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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-06 01:02:30 +0000 |
| commit | 76cb841cb886eef6b3bee341a2266c76578724ad (patch) | |
| tree | f5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/arm/mach-ks8695 | |
| parent | Initial commit. (diff) | |
| download | linux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip | |
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-ks8695')
32 files changed, 2753 insertions, 0 deletions
diff --git a/arch/arm/mach-ks8695/Kconfig b/arch/arm/mach-ks8695/Kconfig new file mode 100644 index 000000000..a545976bd --- /dev/null +++ b/arch/arm/mach-ks8695/Kconfig @@ -0,0 +1,87 @@ +if ARCH_KS8695 + +menu "Kendin/Micrel KS8695 Implementations" + +config MACH_KS8695 + bool "KS8695 development board" + select MIGHT_HAVE_PCI + help + Say 'Y' here if you want your kernel to run on the original + Kendin-Micrel KS8695 development board. + +config MACH_DSM320 + bool "DSM-320 Wireless Media Player" + help + Say 'Y' here if you want your kernel to run on the D-Link + DSM-320 Wireless Media Player. + +config MACH_ACS5K + bool "Brivo Systems LLC, ACS-5000 Master board" + help + say 'Y' here if you want your kernel to run on the Brivo + Systems LLC, ACS-5000 Master board. + +config MACH_LITE300 + bool "SecureComputing SG300" + help + Say 'Y' here if you want your kernel to support the + SecureComputing / SnapGear SG300 VPN Internet Router. + See http://www.securecomputing.com for more details. + +config MACH_SG310 + bool "McAfee SG310" + help + Say 'Y' here if you want your kernel to support the + McAfee / SnapGear SG310 VPN Internet Router. + See http://www.mcafee.com for more details. + +config MACH_SE4200 + bool "SecureComputing SE4200" + help + Say 'Y' here if you want your kernel to support the + SecureComputing / SnapGear SE4200 Secure Wireless VPN + Internet Router. + See http://www.securecomputing.com for more details. + +config MACH_CM4002 + bool "OpenGear CM4002" + help + Say 'Y' here if you want your kernel to support the OpenGear + CM4002 Secure Access Server. See http://www.opengear.com for + more details. + +config MACH_CM4008 + bool "OpenGear CM4008" + select MIGHT_HAVE_PCI + help + Say 'Y' here if you want your kernel to support the OpenGear + CM4008 Console Server. See http://www.opengear.com for more + details. + +config MACH_CM41xx + bool "OpenGear CM41xx" + select MIGHT_HAVE_PCI + help + Say 'Y' here if you want your kernel to support the OpenGear + CM4016 or CM4048 Console Servers. See http://www.opengear.com for + more details. + +config MACH_IM4004 + bool "OpenGear IM4004" + select MIGHT_HAVE_PCI + help + Say 'Y' here if you want your kernel to support the OpenGear + IM4004 Secure Access Server. See http://www.opengear.com for + more details. + +config MACH_IM42xx + bool "OpenGear IM42xx" + select MIGHT_HAVE_PCI + help + Say 'Y' here if you want your kernel to support the OpenGear + IM4216 or IM4248 Console Servers. See http://www.opengear.com for + more details. + +endmenu + +endif diff --git a/arch/arm/mach-ks8695/Makefile b/arch/arm/mach-ks8695/Makefile new file mode 100644 index 000000000..439b22255 --- /dev/null +++ b/arch/arm/mach-ks8695/Makefile @@ -0,0 +1,23 @@ +# SPDX-License-Identifier: GPL-2.0 +# arch/arm/mach-ks8695/Makefile +# +# Makefile for KS8695 architecture support +# + +obj-y := cpu.o irq.o time.o devices.o + +# PCI support is optional +obj-$(CONFIG_PCI) += pci.o + +# Board-specific support +obj-$(CONFIG_MACH_KS8695) += board-micrel.o +obj-$(CONFIG_MACH_DSM320) += board-dsm320.o +obj-$(CONFIG_MACH_ACS5K) += board-acs5k.o +obj-$(CONFIG_MACH_LITE300) += board-sg.o +obj-$(CONFIG_MACH_SG310) += board-sg.o +obj-$(CONFIG_MACH_SE4200) += board-sg.o +obj-$(CONFIG_MACH_CM4002) += board-og.o +obj-$(CONFIG_MACH_CM4008) += board-og.o +obj-$(CONFIG_MACH_CM41xx) += board-og.o +obj-$(CONFIG_MACH_IM4004) += board-og.o +obj-$(CONFIG_MACH_IM42xx) += board-og.o diff --git a/arch/arm/mach-ks8695/Makefile.boot b/arch/arm/mach-ks8695/Makefile.boot new file mode 100644 index 000000000..c9b0bebcf --- /dev/null +++ b/arch/arm/mach-ks8695/Makefile.boot @@ -0,0 +1,8 @@ +# Note: the following conditions must always be true: +# ZRELADDR == virt_to_phys(TEXTADDR) +# PARAMS_PHYS must be within 4MB of ZRELADDR +# INITRD_PHYS must be in RAM + + zreladdr-y += 0x00008000 +params_phys-y := 0x00000100 +initrd_phys-y := 0x00800000 diff --git a/arch/arm/mach-ks8695/board-acs5k.c b/arch/arm/mach-ks8695/board-acs5k.c new file mode 100644 index 000000000..578306222 --- /dev/null +++ b/arch/arm/mach-ks8695/board-acs5k.c @@ -0,0 +1,241 @@ +/* + * arch/arm/mach-ks8695/board-acs5k.c + * + * Brivo Systems LLC, ACS-5000 Master Board + * + * Copyright 2008 Simtec Electronics + * Daniel Silverstone <dsilvers@simtec.co.uk> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/gpio.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/gpio/machine.h> +#include <linux/i2c.h> +#include <linux/i2c-algo-bit.h> +#include <linux/platform_data/i2c-gpio.h> +#include <linux/platform_data/pca953x.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/physmap.h> +#include <linux/mtd/partitions.h> + +#include <asm/mach-types.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include "devices.h" +#include <mach/gpio-ks8695.h> + +#include "generic.h" + +static struct gpiod_lookup_table acs5k_i2c_gpiod_table = { + .dev_id = "i2c-gpio", + .table = { + GPIO_LOOKUP_IDX("KS8695", 4, NULL, 0, + GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), + GPIO_LOOKUP_IDX("KS8695", 5, NULL, 1, + GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), + }, +}; + +static struct i2c_gpio_platform_data acs5k_i2c_device_platdata = { + .udelay = 10, +}; + +static struct platform_device acs5k_i2c_device = { + .name = "i2c-gpio", + .id = -1, + .num_resources = 0, + .resource = NULL, + .dev = { + .platform_data = &acs5k_i2c_device_platdata, + }, +}; + +static int acs5k_pca9555_setup(struct i2c_client *client, + unsigned gpio_base, unsigned ngpio, + void *context) +{ + static int acs5k_gpio_value[] = { + -1, -1, -1, -1, -1, -1, -1, 0, 1, 1, -1, 0, 1, 0, -1, -1 + }; + int n; + + for (n = 0; n < ARRAY_SIZE(acs5k_gpio_value); ++n) { + gpio_request(gpio_base + n, "ACS-5000 GPIO Expander"); + if (acs5k_gpio_value[n] < 0) + gpio_direction_input(gpio_base + n); + else + gpio_direction_output(gpio_base + n, + acs5k_gpio_value[n]); + gpio_export(gpio_base + n, 0); /* Export, direction locked down */ + } + + return 0; +} + +static struct pca953x_platform_data acs5k_i2c_pca9555_platdata = { + .gpio_base = 16, /* Start directly after the CPU's GPIO */ + .invert = 0, /* Do not invert */ + .setup = acs5k_pca9555_setup, +}; + +static struct i2c_board_info acs5k_i2c_devs[] __initdata = { + { + I2C_BOARD_INFO("pcf8563", 0x51), + }, + { + I2C_BOARD_INFO("pca9555", 0x20), + .platform_data = &acs5k_i2c_pca9555_platdata, + }, +}; + +static void __init acs5k_i2c_init(void) +{ + /* The gpio interface */ + gpiod_add_lookup_table(&acs5k_i2c_gpiod_table); + platform_device_register(&acs5k_i2c_device); + /* I2C devices */ + i2c_register_board_info(0, acs5k_i2c_devs, + ARRAY_SIZE(acs5k_i2c_devs)); +} + +static struct mtd_partition acs5k_nor_partitions[] = { + [0] = { + .name = "Boot Agent and config", + .size = SZ_256K, + .offset = 0, + .mask_flags = MTD_WRITEABLE, + }, + [1] = { + .name = "Kernel", + .size = SZ_1M, + .offset = SZ_256K, + }, + [2] = { + .name = "SquashFS1", + .size = SZ_2M, + .offset = SZ_256K + SZ_1M, + }, + [3] = { + .name = "SquashFS2", + .size = SZ_4M + SZ_2M, + .offset = SZ_256K + SZ_1M + SZ_2M, + }, + [4] = { + .name = "Data", + .size = SZ_16M + SZ_4M + SZ_2M + SZ_512K, /* 22.5 MB */ + .offset = SZ_256K + SZ_8M + SZ_1M, + } +}; + +static struct physmap_flash_data acs5k_nor_pdata = { + .width = 4, + .nr_parts = ARRAY_SIZE(acs5k_nor_partitions), + .parts = acs5k_nor_partitions, +}; + +static struct resource acs5k_nor_resource[] = { + [0] = { + .start = SZ_32M, /* We expect the bootloader to map + * the flash here. + */ + .end = SZ_32M + SZ_16M - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = SZ_32M + SZ_16M, + .end = SZ_32M + SZ_32M - SZ_256K - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device acs5k_device_nor = { + .name = "physmap-flash", + .id = -1, + .num_resources = ARRAY_SIZE(acs5k_nor_resource), + .resource = acs5k_nor_resource, + .dev = { + .platform_data = &acs5k_nor_pdata, + }, +}; + +static void __init acs5k_register_nor(void) +{ + int ret; + + if (acs5k_nor_partitions[0].mask_flags == 0) + printk(KERN_WARNING "Warning: Unprotecting bootloader and configuration partition\n"); + + ret = platform_device_register(&acs5k_device_nor); + if (ret < 0) + printk(KERN_ERR "failed to register physmap-flash device\n"); +} + +static int __init acs5k_protection_setup(char *s) +{ + /* We can't allocate anything here but we should be able + * to trivially parse s and decide if we can protect the + * bootloader partition or not + */ + if (strcmp(s, "no") == 0) + acs5k_nor_partitions[0].mask_flags = 0; + + return 1; +} + +__setup("protect_bootloader=", acs5k_protection_setup); + +static void __init acs5k_init_gpio(void) +{ + int i; + + ks8695_register_gpios(); + for (i = 0; i < 4; ++i) + gpio_request(i, "ACS5K IRQ"); + gpio_request(7, "ACS5K KS_FRDY"); + for (i = 8; i < 16; ++i) + gpio_request(i, "ACS5K Unused"); + + gpio_request(3, "ACS5K CAN Control"); + gpio_request(6, "ACS5K Heartbeat"); + gpio_direction_output(3, 1); /* Default CAN_RESET high */ + gpio_direction_output(6, 0); /* Default KS8695_ACTIVE low */ + gpio_export(3, 0); /* export CAN_RESET as output only */ + gpio_export(6, 0); /* export KS8695_ACTIVE as output only */ +} + +static void __init acs5k_init(void) +{ + acs5k_init_gpio(); + + /* Network device */ + ks8695_add_device_lan(); /* eth0 = LAN */ + ks8695_add_device_wan(); /* ethX = WAN */ + + /* NOR devices */ + acs5k_register_nor(); + + /* I2C bus */ + acs5k_i2c_init(); +} + +MACHINE_START(ACS5K, "Brivo Systems LLC ACS-5000 Master board") + /* Maintainer: Simtec Electronics. */ + .atag_offset = 0x100, + .map_io = ks8695_map_io, + .init_irq = ks8695_init_irq, + .init_machine = acs5k_init, + .init_time = ks8695_timer_init, + .restart = ks8695_restart, +MACHINE_END diff --git a/arch/arm/mach-ks8695/board-dsm320.c b/arch/arm/mach-ks8695/board-dsm320.c new file mode 100644 index 000000000..13537e9c5 --- /dev/null +++ b/arch/arm/mach-ks8695/board-dsm320.c @@ -0,0 +1,130 @@ +/* + * arch/arm/mach-ks8695/board-dsm320.c + * + * DSM-320 D-Link Wireless Media Player, board support. + * + * Copyright 2008 Simtec Electronics + * Daniel Silverstone <dsilvers@simtec.co.uk> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/gpio.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/platform_device.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/physmap.h> +#include <linux/mtd/partitions.h> + +#include <asm/mach-types.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include "devices.h" +#include <mach/gpio-ks8695.h> + +#include "generic.h" + +#ifdef CONFIG_PCI +static int dsm320_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + switch (slot) { + case 0: + /* PCI-AHB bridge? */ + return KS8695_IRQ_EXTERN0; + case 18: + /* Mini PCI slot */ + return KS8695_IRQ_EXTERN2; + case 20: + /* RealMAGIC chip */ + return KS8695_IRQ_EXTERN0; + } + BUG(); +} + +static struct ks8695_pci_cfg __initdata dsm320_pci = { + .mode = KS8695_MODE_MINIPCI, + .map_irq = dsm320_pci_map_irq, +}; + +static void __init dsm320_register_pci(void) +{ + /* Initialise the GPIO lines for interrupt mode */ + /* RealMAGIC */ + ks8695_gpio_interrupt(KS8695_GPIO_0, IRQ_TYPE_LEVEL_LOW); + /* MiniPCI Slot */ + ks8695_gpio_interrupt(KS8695_GPIO_2, IRQ_TYPE_LEVEL_LOW); + + ks8695_init_pci(&dsm320_pci); +} + +#else +static inline void __init dsm320_register_pci(void) { } +#endif + +static struct physmap_flash_data dsm320_nor_pdata = { + .width = 4, + .nr_parts = 0, +}; + +static struct resource dsm320_nor_resource[] = { + [0] = { + .start = SZ_32M, /* We expect the bootloader to map + * the flash here. + */ + .end = SZ_32M + SZ_4M - 1, + .flags = IORESOURCE_MEM, + } +}; + +static struct platform_device dsm320_device_nor = { + .name = "physmap-flash", + .id = -1, + .num_resources = ARRAY_SIZE(dsm320_nor_resource), + .resource = dsm320_nor_resource, + .dev = { + .platform_data = &dsm320_nor_pdata, + }, +}; + +void __init dsm320_register_nor(void) +{ + int ret; + + ret = platform_device_register(&dsm320_device_nor); + if (ret < 0) + printk(KERN_ERR "failed to register physmap-flash device\n"); +} + +static void __init dsm320_init(void) +{ + /* GPIO registration */ + ks8695_register_gpios(); + + /* PCI registration */ + dsm320_register_pci(); + + /* Network device */ + ks8695_add_device_lan(); /* eth0 = LAN */ + + /* NOR devices */ + dsm320_register_nor(); +} + +MACHINE_START(DSM320, "D-Link DSM-320 Wireless Media Player") + /* Maintainer: Simtec Electronics. */ + .atag_offset = 0x100, + .map_io = ks8695_map_io, + .init_irq = ks8695_init_irq, + .init_machine = dsm320_init, + .init_time = ks8695_timer_init, + .restart = ks8695_restart, +MACHINE_END diff --git a/arch/arm/mach-ks8695/board-micrel.c b/arch/arm/mach-ks8695/board-micrel.c new file mode 100644 index 000000000..69cfb9935 --- /dev/null +++ b/arch/arm/mach-ks8695/board-micrel.c @@ -0,0 +1,62 @@ +/* + * arch/arm/mach-ks8695/board-micrel.c + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/gpio.h> +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/platform_device.h> + +#include <asm/mach-types.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <mach/gpio-ks8695.h> +#include "devices.h" + +#include "generic.h" + +#ifdef CONFIG_PCI +static int micrel_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + return KS8695_IRQ_EXTERN0; +} + +static struct ks8695_pci_cfg __initdata micrel_pci = { + .mode = KS8695_MODE_MINIPCI, + .map_irq = micrel_pci_map_irq, +}; +#endif + + +static void __init micrel_init(void) +{ + printk(KERN_INFO "Micrel KS8695 Development Board initializing\n"); + + ks8695_register_gpios(); + +#ifdef CONFIG_PCI + ks8695_init_pci(&micrel_pci); +#endif + + /* Add devices */ + ks8695_add_device_wan(); /* eth0 = WAN */ + ks8695_add_device_lan(); /* eth1 = LAN */ +} + +MACHINE_START(KS8695, "KS8695 Centaur Development Board") + /* Maintainer: Micrel Semiconductor Inc. */ + .atag_offset = 0x100, + .map_io = ks8695_map_io, + .init_irq = ks8695_init_irq, + .init_machine = micrel_init, + .init_time = ks8695_timer_init, + .restart = ks8695_restart, +MACHINE_END diff --git a/arch/arm/mach-ks8695/board-og.c b/arch/arm/mach-ks8695/board-og.c new file mode 100644 index 000000000..478ebd1f2 --- /dev/null +++ b/arch/arm/mach-ks8695/board-og.c @@ -0,0 +1,200 @@ +/* + * board-og.c -- support for the OpenGear KS8695 based boards. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/platform_device.h> +#include <linux/serial_8250.h> +#include <linux/gpio.h> +#include <linux/irq.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include "devices.h" +#include <mach/regs-gpio.h> +#include <mach/gpio-ks8695.h> +#include "generic.h" + +static int og_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) +{ + if (machine_is_im4004() && (slot == 8)) + return KS8695_IRQ_EXTERN1; + return KS8695_IRQ_EXTERN0; +} + +static struct ks8695_pci_cfg __initdata og_pci = { + .mode = KS8695_MODE_PCI, + .map_irq = og_pci_map_irq, +}; + +static void __init og_register_pci(void) +{ + /* Initialize the GPIO lines for interrupt mode */ + ks8695_gpio_interrupt(KS8695_GPIO_0, IRQ_TYPE_LEVEL_LOW); + + /* Cardbus Slot */ + if (machine_is_im4004()) + ks8695_gpio_interrupt(KS8695_GPIO_1, IRQ_TYPE_LEVEL_LOW); + + if (IS_ENABLED(CONFIG_PCI)) + ks8695_init_pci(&og_pci); +} + +/* + * The PCI bus reset is driven by a dedicated GPIO line. Toggle it here + * and bring the PCI bus out of reset. + */ +static void __init og_pci_bus_reset(void) +{ + unsigned int rstline = 1; + + /* Some boards use a different GPIO as the PCI reset line */ + if (machine_is_im4004()) + rstline = 2; + else if (machine_is_im42xx()) + rstline = 0; + + gpio_request(rstline, "PCI reset"); + gpio_direction_output(rstline, 0); + + /* Drive a reset on the PCI reset line */ + gpio_set_value(rstline, 1); + gpio_set_value(rstline, 0); + mdelay(100); + gpio_set_value(rstline, 1); + mdelay(100); +} + +/* + * Direct connect serial ports (non-PCI that is). + */ +#define S8250_PHYS 0x03800000 +#define S8250_VIRT 0xf4000000 +#define S8250_SIZE 0x00100000 + +static struct map_desc og_io_desc[] __initdata = { + { + .virtual = S8250_VIRT, + .pfn = __phys_to_pfn(S8250_PHYS), + .length = S8250_SIZE, + .type = MT_DEVICE, + } +}; + +static struct resource og_uart_resources[] = { + { + .start = S8250_VIRT, + .end = S8250_VIRT + S8250_SIZE, + .flags = IORESOURCE_MEM + }, +}; + +static struct plat_serial8250_port og_uart_data[] = { + { + .mapbase = S8250_VIRT, + .membase = (char *) S8250_VIRT, + .irq = 3, + .flags = UPF_BOOT_AUTOCONF | UPF_SKIP_TEST, + .iotype = UPIO_MEM, + .regshift = 2, + .uartclk = 115200 * 16, + }, + { }, +}; + +static struct platform_device og_uart = { + .name = "serial8250", + .id = 0, + .dev.platform_data = og_uart_data, + .num_resources = 1, + .resource = og_uart_resources +}; + +static struct platform_device *og_devices[] __initdata = { + &og_uart +}; + +static void __init og_init(void) +{ + ks8695_register_gpios(); + + if (machine_is_cm4002()) { + ks8695_gpio_interrupt(KS8695_GPIO_1, IRQ_TYPE_LEVEL_HIGH); + iotable_init(og_io_desc, ARRAY_SIZE(og_io_desc)); + platform_add_devices(og_devices, ARRAY_SIZE(og_devices)); + } else { + og_pci_bus_reset(); + og_register_pci(); + } + + ks8695_add_device_lan(); + ks8695_add_device_wan(); +} + +#ifdef CONFIG_MACH_CM4002 +MACHINE_START(CM4002, "OpenGear/CM4002") + /* OpenGear Inc. */ + .atag_offset = 0x100, + .map_io = ks8695_map_io, + .init_irq = ks8695_init_irq, + .init_machine = og_init, + .init_time = ks8695_timer_init, + .restart = ks8695_restart, +MACHINE_END +#endif + +#ifdef CONFIG_MACH_CM4008 +MACHINE_START(CM4008, "OpenGear/CM4008") + /* OpenGear Inc. */ + .atag_offset = 0x100, + .map_io = ks8695_map_io, + .init_irq = ks8695_init_irq, + .init_machine = og_init, + .init_time = ks8695_timer_init, + .restart = ks8695_restart, +MACHINE_END +#endif + +#ifdef CONFIG_MACH_CM41xx +MACHINE_START(CM41XX, "OpenGear/CM41xx") + /* OpenGear Inc. */ + .atag_offset = 0x100, + .map_io = ks8695_map_io, + .init_irq = ks8695_init_irq, + .init_machine = og_init, + .init_time = ks8695_timer_init, + .restart = ks8695_restart, +MACHINE_END +#endif + +#ifdef CONFIG_MACH_IM4004 +MACHINE_START(IM4004, "OpenGear/IM4004") + /* OpenGear Inc. */ + .atag_offset = 0x100, + .map_io = ks8695_map_io, + .init_irq = ks8695_init_irq, + .init_machine = og_init, + .init_time = ks8695_timer_init, + .restart = ks8695_restart, +MACHINE_END +#endif + +#ifdef CONFIG_MACH_IM42xx +MACHINE_START(IM42XX, "OpenGear/IM42xx") + /* OpenGear Inc. */ + .atag_offset = 0x100, + .map_io = ks8695_map_io, + .init_irq = ks8695_init_irq, + .init_machine = og_init, + .init_time = ks8695_timer_init, + .restart = ks8695_restart, +MACHINE_END +#endif diff --git a/arch/arm/mach-ks8695/board-sg.c b/arch/arm/mach-ks8695/board-sg.c new file mode 100644 index 000000000..46e455c38 --- /dev/null +++ b/arch/arm/mach-ks8695/board-sg.c @@ -0,0 +1,121 @@ +/* + * board-sg.c -- support for the SnapGear KS8695 based boards + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/map.h> +#include <linux/mtd/physmap.h> +#include <linux/mtd/partitions.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include "devices.h" +#include "generic.h" + +/* + * The SG310 machine type is fitted with a conventional 8MB Strataflash + * device. Define its partitioning. + */ +#define FL_BASE 0x02000000 +#define FL_SIZE SZ_8M + +static struct mtd_partition sg_mtd_partitions[] = { + [0] = { + .name = "SnapGear Boot Loader", + .size = SZ_128K, + }, + [1] = { + .name = "SnapGear non-volatile configuration", + .size = SZ_512K, + .offset = SZ_256K, + }, + [2] = { + .name = "SnapGear image", + .offset = SZ_512K + SZ_256K, + }, + [3] = { + .name = "SnapGear StrataFlash", + }, + [4] = { + .name = "SnapGear Boot Tags", + .size = SZ_128K, + .offset = SZ_128K, + }, +}; + +static struct physmap_flash_data sg_mtd_pdata = { + .width = 1, + .nr_parts = ARRAY_SIZE(sg_mtd_partitions), + .parts = sg_mtd_partitions, +}; + + +static struct resource sg_mtd_resource[] = { + [0] = { + .start = FL_BASE, + .end = FL_BASE + FL_SIZE - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device sg_mtd_device = { + .name = "physmap-flash", + .id = 0, + .num_resources = ARRAY_SIZE(sg_mtd_resource), + .resource = sg_mtd_resource, + .dev = { + .platform_data = &sg_mtd_pdata, + }, +}; + +static void __init sg_init(void) +{ + ks8695_add_device_lan(); + ks8695_add_device_wan(); + + if (machine_is_sg310()) + platform_device_register(&sg_mtd_device); +} + +#ifdef CONFIG_MACH_LITE300 +MACHINE_START(LITE300, "SecureComputing/SG300") + /* SnapGear */ + .atag_offset = 0x100, + .map_io = ks8695_map_io, + .init_irq = ks8695_init_irq, + .init_machine = sg_init, + .init_time = ks8695_timer_init, + .restart = ks8695_restart, +MACHINE_END +#endif + +#ifdef CONFIG_MACH_SG310 +MACHINE_START(SG310, "McAfee/SG310") + /* SnapGear */ + .atag_offset = 0x100, + .map_io = ks8695_map_io, + .init_irq = ks8695_init_irq, + .init_machine = sg_init, + .init_time = ks8695_timer_init, + .restart = ks8695_restart, +MACHINE_END +#endif + +#ifdef CONFIG_MACH_SE4200 +MACHINE_START(SE4200, "SecureComputing/SE4200") + /* SnapGear */ + .atag_offset = 0x100, + .map_io = ks8695_map_io, + .init_irq = ks8695_init_irq, + .init_machine = sg_init, + .init_time = ks8695_timer_init, + .restart = ks8695_restart, +MACHINE_END +#endif diff --git a/arch/arm/mach-ks8695/cpu.c b/arch/arm/mach-ks8695/cpu.c new file mode 100644 index 000000000..7a1c4caa1 --- /dev/null +++ b/arch/arm/mach-ks8695/cpu.c @@ -0,0 +1,73 @@ +/* + * arch/arm/mach-ks8695/cpu.c + * + * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> + * Copyright (C) 2006 Simtec Electronics + * + * KS8695 CPU support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/io.h> + +#include <mach/hardware.h> +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include "regs-sys.h" +#include <mach/regs-misc.h> + + +static struct map_desc ks8695_io_desc[] __initdata = { + { + .virtual = (unsigned long)KS8695_IO_VA, + .pfn = __phys_to_pfn(KS8695_IO_PA), + .length = KS8695_IO_SIZE, + .type = MT_DEVICE, + } +}; + +static void __init ks8695_processor_info(void) +{ + unsigned long id, rev; + + id = __raw_readl(KS8695_MISC_VA + KS8695_DID); + rev = __raw_readl(KS8695_MISC_VA + KS8695_RID); + + printk("KS8695 ID=%04lx SubID=%02lx Revision=%02lx\n", (id & DID_ID), (rev & RID_SUBID), (rev & RID_REVISION)); +} + +static unsigned int sysclk[8] = { 125000000, 100000000, 62500000, 50000000, 41700000, 33300000, 31300000, 25000000 }; +static unsigned int cpuclk[8] = { 166000000, 166000000, 83000000, 83000000, 55300000, 55300000, 41500000, 41500000 }; + +static void __init ks8695_clock_info(void) +{ + unsigned int scdc = __raw_readl(KS8695_SYS_VA + KS8695_CLKCON) & CLKCON_SCDC; + + printk("Clocks: System %u MHz, CPU %u MHz\n", + sysclk[scdc] / 1000000, cpuclk[scdc] / 1000000); +} + +void __init ks8695_map_io(void) +{ + iotable_init(ks8695_io_desc, ARRAY_SIZE(ks8695_io_desc)); + + ks8695_processor_info(); + ks8695_clock_info(); +} diff --git a/arch/arm/mach-ks8695/devices.c b/arch/arm/mach-ks8695/devices.c new file mode 100644 index 000000000..61cf20beb --- /dev/null +++ b/arch/arm/mach-ks8695/devices.c @@ -0,0 +1,197 @@ +/* + * arch/arm/mach-ks8695/devices.c + * + * Copyright (C) 2006 Andrew Victor + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> + +#include <linux/gpio.h> +#include <linux/platform_device.h> + +#include <mach/irqs.h> +#include "regs-wan.h" +#include "regs-lan.h" +#include "regs-hpna.h" +#include <mach/regs-switch.h> +#include <mach/regs-misc.h> + + +/* -------------------------------------------------------------------- + * Ethernet + * -------------------------------------------------------------------- */ + +static u64 eth_dmamask = 0xffffffffUL; + +static struct resource ks8695_wan_resources[] = { + [0] = { + .start = KS8695_WAN_PA, + .end = KS8695_WAN_PA + 0x00ff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .name = "WAN RX", + .start = KS8695_IRQ_WAN_RX_STATUS, + .end = KS8695_IRQ_WAN_RX_STATUS, + .flags = IORESOURCE_IRQ, + }, + [2] = { + .name = "WAN TX", + .start = KS8695_IRQ_WAN_TX_STATUS, + .end = KS8695_IRQ_WAN_TX_STATUS, + .flags = IORESOURCE_IRQ, + }, + [3] = { + .name = "WAN Link", + .start = KS8695_IRQ_WAN_LINK, + .end = KS8695_IRQ_WAN_LINK, + .flags = IORESOURCE_IRQ, + }, + [4] = { + .name = "WAN PHY", + .start = KS8695_MISC_PA, + .end = KS8695_MISC_PA + 0x1f, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device ks8695_wan_device = { + .name = "ks8695_ether", + .id = 0, + .dev = { + .dma_mask = ð_dmamask, + .coherent_dma_mask = 0xffffffff, + }, + .resource = ks8695_wan_resources, + .num_resources = ARRAY_SIZE(ks8695_wan_resources), +}; + + +static struct resource ks8695_lan_resources[] = { + [0] = { + .start = KS8695_LAN_PA, + .end = KS8695_LAN_PA + 0x00ff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .name = "LAN RX", + .start = KS8695_IRQ_LAN_RX_STATUS, + .end = KS8695_IRQ_LAN_RX_STATUS, + .flags = IORESOURCE_IRQ, + }, + [2] = { + .name = "LAN TX", + .start = KS8695_IRQ_LAN_TX_STATUS, + .end = KS8695_IRQ_LAN_TX_STATUS, + .flags = IORESOURCE_IRQ, + }, + [3] = { + .name = "LAN SWITCH", + .start = KS8695_SWITCH_PA, + .end = KS8695_SWITCH_PA + 0x4f, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device ks8695_lan_device = { + .name = "ks8695_ether", + .id = 1, + .dev = { + .dma_mask = ð_dmamask, + .coherent_dma_mask = 0xffffffff, + }, + .resource = ks8695_lan_resources, + .num_resources = ARRAY_SIZE(ks8695_lan_resources), +}; + + +static struct resource ks8695_hpna_resources[] = { + [0] = { + .start = KS8695_HPNA_PA, + .end = KS8695_HPNA_PA + 0x00ff, + .flags = IORESOURCE_MEM, + }, + [1] = { + .name = "HPNA RX", + .start = KS8695_IRQ_HPNA_RX_STATUS, + .end = KS8695_IRQ_HPNA_RX_STATUS, + .flags = IORESOURCE_IRQ, + }, + [2] = { + .name = "HPNA TX", + .start = KS8695_IRQ_HPNA_TX_STATUS, + .end = KS8695_IRQ_HPNA_TX_STATUS, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device ks8695_hpna_device = { + .name = "ks8695_ether", + .id = 2, + .dev = { + .dma_mask = ð_dmamask, + .coherent_dma_mask = 0xffffffff, + }, + .resource = ks8695_hpna_resources, + .num_resources = ARRAY_SIZE(ks8695_hpna_resources), +}; + +void __init ks8695_add_device_wan(void) +{ + platform_device_register(&ks8695_wan_device); +} + +void __init ks8695_add_device_lan(void) +{ + platform_device_register(&ks8695_lan_device); +} + +void __init ks8696_add_device_hpna(void) +{ + platform_device_register(&ks8695_hpna_device); +} + + +/* -------------------------------------------------------------------- + * Watchdog + * -------------------------------------------------------------------- */ + +static struct platform_device ks8695_wdt_device = { + .name = "ks8695_wdt", + .id = -1, + .num_resources = 0, +}; + +static void __init ks8695_add_device_watchdog(void) +{ + platform_device_register(&ks8695_wdt_device); +} + + +/* -------------------------------------------------------------------- */ + +/* + * These devices are always present and don't need any board-specific + * setup. + */ +static int __init ks8695_add_standard_devices(void) +{ + ks8695_add_device_watchdog(); + return 0; +} + +arch_initcall(ks8695_add_standard_devices); diff --git a/arch/arm/mach-ks8695/devices.h b/arch/arm/mach-ks8695/devices.h new file mode 100644 index 000000000..1e6594a0f --- /dev/null +++ b/arch/arm/mach-ks8695/devices.h @@ -0,0 +1,32 @@ +/* + * arch/arm/mach-ks8695/include/mach/devices.h + * + * Copyright (C) 2006 Andrew Victor + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_DEVICES_H +#define __ASM_ARCH_DEVICES_H + +#include <linux/pci.h> + + /* Ethernet */ +extern void __init ks8695_add_device_wan(void); +extern void __init ks8695_add_device_lan(void); +extern void __init ks8695_add_device_hpna(void); + + /* PCI */ +#define KS8695_MODE_PCI 0 +#define KS8695_MODE_MINIPCI 1 +#define KS8695_MODE_CARDBUS 2 + +struct ks8695_pci_cfg { + short mode; + int (*map_irq)(const struct pci_dev *, u8, u8); +}; +extern __init void ks8695_init_pci(struct ks8695_pci_cfg *); + +#endif diff --git a/arch/arm/mach-ks8695/generic.h b/arch/arm/mach-ks8695/generic.h new file mode 100644 index 000000000..43253f8e6 --- /dev/null +++ b/arch/arm/mach-ks8695/generic.h @@ -0,0 +1,16 @@ +/* + * arch/arm/mach-ks8695/generic.h + * + * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> + * Copyright (C) 2006 Simtec Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. +*/ + +extern __init void ks8695_map_io(void); +extern __init void ks8695_init_irq(void); +extern void ks8695_restart(enum reboot_mode, const char *); +extern void ks8695_timer_init(void); diff --git a/arch/arm/mach-ks8695/include/mach/entry-macro.S b/arch/arm/mach-ks8695/include/mach/entry-macro.S new file mode 100644 index 000000000..8315b34f3 --- /dev/null +++ b/arch/arm/mach-ks8695/include/mach/entry-macro.S @@ -0,0 +1,47 @@ +/* + * arch/arm/mach-ks8695/include/mach/entry-macro.S + * + * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> + * Copyright (C) 2006 Simtec Electronics + * + * Low-level IRQ helper macros for KS8695 + * + * 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 <mach/hardware.h> +#include <mach/regs-irq.h> + + .macro get_irqnr_preamble, base, tmp + ldr \base, =KS8695_IRQ_VA @ Base address of interrupt controller + .endm + + .macro get_irqnr_and_base, irqnr, irqstat, base, tmp + ldr \irqstat, [\base, #KS8695_INTMS] @ Mask Status register + + teq \irqstat, #0 + beq 1001f + + mov \irqnr, #0 + + tst \irqstat, #0xff + moveq \irqstat, \irqstat, lsr #8 + addeq \irqnr, \irqnr, #8 + tsteq \irqstat, #0xff + moveq \irqstat, \irqstat, lsr #8 + addeq \irqnr, \irqnr, #8 + tsteq \irqstat, #0xff + moveq \irqstat, \irqstat, lsr #8 + addeq \irqnr, \irqnr, #8 + tst \irqstat, #0x0f + moveq \irqstat, \irqstat, lsr #4 + addeq \irqnr, \irqnr, #4 + tst \irqstat, #0x03 + moveq \irqstat, \irqstat, lsr #2 + addeq \irqnr, \irqnr, #2 + tst \irqstat, #0x01 + addeqs \irqnr, \irqnr, #1 +1001: + .endm diff --git a/arch/arm/mach-ks8695/include/mach/gpio-ks8695.h b/arch/arm/mach-ks8695/include/mach/gpio-ks8695.h new file mode 100644 index 000000000..6eb034d60 --- /dev/null +++ b/arch/arm/mach-ks8695/include/mach/gpio-ks8695.h @@ -0,0 +1,39 @@ +/* + * Copyright (C) 2006 Andrew Victor + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __MACH_KS8659_GPIO_H +#define __MACH_KS8659_GPIO_H + +#include <linux/kernel.h> + +#define KS8695_GPIO_0 0 +#define KS8695_GPIO_1 1 +#define KS8695_GPIO_2 2 +#define KS8695_GPIO_3 3 +#define KS8695_GPIO_4 4 +#define KS8695_GPIO_5 5 +#define KS8695_GPIO_6 6 +#define KS8695_GPIO_7 7 +#define KS8695_GPIO_8 8 +#define KS8695_GPIO_9 9 +#define KS8695_GPIO_10 10 +#define KS8695_GPIO_11 11 +#define KS8695_GPIO_12 12 +#define KS8695_GPIO_13 13 +#define KS8695_GPIO_14 14 +#define KS8695_GPIO_15 15 + +/* + * Configure GPIO pin as external interrupt source. + */ +extern int ks8695_gpio_interrupt(unsigned int pin, unsigned int type); + +/* Register the GPIOs */ +extern void ks8695_register_gpios(void); + +#endif /* __MACH_KS8659_GPIO_H */ diff --git a/arch/arm/mach-ks8695/include/mach/hardware.h b/arch/arm/mach-ks8695/include/mach/hardware.h new file mode 100644 index 000000000..959c748ee --- /dev/null +++ b/arch/arm/mach-ks8695/include/mach/hardware.h @@ -0,0 +1,45 @@ +/* + * arch/arm/mach-ks8695/include/mach/hardware.h + * + * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> + * Copyright (C) 2006 Simtec Electronics + * + * KS8695 - Memory Map definitions + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef __ASM_ARCH_HARDWARE_H +#define __ASM_ARCH_HARDWARE_H + +#include <asm/sizes.h> + +/* + * Clocks are derived from MCLK, which is 25MHz + */ +#define KS8695_CLOCK_RATE 25000000 + +/* + * Physical RAM address. + */ +#define KS8695_SDRAM_PA 0x00000000 + + +/* + * We map an entire MiB with the System Configuration Registers in even + * though only 64KiB is needed. This makes it easier for use with the + * head debug code as the initial MMU setup only deals in L1 sections. + */ +#define KS8695_IO_PA 0x03F00000 +#define KS8695_IO_VA IOMEM(0xF0000000) +#define KS8695_IO_SIZE SZ_1M + +#define KS8695_PCIMEM_PA 0x60000000 +#define KS8695_PCIMEM_SIZE SZ_512M + +#define KS8695_PCIIO_PA 0x80000000 +#define KS8695_PCIIO_SIZE SZ_64K + +#endif diff --git a/arch/arm/mach-ks8695/include/mach/irqs.h b/arch/arm/mach-ks8695/include/mach/irqs.h new file mode 100644 index 000000000..86fc9e6ce --- /dev/null +++ b/arch/arm/mach-ks8695/include/mach/irqs.h @@ -0,0 +1,54 @@ +/* + * arch/arm/mach-ks8695/include/mach/irqs.h + * + * Copyright (C) 2006 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_IRQS_H +#define __ASM_ARCH_IRQS_H + + +#define NR_IRQS 32 + +/* + * IRQ definitions + */ +#define KS8695_IRQ_COMM_RX 0 +#define KS8695_IRQ_COMM_TX 1 +#define KS8695_IRQ_EXTERN0 2 +#define KS8695_IRQ_EXTERN1 3 +#define KS8695_IRQ_EXTERN2 4 +#define KS8695_IRQ_EXTERN3 5 +#define KS8695_IRQ_TIMER0 6 +#define KS8695_IRQ_TIMER1 7 +#define KS8695_IRQ_UART_TX 8 +#define KS8695_IRQ_UART_RX 9 +#define KS8695_IRQ_UART_LINE_STATUS 10 +#define KS8695_IRQ_UART_MODEM_STATUS 11 +#define KS8695_IRQ_LAN_RX_STOP 12 +#define KS8695_IRQ_LAN_TX_STOP 13 +#define KS8695_IRQ_LAN_RX_BUF 14 +#define KS8695_IRQ_LAN_TX_BUF 15 +#define KS8695_IRQ_LAN_RX_STATUS 16 +#define KS8695_IRQ_LAN_TX_STATUS 17 +#define KS8695_IRQ_HPNA_RX_STOP 18 +#define KS8695_IRQ_HPNA_TX_STOP 19 +#define KS8695_IRQ_HPNA_RX_BUF 20 +#define KS8695_IRQ_HPNA_TX_BUF 21 +#define KS8695_IRQ_HPNA_RX_STATUS 22 +#define KS8695_IRQ_HPNA_TX_STATUS 23 +#define KS8695_IRQ_BUS_ERROR 24 +#define KS8695_IRQ_WAN_RX_STOP 25 +#define KS8695_IRQ_WAN_TX_STOP 26 +#define KS8695_IRQ_WAN_RX_BUF 27 +#define KS8695_IRQ_WAN_TX_BUF 28 +#define KS8695_IRQ_WAN_RX_STATUS 29 +#define KS8695_IRQ_WAN_TX_STATUS 30 +#define KS8695_IRQ_WAN_LINK 31 + +#endif diff --git a/arch/arm/mach-ks8695/include/mach/memory.h b/arch/arm/mach-ks8695/include/mach/memory.h new file mode 100644 index 000000000..ab0d27fa8 --- /dev/null +++ b/arch/arm/mach-ks8695/include/mach/memory.h @@ -0,0 +1,51 @@ +/* + * arch/arm/mach-ks8695/include/mach/memory.h + * + * Copyright (C) 2006 Andrew Victor + * + * KS8695 Memory definitions + * + * 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. + */ + +#ifndef __ASM_ARCH_MEMORY_H +#define __ASM_ARCH_MEMORY_H + +#include <mach/hardware.h> + +#ifndef __ASSEMBLY__ + +#ifdef CONFIG_PCI + +/* PCI mappings */ +#define __virt_to_bus(x) ((x) - PAGE_OFFSET + KS8695_PCIMEM_PA) +#define __bus_to_virt(x) ((x) - KS8695_PCIMEM_PA + PAGE_OFFSET) + +/* Platform-bus mapping */ +extern struct bus_type platform_bus_type; +#define is_lbus_device(dev) (dev && dev->bus == &platform_bus_type) +#define __arch_dma_to_virt(dev, x) ({ (void *) (is_lbus_device(dev) ? \ + __phys_to_virt(x) : __bus_to_virt(x)); }) +#define __arch_virt_to_dma(dev, x) ({ is_lbus_device(dev) ? \ + (dma_addr_t)__virt_to_phys((unsigned long)x) \ + : (dma_addr_t)__virt_to_bus(x); }) +#define __arch_pfn_to_dma(dev, pfn) \ + ({ dma_addr_t __dma = __pfn_to_phys(pfn); \ + if (!is_lbus_device(dev)) \ + __dma = __dma - PHYS_OFFSET + KS8695_PCIMEM_PA; \ + __dma; }) + +#define __arch_dma_to_pfn(dev, x) \ + ({ dma_addr_t __dma = x; \ + if (!is_lbus_device(dev)) \ + __dma += PHYS_OFFSET - KS8695_PCIMEM_PA; \ + __phys_to_pfn(__dma); \ + }) + +#endif + +#endif + +#endif diff --git a/arch/arm/mach-ks8695/include/mach/regs-gpio.h b/arch/arm/mach-ks8695/include/mach/regs-gpio.h new file mode 100644 index 000000000..90614a7d0 --- /dev/null +++ b/arch/arm/mach-ks8695/include/mach/regs-gpio.h @@ -0,0 +1,55 @@ +/* + * arch/arm/mach-ks8695/include/mach/regs-gpio.h + * + * Copyright (C) 2007 Andrew Victor + * + * KS8695 - GPIO control registers and bit definitions. + * + * 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. + */ + +#ifndef KS8695_GPIO_H +#define KS8695_GPIO_H + +#define KS8695_GPIO_OFFSET (0xF0000 + 0xE600) +#define KS8695_GPIO_VA (KS8695_IO_VA + KS8695_GPIO_OFFSET) +#define KS8695_GPIO_PA (KS8695_IO_PA + KS8695_GPIO_OFFSET) + + +#define KS8695_IOPM (0x00) /* I/O Port Mode Register */ +#define KS8695_IOPC (0x04) /* I/O Port Control Register */ +#define KS8695_IOPD (0x08) /* I/O Port Data Register */ + + +/* Port Mode Register */ +#define IOPM(x) (1 << (x)) /* Mode for GPIO Pin x */ + +/* Port Control Register */ +#define IOPC_IOTIM1EN (1 << 17) /* GPIO Pin for Timer1 Enable */ +#define IOPC_IOTIM0EN (1 << 16) /* GPIO Pin for Timer0 Enable */ +#define IOPC_IOEINT3EN (1 << 15) /* GPIO Pin for External/Soft Interrupt 3 Enable */ +#define IOPC_IOEINT3TM (7 << 12) /* GPIO Pin for External/Soft Interrupt 3 Trigger Mode */ +#define IOPC_IOEINT3_MODE(x) ((x) << 12) +#define IOPC_IOEINT2EN (1 << 11) /* GPIO Pin for External/Soft Interrupt 2 Enable */ +#define IOPC_IOEINT2TM (7 << 8) /* GPIO Pin for External/Soft Interrupt 2 Trigger Mode */ +#define IOPC_IOEINT2_MODE(x) ((x) << 8) +#define IOPC_IOEINT1EN (1 << 7) /* GPIO Pin for External/Soft Interrupt 1 Enable */ +#define IOPC_IOEINT1TM (7 << 4) /* GPIO Pin for External/Soft Interrupt 1 Trigger Mode */ +#define IOPC_IOEINT1_MODE(x) ((x) << 4) +#define IOPC_IOEINT0EN (1 << 3) /* GPIO Pin for External/Soft Interrupt 0 Enable */ +#define IOPC_IOEINT0TM (7 << 0) /* GPIO Pin for External/Soft Interrupt 0 Trigger Mode */ +#define IOPC_IOEINT0_MODE(x) ((x) << 0) + + /* Trigger Modes */ +#define IOPC_TM_LOW (0) /* Level Detection (Active Low) */ +#define IOPC_TM_HIGH (1) /* Level Detection (Active High) */ +#define IOPC_TM_RISING (2) /* Rising Edge Detection */ +#define IOPC_TM_FALLING (4) /* Falling Edge Detection */ +#define IOPC_TM_EDGE (6) /* Both Edge Detection */ + +/* Port Data Register */ +#define IOPD(x) (1 << (x)) /* Signal Level of GPIO Pin x */ + +#endif diff --git a/arch/arm/mach-ks8695/include/mach/regs-irq.h b/arch/arm/mach-ks8695/include/mach/regs-irq.h new file mode 100644 index 000000000..352b7e870 --- /dev/null +++ b/arch/arm/mach-ks8695/include/mach/regs-irq.h @@ -0,0 +1,41 @@ +/* + * arch/arm/mach-ks8695/include/mach/regs-irq.h + * + * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> + * Copyright (C) 2006 Simtec Electronics + * + * KS8695 - IRQ registers and bit definitions + * + * 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. + */ + +#ifndef KS8695_IRQ_H +#define KS8695_IRQ_H + +#define KS8695_IRQ_OFFSET (0xF0000 + 0xE200) +#define KS8695_IRQ_VA (KS8695_IO_VA + KS8695_IRQ_OFFSET) +#define KS8695_IRQ_PA (KS8695_IO_PA + KS8695_IRQ_OFFSET) + + +/* + * Interrupt Controller registers + */ +#define KS8695_INTMC (0x00) /* Mode Control Register */ +#define KS8695_INTEN (0x04) /* Interrupt Enable Register */ +#define KS8695_INTST (0x08) /* Interrupt Status Register */ +#define KS8695_INTPW (0x0c) /* Interrupt Priority (WAN MAC) */ +#define KS8695_INTPH (0x10) /* Interrupt Priority (HPNA) [KS8695 only] */ +#define KS8695_INTPL (0x14) /* Interrupt Priority (LAN MAC) */ +#define KS8695_INTPT (0x18) /* Interrupt Priority (Timer) */ +#define KS8695_INTPU (0x1c) /* Interrupt Priority (UART) */ +#define KS8695_INTPE (0x20) /* Interrupt Priority (External Interrupt) */ +#define KS8695_INTPC (0x24) /* Interrupt Priority (Communications Channel) */ +#define KS8695_INTPBE (0x28) /* Interrupt Priority (Bus Error Response) */ +#define KS8695_INTMS (0x2c) /* Interrupt Mask Status Register */ +#define KS8695_INTHPF (0x30) /* Interrupt Pending Highest Priority (FIQ) */ +#define KS8695_INTHPI (0x34) /* Interrupt Pending Highest Priority (IRQ) */ + + +#endif diff --git a/arch/arm/mach-ks8695/include/mach/regs-misc.h b/arch/arm/mach-ks8695/include/mach/regs-misc.h new file mode 100644 index 000000000..2740c5249 --- /dev/null +++ b/arch/arm/mach-ks8695/include/mach/regs-misc.h @@ -0,0 +1,97 @@ +/* + * arch/arm/mach-ks8695/include/mach/regs-misc.h + * + * Copyright (C) 2006 Andrew Victor + * + * KS8695 - Miscellaneous Registers + * + * 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. + */ + +#ifndef KS8695_MISC_H +#define KS8695_MISC_H + +#define KS8695_MISC_OFFSET (0xF0000 + 0xEA00) +#define KS8695_MISC_VA (KS8695_IO_VA + KS8695_MISC_OFFSET) +#define KS8695_MISC_PA (KS8695_IO_PA + KS8695_MISC_OFFSET) + + +/* + * Miscellaneous registers + */ +#define KS8695_DID (0x00) /* Device ID */ +#define KS8695_RID (0x04) /* Revision ID */ +#define KS8695_HMC (0x08) /* HPNA Miscellaneous Control [KS8695 only] */ +#define KS8695_WMC (0x0c) /* WAN Miscellaneous Control */ +#define KS8695_WPPM (0x10) /* WAN PHY Power Management */ +#define KS8695_PPS (0x1c) /* PHY PowerSave */ + +/* Device ID Register */ +#define DID_ID (0xffff << 0) /* Device ID */ + +/* Revision ID Register */ +#define RID_SUBID (0xf << 4) /* Sub-Device ID */ +#define RID_REVISION (0xf << 0) /* Revision ID */ + +/* HPNA Miscellaneous Control Register */ +#define HMC_HSS (1 << 1) /* Speed */ +#define HMC_HDS (1 << 0) /* Duplex */ + +/* WAN Miscellaneous Control Register */ +#define WMC_WANC (1 << 30) /* Auto-negotiation complete */ +#define WMC_WANR (1 << 29) /* Auto-negotiation restart */ +#define WMC_WANAP (1 << 28) /* Advertise Pause */ +#define WMC_WANA100F (1 << 27) /* Advertise 100 FDX */ +#define WMC_WANA100H (1 << 26) /* Advertise 100 HDX */ +#define WMC_WANA10F (1 << 25) /* Advertise 10 FDX */ +#define WMC_WANA10H (1 << 24) /* Advertise 10 HDX */ +#define WMC_WLS (1 << 23) /* Link status */ +#define WMC_WDS (1 << 22) /* Duplex status */ +#define WMC_WSS (1 << 21) /* Speed status */ +#define WMC_WLPP (1 << 20) /* Link Partner Pause */ +#define WMC_WLP100F (1 << 19) /* Link Partner 100 FDX */ +#define WMC_WLP100H (1 << 18) /* Link Partner 100 HDX */ +#define WMC_WLP10F (1 << 17) /* Link Partner 10 FDX */ +#define WMC_WLP10H (1 << 16) /* Link Partner 10 HDX */ +#define WMC_WAND (1 << 15) /* Auto-negotiation disable */ +#define WMC_WANF100 (1 << 14) /* Force 100 */ +#define WMC_WANFF (1 << 13) /* Force FDX */ +#define WMC_WLED1S (7 << 4) /* LED1 Select */ +#define WLED1S_SPEED (0 << 4) +#define WLED1S_LINK (1 << 4) +#define WLED1S_DUPLEX (2 << 4) +#define WLED1S_COLLISION (3 << 4) +#define WLED1S_ACTIVITY (4 << 4) +#define WLED1S_FDX_COLLISION (5 << 4) +#define WLED1S_LINK_ACTIVITY (6 << 4) +#define WMC_WLED0S (7 << 0) /* LED0 Select */ +#define WLED0S_SPEED (0 << 0) +#define WLED0S_LINK (1 << 0) +#define WLED0S_DUPLEX (2 << 0) +#define WLED0S_COLLISION (3 << 0) +#define WLED0S_ACTIVITY (4 << 0) +#define WLED0S_FDX_COLLISION (5 << 0) +#define WLED0S_LINK_ACTIVITY (6 << 0) + +/* WAN PHY Power Management Register */ +#define WPPM_WLPBK (1 << 14) /* Local Loopback */ +#define WPPM_WRLPKB (1 << 13) /* Remove Loopback */ +#define WPPM_WPI (1 << 12) /* PHY isolate */ +#define WPPM_WFL (1 << 10) /* Force link */ +#define WPPM_MDIXS (1 << 9) /* MDIX Status */ +#define WPPM_FEF (1 << 8) /* Far End Fault */ +#define WPPM_AMDIXP (1 << 7) /* Auto MDIX Parameter */ +#define WPPM_TXDIS (1 << 6) /* Disable transmitter */ +#define WPPM_DFEF (1 << 5) /* Disable Far End Fault */ +#define WPPM_PD (1 << 4) /* Power Down */ +#define WPPM_DMDX (1 << 3) /* Disable Auto MDI/MDIX */ +#define WPPM_FMDX (1 << 2) /* Force MDIX */ +#define WPPM_LPBK (1 << 1) /* MAX Loopback */ + +/* PHY Power Save Register */ +#define PPS_PPSM (1 << 0) /* PHY Power Save Mode */ + + +#endif diff --git a/arch/arm/mach-ks8695/include/mach/regs-switch.h b/arch/arm/mach-ks8695/include/mach/regs-switch.h new file mode 100644 index 000000000..97e8acb1c --- /dev/null +++ b/arch/arm/mach-ks8695/include/mach/regs-switch.h @@ -0,0 +1,66 @@ +/* + * arch/arm/mach-ks8695/include/mach/regs-switch.h + * + * Copyright (C) 2006 Andrew Victor + * + * KS8695 - Switch Registers and bit definitions. + * + * 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. + */ + +#ifndef KS8695_SWITCH_H +#define KS8695_SWITCH_H + +#define KS8695_SWITCH_OFFSET (0xF0000 + 0xe800) +#define KS8695_SWITCH_VA (KS8695_IO_VA + KS8695_SWITCH_OFFSET) +#define KS8695_SWITCH_PA (KS8695_IO_PA + KS8695_SWITCH_OFFSET) + + +/* + * Switch registers + */ +#define KS8695_SEC0 (0x00) /* Switch Engine Control 0 */ +#define KS8695_SEC1 (0x04) /* Switch Engine Control 1 */ +#define KS8695_SEC2 (0x08) /* Switch Engine Control 2 */ + +#define KS8695_SEPXCZ(x,z) (0x0c + (((x)-1)*3 + ((z)-1))*4) /* Port Configuration Registers */ + +#define KS8695_SEP12AN (0x48) /* Port 1 & 2 Auto-Negotiation */ +#define KS8695_SEP34AN (0x4c) /* Port 3 & 4 Auto-Negotiation */ +#define KS8695_SEIAC (0x50) /* Indirect Access Control */ +#define KS8695_SEIADH2 (0x54) /* Indirect Access Data High 2 */ +#define KS8695_SEIADH1 (0x58) /* Indirect Access Data High 1 */ +#define KS8695_SEIADL (0x5c) /* Indirect Access Data Low */ +#define KS8695_SEAFC (0x60) /* Advance Feature Control */ +#define KS8695_SEDSCPH (0x64) /* TOS Priority High */ +#define KS8695_SEDSCPL (0x68) /* TOS Priority Low */ +#define KS8695_SEMAH (0x6c) /* Switch Engine MAC Address High */ +#define KS8695_SEMAL (0x70) /* Switch Engine MAC Address Low */ +#define KS8695_LPPM12 (0x74) /* Port 1 & 2 PHY Power Management */ +#define KS8695_LPPM34 (0x78) /* Port 3 & 4 PHY Power Management */ + + +/* Switch Engine Control 0 */ +#define SEC0_LLED1S (7 << 25) /* LED1 Select */ +#define LLED1S_SPEED (0 << 25) +#define LLED1S_LINK (1 << 25) +#define LLED1S_DUPLEX (2 << 25) +#define LLED1S_COLLISION (3 << 25) +#define LLED1S_ACTIVITY (4 << 25) +#define LLED1S_FDX_COLLISION (5 << 25) +#define LLED1S_LINK_ACTIVITY (6 << 25) +#define SEC0_LLED0S (7 << 22) /* LED0 Select */ +#define LLED0S_SPEED (0 << 22) +#define LLED0S_LINK (1 << 22) +#define LLED0S_DUPLEX (2 << 22) +#define LLED0S_COLLISION (3 << 22) +#define LLED0S_ACTIVITY (4 << 22) +#define LLED0S_FDX_COLLISION (5 << 22) +#define LLED0S_LINK_ACTIVITY (6 << 22) +#define SEC0_ENABLE (1 << 0) /* Enable Switch */ + + + +#endif diff --git a/arch/arm/mach-ks8695/include/mach/regs-uart.h b/arch/arm/mach-ks8695/include/mach/regs-uart.h new file mode 100644 index 000000000..8581fbc62 --- /dev/null +++ b/arch/arm/mach-ks8695/include/mach/regs-uart.h @@ -0,0 +1,92 @@ +/* + * arch/arm/mach-ks8695/include/mach/regs-uart.h + * + * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> + * Copyright (C) 2006 Simtec Electronics + * + * KS8695 - UART register and bit definitions. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef KS8695_UART_H +#define KS8695_UART_H + +#define KS8695_UART_OFFSET (0xF0000 + 0xE000) +#define KS8695_UART_VA (KS8695_IO_VA + KS8695_UART_OFFSET) +#define KS8695_UART_PA (KS8695_IO_PA + KS8695_UART_OFFSET) + + +/* + * UART registers + */ +#define KS8695_URRB (0x00) /* Receive Buffer Register */ +#define KS8695_URTH (0x04) /* Transmit Holding Register */ +#define KS8695_URFC (0x08) /* FIFO Control Register */ +#define KS8695_URLC (0x0C) /* Line Control Register */ +#define KS8695_URMC (0x10) /* Modem Control Register */ +#define KS8695_URLS (0x14) /* Line Status Register */ +#define KS8695_URMS (0x18) /* Modem Status Register */ +#define KS8695_URBD (0x1C) /* Baud Rate Divisor Register */ +#define KS8695_USR (0x20) /* Status Register */ + + +/* FIFO Control Register */ +#define URFC_URFRT (3 << 6) /* Receive FIFO Trigger Level */ +#define URFC_URFRT_1 (0 << 6) +#define URFC_URFRT_4 (1 << 6) +#define URFC_URFRT_8 (2 << 6) +#define URFC_URFRT_14 (3 << 6) +#define URFC_URTFR (1 << 2) /* Transmit FIFO Reset */ +#define URFC_URRFR (1 << 1) /* Receive FIFO Reset */ +#define URFC_URFE (1 << 0) /* FIFO Enable */ + +/* Line Control Register */ +#define URLC_URSBC (1 << 6) /* Set Break Condition */ +#define URLC_PARITY (7 << 3) /* Parity */ +#define URPE_NONE (0 << 3) +#define URPE_ODD (1 << 3) +#define URPE_EVEN (3 << 3) +#define URPE_MARK (5 << 3) +#define URPE_SPACE (7 << 3) +#define URLC_URSB (1 << 2) /* Stop Bits */ +#define URLC_URCL (3 << 0) /* Character Length */ +#define URCL_5 (0 << 0) +#define URCL_6 (1 << 0) +#define URCL_7 (2 << 0) +#define URCL_8 (3 << 0) + +/* Modem Control Register */ +#define URMC_URLB (1 << 4) /* Loop-back mode */ +#define URMC_UROUT2 (1 << 3) /* OUT2 signal */ +#define URMC_UROUT1 (1 << 2) /* OUT1 signal */ +#define URMC_URRTS (1 << 1) /* Request to Send */ +#define URMC_URDTR (1 << 0) /* Data Terminal Ready */ + +/* Line Status Register */ +#define URLS_URRFE (1 << 7) /* Receive FIFO Error */ +#define URLS_URTE (1 << 6) /* Transmit Empty */ +#define URLS_URTHRE (1 << 5) /* Transmit Holding Register Empty */ +#define URLS_URBI (1 << 4) /* Break Interrupt */ +#define URLS_URFE (1 << 3) /* Framing Error */ +#define URLS_URPE (1 << 2) /* Parity Error */ +#define URLS_URROE (1 << 1) /* Receive Overrun Error */ +#define URLS_URDR (1 << 0) /* Receive Data Ready */ + +/* Modem Status Register */ +#define URMS_URDCD (1 << 7) /* Data Carrier Detect */ +#define URMS_URRI (1 << 6) /* Ring Indicator */ +#define URMS_URDSR (1 << 5) /* Data Set Ready */ +#define URMS_URCTS (1 << 4) /* Clear to Send */ +#define URMS_URDDCD (1 << 3) /* Delta Data Carrier Detect */ +#define URMS_URTERI (1 << 2) /* Trailing Edge Ring Indicator */ +#define URMS_URDDST (1 << 1) /* Delta Data Set Ready */ +#define URMS_URDCTS (1 << 0) /* Delta Clear to Send */ + +/* Status Register */ +#define USR_UTI (1 << 0) /* Timeout Indication */ + + +#endif diff --git a/arch/arm/mach-ks8695/include/mach/uncompress.h b/arch/arm/mach-ks8695/include/mach/uncompress.h new file mode 100644 index 000000000..a001c7c34 --- /dev/null +++ b/arch/arm/mach-ks8695/include/mach/uncompress.h @@ -0,0 +1,36 @@ +/* + * arch/arm/mach-ks8695/include/mach/uncompress.h + * + * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> + * Copyright (C) 2006 Simtec Electronics + * + * KS8695 - Kernel uncompressor + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __ASM_ARCH_UNCOMPRESS_H +#define __ASM_ARCH_UNCOMPRESS_H + +#include <linux/io.h> +#include <mach/regs-uart.h> + +static inline void putc(char c) +{ + while (!(__raw_readl((void __iomem*)KS8695_UART_PA + KS8695_URLS) & URLS_URTHRE)) + barrier(); + + __raw_writel(c, (void __iomem*)KS8695_UART_PA + KS8695_URTH); +} + +static inline void flush(void) +{ + while (!(__raw_readl((void __iomem*)KS8695_UART_PA + KS8695_URLS) & URLS_URTE)) + barrier(); +} + +#define arch_decomp_setup() + +#endif diff --git a/arch/arm/mach-ks8695/irq.c b/arch/arm/mach-ks8695/irq.c new file mode 100644 index 000000000..31439f2ee --- /dev/null +++ b/arch/arm/mach-ks8695/irq.c @@ -0,0 +1,177 @@ +/* + * arch/arm/mach-ks8695/irq.c + * + * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> + * Copyright (C) 2006 Simtec Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/init.h> +#include <linux/module.h> +#include <linux/interrupt.h> +#include <linux/ioport.h> +#include <linux/device.h> +#include <linux/io.h> + +#include <mach/hardware.h> +#include <asm/irq.h> + +#include <asm/mach/irq.h> + +#include <mach/regs-irq.h> +#include <mach/regs-gpio.h> + +static void ks8695_irq_mask(struct irq_data *d) +{ + unsigned long inten; + + inten = __raw_readl(KS8695_IRQ_VA + KS8695_INTEN); + inten &= ~(1 << d->irq); + + __raw_writel(inten, KS8695_IRQ_VA + KS8695_INTEN); +} + +static void ks8695_irq_unmask(struct irq_data *d) +{ + unsigned long inten; + + inten = __raw_readl(KS8695_IRQ_VA + KS8695_INTEN); + inten |= (1 << d->irq); + + __raw_writel(inten, KS8695_IRQ_VA + KS8695_INTEN); +} + +static void ks8695_irq_ack(struct irq_data *d) +{ + __raw_writel((1 << d->irq), KS8695_IRQ_VA + KS8695_INTST); +} + + +static struct irq_chip ks8695_irq_level_chip; +static struct irq_chip ks8695_irq_edge_chip; + + +static int ks8695_irq_set_type(struct irq_data *d, unsigned int type) +{ + unsigned long ctrl, mode; + unsigned short level_triggered = 0; + + ctrl = __raw_readl(KS8695_GPIO_VA + KS8695_IOPC); + + switch (type) { + case IRQ_TYPE_LEVEL_HIGH: + mode = IOPC_TM_HIGH; + level_triggered = 1; + break; + case IRQ_TYPE_LEVEL_LOW: + mode = IOPC_TM_LOW; + level_triggered = 1; + break; + case IRQ_TYPE_EDGE_RISING: + mode = IOPC_TM_RISING; + break; + case IRQ_TYPE_EDGE_FALLING: + mode = IOPC_TM_FALLING; + break; + case IRQ_TYPE_EDGE_BOTH: + mode = IOPC_TM_EDGE; + break; + default: + return -EINVAL; + } + + switch (d->irq) { + case KS8695_IRQ_EXTERN0: + ctrl &= ~IOPC_IOEINT0TM; + ctrl |= IOPC_IOEINT0_MODE(mode); + break; + case KS8695_IRQ_EXTERN1: + ctrl &= ~IOPC_IOEINT1TM; + ctrl |= IOPC_IOEINT1_MODE(mode); + break; + case KS8695_IRQ_EXTERN2: + ctrl &= ~IOPC_IOEINT2TM; + ctrl |= IOPC_IOEINT2_MODE(mode); + break; + case KS8695_IRQ_EXTERN3: + ctrl &= ~IOPC_IOEINT3TM; + ctrl |= IOPC_IOEINT3_MODE(mode); + break; + default: + return -EINVAL; + } + + if (level_triggered) { + irq_set_chip_and_handler(d->irq, &ks8695_irq_level_chip, + handle_level_irq); + } + else { + irq_set_chip_and_handler(d->irq, &ks8695_irq_edge_chip, + handle_edge_irq); + } + + __raw_writel(ctrl, KS8695_GPIO_VA + KS8695_IOPC); + return 0; +} + +static struct irq_chip ks8695_irq_level_chip = { + .irq_ack = ks8695_irq_mask, + .irq_mask = ks8695_irq_mask, + .irq_unmask = ks8695_irq_unmask, + .irq_set_type = ks8695_irq_set_type, +}; + +static struct irq_chip ks8695_irq_edge_chip = { + .irq_ack = ks8695_irq_ack, + .irq_mask = ks8695_irq_mask, + .irq_unmask = ks8695_irq_unmask, + .irq_set_type = ks8695_irq_set_type, +}; + +void __init ks8695_init_irq(void) +{ + unsigned int irq; + + /* Disable all interrupts initially */ + __raw_writel(0, KS8695_IRQ_VA + KS8695_INTMC); + __raw_writel(0, KS8695_IRQ_VA + KS8695_INTEN); + + for (irq = 0; irq < NR_IRQS; irq++) { + switch (irq) { + /* Level-triggered interrupts */ + case KS8695_IRQ_BUS_ERROR: + case KS8695_IRQ_UART_MODEM_STATUS: + case KS8695_IRQ_UART_LINE_STATUS: + case KS8695_IRQ_UART_RX: + case KS8695_IRQ_COMM_TX: + case KS8695_IRQ_COMM_RX: + irq_set_chip_and_handler(irq, + &ks8695_irq_level_chip, + handle_level_irq); + break; + + /* Edge-triggered interrupts */ + default: + /* clear pending bit */ + ks8695_irq_ack(irq_get_irq_data(irq)); + irq_set_chip_and_handler(irq, + &ks8695_irq_edge_chip, + handle_edge_irq); + } + + irq_clear_status_flags(irq, IRQ_NOREQUEST); + } +} diff --git a/arch/arm/mach-ks8695/pci.c b/arch/arm/mach-ks8695/pci.c new file mode 100644 index 000000000..577a35f75 --- /dev/null +++ b/arch/arm/mach-ks8695/pci.c @@ -0,0 +1,260 @@ +/* + * arch/arm/mach-ks8695/pci.c + * + * Copyright (C) 2003, Micrel Semiconductors + * Copyright (C) 2006, Greg Ungerer <gerg@snapgear.com> + * Copyright (C) 2006, Ben Dooks + * Copyright (C) 2007, Andrew Victor + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/kernel.h> +#include <linux/pci.h> +#include <linux/mm.h> +#include <linux/init.h> +#include <linux/irq.h> +#include <linux/delay.h> +#include <linux/io.h> + +#include <asm/signal.h> +#include <asm/mach/pci.h> +#include <mach/hardware.h> + +#include "devices.h" +#include "regs-pci.h" + + +static int pci_dbg; + +static void ks8695_pci_setupconfig(unsigned int bus_nr, unsigned int devfn, unsigned int where) +{ + unsigned long pbca; + + pbca = PBCA_ENABLE | (where & ~3); + pbca |= PCI_SLOT(devfn) << 11 ; + pbca |= PCI_FUNC(devfn) << 8; + pbca |= bus_nr << 16; + + if (bus_nr == 0) { + /* use Type-0 transaction */ + __raw_writel(pbca, KS8695_PCI_VA + KS8695_PBCA); + } else { + /* use Type-1 transaction */ + __raw_writel(pbca | PBCA_TYPE1, KS8695_PCI_VA + KS8695_PBCA); + } +} + +static void __iomem *ks8695_pci_map_bus(struct pci_bus *bus, unsigned int devfn, + int where) +{ + ks8695_pci_setupconfig(bus->number, devfn, where); + return KS8695_PCI_VA + KS8695_PBCD; +} + +static void ks8695_local_writeconfig(int where, u32 value) +{ + ks8695_pci_setupconfig(0, 0, where); + __raw_writel(value, KS8695_PCI_VA + KS8695_PBCD); +} + +static struct pci_ops ks8695_pci_ops = { + .map_bus = ks8695_pci_map_bus, + .read = pci_generic_config_read32, + .write = pci_generic_config_write32, +}; + +static struct resource pci_mem = { + .name = "PCI Memory space", + .start = KS8695_PCIMEM_PA, + .end = KS8695_PCIMEM_PA + (KS8695_PCIMEM_SIZE - 1), + .flags = IORESOURCE_MEM, +}; + +static struct resource pci_io = { + .name = "PCI IO space", + .start = KS8695_PCIIO_PA, + .end = KS8695_PCIIO_PA + (KS8695_PCIIO_SIZE - 1), + .flags = IORESOURCE_IO, +}; + +static int __init ks8695_pci_setup(int nr, struct pci_sys_data *sys) +{ + if (nr > 0) + return 0; + + request_resource(&iomem_resource, &pci_mem); + request_resource(&ioport_resource, &pci_io); + + pci_add_resource_offset(&sys->resources, &pci_io, sys->io_offset); + pci_add_resource_offset(&sys->resources, &pci_mem, sys->mem_offset); + + /* Assign and enable processor bridge */ + ks8695_local_writeconfig(PCI_BASE_ADDRESS_0, KS8695_PCIMEM_PA); + + /* Enable bus-master & Memory Space access */ + ks8695_local_writeconfig(PCI_COMMAND, PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY); + + /* Set cache-line size & latency. */ + ks8695_local_writeconfig(PCI_CACHE_LINE_SIZE, (32 << 8) | (L1_CACHE_BYTES / sizeof(u32))); + + /* Reserve PCI memory space for PCI-AHB resources */ + if (!request_mem_region(KS8695_PCIMEM_PA, SZ_64M, "PCI-AHB Bridge")) { + printk(KERN_ERR "Cannot allocate PCI-AHB Bridge memory.\n"); + return -EBUSY; + } + + return 1; +} + +static inline unsigned int size_mask(unsigned long size) +{ + return (~size) + 1; +} + +static int ks8695_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs) +{ + unsigned long pc = instruction_pointer(regs); + unsigned long instr = *(unsigned long *)pc; + unsigned long cmdstat; + + cmdstat = __raw_readl(KS8695_PCI_VA + KS8695_CRCFCS); + + printk(KERN_ERR "PCI abort: address = 0x%08lx fsr = 0x%03x PC = 0x%08lx LR = 0x%08lx [%s%s%s%s%s]\n", + addr, fsr, regs->ARM_pc, regs->ARM_lr, + cmdstat & (PCI_STATUS_SIG_TARGET_ABORT << 16) ? "GenTarget" : " ", + cmdstat & (PCI_STATUS_REC_TARGET_ABORT << 16) ? "RecvTarget" : " ", + cmdstat & (PCI_STATUS_REC_MASTER_ABORT << 16) ? "MasterAbort" : " ", + cmdstat & (PCI_STATUS_SIG_SYSTEM_ERROR << 16) ? "SysError" : " ", + cmdstat & (PCI_STATUS_DETECTED_PARITY << 16) ? "Parity" : " " + ); + + __raw_writel(cmdstat, KS8695_PCI_VA + KS8695_CRCFCS); + + /* + * If the instruction being executed was a read, + * make it look like it read all-ones. + */ + if ((instr & 0x0c100000) == 0x04100000) { + int reg = (instr >> 12) & 15; + unsigned long val; + + if (instr & 0x00400000) + val = 255; + else + val = -1; + + regs->uregs[reg] = val; + regs->ARM_pc += 4; + return 0; + } + + if ((instr & 0x0e100090) == 0x00100090) { + int reg = (instr >> 12) & 15; + + regs->uregs[reg] = -1; + regs->ARM_pc += 4; + return 0; + } + + return 1; +} + +static void __init ks8695_pci_preinit(void) +{ + /* make software reset to avoid freeze if PCI bus was messed up */ + __raw_writel(0x80000000, KS8695_PCI_VA + KS8695_PBCS); + + /* stage 1 initialization, subid, subdevice = 0x0001 */ + __raw_writel(0x00010001, KS8695_PCI_VA + KS8695_CRCSID); + + /* stage 2 initialization */ + /* prefetch limits with 16 words, retry enable */ + __raw_writel(0x40000000, KS8695_PCI_VA + KS8695_PBCS); + + /* configure memory mapping */ + __raw_writel(KS8695_PCIMEM_PA, KS8695_PCI_VA + KS8695_PMBA); + __raw_writel(size_mask(KS8695_PCIMEM_SIZE), KS8695_PCI_VA + KS8695_PMBAM); + __raw_writel(KS8695_PCIMEM_PA, KS8695_PCI_VA + KS8695_PMBAT); + __raw_writel(0, KS8695_PCI_VA + KS8695_PMBAC); + + /* configure IO mapping */ + __raw_writel(KS8695_PCIIO_PA, KS8695_PCI_VA + KS8695_PIOBA); + __raw_writel(size_mask(KS8695_PCIIO_SIZE), KS8695_PCI_VA + KS8695_PIOBAM); + __raw_writel(KS8695_PCIIO_PA, KS8695_PCI_VA + KS8695_PIOBAT); + __raw_writel(0, KS8695_PCI_VA + KS8695_PIOBAC); + + /* hook in fault handlers */ + hook_fault_code(8, ks8695_pci_fault, SIGBUS, 0, "external abort on non-linefetch"); + hook_fault_code(10, ks8695_pci_fault, SIGBUS, 0, "external abort on non-linefetch"); +} + +static void ks8695_show_pciregs(void) +{ + if (!pci_dbg) + return; + + printk(KERN_INFO "PCI: CRCFID = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFID)); + printk(KERN_INFO "PCI: CRCFCS = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFCS)); + printk(KERN_INFO "PCI: CRCFRV = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFRV)); + printk(KERN_INFO "PCI: CRCFLT = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFLT)); + printk(KERN_INFO "PCI: CRCBMA = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCBMA)); + printk(KERN_INFO "PCI: CRCSID = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCSID)); + printk(KERN_INFO "PCI: CRCFIT = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_CRCFIT)); + + printk(KERN_INFO "PCI: PBM = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PBM)); + printk(KERN_INFO "PCI: PBCS = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PBCS)); + + printk(KERN_INFO "PCI: PMBA = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PMBA)); + printk(KERN_INFO "PCI: PMBAC = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PMBAC)); + printk(KERN_INFO "PCI: PMBAM = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PMBAM)); + printk(KERN_INFO "PCI: PMBAT = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PMBAT)); + + printk(KERN_INFO "PCI: PIOBA = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PIOBA)); + printk(KERN_INFO "PCI: PIOBAC = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PIOBAC)); + printk(KERN_INFO "PCI: PIOBAM = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PIOBAM)); + printk(KERN_INFO "PCI: PIOBAT = %08x\n", __raw_readl(KS8695_PCI_VA + KS8695_PIOBAT)); +} + + +static struct hw_pci ks8695_pci __initdata = { + .nr_controllers = 1, + .ops = &ks8695_pci_ops, + .preinit = ks8695_pci_preinit, + .setup = ks8695_pci_setup, + .postinit = NULL, + .map_irq = NULL, +}; + +void __init ks8695_init_pci(struct ks8695_pci_cfg *cfg) +{ + if (__raw_readl(KS8695_PCI_VA + KS8695_CRCFRV) & CFRV_GUEST) { + printk("PCI: KS8695 in guest mode, not initialising\n"); + return; + } + + pcibios_min_io = 0; + pcibios_min_mem = 0; + + printk(KERN_INFO "PCI: Initialising\n"); + ks8695_show_pciregs(); + + /* set Mode */ + __raw_writel(cfg->mode << 29, KS8695_PCI_VA + KS8695_PBM); + + ks8695_pci.map_irq = cfg->map_irq; /* board-specific map_irq method */ + + pci_common_init(&ks8695_pci); +} diff --git a/arch/arm/mach-ks8695/regs-hpna.h b/arch/arm/mach-ks8695/regs-hpna.h new file mode 100644 index 000000000..815ce5c2e --- /dev/null +++ b/arch/arm/mach-ks8695/regs-hpna.h @@ -0,0 +1,25 @@ +/* + * arch/arm/mach-ks8695/include/mach/regs-wan.h + * + * Copyright (C) 2006 Andrew Victor + * + * KS8695 - HPNA Registers and bit definitions. + * + * 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. + */ + +#ifndef KS8695_HPNA_H +#define KS8695_HPNA_H + +#define KS8695_HPNA_OFFSET (0xF0000 + 0xA000) +#define KS8695_HPNA_VA (KS8695_IO_VA + KS8695_HPNA_OFFSET) +#define KS8695_HPNA_PA (KS8695_IO_PA + KS8695_HPNA_OFFSET) + + +/* + * HPNA registers + */ + +#endif diff --git a/arch/arm/mach-ks8695/regs-lan.h b/arch/arm/mach-ks8695/regs-lan.h new file mode 100644 index 000000000..82c5f3791 --- /dev/null +++ b/arch/arm/mach-ks8695/regs-lan.h @@ -0,0 +1,65 @@ +/* + * arch/arm/mach-ks8695/include/mach/regs-lan.h + * + * Copyright (C) 2006 Andrew Victor + * + * KS8695 - LAN Registers and bit definitions. + * + * 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. + */ + +#ifndef KS8695_LAN_H +#define KS8695_LAN_H + +#define KS8695_LAN_OFFSET (0xF0000 + 0x8000) +#define KS8695_LAN_VA (KS8695_IO_VA + KS8695_LAN_OFFSET) +#define KS8695_LAN_PA (KS8695_IO_PA + KS8695_LAN_OFFSET) + + +/* + * LAN registers + */ +#define KS8695_LMDTXC (0x00) /* DMA Transmit Control */ +#define KS8695_LMDRXC (0x04) /* DMA Receive Control */ +#define KS8695_LMDTSC (0x08) /* DMA Transmit Start Command */ +#define KS8695_LMDRSC (0x0c) /* DMA Receive Start Command */ +#define KS8695_LTDLB (0x10) /* Transmit Descriptor List Base Address */ +#define KS8695_LRDLB (0x14) /* Receive Descriptor List Base Address */ +#define KS8695_LMAL (0x18) /* MAC Station Address Low */ +#define KS8695_LMAH (0x1c) /* MAC Station Address High */ +#define KS8695_LMAAL(n) (0x80 + ((n)*8)) /* MAC Additional Station Address (0..15) Low */ +#define KS8695_LMAAH(n) (0x84 + ((n)*8)) /* MAC Additional Station Address (0..15) High */ + + +/* DMA Transmit Control Register */ +#define LMDTXC_LMTRST (1 << 31) /* Soft Reset */ +#define LMDTXC_LMTBS (0x3f << 24) /* Transmit Burst Size */ +#define LMDTXC_LMTUCG (1 << 18) /* Transmit UDP Checksum Generate */ +#define LMDTXC_LMTTCG (1 << 17) /* Transmit TCP Checksum Generate */ +#define LMDTXC_LMTICG (1 << 16) /* Transmit IP Checksum Generate */ +#define LMDTXC_LMTFCE (1 << 9) /* Transmit Flow Control Enable */ +#define LMDTXC_LMTLB (1 << 8) /* Loopback mode */ +#define LMDTXC_LMTEP (1 << 2) /* Transmit Enable Padding */ +#define LMDTXC_LMTAC (1 << 1) /* Transmit Add CRC */ +#define LMDTXC_LMTE (1 << 0) /* TX Enable */ + +/* DMA Receive Control Register */ +#define LMDRXC_LMRBS (0x3f << 24) /* Receive Burst Size */ +#define LMDRXC_LMRUCC (1 << 18) /* Receive UDP Checksum check */ +#define LMDRXC_LMRTCG (1 << 17) /* Receive TCP Checksum check */ +#define LMDRXC_LMRICG (1 << 16) /* Receive IP Checksum check */ +#define LMDRXC_LMRFCE (1 << 9) /* Receive Flow Control Enable */ +#define LMDRXC_LMRB (1 << 6) /* Receive Broadcast */ +#define LMDRXC_LMRM (1 << 5) /* Receive Multicast */ +#define LMDRXC_LMRU (1 << 4) /* Receive Unicast */ +#define LMDRXC_LMRERR (1 << 3) /* Receive Error Frame */ +#define LMDRXC_LMRA (1 << 2) /* Receive All */ +#define LMDRXC_LMRE (1 << 1) /* RX Enable */ + +/* Additional Station Address High */ +#define LMAAH_E (1 << 31) /* Address Enabled */ + + +#endif diff --git a/arch/arm/mach-ks8695/regs-mem.h b/arch/arm/mach-ks8695/regs-mem.h new file mode 100644 index 000000000..55806bc68 --- /dev/null +++ b/arch/arm/mach-ks8695/regs-mem.h @@ -0,0 +1,89 @@ +/* + * arch/arm/mach-ks8695/include/mach/regs-mem.h + * + * Copyright (C) 2006 Andrew Victor + * + * KS8695 - Memory Controller registers and bit definitions + * + * 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. + */ + +#ifndef KS8695_MEM_H +#define KS8695_MEM_H + +#define KS8695_MEM_OFFSET (0xF0000 + 0x4000) +#define KS8695_MEM_VA (KS8695_IO_VA + KS8695_MEM_OFFSET) +#define KS8695_MEM_PA (KS8695_IO_PA + KS8695_MEM_OFFSET) + + +/* + * Memory Controller Registers + */ +#define KS8695_EXTACON0 (0x00) /* External I/O 0 Access Control */ +#define KS8695_EXTACON1 (0x04) /* External I/O 1 Access Control */ +#define KS8695_EXTACON2 (0x08) /* External I/O 2 Access Control */ +#define KS8695_ROMCON0 (0x10) /* ROM/SRAM/Flash 1 Control Register */ +#define KS8695_ROMCON1 (0x14) /* ROM/SRAM/Flash 2 Control Register */ +#define KS8695_ERGCON (0x20) /* External I/O and ROM/SRAM/Flash General Register */ +#define KS8695_SDCON0 (0x30) /* SDRAM Control Register 0 */ +#define KS8695_SDCON1 (0x34) /* SDRAM Control Register 1 */ +#define KS8695_SDGCON (0x38) /* SDRAM General Control */ +#define KS8695_SDBCON (0x3c) /* SDRAM Buffer Control */ +#define KS8695_REFTIM (0x40) /* SDRAM Refresh Timer */ + + +/* External I/O Access Control Registers */ +#define EXTACON_EBNPTR (0x3ff << 22) /* Last Address Pointer */ +#define EXTACON_EBBPTR (0x3ff << 12) /* Base Pointer */ +#define EXTACON_EBTACT (7 << 9) /* Write Enable/Output Enable Active Time */ +#define EXTACON_EBTCOH (7 << 6) /* Chip Select Hold Time */ +#define EXTACON_EBTACS (7 << 3) /* Address Setup Time before ECSN */ +#define EXTACON_EBTCOS (7 << 0) /* Chip Select Time before OEN */ + +/* ROM/SRAM/Flash Control Register */ +#define ROMCON_RBNPTR (0x3ff << 22) /* Next Pointer */ +#define ROMCON_RBBPTR (0x3ff << 12) /* Base Pointer */ +#define ROMCON_RBTACC (7 << 4) /* Access Cycle Time */ +#define ROMCON_RBTPA (3 << 2) /* Page Address Access Time */ +#define ROMCON_PMC (3 << 0) /* Page Mode Configuration */ +#define PMC_NORMAL (0 << 0) +#define PMC_4WORD (1 << 0) +#define PMC_8WORD (2 << 0) +#define PMC_16WORD (3 << 0) + +/* External I/O and ROM/SRAM/Flash General Register */ +#define ERGCON_TMULT (3 << 28) /* Time Multiplier */ +#define ERGCON_DSX2 (3 << 20) /* Data Width (External I/O Bank 2) */ +#define ERGCON_DSX1 (3 << 18) /* Data Width (External I/O Bank 1) */ +#define ERGCON_DSX0 (3 << 16) /* Data Width (External I/O Bank 0) */ +#define ERGCON_DSR1 (3 << 2) /* Data Width (ROM/SRAM/Flash Bank 1) */ +#define ERGCON_DSR0 (3 << 0) /* Data Width (ROM/SRAM/Flash Bank 0) */ + +/* SDRAM Control Register */ +#define SDCON_DBNPTR (0x3ff << 22) /* Last Address Pointer */ +#define SDCON_DBBPTR (0x3ff << 12) /* Base Pointer */ +#define SDCON_DBCAB (3 << 8) /* Column Address Bits */ +#define SDCON_DBBNUM (1 << 3) /* Number of Banks */ +#define SDCON_DBDBW (3 << 1) /* Data Bus Width */ + +/* SDRAM General Control Register */ +#define SDGCON_SDTRC (3 << 2) /* RAS to CAS latency */ +#define SDGCON_SDCAS (3 << 0) /* CAS latency */ + +/* SDRAM Buffer Control Register */ +#define SDBCON_SDESTA (1 << 31) /* SDRAM Engine Status */ +#define SDBCON_RBUFBDIS (1 << 24) /* Read Buffer Burst Enable */ +#define SDBCON_WFIFOEN (1 << 23) /* Write FIFO Enable */ +#define SDBCON_RBUFEN (1 << 22) /* Read Buffer Enable */ +#define SDBCON_FLUSHWFIFO (1 << 21) /* Flush Write FIFO */ +#define SDBCON_RBUFINV (1 << 20) /* Read Buffer Invalidate */ +#define SDBCON_SDINI (3 << 16) /* SDRAM Initialization Control */ +#define SDBCON_SDMODE (0x3fff << 0) /* SDRAM Mode Register Value Program */ + +/* SDRAM Refresh Timer Register */ +#define REFTIM_REFTIM (0xffff << 0) /* Refresh Timer Value */ + + +#endif diff --git a/arch/arm/mach-ks8695/regs-pci.h b/arch/arm/mach-ks8695/regs-pci.h new file mode 100644 index 000000000..75a9db6ed --- /dev/null +++ b/arch/arm/mach-ks8695/regs-pci.h @@ -0,0 +1,53 @@ +/* + * arch/arm/mach-ks8695/include/mach/regs-pci.h + * + * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> + * Copyright (C) 2006 Simtec Electronics + * + * KS8695 - PCI bridge registers and bit definitions. + * + * 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. + */ + +#define KS8695_PCI_OFFSET (0xF0000 + 0x2000) +#define KS8695_PCI_VA (KS8695_IO_VA + KS8695_PCI_OFFSET) +#define KS8695_PCI_PA (KS8695_IO_PA + KS8695_PCI_OFFSET) + + +#define KS8695_CRCFID (0x000) /* Configuration: Identification */ +#define KS8695_CRCFCS (0x004) /* Configuration: Command and Status */ +#define KS8695_CRCFRV (0x008) /* Configuration: Revision */ +#define KS8695_CRCFLT (0x00C) /* Configuration: Latency Timer */ +#define KS8695_CRCBMA (0x010) /* Configuration: Base Memory Address */ +#define KS8695_CRCSID (0x02C) /* Configuration: Subsystem ID */ +#define KS8695_CRCFIT (0x03C) /* Configuration: Interrupt */ +#define KS8695_PBCA (0x100) /* Bridge Configuration Address */ +#define KS8695_PBCD (0x104) /* Bridge Configuration Data */ +#define KS8695_PBM (0x200) /* Bridge Mode */ +#define KS8695_PBCS (0x204) /* Bridge Control and Status */ +#define KS8695_PMBA (0x208) /* Bridge Memory Base Address */ +#define KS8695_PMBAC (0x20C) /* Bridge Memory Base Address Control */ +#define KS8695_PMBAM (0x210) /* Bridge Memory Base Address Mask */ +#define KS8695_PMBAT (0x214) /* Bridge Memory Base Address Translation */ +#define KS8695_PIOBA (0x218) /* Bridge I/O Base Address */ +#define KS8695_PIOBAC (0x21C) /* Bridge I/O Base Address Control */ +#define KS8695_PIOBAM (0x220) /* Bridge I/O Base Address Mask */ +#define KS8695_PIOBAT (0x224) /* Bridge I/O Base Address Translation */ + + +/* Configuration: Identification */ + +/* Configuration: Command and Status */ + +/* Configuration: Revision */ + + + +#define CFRV_GUEST (1 << 23) + +#define PBCA_TYPE1 (1) +#define PBCA_ENABLE (1 << 31) + + diff --git a/arch/arm/mach-ks8695/regs-sys.h b/arch/arm/mach-ks8695/regs-sys.h new file mode 100644 index 000000000..57c20be0c --- /dev/null +++ b/arch/arm/mach-ks8695/regs-sys.h @@ -0,0 +1,34 @@ +/* + * arch/arm/mach-ks8695/include/mach/regs-sys.h + * + * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> + * Copyright (C) 2006 Simtec Electronics + * + * KS8695 - System control registers and bit definitions + * + * 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. + */ + +#ifndef KS8695_SYS_H +#define KS8695_SYS_H + +#define KS8695_SYS_OFFSET (0xF0000 + 0x0000) +#define KS8695_SYS_VA (KS8695_IO_VA + KS8695_SYS_OFFSET) +#define KS8695_SYS_PA (KS8695_IO_PA + KS8695_SYS_OFFSET) + + +#define KS8695_SYSCFG (0x00) /* System Configuration Register */ +#define KS8695_CLKCON (0x04) /* System Clock and Bus Control Register */ + + +/* System Configuration Register */ +#define SYSCFG_SPRBP (0x3ff << 16) /* Register Bank Base Pointer */ + +/* System Clock and Bus Control Register */ +#define CLKCON_SFMODE (1 << 8) /* System Fast Mode for Simulation */ +#define CLKCON_SCDC (7 << 0) /* System Clock Divider Select */ + + +#endif diff --git a/arch/arm/mach-ks8695/regs-wan.h b/arch/arm/mach-ks8695/regs-wan.h new file mode 100644 index 000000000..c475bed22 --- /dev/null +++ b/arch/arm/mach-ks8695/regs-wan.h @@ -0,0 +1,65 @@ +/* + * arch/arm/mach-ks8695/include/mach/regs-wan.h + * + * Copyright (C) 2006 Andrew Victor + * + * KS8695 - WAN Registers and bit definitions. + * + * 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. + */ + +#ifndef KS8695_WAN_H +#define KS8695_WAN_H + +#define KS8695_WAN_OFFSET (0xF0000 + 0x6000) +#define KS8695_WAN_VA (KS8695_IO_VA + KS8695_WAN_OFFSET) +#define KS8695_WAN_PA (KS8695_IO_PA + KS8695_WAN_OFFSET) + + +/* + * WAN registers + */ +#define KS8695_WMDTXC (0x00) /* DMA Transmit Control */ +#define KS8695_WMDRXC (0x04) /* DMA Receive Control */ +#define KS8695_WMDTSC (0x08) /* DMA Transmit Start Command */ +#define KS8695_WMDRSC (0x0c) /* DMA Receive Start Command */ +#define KS8695_WTDLB (0x10) /* Transmit Descriptor List Base Address */ +#define KS8695_WRDLB (0x14) /* Receive Descriptor List Base Address */ +#define KS8695_WMAL (0x18) /* MAC Station Address Low */ +#define KS8695_WMAH (0x1c) /* MAC Station Address High */ +#define KS8695_WMAAL(n) (0x80 + ((n)*8)) /* MAC Additional Station Address (0..15) Low */ +#define KS8695_WMAAH(n) (0x84 + ((n)*8)) /* MAC Additional Station Address (0..15) High */ + + +/* DMA Transmit Control Register */ +#define WMDTXC_WMTRST (1 << 31) /* Soft Reset */ +#define WMDTXC_WMTBS (0x3f << 24) /* Transmit Burst Size */ +#define WMDTXC_WMTUCG (1 << 18) /* Transmit UDP Checksum Generate */ +#define WMDTXC_WMTTCG (1 << 17) /* Transmit TCP Checksum Generate */ +#define WMDTXC_WMTICG (1 << 16) /* Transmit IP Checksum Generate */ +#define WMDTXC_WMTFCE (1 << 9) /* Transmit Flow Control Enable */ +#define WMDTXC_WMTLB (1 << 8) /* Loopback mode */ +#define WMDTXC_WMTEP (1 << 2) /* Transmit Enable Padding */ +#define WMDTXC_WMTAC (1 << 1) /* Transmit Add CRC */ +#define WMDTXC_WMTE (1 << 0) /* TX Enable */ + +/* DMA Receive Control Register */ +#define WMDRXC_WMRBS (0x3f << 24) /* Receive Burst Size */ +#define WMDRXC_WMRUCC (1 << 18) /* Receive UDP Checksum check */ +#define WMDRXC_WMRTCG (1 << 17) /* Receive TCP Checksum check */ +#define WMDRXC_WMRICG (1 << 16) /* Receive IP Checksum check */ +#define WMDRXC_WMRFCE (1 << 9) /* Receive Flow Control Enable */ +#define WMDRXC_WMRB (1 << 6) /* Receive Broadcast */ +#define WMDRXC_WMRM (1 << 5) /* Receive Multicast */ +#define WMDRXC_WMRU (1 << 4) /* Receive Unicast */ +#define WMDRXC_WMRERR (1 << 3) /* Receive Error Frame */ +#define WMDRXC_WMRA (1 << 2) /* Receive All */ +#define WMDRXC_WMRE (1 << 0) /* RX Enable */ + +/* Additional Station Address High */ +#define WMAAH_E (1 << 31) /* Address Enabled */ + + +#endif diff --git a/arch/arm/mach-ks8695/time.c b/arch/arm/mach-ks8695/time.c new file mode 100644 index 000000000..18eb0fbd8 --- /dev/null +++ b/arch/arm/mach-ks8695/time.c @@ -0,0 +1,172 @@ +/* + * arch/arm/mach-ks8695/time.c + * + * Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk> + * Copyright (C) 2006 Simtec Electronics + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/kernel.h> +#include <linux/sched.h> +#include <linux/io.h> +#include <linux/clockchips.h> + +#include <asm/mach/time.h> +#include <asm/system_misc.h> + +#include <mach/regs-irq.h> + +#include "generic.h" + +#define KS8695_TMR_OFFSET (0xF0000 + 0xE400) +#define KS8695_TMR_VA (KS8695_IO_VA + KS8695_TMR_OFFSET) +#define KS8695_TMR_PA (KS8695_IO_PA + KS8695_TMR_OFFSET) + +/* + * Timer registers + */ +#define KS8695_TMCON (0x00) /* Timer Control Register */ +#define KS8695_T1TC (0x04) /* Timer 1 Timeout Count Register */ +#define KS8695_T0TC (0x08) /* Timer 0 Timeout Count Register */ +#define KS8695_T1PD (0x0C) /* Timer 1 Pulse Count Register */ +#define KS8695_T0PD (0x10) /* Timer 0 Pulse Count Register */ + +/* Timer Control Register */ +#define TMCON_T1EN (1 << 1) /* Timer 1 Enable */ +#define TMCON_T0EN (1 << 0) /* Timer 0 Enable */ + +/* Timer0 Timeout Counter Register */ +#define T0TC_WATCHDOG (0xff) /* Enable watchdog mode */ + +static int ks8695_set_periodic(struct clock_event_device *evt) +{ + u32 rate = DIV_ROUND_CLOSEST(KS8695_CLOCK_RATE, HZ); + u32 half = DIV_ROUND_CLOSEST(rate, 2); + u32 tmcon; + + /* Disable timer 1 */ + tmcon = readl_relaxed(KS8695_TMR_VA + KS8695_TMCON); + tmcon &= ~TMCON_T1EN; + writel_relaxed(tmcon, KS8695_TMR_VA + KS8695_TMCON); + + /* Both registers need to count down */ + writel_relaxed(half, KS8695_TMR_VA + KS8695_T1TC); + writel_relaxed(half, KS8695_TMR_VA + KS8695_T1PD); + + /* Re-enable timer1 */ + tmcon |= TMCON_T1EN; + writel_relaxed(tmcon, KS8695_TMR_VA + KS8695_TMCON); + return 0; +} + +static int ks8695_set_next_event(unsigned long cycles, + struct clock_event_device *evt) + +{ + u32 half = DIV_ROUND_CLOSEST(cycles, 2); + u32 tmcon; + + /* Disable timer 1 */ + tmcon = readl_relaxed(KS8695_TMR_VA + KS8695_TMCON); + tmcon &= ~TMCON_T1EN; + writel_relaxed(tmcon, KS8695_TMR_VA + KS8695_TMCON); + + /* Both registers need to count down */ + writel_relaxed(half, KS8695_TMR_VA + KS8695_T1TC); + writel_relaxed(half, KS8695_TMR_VA + KS8695_T1PD); + + /* Re-enable timer1 */ + tmcon |= TMCON_T1EN; + writel_relaxed(tmcon, KS8695_TMR_VA + KS8695_TMCON); + + return 0; +} + +static struct clock_event_device clockevent_ks8695 = { + .name = "ks8695_t1tc", + /* Reasonably fast and accurate clock event */ + .rating = 300, + .features = CLOCK_EVT_FEAT_ONESHOT | + CLOCK_EVT_FEAT_PERIODIC, + .set_next_event = ks8695_set_next_event, + .set_state_periodic = ks8695_set_periodic, +}; + +/* + * IRQ handler for the timer. + */ +static irqreturn_t ks8695_timer_interrupt(int irq, void *dev_id) +{ + struct clock_event_device *evt = &clockevent_ks8695; + + evt->event_handler(evt); + return IRQ_HANDLED; +} + +static struct irqaction ks8695_timer_irq = { + .name = "ks8695_tick", + .flags = IRQF_TIMER, + .handler = ks8695_timer_interrupt, +}; + +static void ks8695_timer_setup(void) +{ + unsigned long tmcon; + + /* Disable timer 0 and 1 */ + tmcon = readl_relaxed(KS8695_TMR_VA + KS8695_TMCON); + tmcon &= ~TMCON_T0EN; + tmcon &= ~TMCON_T1EN; + writel_relaxed(tmcon, KS8695_TMR_VA + KS8695_TMCON); + + /* + * Use timer 1 to fire IRQs on the timeline, minimum 2 cycles + * (one on each counter) maximum 2*2^32, but the API will only + * accept up to a 32bit full word (0xFFFFFFFFU). + */ + clockevents_config_and_register(&clockevent_ks8695, + KS8695_CLOCK_RATE, 2, + 0xFFFFFFFFU); +} + +void __init ks8695_timer_init(void) +{ + ks8695_timer_setup(); + + /* Enable timer interrupts */ + setup_irq(KS8695_IRQ_TIMER1, &ks8695_timer_irq); +} + +void ks8695_restart(enum reboot_mode reboot_mode, const char *cmd) +{ + unsigned int reg; + + if (reboot_mode == REBOOT_SOFT) + soft_restart(0); + + /* disable timer0 */ + reg = readl_relaxed(KS8695_TMR_VA + KS8695_TMCON); + writel_relaxed(reg & ~TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON); + + /* enable watchdog mode */ + writel_relaxed((10 << 8) | T0TC_WATCHDOG, KS8695_TMR_VA + KS8695_T0TC); + + /* re-enable timer0 */ + writel_relaxed(reg | TMCON_T0EN, KS8695_TMR_VA + KS8695_TMCON); +} |