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