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 <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/irqs.h>
  37
  38 #include "cpu-8815.h"
  39
  40 /* Initial value for SRC control register: all timers use MXTAL/8 source */
  41 #define SRC_CR_INIT_MASK        0x00007fff
  42 #define SRC_CR_INIT_VAL         0x2aaa8000
  43
  44 #define ALE_OFF 0x1000000
  45 #define CLE_OFF 0x800000
  46
  47 /* These addresses span 16MB, so use three individual pages */
  48 static struct resource nhk8815_nand_resources[] = {
  49         {
  50                 .name = "nand_data",
  51                 .start = 0x40000000,
  52                 .end = 0x40000000 + SZ_16K - 1,
  53                 .flags = IORESOURCE_MEM,
  54         }, {
  55                 .name = "nand_addr",
  56                 .start = 0x40000000 + ALE_OFF,
  57                 .end = 0x40000000 +ALE_OFF + SZ_16K - 1,
  58                 .flags = IORESOURCE_MEM,
  59         }, {
  60                 .name = "nand_cmd",
  61                 .start = 0x40000000 + CLE_OFF,
  62                 .end = 0x40000000 + CLE_OFF + SZ_16K - 1,
  63                 .flags = IORESOURCE_MEM,
  64         }, {
  65                 .name  = "fsmc_regs",
  66                 .start = NOMADIK_FSMC_BASE,
  67                 .end   = NOMADIK_FSMC_BASE + SZ_4K - 1,
  68                 .flags = IORESOURCE_MEM,
  69         },
  70 };
  71
  72 /*
  73  * These partitions are the same as those used in the 2.6.20 release
  74  * shipped by the vendor; the first two partitions are mandated
  75  * by the boot ROM, and the bootloader area is somehow oversized...
  76  */
  77 static struct mtd_partition nhk8815_partitions[] = {
  78         {
  79                 .name   = "X-Loader(NAND)",
  80                 .offset = 0,
  81                 .size   = SZ_256K,
  82         }, {
  83                 .name   = "MemInit(NAND)",
  84                 .offset = MTDPART_OFS_APPEND,
  85                 .size   = SZ_256K,
  86         }, {
  87                 .name   = "BootLoader(NAND)",
  88                 .offset = MTDPART_OFS_APPEND,
  89                 .size   = SZ_2M,
  90         }, {
  91                 .name   = "Kernel zImage(NAND)",
  92                 .offset = MTDPART_OFS_APPEND,
  93                 .size   = 3 * SZ_1M,
  94         }, {
  95                 .name   = "Root Filesystem(NAND)",
  96                 .offset = MTDPART_OFS_APPEND,
  97                 .size   = 22 * SZ_1M,
  98         }, {
  99                 .name   = "User Filesystem(NAND)",
 100                 .offset = MTDPART_OFS_APPEND,
 101                 .size   = MTDPART_SIZ_FULL,
 102         }
 103 };
 104
 105 static struct fsmc_nand_timings nhk8815_nand_timings = {
 106         .thiz   = 0,
 107         .thold  = 0x10,
 108         .twait  = 0x0A,
 109         .tset   = 0,
 110 };
 111
 112 static struct fsmc_nand_platform_data nhk8815_nand_platform_data = {
 113         .nand_timings = &nhk8815_nand_timings,
 114         .partitions = nhk8815_partitions,
 115         .nr_partitions = ARRAY_SIZE(nhk8815_partitions),
 116         .width = FSMC_NAND_BW8,
 117 };
 118
 119 static struct platform_device nhk8815_nand_device = {
 120         .name = "fsmc-nand",
 121         .id = -1,
 122         .resource = nhk8815_nand_resources,
 123         .num_resources = ARRAY_SIZE(nhk8815_nand_resources),
 124         .dev = {
 125                 .platform_data = &nhk8815_nand_platform_data,
 126         },
 127 };
 128
 129 /* These are the partitions for the OneNand device, different from above */
 130 static struct mtd_partition nhk8815_onenand_partitions[] = {
 131         {
 132                 .name   = "X-Loader(OneNAND)",
 133                 .offset = 0,
 134                 .size   = SZ_256K,
 135         }, {
 136                 .name   = "MemInit(OneNAND)",
 137                 .offset = MTDPART_OFS_APPEND,
 138                 .size   = SZ_256K,
 139         }, {
 140                 .name   = "BootLoader(OneNAND)",
 141                 .offset = MTDPART_OFS_APPEND,
 142                 .size   = SZ_2M-SZ_256K,
 143         }, {
 144                 .name   = "SysImage(OneNAND)",
 145                 .offset = MTDPART_OFS_APPEND,
 146                 .size   = 4 * SZ_1M,
 147         }, {
 148                 .name   = "Root Filesystem(OneNAND)",
 149                 .offset = MTDPART_OFS_APPEND,
 150                 .size   = 22 * SZ_1M,
 151         }, {
 152                 .name   = "User Filesystem(OneNAND)",
 153                 .offset = MTDPART_OFS_APPEND,
 154                 .size   = MTDPART_SIZ_FULL,
 155         }
 156 };
 157
 158 static struct onenand_platform_data nhk8815_onenand_data = {
 159         .parts          = nhk8815_onenand_partitions,
 160         .nr_parts       = ARRAY_SIZE(nhk8815_onenand_partitions),
 161 };
 162
 163 static struct resource nhk8815_onenand_resource[] = {
 164         {
 165                 .start          = 0x30000000,
 166                 .end            = 0x30000000 + SZ_128K - 1,
 167                 .flags          = IORESOURCE_MEM,
 168         },
 169 };
 170
 171 static struct platform_device nhk8815_onenand_device = {
 172         .name           = "onenand-flash",
 173         .id             = -1,
 174         .dev            = {
 175                 .platform_data  = &nhk8815_onenand_data,
 176         },
 177         .resource       = nhk8815_onenand_resource,
 178         .num_resources  = ARRAY_SIZE(nhk8815_onenand_resource),
 179 };
 180
 181 /* bus control reg. and bus timing reg. for CS0..CS3 */
 182 #define FSMC_BCR(x)     (NOMADIK_FSMC_VA + (x << 3))
 183 #define FSMC_BTR(x)     (NOMADIK_FSMC_VA + (x << 3) + 0x04)
 184
 185 static void __init nhk8815_onenand_init(void)
 186 {
 187 #ifdef CONFIG_MTD_ONENAND
 188        /* Set up SMCS0 for OneNand */
 189         writel(0x000030db, FSMC_BCR(0));
 190         writel(0x02100551, FSMC_BTR(0));
 191 #endif
 192 }
 193
 194 static struct mmci_platform_data mmcsd_plat_data = {
 195         .ocr_mask = MMC_VDD_29_30,
 196         .f_max = 48000000,
 197         .gpio_wp = -1,
 198         .gpio_cd = 111,
 199         .cd_invert = true,
 200         .capabilities = MMC_CAP_MMC_HIGHSPEED |
 201         MMC_CAP_SD_HIGHSPEED | MMC_CAP_4_BIT_DATA,
 202 };
 203
 204 static int __init nhk8815_mmcsd_init(void)
 205 {
 206         int ret;
 207
 208         ret = gpio_request(112, "card detect bias");
 209         if (ret)
 210                 return ret;
 211         gpio_direction_output(112, 0);
 212         amba_apb_device_add(NULL, "mmci", NOMADIK_SDI_BASE, SZ_4K, IRQ_SDMMC, 0, &mmcsd_plat_data, 0x10180180);
 213         return 0;
 214 }
 215 module_init(nhk8815_mmcsd_init);
 216
 217 static struct resource nhk8815_eth_resources[] = {
 218         {
 219                 .name = "smc91x-regs",
 220                 .start = 0x34000000 + 0x300,
 221                 .end = 0x34000000 + SZ_64K - 1,
 222                 .flags = IORESOURCE_MEM,
 223         }, {
 224                 .start = NOMADIK_GPIO_TO_IRQ(115),
 225                 .end = NOMADIK_GPIO_TO_IRQ(115),
 226                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 227         }
 228 };
 229
 230 static struct platform_device nhk8815_eth_device = {
 231         .name = "smc91x",
 232         .resource = nhk8815_eth_resources,
 233         .num_resources = ARRAY_SIZE(nhk8815_eth_resources),
 234 };
 235
 236 static int __init nhk8815_eth_init(void)
 237 {
 238         int gpio_nr = 115; /* hardwired in the board */
 239         int err;
 240
 241         err = gpio_request(gpio_nr, "eth_irq");
 242         if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
 243         if (!err) err = gpio_direction_input(gpio_nr);
 244         if (err)
 245                 pr_err("Error %i in %s\n", err, __func__);
 246         return err;
 247 }
 248 device_initcall(nhk8815_eth_init);
 249
 250 static struct platform_device *nhk8815_platform_devices[] __initdata = {
 251         &nhk8815_nand_device,
 252         &nhk8815_onenand_device,
 253         &nhk8815_eth_device,
 254         /* will add more devices */
 255 };
 256
 257 static void __init nomadik_timer_init(void)
 258 {
 259         u32 src_cr;
 260
 261         /* Configure timer sources in "system reset controller" ctrl reg */
 262         src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
 263         src_cr &= SRC_CR_INIT_MASK;
 264         src_cr |= SRC_CR_INIT_VAL;
 265         writel(src_cr, io_p2v(NOMADIK_SRC_BASE));
 266
 267         nmdk_timer_init(io_p2v(NOMADIK_MTU0_BASE), IRQ_MTU0);
 268 }
 269
 270 static struct sys_timer nomadik_timer = {
 271         .init   = nomadik_timer_init,
 272 };
 273
 274 static struct i2c_board_info __initdata nhk8815_i2c0_devices[] = {
 275         {
 276                 I2C_BOARD_INFO("stw4811", 0x2d),
 277         },
 278 };
 279
 280 static struct i2c_board_info __initdata nhk8815_i2c1_devices[] = {
 281         {
 282                 I2C_BOARD_INFO("camera", 0x10),
 283         },
 284         {
 285                 I2C_BOARD_INFO("stw5095", 0x1a),
 286         },
 287         {
 288                 I2C_BOARD_INFO("lis3lv02dl", 0x1d),
 289         },
 290 };
 291
 292 static struct i2c_board_info __initdata nhk8815_i2c2_devices[] = {
 293         {
 294                 I2C_BOARD_INFO("stw4811-usb", 0x2d),
 295         },
 296 };
 297
 298 static unsigned long out_low[] = { PIN_OUTPUT_LOW };
 299 static unsigned long out_high[] = { PIN_OUTPUT_HIGH };
 300 static unsigned long in_nopull[] = { PIN_INPUT_NOPULL };
 301 static unsigned long in_pullup[] = { PIN_INPUT_PULLUP };
 302
 303 static struct pinctrl_map __initdata nhk8815_pinmap[] = {
 304         PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-stn8815", "u0_a_1", "u0"),
 305         PIN_MAP_MUX_GROUP_DEFAULT("uart1", "pinctrl-stn8815", "u1_a_1", "u1"),
 306         /* Hog in MMC/SD card mux */
 307         PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-stn8815", "mmcsd_a_1", "mmcsd"),
 308         /* MCCLK */
 309         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO8_B10", out_low),
 310         /* MCCMD */
 311         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO9_A10", in_pullup),
 312         /* MCCMDDIR */
 313         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO10_C11", out_high),
 314         /* MCDAT3-0 */
 315         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO11_B11", in_pullup),
 316         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO12_A11", in_pullup),
 317         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO13_C12", in_pullup),
 318         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO14_B12", in_pullup),
 319         /* MCDAT0DIR */
 320         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO15_A12", out_high),
 321         /* MCDAT31DIR */
 322         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO16_C13", out_high),
 323         /* MCMSFBCLK */
 324         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO24_C15", in_pullup),
 325         /* CD input GPIO */
 326         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO111_H21", in_nopull),
 327         /* CD bias drive */
 328         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO112_J21", out_low),
 329 };
 330
 331 static void __init nhk8815_platform_init(void)
 332 {
 333         pinctrl_register_mappings(nhk8815_pinmap, ARRAY_SIZE(nhk8815_pinmap));
 334         cpu8815_platform_init();
 335         nhk8815_onenand_init();
 336         platform_add_devices(nhk8815_platform_devices,
 337                              ARRAY_SIZE(nhk8815_platform_devices));
 338
 339         amba_apb_device_add(NULL, "uart0", NOMADIK_UART0_BASE, SZ_4K, IRQ_UART0, 0, NULL, 0);
 340         amba_apb_device_add(NULL, "uart1", NOMADIK_UART1_BASE, SZ_4K, IRQ_UART1, 0, NULL, 0);
 341
 342         i2c_register_board_info(0, nhk8815_i2c0_devices,
 343                                 ARRAY_SIZE(nhk8815_i2c0_devices));
 344         i2c_register_board_info(1, nhk8815_i2c1_devices,
 345                                 ARRAY_SIZE(nhk8815_i2c1_devices));
 346         i2c_register_board_info(2, nhk8815_i2c2_devices,
 347                                 ARRAY_SIZE(nhk8815_i2c2_devices));
 348 }
 349
 350 MACHINE_START(NOMADIK, "NHK8815")
 351         /* Maintainer: ST MicroElectronics */
 352         .atag_offset    = 0x100,
 353         .map_io         = cpu8815_map_io,
 354         .init_irq       = cpu8815_init_irq,
 355         .timer          = &nomadik_timer,
 356         .init_machine   = nhk8815_platform_init,
 357         .restart        = cpu8815_restart,
 358 MACHINE_END