diff options
Diffstat (limited to 'kernel/arch/arm/mach-s3c24xx/mach-anubis.c')
| -rw-r--r-- | kernel/arch/arm/mach-s3c24xx/mach-anubis.c | 433 |
1 files changed, 433 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-s3c24xx/mach-anubis.c b/kernel/arch/arm/mach-s3c24xx/mach-anubis.c new file mode 100644 index 000000000..d03df0df0 --- /dev/null +++ b/kernel/arch/arm/mach-s3c24xx/mach-anubis.c @@ -0,0 +1,433 @@ +/* linux/arch/arm/mach-s3c2440/mach-anubis.c + * + * Copyright 2003-2009 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/gpio.h> +#include <linux/serial_core.h> +#include <linux/serial_s3c.h> +#include <linux/platform_device.h> +#include <linux/ata_platform.h> +#include <linux/i2c.h> +#include <linux/io.h> +#include <linux/sm501.h> +#include <linux/sm501-regs.h> + +#include <asm/mach/arch.h> +#include <asm/mach/map.h> +#include <asm/mach/irq.h> + +#include <mach/hardware.h> +#include <asm/irq.h> +#include <asm/mach-types.h> + +#include <mach/regs-gpio.h> +#include <mach/regs-lcd.h> +#include <mach/gpio-samsung.h> +#include <linux/platform_data/mtd-nand-s3c2410.h> +#include <linux/platform_data/i2c-s3c2410.h> + +#include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/nand_ecc.h> +#include <linux/mtd/partitions.h> + +#include <net/ax88796.h> + +#include <plat/devs.h> +#include <plat/cpu.h> +#include <linux/platform_data/asoc-s3c24xx_simtec.h> +#include <plat/samsung-time.h> + +#include "anubis.h" +#include "common.h" +#include "simtec.h" + +#define COPYRIGHT ", Copyright 2005-2009 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_IDREG, + .pfn = __phys_to_pfn(ANUBIS_PA_IDREG), + .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 s3c2410_uartcfg anubis_uartcfgs[] __initdata = { + [0] = { + .hwport = 0, + .flags = 0, + .ucon = UCON, + .ulcon = ULCON, + .ufcon = UFCON, + .clk_sel = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2, + }, + [1] = { + .hwport = 2, + .flags = 0, + .ucon = UCON, + .ulcon = ULCON, + .ufcon = UFCON, + .clk_sel = S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2, + }, +}; + +/* NAND Flash on Anubis board */ + +static int external_map[] = { 2 }; +static int chip0_map[] = { 0 }; +static int chip1_map[] = { 1 }; + +static struct mtd_partition __initdata 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, + } +}; + +static struct mtd_partition __initdata anubis_default_nand_part_large[] = { + [0] = { + .name = "Boot Agent", + .size = SZ_128K, + .offset = 0, + }, + [1] = { + .name = "/boot", + .size = SZ_4M - SZ_128K, + .offset = SZ_128K, + }, + [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 __initdata 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 __initdata 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 pata_platform_info anubis_ide_platdata = { + .ioport_shift = 5, +}; + +static struct resource anubis_ide0_resource[] = { + [0] = DEFINE_RES_MEM(S3C2410_CS3, 8 * 32), + [2] = DEFINE_RES_MEM(S3C2410_CS3 + (1 << 26) + (6 * 32), 32), + [3] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0), +}; + +static struct platform_device anubis_device_ide0 = { + .name = "pata_platform", + .id = 0, + .num_resources = ARRAY_SIZE(anubis_ide0_resource), + .resource = anubis_ide0_resource, + .dev = { + .platform_data = &anubis_ide_platdata, + .coherent_dma_mask = ~0, + }, +}; + +static struct resource anubis_ide1_resource[] = { + [0] = DEFINE_RES_MEM(S3C2410_CS4, 8 * 32), + [1] = DEFINE_RES_MEM(S3C2410_CS4 + (1 << 26) + (6 * 32), 32), + [2] = DEFINE_RES_IRQ(ANUBIS_IRQ_IDE0), +}; + +static struct platform_device anubis_device_ide1 = { + .name = "pata_platform", + .id = 1, + .num_resources = ARRAY_SIZE(anubis_ide1_resource), + .resource = anubis_ide1_resource, + .dev = { + .platform_data = &anubis_ide_platdata, + .coherent_dma_mask = ~0, + }, +}; + +/* Asix AX88796 10/100 ethernet controller */ + +static struct ax_plat_data anubis_asix_platdata = { + .flags = AXFLG_MAC_FROMDEV, + .wordlength = 2, + .dcr_val = 0x48, + .rcr_val = 0x40, +}; + +static struct resource anubis_asix_resource[] = { + [0] = DEFINE_RES_MEM(S3C2410_CS5, 0x20 * 0x20), + [1] = DEFINE_RES_IRQ(ANUBIS_IRQ_ASIX), +}; + +static struct platform_device anubis_device_asix = { + .name = "ax88796", + .id = 0, + .num_resources = ARRAY_SIZE(anubis_asix_resource), + .resource = anubis_asix_resource, + .dev = { + .platform_data = &anubis_asix_platdata, + } +}; + +/* SM501 */ + +static struct resource anubis_sm501_resource[] = { + [0] = DEFINE_RES_MEM(S3C2410_CS2, SZ_8M), + [1] = DEFINE_RES_MEM(S3C2410_CS2 + SZ_64M - SZ_2M, SZ_2M), + [2] = DEFINE_RES_IRQ(IRQ_EINT0), +}; + +static struct sm501_initdata anubis_sm501_initdata = { + .gpio_high = { + .set = 0x3F000000, /* 24bit panel */ + .mask = 0x0, + }, + .misc_timing = { + .set = 0x010100, /* SDRAM timing */ + .mask = 0x1F1F00, + }, + .misc_control = { + .set = SM501_MISC_PNL_24BIT, + .mask = 0, + }, + + .devices = SM501_USE_GPIO, + + /* set the SDRAM and bus clocks */ + .mclk = 72 * MHZ, + .m1xclk = 144 * MHZ, +}; + +static struct sm501_platdata_gpio_i2c anubis_sm501_gpio_i2c[] = { + [0] = { + .bus_num = 1, + .pin_scl = 44, + .pin_sda = 45, + }, + [1] = { + .bus_num = 2, + .pin_scl = 40, + .pin_sda = 41, + }, +}; + +static struct sm501_platdata anubis_sm501_platdata = { + .init = &anubis_sm501_initdata, + .gpio_base = -1, + .gpio_i2c = anubis_sm501_gpio_i2c, + .gpio_i2c_nr = ARRAY_SIZE(anubis_sm501_gpio_i2c), +}; + +static struct platform_device anubis_device_sm501 = { + .name = "sm501", + .id = 0, + .num_resources = ARRAY_SIZE(anubis_sm501_resource), + .resource = anubis_sm501_resource, + .dev = { + .platform_data = &anubis_sm501_platdata, + }, +}; + +/* Standard Anubis devices */ + +static struct platform_device *anubis_devices[] __initdata = { + &s3c2410_device_dclk, + &s3c_device_ohci, + &s3c_device_wdt, + &s3c_device_adc, + &s3c_device_i2c0, + &s3c_device_rtc, + &s3c_device_nand, + &anubis_device_ide0, + &anubis_device_ide1, + &anubis_device_asix, + &anubis_device_sm501, +}; + +/* I2C devices. */ + +static struct i2c_board_info anubis_i2c_devs[] __initdata = { + { + I2C_BOARD_INFO("tps65011", 0x48), + .irq = IRQ_EINT20, + } +}; + +/* Audio setup */ +static struct s3c24xx_audio_simtec_pdata __initdata anubis_audio = { + .have_mic = 1, + .have_lout = 1, + .output_cdclk = 1, + .use_mpllin = 1, + .amp_gpio = S3C2410_GPB(2), + .amp_gain[0] = S3C2410_GPD(10), + .amp_gain[1] = S3C2410_GPD(11), +}; + +static void __init anubis_map_io(void) +{ + s3c24xx_init_io(anubis_iodesc, ARRAY_SIZE(anubis_iodesc)); + s3c24xx_init_uarts(anubis_uartcfgs, ARRAY_SIZE(anubis_uartcfgs)); + samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4); + + /* check for the newer revision boards with large page nand */ + + if ((__raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK) >= 4) { + printk(KERN_INFO "ANUBIS-B detected (revision %d)\n", + __raw_readb(ANUBIS_VA_IDREG) & ANUBIS_IDREG_REVMASK); + anubis_nand_sets[0].partitions = anubis_default_nand_part_large; + anubis_nand_sets[0].nr_partitions = ARRAY_SIZE(anubis_default_nand_part_large); + } else { + /* ensure that the GPIO is setup */ + gpio_request_one(S3C2410_GPA(0), GPIOF_OUT_INIT_HIGH, NULL); + gpio_free(S3C2410_GPA(0)); + } +} + +static void __init anubis_init_time(void) +{ + s3c2440_init_clocks(12000000); + samsung_timer_init(); +} + +static void __init anubis_init(void) +{ + s3c_i2c0_set_platdata(NULL); + s3c_nand_set_platdata(&anubis_nand_info); + simtec_audio_add(NULL, false, &anubis_audio); + + platform_add_devices(anubis_devices, ARRAY_SIZE(anubis_devices)); + + i2c_register_board_info(0, anubis_i2c_devs, + ARRAY_SIZE(anubis_i2c_devs)); +} + + +MACHINE_START(ANUBIS, "Simtec-Anubis") + /* Maintainer: Ben Dooks <ben@simtec.co.uk> */ + .atag_offset = 0x100, + .map_io = anubis_map_io, + .init_machine = anubis_init, + .init_irq = s3c2440_init_irq, + .init_time = anubis_init_time, +MACHINE_END |