diff options
Diffstat (limited to 'arch/arm/mach-nomadik/board-nhk8815.c')
| -rw-r--r-- | arch/arm/mach-nomadik/board-nhk8815.c | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/arch/arm/mach-nomadik/board-nhk8815.c b/arch/arm/mach-nomadik/board-nhk8815.c new file mode 100644 index 00000000..13993035 --- /dev/null +++ b/arch/arm/mach-nomadik/board-nhk8815.c @@ -0,0 +1,284 @@ +/* + * linux/arch/arm/mach-nomadik/board-8815nhk.c + * + * Copyright (C) STMicroelectronics + * + * 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. + * + * NHK15 board specifc driver definition + */ +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/platform_device.h> +#include <linux/amba/bus.h> +#include <linux/interrupt.h> +#include <linux/gpio.h> +#include <linux/mtd/mtd.h> +#include <linux/mtd/nand.h> +#include <linux/mtd/onenand.h> +#include <linux/mtd/partitions.h> +#include <linux/io.h> +#include <asm/sizes.h> +#include <asm/mach-types.h> +#include <asm/mach/arch.h> +#include <asm/mach/irq.h> +#include <asm/mach/flash.h> + +#include <plat/mtu.h> + +#include <mach/setup.h> +#include <mach/nand.h> +#include <mach/fsmc.h> + +/* Initial value for SRC control register: all timers use MXTAL/8 source */ +#define SRC_CR_INIT_MASK 0x00007fff +#define SRC_CR_INIT_VAL 0x2aaa8000 + +/* These addresses span 16MB, so use three individual pages */ +static struct resource nhk8815_nand_resources[] = { + { + .name = "nand_addr", + .start = NAND_IO_ADDR, + .end = NAND_IO_ADDR + 0xfff, + .flags = IORESOURCE_MEM, + }, { + .name = "nand_cmd", + .start = NAND_IO_CMD, + .end = NAND_IO_CMD + 0xfff, + .flags = IORESOURCE_MEM, + }, { + .name = "nand_data", + .start = NAND_IO_DATA, + .end = NAND_IO_DATA + 0xfff, + .flags = IORESOURCE_MEM, + } +}; + +static int nhk8815_nand_init(void) +{ + /* FSMC setup for nand chip select (8-bit nand in 8815NHK) */ + writel(0x0000000E, FSMC_PCR(0)); + writel(0x000D0A00, FSMC_PMEM(0)); + writel(0x00100A00, FSMC_PATT(0)); + + /* enable access to the chip select area */ + writel(readl(FSMC_PCR(0)) | 0x04, FSMC_PCR(0)); + + return 0; +} + +/* + * These partitions are the same as those used in the 2.6.20 release + * shipped by the vendor; the first two partitions are mandated + * by the boot ROM, and the bootloader area is somehow oversized... + */ +static struct mtd_partition nhk8815_partitions[] = { + { + .name = "X-Loader(NAND)", + .offset = 0, + .size = SZ_256K, + }, { + .name = "MemInit(NAND)", + .offset = MTDPART_OFS_APPEND, + .size = SZ_256K, + }, { + .name = "BootLoader(NAND)", + .offset = MTDPART_OFS_APPEND, + .size = SZ_2M, + }, { + .name = "Kernel zImage(NAND)", + .offset = MTDPART_OFS_APPEND, + .size = 3 * SZ_1M, + }, { + .name = "Root Filesystem(NAND)", + .offset = MTDPART_OFS_APPEND, + .size = 22 * SZ_1M, + }, { + .name = "User Filesystem(NAND)", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + } +}; + +static struct nomadik_nand_platform_data nhk8815_nand_data = { + .parts = nhk8815_partitions, + .nparts = ARRAY_SIZE(nhk8815_partitions), + .options = NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING \ + | NAND_NO_READRDY | NAND_NO_AUTOINCR, + .init = nhk8815_nand_init, +}; + +static struct platform_device nhk8815_nand_device = { + .name = "nomadik_nand", + .dev = { + .platform_data = &nhk8815_nand_data, + }, + .resource = nhk8815_nand_resources, + .num_resources = ARRAY_SIZE(nhk8815_nand_resources), +}; + +/* These are the partitions for the OneNand device, different from above */ +static struct mtd_partition nhk8815_onenand_partitions[] = { + { + .name = "X-Loader(OneNAND)", + .offset = 0, + .size = SZ_256K, + }, { + .name = "MemInit(OneNAND)", + .offset = MTDPART_OFS_APPEND, + .size = SZ_256K, + }, { + .name = "BootLoader(OneNAND)", + .offset = MTDPART_OFS_APPEND, + .size = SZ_2M-SZ_256K, + }, { + .name = "SysImage(OneNAND)", + .offset = MTDPART_OFS_APPEND, + .size = 4 * SZ_1M, + }, { + .name = "Root Filesystem(OneNAND)", + .offset = MTDPART_OFS_APPEND, + .size = 22 * SZ_1M, + }, { + .name = "User Filesystem(OneNAND)", + .offset = MTDPART_OFS_APPEND, + .size = MTDPART_SIZ_FULL, + } +}; + +static struct onenand_platform_data nhk8815_onenand_data = { + .parts = nhk8815_onenand_partitions, + .nr_parts = ARRAY_SIZE(nhk8815_onenand_partitions), +}; + +static struct resource nhk8815_onenand_resource[] = { + { + .start = 0x30000000, + .end = 0x30000000 + SZ_128K - 1, + .flags = IORESOURCE_MEM, + }, +}; + +static struct platform_device nhk8815_onenand_device = { + .name = "onenand-flash", + .id = -1, + .dev = { + .platform_data = &nhk8815_onenand_data, + }, + .resource = nhk8815_onenand_resource, + .num_resources = ARRAY_SIZE(nhk8815_onenand_resource), +}; + +static void __init nhk8815_onenand_init(void) +{ +#ifdef CONFIG_MTD_ONENAND + /* Set up SMCS0 for OneNand */ + writel(0x000030db, FSMC_BCR(0)); + writel(0x02100551, FSMC_BTR(0)); +#endif +} + +#define __MEM_4K_RESOURCE(x) \ + .res = {.start = (x), .end = (x) + SZ_4K - 1, .flags = IORESOURCE_MEM} + +static struct amba_device uart0_device = { + .dev = { .init_name = "uart0" }, + __MEM_4K_RESOURCE(NOMADIK_UART0_BASE), + .irq = {IRQ_UART0, NO_IRQ}, +}; + +static struct amba_device uart1_device = { + .dev = { .init_name = "uart1" }, + __MEM_4K_RESOURCE(NOMADIK_UART1_BASE), + .irq = {IRQ_UART1, NO_IRQ}, +}; + +static struct amba_device *amba_devs[] __initdata = { + &uart0_device, + &uart1_device, +}; + +static struct resource nhk8815_eth_resources[] = { + { + .name = "smc91x-regs", + .start = 0x34000000 + 0x300, + .end = 0x34000000 + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, { + .start = NOMADIK_GPIO_TO_IRQ(115), + .end = NOMADIK_GPIO_TO_IRQ(115), + .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING, + } +}; + +static struct platform_device nhk8815_eth_device = { + .name = "smc91x", + .resource = nhk8815_eth_resources, + .num_resources = ARRAY_SIZE(nhk8815_eth_resources), +}; + +static int __init nhk8815_eth_init(void) +{ + int gpio_nr = 115; /* hardwired in the board */ + int err; + + err = gpio_request(gpio_nr, "eth_irq"); + if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO); + if (!err) err = gpio_direction_input(gpio_nr); + if (err) + pr_err("Error %i in %s\n", err, __func__); + return err; +} +device_initcall(nhk8815_eth_init); + +static struct platform_device *nhk8815_platform_devices[] __initdata = { + &nhk8815_nand_device, + &nhk8815_onenand_device, + &nhk8815_eth_device, + /* will add more devices */ +}; + +static void __init nomadik_timer_init(void) +{ + u32 src_cr; + + /* Configure timer sources in "system reset controller" ctrl reg */ + src_cr = readl(io_p2v(NOMADIK_SRC_BASE)); + src_cr &= SRC_CR_INIT_MASK; + src_cr |= SRC_CR_INIT_VAL; + writel(src_cr, io_p2v(NOMADIK_SRC_BASE)); + + /* Save global pointer to mtu, used by platform timer code */ + mtu_base = io_p2v(NOMADIK_MTU0_BASE); + + nmdk_timer_init(); +} + +static struct sys_timer nomadik_timer = { + .init = nomadik_timer_init, +}; + +static void __init nhk8815_platform_init(void) +{ + int i; + + cpu8815_platform_init(); + nhk8815_onenand_init(); + platform_add_devices(nhk8815_platform_devices, + ARRAY_SIZE(nhk8815_platform_devices)); + + for (i = 0; i < ARRAY_SIZE(amba_devs); i++) + amba_device_register(amba_devs[i], &iomem_resource); +} + +MACHINE_START(NOMADIK, "NHK8815") + /* Maintainer: ST MicroElectronics */ + .boot_params = 0x100, + .map_io = cpu8815_map_io, + .init_irq = cpu8815_init_irq, + .timer = &nomadik_timer, + .init_machine = nhk8815_platform_init, +MACHINE_END |