arch/arm/mach-shmobile/board-g4evm.c

   1 /*
   2  * G4EVM board support
   3  *
   4  * Copyright (C) 2010  Magnus Damm
   5  * Copyright (C) 2008  Yoshihiro Shimoda
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20 #include <linux/kernel.h>
  21 #include <linux/init.h>
  22 #include <linux/interrupt.h>
  23 #include <linux/irq.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/delay.h>
  26 #include <linux/mtd/mtd.h>
  27 #include <linux/mtd/partitions.h>
  28 #include <linux/mtd/physmap.h>
  29 #include <linux/regulator/fixed.h>
  30 #include <linux/regulator/machine.h>
  31 #include <linux/usb/r8a66597.h>
  32 #include <linux/io.h>
  33 #include <linux/input.h>
  34 #include <linux/input/sh_keysc.h>
  35 #include <linux/mmc/host.h>
  36 #include <linux/mmc/sh_mobile_sdhi.h>
  37 #include <linux/gpio.h>
  38 #include <linux/dma-mapping.h>
  39 #include <mach/irqs.h>
  40 #include <mach/sh7377.h>
  41 #include <mach/common.h>
  42 #include <asm/mach-types.h>
  43 #include <asm/mach/arch.h>
  44
  45 #include "sh-gpio.h"
  46
  47 /*
  48  * SDHI
  49  *
  50  * SDHI0 : card detection is possible
  51  * SDHI1 : card detection is impossible
  52  *
  53  * [G4-MAIN-BOARD]
  54  * JP74 : short         # DBG_2V8A    for SDHI0
  55  * JP75 : NC            # DBG_3V3A    for SDHI0
  56  * JP76 : NC            # DBG_3V3A_SD for SDHI0
  57  * JP77 : NC            # 3V3A_SDIO   for SDHI1
  58  * JP78 : short         # DBG_2V8A    for SDHI1
  59  * JP79 : NC            # DBG_3V3A    for SDHI1
  60  * JP80 : NC            # DBG_3V3A_SD for SDHI1
  61  *
  62  * [G4-CORE-BOARD]
  63  * S32 : all off        # to dissever from G3-CORE_DBG board
  64  * S33 : all off        # to dissever from G3-CORE_DBG board
  65  *
  66  * [G3-CORE_DBG-BOARD]
  67  * S1  : all off        # to dissever from G3-CORE_DBG board
  68  * S3  : all off        # to dissever from G3-CORE_DBG board
  69  * S4  : all off        # to dissever from G3-CORE_DBG board
  70  */
  71
  72 static struct mtd_partition nor_flash_partitions[] = {
  73         {
  74                 .name           = "loader",
  75                 .offset         = 0x00000000,
  76                 .size           = 512 * 1024,
  77         },
  78         {
  79                 .name           = "bootenv",
  80                 .offset         = MTDPART_OFS_APPEND,
  81                 .size           = 512 * 1024,
  82         },
  83         {
  84                 .name           = "kernel_ro",
  85                 .offset         = MTDPART_OFS_APPEND,
  86                 .size           = 8 * 1024 * 1024,
  87                 .mask_flags     = MTD_WRITEABLE,
  88         },
  89         {
  90                 .name           = "kernel",
  91                 .offset         = MTDPART_OFS_APPEND,
  92                 .size           = 8 * 1024 * 1024,
  93         },
  94         {
  95                 .name           = "data",
  96                 .offset         = MTDPART_OFS_APPEND,
  97                 .size           = MTDPART_SIZ_FULL,
  98         },
  99 };
 100
 101 static struct physmap_flash_data nor_flash_data = {
 102         .width          = 2,
 103         .parts          = nor_flash_partitions,
 104         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
 105 };
 106
 107 static struct resource nor_flash_resources[] = {
 108         [0]     = {
 109                 .start  = 0x00000000,
 110                 .end    = 0x08000000 - 1,
 111                 .flags  = IORESOURCE_MEM,
 112         }
 113 };
 114
 115 static struct platform_device nor_flash_device = {
 116         .name           = "physmap-flash",
 117         .dev            = {
 118                 .platform_data  = &nor_flash_data,
 119         },
 120         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 121         .resource       = nor_flash_resources,
 122 };
 123
 124 /* USBHS */
 125 static void usb_host_port_power(int port, int power)
 126 {
 127         if (!power) /* only power-on supported for now */
 128                 return;
 129
 130         /* set VBOUT/PWEN and EXTLP0 in DVSTCTR */
 131         __raw_writew(__raw_readw(IOMEM(0xe6890008)) | 0x600, IOMEM(0xe6890008));
 132 }
 133
 134 static struct r8a66597_platdata usb_host_data = {
 135         .on_chip = 1,
 136         .port_power = usb_host_port_power,
 137 };
 138
 139 static struct resource usb_host_resources[] = {
 140         [0] = {
 141                 .name   = "USBHS",
 142                 .start  = 0xe6890000,
 143                 .end    = 0xe68900e5,
 144                 .flags  = IORESOURCE_MEM,
 145         },
 146         [1] = {
 147                 .start  = evt2irq(0x0a20), /* USBHS_USHI0 */
 148                 .flags  = IORESOURCE_IRQ,
 149         },
 150 };
 151
 152 static struct platform_device usb_host_device = {
 153         .name           = "r8a66597_hcd",
 154         .id             = 0,
 155         .dev = {
 156                 .platform_data          = &usb_host_data,
 157                 .dma_mask               = NULL,
 158                 .coherent_dma_mask      = 0xffffffff,
 159         },
 160         .num_resources  = ARRAY_SIZE(usb_host_resources),
 161         .resource       = usb_host_resources,
 162 };
 163
 164 /* KEYSC */
 165 static struct sh_keysc_info keysc_info = {
 166         .mode           = SH_KEYSC_MODE_5,
 167         .scan_timing    = 3,
 168         .delay          = 100,
 169         .keycodes = {
 170                 KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F,
 171                 KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L,
 172                 KEY_M, KEY_N, KEY_U, KEY_P, KEY_Q, KEY_R,
 173                 KEY_S, KEY_T, KEY_U, KEY_V, KEY_W, KEY_X,
 174                 KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP, KEY_WAKEUP, KEY_COFFEE,
 175                 KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5,
 176                 KEY_6, KEY_7, KEY_8, KEY_9, KEY_STOP, KEY_COMPUTER,
 177         },
 178 };
 179
 180 static struct resource keysc_resources[] = {
 181         [0] = {
 182                 .name   = "KEYSC",
 183                 .start  = 0xe61b0000,
 184                 .end    = 0xe61b000f,
 185                 .flags  = IORESOURCE_MEM,
 186         },
 187         [1] = {
 188                 .start  = evt2irq(0x0be0), /* KEYSC_KEY */
 189                 .flags  = IORESOURCE_IRQ,
 190         },
 191 };
 192
 193 static struct platform_device keysc_device = {
 194         .name           = "sh_keysc",
 195         .id             = 0, /* keysc0 clock */
 196         .num_resources  = ARRAY_SIZE(keysc_resources),
 197         .resource       = keysc_resources,
 198         .dev    = {
 199                 .platform_data  = &keysc_info,
 200         },
 201 };
 202
 203 /* Fixed 3.3V regulator to be used by SDHI0 and SDHI1 */
 204 static struct regulator_consumer_supply fixed3v3_power_consumers[] =
 205 {
 206         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
 207         REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.0"),
 208         REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"),
 209         REGULATOR_SUPPLY("vqmmc", "sh_mobile_sdhi.1"),
 210 };
 211
 212 /* SDHI */
 213 static struct sh_mobile_sdhi_info sdhi0_info = {
 214         .tmio_caps      = MMC_CAP_SDIO_IRQ,
 215 };
 216
 217 static struct resource sdhi0_resources[] = {
 218         [0] = {
 219                 .name   = "SDHI0",
 220                 .start  = 0xe6d50000,
 221                 .end    = 0xe6d500ff,
 222                 .flags  = IORESOURCE_MEM,
 223         },
 224         [1] = {
 225                 .start  = evt2irq(0x0e00), /* SDHI0 */
 226                 .flags  = IORESOURCE_IRQ,
 227         },
 228 };
 229
 230 static struct platform_device sdhi0_device = {
 231         .name           = "sh_mobile_sdhi",
 232         .num_resources  = ARRAY_SIZE(sdhi0_resources),
 233         .resource       = sdhi0_resources,
 234         .id             = 0,
 235         .dev    = {
 236                 .platform_data  = &sdhi0_info,
 237         },
 238 };
 239
 240 static struct sh_mobile_sdhi_info sdhi1_info = {
 241         .tmio_caps      = MMC_CAP_NONREMOVABLE | MMC_CAP_SDIO_IRQ,
 242 };
 243
 244 static struct resource sdhi1_resources[] = {
 245         [0] = {
 246                 .name   = "SDHI1",
 247                 .start  = 0xe6d60000,
 248                 .end    = 0xe6d600ff,
 249                 .flags  = IORESOURCE_MEM,
 250         },
 251         [1] = {
 252                 .start  = evt2irq(0x0e80), /* SDHI1 */
 253                 .flags  = IORESOURCE_IRQ,
 254         },
 255 };
 256
 257 static struct platform_device sdhi1_device = {
 258         .name           = "sh_mobile_sdhi",
 259         .num_resources  = ARRAY_SIZE(sdhi1_resources),
 260         .resource       = sdhi1_resources,
 261         .id             = 1,
 262         .dev    = {
 263                 .platform_data  = &sdhi1_info,
 264         },
 265 };
 266
 267 static struct platform_device *g4evm_devices[] __initdata = {
 268         &nor_flash_device,
 269         &usb_host_device,
 270         &keysc_device,
 271         &sdhi0_device,
 272         &sdhi1_device,
 273 };
 274
 275 #define GPIO_SDHID0_D0  IOMEM(0xe60520fc)
 276 #define GPIO_SDHID0_D1  IOMEM(0xe60520fd)
 277 #define GPIO_SDHID0_D2  IOMEM(0xe60520fe)
 278 #define GPIO_SDHID0_D3  IOMEM(0xe60520ff)
 279 #define GPIO_SDHICMD0   IOMEM(0xe6052100)
 280
 281 #define GPIO_SDHID1_D0  IOMEM(0xe6052103)
 282 #define GPIO_SDHID1_D1  IOMEM(0xe6052104)
 283 #define GPIO_SDHID1_D2  IOMEM(0xe6052105)
 284 #define GPIO_SDHID1_D3  IOMEM(0xe6052106)
 285 #define GPIO_SDHICMD1   IOMEM(0xe6052107)
 286
 287 static void __init g4evm_init(void)
 288 {
 289         regulator_register_always_on(0, "fixed-3.3V", fixed3v3_power_consumers,
 290                                      ARRAY_SIZE(fixed3v3_power_consumers), 3300000);
 291
 292         sh7377_pinmux_init();
 293
 294         /* Lit DS14 LED */
 295         gpio_request(GPIO_PORT109, NULL);
 296         gpio_direction_output(GPIO_PORT109, 1);
 297         gpio_export(GPIO_PORT109, 1);
 298
 299         /* Lit DS15 LED */
 300         gpio_request(GPIO_PORT110, NULL);
 301         gpio_direction_output(GPIO_PORT110, 1);
 302         gpio_export(GPIO_PORT110, 1);
 303
 304         /* Lit DS16 LED */
 305         gpio_request(GPIO_PORT112, NULL);
 306         gpio_direction_output(GPIO_PORT112, 1);
 307         gpio_export(GPIO_PORT112, 1);
 308
 309         /* Lit DS17 LED */
 310         gpio_request(GPIO_PORT113, NULL);
 311         gpio_direction_output(GPIO_PORT113, 1);
 312         gpio_export(GPIO_PORT113, 1);
 313
 314         /* USBHS */
 315         gpio_request(GPIO_FN_VBUS_0, NULL);
 316         gpio_request(GPIO_FN_PWEN, NULL);
 317         gpio_request(GPIO_FN_OVCN, NULL);
 318         gpio_request(GPIO_FN_OVCN2, NULL);
 319         gpio_request(GPIO_FN_EXTLP, NULL);
 320         gpio_request(GPIO_FN_IDIN, NULL);
 321
 322         /* setup USB phy */
 323         __raw_writew(0x0200, IOMEM(0xe605810a));       /* USBCR1 */
 324         __raw_writew(0x00e0, IOMEM(0xe60581c0));       /* CPFCH */
 325         __raw_writew(0x6010, IOMEM(0xe60581c6));       /* CGPOSR */
 326         __raw_writew(0x8a0a, IOMEM(0xe605810c));       /* USBCR2 */
 327
 328         /* KEYSC @ CN31 */
 329         gpio_request(GPIO_FN_PORT60_KEYOUT5, NULL);
 330         gpio_request(GPIO_FN_PORT61_KEYOUT4, NULL);
 331         gpio_request(GPIO_FN_PORT62_KEYOUT3, NULL);
 332         gpio_request(GPIO_FN_PORT63_KEYOUT2, NULL);
 333         gpio_request(GPIO_FN_PORT64_KEYOUT1, NULL);
 334         gpio_request(GPIO_FN_PORT65_KEYOUT0, NULL);
 335         gpio_request(GPIO_FN_PORT66_KEYIN0_PU, NULL);
 336         gpio_request(GPIO_FN_PORT67_KEYIN1_PU, NULL);
 337         gpio_request(GPIO_FN_PORT68_KEYIN2_PU, NULL);
 338         gpio_request(GPIO_FN_PORT69_KEYIN3_PU, NULL);
 339         gpio_request(GPIO_FN_PORT70_KEYIN4_PU, NULL);
 340         gpio_request(GPIO_FN_PORT71_KEYIN5_PU, NULL);
 341         gpio_request(GPIO_FN_PORT72_KEYIN6_PU, NULL);
 342
 343         /* SDHI0 */
 344         gpio_request(GPIO_FN_SDHICLK0, NULL);
 345         gpio_request(GPIO_FN_SDHICD0, NULL);
 346         gpio_request(GPIO_FN_SDHID0_0, NULL);
 347         gpio_request(GPIO_FN_SDHID0_1, NULL);
 348         gpio_request(GPIO_FN_SDHID0_2, NULL);
 349         gpio_request(GPIO_FN_SDHID0_3, NULL);
 350         gpio_request(GPIO_FN_SDHICMD0, NULL);
 351         gpio_request(GPIO_FN_SDHIWP0, NULL);
 352         gpio_request_pullup(GPIO_SDHID0_D0);
 353         gpio_request_pullup(GPIO_SDHID0_D1);
 354         gpio_request_pullup(GPIO_SDHID0_D2);
 355         gpio_request_pullup(GPIO_SDHID0_D3);
 356         gpio_request_pullup(GPIO_SDHICMD0);
 357
 358         /* SDHI1 */
 359         gpio_request(GPIO_FN_SDHICLK1, NULL);
 360         gpio_request(GPIO_FN_SDHID1_0, NULL);
 361         gpio_request(GPIO_FN_SDHID1_1, NULL);
 362         gpio_request(GPIO_FN_SDHID1_2, NULL);
 363         gpio_request(GPIO_FN_SDHID1_3, NULL);
 364         gpio_request(GPIO_FN_SDHICMD1, NULL);
 365         gpio_request_pullup(GPIO_SDHID1_D0);
 366         gpio_request_pullup(GPIO_SDHID1_D1);
 367         gpio_request_pullup(GPIO_SDHID1_D2);
 368         gpio_request_pullup(GPIO_SDHID1_D3);
 369         gpio_request_pullup(GPIO_SDHICMD1);
 370
 371         sh7377_add_standard_devices();
 372
 373         platform_add_devices(g4evm_devices, ARRAY_SIZE(g4evm_devices));
 374 }
 375
 376 MACHINE_START(G4EVM, "g4evm")
 377         .map_io         = sh7377_map_io,
 378         .init_early     = sh7377_add_early_devices,
 379         .init_irq       = sh7377_init_irq,
 380         .handle_irq     = shmobile_handle_irq_intc,
 381         .init_machine   = g4evm_init,
 382         .init_late      = shmobile_init_late,
 383         .timer          = &shmobile_timer,
 384 MACHINE_END