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