Pileus Git - ~andy/linux/blob - 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/fsmc.h>
  23 #include <linux/mtd/onenand.h>
  24 #include <linux/mtd/partitions.h>
  25 #include <linux/i2c.h>
  26 #include <linux/io.h>
  27 #include <linux/pinctrl/machine.h>
  28 #include <asm/hardware/vic.h>
  29 #include <asm/sizes.h>
  30 #include <asm/mach-types.h>
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/irq.h>
  33 #include <asm/mach/flash.h>
  34 #include <asm/mach/time.h>
  35
  36 #include <plat/gpio-nomadik.h>
  37 #include <plat/mtu.h>
  38 #include <plat/pincfg.h>
  39
  40 #include "cpu-8815.h"
  41
  42 /* Initial value for SRC control register: all timers use MXTAL/8 source */
  43 #define SRC_CR_INIT_MASK        0x00007fff
  44 #define SRC_CR_INIT_VAL         0x2aaa8000
  45
  46 #define ALE_OFF 0x1000000
  47 #define CLE_OFF 0x800000
  48
  49 /* These addresses span 16MB, so use three individual pages */
  50 static struct resource nhk8815_nand_resources[] = {
  51         {
  52                 .name = "nand_data",
  53                 .start = 0x40000000,
  54                 .end = 0x40000000 + SZ_16K - 1,
  55                 .flags = IORESOURCE_MEM,
  56         }, {
  57                 .name = "nand_addr",
  58                 .start = 0x40000000 + ALE_OFF,
  59                 .end = 0x40000000 +ALE_OFF + SZ_16K - 1,
  60                 .flags = IORESOURCE_MEM,
  61         }, {
  62                 .name = "nand_cmd",
  63                 .start = 0x40000000 + CLE_OFF,
  64                 .end = 0x40000000 + CLE_OFF + SZ_16K - 1,
  65                 .flags = IORESOURCE_MEM,
  66         }, {
  67                 .name  = "fsmc_regs",
  68                 .start = NOMADIK_FSMC_BASE,
  69                 .end   = NOMADIK_FSMC_BASE + SZ_4K - 1,
  70                 .flags = IORESOURCE_MEM,
  71         },
  72 };
  73
  74 /*
  75  * These partitions are the same as those used in the 2.6.20 release
  76  * shipped by the vendor; the first two partitions are mandated
  77  * by the boot ROM, and the bootloader area is somehow oversized...
  78  */
  79 static struct mtd_partition nhk8815_partitions[] = {
  80         {
  81                 .name   = "X-Loader(NAND)",
  82                 .offset = 0,
  83                 .size   = SZ_256K,
  84         }, {
  85                 .name   = "MemInit(NAND)",
  86                 .offset = MTDPART_OFS_APPEND,
  87                 .size   = SZ_256K,
  88         }, {
  89                 .name   = "BootLoader(NAND)",
  90                 .offset = MTDPART_OFS_APPEND,
  91                 .size   = SZ_2M,
  92         }, {
  93                 .name   = "Kernel zImage(NAND)",
  94                 .offset = MTDPART_OFS_APPEND,
  95                 .size   = 3 * SZ_1M,
  96         }, {
  97                 .name   = "Root Filesystem(NAND)",
  98                 .offset = MTDPART_OFS_APPEND,
  99                 .size   = 22 * SZ_1M,
 100         }, {
 101                 .name   = "User Filesystem(NAND)",
 102                 .offset = MTDPART_OFS_APPEND,
 103                 .size   = MTDPART_SIZ_FULL,
 104         }
 105 };
 106
 107 static struct fsmc_nand_timings nhk8815_nand_timings = {
 108         .thiz   = 0,
 109         .thold  = 0x10,
 110         .twait  = 0x0A,
 111         .tset   = 0,
 112 };
 113
 114 static struct fsmc_nand_platform_data nhk8815_nand_platform_data = {
 115         .nand_timings = &nhk8815_nand_timings,
 116         .partitions = nhk8815_partitions,
 117         .nr_partitions = ARRAY_SIZE(nhk8815_partitions),
 118         .width = FSMC_NAND_BW8,
 119 };
 120
 121 static struct platform_device nhk8815_nand_device = {
 122         .name = "fsmc-nand",
 123         .id = -1,
 124         .resource = nhk8815_nand_resources,
 125         .num_resources = ARRAY_SIZE(nhk8815_nand_resources),
 126         .dev = {
 127                 .platform_data = &nhk8815_nand_platform_data,
 128         },
 129 };
 130
 131 /* These are the partitions for the OneNand device, different from above */
 132 static struct mtd_partition nhk8815_onenand_partitions[] = {
 133         {
 134                 .name   = "X-Loader(OneNAND)",
 135                 .offset = 0,
 136                 .size   = SZ_256K,
 137         }, {
 138                 .name   = "MemInit(OneNAND)",
 139                 .offset = MTDPART_OFS_APPEND,
 140                 .size   = SZ_256K,
 141         }, {
 142                 .name   = "BootLoader(OneNAND)",
 143                 .offset = MTDPART_OFS_APPEND,
 144                 .size   = SZ_2M-SZ_256K,
 145         }, {
 146                 .name   = "SysImage(OneNAND)",
 147                 .offset = MTDPART_OFS_APPEND,
 148                 .size   = 4 * SZ_1M,
 149         }, {
 150                 .name   = "Root Filesystem(OneNAND)",
 151                 .offset = MTDPART_OFS_APPEND,
 152                 .size   = 22 * SZ_1M,
 153         }, {
 154                 .name   = "User Filesystem(OneNAND)",
 155                 .offset = MTDPART_OFS_APPEND,
 156                 .size   = MTDPART_SIZ_FULL,
 157         }
 158 };
 159
 160 static struct onenand_platform_data nhk8815_onenand_data = {
 161         .parts          = nhk8815_onenand_partitions,
 162         .nr_parts       = ARRAY_SIZE(nhk8815_onenand_partitions),
 163 };
 164
 165 static struct resource nhk8815_onenand_resource[] = {
 166         {
 167                 .start          = 0x30000000,
 168                 .end            = 0x30000000 + SZ_128K - 1,
 169                 .flags          = IORESOURCE_MEM,
 170         },
 171 };
 172
 173 static struct platform_device nhk8815_onenand_device = {
 174         .name           = "onenand-flash",
 175         .id             = -1,
 176         .dev            = {
 177                 .platform_data  = &nhk8815_onenand_data,
 178         },
 179         .resource       = nhk8815_onenand_resource,
 180         .num_resources  = ARRAY_SIZE(nhk8815_onenand_resource),
 181 };
 182
 183 /* bus control reg. and bus timing reg. for CS0..CS3 */
 184 #define FSMC_BCR(x)     (NOMADIK_FSMC_VA + (x << 3))
 185 #define FSMC_BTR(x)     (NOMADIK_FSMC_VA + (x << 3) + 0x04)
 186
 187 static void __init nhk8815_onenand_init(void)
 188 {
 189 #ifdef CONFIG_MTD_ONENAND
 190        /* Set up SMCS0 for OneNand */
 191         writel(0x000030db, FSMC_BCR(0));
 192         writel(0x02100551, FSMC_BTR(0));
 193 #endif
 194 }
 195
 196 static struct mmci_platform_data mmcsd_plat_data = {
 197         .ocr_mask = MMC_VDD_29_30,
 198         .f_max = 48000000,
 199         .gpio_wp = -1,
 200         .gpio_cd = 111,
 201         .cd_invert = true,
 202         .capabilities = MMC_CAP_MMC_HIGHSPEED |
 203         MMC_CAP_SD_HIGHSPEED | MMC_CAP_4_BIT_DATA,
 204 };
 205
 206 static int __init nhk8815_mmcsd_init(void)
 207 {
 208         int ret;
 209
 210         ret = gpio_request(112, "card detect bias");
 211         if (ret)
 212                 return ret;
 213         gpio_direction_output(112, 0);
 214         amba_apb_device_add(NULL, "mmci", NOMADIK_SDI_BASE, SZ_4K, IRQ_SDMMC, 0, &mmcsd_plat_data, 0x10180180);
 215         return 0;
 216 }
 217 module_init(nhk8815_mmcsd_init);
 218
 219 static struct resource nhk8815_eth_resources[] = {
 220         {
 221                 .name = "smc91x-regs",
 222                 .start = 0x34000000 + 0x300,
 223                 .end = 0x34000000 + SZ_64K - 1,
 224                 .flags = IORESOURCE_MEM,
 225         }, {
 226                 .start = NOMADIK_GPIO_TO_IRQ(115),
 227                 .end = NOMADIK_GPIO_TO_IRQ(115),
 228                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 229         }
 230 };
 231
 232 static struct platform_device nhk8815_eth_device = {
 233         .name = "smc91x",
 234         .resource = nhk8815_eth_resources,
 235         .num_resources = ARRAY_SIZE(nhk8815_eth_resources),
 236 };
 237
 238 static int __init nhk8815_eth_init(void)
 239 {
 240         int gpio_nr = 115; /* hardwired in the board */
 241         int err;
 242
 243         err = gpio_request(gpio_nr, "eth_irq");
 244         if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
 245         if (!err) err = gpio_direction_input(gpio_nr);
 246         if (err)
 247                 pr_err("Error %i in %s\n", err, __func__);
 248         return err;
 249 }
 250 device_initcall(nhk8815_eth_init);
 251
 252 static struct platform_device *nhk8815_platform_devices[] __initdata = {
 253         &nhk8815_nand_device,
 254         &nhk8815_onenand_device,
 255         &nhk8815_eth_device,
 256         /* will add more devices */
 257 };
 258
 259 static void __init nomadik_timer_init(void)
 260 {
 261         u32 src_cr;
 262
 263         /* Configure timer sources in "system reset controller" ctrl reg */
 264         src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
 265         src_cr &= SRC_CR_INIT_MASK;
 266         src_cr |= SRC_CR_INIT_VAL;
 267         writel(src_cr, io_p2v(NOMADIK_SRC_BASE));
 268
 269         nmdk_timer_init(io_p2v(NOMADIK_MTU0_BASE));
 270 }
 271
 272 static struct sys_timer nomadik_timer = {
 273         .init   = nomadik_timer_init,
 274 };
 275
 276 static struct i2c_board_info __initdata nhk8815_i2c0_devices[] = {
 277         {
 278                 I2C_BOARD_INFO("stw4811", 0x2d),
 279         },
 280 };
 281
 282 static struct i2c_board_info __initdata nhk8815_i2c1_devices[] = {
 283         {
 284                 I2C_BOARD_INFO("camera", 0x10),
 285         },
 286         {
 287                 I2C_BOARD_INFO("stw5095", 0x1a),
 288         },
 289         {
 290                 I2C_BOARD_INFO("lis3lv02dl", 0x1d),
 291         },
 292 };
 293
 294 static struct i2c_board_info __initdata nhk8815_i2c2_devices[] = {
 295         {
 296                 I2C_BOARD_INFO("stw4811-usb", 0x2d),
 297         },
 298 };
 299
 300 static unsigned long out_low[] = { PIN_OUTPUT_LOW };
 301 static unsigned long out_high[] = { PIN_OUTPUT_HIGH };
 302 static unsigned long in_nopull[] = { PIN_INPUT_NOPULL };
 303 static unsigned long in_pullup[] = { PIN_INPUT_PULLUP };
 304
 305 static struct pinctrl_map __initdata nhk8815_pinmap[] = {
 306         PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-stn8815", "u0_a_1", "u0"),
 307         PIN_MAP_MUX_GROUP_DEFAULT("uart1", "pinctrl-stn8815", "u1_a_1", "u1"),
 308         /* Hog in MMC/SD card mux */
 309         PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-stn8815", "mmcsd_a_1", "mmcsd"),
 310         /* MCCLK */
 311         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO8_B10", out_low),
 312         /* MCCMD */
 313         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO9_A10", in_pullup),
 314         /* MCCMDDIR */
 315         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO10_C11", out_high),
 316         /* MCDAT3-0 */
 317         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO11_B11", in_pullup),
 318         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO12_A11", in_pullup),
 319         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO13_C12", in_pullup),
 320         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO14_B12", in_pullup),
 321         /* MCDAT0DIR */
 322         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO15_A12", out_high),
 323         /* MCDAT31DIR */
 324         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO16_C13", out_high),
 325         /* MCMSFBCLK */
 326         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO24_C15", in_pullup),
 327         /* CD input GPIO */
 328         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO111_H21", in_nopull),
 329         /* CD bias drive */
 330         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO112_J21", out_low),
 331 };
 332
 333 static void __init nhk8815_platform_init(void)
 334 {
 335         pinctrl_register_mappings(nhk8815_pinmap, ARRAY_SIZE(nhk8815_pinmap));
 336         cpu8815_platform_init();
 337         nhk8815_onenand_init();
 338         platform_add_devices(nhk8815_platform_devices,
 339                              ARRAY_SIZE(nhk8815_platform_devices));
 340
 341         amba_apb_device_add(NULL, "uart0", NOMADIK_UART0_BASE, SZ_4K, IRQ_UART0, 0, NULL, 0);
 342         amba_apb_device_add(NULL, "uart1", NOMADIK_UART1_BASE, SZ_4K, IRQ_UART1, 0, NULL, 0);
 343
 344         i2c_register_board_info(0, nhk8815_i2c0_devices,
 345                                 ARRAY_SIZE(nhk8815_i2c0_devices));
 346         i2c_register_board_info(1, nhk8815_i2c1_devices,
 347                                 ARRAY_SIZE(nhk8815_i2c1_devices));
 348         i2c_register_board_info(2, nhk8815_i2c2_devices,
 349                                 ARRAY_SIZE(nhk8815_i2c2_devices));
 350 }
 351
 352 MACHINE_START(NOMADIK, "NHK8815")
 353         /* Maintainer: ST MicroElectronics */
 354         .atag_offset    = 0x100,
 355         .map_io         = cpu8815_map_io,
 356         .init_irq       = cpu8815_init_irq,
 357         .handle_irq     = vic_handle_irq,
 358         .timer          = &nomadik_timer,
 359         .init_machine   = nhk8815_platform_init,
 360         .restart        = cpu8815_restart,
 361 MACHINE_END