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/usb/r8a66597.h>
  30 #include <linux/io.h>
  31 #include <linux/input.h>
  32 #include <linux/input/sh_keysc.h>
  33 #include <linux/mmc/host.h>
  34 #include <linux/mmc/sh_mobile_sdhi.h>
  35 #include <linux/gpio.h>
  36 #include <linux/dma-mapping.h>
  37 #include <mach/sh7377.h>
  38 #include <mach/common.h>
  39 #include <asm/mach-types.h>
  40 #include <asm/mach/arch.h>
  41 #include <asm/mach/map.h>
  42 #include <asm/mach/time.h>
  43
  44 /*
  45  * SDHI
  46  *
  47  * SDHI0 : card detection is possible
  48  * SDHI1 : card detection is impossible
  49  *
  50  * [G4-MAIN-BOARD]
  51  * JP74 : short         # DBG_2V8A    for SDHI0
  52  * JP75 : NC            # DBG_3V3A    for SDHI0
  53  * JP76 : NC            # DBG_3V3A_SD for SDHI0
  54  * JP77 : NC            # 3V3A_SDIO   for SDHI1
  55  * JP78 : short         # DBG_2V8A    for SDHI1
  56  * JP79 : NC            # DBG_3V3A    for SDHI1
  57  * JP80 : NC            # DBG_3V3A_SD for SDHI1
  58  *
  59  * [G4-CORE-BOARD]
  60  * S32 : all off        # to dissever from G3-CORE_DBG board
  61  * S33 : all off        # to dissever from G3-CORE_DBG board
  62  *
  63  * [G3-CORE_DBG-BOARD]
  64  * S1  : all off        # to dissever from G3-CORE_DBG board
  65  * S3  : all off        # to dissever from G3-CORE_DBG board
  66  * S4  : all off        # to dissever from G3-CORE_DBG board
  67  */
  68
  69 static struct mtd_partition nor_flash_partitions[] = {
  70         {
  71                 .name           = "loader",
  72                 .offset         = 0x00000000,
  73                 .size           = 512 * 1024,
  74         },
  75         {
  76                 .name           = "bootenv",
  77                 .offset         = MTDPART_OFS_APPEND,
  78                 .size           = 512 * 1024,
  79         },
  80         {
  81                 .name           = "kernel_ro",
  82                 .offset         = MTDPART_OFS_APPEND,
  83                 .size           = 8 * 1024 * 1024,
  84                 .mask_flags     = MTD_WRITEABLE,
  85         },
  86         {
  87                 .name           = "kernel",
  88                 .offset         = MTDPART_OFS_APPEND,
  89                 .size           = 8 * 1024 * 1024,
  90         },
  91         {
  92                 .name           = "data",
  93                 .offset         = MTDPART_OFS_APPEND,
  94                 .size           = MTDPART_SIZ_FULL,
  95         },
  96 };
  97
  98 static struct physmap_flash_data nor_flash_data = {
  99         .width          = 2,
 100         .parts          = nor_flash_partitions,
 101         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
 102 };
 103
 104 static struct resource nor_flash_resources[] = {
 105         [0]     = {
 106                 .start  = 0x00000000,
 107                 .end    = 0x08000000 - 1,
 108                 .flags  = IORESOURCE_MEM,
 109         }
 110 };
 111
 112 static struct platform_device nor_flash_device = {
 113         .name           = "physmap-flash",
 114         .dev            = {
 115                 .platform_data  = &nor_flash_data,
 116         },
 117         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 118         .resource       = nor_flash_resources,
 119 };
 120
 121 /* USBHS */
 122 static void usb_host_port_power(int port, int power)
 123 {
 124         if (!power) /* only power-on supported for now */
 125                 return;
 126
 127         /* set VBOUT/PWEN and EXTLP0 in DVSTCTR */
 128         __raw_writew(__raw_readw(0xe6890008) | 0x600, 0xe6890008);
 129 }
 130
 131 static struct r8a66597_platdata usb_host_data = {
 132         .on_chip = 1,
 133         .port_power = usb_host_port_power,
 134 };
 135
 136 static struct resource usb_host_resources[] = {
 137         [0] = {
 138                 .name   = "USBHS",
 139                 .start  = 0xe6890000,
 140                 .end    = 0xe68900e5,
 141                 .flags  = IORESOURCE_MEM,
 142         },
 143         [1] = {
 144                 .start  = evt2irq(0x0a20), /* USBHS_USHI0 */
 145                 .flags  = IORESOURCE_IRQ,
 146         },
 147 };
 148
 149 static struct platform_device usb_host_device = {
 150         .name           = "r8a66597_hcd",
 151         .id             = 0,
 152         .dev = {
 153                 .platform_data          = &usb_host_data,
 154                 .dma_mask               = NULL,
 155                 .coherent_dma_mask      = 0xffffffff,
 156         },
 157         .num_resources  = ARRAY_SIZE(usb_host_resources),
 158         .resource       = usb_host_resources,
 159 };
 160
 161 /* KEYSC */
 162 static struct sh_keysc_info keysc_info = {
 163         .mode           = SH_KEYSC_MODE_5,
 164         .scan_timing    = 3,
 165         .delay          = 100,
 166         .keycodes = {
 167                 KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F,
 168                 KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L,
 169                 KEY_M, KEY_N, KEY_U, KEY_P, KEY_Q, KEY_R,
 170                 KEY_S, KEY_T, KEY_U, KEY_V, KEY_W, KEY_X,
 171                 KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP, KEY_WAKEUP, KEY_COFFEE,
 172                 KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5,
 173                 KEY_6, KEY_7, KEY_8, KEY_9, KEY_STOP, KEY_COMPUTER,
 174         },
 175 };
 176
 177 static struct resource keysc_resources[] = {
 178         [0] = {
 179                 .name   = "KEYSC",
 180                 .start  = 0xe61b0000,
 181                 .end    = 0xe61b000f,
 182                 .flags  = IORESOURCE_MEM,
 183         },
 184         [1] = {
 185                 .start  = evt2irq(0x0be0), /* KEYSC_KEY */
 186                 .flags  = IORESOURCE_IRQ,
 187         },
 188 };
 189
 190 static struct platform_device keysc_device = {
 191         .name           = "sh_keysc",
 192         .id             = 0, /* keysc0 clock */
 193         .num_resources  = ARRAY_SIZE(keysc_resources),
 194         .resource       = keysc_resources,
 195         .dev    = {
 196                 .platform_data  = &keysc_info,
 197         },
 198 };
 199
 200 /* SDHI */
 201 static struct sh_mobile_sdhi_info sdhi0_info = {
 202         .tmio_caps      = MMC_CAP_SDIO_IRQ,
 203 };
 204
 205 static struct resource sdhi0_resources[] = {
 206         [0] = {
 207                 .name   = "SDHI0",
 208                 .start  = 0xe6d50000,
 209                 .end    = 0xe6d500ff,
 210                 .flags  = IORESOURCE_MEM,
 211         },
 212         [1] = {
 213                 .start  = evt2irq(0x0e00), /* SDHI0 */
 214                 .flags  = IORESOURCE_IRQ,
 215         },
 216 };
 217
 218 static struct platform_device sdhi0_device = {
 219         .name           = "sh_mobile_sdhi",
 220         .num_resources  = ARRAY_SIZE(sdhi0_resources),
 221         .resource       = sdhi0_resources,
 222         .id             = 0,
 223         .dev    = {
 224                 .platform_data  = &sdhi0_info,
 225         },
 226 };
 227
 228 static struct sh_mobile_sdhi_info sdhi1_info = {
 229         .tmio_caps      = MMC_CAP_NONREMOVABLE | MMC_CAP_SDIO_IRQ,
 230 };
 231
 232 static struct resource sdhi1_resources[] = {
 233         [0] = {
 234                 .name   = "SDHI1",
 235                 .start  = 0xe6d60000,
 236                 .end    = 0xe6d600ff,
 237                 .flags  = IORESOURCE_MEM,
 238         },
 239         [1] = {
 240                 .start  = evt2irq(0x0e80), /* SDHI1 */
 241                 .flags  = IORESOURCE_IRQ,
 242         },
 243 };
 244
 245 static struct platform_device sdhi1_device = {
 246         .name           = "sh_mobile_sdhi",
 247         .num_resources  = ARRAY_SIZE(sdhi1_resources),
 248         .resource       = sdhi1_resources,
 249         .id             = 1,
 250         .dev    = {
 251                 .platform_data  = &sdhi1_info,
 252         },
 253 };
 254
 255 static struct platform_device *g4evm_devices[] __initdata = {
 256         &nor_flash_device,
 257         &usb_host_device,
 258         &keysc_device,
 259         &sdhi0_device,
 260         &sdhi1_device,
 261 };
 262
 263 static struct map_desc g4evm_io_desc[] __initdata = {
 264         /* create a 1:1 entity map for 0xe6xxxxxx
 265          * used by CPGA, INTC and PFC.
 266          */
 267         {
 268                 .virtual        = 0xe6000000,
 269                 .pfn            = __phys_to_pfn(0xe6000000),
 270                 .length         = 256 << 20,
 271                 .type           = MT_DEVICE_NONSHARED
 272         },
 273 };
 274
 275 static void __init g4evm_map_io(void)
 276 {
 277         iotable_init(g4evm_io_desc, ARRAY_SIZE(g4evm_io_desc));
 278         /* DMA memory at 0xf6000000 - 0xffdfffff */
 279         init_consistent_dma_size(158 << 20);
 280
 281         /* setup early devices and console here as well */
 282         sh7377_add_early_devices();
 283         shmobile_setup_console();
 284 }
 285
 286 #define GPIO_SDHID0_D0  0xe60520fc
 287 #define GPIO_SDHID0_D1  0xe60520fd
 288 #define GPIO_SDHID0_D2  0xe60520fe
 289 #define GPIO_SDHID0_D3  0xe60520ff
 290 #define GPIO_SDHICMD0   0xe6052100
 291
 292 #define GPIO_SDHID1_D0  0xe6052103
 293 #define GPIO_SDHID1_D1  0xe6052104
 294 #define GPIO_SDHID1_D2  0xe6052105
 295 #define GPIO_SDHID1_D3  0xe6052106
 296 #define GPIO_SDHICMD1   0xe6052107
 297
 298 /*
 299  * FIXME !!
 300  *
 301  * gpio_pull_up is quick_hack.
 302  *
 303  * current gpio frame work doesn't have
 304  * the method to control only pull up/down/free.
 305  * this function should be replaced by correct gpio function
 306  */
 307 static void __init gpio_pull_up(u32 addr)
 308 {
 309         u8 data = __raw_readb(addr);
 310
 311         data &= 0x0F;
 312         data |= 0xC0;
 313         __raw_writeb(data, addr);
 314 }
 315
 316 static void __init g4evm_init(void)
 317 {
 318         sh7377_pinmux_init();
 319
 320         /* Lit DS14 LED */
 321         gpio_request(GPIO_PORT109, NULL);
 322         gpio_direction_output(GPIO_PORT109, 1);
 323         gpio_export(GPIO_PORT109, 1);
 324
 325         /* Lit DS15 LED */
 326         gpio_request(GPIO_PORT110, NULL);
 327         gpio_direction_output(GPIO_PORT110, 1);
 328         gpio_export(GPIO_PORT110, 1);
 329
 330         /* Lit DS16 LED */
 331         gpio_request(GPIO_PORT112, NULL);
 332         gpio_direction_output(GPIO_PORT112, 1);
 333         gpio_export(GPIO_PORT112, 1);
 334
 335         /* Lit DS17 LED */
 336         gpio_request(GPIO_PORT113, NULL);
 337         gpio_direction_output(GPIO_PORT113, 1);
 338         gpio_export(GPIO_PORT113, 1);
 339
 340         /* USBHS */
 341         gpio_request(GPIO_FN_VBUS_0, NULL);
 342         gpio_request(GPIO_FN_PWEN, NULL);
 343         gpio_request(GPIO_FN_OVCN, NULL);
 344         gpio_request(GPIO_FN_OVCN2, NULL);
 345         gpio_request(GPIO_FN_EXTLP, NULL);
 346         gpio_request(GPIO_FN_IDIN, NULL);
 347
 348         /* setup USB phy */
 349         __raw_writew(0x0200, 0xe605810a);       /* USBCR1 */
 350         __raw_writew(0x00e0, 0xe60581c0);       /* CPFCH */
 351         __raw_writew(0x6010, 0xe60581c6);       /* CGPOSR */
 352         __raw_writew(0x8a0a, 0xe605810c);       /* USBCR2 */
 353
 354         /* KEYSC @ CN31 */
 355         gpio_request(GPIO_FN_PORT60_KEYOUT5, NULL);
 356         gpio_request(GPIO_FN_PORT61_KEYOUT4, NULL);
 357         gpio_request(GPIO_FN_PORT62_KEYOUT3, NULL);
 358         gpio_request(GPIO_FN_PORT63_KEYOUT2, NULL);
 359         gpio_request(GPIO_FN_PORT64_KEYOUT1, NULL);
 360         gpio_request(GPIO_FN_PORT65_KEYOUT0, NULL);
 361         gpio_request(GPIO_FN_PORT66_KEYIN0_PU, NULL);
 362         gpio_request(GPIO_FN_PORT67_KEYIN1_PU, NULL);
 363         gpio_request(GPIO_FN_PORT68_KEYIN2_PU, NULL);
 364         gpio_request(GPIO_FN_PORT69_KEYIN3_PU, NULL);
 365         gpio_request(GPIO_FN_PORT70_KEYIN4_PU, NULL);
 366         gpio_request(GPIO_FN_PORT71_KEYIN5_PU, NULL);
 367         gpio_request(GPIO_FN_PORT72_KEYIN6_PU, NULL);
 368
 369         /* SDHI0 */
 370         gpio_request(GPIO_FN_SDHICLK0, NULL);
 371         gpio_request(GPIO_FN_SDHICD0, NULL);
 372         gpio_request(GPIO_FN_SDHID0_0, NULL);
 373         gpio_request(GPIO_FN_SDHID0_1, NULL);
 374         gpio_request(GPIO_FN_SDHID0_2, NULL);
 375         gpio_request(GPIO_FN_SDHID0_3, NULL);
 376         gpio_request(GPIO_FN_SDHICMD0, NULL);
 377         gpio_request(GPIO_FN_SDHIWP0, NULL);
 378         gpio_pull_up(GPIO_SDHID0_D0);
 379         gpio_pull_up(GPIO_SDHID0_D1);
 380         gpio_pull_up(GPIO_SDHID0_D2);
 381         gpio_pull_up(GPIO_SDHID0_D3);
 382         gpio_pull_up(GPIO_SDHICMD0);
 383
 384         /* SDHI1 */
 385         gpio_request(GPIO_FN_SDHICLK1, NULL);
 386         gpio_request(GPIO_FN_SDHID1_0, NULL);
 387         gpio_request(GPIO_FN_SDHID1_1, NULL);
 388         gpio_request(GPIO_FN_SDHID1_2, NULL);
 389         gpio_request(GPIO_FN_SDHID1_3, NULL);
 390         gpio_request(GPIO_FN_SDHICMD1, NULL);
 391         gpio_pull_up(GPIO_SDHID1_D0);
 392         gpio_pull_up(GPIO_SDHID1_D1);
 393         gpio_pull_up(GPIO_SDHID1_D2);
 394         gpio_pull_up(GPIO_SDHID1_D3);
 395         gpio_pull_up(GPIO_SDHICMD1);
 396
 397         sh7377_add_standard_devices();
 398
 399         platform_add_devices(g4evm_devices, ARRAY_SIZE(g4evm_devices));
 400 }
 401
 402 static void __init g4evm_timer_init(void)
 403 {
 404         sh7377_clock_init();
 405         shmobile_timer.init();
 406 }
 407
 408 static struct sys_timer g4evm_timer = {
 409         .init           = g4evm_timer_init,
 410 };
 411
 412 MACHINE_START(G4EVM, "g4evm")
 413         .map_io         = g4evm_map_io,
 414         .init_irq       = sh7377_init_irq,
 415         .handle_irq     = shmobile_handle_irq_intc,
 416         .init_machine   = g4evm_init,
 417         .timer          = &g4evm_timer,
 418 MACHINE_END