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