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 <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/mtu.h>
  37
  38 #include <linux/platform_data/mtd-nomadik-nand.h>
  39 #include <mach/fsmc.h>
  40
  41 #include "cpu-8815.h"
  42
  43 /* Initial value for SRC control register: all timers use MXTAL/8 source */
  44 #define SRC_CR_INIT_MASK        0x00007fff
  45 #define SRC_CR_INIT_VAL         0x2aaa8000
  46
  47 /* These addresses span 16MB, so use three individual pages */
  48 static struct resource nhk8815_nand_resources[] = {
  49         {
  50                 .name = "nand_addr",
  51                 .start = NAND_IO_ADDR,
  52                 .end = NAND_IO_ADDR + 0xfff,
  53                 .flags = IORESOURCE_MEM,
  54         }, {
  55                 .name = "nand_cmd",
  56                 .start = NAND_IO_CMD,
  57                 .end = NAND_IO_CMD + 0xfff,
  58                 .flags = IORESOURCE_MEM,
  59         }, {
  60                 .name = "nand_data",
  61                 .start = NAND_IO_DATA,
  62                 .end = NAND_IO_DATA + 0xfff,
  63                 .flags = IORESOURCE_MEM,
  64         }
  65 };
  66
  67 static int nhk8815_nand_init(void)
  68 {
  69         /* FSMC setup for nand chip select (8-bit nand in 8815NHK) */
  70         writel(0x0000000E, FSMC_PCR(0));
  71         writel(0x000D0A00, FSMC_PMEM(0));
  72         writel(0x00100A00, FSMC_PATT(0));
  73
  74         /* enable access to the chip select area */
  75         writel(readl(FSMC_PCR(0)) | 0x04, FSMC_PCR(0));
  76
  77         return 0;
  78 }
  79
  80 /*
  81  * These partitions are the same as those used in the 2.6.20 release
  82  * shipped by the vendor; the first two partitions are mandated
  83  * by the boot ROM, and the bootloader area is somehow oversized...
  84  */
  85 static struct mtd_partition nhk8815_partitions[] = {
  86         {
  87                 .name   = "X-Loader(NAND)",
  88                 .offset = 0,
  89                 .size   = SZ_256K,
  90         }, {
  91                 .name   = "MemInit(NAND)",
  92                 .offset = MTDPART_OFS_APPEND,
  93                 .size   = SZ_256K,
  94         }, {
  95                 .name   = "BootLoader(NAND)",
  96                 .offset = MTDPART_OFS_APPEND,
  97                 .size   = SZ_2M,
  98         }, {
  99                 .name   = "Kernel zImage(NAND)",
 100                 .offset = MTDPART_OFS_APPEND,
 101                 .size   = 3 * SZ_1M,
 102         }, {
 103                 .name   = "Root Filesystem(NAND)",
 104                 .offset = MTDPART_OFS_APPEND,
 105                 .size   = 22 * SZ_1M,
 106         }, {
 107                 .name   = "User Filesystem(NAND)",
 108                 .offset = MTDPART_OFS_APPEND,
 109                 .size   = MTDPART_SIZ_FULL,
 110         }
 111 };
 112
 113 static struct nomadik_nand_platform_data nhk8815_nand_data = {
 114         .parts          = nhk8815_partitions,
 115         .nparts         = ARRAY_SIZE(nhk8815_partitions),
 116         .options        = NAND_COPYBACK | NAND_CACHEPRG | NAND_NO_PADDING,
 117         .init           = nhk8815_nand_init,
 118 };
 119
 120 static struct platform_device nhk8815_nand_device = {
 121         .name           = "nomadik_nand",
 122         .dev            = {
 123                 .platform_data = &nhk8815_nand_data,
 124         },
 125         .resource       = nhk8815_nand_resources,
 126         .num_resources  = ARRAY_SIZE(nhk8815_nand_resources),
 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 static void __init nhk8815_onenand_init(void)
 182 {
 183 #ifdef CONFIG_MTD_ONENAND
 184        /* Set up SMCS0 for OneNand */
 185         writel(0x000030db, FSMC_BCR(0));
 186         writel(0x02100551, FSMC_BTR(0));
 187 #endif
 188 }
 189
 190 static struct mmci_platform_data mmcsd_plat_data = {
 191         .ocr_mask = MMC_VDD_29_30,
 192         .f_max = 48000000,
 193         .gpio_wp = -1,
 194         .gpio_cd = 111,
 195         .cd_invert = true,
 196         .capabilities = MMC_CAP_MMC_HIGHSPEED |
 197         MMC_CAP_SD_HIGHSPEED | MMC_CAP_4_BIT_DATA,
 198 };
 199
 200 static int __init nhk8815_mmcsd_init(void)
 201 {
 202         int ret;
 203
 204         ret = gpio_request(112, "card detect bias");
 205         if (ret)
 206                 return ret;
 207         gpio_direction_output(112, 0);
 208         amba_apb_device_add(NULL, "mmci", NOMADIK_SDI_BASE, SZ_4K, IRQ_SDMMC, 0, &mmcsd_plat_data, 0x10180180);
 209         return 0;
 210 }
 211 module_init(nhk8815_mmcsd_init);
 212
 213 static struct resource nhk8815_eth_resources[] = {
 214         {
 215                 .name = "smc91x-regs",
 216                 .start = 0x34000000 + 0x300,
 217                 .end = 0x34000000 + SZ_64K - 1,
 218                 .flags = IORESOURCE_MEM,
 219         }, {
 220                 .start = NOMADIK_GPIO_TO_IRQ(115),
 221                 .end = NOMADIK_GPIO_TO_IRQ(115),
 222                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 223         }
 224 };
 225
 226 static struct platform_device nhk8815_eth_device = {
 227         .name = "smc91x",
 228         .resource = nhk8815_eth_resources,
 229         .num_resources = ARRAY_SIZE(nhk8815_eth_resources),
 230 };
 231
 232 static int __init nhk8815_eth_init(void)
 233 {
 234         int gpio_nr = 115; /* hardwired in the board */
 235         int err;
 236
 237         err = gpio_request(gpio_nr, "eth_irq");
 238         if (!err) err = nmk_gpio_set_mode(gpio_nr, NMK_GPIO_ALT_GPIO);
 239         if (!err) err = gpio_direction_input(gpio_nr);
 240         if (err)
 241                 pr_err("Error %i in %s\n", err, __func__);
 242         return err;
 243 }
 244 device_initcall(nhk8815_eth_init);
 245
 246 static struct platform_device *nhk8815_platform_devices[] __initdata = {
 247         &nhk8815_nand_device,
 248         &nhk8815_onenand_device,
 249         &nhk8815_eth_device,
 250         /* will add more devices */
 251 };
 252
 253 static void __init nomadik_timer_init(void)
 254 {
 255         u32 src_cr;
 256
 257         /* Configure timer sources in "system reset controller" ctrl reg */
 258         src_cr = readl(io_p2v(NOMADIK_SRC_BASE));
 259         src_cr &= SRC_CR_INIT_MASK;
 260         src_cr |= SRC_CR_INIT_VAL;
 261         writel(src_cr, io_p2v(NOMADIK_SRC_BASE));
 262
 263         nmdk_timer_init(io_p2v(NOMADIK_MTU0_BASE));
 264 }
 265
 266 static struct sys_timer nomadik_timer = {
 267         .init   = nomadik_timer_init,
 268 };
 269
 270 static struct i2c_board_info __initdata nhk8815_i2c0_devices[] = {
 271         {
 272                 I2C_BOARD_INFO("stw4811", 0x2d),
 273         },
 274 };
 275
 276 static struct i2c_board_info __initdata nhk8815_i2c1_devices[] = {
 277         {
 278                 I2C_BOARD_INFO("camera", 0x10),
 279         },
 280         {
 281                 I2C_BOARD_INFO("stw5095", 0x1a),
 282         },
 283         {
 284                 I2C_BOARD_INFO("lis3lv02dl", 0x1d),
 285         },
 286 };
 287
 288 static struct i2c_board_info __initdata nhk8815_i2c2_devices[] = {
 289         {
 290                 I2C_BOARD_INFO("stw4811-usb", 0x2d),
 291         },
 292 };
 293
 294 static unsigned long out_low[] = { PIN_OUTPUT_LOW };
 295 static unsigned long out_high[] = { PIN_OUTPUT_HIGH };
 296 static unsigned long in_nopull[] = { PIN_INPUT_NOPULL };
 297 static unsigned long in_pullup[] = { PIN_INPUT_PULLUP };
 298
 299 static struct pinctrl_map __initdata nhk8815_pinmap[] = {
 300         PIN_MAP_MUX_GROUP_DEFAULT("uart0", "pinctrl-stn8815", "u0_a_1", "u0"),
 301         PIN_MAP_MUX_GROUP_DEFAULT("uart1", "pinctrl-stn8815", "u1_a_1", "u1"),
 302         /* Hog in MMC/SD card mux */
 303         PIN_MAP_MUX_GROUP_HOG_DEFAULT("pinctrl-stn8815", "mmcsd_a_1", "mmcsd"),
 304         /* MCCLK */
 305         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO8_B10", out_low),
 306         /* MCCMD */
 307         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO9_A10", in_pullup),
 308         /* MCCMDDIR */
 309         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO10_C11", out_high),
 310         /* MCDAT3-0 */
 311         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO11_B11", in_pullup),
 312         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO12_A11", in_pullup),
 313         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO13_C12", in_pullup),
 314         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO14_B12", in_pullup),
 315         /* MCDAT0DIR */
 316         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO15_A12", out_high),
 317         /* MCDAT31DIR */
 318         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO16_C13", out_high),
 319         /* MCMSFBCLK */
 320         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO24_C15", in_pullup),
 321         /* CD input GPIO */
 322         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO111_H21", in_nopull),
 323         /* CD bias drive */
 324         PIN_MAP_CONFIGS_PIN_HOG_DEFAULT("pinctrl-stn8815", "GPIO112_J21", out_low),
 325 };
 326
 327 static void __init nhk8815_platform_init(void)
 328 {
 329         pinctrl_register_mappings(nhk8815_pinmap, ARRAY_SIZE(nhk8815_pinmap));
 330         cpu8815_platform_init();
 331         nhk8815_onenand_init();
 332         platform_add_devices(nhk8815_platform_devices,
 333                              ARRAY_SIZE(nhk8815_platform_devices));
 334
 335         amba_apb_device_add(NULL, "uart0", NOMADIK_UART0_BASE, SZ_4K, IRQ_UART0, 0, NULL, 0);
 336         amba_apb_device_add(NULL, "uart1", NOMADIK_UART1_BASE, SZ_4K, IRQ_UART1, 0, NULL, 0);
 337
 338         i2c_register_board_info(0, nhk8815_i2c0_devices,
 339                                 ARRAY_SIZE(nhk8815_i2c0_devices));
 340         i2c_register_board_info(1, nhk8815_i2c1_devices,
 341                                 ARRAY_SIZE(nhk8815_i2c1_devices));
 342         i2c_register_board_info(2, nhk8815_i2c2_devices,
 343                                 ARRAY_SIZE(nhk8815_i2c2_devices));
 344 }
 345
 346 MACHINE_START(NOMADIK, "NHK8815")
 347         /* Maintainer: ST MicroElectronics */
 348         .atag_offset    = 0x100,
 349         .map_io         = cpu8815_map_io,
 350         .init_irq       = cpu8815_init_irq,
 351         .handle_irq     = vic_handle_irq,
 352         .timer          = &nomadik_timer,
 353         .init_machine   = nhk8815_platform_init,
 354         .restart        = cpu8815_restart,
 355 MACHINE_END