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 <linux/platform_data/pinctrl-nomadik.h>
  29 #include <linux/platform_data/clocksource-nomadik-mtu.h>
  30 #include <linux/platform_data/mtd-nomadik-nand.h>
  31 #include <asm/hardware/vic.h>
  32 #include <asm/sizes.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/flash.h>
  36 #include <asm/mach/time.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 #define ALE_OFF 0x1000000
  46 #define CLE_OFF 0x800000
  47
  48 /* These addresses span 16MB, so use three individual pages */
  49 static struct resource nhk8815_nand_resources[] = {
  50         {
  51                 .name = "nand_data",
  52                 .start = 0x40000000,
  53                 .end = 0x40000000 + SZ_16K - 1,
  54                 .flags = IORESOURCE_MEM,
  55         }, {
  56                 .name = "nand_addr",
  57                 .start = 0x40000000 + ALE_OFF,
  58                 .end = 0x40000000 +ALE_OFF + SZ_16K - 1,
  59                 .flags = IORESOURCE_MEM,
  60         }, {
  61                 .name = "nand_cmd",
  62                 .start = 0x40000000 + CLE_OFF,
  63                 .end = 0x40000000 + CLE_OFF + SZ_16K - 1,
  64                 .flags = IORESOURCE_MEM,
  65         }, {
  66                 .name  = "fsmc_regs",
  67                 .start = NOMADIK_FSMC_BASE,
  68                 .end   = NOMADIK_FSMC_BASE + SZ_4K - 1,
  69                 .flags = IORESOURCE_MEM,
  70         },
  71 };
  72
  73 /*
  74  * These partitions are the same as those used in the 2.6.20 release
  75  * shipped by the vendor; the first two partitions are mandated
  76  * by the boot ROM, and the bootloader area is somehow oversized...
  77  */
  78 static struct mtd_partition nhk8815_partitions[] = {
  79         {
  80                 .name   = "X-Loader(NAND)",
  81                 .offset = 0,
  82                 .size   = SZ_256K,
  83         }, {
  84                 .name   = "MemInit(NAND)",
  85                 .offset = MTDPART_OFS_APPEND,
  86                 .size   = SZ_256K,
  87         }, {
  88                 .name   = "BootLoader(NAND)",
  89                 .offset = MTDPART_OFS_APPEND,
  90                 .size   = SZ_2M,
  91         }, {
  92                 .name   = "Kernel zImage(NAND)",
  93                 .offset = MTDPART_OFS_APPEND,
  94                 .size   = 3 * SZ_1M,
  95         }, {
  96                 .name   = "Root Filesystem(NAND)",
  97                 .offset = MTDPART_OFS_APPEND,
  98                 .size   = 22 * SZ_1M,
  99         }, {
 100                 .name   = "User Filesystem(NAND)",
 101                 .offset = MTDPART_OFS_APPEND,
 102                 .size   = MTDPART_SIZ_FULL,
 103         }
 104 };
 105
 106 static struct fsmc_nand_timings nhk8815_nand_timings = {
 107         .thiz   = 0,
 108         .thold  = 0x10,
 109         .twait  = 0x0A,
 110         .tset   = 0,
 111 };
 112
 113 static struct fsmc_nand_platform_data nhk8815_nand_platform_data = {
 114         .nand_timings = &nhk8815_nand_timings,
 115         .partitions = nhk8815_partitions,
 116         .nr_partitions = ARRAY_SIZE(nhk8815_partitions),
 117         .width = FSMC_NAND_BW8,
 118 };
 119
 120 static struct platform_device nhk8815_nand_device = {
 121         .name = "fsmc-nand",
 122         .id = -1,
 123         .resource = nhk8815_nand_resources,
 124         .num_resources = ARRAY_SIZE(nhk8815_nand_resources),
 125         .dev = {
 126                 .platform_data = &nhk8815_nand_platform_data,
 127         },
 128 };
 129
 130 /* These are the partitions for the OneNand device, different from above */
 131 static struct mtd_partition nhk8815_onenand_partitions[] = {
 132         {
 133                 .name   = "X-Loader(OneNAND)",
 134                 .offset = 0,
 135                 .size   = SZ_256K,
 136         }, {
 137                 .name   = "MemInit(OneNAND)",
 138                 .offset = MTDPART_OFS_APPEND,
 139                 .size   = SZ_256K,
 140         }, {
 141                 .name   = "BootLoader(OneNAND)",
 142                 .offset = MTDPART_OFS_APPEND,
 143                 .size   = SZ_2M-SZ_256K,
 144         }, {
 145                 .name   = "SysImage(OneNAND)",
 146                 .offset = MTDPART_OFS_APPEND,
 147                 .size   = 4 * SZ_1M,
 148         }, {
 149                 .name   = "Root Filesystem(OneNAND)",
 150                 .offset = MTDPART_OFS_APPEND,
 151                 .size   = 22 * SZ_1M,
 152         }, {
 153                 .name   = "User Filesystem(OneNAND)",
 154                 .offset = MTDPART_OFS_APPEND,
 155                 .size   = MTDPART_SIZ_FULL,
 156         }
 157 };
 158
 159 static struct onenand_platform_data nhk8815_onenand_data = {
 160         .parts          = nhk8815_onenand_partitions,
 161         .nr_parts       = ARRAY_SIZE(nhk8815_onenand_partitions),
 162 };
 163
 164 static struct resource nhk8815_onenand_resource[] = {
 165         {
 166                 .start          = 0x30000000,
 167                 .end            = 0x30000000 + SZ_128K - 1,
 168                 .flags          = IORESOURCE_MEM,
 169         },
 170 };
 171
 172 static struct platform_device nhk8815_onenand_device = {
 173         .name           = "onenand-flash",
 174         .id             = -1,
 175         .dev            = {
 176                 .platform_data  = &nhk8815_onenand_data,
 177         },
 178         .resource       = nhk8815_onenand_resource,
 179         .num_resources  = ARRAY_SIZE(nhk8815_onenand_resource),
 180 };
 181
 182 /* bus control reg. and bus timing reg. for CS0..CS3 */
 183 #define FSMC_BCR(x)     (NOMADIK_FSMC_VA + (x << 3))
 184 #define FSMC_BTR(x)     (NOMADIK_FSMC_VA + (x << 3) + 0x04)
 185
 186 static void __init nhk8815_onenand_init(void)
 187 {
 188 #ifdef CONFIG_MTD_ONENAND
 189        /* Set up SMCS0 for OneNand */
 190         writel(0x000030db, FSMC_BCR(0));
 191         writel(0x02100551, FSMC_BTR(0));
 192 #endif
 193 }
 194
 195 static struct mmci_platform_data mmcsd_plat_data = {
 196         .ocr_mask = MMC_VDD_29_30,
 197         .f_max = 48000000,
 198         .gpio_wp = -1,
 199         .gpio_cd = 111,
 200         .cd_invert = true,
 201         .capabilities = MMC_CAP_MMC_HIGHSPEED |
 202         MMC_CAP_SD_HIGHSPEED | MMC_CAP_4_BIT_DATA,
 203 };
 204
 205 static int __init nhk8815_mmcsd_init(void)
 206 {
 207         int ret;
 208
 209         ret = gpio_request(112, "card detect bias");
 210         if (ret)
 211                 return ret;
 212         gpio_direction_output(112, 0);
 213         amba_apb_device_add(NULL, "mmci", NOMADIK_SDI_BASE, SZ_4K, IRQ_SDMMC, 0, &mmcsd_plat_data, 0x10180180);
 214         return 0;
 215 }
 216 module_init(nhk8815_mmcsd_init);
 217
 218 static struct resource nhk8815_eth_resources[] = {
 219         {
 220                 .name = "smc91x-regs",
 221                 .start = 0x34000000 + 0x300,
 222                 .end = 0x34000000 + SZ_64K - 1,
 223                 .flags = IORESOURCE_MEM,
 224         }, {
 225                 .start = NOMADIK_GPIO_TO_IRQ(115),
 226                 .end = NOMADIK_GPIO_TO_IRQ(115),
 227                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 228         }
 229 };
 230
 231 static struct platform_device nhk8815_eth_device = {
 232         .name = "smc91x",
 233         .resource = nhk8815_eth_resources,
 234         .num_resources = ARRAY_SIZE(nhk8815_eth_resources),
 235 };
 236
 237 static int __init nhk8815_eth_init(void)
 238 {
 239         int gpio_nr = 115; /* hardwired in the board */
 240         int err;
 241
 242         err = gpio_request(gpio_nr, "eth_irq");
 243         if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
 244         if (!err) err = gpio_direction_input(gpio_nr);
 245         if (err)
 246                 pr_err("Error %i in %s\n", err, __func__);
 247         return err;
 248 }
 249 device_initcall(nhk8815_eth_init);
 250
 251 static struct platform_device *nhk8815_platform_devices[] __initdata = {
 252         &nhk8815_nand_device,
 253         &nhk8815_onenand_device,
 254         &nhk8815_eth_device,
 255         /* will add more devices */
 256 };
 257
 258 static void __init nomadik_timer_init(void)
 259 {
 260         u32 src_cr;
 261
 262         /* Configure timer sources in "system reset controller" ctrl reg */
 263         src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
 264         src_cr &= SRC_CR_INIT_MASK;
 265         src_cr |= SRC_CR_INIT_VAL;
 266         writel(src_cr, io_p2v(NOMADIK_SRC_BASE));
 267
 268         nmdk_timer_init(io_p2v(NOMADIK_MTU0_BASE), IRQ_MTU0);
 269 }
 270
 271 static struct sys_timer nomadik_timer = {
 272         .init   = nomadik_timer_init,
 273 };
 274
 275 static struct i2c_board_info __initdata nhk8815_i2c0_devices[] = {
 276         {
 277                 I2C_BOARD_INFO("stw4811", 0x2d),
 278         },
 279 };
 280
 281 static struct i2c_board_info __initdata nhk8815_i2c1_devices[] = {
 282         {
 283                 I2C_BOARD_INFO("camera", 0x10),
 284         },
 285         {
 286                 I2C_BOARD_INFO("stw5095", 0x1a),
 287         },
 288         {
 289                 I2C_BOARD_INFO("lis3lv02dl", 0x1d),
 290         },
 291 };
 292
 293 static struct i2c_board_info __initdata nhk8815_i2c2_devices[] = {
 294         {
 295                 I2C_BOARD_INFO("stw4811-usb", 0x2d),
 296         },
 297 };
 298
 299 static unsigned long out_low[] = { PIN_OUTPUT_LOW };
 300 static unsigned long out_high[] = { PIN_OUTPUT_HIGH };
 301 static unsigned long in_nopull[] = { PIN_INPUT_NOPULL };
 302 static unsigned long in_pullup[] = { PIN_INPUT_PULLUP };
 303
 304 static struct pinctrl_map __initdata nhk8815_pinmap[] = {
 305         PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-stn8815", "u0_a_1", "u0"),
 306         PIN_MAP_MUX_GROUP_DEFAULT("uart1", "pinctrl-stn8815", "u1_a_1", "u1"),
 307         /* Hog in MMC/SD card mux */
 308         PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-stn8815", "mmcsd_a_1", "mmcsd"),
 309         /* MCCLK */
 310         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO8_B10", out_low),
 311         /* MCCMD */
 312         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO9_A10", in_pullup),
 313         /* MCCMDDIR */
 314         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO10_C11", out_high),
 315         /* MCDAT3-0 */
 316         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO11_B11", in_pullup),
 317         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO12_A11", in_pullup),
 318         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO13_C12", in_pullup),
 319         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO14_B12", in_pullup),
 320         /* MCDAT0DIR */
 321         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO15_A12", out_high),
 322         /* MCDAT31DIR */
 323         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO16_C13", out_high),
 324         /* MCMSFBCLK */
 325         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO24_C15", in_pullup),
 326         /* CD input GPIO */
 327         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO111_H21", in_nopull),
 328         /* CD bias drive */
 329         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO112_J21", out_low),
 330 };
 331
 332 static void __init nhk8815_platform_init(void)
 333 {
 334         pinctrl_register_mappings(nhk8815_pinmap, ARRAY_SIZE(nhk8815_pinmap));
 335         cpu8815_platform_init();
 336         nhk8815_onenand_init();
 337         platform_add_devices(nhk8815_platform_devices,
 338                              ARRAY_SIZE(nhk8815_platform_devices));
 339
 340         amba_apb_device_add(NULL, "uart0", NOMADIK_UART0_BASE, SZ_4K, IRQ_UART0, 0, NULL, 0);
 341         amba_apb_device_add(NULL, "uart1", NOMADIK_UART1_BASE, SZ_4K, IRQ_UART1, 0, NULL, 0);
 342
 343         i2c_register_board_info(0, nhk8815_i2c0_devices,
 344                                 ARRAY_SIZE(nhk8815_i2c0_devices));
 345         i2c_register_board_info(1, nhk8815_i2c1_devices,
 346                                 ARRAY_SIZE(nhk8815_i2c1_devices));
 347         i2c_register_board_info(2, nhk8815_i2c2_devices,
 348                                 ARRAY_SIZE(nhk8815_i2c2_devices));
 349 }
 350
 351 MACHINE_START(NOMADIK, "NHK8815")
 352         /* Maintainer: ST MicroElectronics */
 353         .atag_offset    = 0x100,
 354         .map_io         = cpu8815_map_io,
 355         .init_irq       = cpu8815_init_irq,
 356         .handle_irq     = vic_handle_irq,
 357         .timer          = &nomadik_timer,
 358         .init_machine   = nhk8815_platform_init,
 359         .restart        = cpu8815_restart,
 360 MACHINE_END