diff options
Diffstat (limited to 'arch/arm/mach-s3c2440/mach-anubis.c')
-rw-r--r-- | arch/arm/mach-s3c2440/mach-anubis.c | 325 |
1 files changed, 325 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2440/mach-anubis.c b/arch/arm/mach-s3c2440/mach-anubis.c new file mode 100644 index 00000000000..3f0288eb1ed --- /dev/null +++ b/arch/arm/mach-s3c2440/mach-anubis.c @@ -0,0 +1,325 @@ +/* linux/arch/arm/mach-s3c2440/mach-anubis.c + * + * Copyright (c) 2003-2005 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * 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. +*/ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/interrupt.h> +#include <linux/list.h> +#include <linux/timer.h> +#include <linux/init.h> +#include <linux/serial_core.h> +#include <linux/platform_device.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <asm/arch/anubis-map.h> +#include <asm/arch/anubis-irq.h> +#include <asm/arch/anubis-cpld.h> + +#include <asm/hardware.h> +#include <asm/io.h> +#include <asm/irq.h> +#include <asm/mach-types.h> + +#include <asm/arch/regs-serial.h> +#include <asm/arch/regs-gpio.h> +#include <asm/arch/regs-mem.h> +#include <asm/arch/regs-lcd.h> +#include <asm/arch/nand.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/nand_ecc.h> +#include <linux/mtd/partitions.h> + +#include <asm/plat-s3c24xx/clock.h> +#include <asm/plat-s3c24xx/devs.h> +#include <asm/plat-s3c24xx/cpu.h> + +#define COPYRIGHT ", (c) 2005 Simtec Electronics" + +static struct map_desc anubis_iodesc[] __initdata = { + /* ISA IO areas */ + + { + .virtual = (u32)S3C24XX_VA_ISA_BYTE, + .pfn = __phys_to_pfn(0x0), + .length = SZ_4M, + .type = MT_DEVICE, + }, { + .virtual = (u32)S3C24XX_VA_ISA_WORD, + .pfn = __phys_to_pfn(0x0), + .length = SZ_4M, + .type = MT_DEVICE, + }, + + /* we could possibly compress the next set down into a set of smaller tables + * pagetables, but that would mean using an L2 section, and it still means + * we cannot actually feed the same register to an LDR due to 16K spacing + */ + + /* CPLD control registers */ + + { + .virtual = (u32)ANUBIS_VA_CTRL1, + .pfn = __phys_to_pfn(ANUBIS_PA_CTRL1), + .length = SZ_4K, + .type = MT_DEVICE, + }, { + .virtual = (u32)ANUBIS_VA_CTRL2, + .pfn = __phys_to_pfn(ANUBIS_PA_CTRL2), + .length = SZ_4K, + .type = MT_DEVICE, + }, +}; + +#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK +#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB +#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE + +static struct s3c24xx_uart_clksrc anubis_serial_clocks[] = { + [0] = { + .name = "uclk", + .divisor = 1, + .min_baud = 0, + .max_baud = 0, + }, + [1] = { + .name = "pclk", + .divisor = 1, + .min_baud = 0, + .max_baud = 0, + } +}; + + +static struct s3c2410_uartcfg anubis_uartcfgs[] __initdata = { + [0] = { + .hwport = 0, + .flags = 0, + .ucon = UCON, + .ulcon = ULCON, + .ufcon = UFCON, + .clocks = anubis_serial_clocks, + .clocks_size = ARRAY_SIZE(anubis_serial_clocks), + }, + [1] = { + .hwport = 2, + .flags = 0, + .ucon = UCON, + .ulcon = ULCON, + .ufcon = UFCON, + .clocks = anubis_serial_clocks, + .clocks_size = ARRAY_SIZE(anubis_serial_clocks), + }, +}; + +/* NAND Flash on Anubis board */ + +static int external_map[] = { 2 }; +static int chip0_map[] = { 0 }; +static int chip1_map[] = { 1 }; + +static struct mtd_partition anubis_default_nand_part[] = { + [0] = { + .name = "Boot Agent", + .size = SZ_16K, + .offset = 0, + }, + [1] = { + .name = "/boot", + .size = SZ_4M - SZ_16K, + .offset = SZ_16K, + }, + [2] = { + .name = "user1", + .offset = SZ_4M, + .size = SZ_32M - SZ_4M, + }, + [3] = { + .name = "user2", + .offset = SZ_32M, + .size = MTDPART_SIZ_FULL, + } +}; + +/* the Anubis has 3 selectable slots for nand-flash, the two + * on-board chip areas, as well as the external slot. + * + * Note, there is no current hot-plug support for the External + * socket. +*/ + +static struct s3c2410_nand_set anubis_nand_sets[] = { + [1] = { + .name = "External", + .nr_chips = 1, + .nr_map = external_map, + .nr_partitions = ARRAY_SIZE(anubis_default_nand_part), + .partitions = anubis_default_nand_part, + }, + [0] = { + .name = "chip0", + .nr_chips = 1, + .nr_map = chip0_map, + .nr_partitions = ARRAY_SIZE(anubis_default_nand_part), + .partitions = anubis_default_nand_part, + }, + [2] = { + .name = "chip1", + .nr_chips = 1, + .nr_map = chip1_map, + .nr_partitions = ARRAY_SIZE(anubis_default_nand_part), + .partitions = anubis_default_nand_part, + }, +}; + +static void anubis_nand_select(struct s3c2410_nand_set *set, int slot) +{ + unsigned int tmp; + + slot = set->nr_map[slot] & 3; + + pr_debug("anubis_nand: selecting slot %d (set %p,%p)\n", + slot, set, set->nr_map); + + tmp = __raw_readb(ANUBIS_VA_CTRL1); + tmp &= ~ANUBIS_CTRL1_NANDSEL; + tmp |= slot; + + pr_debug("anubis_nand: ctrl1 now %02x\n", tmp); + + __raw_writeb(tmp, ANUBIS_VA_CTRL1); +} + +static struct s3c2410_platform_nand anubis_nand_info = { + .tacls = 25, + .twrph0 = 55, + .twrph1 = 40, + .nr_sets = ARRAY_SIZE(anubis_nand_sets), + .sets = anubis_nand_sets, + .select_chip = anubis_nand_select, +}; + +/* IDE channels */ + +static struct resource anubis_ide0_resource[] = { + { + .start = S3C2410_CS3, + .end = S3C2410_CS3 + (8*32) - 1, + .flags = IORESOURCE_MEM, + }, { + .start = S3C2410_CS3 + (1<<26), + .end = S3C2410_CS3 + (1<<26) + (8*32) - 1, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_IDE0, + .end = IRQ_IDE0, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device anubis_device_ide0 = { + .name = "simtec-ide", + .id = 0, + .num_resources = ARRAY_SIZE(anubis_ide0_resource), + .resource = anubis_ide0_resource, +}; + +static struct resource anubis_ide1_resource[] = { + { + .start = S3C2410_CS4, + .end = S3C2410_CS4 + (8*32) - 1, + .flags = IORESOURCE_MEM, + }, { + .start = S3C2410_CS4 + (1<<26), + .end = S3C2410_CS4 + (1<<26) + (8*32) - 1, + .flags = IORESOURCE_MEM, + }, { + .start = IRQ_IDE0, + .end = IRQ_IDE0, + .flags = IORESOURCE_IRQ, + }, +}; + + +static struct platform_device anubis_device_ide1 = { + .name = "simtec-ide", + .id = 1, + .num_resources = ARRAY_SIZE(anubis_ide1_resource), + .resource = anubis_ide1_resource, +}; + +/* Standard Anubis devices */ + +static struct platform_device *anubis_devices[] __initdata = { + &s3c_device_usb, + &s3c_device_wdt, + &s3c_device_adc, + &s3c_device_i2c, + &s3c_device_rtc, + &s3c_device_nand, + &anubis_device_ide0, + &anubis_device_ide1, +}; + +static struct clk *anubis_clocks[] = { + &s3c24xx_dclk0, + &s3c24xx_dclk1, + &s3c24xx_clkout0, + &s3c24xx_clkout1, + &s3c24xx_uclk, +}; + +static struct s3c24xx_board anubis_board __initdata = { + .devices = anubis_devices, + .devices_count = ARRAY_SIZE(anubis_devices), + .clocks = anubis_clocks, + .clocks_count = ARRAY_SIZE(anubis_clocks), +}; + +static void __init anubis_map_io(void) +{ + /* initialise the clocks */ + + s3c24xx_dclk0.parent = NULL; + s3c24xx_dclk0.rate = 12*1000*1000; + + s3c24xx_dclk1.parent = NULL; + s3c24xx_dclk1.rate = 24*1000*1000; + + s3c24xx_clkout0.parent = &s3c24xx_dclk0; + s3c24xx_clkout1.parent = &s3c24xx_dclk1; + + s3c24xx_uclk.parent = &s3c24xx_clkout1; + + s3c_device_nand.dev.platform_data = &anubis_nand_info; + + s3c24xx_init_io(anubis_iodesc, ARRAY_SIZE(anubis_iodesc)); + s3c24xx_init_clocks(0); + s3c24xx_init_uarts(anubis_uartcfgs, ARRAY_SIZE(anubis_uartcfgs)); + s3c24xx_set_board(&anubis_board); + + /* ensure that the GPIO is setup */ + s3c2410_gpio_setpin(S3C2410_GPA0, 1); +} + +MACHINE_START(ANUBIS, "Simtec-Anubis") + /* Maintainer: Ben Dooks <ben@simtec.co.uk> */ + .phys_io = S3C2410_PA_UART, + .io_pg_offst = (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc, + .boot_params = S3C2410_SDRAM_PA + 0x100, + .map_io = anubis_map_io, + .init_irq = s3c24xx_init_irq, + .timer = &s3c24xx_timer, +MACHINE_END |