From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- arch/mips/loongson32/Kconfig | 38 +++++ arch/mips/loongson32/Makefile | 18 +++ arch/mips/loongson32/Platform | 3 + arch/mips/loongson32/common/Makefile | 6 + arch/mips/loongson32/common/irq.c | 191 ++++++++++++++++++++++ arch/mips/loongson32/common/platform.c | 287 +++++++++++++++++++++++++++++++++ arch/mips/loongson32/common/prom.c | 42 +++++ arch/mips/loongson32/common/setup.c | 26 +++ arch/mips/loongson32/common/time.c | 23 +++ arch/mips/loongson32/ls1b/Makefile | 6 + arch/mips/loongson32/ls1b/board.c | 57 +++++++ arch/mips/loongson32/ls1c/Makefile | 6 + arch/mips/loongson32/ls1c/board.c | 23 +++ 13 files changed, 726 insertions(+) create mode 100644 arch/mips/loongson32/Kconfig create mode 100644 arch/mips/loongson32/Makefile create mode 100644 arch/mips/loongson32/Platform create mode 100644 arch/mips/loongson32/common/Makefile create mode 100644 arch/mips/loongson32/common/irq.c create mode 100644 arch/mips/loongson32/common/platform.c create mode 100644 arch/mips/loongson32/common/prom.c create mode 100644 arch/mips/loongson32/common/setup.c create mode 100644 arch/mips/loongson32/common/time.c create mode 100644 arch/mips/loongson32/ls1b/Makefile create mode 100644 arch/mips/loongson32/ls1b/board.c create mode 100644 arch/mips/loongson32/ls1c/Makefile create mode 100644 arch/mips/loongson32/ls1c/board.c (limited to 'arch/mips/loongson32') diff --git a/arch/mips/loongson32/Kconfig b/arch/mips/loongson32/Kconfig new file mode 100644 index 0000000000..a7c5009595 --- /dev/null +++ b/arch/mips/loongson32/Kconfig @@ -0,0 +1,38 @@ +# SPDX-License-Identifier: GPL-2.0 +if MACH_LOONGSON32 + +choice + prompt "Machine Type" + +config LOONGSON1_LS1B + bool "Loongson LS1B board" + select CEVT_R4K if !MIPS_EXTERNAL_TIMER + select CSRC_R4K if !MIPS_EXTERNAL_TIMER + select SYS_HAS_CPU_LOONGSON1B + select DMA_NONCOHERENT + select BOOT_ELF32 + select IRQ_MIPS_CPU + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_LITTLE_ENDIAN + select SYS_SUPPORTS_HIGHMEM + select SYS_HAS_EARLY_PRINTK + select USE_GENERIC_EARLY_PRINTK_8250 + select COMMON_CLK + +config LOONGSON1_LS1C + bool "Loongson LS1C board" + select CEVT_R4K if !MIPS_EXTERNAL_TIMER + select CSRC_R4K if !MIPS_EXTERNAL_TIMER + select SYS_HAS_CPU_LOONGSON1C + select DMA_NONCOHERENT + select BOOT_ELF32 + select IRQ_MIPS_CPU + select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_LITTLE_ENDIAN + select SYS_SUPPORTS_HIGHMEM + select SYS_HAS_EARLY_PRINTK + select USE_GENERIC_EARLY_PRINTK_8250 + select COMMON_CLK +endchoice + +endif # MACH_LOONGSON32 diff --git a/arch/mips/loongson32/Makefile b/arch/mips/loongson32/Makefile new file mode 100644 index 0000000000..ba10954b4b --- /dev/null +++ b/arch/mips/loongson32/Makefile @@ -0,0 +1,18 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Common code for all Loongson 1 based systems +# + +obj-$(CONFIG_MACH_LOONGSON32) += common/ + +# +# Loongson LS1B board +# + +obj-$(CONFIG_LOONGSON1_LS1B) += ls1b/ + +# +# Loongson LS1C board +# + +obj-$(CONFIG_LOONGSON1_LS1C) += ls1c/ diff --git a/arch/mips/loongson32/Platform b/arch/mips/loongson32/Platform new file mode 100644 index 0000000000..3b9673e7a2 --- /dev/null +++ b/arch/mips/loongson32/Platform @@ -0,0 +1,3 @@ +cflags-$(CONFIG_CPU_LOONGSON32) += -march=mips32r2 -Wa,--trap +cflags-$(CONFIG_MACH_LOONGSON32) += -I$(srctree)/arch/mips/include/asm/mach-loongson32 +load-$(CONFIG_CPU_LOONGSON32) += 0xffffffff80200000 diff --git a/arch/mips/loongson32/common/Makefile b/arch/mips/loongson32/common/Makefile new file mode 100644 index 0000000000..f3950d3081 --- /dev/null +++ b/arch/mips/loongson32/common/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Makefile for common code of loongson1 based machines. +# + +obj-y += time.o irq.o platform.o prom.o setup.o diff --git a/arch/mips/loongson32/common/irq.c b/arch/mips/loongson32/common/irq.c new file mode 100644 index 0000000000..9a50070f74 --- /dev/null +++ b/arch/mips/loongson32/common/irq.c @@ -0,0 +1,191 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2011 Zhang, Keguang + */ + +#include +#include +#include + +#include +#include + +#define LS1X_INTC_REG(n, x) \ + ((void __iomem *)KSEG1ADDR(LS1X_INTC_BASE + (n * 0x18) + (x))) + +#define LS1X_INTC_INTISR(n) LS1X_INTC_REG(n, 0x0) +#define LS1X_INTC_INTIEN(n) LS1X_INTC_REG(n, 0x4) +#define LS1X_INTC_INTSET(n) LS1X_INTC_REG(n, 0x8) +#define LS1X_INTC_INTCLR(n) LS1X_INTC_REG(n, 0xc) +#define LS1X_INTC_INTPOL(n) LS1X_INTC_REG(n, 0x10) +#define LS1X_INTC_INTEDGE(n) LS1X_INTC_REG(n, 0x14) + +static void ls1x_irq_ack(struct irq_data *d) +{ + unsigned int bit = (d->irq - LS1X_IRQ_BASE) & 0x1f; + unsigned int n = (d->irq - LS1X_IRQ_BASE) >> 5; + + __raw_writel(__raw_readl(LS1X_INTC_INTCLR(n)) + | (1 << bit), LS1X_INTC_INTCLR(n)); +} + +static void ls1x_irq_mask(struct irq_data *d) +{ + unsigned int bit = (d->irq - LS1X_IRQ_BASE) & 0x1f; + unsigned int n = (d->irq - LS1X_IRQ_BASE) >> 5; + + __raw_writel(__raw_readl(LS1X_INTC_INTIEN(n)) + & ~(1 << bit), LS1X_INTC_INTIEN(n)); +} + +static void ls1x_irq_mask_ack(struct irq_data *d) +{ + unsigned int bit = (d->irq - LS1X_IRQ_BASE) & 0x1f; + unsigned int n = (d->irq - LS1X_IRQ_BASE) >> 5; + + __raw_writel(__raw_readl(LS1X_INTC_INTIEN(n)) + & ~(1 << bit), LS1X_INTC_INTIEN(n)); + __raw_writel(__raw_readl(LS1X_INTC_INTCLR(n)) + | (1 << bit), LS1X_INTC_INTCLR(n)); +} + +static void ls1x_irq_unmask(struct irq_data *d) +{ + unsigned int bit = (d->irq - LS1X_IRQ_BASE) & 0x1f; + unsigned int n = (d->irq - LS1X_IRQ_BASE) >> 5; + + __raw_writel(__raw_readl(LS1X_INTC_INTIEN(n)) + | (1 << bit), LS1X_INTC_INTIEN(n)); +} + +static int ls1x_irq_settype(struct irq_data *d, unsigned int type) +{ + unsigned int bit = (d->irq - LS1X_IRQ_BASE) & 0x1f; + unsigned int n = (d->irq - LS1X_IRQ_BASE) >> 5; + + switch (type) { + case IRQ_TYPE_LEVEL_HIGH: + __raw_writel(__raw_readl(LS1X_INTC_INTPOL(n)) + | (1 << bit), LS1X_INTC_INTPOL(n)); + __raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n)) + & ~(1 << bit), LS1X_INTC_INTEDGE(n)); + break; + case IRQ_TYPE_LEVEL_LOW: + __raw_writel(__raw_readl(LS1X_INTC_INTPOL(n)) + & ~(1 << bit), LS1X_INTC_INTPOL(n)); + __raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n)) + & ~(1 << bit), LS1X_INTC_INTEDGE(n)); + break; + case IRQ_TYPE_EDGE_RISING: + __raw_writel(__raw_readl(LS1X_INTC_INTPOL(n)) + | (1 << bit), LS1X_INTC_INTPOL(n)); + __raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n)) + | (1 << bit), LS1X_INTC_INTEDGE(n)); + break; + case IRQ_TYPE_EDGE_FALLING: + __raw_writel(__raw_readl(LS1X_INTC_INTPOL(n)) + & ~(1 << bit), LS1X_INTC_INTPOL(n)); + __raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n)) + | (1 << bit), LS1X_INTC_INTEDGE(n)); + break; + case IRQ_TYPE_EDGE_BOTH: + __raw_writel(__raw_readl(LS1X_INTC_INTPOL(n)) + & ~(1 << bit), LS1X_INTC_INTPOL(n)); + __raw_writel(__raw_readl(LS1X_INTC_INTEDGE(n)) + | (1 << bit), LS1X_INTC_INTEDGE(n)); + break; + case IRQ_TYPE_NONE: + break; + default: + return -EINVAL; + } + + return 0; +} + +static struct irq_chip ls1x_irq_chip = { + .name = "LS1X-INTC", + .irq_ack = ls1x_irq_ack, + .irq_mask = ls1x_irq_mask, + .irq_mask_ack = ls1x_irq_mask_ack, + .irq_unmask = ls1x_irq_unmask, + .irq_set_type = ls1x_irq_settype, +}; + +static void ls1x_irq_dispatch(int n) +{ + u32 int_status, irq; + + /* Get pending sources, masked by current enables */ + int_status = __raw_readl(LS1X_INTC_INTISR(n)) & + __raw_readl(LS1X_INTC_INTIEN(n)); + + if (int_status) { + irq = LS1X_IRQ(n, __ffs(int_status)); + do_IRQ(irq); + } +} + +asmlinkage void plat_irq_dispatch(void) +{ + unsigned int pending; + + pending = read_c0_cause() & read_c0_status() & ST0_IM; + + if (pending & CAUSEF_IP7) + do_IRQ(TIMER_IRQ); + else if (pending & CAUSEF_IP2) + ls1x_irq_dispatch(0); /* INT0 */ + else if (pending & CAUSEF_IP3) + ls1x_irq_dispatch(1); /* INT1 */ + else if (pending & CAUSEF_IP4) + ls1x_irq_dispatch(2); /* INT2 */ + else if (pending & CAUSEF_IP5) + ls1x_irq_dispatch(3); /* INT3 */ + else if (pending & CAUSEF_IP6) + ls1x_irq_dispatch(4); /* INT4 */ + else + spurious_interrupt(); + +} + +static void __init ls1x_irq_init(int base) +{ + int n; + + /* Disable interrupts and clear pending, + * setup all IRQs as high level triggered + */ + for (n = 0; n < INTN; n++) { + __raw_writel(0x0, LS1X_INTC_INTIEN(n)); + __raw_writel(0xffffffff, LS1X_INTC_INTCLR(n)); + __raw_writel(0xffffffff, LS1X_INTC_INTPOL(n)); + /* set DMA0, DMA1 and DMA2 to edge trigger */ + __raw_writel(n ? 0x0 : 0xe000, LS1X_INTC_INTEDGE(n)); + } + + + for (n = base; n < NR_IRQS; n++) { + irq_set_chip_and_handler(n, &ls1x_irq_chip, + handle_level_irq); + } + + if (request_irq(INT0_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", INT0_IRQ); + if (request_irq(INT1_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", INT1_IRQ); + if (request_irq(INT2_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", INT2_IRQ); + if (request_irq(INT3_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", INT3_IRQ); +#if defined(CONFIG_LOONGSON1_LS1C) + if (request_irq(INT4_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", INT4_IRQ); +#endif +} + +void __init arch_init_irq(void) +{ + mips_cpu_irq_init(); + ls1x_irq_init(LS1X_IRQ_BASE); +} diff --git a/arch/mips/loongson32/common/platform.c b/arch/mips/loongson32/common/platform.c new file mode 100644 index 0000000000..8075590a9f --- /dev/null +++ b/arch/mips/loongson32/common/platform.c @@ -0,0 +1,287 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2011-2016 Zhang, Keguang + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +/* 8250/16550 compatible UART */ +#define LS1X_UART(_id) \ + { \ + .mapbase = LS1X_UART ## _id ## _BASE, \ + .irq = LS1X_UART ## _id ## _IRQ, \ + .iotype = UPIO_MEM, \ + .flags = UPF_IOREMAP | UPF_FIXED_TYPE, \ + .type = PORT_16550A, \ + } + +static struct plat_serial8250_port ls1x_serial8250_pdata[] = { + LS1X_UART(0), + LS1X_UART(1), + LS1X_UART(2), + LS1X_UART(3), + {}, +}; + +struct platform_device ls1x_uart_pdev = { + .name = "serial8250", + .id = PLAT8250_DEV_PLATFORM, + .dev = { + .platform_data = ls1x_serial8250_pdata, + }, +}; + +void __init ls1x_serial_set_uartclk(struct platform_device *pdev) +{ + struct clk *clk; + struct plat_serial8250_port *p; + + clk = clk_get(&pdev->dev, pdev->name); + if (IS_ERR(clk)) { + pr_err("unable to get %s clock, err=%ld", + pdev->name, PTR_ERR(clk)); + return; + } + clk_prepare_enable(clk); + + for (p = pdev->dev.platform_data; p->flags != 0; ++p) + p->uartclk = clk_get_rate(clk); +} + +/* Synopsys Ethernet GMAC */ +static struct stmmac_mdio_bus_data ls1x_mdio_bus_data = { + .phy_mask = 0, +}; + +static struct stmmac_dma_cfg ls1x_eth_dma_cfg = { + .pbl = 1, +}; + +int ls1x_eth_mux_init(struct platform_device *pdev, void *priv) +{ + struct plat_stmmacenet_data *plat_dat = NULL; + u32 val; + + val = __raw_readl(LS1X_MUX_CTRL1); + +#if defined(CONFIG_LOONGSON1_LS1B) + plat_dat = dev_get_platdata(&pdev->dev); + if (plat_dat->bus_id) { + __raw_writel(__raw_readl(LS1X_MUX_CTRL0) | GMAC1_USE_UART1 | + GMAC1_USE_UART0, LS1X_MUX_CTRL0); + switch (plat_dat->phy_interface) { + case PHY_INTERFACE_MODE_RGMII: + val &= ~(GMAC1_USE_TXCLK | GMAC1_USE_PWM23); + break; + case PHY_INTERFACE_MODE_MII: + val |= (GMAC1_USE_TXCLK | GMAC1_USE_PWM23); + break; + default: + pr_err("unsupported mii mode %d\n", + plat_dat->phy_interface); + return -ENOTSUPP; + } + val &= ~GMAC1_SHUT; + } else { + switch (plat_dat->phy_interface) { + case PHY_INTERFACE_MODE_RGMII: + val &= ~(GMAC0_USE_TXCLK | GMAC0_USE_PWM01); + break; + case PHY_INTERFACE_MODE_MII: + val |= (GMAC0_USE_TXCLK | GMAC0_USE_PWM01); + break; + default: + pr_err("unsupported mii mode %d\n", + plat_dat->phy_interface); + return -ENOTSUPP; + } + val &= ~GMAC0_SHUT; + } + __raw_writel(val, LS1X_MUX_CTRL1); +#elif defined(CONFIG_LOONGSON1_LS1C) + plat_dat = dev_get_platdata(&pdev->dev); + + val &= ~PHY_INTF_SELI; + if (plat_dat->phy_interface == PHY_INTERFACE_MODE_RMII) + val |= 0x4 << PHY_INTF_SELI_SHIFT; + __raw_writel(val, LS1X_MUX_CTRL1); + + val = __raw_readl(LS1X_MUX_CTRL0); + __raw_writel(val & (~GMAC_SHUT), LS1X_MUX_CTRL0); +#endif + + return 0; +} + +static struct plat_stmmacenet_data ls1x_eth0_pdata = { + .bus_id = 0, + .phy_addr = -1, +#if defined(CONFIG_LOONGSON1_LS1B) + .phy_interface = PHY_INTERFACE_MODE_MII, +#elif defined(CONFIG_LOONGSON1_LS1C) + .phy_interface = PHY_INTERFACE_MODE_RMII, +#endif + .mdio_bus_data = &ls1x_mdio_bus_data, + .dma_cfg = &ls1x_eth_dma_cfg, + .has_gmac = 1, + .tx_coe = 1, + .rx_queues_to_use = 1, + .tx_queues_to_use = 1, + .init = ls1x_eth_mux_init, +}; + +static struct resource ls1x_eth0_resources[] = { + [0] = { + .start = LS1X_GMAC0_BASE, + .end = LS1X_GMAC0_BASE + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .name = "macirq", + .start = LS1X_GMAC0_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +struct platform_device ls1x_eth0_pdev = { + .name = "stmmaceth", + .id = 0, + .num_resources = ARRAY_SIZE(ls1x_eth0_resources), + .resource = ls1x_eth0_resources, + .dev = { + .platform_data = &ls1x_eth0_pdata, + }, +}; + +#ifdef CONFIG_LOONGSON1_LS1B +static struct plat_stmmacenet_data ls1x_eth1_pdata = { + .bus_id = 1, + .phy_addr = -1, + .phy_interface = PHY_INTERFACE_MODE_MII, + .mdio_bus_data = &ls1x_mdio_bus_data, + .dma_cfg = &ls1x_eth_dma_cfg, + .has_gmac = 1, + .tx_coe = 1, + .rx_queues_to_use = 1, + .tx_queues_to_use = 1, + .init = ls1x_eth_mux_init, +}; + +static struct resource ls1x_eth1_resources[] = { + [0] = { + .start = LS1X_GMAC1_BASE, + .end = LS1X_GMAC1_BASE + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .name = "macirq", + .start = LS1X_GMAC1_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +struct platform_device ls1x_eth1_pdev = { + .name = "stmmaceth", + .id = 1, + .num_resources = ARRAY_SIZE(ls1x_eth1_resources), + .resource = ls1x_eth1_resources, + .dev = { + .platform_data = &ls1x_eth1_pdata, + }, +}; +#endif /* CONFIG_LOONGSON1_LS1B */ + +/* GPIO */ +static struct resource ls1x_gpio0_resources[] = { + [0] = { + .start = LS1X_GPIO0_BASE, + .end = LS1X_GPIO0_BASE + SZ_4 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +struct platform_device ls1x_gpio0_pdev = { + .name = "ls1x-gpio", + .id = 0, + .num_resources = ARRAY_SIZE(ls1x_gpio0_resources), + .resource = ls1x_gpio0_resources, +}; + +static struct resource ls1x_gpio1_resources[] = { + [0] = { + .start = LS1X_GPIO1_BASE, + .end = LS1X_GPIO1_BASE + SZ_4 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +struct platform_device ls1x_gpio1_pdev = { + .name = "ls1x-gpio", + .id = 1, + .num_resources = ARRAY_SIZE(ls1x_gpio1_resources), + .resource = ls1x_gpio1_resources, +}; + +/* USB EHCI */ +static u64 ls1x_ehci_dmamask = DMA_BIT_MASK(32); + +static struct resource ls1x_ehci_resources[] = { + [0] = { + .start = LS1X_EHCI_BASE, + .end = LS1X_EHCI_BASE + SZ_32K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = LS1X_EHCI_IRQ, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct usb_ehci_pdata ls1x_ehci_pdata = { +}; + +struct platform_device ls1x_ehci_pdev = { + .name = "ehci-platform", + .id = -1, + .num_resources = ARRAY_SIZE(ls1x_ehci_resources), + .resource = ls1x_ehci_resources, + .dev = { + .dma_mask = &ls1x_ehci_dmamask, + .platform_data = &ls1x_ehci_pdata, + }, +}; + +/* Real Time Clock */ +struct platform_device ls1x_rtc_pdev = { + .name = "ls1x-rtc", + .id = -1, +}; + +/* Watchdog */ +static struct resource ls1x_wdt_resources[] = { + { + .start = LS1X_WDT_BASE, + .end = LS1X_WDT_BASE + SZ_16 - 1, + .flags = IORESOURCE_MEM, + }, +}; + +struct platform_device ls1x_wdt_pdev = { + .name = "ls1x-wdt", + .id = -1, + .num_resources = ARRAY_SIZE(ls1x_wdt_resources), + .resource = ls1x_wdt_resources, +}; diff --git a/arch/mips/loongson32/common/prom.c b/arch/mips/loongson32/common/prom.c new file mode 100644 index 0000000000..fc580a2274 --- /dev/null +++ b/arch/mips/loongson32/common/prom.c @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2011 Zhang, Keguang + * + * Modified from arch/mips/pnx833x/common/prom.c. + */ + +#include +#include +#include +#include +#include + +#include + +unsigned long memsize; + +void __init prom_init(void) +{ + void __iomem *uart_base; + + fw_init_cmdline(); + + memsize = fw_getenvl("memsize"); + if(!memsize) + memsize = DEFAULT_MEMSIZE; + + if (strstr(arcs_cmdline, "console=ttyS3")) + uart_base = ioremap(LS1X_UART3_BASE, 0x0f); + else if (strstr(arcs_cmdline, "console=ttyS2")) + uart_base = ioremap(LS1X_UART2_BASE, 0x0f); + else if (strstr(arcs_cmdline, "console=ttyS1")) + uart_base = ioremap(LS1X_UART1_BASE, 0x0f); + else + uart_base = ioremap(LS1X_UART0_BASE, 0x0f); + setup_8250_early_printk_port((unsigned long)uart_base, 0, 0); +} + +void __init plat_mem_setup(void) +{ + memblock_add(0x0, (memsize << 20)); +} diff --git a/arch/mips/loongson32/common/setup.c b/arch/mips/loongson32/common/setup.c new file mode 100644 index 0000000000..4733fe0371 --- /dev/null +++ b/arch/mips/loongson32/common/setup.c @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2011 Zhang, Keguang + */ + +#include +#include +#include +#include +#include + +const char *get_system_type(void) +{ + unsigned int processor_id = (¤t_cpu_data)->processor_id; + + switch (processor_id & PRID_REV_MASK) { + case PRID_REV_LOONGSON1B: +#if defined(CONFIG_LOONGSON1_LS1B) + return "LOONGSON LS1B"; +#elif defined(CONFIG_LOONGSON1_LS1C) + return "LOONGSON LS1C"; +#endif + default: + return "LOONGSON (unknown)"; + } +} diff --git a/arch/mips/loongson32/common/time.c b/arch/mips/loongson32/common/time.c new file mode 100644 index 0000000000..74ad2b1791 --- /dev/null +++ b/arch/mips/loongson32/common/time.c @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2014 Zhang, Keguang + */ + +#include +#include +#include + +void __init plat_time_init(void) +{ + struct clk *clk = NULL; + + /* initialize LS1X clocks */ + of_clk_init(NULL); + + /* setup mips r4k timer */ + clk = clk_get(NULL, "cpu_clk"); + if (IS_ERR(clk)) + panic("unable to get cpu clock, err=%ld", PTR_ERR(clk)); + + mips_hpt_frequency = clk_get_rate(clk) / 2; +} diff --git a/arch/mips/loongson32/ls1b/Makefile b/arch/mips/loongson32/ls1b/Makefile new file mode 100644 index 0000000000..33c574dc0f --- /dev/null +++ b/arch/mips/loongson32/ls1b/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Makefile for loongson1B based machines. +# + +obj-y += board.o diff --git a/arch/mips/loongson32/ls1b/board.c b/arch/mips/loongson32/ls1b/board.c new file mode 100644 index 0000000000..fed8d432ef --- /dev/null +++ b/arch/mips/loongson32/ls1b/board.c @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2011-2016 Zhang, Keguang + */ + +#include +#include +#include + +#include +#include +#include +#include + +static const struct gpio_led ls1x_gpio_leds[] __initconst = { + { + .name = "LED9", + .default_trigger = "heartbeat", + .gpio = 38, + .active_low = 1, + .default_state = LEDS_GPIO_DEFSTATE_OFF, + }, { + .name = "LED6", + .default_trigger = "nand-disk", + .gpio = 39, + .active_low = 1, + .default_state = LEDS_GPIO_DEFSTATE_OFF, + }, +}; + +static const struct gpio_led_platform_data ls1x_led_pdata __initconst = { + .num_leds = ARRAY_SIZE(ls1x_gpio_leds), + .leds = ls1x_gpio_leds, +}; + +static struct platform_device *ls1b_platform_devices[] __initdata = { + &ls1x_uart_pdev, + &ls1x_eth0_pdev, + &ls1x_eth1_pdev, + &ls1x_ehci_pdev, + &ls1x_gpio0_pdev, + &ls1x_gpio1_pdev, + &ls1x_rtc_pdev, + &ls1x_wdt_pdev, +}; + +static int __init ls1b_platform_init(void) +{ + ls1x_serial_set_uartclk(&ls1x_uart_pdev); + + gpio_led_register_device(-1, &ls1x_led_pdata); + + return platform_add_devices(ls1b_platform_devices, + ARRAY_SIZE(ls1b_platform_devices)); +} + +arch_initcall(ls1b_platform_init); diff --git a/arch/mips/loongson32/ls1c/Makefile b/arch/mips/loongson32/ls1c/Makefile new file mode 100644 index 0000000000..1cf3aa264d --- /dev/null +++ b/arch/mips/loongson32/ls1c/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Makefile for loongson1C based machines. +# + +obj-y += board.o diff --git a/arch/mips/loongson32/ls1c/board.c b/arch/mips/loongson32/ls1c/board.c new file mode 100644 index 0000000000..9dcfe9de55 --- /dev/null +++ b/arch/mips/loongson32/ls1c/board.c @@ -0,0 +1,23 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2016 Yang Ling + */ + +#include + +static struct platform_device *ls1c_platform_devices[] __initdata = { + &ls1x_uart_pdev, + &ls1x_eth0_pdev, + &ls1x_rtc_pdev, + &ls1x_wdt_pdev, +}; + +static int __init ls1c_platform_init(void) +{ + ls1x_serial_set_uartclk(&ls1x_uart_pdev); + + return platform_add_devices(ls1c_platform_devices, + ARRAY_SIZE(ls1c_platform_devices)); +} + +arch_initcall(ls1c_platform_init); -- cgit v1.2.3