arch/arm/mach-nomadik/board-nhk8815.c

   1 /*
   2  *  linux/arch/arm/mach-nomadik/board-8815nhk.c
   3  *
   4  *  Copyright (C) STMicroelectronics
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2, as
   8  * published by the Free Software Foundation.
   9  *
  10  *  NHK15 board specifc driver definition
  11  */
  12 #include <linux/types.h>
  13 #include <linux/kernel.h>
  14 #include <linux/init.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/amba/bus.h>
  17 #include <linux/amba/mmci.h>
  18 #include <linux/interrupt.h>
  19 #include <linux/gpio.h>
  20 #include <linux/mtd/mtd.h>
  21 #include <linux/mtd/nand.h>
  22 #include <linux/mtd/onenand.h>
  23 #include <linux/mtd/partitions.h>
  24 #include <linux/i2c.h>
  25 #include <linux/io.h>
  26 #include <linux/pinctrl/machine.h>
  27 #include <linux/platform_data/pinctrl-nomadik.h>
  28 #include <linux/platform_data/clocksource-nomadik-mtu.h>
  29 #include <linux/platform_data/mtd-nomadik-nand.h>
  30 #include <asm/hardware/vic.h>
  31 #include <asm/sizes.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/flash.h>
  35 #include <asm/mach/time.h>
  36 #include <mach/fsmc.h>
  37 #include <mach/irqs.h>
  38
  39 #include "cpu-8815.h"
  40
  41 /* Initial value for SRC control register: all timers use MXTAL/8 source */
  42 #define SRC_CR_INIT_MASK        0x00007fff
  43 #define SRC_CR_INIT_VAL         0x2aaa8000
  44
  45 /* These addresses span 16MB, so use three individual pages */
  46 static struct resource nhk8815_nand_resources[] = {
  47         {
  48                 .name = "nand_addr",
  49                 .start = NAND_IO_ADDR,
  50                 .end = NAND_IO_ADDR + 0xfff,
  51                 .flags = IORESOURCE_MEM,
  52         }, {
  53                 .name = "nand_cmd",
  54                 .start = NAND_IO_CMD,
  55                 .end = NAND_IO_CMD + 0xfff,
  56                 .flags = IORESOURCE_MEM,
  57         }, {
  58                 .name = "nand_data",
  59                 .start = NAND_IO_DATA,
  60                 .end = NAND_IO_DATA + 0xfff,
  61                 .flags = IORESOURCE_MEM,
  62         }
  63 };
  64
  65 static int nhk8815_nand_init(void)
  66 {
  67         /* FSMC setup for nand chip select (8-bit nand in 8815NHK) */
  68         writel(0x0000000E, FSMC_PCR(0));
  69         writel(0x000D0A00, FSMC_PMEM(0));
  70         writel(0x00100A00, FSMC_PATT(0));
  71
  72         /* enable access to the chip select area */
  73         writel(readl(FSMC_PCR(0)) | 0x04, FSMC_PCR(0));
  74
  75         return 0;
  76 }
  77
  78 /*
  79  * These partitions are the same as those used in the 2.6.20 release
  80  * shipped by the vendor; the first two partitions are mandated
  81  * by the boot ROM, and the bootloader area is somehow oversized...
  82  */
  83 static struct mtd_partition nhk8815_partitions[] = {
  84         {
  85                 .name   = "X-Loader(NAND)",
  86                 .offset = 0,
  87                 .size   = SZ_256K,
  88         }, {
  89                 .name   = "MemInit(NAND)",
  90                 .offset = MTDPART_OFS_APPEND,
  91                 .size   = SZ_256K,
  92         }, {
  93                 .name   = "BootLoader(NAND)",
  94                 .offset = MTDPART_OFS_APPEND,
  95                 .size   = SZ_2M,
  96         }, {
  97                 .name   = "Kernel zImage(NAND)",
  98                 .offset = MTDPART_OFS_APPEND,
  99                 .size   = 3 * SZ_1M,
 100         }, {
 101                 .name   = "Root Filesystem(NAND)",
 102                 .offset = MTDPART_OFS_APPEND,
 103                 .size   = 22 * SZ_1M,
 104         }, {
 105                 .name   = "User Filesystem(NAND)",
 106                 .offset = MTDPART_OFS_APPEND,
 107                 .size   = MTDPART_SIZ_FULL,
 108         }
 109 };
 110
 111 static struct nomadik_nand_platform_data nhk8815_nand_data = {
 112         .parts          = nhk8815_partitions,
 113         .nparts         = ARRAY_SIZE(nhk8815_partitions),
 114         .options        = NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING,
 115         .init           = nhk8815_nand_init,
 116 };
 117
 118 static struct platform_device nhk8815_nand_device = {
 119         .name           = "nomadik_nand",
 120         .dev            = {
 121                 .platform_data = &nhk8815_nand_data,
 122         },
 123         .resource       = nhk8815_nand_resources,
 124         .num_resources  = ARRAY_SIZE(nhk8815_nand_resources),
 125 };
 126
 127 /* These are the partitions for the OneNand device, different from above */
 128 static struct mtd_partition nhk8815_onenand_partitions[] = {
 129         {
 130                 .name   = "X-Loader(OneNAND)",
 131                 .offset = 0,
 132                 .size   = SZ_256K,
 133         }, {
 134                 .name   = "MemInit(OneNAND)",
 135                 .offset = MTDPART_OFS_APPEND,
 136                 .size   = SZ_256K,
 137         }, {
 138                 .name   = "BootLoader(OneNAND)",
 139                 .offset = MTDPART_OFS_APPEND,
 140                 .size   = SZ_2M-SZ_256K,
 141         }, {
 142                 .name   = "SysImage(OneNAND)",
 143                 .offset = MTDPART_OFS_APPEND,
 144                 .size   = 4 * SZ_1M,
 145         }, {
 146                 .name   = "Root Filesystem(OneNAND)",
 147                 .offset = MTDPART_OFS_APPEND,
 148                 .size   = 22 * SZ_1M,
 149         }, {
 150                 .name   = "User Filesystem(OneNAND)",
 151                 .offset = MTDPART_OFS_APPEND,
 152                 .size   = MTDPART_SIZ_FULL,
 153         }
 154 };
 155
 156 static struct onenand_platform_data nhk8815_onenand_data = {
 157         .parts          = nhk8815_onenand_partitions,
 158         .nr_parts       = ARRAY_SIZE(nhk8815_onenand_partitions),
 159 };
 160
 161 static struct resource nhk8815_onenand_resource[] = {
 162         {
 163                 .start          = 0x30000000,
 164                 .end            = 0x30000000 + SZ_128K - 1,
 165                 .flags          = IORESOURCE_MEM,
 166         },
 167 };
 168
 169 static struct platform_device nhk8815_onenand_device = {
 170         .name           = "onenand-flash",
 171         .id             = -1,
 172         .dev            = {
 173                 .platform_data  = &nhk8815_onenand_data,
 174         },
 175         .resource       = nhk8815_onenand_resource,
 176         .num_resources  = ARRAY_SIZE(nhk8815_onenand_resource),
 177 };
 178
 179 static void __init nhk8815_onenand_init(void)
 180 {
 181 #ifdef CONFIG_MTD_ONENAND
 182        /* Set up SMCS0 for OneNand */
 183         writel(0x000030db, FSMC_BCR(0));
 184         writel(0x02100551, FSMC_BTR(0));
 185 #endif
 186 }
 187
 188 static struct mmci_platform_data mmcsd_plat_data = {
 189         .ocr_mask = MMC_VDD_29_30,
 190         .f_max = 48000000,
 191         .gpio_wp = -1,
 192         .gpio_cd = 111,
 193         .cd_invert = true,
 194         .capabilities = MMC_CAP_MMC_HIGHSPEED |
 195         MMC_CAP_SD_HIGHSPEED | MMC_CAP_4_BIT_DATA,
 196 };
 197
 198 static int __init nhk8815_mmcsd_init(void)
 199 {
 200         int ret;
 201
 202         ret = gpio_request(112, "card detect bias");
 203         if (ret)
 204                 return ret;
 205         gpio_direction_output(112, 0);
 206         amba_apb_device_add(NULL, "mmci", NOMADIK_SDI_BASE, SZ_4K, IRQ_SDMMC, 0, &mmcsd_plat_data, 0x10180180);
 207         return 0;
 208 }
 209 module_init(nhk8815_mmcsd_init);
 210
 211 static struct resource nhk8815_eth_resources[] = {
 212         {
 213                 .name = "smc91x-regs",
 214                 .start = 0x34000000 + 0x300,
 215                 .end = 0x34000000 + SZ_64K - 1,
 216                 .flags = IORESOURCE_MEM,
 217         }, {
 218                 .start = NOMADIK_GPIO_TO_IRQ(115),
 219                 .end = NOMADIK_GPIO_TO_IRQ(115),
 220                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 221         }
 222 };
 223
 224 static struct platform_device nhk8815_eth_device = {
 225         .name = "smc91x",
 226         .resource = nhk8815_eth_resources,
 227         .num_resources = ARRAY_SIZE(nhk8815_eth_resources),
 228 };
 229
 230 static int __init nhk8815_eth_init(void)
 231 {
 232         int gpio_nr = 115; /* hardwired in the board */
 233         int err;
 234
 235         err = gpio_request(gpio_nr, "eth_irq");
 236         if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
 237         if (!err) err = gpio_direction_input(gpio_nr);
 238         if (err)
 239                 pr_err("Error %i in %s\n", err, __func__);
 240         return err;
 241 }
 242 device_initcall(nhk8815_eth_init);
 243
 244 static struct platform_device *nhk8815_platform_devices[] __initdata = {
 245         &nhk8815_nand_device,
 246         &nhk8815_onenand_device,
 247         &nhk8815_eth_device,
 248         /* will add more devices */
 249 };
 250
 251 static void __init nomadik_timer_init(void)
 252 {
 253         u32 src_cr;
 254
 255         /* Configure timer sources in "system reset controller" ctrl reg */
 256         src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
 257         src_cr &= SRC_CR_INIT_MASK;
 258         src_cr |= SRC_CR_INIT_VAL;
 259         writel(src_cr, io_p2v(NOMADIK_SRC_BASE));
 260
 261         nmdk_timer_init(io_p2v(NOMADIK_MTU0_BASE), IRQ_MTU0);
 262 }
 263
 264 static struct sys_timer nomadik_timer = {
 265         .init   = nomadik_timer_init,
 266 };
 267
 268 static struct i2c_board_info __initdata nhk8815_i2c0_devices[] = {
 269         {
 270                 I2C_BOARD_INFO("stw4811", 0x2d),
 271         },
 272 };
 273
 274 static struct i2c_board_info __initdata nhk8815_i2c1_devices[] = {
 275         {
 276                 I2C_BOARD_INFO("camera", 0x10),
 277         },
 278         {
 279                 I2C_BOARD_INFO("stw5095", 0x1a),
 280         },
 281         {
 282                 I2C_BOARD_INFO("lis3lv02dl", 0x1d),
 283         },
 284 };
 285
 286 static struct i2c_board_info __initdata nhk8815_i2c2_devices[] = {
 287         {
 288                 I2C_BOARD_INFO("stw4811-usb", 0x2d),
 289         },
 290 };
 291
 292 static unsigned long out_low[] = { PIN_OUTPUT_LOW };
 293 static unsigned long out_high[] = { PIN_OUTPUT_HIGH };
 294 static unsigned long in_nopull[] = { PIN_INPUT_NOPULL };
 295 static unsigned long in_pullup[] = { PIN_INPUT_PULLUP };
 296
 297 static struct pinctrl_map __initdata nhk8815_pinmap[] = {
 298         PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-stn8815", "u0_a_1", "u0"),
 299         PIN_MAP_MUX_GROUP_DEFAULT("uart1", "pinctrl-stn8815", "u1_a_1", "u1"),
 300         /* Hog in MMC/SD card mux */
 301         PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-stn8815", "mmcsd_a_1", "mmcsd"),
 302         /* MCCLK */
 303         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO8_B10", out_low),
 304         /* MCCMD */
 305         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO9_A10", in_pullup),
 306         /* MCCMDDIR */
 307         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO10_C11", out_high),
 308         /* MCDAT3-0 */
 309         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO11_B11", in_pullup),
 310         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO12_A11", in_pullup),
 311         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO13_C12", in_pullup),
 312         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO14_B12", in_pullup),
 313         /* MCDAT0DIR */
 314         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO15_A12", out_high),
 315         /* MCDAT31DIR */
 316         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO16_C13", out_high),
 317         /* MCMSFBCLK */
 318         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO24_C15", in_pullup),
 319         /* CD input GPIO */
 320         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO111_H21", in_nopull),
 321         /* CD bias drive */
 322         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO112_J21", out_low),
 323 };
 324
 325 static void __init nhk8815_platform_init(void)
 326 {
 327         pinctrl_register_mappings(nhk8815_pinmap, ARRAY_SIZE(nhk8815_pinmap));
 328         cpu8815_platform_init();
 329         nhk8815_onenand_init();
 330         platform_add_devices(nhk8815_platform_devices,
 331                              ARRAY_SIZE(nhk8815_platform_devices));
 332
 333         amba_apb_device_add(NULL, "uart0", NOMADIK_UART0_BASE, SZ_4K, IRQ_UART0, 0, NULL, 0);
 334         amba_apb_device_add(NULL, "uart1", NOMADIK_UART1_BASE, SZ_4K, IRQ_UART1, 0, NULL, 0);
 335
 336         i2c_register_board_info(0, nhk8815_i2c0_devices,
 337                                 ARRAY_SIZE(nhk8815_i2c0_devices));
 338         i2c_register_board_info(1, nhk8815_i2c1_devices,
 339                                 ARRAY_SIZE(nhk8815_i2c1_devices));
 340         i2c_register_board_info(2, nhk8815_i2c2_devices,
 341                                 ARRAY_SIZE(nhk8815_i2c2_devices));
 342 }
 343
 344 MACHINE_START(NOMADIK, "NHK8815")
 345         /* Maintainer: ST MicroElectronics */
 346         .atag_offset    = 0x100,
 347         .map_io         = cpu8815_map_io,
 348         .init_irq       = cpu8815_init_irq,
 349         .handle_irq     = vic_handle_irq,
 350         .timer          = &nomadik_timer,
 351         .init_machine   = nhk8815_platform_init,
 352         .restart        = cpu8815_restart,
 353 MACHINE_END