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/mfd/sh_mobile_sdhi.h>
  34 #include <linux/gpio.h>
  35 #include <mach/sh7377.h>
  36 #include <mach/common.h>
  37 #include <asm/mach-types.h>
  38 #include <asm/mach/arch.h>
  39 #include <asm/mach/map.h>
  40 #include <asm/mach/time.h>
  41
  42 /*
  43  * SDHI
  44  *
  45  * SDHI0 : card detection is possible
  46  * SDHI1 : card detection is impossible
  47  *
  48  * [G4-MAIN-BOARD]
  49  * JP74 : short         # DBG_2V8A    for SDHI0
  50  * JP75 : NC            # DBG_3V3A    for SDHI0
  51  * JP76 : NC            # DBG_3V3A_SD for SDHI0
  52  * JP77 : NC            # 3V3A_SDIO   for SDHI1
  53  * JP78 : short         # DBG_2V8A    for SDHI1
  54  * JP79 : NC            # DBG_3V3A    for SDHI1
  55  * JP80 : NC            # DBG_3V3A_SD for SDHI1
  56  *
  57  * [G4-CORE-BOARD]
  58  * S32 : all off        # to dissever from G3-CORE_DBG board
  59  * S33 : all off        # to dissever from G3-CORE_DBG board
  60  *
  61  * [G3-CORE_DBG-BOARD]
  62  * S1  : all off        # to dissever from G3-CORE_DBG board
  63  * S3  : all off        # to dissever from G3-CORE_DBG board
  64  * S4  : all off        # to dissever from G3-CORE_DBG board
  65  */
  66
  67 static struct mtd_partition nor_flash_partitions[] = {
  68         {
  69                 .name           = "loader",
  70                 .offset         = 0x00000000,
  71                 .size           = 512 * 1024,
  72         },
  73         {
  74                 .name           = "bootenv",
  75                 .offset         = MTDPART_OFS_APPEND,
  76                 .size           = 512 * 1024,
  77         },
  78         {
  79                 .name           = "kernel_ro",
  80                 .offset         = MTDPART_OFS_APPEND,
  81                 .size           = 8 * 1024 * 1024,
  82                 .mask_flags     = MTD_WRITEABLE,
  83         },
  84         {
  85                 .name           = "kernel",
  86                 .offset         = MTDPART_OFS_APPEND,
  87                 .size           = 8 * 1024 * 1024,
  88         },
  89         {
  90                 .name           = "data",
  91                 .offset         = MTDPART_OFS_APPEND,
  92                 .size           = MTDPART_SIZ_FULL,
  93         },
  94 };
  95
  96 static struct physmap_flash_data nor_flash_data = {
  97         .width          = 2,
  98         .parts          = nor_flash_partitions,
  99         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
 100 };
 101
 102 static struct resource nor_flash_resources[] = {
 103         [0]     = {
 104                 .start  = 0x00000000,
 105                 .end    = 0x08000000 - 1,
 106                 .flags  = IORESOURCE_MEM,
 107         }
 108 };
 109
 110 static struct platform_device nor_flash_device = {
 111         .name           = "physmap-flash",
 112         .dev            = {
 113                 .platform_data  = &nor_flash_data,
 114         },
 115         .num_resources  = ARRAY_SIZE(nor_flash_resources),
 116         .resource       = nor_flash_resources,
 117 };
 118
 119 /* USBHS */
 120 static void usb_host_port_power(int port, int power)
 121 {
 122         if (!power) /* only power-on supported for now */
 123                 return;
 124
 125         /* set VBOUT/PWEN and EXTLP0 in DVSTCTR */
 126         __raw_writew(__raw_readw(0xe6890008) | 0x600, 0xe6890008);
 127 }
 128
 129 static struct r8a66597_platdata usb_host_data = {
 130         .on_chip = 1,
 131         .port_power = usb_host_port_power,
 132 };
 133
 134 static struct resource usb_host_resources[] = {
 135         [0] = {
 136                 .name   = "USBHS",
 137                 .start  = 0xe6890000,
 138                 .end    = 0xe68900e5,
 139                 .flags  = IORESOURCE_MEM,
 140         },
 141         [1] = {
 142                 .start  = evt2irq(0x0a20), /* USBHS_USHI0 */
 143                 .flags  = IORESOURCE_IRQ,
 144         },
 145 };
 146
 147 static struct platform_device usb_host_device = {
 148         .name           = "r8a66597_hcd",
 149         .id             = 0,
 150         .dev = {
 151                 .platform_data          = &usb_host_data,
 152                 .dma_mask               = NULL,
 153                 .coherent_dma_mask      = 0xffffffff,
 154         },
 155         .num_resources  = ARRAY_SIZE(usb_host_resources),
 156         .resource       = usb_host_resources,
 157 };
 158
 159 /* KEYSC */
 160 static struct sh_keysc_info keysc_info = {
 161         .mode           = SH_KEYSC_MODE_5,
 162         .scan_timing    = 3,
 163         .delay          = 100,
 164         .keycodes = {
 165                 KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F,
 166                 KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L,
 167                 KEY_M, KEY_N, KEY_U, KEY_P, KEY_Q, KEY_R,
 168                 KEY_S, KEY_T, KEY_U, KEY_V, KEY_W, KEY_X,
 169                 KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP, KEY_WAKEUP, KEY_COFFEE,
 170                 KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5,
 171                 KEY_6, KEY_7, KEY_8, KEY_9, KEY_STOP, KEY_COMPUTER,
 172         },
 173 };
 174
 175 static struct resource keysc_resources[] = {
 176         [0] = {
 177                 .name   = "KEYSC",
 178                 .start  = 0xe61b0000,
 179                 .end    = 0xe61b000f,
 180                 .flags  = IORESOURCE_MEM,
 181         },
 182         [1] = {
 183                 .start  = evt2irq(0x0be0), /* KEYSC_KEY */
 184                 .flags  = IORESOURCE_IRQ,
 185         },
 186 };
 187
 188 static struct platform_device keysc_device = {
 189         .name           = "sh_keysc",
 190         .id             = 0, /* keysc0 clock */
 191         .num_resources  = ARRAY_SIZE(keysc_resources),
 192         .resource       = keysc_resources,
 193         .dev    = {
 194                 .platform_data  = &keysc_info,
 195         },
 196 };
 197
 198 /* SDHI */
 199 static struct resource sdhi0_resources[] = {
 200         [0] = {
 201                 .name   = "SDHI0",
 202                 .start  = 0xe6d50000,
 203                 .end    = 0xe6d501ff,
 204                 .flags  = IORESOURCE_MEM,
 205         },
 206         [1] = {
 207                 .start  = evt2irq(0x0e00), /* SDHI0 */
 208                 .flags  = IORESOURCE_IRQ,
 209         },
 210 };
 211
 212 static struct platform_device sdhi0_device = {
 213         .name           = "sh_mobile_sdhi",
 214         .num_resources  = ARRAY_SIZE(sdhi0_resources),
 215         .resource       = sdhi0_resources,
 216         .id             = 0,
 217 };
 218
 219 static struct resource sdhi1_resources[] = {
 220         [0] = {
 221                 .name   = "SDHI1",
 222                 .start  = 0xe6d60000,
 223                 .end    = 0xe6d601ff,
 224                 .flags  = IORESOURCE_MEM,
 225         },
 226         [1] = {
 227                 .start  = evt2irq(0x0e80), /* SDHI1 */
 228                 .flags  = IORESOURCE_IRQ,
 229         },
 230 };
 231
 232 static struct platform_device sdhi1_device = {
 233         .name           = "sh_mobile_sdhi",
 234         .num_resources  = ARRAY_SIZE(sdhi1_resources),
 235         .resource       = sdhi1_resources,
 236         .id             = 1,
 237 };
 238
 239 static struct platform_device *g4evm_devices[] __initdata = {
 240         &nor_flash_device,
 241         &usb_host_device,
 242         &keysc_device,
 243         &sdhi0_device,
 244         &sdhi1_device,
 245 };
 246
 247 static struct map_desc g4evm_io_desc[] __initdata = {
 248         /* create a 1:1 entity map for 0xe6xxxxxx
 249          * used by CPGA, INTC and PFC.
 250          */
 251         {
 252                 .virtual        = 0xe6000000,
 253                 .pfn            = __phys_to_pfn(0xe6000000),
 254                 .length         = 256 << 20,
 255                 .type           = MT_DEVICE_NONSHARED
 256         },
 257 };
 258
 259 static void __init g4evm_map_io(void)
 260 {
 261         iotable_init(g4evm_io_desc, ARRAY_SIZE(g4evm_io_desc));
 262
 263         /* setup early devices and console here as well */
 264         sh7377_add_early_devices();
 265         shmobile_setup_console();
 266 }
 267
 268 #define GPIO_SDHID0_D0  0xe60520fc
 269 #define GPIO_SDHID0_D1  0xe60520fd
 270 #define GPIO_SDHID0_D2  0xe60520fe
 271 #define GPIO_SDHID0_D3  0xe60520ff
 272 #define GPIO_SDHICMD0   0xe6052100
 273
 274 #define GPIO_SDHID1_D0  0xe6052103
 275 #define GPIO_SDHID1_D1  0xe6052104
 276 #define GPIO_SDHID1_D2  0xe6052105
 277 #define GPIO_SDHID1_D3  0xe6052106
 278 #define GPIO_SDHICMD1   0xe6052107
 279
 280 /*
 281  * FIXME !!
 282  *
 283  * gpio_pull_up is quick_hack.
 284  *
 285  * current gpio frame work doesn't have
 286  * the method to control only pull up/down/free.
 287  * this function should be replaced by correct gpio function
 288  */
 289 static void __init gpio_pull_up(u32 addr)
 290 {
 291         u8 data = __raw_readb(addr);
 292
 293         data &= 0x0F;
 294         data |= 0xC0;
 295         __raw_writeb(data, addr);
 296 }
 297
 298 static void __init g4evm_init(void)
 299 {
 300         sh7377_pinmux_init();
 301
 302         /* Lit DS14 LED */
 303         gpio_request(GPIO_PORT109, NULL);
 304         gpio_direction_output(GPIO_PORT109, 1);
 305         gpio_export(GPIO_PORT109, 1);
 306
 307         /* Lit DS15 LED */
 308         gpio_request(GPIO_PORT110, NULL);
 309         gpio_direction_output(GPIO_PORT110, 1);
 310         gpio_export(GPIO_PORT110, 1);
 311
 312         /* Lit DS16 LED */
 313         gpio_request(GPIO_PORT112, NULL);
 314         gpio_direction_output(GPIO_PORT112, 1);
 315         gpio_export(GPIO_PORT112, 1);
 316
 317         /* Lit DS17 LED */
 318         gpio_request(GPIO_PORT113, NULL);
 319         gpio_direction_output(GPIO_PORT113, 1);
 320         gpio_export(GPIO_PORT113, 1);
 321
 322         /* USBHS */
 323         gpio_request(GPIO_FN_VBUS_0, NULL);
 324         gpio_request(GPIO_FN_PWEN, NULL);
 325         gpio_request(GPIO_FN_OVCN, NULL);
 326         gpio_request(GPIO_FN_OVCN2, NULL);
 327         gpio_request(GPIO_FN_EXTLP, NULL);
 328         gpio_request(GPIO_FN_IDIN, NULL);
 329
 330         /* setup USB phy */
 331         __raw_writew(0x0200, 0xe605810a);       /* USBCR1 */
 332         __raw_writew(0x00e0, 0xe60581c0);       /* CPFCH */
 333         __raw_writew(0x6010, 0xe60581c6);       /* CGPOSR */
 334         __raw_writew(0x8a0a, 0xe605810c);       /* USBCR2 */
 335
 336         /* KEYSC @ CN31 */
 337         gpio_request(GPIO_FN_PORT60_KEYOUT5, NULL);
 338         gpio_request(GPIO_FN_PORT61_KEYOUT4, NULL);
 339         gpio_request(GPIO_FN_PORT62_KEYOUT3, NULL);
 340         gpio_request(GPIO_FN_PORT63_KEYOUT2, NULL);
 341         gpio_request(GPIO_FN_PORT64_KEYOUT1, NULL);
 342         gpio_request(GPIO_FN_PORT65_KEYOUT0, NULL);
 343         gpio_request(GPIO_FN_PORT66_KEYIN0_PU, NULL);
 344         gpio_request(GPIO_FN_PORT67_KEYIN1_PU, NULL);
 345         gpio_request(GPIO_FN_PORT68_KEYIN2_PU, NULL);
 346         gpio_request(GPIO_FN_PORT69_KEYIN3_PU, NULL);
 347         gpio_request(GPIO_FN_PORT70_KEYIN4_PU, NULL);
 348         gpio_request(GPIO_FN_PORT71_KEYIN5_PU, NULL);
 349         gpio_request(GPIO_FN_PORT72_KEYIN6_PU, NULL);
 350
 351         /* SDHI0 */
 352         gpio_request(GPIO_FN_SDHICLK0, NULL);
 353         gpio_request(GPIO_FN_SDHICD0, NULL);
 354         gpio_request(GPIO_FN_SDHID0_0, NULL);
 355         gpio_request(GPIO_FN_SDHID0_1, NULL);
 356         gpio_request(GPIO_FN_SDHID0_2, NULL);
 357         gpio_request(GPIO_FN_SDHID0_3, NULL);
 358         gpio_request(GPIO_FN_SDHICMD0, NULL);
 359         gpio_request(GPIO_FN_SDHIWP0, NULL);
 360         gpio_pull_up(GPIO_SDHID0_D0);
 361         gpio_pull_up(GPIO_SDHID0_D1);
 362         gpio_pull_up(GPIO_SDHID0_D2);
 363         gpio_pull_up(GPIO_SDHID0_D3);
 364         gpio_pull_up(GPIO_SDHICMD0);
 365
 366         /* SDHI1 */
 367         gpio_request(GPIO_FN_SDHICLK1, NULL);
 368         gpio_request(GPIO_FN_SDHID1_0, NULL);
 369         gpio_request(GPIO_FN_SDHID1_1, NULL);
 370         gpio_request(GPIO_FN_SDHID1_2, NULL);
 371         gpio_request(GPIO_FN_SDHID1_3, NULL);
 372         gpio_request(GPIO_FN_SDHICMD1, NULL);
 373         gpio_pull_up(GPIO_SDHID1_D0);
 374         gpio_pull_up(GPIO_SDHID1_D1);
 375         gpio_pull_up(GPIO_SDHID1_D2);
 376         gpio_pull_up(GPIO_SDHID1_D3);
 377         gpio_pull_up(GPIO_SDHICMD1);
 378
 379         sh7377_add_standard_devices();
 380
 381         platform_add_devices(g4evm_devices, ARRAY_SIZE(g4evm_devices));
 382 }
 383
 384 static void __init g4evm_timer_init(void)
 385 {
 386         sh7377_clock_init();
 387         shmobile_timer.init();
 388 }
 389
 390 static struct sys_timer g4evm_timer = {
 391         .init           = g4evm_timer_init,
 392 };
 393
 394 MACHINE_START(G4EVM, "g4evm")
 395         .map_io         = g4evm_map_io,
 396         .init_irq       = sh7377_init_irq,
 397         .init_machine   = g4evm_init,
 398         .timer          = &g4evm_timer,
 399 MACHINE_END