + daddu t2, t0 + /* call it */ + jalr t2 + nop + RESTORE_ALL + jr ra + nop +END(xlp_boot_core0_siblings) + +NESTED(nlm_boot_secondary_cpus, 16, sp) + /* Initialize CP0 Status */ + move t1, zero +#ifdef CONFIG_64BIT + ori t1, ST0_KX +#endif + mtc0 t1, CP0_STATUS + PTR_LA t1, nlm_next_sp + PTR_L sp, 0(t1) + PTR_LA t1, nlm_next_gp + PTR_L gp, 0(t1) + + /* a0 has the processor id */ + mfc0 a0, CP0_EBASE + andi a0, 0x3ff /* a0 <- node/core */ + PTR_LA t0, nlm_early_init_secondary + jalr t0 + nop + + PTR_LA t0, smp_bootstrap + jr t0 + nop +END(nlm_boot_secondary_cpus) + +/* + * In case of RMIboot bootloader which is used on XLR boards, the CPUs + * be already woken up and waiting in bootloader code. + * This will get them out of the bootloader code and into linux. Needed + * because the bootloader area will be taken and initialized by linux. + */ +NESTED(nlm_rmiboot_preboot, 16, sp) + mfc0 t0, $15, 1 /* read ebase */ + andi t0, 0x1f /* t0 has the processor_id() */ + andi t2, t0, 0x3 /* thread num */ + sll t0, 2 /* offset in cpu array */ + + li t3, CKSEG1ADDR(RESET_DATA_PHYS) + ADDIU t1, t3, BOOT_CPU_READY + ADDU t1, t0 + li t3, 1 + sw t3, 0(t1) + + bnez t2, 1f /* skip thread programming */ + nop /* for thread id != 0 */ + + /* + * XLR MMU setup only for first thread in core + */ + li t0, 0x400 + mfcr t1, t0 + li t2, 6 /* XLR thread mode mask */ + nor t3, t2, zero + and t2, t1, t2 /* t2 - current thread mode */ + li v0, CKSEG1ADDR(RESET_DATA_PHYS) + lw v1, BOOT_THREAD_MODE(v0) /* v1 - new thread mode */ + sll v1, 1 + beq v1, t2, 1f /* same as request value */ + nop /* nothing to do */ + + and t2, t1, t3 /* mask out old thread mode */ + or t1, t2, v1 /* put in new value */ + mtcr t1, t0 /* update core control */ + + /* wait for NMI to hit */ +1: wait + b 1b + nop +END(nlm_rmiboot_preboot) diff --git a/arch/mips/netlogic/common/time.c b/arch/mips/netlogic/common/time.c new file mode 100644 index 000000000..cbbf0d482 --- /dev/null +++ b/arch/mips/netlogic/common/time.c @@ -0,0 +1,110 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/init.h> + +#include <asm/time.h> +#include <asm/cpu-features.h> + +#include <asm/netlogic/interrupt.h> +#include <asm/netlogic/common.h> +#include <asm/netlogic/haldefs.h> + +#if defined(CONFIG_CPU_XLP) +#include <asm/netlogic/xlp-hal/iomap.h> +#include <asm/netlogic/xlp-hal/xlp.h> +#include <asm/netlogic/xlp-hal/sys.h> +#include <asm/netlogic/xlp-hal/pic.h> +#elif defined(CONFIG_CPU_XLR) +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> +#include <asm/netlogic/xlr/xlr.h> +#else +#error "Unknown CPU" +#endif + +unsigned int get_c0_compare_int(void) +{ + return IRQ_TIMER; +} + +static u64 nlm_get_pic_timer(struct clocksource *cs) +{ + uint64_t picbase = nlm_get_node(0)->picbase; + + return ~nlm_pic_read_timer(picbase, PIC_CLOCK_TIMER); +} + +static u64 nlm_get_pic_timer32(struct clocksource *cs) +{ + uint64_t picbase = nlm_get_node(0)->picbase; + + return ~nlm_pic_read_timer32(picbase, PIC_CLOCK_TIMER); +} + +static struct clocksource csrc_pic = { + .name = "PIC", + .flags = CLOCK_SOURCE_IS_CONTINUOUS, +}; + +static void nlm_init_pic_timer(void) +{ + uint64_t picbase = nlm_get_node(0)->picbase; + u32 picfreq; + + nlm_pic_set_timer(picbase, PIC_CLOCK_TIMER, ~0ULL, 0, 0); + if (current_cpu_data.cputype == CPU_XLR) { + csrc_pic.mask = CLOCKSOURCE_MASK(32); + csrc_pic.read = nlm_get_pic_timer32; + } else { + csrc_pic.mask = CLOCKSOURCE_MASK(64); + csrc_pic.read = nlm_get_pic_timer; + } + csrc_pic.rating = 1000; + picfreq = pic_timer_freq(); + clocksource_register_hz(&csrc_pic, picfreq); + pr_info("PIC clock source added, frequency %d\n", picfreq); +} + +void __init plat_time_init(void) +{ + nlm_init_pic_timer(); + mips_hpt_frequency = nlm_get_cpu_frequency(); + if (current_cpu_type() == CPU_XLR) + preset_lpj = mips_hpt_frequency / (3 * HZ); + else + preset_lpj = mips_hpt_frequency / (2 * HZ); + pr_info("MIPS counter frequency [%ld]\n", + (unsigned long)mips_hpt_frequency); +} diff --git a/arch/mips/netlogic/xlp/Makefile b/arch/mips/netlogic/xlp/Makefile new file mode 100644 index 000000000..d62465717 --- /dev/null +++ b/arch/mips/netlogic/xlp/Makefile @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-y += setup.o nlm_hal.o cop2-ex.o dt.o +obj-$(CONFIG_SMP) += wakeup.o +ifdef CONFIG_USB +obj-y += usb-init.o +obj-y += usb-init-xlp2.o +endif +ifdef CONFIG_SATA_AHCI +obj-y += ahci-init.o +obj-y += ahci-init-xlp2.o +endif diff --git a/arch/mips/netlogic/xlp/ahci-init-xlp2.c b/arch/mips/netlogic/xlp/ahci-init-xlp2.c new file mode 100644 index 000000000..c11b9c7dc --- /dev/null +++ b/arch/mips/netlogic/xlp/ahci-init-xlp2.c @@ -0,0 +1,390 @@ +/* + * Copyright (c) 2003-2014 Broadcom Corporation + * All Rights Reserved + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the Broadcom + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/dma-mapping.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/irq.h> +#include <linux/bitops.h> +#include <linux/pci_ids.h> +#include <linux/nodemask.h> + +#include <asm/cpu.h> +#include <asm/mipsregs.h> + +#include <asm/netlogic/common.h> +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/mips-extns.h> +#include <asm/netlogic/xlp-hal/xlp.h> +#include <asm/netlogic/xlp-hal/iomap.h> + +#define SATA_CTL 0x0 +#define SATA_STATUS 0x1 /* Status Reg */ +#define SATA_INT 0x2 /* Interrupt Reg */ +#define SATA_INT_MASK 0x3 /* Interrupt Mask Reg */ +#define SATA_BIU_TIMEOUT 0x4 +#define AXIWRSPERRLOG 0x5 +#define AXIRDSPERRLOG 0x6 +#define BiuTimeoutLow 0x7 +#define BiuTimeoutHi 0x8 +#define BiuSlvErLow 0x9 +#define BiuSlvErHi 0xa +#define IO_CONFIG_SWAP_DIS 0xb +#define CR_REG_TIMER 0xc +#define CORE_ID 0xd +#define AXI_SLAVE_OPT1 0xe +#define PHY_MEM_ACCESS 0xf +#define PHY0_CNTRL 0x10 +#define PHY0_STAT 0x11 +#define PHY0_RX_ALIGN 0x12 +#define PHY0_RX_EQ_LO 0x13 +#define PHY0_RX_EQ_HI 0x14 +#define PHY0_BIST_LOOP 0x15 +#define PHY1_CNTRL 0x16 +#define PHY1_STAT 0x17 +#define PHY1_RX_ALIGN 0x18 +#define PHY1_RX_EQ_LO 0x19 +#define PHY1_RX_EQ_HI 0x1a +#define PHY1_BIST_LOOP 0x1b +#define RdExBase 0x1c +#define RdExLimit 0x1d +#define CacheAllocBase 0x1e +#define CacheAllocLimit 0x1f +#define BiuSlaveCmdGstNum 0x20 + +/*SATA_CTL Bits */ +#define SATA_RST_N BIT(0) /* Active low reset sata_core phy */ +#define SataCtlReserve0 BIT(1) +#define M_CSYSREQ BIT(2) /* AXI master low power, not used */ +#define S_CSYSREQ BIT(3) /* AXI slave low power, not used */ +#define P0_CP_DET BIT(8) /* Reserved, bring in from pad */ +#define P0_MP_SW BIT(9) /* Mech Switch */ +#define P0_DISABLE BIT(10) /* disable p0 */ +#define P0_ACT_LED_EN BIT(11) /* Active LED enable */ +#define P0_IRST_HARD_SYNTH BIT(12) /* PHY hard synth reset */ +#define P0_IRST_HARD_TXRX BIT(13) /* PHY lane hard reset */ +#define P0_IRST_POR BIT(14) /* PHY power on reset*/ +#define P0_IPDTXL BIT(15) /* PHY Tx lane dis/power down */ +#define P0_IPDRXL BIT(16) /* PHY Rx lane dis/power down */ +#define P0_IPDIPDMSYNTH BIT(17) /* PHY synthesizer dis/porwer down */ +#define P0_CP_POD_EN BIT(18) /* CP_POD enable */ +#define P0_AT_BYPASS BIT(19) /* P0 address translation by pass */ +#define P1_CP_DET BIT(20) /* Reserved,Cold Detect */ +#define P1_MP_SW BIT(21) /* Mech Switch */ +#define P1_DISABLE BIT(22) /* disable p1 */ +#define P1_ACT_LED_EN BIT(23) /* Active LED enable */ +#define P1_IRST_HARD_SYNTH BIT(24) /* PHY hard synth reset */ +#define P1_IRST_HARD_TXRX BIT(25) /* PHY lane hard reset */ +#define P1_IRST_POR BIT(26) /* PHY power on reset*/ +#define P1_IPDTXL BIT(27) /* PHY Tx lane dis/porwer down */ +#define P1_IPDRXL BIT(28) /* PHY Rx lane dis/porwer down */ +#define P1_IPDIPDMSYNTH BIT(29) /* PHY synthesizer dis/porwer down */ +#define P1_CP_POD_EN BIT(30) +#define P1_AT_BYPASS BIT(31) /* P1 address translation by pass */ + +/* Status register */ +#define M_CACTIVE BIT(0) /* m_cactive, not used */ +#define S_CACTIVE BIT(1) /* s_cactive, not used */ +#define P0_PHY_READY BIT(8) /* phy is ready */ +#define P0_CP_POD BIT(9) /* Cold PowerOn */ +#define P0_SLUMBER BIT(10) /* power mode slumber */ +#define P0_PATIAL BIT(11) /* power mode patial */ +#define P0_PHY_SIG_DET BIT(12) /* phy dignal detect */ +#define P0_PHY_CALI BIT(13) /* phy calibration done */ +#define P1_PHY_READY BIT(16) /* phy is ready */ +#define P1_CP_POD BIT(17) /* Cold PowerOn */ +#define P1_SLUMBER BIT(18) /* power mode slumber */ +#define P1_PATIAL BIT(19) /* power mode patial */ +#define P1_PHY_SIG_DET BIT(20) /* phy dignal detect */ +#define P1_PHY_CALI BIT(21) /* phy calibration done */ + +/* SATA CR_REG_TIMER bits */ +#define CR_TIME_SCALE (0x1000 << 0) + +/* SATA PHY specific registers start and end address */ +#define RXCDRCALFOSC0 0x0065 +#define CALDUTY 0x006e +#define RXDPIF 0x8065 +#define PPMDRIFTMAX_HI 0x80A4 + +#define nlm_read_sata_reg(b, r) nlm_read_reg(b, r) +#define nlm_write_sata_reg(b, r, v) nlm_write_reg(b, r, v) +#define nlm_get_sata_pcibase(node) \ + nlm_pcicfg_base(XLP9XX_IO_SATA_OFFSET(node)) +#define nlm_get_sata_regbase(node) \ + (nlm_get_sata_pcibase(node) + 0x100) + +/* SATA PHY config for register block 1 0x0065 .. 0x006e */ +static const u8 sata_phy_config1[] = { + 0xC9, 0xC9, 0x07, 0x07, 0x18, 0x18, 0x01, 0x01, 0x22, 0x00 +}; + +/* SATA PHY config for register block 2 0x8065 .. 0x80A4 */ +static const u8 sata_phy_config2[] = { + 0xAA, 0x00, 0x4C, 0xC9, 0xC9, 0x07, 0x07, 0x18, + 0x18, 0x05, 0x0C, 0x10, 0x00, 0x10, 0x00, 0xFF, + 0xCF, 0xF7, 0xE1, 0xF5, 0xFD, 0xFD, 0xFF, 0xFF, + 0xFF, 0xFF, 0xE3, 0xE7, 0xDB, 0xF5, 0xFD, 0xFD, + 0xF5, 0xF5, 0xFF, 0xFF, 0xE3, 0xE7, 0xDB, 0xF5, + 0xFD, 0xFD, 0xF5, 0xF5, 0xFF, 0xFF, 0xFF, 0xF5, + 0x3F, 0x00, 0x32, 0x00, 0x03, 0x01, 0x05, 0x05, + 0x04, 0x00, 0x00, 0x08, 0x04, 0x00, 0x00, 0x04, +}; + +const int sata_phy_debug = 0; /* set to verify PHY writes */ + +static void sata_clear_glue_reg(u64 regbase, u32 off, u32 bit) +{ + u32 reg_val; + + reg_val = nlm_read_sata_reg(regbase, off); + nlm_write_sata_reg(regbase, off, (reg_val & ~bit)); +} + +static void sata_set_glue_reg(u64 regbase, u32 off, u32 bit) +{ + u32 reg_val; + + reg_val = nlm_read_sata_reg(regbase, off); + nlm_write_sata_reg(regbase, off, (reg_val | bit)); +} + +static void write_phy_reg(u64 regbase, u32 addr, u32 physel, u8 data) +{ + nlm_write_sata_reg(regbase, PHY_MEM_ACCESS, + (1u << 31) | (physel << 24) | (data << 16) | addr); + udelay(850); +} + +static u8 read_phy_reg(u64 regbase, u32 addr, u32 physel) +{ + u32 val; + + nlm_write_sata_reg(regbase, PHY_MEM_ACCESS, + (0 << 31) | (physel << 24) | (0 << 16) | addr); + udelay(850); + val = nlm_read_sata_reg(regbase, PHY_MEM_ACCESS); + return (val >> 16) & 0xff; +} + +static void config_sata_phy(u64 regbase) +{ + u32 port, i, reg; + u8 val; + + for (port = 0; port < 2; port++) { + for (i = 0, reg = RXCDRCALFOSC0; reg <= CALDUTY; reg++, i++) + write_phy_reg(regbase, reg, port, sata_phy_config1[i]); + + for (i = 0, reg = RXDPIF; reg <= PPMDRIFTMAX_HI; reg++, i++) + write_phy_reg(regbase, reg, port, sata_phy_config2[i]); + + /* Fix for PHY link up failures at lower temperatures */ + write_phy_reg(regbase, 0x800F, port, 0x1f); + + val = read_phy_reg(regbase, 0x0029, port); + write_phy_reg(regbase, 0x0029, port, val | (0x7 << 1)); + + val = read_phy_reg(regbase, 0x0056, port); + write_phy_reg(regbase, 0x0056, port, val & ~(1 << 3)); + + val = read_phy_reg(regbase, 0x0018, port); + write_phy_reg(regbase, 0x0018, port, val & ~(0x7 << 0)); + } +} + +static void check_phy_register(u64 regbase, u32 addr, u32 physel, u8 xdata) +{ + u8 data; + + data = read_phy_reg(regbase, addr, physel); + pr_info("PHY read addr = 0x%x physel = %d data = 0x%x %s\n", + addr, physel, data, data == xdata ? "TRUE" : "FALSE"); +} + +static void verify_sata_phy_config(u64 regbase) +{ + u32 port, i, reg; + + for (port = 0; port < 2; port++) { + for (i = 0, reg = RXCDRCALFOSC0; reg <= CALDUTY; reg++, i++) + check_phy_register(regbase, reg, port, + sata_phy_config1[i]); + + for (i = 0, reg = RXDPIF; reg <= PPMDRIFTMAX_HI; reg++, i++) + check_phy_register(regbase, reg, port, + sata_phy_config2[i]); + } +} + +static void nlm_sata_firmware_init(int node) +{ + u32 reg_val; + u64 regbase; + int n; + + pr_info("Initializing XLP9XX On-chip AHCI...\n"); + regbase = nlm_get_sata_regbase(node); + + /* Reset port0 */ + sata_clear_glue_reg(regbase, SATA_CTL, P0_IRST_POR); + sata_clear_glue_reg(regbase, SATA_CTL, P0_IRST_HARD_TXRX); + sata_clear_glue_reg(regbase, SATA_CTL, P0_IRST_HARD_SYNTH); + sata_clear_glue_reg(regbase, SATA_CTL, P0_IPDTXL); + sata_clear_glue_reg(regbase, SATA_CTL, P0_IPDRXL); + sata_clear_glue_reg(regbase, SATA_CTL, P0_IPDIPDMSYNTH); + + /* port1 */ + sata_clear_glue_reg(regbase, SATA_CTL, P1_IRST_POR); + sata_clear_glue_reg(regbase, SATA_CTL, P1_IRST_HARD_TXRX); + sata_clear_glue_reg(regbase, SATA_CTL, P1_IRST_HARD_SYNTH); + sata_clear_glue_reg(regbase, SATA_CTL, P1_IPDTXL); + sata_clear_glue_reg(regbase, SATA_CTL, P1_IPDRXL); + sata_clear_glue_reg(regbase, SATA_CTL, P1_IPDIPDMSYNTH); + udelay(300); + + /* Set PHY */ + sata_set_glue_reg(regbase, SATA_CTL, P0_IPDTXL); + sata_set_glue_reg(regbase, SATA_CTL, P0_IPDRXL); + sata_set_glue_reg(regbase, SATA_CTL, P0_IPDIPDMSYNTH); + sata_set_glue_reg(regbase, SATA_CTL, P1_IPDTXL); + sata_set_glue_reg(regbase, SATA_CTL, P1_IPDRXL); + sata_set_glue_reg(regbase, SATA_CTL, P1_IPDIPDMSYNTH); + + udelay(1000); + sata_set_glue_reg(regbase, SATA_CTL, P0_IRST_POR); + udelay(1000); + sata_set_glue_reg(regbase, SATA_CTL, P1_IRST_POR); + udelay(1000); + + /* setup PHY */ + config_sata_phy(regbase); + if (sata_phy_debug) + verify_sata_phy_config(regbase); + + udelay(1000); + sata_set_glue_reg(regbase, SATA_CTL, P0_IRST_HARD_TXRX); + sata_set_glue_reg(regbase, SATA_CTL, P0_IRST_HARD_SYNTH); + sata_set_glue_reg(regbase, SATA_CTL, P1_IRST_HARD_TXRX); + sata_set_glue_reg(regbase, SATA_CTL, P1_IRST_HARD_SYNTH); + udelay(300); + + /* Override reset in serial PHY mode */ + sata_set_glue_reg(regbase, CR_REG_TIMER, CR_TIME_SCALE); + /* Set reset SATA */ + sata_set_glue_reg(regbase, SATA_CTL, SATA_RST_N); + sata_set_glue_reg(regbase, SATA_CTL, M_CSYSREQ); + sata_set_glue_reg(regbase, SATA_CTL, S_CSYSREQ); + + pr_debug("Waiting for PHYs to come up.\n"); + n = 10000; + do { + reg_val = nlm_read_sata_reg(regbase, SATA_STATUS); + if ((reg_val & P1_PHY_READY) && (reg_val & P0_PHY_READY)) + break; + udelay(10); + } while (--n > 0); + + if (reg_val & P0_PHY_READY) + pr_info("PHY0 is up.\n"); + else + pr_info("PHY0 is down.\n"); + if (reg_val & P1_PHY_READY) + pr_info("PHY1 is up.\n"); + else + pr_info("PHY1 is down.\n"); + + pr_info("XLP AHCI Init Done.\n"); +} + +static int __init nlm_ahci_init(void) +{ + int node; + + if (!cpu_is_xlp9xx()) + return 0; + for (node = 0; node < NLM_NR_NODES; node++) + if (nlm_node_present(node)) + nlm_sata_firmware_init(node); + return 0; +} + +static void nlm_sata_intr_ack(struct irq_data *data) +{ + u64 regbase; + u32 val; + int node; + + node = data->irq / NLM_IRQS_PER_NODE; + regbase = nlm_get_sata_regbase(node); + val = nlm_read_sata_reg(regbase, SATA_INT); + sata_set_glue_reg(regbase, SATA_INT, val); +} + +static void nlm_sata_fixup_bar(struct pci_dev *dev) +{ + dev->resource[5] = dev->resource[0]; + memset(&dev->resource[0], 0, sizeof(dev->resource[0])); +} + +static void nlm_sata_fixup_final(struct pci_dev *dev) +{ + u32 val; + u64 regbase; + int node; + + /* Find end bridge function to find node */ + node = xlp_socdev_to_node(dev); + regbase = nlm_get_sata_regbase(node); + + /* clear pending interrupts and then enable them */ + val = nlm_read_sata_reg(regbase, SATA_INT); + sata_set_glue_reg(regbase, SATA_INT, val); + + /* Enable only the core interrupt */ + sata_set_glue_reg(regbase, SATA_INT_MASK, 0x1); + + dev->irq = nlm_irq_to_xirq(node, PIC_SATA_IRQ); + nlm_set_pic_extra_ack(node, PIC_SATA_IRQ, nlm_sata_intr_ack); +} + +arch_initcall(nlm_ahci_init); + +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_XLP9XX_SATA, + nlm_sata_fixup_bar); + +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_XLP9XX_SATA, + nlm_sata_fixup_final); diff --git a/arch/mips/netlogic/xlp/ahci-init.c b/arch/mips/netlogic/xlp/ahci-init.c new file mode 100644 index 000000000..92be1a325 --- /dev/null +++ b/arch/mips/netlogic/xlp/ahci-init.c @@ -0,0 +1,209 @@ +/* + * Copyright (c) 2003-2014 Broadcom Corporation + * All Rights Reserved + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the Broadcom + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/dma-mapping.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/irq.h> +#include <linux/bitops.h> + +#include <asm/cpu.h> +#include <asm/mipsregs.h> + +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/xlp-hal/xlp.h> +#include <asm/netlogic/common.h> +#include <asm/netlogic/xlp-hal/iomap.h> +#include <asm/netlogic/mips-extns.h> + +#define SATA_CTL 0x0 +#define SATA_STATUS 0x1 /* Status Reg */ +#define SATA_INT 0x2 /* Interrupt Reg */ +#define SATA_INT_MASK 0x3 /* Interrupt Mask Reg */ +#define SATA_CR_REG_TIMER 0x4 /* PHY Conrol Timer Reg */ +#define SATA_CORE_ID 0x5 /* Core ID Reg */ +#define SATA_AXI_SLAVE_OPT1 0x6 /* AXI Slave Options Reg */ +#define SATA_PHY_LOS_LEV 0x7 /* PHY LOS Level Reg */ +#define SATA_PHY_MULTI 0x8 /* PHY Multiplier Reg */ +#define SATA_PHY_CLK_SEL 0x9 /* Clock Select Reg */ +#define SATA_PHY_AMP1_GEN1 0xa /* PHY Transmit Amplitude Reg 1 */ +#define SATA_PHY_AMP1_GEN2 0xb /* PHY Transmit Amplitude Reg 2 */ +#define SATA_PHY_AMP1_GEN3 0xc /* PHY Transmit Amplitude Reg 3 */ +#define SATA_PHY_PRE1 0xd /* PHY Transmit Preemphasis Reg 1 */ +#define SATA_PHY_PRE2 0xe /* PHY Transmit Preemphasis Reg 2 */ +#define SATA_PHY_PRE3 0xf /* PHY Transmit Preemphasis Reg 3 */ +#define SATA_SPDMODE 0x10 /* Speed Mode Reg */ +#define SATA_REFCLK 0x11 /* Reference Clock Control Reg */ +#define SATA_BYTE_SWAP_DIS 0x12 /* byte swap disable */ + +/*SATA_CTL Bits */ +#define SATA_RST_N BIT(0) +#define PHY0_RESET_N BIT(16) +#define PHY1_RESET_N BIT(17) +#define PHY2_RESET_N BIT(18) +#define PHY3_RESET_N BIT(19) +#define M_CSYSREQ BIT(2) +#define S_CSYSREQ BIT(3) + +/*SATA_STATUS Bits */ +#define P0_PHY_READY BIT(4) +#define P1_PHY_READY BIT(5) +#define P2_PHY_READY BIT(6) +#define P3_PHY_READY BIT(7) + +#define nlm_read_sata_reg(b, r) nlm_read_reg(b, r) +#define nlm_write_sata_reg(b, r, v) nlm_write_reg(b, r, v) +#define nlm_get_sata_pcibase(node) \ + nlm_pcicfg_base(XLP_IO_SATA_OFFSET(node)) +/* SATA device specific configuration registers are starts at 0x900 offset */ +#define nlm_get_sata_regbase(node) \ + (nlm_get_sata_pcibase(node) + 0x900) + +static void sata_clear_glue_reg(uint64_t regbase, uint32_t off, uint32_t bit) +{ + uint32_t reg_val; + + reg_val = nlm_read_sata_reg(regbase, off); + nlm_write_sata_reg(regbase, off, (reg_val & ~bit)); +} + +static void sata_set_glue_reg(uint64_t regbase, uint32_t off, uint32_t bit) +{ + uint32_t reg_val; + + reg_val = nlm_read_sata_reg(regbase, off); + nlm_write_sata_reg(regbase, off, (reg_val | bit)); +} + +static void nlm_sata_firmware_init(int node) +{ + uint32_t reg_val; + uint64_t regbase; + int i; + + pr_info("XLP AHCI Initialization started.\n"); + regbase = nlm_get_sata_regbase(node); + + /* Reset SATA */ + sata_clear_glue_reg(regbase, SATA_CTL, SATA_RST_N); + /* Reset PHY */ + sata_clear_glue_reg(regbase, SATA_CTL, + (PHY3_RESET_N | PHY2_RESET_N + | PHY1_RESET_N | PHY0_RESET_N)); + + /* Set SATA */ + sata_set_glue_reg(regbase, SATA_CTL, SATA_RST_N); + /* Set PHY */ + sata_set_glue_reg(regbase, SATA_CTL, + (PHY3_RESET_N | PHY2_RESET_N + | PHY1_RESET_N | PHY0_RESET_N)); + + pr_debug("Waiting for PHYs to come up.\n"); + i = 0; + do { + reg_val = nlm_read_sata_reg(regbase, SATA_STATUS); + i++; + } while (((reg_val & 0xF0) != 0xF0) && (i < 10000)); + + for (i = 0; i < 4; i++) { + if (reg_val & (P0_PHY_READY << i)) + pr_info("PHY%d is up.\n", i); + else + pr_info("PHY%d is down.\n", i); + } + + pr_info("XLP AHCI init done.\n"); +} + +static int __init nlm_ahci_init(void) +{ + int node = 0; + int chip = read_c0_prid() & PRID_IMP_MASK; + + if (chip == PRID_IMP_NETLOGIC_XLP3XX) + nlm_sata_firmware_init(node); + return 0; +} + +static void nlm_sata_intr_ack(struct irq_data *data) +{ + uint32_t val = 0; + uint64_t regbase; + + regbase = nlm_get_sata_regbase(nlm_nodeid()); + val = nlm_read_sata_reg(regbase, SATA_INT); + sata_set_glue_reg(regbase, SATA_INT, val); +} + +static void nlm_sata_fixup_bar(struct pci_dev *dev) +{ + /* + * The AHCI resource is in BAR 0, move it to + * BAR 5, where it is expected + */ + dev->resource[5] = dev->resource[0]; + memset(&dev->resource[0], 0, sizeof(dev->resource[0])); +} + +static void nlm_sata_fixup_final(struct pci_dev *dev) +{ + uint32_t val; + uint64_t regbase; + int node = 0; /* XLP3XX does not support multi-node */ + + regbase = nlm_get_sata_regbase(node); + + /* clear pending interrupts and then enable them */ + val = nlm_read_sata_reg(regbase, SATA_INT); + sata_set_glue_reg(regbase, SATA_INT, val); + + /* Mask the core interrupt. If all the interrupts + * are enabled there are spurious interrupt flow + * happening, to avoid only enable core interrupt + * mask. + */ + sata_set_glue_reg(regbase, SATA_INT_MASK, 0x1); + + dev->irq = PIC_SATA_IRQ; + nlm_set_pic_extra_ack(node, PIC_SATA_IRQ, nlm_sata_intr_ack); +} + +arch_initcall(nlm_ahci_init); + +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_NETLOGIC, PCI_DEVICE_ID_NLM_SATA, + nlm_sata_fixup_bar); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_NETLOGIC, PCI_DEVICE_ID_NLM_SATA, + nlm_sata_fixup_final); diff --git a/arch/mips/netlogic/xlp/cop2-ex.c b/arch/mips/netlogic/xlp/cop2-ex.c new file mode 100644 index 000000000..21e439b3d --- /dev/null +++ b/arch/mips/netlogic/xlp/cop2-ex.c @@ -0,0 +1,121 @@ +/* + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2013 Broadcom Corporation. + * + * based on arch/mips/cavium-octeon/cpu.c + * Copyright (C) 2009 Wind River Systems, + * written by Ralf Baechle <ralf@linux-mips.org> + */ +#include <linux/capability.h> +#include <linux/init.h> +#include <linux/irqflags.h> +#include <linux/notifier.h> +#include <linux/prefetch.h> +#include <linux/ptrace.h> +#include <linux/sched.h> +#include <linux/sched/task_stack.h> + +#include <asm/cop2.h> +#include <asm/current.h> +#include <asm/mipsregs.h> +#include <asm/page.h> + +#include <asm/netlogic/mips-extns.h> + +/* + * 64 bit ops are done in inline assembly to support 32 bit + * compilation + */ +void nlm_cop2_save(struct nlm_cop2_state *r) +{ + asm volatile( + ".set push\n" + ".set noat\n" + "dmfc2 $1, $0, 0\n" + "sd $1, 0(%1)\n" + "dmfc2 $1, $0, 1\n" + "sd $1, 8(%1)\n" + "dmfc2 $1, $0, 2\n" + "sd $1, 16(%1)\n" + "dmfc2 $1, $0, 3\n" + "sd $1, 24(%1)\n" + "dmfc2 $1, $1, 0\n" + "sd $1, 0(%2)\n" + "dmfc2 $1, $1, 1\n" + "sd $1, 8(%2)\n" + "dmfc2 $1, $1, 2\n" + "sd $1, 16(%2)\n" + "dmfc2 $1, $1, 3\n" + "sd $1, 24(%2)\n" + ".set pop\n" + : "=m"(*r) + : "r"(r->tx), "r"(r->rx)); + + r->tx_msg_status = __read_32bit_c2_register($2, 0); + r->rx_msg_status = __read_32bit_c2_register($3, 0) & 0x0fffffff; +} + +void nlm_cop2_restore(struct nlm_cop2_state *r) +{ + u32 rstat; + + asm volatile( + ".set push\n" + ".set noat\n" + "ld $1, 0(%1)\n" + "dmtc2 $1, $0, 0\n" + "ld $1, 8(%1)\n" + "dmtc2 $1, $0, 1\n" + "ld $1, 16(%1)\n" + "dmtc2 $1, $0, 2\n" + "ld $1, 24(%1)\n" + "dmtc2 $1, $0, 3\n" + "ld $1, 0(%2)\n" + "dmtc2 $1, $1, 0\n" + "ld $1, 8(%2)\n" + "dmtc2 $1, $1, 1\n" + "ld $1, 16(%2)\n" + "dmtc2 $1, $1, 2\n" + "ld $1, 24(%2)\n" + "dmtc2 $1, $1, 3\n" + ".set pop\n" + : : "m"(*r), "r"(r->tx), "r"(r->rx)); + + __write_32bit_c2_register($2, 0, r->tx_msg_status); + rstat = __read_32bit_c2_register($3, 0) & 0xf0000000u; + __write_32bit_c2_register($3, 0, r->rx_msg_status | rstat); +} + +static int nlm_cu2_call(struct notifier_block *nfb, unsigned long action, + void *data) +{ + unsigned long flags; + unsigned int status; + + switch (action) { + case CU2_EXCEPTION: + if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) + break; + local_irq_save(flags); + KSTK_STATUS(current) |= ST0_CU2; + status = read_c0_status(); + write_c0_status(status | ST0_CU2); + nlm_cop2_restore(&(current->thread.cp2)); + write_c0_status(status & ~ST0_CU2); + local_irq_restore(flags); + pr_info("COP2 access enabled for pid %d (%s)\n", + current->pid, current->comm); + return NOTIFY_BAD; /* Don't call default notifier */ + } + + return NOTIFY_OK; /* Let default notifier send signals */ +} + +static int __init nlm_cu2_setup(void) +{ + return cu2_notifier(nlm_cu2_call, 0); +} +early_initcall(nlm_cu2_setup); diff --git a/arch/mips/netlogic/xlp/dt.c b/arch/mips/netlogic/xlp/dt.c new file mode 100644 index 000000000..c856f2a3e --- /dev/null +++ b/arch/mips/netlogic/xlp/dt.c @@ -0,0 +1,95 @@ +/* + * Copyright 2003-2013 Broadcom Corporation. + * All Rights Reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the Broadcom + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/kernel.h> +#include <linux/memblock.h> + +#include <linux/of_fdt.h> +#include <linux/of_platform.h> +#include <linux/of_device.h> + +#include <asm/prom.h> + +extern u32 __dtb_xlp_evp_begin[], __dtb_xlp_svp_begin[], __dtb_xlp_fvp_begin[], + __dtb_xlp_gvp_begin[], __dtb_xlp_rvp_begin[]; +static void *xlp_fdt_blob; + +void __init *xlp_dt_init(void *fdtp) +{ + if (!fdtp) { + switch (current_cpu_data.processor_id & PRID_IMP_MASK) { +#ifdef CONFIG_DT_XLP_RVP + case PRID_IMP_NETLOGIC_XLP5XX: + fdtp = __dtb_xlp_rvp_begin; + break; +#endif +#ifdef CONFIG_DT_XLP_GVP + case PRID_IMP_NETLOGIC_XLP9XX: + fdtp = __dtb_xlp_gvp_begin; + break; +#endif +#ifdef CONFIG_DT_XLP_FVP + case PRID_IMP_NETLOGIC_XLP2XX: + fdtp = __dtb_xlp_fvp_begin; + break; +#endif +#ifdef CONFIG_DT_XLP_SVP + case PRID_IMP_NETLOGIC_XLP3XX: + fdtp = __dtb_xlp_svp_begin; + break; +#endif +#ifdef CONFIG_DT_XLP_EVP + case PRID_IMP_NETLOGIC_XLP8XX: + fdtp = __dtb_xlp_evp_begin; + break; +#endif + default: + /* Pick a built-in if any, and hope for the best */ + fdtp = __dtb_start; + break; + } + } + xlp_fdt_blob = fdtp; + return fdtp; +} + +void __init xlp_early_init_devtree(void) +{ + __dt_setup_arch(xlp_fdt_blob); +} + +void __init device_tree_init(void) +{ + unflatten_and_copy_device_tree(); +} diff --git a/arch/mips/netlogic/xlp/nlm_hal.c b/arch/mips/netlogic/xlp/nlm_hal.c new file mode 100644 index 000000000..25ee69489 --- /dev/null +++ b/arch/mips/netlogic/xlp/nlm_hal.c @@ -0,0 +1,508 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/mm.h> +#include <linux/delay.h> + +#include <asm/mipsregs.h> +#include <asm/time.h> + +#include <asm/netlogic/common.h> +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/xlp-hal/iomap.h> +#include <asm/netlogic/xlp-hal/xlp.h> +#include <asm/netlogic/xlp-hal/bridge.h> +#include <asm/netlogic/xlp-hal/pic.h> +#include <asm/netlogic/xlp-hal/sys.h> + +/* Main initialization */ +void nlm_node_init(int node) +{ + struct nlm_soc_info *nodep; + + nodep = nlm_get_node(node); + if (node == 0) + nodep->coremask = 1; /* node 0, boot cpu */ + nodep->sysbase = nlm_get_sys_regbase(node); + nodep->picbase = nlm_get_pic_regbase(node); + nodep->ebase = read_c0_ebase() & MIPS_EBASE_BASE; + if (cpu_is_xlp9xx()) + nodep->socbus = xlp9xx_get_socbus(node); + else + nodep->socbus = 0; + spin_lock_init(&nodep->piclock); +} + +static int xlp9xx_irq_to_irt(int irq) +{ + switch (irq) { + case PIC_GPIO_IRQ: + return 12; + case PIC_I2C_0_IRQ: + return 125; + case PIC_I2C_1_IRQ: + return 126; + case PIC_I2C_2_IRQ: + return 127; + case PIC_I2C_3_IRQ: + return 128; + case PIC_9XX_XHCI_0_IRQ: + return 114; + case PIC_9XX_XHCI_1_IRQ: + return 115; + case PIC_9XX_XHCI_2_IRQ: + return 116; + case PIC_UART_0_IRQ: + return 133; + case PIC_UART_1_IRQ: + return 134; + case PIC_SATA_IRQ: + return 143; + case PIC_NAND_IRQ: + return 151; + case PIC_SPI_IRQ: + return 152; + case PIC_MMC_IRQ: + return 153; + case PIC_PCIE_LINK_LEGACY_IRQ(0): + case PIC_PCIE_LINK_LEGACY_IRQ(1): + case PIC_PCIE_LINK_LEGACY_IRQ(2): + case PIC_PCIE_LINK_LEGACY_IRQ(3): + return 191 + irq - PIC_PCIE_LINK_LEGACY_IRQ_BASE; + } + return -1; +} + +static int xlp_irq_to_irt(int irq) +{ + uint64_t pcibase; + int devoff, irt; + + devoff = 0; + switch (irq) { + case PIC_UART_0_IRQ: + devoff = XLP_IO_UART0_OFFSET(0); + break; + case PIC_UART_1_IRQ: + devoff = XLP_IO_UART1_OFFSET(0); + break; + case PIC_MMC_IRQ: + devoff = XLP_IO_MMC_OFFSET(0); + break; + case PIC_I2C_0_IRQ: /* I2C will be fixed up */ + case PIC_I2C_1_IRQ: + case PIC_I2C_2_IRQ: + case PIC_I2C_3_IRQ: + if (cpu_is_xlpii()) + devoff = XLP2XX_IO_I2C_OFFSET(0); + else + devoff = XLP_IO_I2C0_OFFSET(0); + break; + case PIC_SATA_IRQ: + devoff = XLP_IO_SATA_OFFSET(0); + break; + case PIC_GPIO_IRQ: + devoff = XLP_IO_GPIO_OFFSET(0); + break; + case PIC_NAND_IRQ: + devoff = XLP_IO_NAND_OFFSET(0); + break; + case PIC_SPI_IRQ: + devoff = XLP_IO_SPI_OFFSET(0); + break; + default: + if (cpu_is_xlpii()) { + switch (irq) { + /* XLP2XX has three XHCI USB controller */ + case PIC_2XX_XHCI_0_IRQ: + devoff = XLP2XX_IO_USB_XHCI0_OFFSET(0); + break; + case PIC_2XX_XHCI_1_IRQ: + devoff = XLP2XX_IO_USB_XHCI1_OFFSET(0); + break; + case PIC_2XX_XHCI_2_IRQ: + devoff = XLP2XX_IO_USB_XHCI2_OFFSET(0); + break; + } + } else { + switch (irq) { + case PIC_EHCI_0_IRQ: + devoff = XLP_IO_USB_EHCI0_OFFSET(0); + break; + case PIC_EHCI_1_IRQ: + devoff = XLP_IO_USB_EHCI1_OFFSET(0); + break; + case PIC_OHCI_0_IRQ: + devoff = XLP_IO_USB_OHCI0_OFFSET(0); + break; + case PIC_OHCI_1_IRQ: + devoff = XLP_IO_USB_OHCI1_OFFSET(0); + break; + case PIC_OHCI_2_IRQ: + devoff = XLP_IO_USB_OHCI2_OFFSET(0); + break; + case PIC_OHCI_3_IRQ: + devoff = XLP_IO_USB_OHCI3_OFFSET(0); + break; + } + } + } + + if (devoff != 0) { + uint32_t val; + + pcibase = nlm_pcicfg_base(devoff); + val = nlm_read_reg(pcibase, XLP_PCI_IRTINFO_REG); + if (val == 0xffffffff) { + irt = -1; + } else { + irt = val & 0xffff; + /* HW weirdness, I2C IRT entry has to be fixed up */ + switch (irq) { + case PIC_I2C_1_IRQ: + irt = irt + 1; break; + case PIC_I2C_2_IRQ: + irt = irt + 2; break; + case PIC_I2C_3_IRQ: + irt = irt + 3; break; + } + } + } else if (irq >= PIC_PCIE_LINK_LEGACY_IRQ(0) && + irq <= PIC_PCIE_LINK_LEGACY_IRQ(3)) { + /* HW bug, PCI IRT entries are bad on early silicon, fix */ + irt = PIC_IRT_PCIE_LINK_INDEX(irq - + PIC_PCIE_LINK_LEGACY_IRQ_BASE); + } else { + irt = -1; + } + return irt; +} + +int nlm_irq_to_irt(int irq) +{ + /* return -2 for irqs without 1-1 mapping */ + if (irq >= PIC_PCIE_LINK_MSI_IRQ(0) && irq <= PIC_PCIE_LINK_MSI_IRQ(3)) + return -2; + if (irq >= PIC_PCIE_MSIX_IRQ(0) && irq <= PIC_PCIE_MSIX_IRQ(3)) + return -2; + + if (cpu_is_xlp9xx()) + return xlp9xx_irq_to_irt(irq); + else + return xlp_irq_to_irt(irq); +} + +static unsigned int nlm_xlp2_get_core_frequency(int node, int core) +{ + unsigned int pll_post_div, ctrl_val0, ctrl_val1, denom; + uint64_t num, sysbase, clockbase; + + if (cpu_is_xlp9xx()) { + clockbase = nlm_get_clock_regbase(node); + ctrl_val0 = nlm_read_sys_reg(clockbase, + SYS_9XX_CPU_PLL_CTRL0(core)); + ctrl_val1 = nlm_read_sys_reg(clockbase, + SYS_9XX_CPU_PLL_CTRL1(core)); + } else { + sysbase = nlm_get_node(node)->sysbase; + ctrl_val0 = nlm_read_sys_reg(sysbase, + SYS_CPU_PLL_CTRL0(core)); + ctrl_val1 = nlm_read_sys_reg(sysbase, + SYS_CPU_PLL_CTRL1(core)); + } + + /* Find PLL post divider value */ + switch ((ctrl_val0 >> 24) & 0x7) { + case 1: + pll_post_div = 2; + break; + case 3: + pll_post_div = 4; + break; + case 7: + pll_post_div = 8; + break; + case 6: + pll_post_div = 16; + break; + case 0: + default: + pll_post_div = 1; + break; + } + + num = 1000000ULL * (400 * 3 + 100 * (ctrl_val1 & 0x3f)); + denom = 3 * pll_post_div; + do_div(num, denom); + + return (unsigned int)num; +} + +static unsigned int nlm_xlp_get_core_frequency(int node, int core) +{ + unsigned int pll_divf, pll_divr, dfs_div, ext_div; + unsigned int rstval, dfsval, denom; + uint64_t num, sysbase; + + sysbase = nlm_get_node(node)->sysbase; + rstval = nlm_read_sys_reg(sysbase, SYS_POWER_ON_RESET_CFG); + dfsval = nlm_read_sys_reg(sysbase, SYS_CORE_DFS_DIV_VALUE); + pll_divf = ((rstval >> 10) & 0x7f) + 1; + pll_divr = ((rstval >> 8) & 0x3) + 1; + ext_div = ((rstval >> 30) & 0x3) + 1; + dfs_div = ((dfsval >> (core * 4)) & 0xf) + 1; + + num = 800000000ULL * pll_divf; + denom = 3 * pll_divr * ext_div * dfs_div; + do_div(num, denom); + + return (unsigned int)num; +} + +unsigned int nlm_get_core_frequency(int node, int core) +{ + if (cpu_is_xlpii()) + return nlm_xlp2_get_core_frequency(node, core); + else + return nlm_xlp_get_core_frequency(node, core); +} + +/* + * Calculate PIC frequency from PLL registers. + * freq_out = (ref_freq/2 * (6 + ctrl2[7:0]) + ctrl2[20:8]/2^13) / + * ((2^ctrl0[7:5]) * Table(ctrl0[26:24])) + */ +static unsigned int nlm_xlp2_get_pic_frequency(int node) +{ + u32 ctrl_val0, ctrl_val2, vco_post_div, pll_post_div, cpu_xlp9xx; + u32 mdiv, fdiv, pll_out_freq_den, reg_select, ref_div, pic_div; + u64 sysbase, pll_out_freq_num, ref_clk_select, clockbase, ref_clk; + + sysbase = nlm_get_node(node)->sysbase; + clockbase = nlm_get_clock_regbase(node); + cpu_xlp9xx = cpu_is_xlp9xx(); + + /* Find ref_clk_base */ + if (cpu_xlp9xx) + ref_clk_select = (nlm_read_sys_reg(sysbase, + SYS_9XX_POWER_ON_RESET_CFG) >> 18) & 0x3; + else + ref_clk_select = (nlm_read_sys_reg(sysbase, + SYS_POWER_ON_RESET_CFG) >> 18) & 0x3; + switch (ref_clk_select) { + case 0: + ref_clk = 200000000ULL; + ref_div = 3; + break; + case 1: + ref_clk = 100000000ULL; + ref_div = 1; + break; + case 2: + ref_clk = 125000000ULL; + ref_div = 1; + break; + case 3: + ref_clk = 400000000ULL; + ref_div = 3; + break; + } + + /* Find the clock source PLL device for PIC */ + if (cpu_xlp9xx) { + reg_select = nlm_read_sys_reg(clockbase, + SYS_9XX_CLK_DEV_SEL_REG) & 0x3; + switch (reg_select) { + case 0: + ctrl_val0 = nlm_read_sys_reg(clockbase, + SYS_9XX_PLL_CTRL0); + ctrl_val2 = nlm_read_sys_reg(clockbase, + SYS_9XX_PLL_CTRL2); + break; + case 1: + ctrl_val0 = nlm_read_sys_reg(clockbase, + SYS_9XX_PLL_CTRL0_DEVX(0)); + ctrl_val2 = nlm_read_sys_reg(clockbase, + SYS_9XX_PLL_CTRL2_DEVX(0)); + break; + case 2: + ctrl_val0 = nlm_read_sys_reg(clockbase, + SYS_9XX_PLL_CTRL0_DEVX(1)); + ctrl_val2 = nlm_read_sys_reg(clockbase, + SYS_9XX_PLL_CTRL2_DEVX(1)); + break; + case 3: + ctrl_val0 = nlm_read_sys_reg(clockbase, + SYS_9XX_PLL_CTRL0_DEVX(2)); + ctrl_val2 = nlm_read_sys_reg(clockbase, + SYS_9XX_PLL_CTRL2_DEVX(2)); + break; + } + } else { + reg_select = (nlm_read_sys_reg(sysbase, + SYS_CLK_DEV_SEL_REG) >> 22) & 0x3; + switch (reg_select) { + case 0: + ctrl_val0 = nlm_read_sys_reg(sysbase, + SYS_PLL_CTRL0); + ctrl_val2 = nlm_read_sys_reg(sysbase, + SYS_PLL_CTRL2); + break; + case 1: + ctrl_val0 = nlm_read_sys_reg(sysbase, + SYS_PLL_CTRL0_DEVX(0)); + ctrl_val2 = nlm_read_sys_reg(sysbase, + SYS_PLL_CTRL2_DEVX(0)); + break; + case 2: + ctrl_val0 = nlm_read_sys_reg(sysbase, + SYS_PLL_CTRL0_DEVX(1)); + ctrl_val2 = nlm_read_sys_reg(sysbase, + SYS_PLL_CTRL2_DEVX(1)); + break; + case 3: + ctrl_val0 = nlm_read_sys_reg(sysbase, + SYS_PLL_CTRL0_DEVX(2)); + ctrl_val2 = nlm_read_sys_reg(sysbase, + SYS_PLL_CTRL2_DEVX(2)); + break; + } + } + + vco_post_div = (ctrl_val0 >> 5) & 0x7; + pll_post_div = (ctrl_val0 >> 24) & 0x7; + mdiv = ctrl_val2 & 0xff; + fdiv = (ctrl_val2 >> 8) & 0x1fff; + + /* Find PLL post divider value */ + switch (pll_post_div) { + case 1: + pll_post_div = 2; + break; + case 3: + pll_post_div = 4; + break; + case 7: + pll_post_div = 8; + break; + case 6: + pll_post_div = 16; + break; + case 0: + default: + pll_post_div = 1; + break; + } + + fdiv = fdiv/(1 << 13); + pll_out_freq_num = ((ref_clk >> 1) * (6 + mdiv)) + fdiv; + pll_out_freq_den = (1 << vco_post_div) * pll_post_div * ref_div; + + if (pll_out_freq_den > 0) + do_div(pll_out_freq_num, pll_out_freq_den); + + /* PIC post divider, which happens after PLL */ + if (cpu_xlp9xx) + pic_div = nlm_read_sys_reg(clockbase, + SYS_9XX_CLK_DEV_DIV_REG) & 0x3; + else + pic_div = (nlm_read_sys_reg(sysbase, + SYS_CLK_DEV_DIV_REG) >> 22) & 0x3; + do_div(pll_out_freq_num, 1 << pic_div); + + return pll_out_freq_num; +} + +unsigned int nlm_get_pic_frequency(int node) +{ + if (cpu_is_xlpii()) + return nlm_xlp2_get_pic_frequency(node); + else + return 133333333; +} + +unsigned int nlm_get_cpu_frequency(void) +{ + return nlm_get_core_frequency(0, 0); +} + +/* + * Fills upto 8 pairs of entries containing the DRAM map of a node + * if node < 0, get dram map for all nodes + */ +int nlm_get_dram_map(int node, uint64_t *dram_map, int nentries) +{ + uint64_t bridgebase, base, lim; + uint32_t val; + unsigned int barreg, limreg, xlatreg; + int i, n, rv; + + /* Look only at mapping on Node 0, we don't handle crazy configs */ + bridgebase = nlm_get_bridge_regbase(0); + rv = 0; + for (i = 0; i < 8; i++) { + if (rv + 1 >= nentries) + break; + if (cpu_is_xlp9xx()) { + barreg = BRIDGE_9XX_DRAM_BAR(i); + limreg = BRIDGE_9XX_DRAM_LIMIT(i); + xlatreg = BRIDGE_9XX_DRAM_NODE_TRANSLN(i); + } else { + barreg = BRIDGE_DRAM_BAR(i); + limreg = BRIDGE_DRAM_LIMIT(i); + xlatreg = BRIDGE_DRAM_NODE_TRANSLN(i); + } + if (node >= 0) { + /* node specified, get node mapping of BAR */ + val = nlm_read_bridge_reg(bridgebase, xlatreg); + n = (val >> 1) & 0x3; + if (n != node) + continue; + } + val = nlm_read_bridge_reg(bridgebase, barreg); + val = (val >> 12) & 0xfffff; + base = (uint64_t) val << 20; + val = nlm_read_bridge_reg(bridgebase, limreg); + val = (val >> 12) & 0xfffff; + if (val == 0) /* BAR not used */ + continue; + lim = ((uint64_t)val + 1) << 20; + dram_map[rv] = base; + dram_map[rv + 1] = lim; + rv += 2; + } + return rv; +} diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c new file mode 100644 index 000000000..9adc0c1b4 --- /dev/null +++ b/arch/mips/netlogic/xlp/setup.c @@ -0,0 +1,179 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/kernel.h> +#include <linux/of_fdt.h> +#include <linux/memblock.h> + +#include <asm/idle.h> +#include <asm/reboot.h> +#include <asm/time.h> +#include <asm/bootinfo.h> + +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/common.h> + +#include <asm/netlogic/xlp-hal/iomap.h> +#include <asm/netlogic/xlp-hal/xlp.h> +#include <asm/netlogic/xlp-hal/sys.h> + +uint64_t nlm_io_base; +struct nlm_soc_info nlm_nodes[NLM_NR_NODES]; +cpumask_t nlm_cpumask = CPU_MASK_CPU0; +unsigned int nlm_threads_per_core; + +static void nlm_linux_exit(void) +{ + uint64_t sysbase = nlm_get_node(0)->sysbase; + + if (cpu_is_xlp9xx()) + nlm_write_sys_reg(sysbase, SYS_9XX_CHIP_RESET, 1); + else + nlm_write_sys_reg(sysbase, SYS_CHIP_RESET, 1); + for ( ; ; ) + cpu_wait(); +} + +static void nlm_fixup_mem(void) +{ + const int pref_backup = 512; + struct memblock_region *mem; + + for_each_mem_region(mem) { + memblock_remove(mem->base + mem->size - pref_backup, + pref_backup); + } +} + +static void __init xlp_init_mem_from_bars(void) +{ + uint64_t map[16]; + int i, n; + + n = nlm_get_dram_map(-1, map, ARRAY_SIZE(map)); /* -1 : all nodes */ + for (i = 0; i < n; i += 2) { + /* exclude 0x1000_0000-0x2000_0000, u-boot device */ + if (map[i] <= 0x10000000 && map[i+1] > 0x10000000) + map[i+1] = 0x10000000; + if (map[i] > 0x10000000 && map[i] < 0x20000000) + map[i] = 0x20000000; + + memblock_add(map[i], map[i+1] - map[i]); + } +} + +void __init plat_mem_setup(void) +{ +#ifdef CONFIG_SMP + nlm_wakeup_secondary_cpus(); + + /* update TLB size after waking up threads */ + current_cpu_data.tlbsize = ((read_c0_config6() >> 16) & 0xffff) + 1; + + register_smp_ops(&nlm_smp_ops); +#endif + _machine_restart = (void (*)(char *))nlm_linux_exit; + _machine_halt = nlm_linux_exit; + pm_power_off = nlm_linux_exit; + + /* memory and bootargs from DT */ + xlp_early_init_devtree(); + + if (memblock_end_of_DRAM() == 0) { + pr_info("Using DRAM BARs for memory map.\n"); + xlp_init_mem_from_bars(); + } + /* Calculate and setup wired entries for mapped kernel */ + nlm_fixup_mem(); +} + +const char *get_system_type(void) +{ + switch (read_c0_prid() & PRID_IMP_MASK) { + case PRID_IMP_NETLOGIC_XLP9XX: + case PRID_IMP_NETLOGIC_XLP5XX: + case PRID_IMP_NETLOGIC_XLP2XX: + return "Broadcom XLPII Series"; + default: + return "Netlogic XLP Series"; + } +} + +void __init prom_free_prom_memory(void) +{ + /* Nothing yet */ +} + +void xlp_mmu_init(void) +{ + u32 conf4; + + if (cpu_is_xlpii()) { + /* XLPII series has extended pagesize in config 4 */ + conf4 = read_c0_config4() & ~0x1f00u; + write_c0_config4(conf4 | ((PAGE_SHIFT - 10) / 2 << 8)); + } else { + /* enable extended TLB and Large Fixed TLB */ + write_c0_config6(read_c0_config6() | 0x24); + + /* set page mask of extended Fixed TLB in config7 */ + write_c0_config7(PM_DEFAULT_MASK >> + (13 + (ffz(PM_DEFAULT_MASK >> 13) / 2))); + } +} + +void nlm_percpu_init(int hwcpuid) +{ +} + +void __init prom_init(void) +{ + void *reset_vec; + + nlm_io_base = CKSEG1ADDR(XLP_DEFAULT_IO_BASE); + nlm_init_boot_cpu(); + xlp_mmu_init(); + nlm_node_init(0); + xlp_dt_init((void *)(long)fw_arg0); + + /* Update reset entry point with CPU init code */ + reset_vec = (void *)CKSEG1ADDR(RESET_VEC_PHYS); + memset(reset_vec, 0, RESET_VEC_SIZE); + memcpy(reset_vec, (void *)nlm_reset_entry, + (nlm_reset_entry_end - nlm_reset_entry)); + +#ifdef CONFIG_SMP + cpumask_setall(&nlm_cpumask); +#endif +} diff --git a/arch/mips/netlogic/xlp/usb-init-xlp2.c b/arch/mips/netlogic/xlp/usb-init-xlp2.c new file mode 100644 index 000000000..2524939a5 --- /dev/null +++ b/arch/mips/netlogic/xlp/usb-init-xlp2.c @@ -0,0 +1,288 @@ +/* + * Copyright (c) 2003-2013 Broadcom Corporation + * All Rights Reserved + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the Broadcom + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/dma-mapping.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/pci_ids.h> +#include <linux/platform_device.h> +#include <linux/irq.h> + +#include <asm/netlogic/common.h> +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/xlp-hal/iomap.h> +#include <asm/netlogic/xlp-hal/xlp.h> + +#define XLPII_USB3_CTL_0 0xc0 +#define XLPII_VAUXRST BIT(0) +#define XLPII_VCCRST BIT(1) +#define XLPII_NUM2PORT 9 +#define XLPII_NUM3PORT 13 +#define XLPII_RTUNEREQ BIT(20) +#define XLPII_MS_CSYSREQ BIT(21) +#define XLPII_XS_CSYSREQ BIT(22) +#define XLPII_RETENABLEN BIT(23) +#define XLPII_TX2RX BIT(24) +#define XLPII_XHCIREV BIT(25) +#define XLPII_ECCDIS BIT(26) + +#define XLPII_USB3_INT_REG 0xc2 +#define XLPII_USB3_INT_MASK 0xc3 + +#define XLPII_USB_PHY_TEST 0xc6 +#define XLPII_PRESET BIT(0) +#define XLPII_ATERESET BIT(1) +#define XLPII_LOOPEN BIT(2) +#define XLPII_TESTPDHSP BIT(3) +#define XLPII_TESTPDSSP BIT(4) +#define XLPII_TESTBURNIN BIT(5) + +#define XLPII_USB_PHY_LOS_LV 0xc9 +#define XLPII_LOSLEV 0 +#define XLPII_LOSBIAS 5 +#define XLPII_SQRXTX 8 +#define XLPII_TXBOOST 11 +#define XLPII_RSLKSEL 16 +#define XLPII_FSEL 20 + +#define XLPII_USB_RFCLK_REG 0xcc +#define XLPII_VVLD 30 + +#define nlm_read_usb_reg(b, r) nlm_read_reg(b, r) +#define nlm_write_usb_reg(b, r, v) nlm_write_reg(b, r, v) + +#define nlm_xlpii_get_usb_pcibase(node, inst) \ + nlm_pcicfg_base(cpu_is_xlp9xx() ? \ + XLP9XX_IO_USB_OFFSET(node, inst) : \ + XLP2XX_IO_USB_OFFSET(node, inst)) +#define nlm_xlpii_get_usb_regbase(node, inst) \ + (nlm_xlpii_get_usb_pcibase(node, inst) + XLP_IO_PCI_HDRSZ) + +static void xlp2xx_usb_ack(struct irq_data *data) +{ + u64 port_addr; + + switch (data->irq) { + case PIC_2XX_XHCI_0_IRQ: + port_addr = nlm_xlpii_get_usb_regbase(0, 1); + break; + case PIC_2XX_XHCI_1_IRQ: + port_addr = nlm_xlpii_get_usb_regbase(0, 2); + break; + case PIC_2XX_XHCI_2_IRQ: + port_addr = nlm_xlpii_get_usb_regbase(0, 3); + break; + default: + pr_err("No matching USB irq!\n"); + return; + } + nlm_write_usb_reg(port_addr, XLPII_USB3_INT_REG, 0xffffffff); +} + +static void xlp9xx_usb_ack(struct irq_data *data) +{ + u64 port_addr; + int node, irq; + + /* Find the node and irq on the node */ + irq = data->irq % NLM_IRQS_PER_NODE; + node = data->irq / NLM_IRQS_PER_NODE; + + switch (irq) { + case PIC_9XX_XHCI_0_IRQ: + port_addr = nlm_xlpii_get_usb_regbase(node, 1); + break; + case PIC_9XX_XHCI_1_IRQ: + port_addr = nlm_xlpii_get_usb_regbase(node, 2); + break; + case PIC_9XX_XHCI_2_IRQ: + port_addr = nlm_xlpii_get_usb_regbase(node, 3); + break; + default: + pr_err("No matching USB irq %d node %d!\n", irq, node); + return; + } + nlm_write_usb_reg(port_addr, XLPII_USB3_INT_REG, 0xffffffff); +} + +static void nlm_xlpii_usb_hw_reset(int node, int port) +{ + u64 port_addr, xhci_base, pci_base; + void __iomem *corebase; + u32 val; + + port_addr = nlm_xlpii_get_usb_regbase(node, port); + + /* Set frequency */ + val = nlm_read_usb_reg(port_addr, XLPII_USB_PHY_LOS_LV); + val &= ~(0x3f << XLPII_FSEL); + val |= (0x27 << XLPII_FSEL); + nlm_write_usb_reg(port_addr, XLPII_USB_PHY_LOS_LV, val); + + val = nlm_read_usb_reg(port_addr, XLPII_USB_RFCLK_REG); + val |= (1 << XLPII_VVLD); + nlm_write_usb_reg(port_addr, XLPII_USB_RFCLK_REG, val); + + /* PHY reset */ + val = nlm_read_usb_reg(port_addr, XLPII_USB_PHY_TEST); + val &= (XLPII_ATERESET | XLPII_LOOPEN | XLPII_TESTPDHSP + | XLPII_TESTPDSSP | XLPII_TESTBURNIN); + nlm_write_usb_reg(port_addr, XLPII_USB_PHY_TEST, val); + + /* Setup control register */ + val = XLPII_VAUXRST | XLPII_VCCRST | (1 << XLPII_NUM2PORT) + | (1 << XLPII_NUM3PORT) | XLPII_MS_CSYSREQ | XLPII_XS_CSYSREQ + | XLPII_RETENABLEN | XLPII_XHCIREV; + nlm_write_usb_reg(port_addr, XLPII_USB3_CTL_0, val); + + /* Enable interrupts */ + nlm_write_usb_reg(port_addr, XLPII_USB3_INT_MASK, 0x00000001); + + /* Clear all interrupts */ + nlm_write_usb_reg(port_addr, XLPII_USB3_INT_REG, 0xffffffff); + + udelay(2000); + + /* XHCI configuration at PCI mem */ + pci_base = nlm_xlpii_get_usb_pcibase(node, port); + xhci_base = nlm_read_usb_reg(pci_base, 0x4) & ~0xf; + corebase = ioremap(xhci_base, 0x10000); + if (!corebase) + return; + + writel(0x240002, corebase + 0xc2c0); + /* GCTL 0xc110 */ + val = readl(corebase + 0xc110); + val &= ~(0x3 << 12); + val |= (1 << 12); + writel(val, corebase + 0xc110); + udelay(100); + + /* PHYCFG 0xc200 */ + val = readl(corebase + 0xc200); + val &= ~(1 << 6); + writel(val, corebase + 0xc200); + udelay(100); + + /* PIPECTL 0xc2c0 */ + val = readl(corebase + 0xc2c0); + val &= ~(1 << 17); + writel(val, corebase + 0xc2c0); + + iounmap(corebase); +} + +static int __init nlm_platform_xlpii_usb_init(void) +{ + int node; + + if (!cpu_is_xlpii()) + return 0; + + if (!cpu_is_xlp9xx()) { + /* XLP 2XX single node */ + pr_info("Initializing 2XX USB Interface\n"); + nlm_xlpii_usb_hw_reset(0, 1); + nlm_xlpii_usb_hw_reset(0, 2); + nlm_xlpii_usb_hw_reset(0, 3); + nlm_set_pic_extra_ack(0, PIC_2XX_XHCI_0_IRQ, xlp2xx_usb_ack); + nlm_set_pic_extra_ack(0, PIC_2XX_XHCI_1_IRQ, xlp2xx_usb_ack); + nlm_set_pic_extra_ack(0, PIC_2XX_XHCI_2_IRQ, xlp2xx_usb_ack); + return 0; + } + + /* XLP 9XX, multi-node */ + pr_info("Initializing 9XX/5XX USB Interface\n"); + for (node = 0; node < NLM_NR_NODES; node++) { + if (!nlm_node_present(node)) + continue; + nlm_xlpii_usb_hw_reset(node, 1); + nlm_xlpii_usb_hw_reset(node, 2); + nlm_xlpii_usb_hw_reset(node, 3); + nlm_set_pic_extra_ack(node, PIC_9XX_XHCI_0_IRQ, xlp9xx_usb_ack); + nlm_set_pic_extra_ack(node, PIC_9XX_XHCI_1_IRQ, xlp9xx_usb_ack); + nlm_set_pic_extra_ack(node, PIC_9XX_XHCI_2_IRQ, xlp9xx_usb_ack); + } + return 0; +} + +arch_initcall(nlm_platform_xlpii_usb_init); + +static u64 xlp_usb_dmamask = ~(u32)0; + +/* Fixup the IRQ for USB devices which is exist on XLP9XX SOC PCIE bus */ +static void nlm_xlp9xx_usb_fixup_final(struct pci_dev *dev) +{ + int node; + + node = xlp_socdev_to_node(dev); + dev->dev.dma_mask = &xlp_usb_dmamask; + dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + switch (dev->devfn) { + case 0x21: + dev->irq = nlm_irq_to_xirq(node, PIC_9XX_XHCI_0_IRQ); + break; + case 0x22: + dev->irq = nlm_irq_to_xirq(node, PIC_9XX_XHCI_1_IRQ); + break; + case 0x23: + dev->irq = nlm_irq_to_xirq(node, PIC_9XX_XHCI_2_IRQ); + break; + } +} + +/* Fixup the IRQ for USB devices which is exist on XLP2XX SOC PCIE bus */ +static void nlm_xlp2xx_usb_fixup_final(struct pci_dev *dev) +{ + dev->dev.dma_mask = &xlp_usb_dmamask; + dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + switch (dev->devfn) { + case 0x21: + dev->irq = PIC_2XX_XHCI_0_IRQ; + break; + case 0x22: + dev->irq = PIC_2XX_XHCI_1_IRQ; + break; + case 0x23: + dev->irq = PIC_2XX_XHCI_2_IRQ; + break; + } +} + +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, PCI_DEVICE_ID_XLP9XX_XHCI, + nlm_xlp9xx_usb_fixup_final); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_NETLOGIC, PCI_DEVICE_ID_NLM_XHCI, + nlm_xlp2xx_usb_fixup_final); diff --git a/arch/mips/netlogic/xlp/usb-init.c b/arch/mips/netlogic/xlp/usb-init.c new file mode 100644 index 000000000..f8117985f --- /dev/null +++ b/arch/mips/netlogic/xlp/usb-init.c @@ -0,0 +1,149 @@ +/* + * Copyright (c) 2003-2012 Broadcom Corporation + * All Rights Reserved + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the Broadcom + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/dma-mapping.h> +#include <linux/kernel.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/pci.h> +#include <linux/platform_device.h> + +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/xlp-hal/iomap.h> +#include <asm/netlogic/xlp-hal/xlp.h> + +/* + * USB glue logic registers, used only during initialization + */ +#define USB_CTL_0 0x01 +#define USB_PHY_0 0x0A +#define USB_PHY_RESET 0x01 +#define USB_PHY_PORT_RESET_0 0x10 +#define USB_PHY_PORT_RESET_1 0x20 +#define USB_CONTROLLER_RESET 0x01 +#define USB_INT_STATUS 0x0E +#define USB_INT_EN 0x0F +#define USB_PHY_INTERRUPT_EN 0x01 +#define USB_OHCI_INTERRUPT_EN 0x02 +#define USB_OHCI_INTERRUPT1_EN 0x04 +#define USB_OHCI_INTERRUPT2_EN 0x08 +#define USB_CTRL_INTERRUPT_EN 0x10 + +#define nlm_read_usb_reg(b, r) nlm_read_reg(b, r) +#define nlm_write_usb_reg(b, r, v) nlm_write_reg(b, r, v) +#define nlm_get_usb_pcibase(node, inst) \ + nlm_pcicfg_base(XLP_IO_USB_OFFSET(node, inst)) +#define nlm_get_usb_regbase(node, inst) \ + (nlm_get_usb_pcibase(node, inst) + XLP_IO_PCI_HDRSZ) + +static void nlm_usb_intr_en(int node, int port) +{ + uint32_t val; + uint64_t port_addr; + + port_addr = nlm_get_usb_regbase(node, port); + val = nlm_read_usb_reg(port_addr, USB_INT_EN); + val = USB_CTRL_INTERRUPT_EN | USB_OHCI_INTERRUPT_EN | + USB_OHCI_INTERRUPT1_EN | USB_OHCI_INTERRUPT2_EN; + nlm_write_usb_reg(port_addr, USB_INT_EN, val); +} + +static void nlm_usb_hw_reset(int node, int port) +{ + uint64_t port_addr; + uint32_t val; + + /* reset USB phy */ + port_addr = nlm_get_usb_regbase(node, port); + val = nlm_read_usb_reg(port_addr, USB_PHY_0); + val &= ~(USB_PHY_RESET | USB_PHY_PORT_RESET_0 | USB_PHY_PORT_RESET_1); + nlm_write_usb_reg(port_addr, USB_PHY_0, val); + + mdelay(100); + val = nlm_read_usb_reg(port_addr, USB_CTL_0); + val &= ~(USB_CONTROLLER_RESET); + val |= 0x4; + nlm_write_usb_reg(port_addr, USB_CTL_0, val); +} + +static int __init nlm_platform_usb_init(void) +{ + if (cpu_is_xlpii()) + return 0; + + pr_info("Initializing USB Interface\n"); + nlm_usb_hw_reset(0, 0); + nlm_usb_hw_reset(0, 3); + + /* Enable PHY interrupts */ + nlm_usb_intr_en(0, 0); + nlm_usb_intr_en(0, 3); + + return 0; +} + +arch_initcall(nlm_platform_usb_init); + +static u64 xlp_usb_dmamask = ~(u32)0; + +/* Fixup the IRQ for USB devices which is exist on XLP SOC PCIE bus */ +static void nlm_usb_fixup_final(struct pci_dev *dev) +{ + dev->dev.dma_mask = &xlp_usb_dmamask; + dev->dev.coherent_dma_mask = DMA_BIT_MASK(32); + switch (dev->devfn) { + case 0x10: + dev->irq = PIC_EHCI_0_IRQ; + break; + case 0x11: + dev->irq = PIC_OHCI_0_IRQ; + break; + case 0x12: + dev->irq = PIC_OHCI_1_IRQ; + break; + case 0x13: + dev->irq = PIC_EHCI_1_IRQ; + break; + case 0x14: + dev->irq = PIC_OHCI_2_IRQ; + break; + case 0x15: + dev->irq = PIC_OHCI_3_IRQ; + break; + } +} +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_NETLOGIC, PCI_DEVICE_ID_NLM_EHCI, + nlm_usb_fixup_final); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_NETLOGIC, PCI_DEVICE_ID_NLM_OHCI, + nlm_usb_fixup_final); diff --git a/arch/mips/netlogic/xlp/wakeup.c b/arch/mips/netlogic/xlp/wakeup.c new file mode 100644 index 000000000..d61004dd7 --- /dev/null +++ b/arch/mips/netlogic/xlp/wakeup.c @@ -0,0 +1,212 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/kernel.h> +#include <linux/threads.h> + +#include <asm/asm.h> +#include <asm/asm-offsets.h> +#include <asm/mipsregs.h> +#include <asm/addrspace.h> +#include <asm/string.h> + +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/common.h> +#include <asm/netlogic/mips-extns.h> + +#include <asm/netlogic/xlp-hal/iomap.h> +#include <asm/netlogic/xlp-hal/xlp.h> +#include <asm/netlogic/xlp-hal/pic.h> +#include <asm/netlogic/xlp-hal/sys.h> + +static int xlp_wakeup_core(uint64_t sysbase, int node, int core) +{ + uint32_t coremask, value; + int count, resetreg; + + coremask = (1 << core); + + /* Enable CPU clock in case of 8xx/3xx */ + if (!cpu_is_xlpii()) { + value = nlm_read_sys_reg(sysbase, SYS_CORE_DFS_DIS_CTRL); + value &= ~coremask; + nlm_write_sys_reg(sysbase, SYS_CORE_DFS_DIS_CTRL, value); + } + + /* On 9XX, mark coherent first */ + if (cpu_is_xlp9xx()) { + value = nlm_read_sys_reg(sysbase, SYS_9XX_CPU_NONCOHERENT_MODE); + value &= ~coremask; + nlm_write_sys_reg(sysbase, SYS_9XX_CPU_NONCOHERENT_MODE, value); + } + + /* Remove CPU Reset */ + resetreg = cpu_is_xlp9xx() ? SYS_9XX_CPU_RESET : SYS_CPU_RESET; + value = nlm_read_sys_reg(sysbase, resetreg); + value &= ~coremask; + nlm_write_sys_reg(sysbase, resetreg, value); + + /* We are done on 9XX */ + if (cpu_is_xlp9xx()) + return 1; + + /* Poll for CPU to mark itself coherent on other type of XLP */ + count = 100000; + do { + value = nlm_read_sys_reg(sysbase, SYS_CPU_NONCOHERENT_MODE); + } while ((value & coremask) != 0 && --count > 0); + + return count != 0; +} + +static int wait_for_cpus(int cpu, int bootcpu) +{ + volatile uint32_t *cpu_ready = nlm_get_boot_data(BOOT_CPU_READY); + int i, count, notready; + + count = 0x800000; + do { + notready = nlm_threads_per_core; + for (i = 0; i < nlm_threads_per_core; i++) + if (cpu_ready[cpu + i] || (cpu + i) == bootcpu) + --notready; + } while (notready != 0 && --count > 0); + + return count != 0; +} + +static void xlp_enable_secondary_cores(const cpumask_t *wakeup_mask) +{ + struct nlm_soc_info *nodep; + uint64_t syspcibase, fusebase; + uint32_t syscoremask, mask, fusemask; + int core, n, cpu, ncores; + + for (n = 0; n < NLM_NR_NODES; n++) { + if (n != 0) { + /* check if node exists and is online */ + if (cpu_is_xlp9xx()) { + int b = xlp9xx_get_socbus(n); + pr_info("Node %d SoC PCI bus %d.\n", n, b); + if (b == 0) + break; + } else { + syspcibase = nlm_get_sys_pcibase(n); + if (nlm_read_reg(syspcibase, 0) == 0xffffffff) + break; + } + nlm_node_init(n); + } + + /* read cores in reset from SYS */ + nodep = nlm_get_node(n); + + if (cpu_is_xlp9xx()) { + fusebase = nlm_get_fuse_regbase(n); + fusemask = nlm_read_reg(fusebase, FUSE_9XX_DEVCFG6); + switch (read_c0_prid() & PRID_IMP_MASK) { + case PRID_IMP_NETLOGIC_XLP5XX: + mask = 0xff; + break; + case PRID_IMP_NETLOGIC_XLP9XX: + default: + mask = 0xfffff; + break; + } + } else { + fusemask = nlm_read_sys_reg(nodep->sysbase, + SYS_EFUSE_DEVICE_CFG_STATUS0); + switch (read_c0_prid() & PRID_IMP_MASK) { + case PRID_IMP_NETLOGIC_XLP3XX: + mask = 0xf; + break; + case PRID_IMP_NETLOGIC_XLP2XX: + mask = 0x3; + break; + case PRID_IMP_NETLOGIC_XLP8XX: + default: + mask = 0xff; + break; + } + } + + /* + * Fused out cores are set in the fusemask, and the remaining + * cores are renumbered to range 0 .. nactive-1 + */ + syscoremask = (1 << hweight32(~fusemask & mask)) - 1; + + pr_info("Node %d - SYS/FUSE coremask %x\n", n, syscoremask); + ncores = nlm_cores_per_node(); + for (core = 0; core < ncores; core++) { + /* we will be on node 0 core 0 */ + if (n == 0 && core == 0) + continue; + + /* see if the core exists */ + if ((syscoremask & (1 << core)) == 0) + continue; + + /* see if at least the first hw thread is enabled */ + cpu = (n * ncores + core) * NLM_THREADS_PER_CORE; + if (!cpumask_test_cpu(cpu, wakeup_mask)) + continue; + + /* wake up the core */ + if (!xlp_wakeup_core(nodep->sysbase, n, core)) + continue; + + /* core is up */ + nodep->coremask |= 1u << core; + + /* spin until the hw threads sets their ready */ + if (!wait_for_cpus(cpu, 0)) + pr_err("Node %d : timeout core %d\n", n, core); + } + } +} + +void xlp_wakeup_secondary_cpus(void) +{ + /* + * In case of u-boot, the secondaries are in reset + * first wakeup core 0 threads + */ + xlp_boot_core0_siblings(); + if (!wait_for_cpus(0, 0)) + pr_err("Node 0 : timeout core 0\n"); + + /* now get other cores out of reset */ + xlp_enable_secondary_cores(&nlm_cpumask); +} diff --git a/arch/mips/netlogic/xlr/Makefile b/arch/mips/netlogic/xlr/Makefile new file mode 100644 index 000000000..7c83100e5 --- /dev/null +++ b/arch/mips/netlogic/xlr/Makefile @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only +obj-y += fmn.o fmn-config.o setup.o platform.o platform-flash.o +obj-$(CONFIG_SMP) += wakeup.o diff --git a/arch/mips/netlogic/xlr/fmn-config.c b/arch/mips/netlogic/xlr/fmn-config.c new file mode 100644 index 000000000..c7622c6e5 --- /dev/null +++ b/arch/mips/netlogic/xlr/fmn-config.c @@ -0,0 +1,293 @@ +/* + * Copyright (c) 2003-2012 Broadcom Corporation + * All Rights Reserved + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the Broadcom + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <asm/cpu-info.h> +#include <linux/irq.h> +#include <linux/interrupt.h> + +#include <asm/cpu.h> +#include <asm/mipsregs.h> +#include <asm/netlogic/xlr/fmn.h> +#include <asm/netlogic/xlr/xlr.h> +#include <asm/netlogic/common.h> +#include <asm/netlogic/haldefs.h> + +struct xlr_board_fmn_config xlr_board_fmn_config; + +static void __maybe_unused print_credit_config(struct xlr_fmn_info *fmn_info) +{ + int bkt; + + pr_info("Bucket size :\n"); + pr_info("Station\t: Size\n"); + for (bkt = 0; bkt < 16; bkt++) + pr_info(" %d %d %d %d %d %d %d %d\n", + xlr_board_fmn_config.bucket_size[(bkt * 8) + 0], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 1], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 2], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 3], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 4], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 5], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 6], + xlr_board_fmn_config.bucket_size[(bkt * 8) + 7]); + pr_info("\n"); + + pr_info("Credits distribution :\n"); + pr_info("Station\t: Size\n"); + for (bkt = 0; bkt < 16; bkt++) + pr_info(" %d %d %d %d %d %d %d %d\n", + fmn_info->credit_config[(bkt * 8) + 0], + fmn_info->credit_config[(bkt * 8) + 1], + fmn_info->credit_config[(bkt * 8) + 2], + fmn_info->credit_config[(bkt * 8) + 3], + fmn_info->credit_config[(bkt * 8) + 4], + fmn_info->credit_config[(bkt * 8) + 5], + fmn_info->credit_config[(bkt * 8) + 6], + fmn_info->credit_config[(bkt * 8) + 7]); + pr_info("\n"); +} + +static void check_credit_distribution(void) +{ + struct xlr_board_fmn_config *cfg = &xlr_board_fmn_config; + int bkt, n, total_credits, ncores; + + ncores = hweight32(nlm_current_node()->coremask); + for (bkt = 0; bkt < 128; bkt++) { + total_credits = 0; + for (n = 0; n < ncores; n++) + total_credits += cfg->cpu[n].credit_config[bkt]; + total_credits += cfg->gmac[0].credit_config[bkt]; + total_credits += cfg->gmac[1].credit_config[bkt]; + total_credits += cfg->dma.credit_config[bkt]; + total_credits += cfg->cmp.credit_config[bkt]; + total_credits += cfg->sae.credit_config[bkt]; + total_credits += cfg->xgmac[0].credit_config[bkt]; + total_credits += cfg->xgmac[1].credit_config[bkt]; + if (total_credits > cfg->bucket_size[bkt]) + pr_err("ERROR: Bucket %d: credits (%d) > size (%d)\n", + bkt, total_credits, cfg->bucket_size[bkt]); + } + pr_info("Credit distribution complete.\n"); +} + +/** + * Configure bucket size and credits for a device. 'size' is the size of + * the buckets for the device. This size is distributed among all the CPUs + * so that all of them can send messages to the device. + * + * The device is also given 'cpu_credits' to send messages to the CPUs + * + * @dev_info: FMN information structure for each devices + * @start_stn_id: Starting station id of dev_info + * @end_stn_id: End station id of dev_info + * @num_buckets: Total number of buckets for den_info + * @cpu_credits: Allowed credits to cpu for each devices pointing by dev_info + * @size: Size of the each buckets in the device station + */ +static void setup_fmn_cc(struct xlr_fmn_info *dev_info, int start_stn_id, + int end_stn_id, int num_buckets, int cpu_credits, int size) +{ + int i, j, num_core, n, credits_per_cpu; + struct xlr_fmn_info *cpu = xlr_board_fmn_config.cpu; + + num_core = hweight32(nlm_current_node()->coremask); + dev_info->num_buckets = num_buckets; + dev_info->start_stn_id = start_stn_id; + dev_info->end_stn_id = end_stn_id; + + n = num_core; + if (num_core == 3) + n = 4; + + for (i = start_stn_id; i <= end_stn_id; i++) { + xlr_board_fmn_config.bucket_size[i] = size; + + /* Dividing device credits equally to cpus */ + credits_per_cpu = size / n; + for (j = 0; j < num_core; j++) + cpu[j].credit_config[i] = credits_per_cpu; + + /* credits left to distribute */ + credits_per_cpu = size - (credits_per_cpu * num_core); + + /* distribute the remaining credits (if any), among cores */ + for (j = 0; (j < num_core) && (credits_per_cpu >= 4); j++) { + cpu[j].credit_config[i] += 4; + credits_per_cpu -= 4; + } + } + + /* Distributing cpu per bucket credits to devices */ + for (i = 0; i < num_core; i++) { + for (j = 0; j < FMN_CORE_NBUCKETS; j++) + dev_info->credit_config[(i * 8) + j] = cpu_credits; + } +} + +/* + * Each core has 256 slots and 8 buckets, + * Configure the 8 buckets each with 32 slots + */ +static void setup_cpu_fmninfo(struct xlr_fmn_info *cpu, int num_core) +{ + int i, j; + + for (i = 0; i < num_core; i++) { + cpu[i].start_stn_id = (8 * i); + cpu[i].end_stn_id = (8 * i + 8); + + for (j = cpu[i].start_stn_id; j < cpu[i].end_stn_id; j++) + xlr_board_fmn_config.bucket_size[j] = 32; + } +} + +/** + * Setup the FMN details for each devices according to the device available + * in each variant of XLR/XLS processor + */ +void xlr_board_info_setup(void) +{ + struct xlr_fmn_info *cpu = xlr_board_fmn_config.cpu; + struct xlr_fmn_info *gmac = xlr_board_fmn_config.gmac; + struct xlr_fmn_info *xgmac = xlr_board_fmn_config.xgmac; + struct xlr_fmn_info *dma = &xlr_board_fmn_config.dma; + struct xlr_fmn_info *cmp = &xlr_board_fmn_config.cmp; + struct xlr_fmn_info *sae = &xlr_board_fmn_config.sae; + int processor_id, num_core; + + num_core = hweight32(nlm_current_node()->coremask); + processor_id = read_c0_prid() & PRID_IMP_MASK; + + setup_cpu_fmninfo(cpu, num_core); + switch (processor_id) { + case PRID_IMP_NETLOGIC_XLS104: + case PRID_IMP_NETLOGIC_XLS108: + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 16, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 8, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 8, 128); + break; + + case PRID_IMP_NETLOGIC_XLS204: + case PRID_IMP_NETLOGIC_XLS208: + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 16, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 8, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 8, 128); + break; + + case PRID_IMP_NETLOGIC_XLS404: + case PRID_IMP_NETLOGIC_XLS408: + case PRID_IMP_NETLOGIC_XLS404B: + case PRID_IMP_NETLOGIC_XLS408B: + case PRID_IMP_NETLOGIC_XLS416B: + case PRID_IMP_NETLOGIC_XLS608B: + case PRID_IMP_NETLOGIC_XLS616B: + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 8, 32); + setup_fmn_cc(&gmac[1], FMN_STNID_GMAC1_FR_0, + FMN_STNID_GMAC1_TX3, 8, 8, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 4, 64); + setup_fmn_cc(cmp, FMN_STNID_CMP_0, + FMN_STNID_CMP_3, 4, 4, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 8, 128); + break; + + case PRID_IMP_NETLOGIC_XLS412B: + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 8, 32); + setup_fmn_cc(&gmac[1], FMN_STNID_GMAC1_FR_0, + FMN_STNID_GMAC1_TX3, 8, 8, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 4, 64); + setup_fmn_cc(cmp, FMN_STNID_CMP_0, + FMN_STNID_CMP_3, 4, 4, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 8, 128); + break; + + case PRID_IMP_NETLOGIC_XLR308: + case PRID_IMP_NETLOGIC_XLR308C: + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 16, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 8, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 4, 128); + break; + + case PRID_IMP_NETLOGIC_XLR532: + case PRID_IMP_NETLOGIC_XLR532C: + case PRID_IMP_NETLOGIC_XLR516C: + case PRID_IMP_NETLOGIC_XLR508C: + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 16, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 8, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 4, 128); + break; + + case PRID_IMP_NETLOGIC_XLR732: + case PRID_IMP_NETLOGIC_XLR716: + setup_fmn_cc(&xgmac[0], FMN_STNID_XMAC0_00_TX, + FMN_STNID_XMAC0_15_TX, 8, 0, 32); + setup_fmn_cc(&xgmac[1], FMN_STNID_XMAC1_00_TX, + FMN_STNID_XMAC1_15_TX, 8, 0, 32); + setup_fmn_cc(&gmac[0], FMN_STNID_GMAC0, + FMN_STNID_GMAC0_TX3, 8, 24, 32); + setup_fmn_cc(dma, FMN_STNID_DMA_0, + FMN_STNID_DMA_3, 4, 4, 64); + setup_fmn_cc(sae, FMN_STNID_SEC0, + FMN_STNID_SEC1, 2, 4, 128); + break; + default: + pr_err("Unknown CPU with processor ID [%d]\n", processor_id); + pr_err("Error: Cannot initialize FMN credits.\n"); + } + + check_credit_distribution(); + +#if 0 /* debug */ + print_credit_config(&cpu[0]); + print_credit_config(&gmac[0]); +#endif +} diff --git a/arch/mips/netlogic/xlr/fmn.c b/arch/mips/netlogic/xlr/fmn.c new file mode 100644 index 000000000..f90303f31 --- /dev/null +++ b/arch/mips/netlogic/xlr/fmn.c @@ -0,0 +1,199 @@ +/* + * Copyright (c) 2003-2012 Broadcom Corporation + * All Rights Reserved + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the Broadcom + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY BROADCOM ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL BROADCOM OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/kernel.h> +#include <linux/irqreturn.h> +#include <linux/irq.h> +#include <linux/interrupt.h> + +#include <asm/mipsregs.h> +#include <asm/netlogic/interrupt.h> +#include <asm/netlogic/xlr/fmn.h> +#include <asm/netlogic/common.h> + +#define COP2_CC_INIT_CPU_DEST(dest, conf) \ +do { \ + nlm_write_c2_cc##dest(0, conf[(dest * 8) + 0]); \ + nlm_write_c2_cc##dest(1, conf[(dest * 8) + 1]); \ + nlm_write_c2_cc##dest(2, conf[(dest * 8) + 2]); \ + nlm_write_c2_cc##dest(3, conf[(dest * 8) + 3]); \ + nlm_write_c2_cc##dest(4, conf[(dest * 8) + 4]); \ + nlm_write_c2_cc##dest(5, conf[(dest * 8) + 5]); \ + nlm_write_c2_cc##dest(6, conf[(dest * 8) + 6]); \ + nlm_write_c2_cc##dest(7, conf[(dest * 8) + 7]); \ +} while (0) + +struct fmn_message_handler { + void (*action)(int, int, int, int, struct nlm_fmn_msg *, void *); + void *arg; +} msg_handlers[128]; + +/* + * FMN interrupt handler. We configure the FMN so that any messages in + * any of the CPU buckets will trigger an interrupt on the CPU. + * The message can be from any device on the FMN (like NAE/SAE/DMA). + * The source station id is used to figure out which of the registered + * handlers have to be called. + */ +static irqreturn_t fmn_message_handler(int irq, void *data) +{ + struct fmn_message_handler *hndlr; + int bucket, rv; + int size = 0, code = 0, src_stnid = 0; + struct nlm_fmn_msg msg; + uint32_t mflags, bkt_status; + + mflags = nlm_cop2_enable_irqsave(); + /* Disable message ring interrupt */ + nlm_fmn_setup_intr(irq, 0); + while (1) { + /* 8 bkts per core, [24:31] each bit represents one bucket + * Bit is Zero if bucket is not empty */ + bkt_status = (nlm_read_c2_status0() >> 24) & 0xff; + if (bkt_status == 0xff) + break; + for (bucket = 0; bucket < 8; bucket++) { + /* Continue on empty bucket */ + if (bkt_status & (1 << bucket)) + continue; + rv = nlm_fmn_receive(bucket, &size, &code, &src_stnid, + &msg); + if (rv != 0) + continue; + + hndlr = &msg_handlers[src_stnid]; + if (hndlr->action == NULL) + pr_warn("No msgring handler for stnid %d\n", + src_stnid); + else { + nlm_cop2_disable_irqrestore(mflags); + hndlr->action(bucket, src_stnid, size, code, + &msg, hndlr->arg); + mflags = nlm_cop2_enable_irqsave(); + } + } + } + /* Enable message ring intr, to any thread in core */ + nlm_fmn_setup_intr(irq, (1 << nlm_threads_per_core) - 1); + nlm_cop2_disable_irqrestore(mflags); + return IRQ_HANDLED; +} + +void xlr_percpu_fmn_init(void) +{ + struct xlr_fmn_info *cpu_fmn_info; + int *bucket_sizes; + uint32_t flags; + int id; + + BUG_ON(nlm_thread_id() != 0); + id = nlm_core_id(); + + bucket_sizes = xlr_board_fmn_config.bucket_size; + cpu_fmn_info = &xlr_board_fmn_config.cpu[id]; + flags = nlm_cop2_enable_irqsave(); + + /* Setup bucket sizes for the core. */ + nlm_write_c2_bucksize(0, bucket_sizes[id * 8 + 0]); + nlm_write_c2_bucksize(1, bucket_sizes[id * 8 + 1]); + nlm_write_c2_bucksize(2, bucket_sizes[id * 8 + 2]); + nlm_write_c2_bucksize(3, bucket_sizes[id * 8 + 3]); + nlm_write_c2_bucksize(4, bucket_sizes[id * 8 + 4]); + nlm_write_c2_bucksize(5, bucket_sizes[id * 8 + 5]); + nlm_write_c2_bucksize(6, bucket_sizes[id * 8 + 6]); + nlm_write_c2_bucksize(7, bucket_sizes[id * 8 + 7]); + + /* + * For sending FMN messages, we need credits on the destination + * bucket. Program the credits this core has on the 128 possible + * destination buckets. + * We cannot use a loop here, because the the first argument has + * to be a constant integer value. + */ + COP2_CC_INIT_CPU_DEST(0, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(1, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(2, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(3, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(4, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(5, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(6, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(7, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(8, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(9, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(10, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(11, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(12, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(13, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(14, cpu_fmn_info->credit_config); + COP2_CC_INIT_CPU_DEST(15, cpu_fmn_info->credit_config); + + /* enable FMN interrupts on this CPU */ + nlm_fmn_setup_intr(IRQ_FMN, (1 << nlm_threads_per_core) - 1); + nlm_cop2_disable_irqrestore(flags); +} + + +/* + * Register a FMN message handler with respect to the source station id + * @stnid: source station id + * @action: Handler function pointer + */ +int nlm_register_fmn_handler(int start_stnid, int end_stnid, + void (*action)(int, int, int, int, struct nlm_fmn_msg *, void *), + void *arg) +{ + int sstnid; + + for (sstnid = start_stnid; sstnid <= end_stnid; sstnid++) { + msg_handlers[sstnid].arg = arg; + smp_wmb(); + msg_handlers[sstnid].action = action; + } + pr_debug("Registered FMN msg handler for stnid %d-%d\n", + start_stnid, end_stnid); + return 0; +} + +void nlm_setup_fmn_irq(void) +{ + uint32_t flags; + + /* request irq only once */ + if (request_irq(IRQ_FMN, fmn_message_handler, IRQF_PERCPU, "fmn", NULL)) + pr_err("Failed to request irq %d (fmn)\n", IRQ_FMN); + + flags = nlm_cop2_enable_irqsave(); + nlm_fmn_setup_intr(IRQ_FMN, (1 << nlm_threads_per_core) - 1); + nlm_cop2_disable_irqrestore(flags); +} diff --git a/arch/mips/netlogic/xlr/platform-flash.c b/arch/mips/netlogic/xlr/platform-flash.c new file mode 100644 index 000000000..cf9162284 --- /dev/null +++ b/arch/mips/netlogic/xlr/platform-flash.c @@ -0,0 +1,216 @@ +/* + * Copyright 2011, Netlogic Microsystems. + * Copyright 2004, Matt Porter <mporter@kernel.crashing.org> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/delay.h> +#include <linux/ioport.h> +#include <linux/resource.h> +#include <linux/spi/flash.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/physmap.h> +#include <linux/mtd/platnand.h> + +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/flash.h> +#include <asm/netlogic/xlr/bridge.h> +#include <asm/netlogic/xlr/gpio.h> +#include <asm/netlogic/xlr/xlr.h> + +/* + * Default NOR partition layout + */ +static struct mtd_partition xlr_nor_parts[] = { + { + .name = "User FS", + .offset = 0x800000, + .size = MTDPART_SIZ_FULL, + } +}; + +/* + * Default NAND partition layout + */ +static struct mtd_partition xlr_nand_parts[] = { + { + .name = "Root Filesystem", + .offset = 64 * 64 * 2048, + .size = 432 * 64 * 2048, + }, + { + .name = "Home Filesystem", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + }, +}; + +/* Use PHYSMAP flash for NOR */ +struct physmap_flash_data xlr_nor_data = { + .width = 2, + .parts = xlr_nor_parts, + .nr_parts = ARRAY_SIZE(xlr_nor_parts), +}; + +static struct resource xlr_nor_res[] = { + { + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device xlr_nor_dev = { + .name = "physmap-flash", + .dev = { + .platform_data = &xlr_nor_data, + }, + .num_resources = ARRAY_SIZE(xlr_nor_res), + .resource = xlr_nor_res, +}; + +/* + * Use "gen_nand" driver for NAND flash + * + * There seems to be no way to store a private pointer containing + * platform specific info in gen_nand drivier. We will use a global + * struct for now, since we currently have only one NAND chip per board. + */ +struct xlr_nand_flash_priv { + int cs; + uint64_t flash_mmio; +}; + +static struct xlr_nand_flash_priv nand_priv; + +static void xlr_nand_ctrl(struct nand_chip *chip, int cmd, + unsigned int ctrl) +{ + if (ctrl & NAND_CLE) + nlm_write_reg(nand_priv.flash_mmio, + FLASH_NAND_CLE(nand_priv.cs), cmd); + else if (ctrl & NAND_ALE) + nlm_write_reg(nand_priv.flash_mmio, + FLASH_NAND_ALE(nand_priv.cs), cmd); +} + +struct platform_nand_data xlr_nand_data = { + .chip = { + .nr_chips = 1, + .nr_partitions = ARRAY_SIZE(xlr_nand_parts), + .chip_delay = 50, + .partitions = xlr_nand_parts, + }, + .ctrl = { + .cmd_ctrl = xlr_nand_ctrl, + }, +}; + +static struct resource xlr_nand_res[] = { + { + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device xlr_nand_dev = { + .name = "gen_nand", + .id = -1, + .num_resources = ARRAY_SIZE(xlr_nand_res), + .resource = xlr_nand_res, + .dev = { + .platform_data = &xlr_nand_data, + } +}; + +/* + * XLR/XLS supports upto 8 devices on its FLASH interface. The value in + * FLASH_BAR (on the MEM/IO bridge) gives the base for mapping all the + * flash devices. + * Under this, each flash device has an offset and size given by the + * CSBASE_ADDR and CSBASE_MASK registers for the device. + * + * The CSBASE_ registers are expected to be setup by the bootloader. + */ +static void setup_flash_resource(uint64_t flash_mmio, + uint64_t flash_map_base, int cs, struct resource *res) +{ + u32 base, mask; + + base = nlm_read_reg(flash_mmio, FLASH_CSBASE_ADDR(cs)); + mask = nlm_read_reg(flash_mmio, FLASH_CSADDR_MASK(cs)); + + res->start = flash_map_base + ((unsigned long)base << 16); + res->end = res->start + (mask + 1) * 64 * 1024; +} + +static int __init xlr_flash_init(void) +{ + uint64_t gpio_mmio, flash_mmio, flash_map_base; + u32 gpio_resetcfg, flash_bar; + int cs, boot_nand, boot_nor; + + /* Flash address bits 39:24 is in bridge flash BAR */ + flash_bar = nlm_read_reg(nlm_io_base, BRIDGE_FLASH_BAR); + flash_map_base = (flash_bar & 0xffff0000) << 8; + + gpio_mmio = nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET); + flash_mmio = nlm_mmio_base(NETLOGIC_IO_FLASH_OFFSET); + + /* Get the chip reset config */ + gpio_resetcfg = nlm_read_reg(gpio_mmio, GPIO_PWRON_RESET_CFG_REG); + + /* Check for boot flash type */ + boot_nor = boot_nand = 0; + if (nlm_chip_is_xls()) { + /* On XLS, check boot from NAND bit (GPIO reset reg bit 16) */ + if (gpio_resetcfg & (1 << 16)) + boot_nand = 1; + + /* check boot from PCMCIA, (GPIO reset reg bit 15 */ + if ((gpio_resetcfg & (1 << 15)) == 0) + boot_nor = 1; /* not set, booted from NOR */ + } else { /* XLR */ + /* check boot from PCMCIA (bit 16 in GPIO reset on XLR) */ + if ((gpio_resetcfg & (1 << 16)) == 0) + boot_nor = 1; /* not set, booted from NOR */ + } + + /* boot flash at chip select 0 */ + cs = 0; + + if (boot_nand) { + nand_priv.cs = cs; + nand_priv.flash_mmio = flash_mmio; + setup_flash_resource(flash_mmio, flash_map_base, cs, + xlr_nand_res); + + /* Initialize NAND flash at CS 0 */ + nlm_write_reg(flash_mmio, FLASH_CSDEV_PARM(cs), + FLASH_NAND_CSDEV_PARAM); + nlm_write_reg(flash_mmio, FLASH_CSTIME_PARMA(cs), + FLASH_NAND_CSTIME_PARAMA); + nlm_write_reg(flash_mmio, FLASH_CSTIME_PARMB(cs), + FLASH_NAND_CSTIME_PARAMB); + + pr_info("ChipSelect %d: NAND Flash %pR\n", cs, xlr_nand_res); + return platform_device_register(&xlr_nand_dev); + } + + if (boot_nor) { + setup_flash_resource(flash_mmio, flash_map_base, cs, + xlr_nor_res); + pr_info("ChipSelect %d: NOR Flash %pR\n", cs, xlr_nor_res); + return platform_device_register(&xlr_nor_dev); + } + return 0; +} + +arch_initcall(xlr_flash_init); diff --git a/arch/mips/netlogic/xlr/platform.c b/arch/mips/netlogic/xlr/platform.c new file mode 100644 index 000000000..4785932af --- /dev/null +++ b/arch/mips/netlogic/xlr/platform.c @@ -0,0 +1,250 @@ +/* + * Copyright 2011, Netlogic Microsystems. + * Copyright 2004, Matt Porter <mporter@kernel.crashing.org> + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#include <linux/device.h> +#include <linux/platform_device.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/resource.h> +#include <linux/serial_8250.h> +#include <linux/serial_reg.h> +#include <linux/i2c.h> +#include <linux/usb/ehci_pdriver.h> +#include <linux/usb/ohci_pdriver.h> + +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> +#include <asm/netlogic/xlr/xlr.h> + +static unsigned int nlm_xlr_uart_in(struct uart_port *p, int offset) +{ + uint64_t uartbase; + unsigned int value; + + /* sign extend to 64 bits, if needed */ + uartbase = (uint64_t)(long)p->membase; + value = nlm_read_reg(uartbase, offset); + + /* See XLR/XLS errata */ + if (offset == UART_MSR) + value ^= 0xF0; + else if (offset == UART_MCR) + value ^= 0x3; + + return value; +} + +static void nlm_xlr_uart_out(struct uart_port *p, int offset, int value) +{ + uint64_t uartbase; + + /* sign extend to 64 bits, if needed */ + uartbase = (uint64_t)(long)p->membase; + + /* See XLR/XLS errata */ + if (offset == UART_MSR) + value ^= 0xF0; + else if (offset == UART_MCR) + value ^= 0x3; + + nlm_write_reg(uartbase, offset, value); +} + +#define PORT(_irq) \ + { \ + .irq = _irq, \ + .regshift = 2, \ + .iotype = UPIO_MEM32, \ + .flags = (UPF_SKIP_TEST | \ + UPF_FIXED_TYPE | UPF_BOOT_AUTOCONF),\ + .uartclk = PIC_CLK_HZ, \ + .type = PORT_16550A, \ + .serial_in = nlm_xlr_uart_in, \ + .serial_out = nlm_xlr_uart_out, \ + } + +static struct plat_serial8250_port xlr_uart_data[] = { + PORT(PIC_UART_0_IRQ), + PORT(PIC_UART_1_IRQ), + {}, +}; + +static struct platform_device uart_device = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = xlr_uart_data, + }, +}; + +static int __init nlm_uart_init(void) +{ + unsigned long uartbase; + + uartbase = (unsigned long)nlm_mmio_base(NETLOGIC_IO_UART_0_OFFSET); + xlr_uart_data[0].membase = (void __iomem *)uartbase; + xlr_uart_data[0].mapbase = CPHYSADDR(uartbase); + + uartbase = (unsigned long)nlm_mmio_base(NETLOGIC_IO_UART_1_OFFSET); + xlr_uart_data[1].membase = (void __iomem *)uartbase; + xlr_uart_data[1].mapbase = CPHYSADDR(uartbase); + + return platform_device_register(&uart_device); +} + +arch_initcall(nlm_uart_init); + +#ifdef CONFIG_USB +/* Platform USB devices, only on XLS chips */ +static u64 xls_usb_dmamask = ~(u32)0; +#define USB_PLATFORM_DEV(n, i, irq) \ + { \ + .name = n, \ + .id = i, \ + .num_resources = 2, \ + .dev = { \ + .dma_mask = &xls_usb_dmamask, \ + .coherent_dma_mask = 0xffffffff, \ + }, \ + .resource = (struct resource[]) { \ + { \ + .flags = IORESOURCE_MEM, \ + }, \ + { \ + .start = irq, \ + .end = irq, \ + .flags = IORESOURCE_IRQ, \ + }, \ + }, \ + } + +static struct usb_ehci_pdata xls_usb_ehci_pdata = { + .caps_offset = 0, +}; + +static struct usb_ohci_pdata xls_usb_ohci_pdata; + +static struct platform_device xls_usb_ehci_device = + USB_PLATFORM_DEV("ehci-platform", 0, PIC_USB_IRQ); +static struct platform_device xls_usb_ohci_device_0 = + USB_PLATFORM_DEV("ohci-platform", 1, PIC_USB_IRQ); +static struct platform_device xls_usb_ohci_device_1 = + USB_PLATFORM_DEV("ohci-platform", 2, PIC_USB_IRQ); + +static struct platform_device *xls_platform_devices[] = { + &xls_usb_ehci_device, + &xls_usb_ohci_device_0, + &xls_usb_ohci_device_1, +}; + +int xls_platform_usb_init(void) +{ + uint64_t usb_mmio, gpio_mmio; + unsigned long memres; + uint32_t val; + + if (!nlm_chip_is_xls()) + return 0; + + gpio_mmio = nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET); + usb_mmio = nlm_mmio_base(NETLOGIC_IO_USB_1_OFFSET); + + /* Clear Rogue Phy INTs */ + nlm_write_reg(usb_mmio, 49, 0x10000000); + /* Enable all interrupts */ + nlm_write_reg(usb_mmio, 50, 0x1f000000); + + /* Enable ports */ + nlm_write_reg(usb_mmio, 1, 0x07000500); + + val = nlm_read_reg(gpio_mmio, 21); + if (((val >> 22) & 0x01) == 0) { + pr_info("Detected USB Device mode - Not supported!\n"); + nlm_write_reg(usb_mmio, 0, 0x01000000); + return 0; + } + + pr_info("Detected USB Host mode - Adding XLS USB devices.\n"); + /* Clear reset, host mode */ + nlm_write_reg(usb_mmio, 0, 0x02000000); + + /* Memory resource for various XLS usb ports */ + usb_mmio = nlm_mmio_base(NETLOGIC_IO_USB_0_OFFSET); + memres = CPHYSADDR((unsigned long)usb_mmio); + xls_usb_ehci_device.resource[0].start = memres; + xls_usb_ehci_device.resource[0].end = memres + 0x400 - 1; + xls_usb_ehci_device.dev.platform_data = &xls_usb_ehci_pdata; + + memres += 0x400; + xls_usb_ohci_device_0.resource[0].start = memres; + xls_usb_ohci_device_0.resource[0].end = memres + 0x400 - 1; + xls_usb_ohci_device_0.dev.platform_data = &xls_usb_ohci_pdata; + + memres += 0x400; + xls_usb_ohci_device_1.resource[0].start = memres; + xls_usb_ohci_device_1.resource[0].end = memres + 0x400 - 1; + xls_usb_ohci_device_1.dev.platform_data = &xls_usb_ohci_pdata; + + return platform_add_devices(xls_platform_devices, + ARRAY_SIZE(xls_platform_devices)); +} + +arch_initcall(xls_platform_usb_init); +#endif + +#ifdef CONFIG_I2C +static struct i2c_board_info nlm_i2c_board_info1[] __initdata = { + /* All XLR boards have this RTC and Max6657 Temp Chip */ + [0] = { + .type = "ds1374", + .addr = 0x68 + }, + [1] = { + .type = "lm90", + .addr = 0x4c + }, +}; + +static struct resource i2c_resources[] = { + [0] = { + .start = 0, /* filled at init */ + .end = 0, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device nlm_xlr_i2c_1 = { + .name = "xlr-i2cbus", + .id = 1, + .num_resources = 1, + .resource = i2c_resources, +}; + +static int __init nlm_i2c_init(void) +{ + int err = 0; + unsigned int offset; + + /* I2C bus 0 does not have any useful devices, configure only bus 1 */ + offset = NETLOGIC_IO_I2C_1_OFFSET; + nlm_xlr_i2c_1.resource[0].start = CPHYSADDR(nlm_mmio_base(offset)); + nlm_xlr_i2c_1.resource[0].end = nlm_xlr_i2c_1.resource[0].start + 0xfff; + + platform_device_register(&nlm_xlr_i2c_1); + + err = i2c_register_board_info(1, nlm_i2c_board_info1, + ARRAY_SIZE(nlm_i2c_board_info1)); + if (err < 0) + pr_err("nlm-i2c: cannot register board I2C devices\n"); + return err; +} + +arch_initcall(nlm_i2c_init); +#endif diff --git a/arch/mips/netlogic/xlr/setup.c b/arch/mips/netlogic/xlr/setup.c new file mode 100644 index 000000000..627e88101 --- /dev/null +++ b/arch/mips/netlogic/xlr/setup.c @@ -0,0 +1,211 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/kernel.h> +#include <linux/serial_8250.h> +#include <linux/memblock.h> +#include <linux/pm.h> + +#include <asm/idle.h> +#include <asm/reboot.h> +#include <asm/time.h> +#include <asm/bootinfo.h> + +#include <asm/netlogic/interrupt.h> +#include <asm/netlogic/psb-bootinfo.h> +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/common.h> + +#include <asm/netlogic/xlr/xlr.h> +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> +#include <asm/netlogic/xlr/gpio.h> +#include <asm/netlogic/xlr/fmn.h> + +uint64_t nlm_io_base = DEFAULT_NETLOGIC_IO_BASE; +struct psb_info nlm_prom_info; + +/* default to uniprocessor */ +unsigned int nlm_threads_per_core = 1; +struct nlm_soc_info nlm_nodes[NLM_NR_NODES]; +cpumask_t nlm_cpumask = CPU_MASK_CPU0; + +static void nlm_linux_exit(void) +{ + uint64_t gpiobase; + + gpiobase = nlm_mmio_base(NETLOGIC_IO_GPIO_OFFSET); + /* trigger a chip reset by writing 1 to GPIO_SWRESET_REG */ + nlm_write_reg(gpiobase, GPIO_SWRESET_REG, 1); + for ( ; ; ) + cpu_wait(); +} + +void __init plat_mem_setup(void) +{ + _machine_restart = (void (*)(char *))nlm_linux_exit; + _machine_halt = nlm_linux_exit; + pm_power_off = nlm_linux_exit; +} + +const char *get_system_type(void) +{ + return "Netlogic XLR/XLS Series"; +} + +unsigned int nlm_get_cpu_frequency(void) +{ + return (unsigned int)nlm_prom_info.cpu_frequency; +} + +void __init prom_free_prom_memory(void) +{ + /* Nothing yet */ +} + +void nlm_percpu_init(int hwcpuid) +{ + if (hwcpuid % 4 == 0) + xlr_percpu_fmn_init(); +} + +static void __init build_arcs_cmdline(int *argv) +{ + int i, remain, len; + char *arg; + + remain = sizeof(arcs_cmdline) - 1; + arcs_cmdline[0] = '\0'; + for (i = 0; argv[i] != 0; i++) { + arg = (char *)(long)argv[i]; + len = strlen(arg); + if (len + 1 > remain) + break; + strcat(arcs_cmdline, arg); + strcat(arcs_cmdline, " "); + remain -= len + 1; + } + + /* Add the default options here */ + if ((strstr(arcs_cmdline, "console=")) == NULL) { + arg = "console=ttyS0,38400 "; + len = strlen(arg); + if (len > remain) + goto fail; + strcat(arcs_cmdline, arg); + remain -= len; + } +#ifdef CONFIG_BLK_DEV_INITRD + if ((strstr(arcs_cmdline, "rdinit=")) == NULL) { + arg = "rdinit=/sbin/init "; + len = strlen(arg); + if (len > remain) + goto fail; + strcat(arcs_cmdline, arg); + remain -= len; + } +#endif + return; +fail: + panic("Cannot add %s, command line too big!", arg); +} + +static void prom_add_memory(void) +{ + struct nlm_boot_mem_map *bootm; + u64 start, size; + u64 pref_backup = 512; /* avoid pref walking beyond end */ + int i; + + bootm = (void *)(long)nlm_prom_info.psb_mem_map; + for (i = 0; i < bootm->nr_map; i++) { + if (bootm->map[i].type != NLM_BOOT_MEM_RAM) + continue; + start = bootm->map[i].addr; + size = bootm->map[i].size; + + /* Work around for using bootloader mem */ + if (i == 0 && start == 0 && size == 0x0c000000) + size = 0x0ff00000; + + memblock_add(start, size - pref_backup); + } +} + +static void nlm_init_node(void) +{ + struct nlm_soc_info *nodep; + + nodep = nlm_current_node(); + nodep->picbase = nlm_mmio_base(NETLOGIC_IO_PIC_OFFSET); + nodep->ebase = read_c0_ebase() & MIPS_EBASE_BASE; + spin_lock_init(&nodep->piclock); +} + +void __init prom_init(void) +{ + int *argv, *envp; /* passed as 32 bit ptrs */ + struct psb_info *prom_infop; + void *reset_vec; +#ifdef CONFIG_SMP + int i; +#endif + + /* truncate to 32 bit and sign extend all args */ + argv = (int *)(long)(int)fw_arg1; + envp = (int *)(long)(int)fw_arg2; + prom_infop = (struct psb_info *)(long)(int)fw_arg3; + + nlm_prom_info = *prom_infop; + nlm_init_node(); + + /* Update reset entry point with CPU init code */ + reset_vec = (void *)CKSEG1ADDR(RESET_VEC_PHYS); + memset(reset_vec, 0, RESET_VEC_SIZE); + memcpy(reset_vec, (void *)nlm_reset_entry, + (nlm_reset_entry_end - nlm_reset_entry)); + + build_arcs_cmdline(argv); + prom_add_memory(); + +#ifdef CONFIG_SMP + for (i = 0; i < 32; i++) + if (nlm_prom_info.online_cpu_map & (1 << i)) + cpumask_set_cpu(i, &nlm_cpumask); + nlm_wakeup_secondary_cpus(); + register_smp_ops(&nlm_smp_ops); +#endif + xlr_board_info_setup(); + xlr_percpu_fmn_init(); +} diff --git a/arch/mips/netlogic/xlr/wakeup.c b/arch/mips/netlogic/xlr/wakeup.c new file mode 100644 index 000000000..d61cba1e9 --- /dev/null +++ b/arch/mips/netlogic/xlr/wakeup.c @@ -0,0 +1,85 @@ +/* + * Copyright 2003-2011 NetLogic Microsystems, Inc. (NetLogic). All rights + * reserved. + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the NetLogic + * license below: + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY NETLOGIC ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL NETLOGIC OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE + * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN + * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/delay.h> +#include <linux/threads.h> + +#include <asm/asm.h> +#include <asm/asm-offsets.h> +#include <asm/mipsregs.h> +#include <asm/addrspace.h> +#include <asm/string.h> + +#include <asm/netlogic/haldefs.h> +#include <asm/netlogic/common.h> +#include <asm/netlogic/mips-extns.h> + +#include <asm/netlogic/xlr/iomap.h> +#include <asm/netlogic/xlr/pic.h> + +int xlr_wakeup_secondary_cpus(void) +{ + struct nlm_soc_info *nodep; + unsigned int i, j, boot_cpu; + volatile u32 *cpu_ready = nlm_get_boot_data(BOOT_CPU_READY); + + /* + * In case of RMI boot, hit with NMI to get the cores + * from bootloader to linux code. + */ + nodep = nlm_get_node(0); + boot_cpu = hard_smp_processor_id(); + nlm_set_nmi_handler(nlm_rmiboot_preboot); + for (i = 0; i < NR_CPUS; i++) { + if (i == boot_cpu || !cpumask_test_cpu(i, &nlm_cpumask)) + continue; + nlm_pic_send_ipi(nodep->picbase, i, 1, 1); /* send NMI */ + } + + /* Fill up the coremask early */ + nodep->coremask = 1; + for (i = 1; i < nlm_cores_per_node(); i++) { + for (j = 1000000; j > 0; j--) { + if (cpu_ready[i * NLM_THREADS_PER_CORE]) + break; + udelay(10); + } + if (j != 0) + nodep->coremask |= (1u << i); + else + pr_err("Failed to wakeup core %d\n", i); + } + + return 0; +} |