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/gpio.h>
  34 #include <mach/sh7377.h>
  35 #include <mach/common.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39
  40 static struct mtd_partition nor_flash_partitions[] = {
  41         {
  42                 .name           = "loader",
  43                 .offset         = 0x00000000,
  44                 .size           = 512 * 1024,
  45         },
  46         {
  47                 .name           = "bootenv",
  48                 .offset         = MTDPART_OFS_APPEND,
  49                 .size           = 512 * 1024,
  50         },
  51         {
  52                 .name           = "kernel_ro",
  53                 .offset         = MTDPART_OFS_APPEND,
  54                 .size           = 8 * 1024 * 1024,
  55                 .mask_flags     = MTD_WRITEABLE,
  56         },
  57         {
  58                 .name           = "kernel",
  59                 .offset         = MTDPART_OFS_APPEND,
  60                 .size           = 8 * 1024 * 1024,
  61         },
  62         {
  63                 .name           = "data",
  64                 .offset         = MTDPART_OFS_APPEND,
  65                 .size           = MTDPART_SIZ_FULL,
  66         },
  67 };
  68
  69 static struct physmap_flash_data nor_flash_data = {
  70         .width          = 2,
  71         .parts          = nor_flash_partitions,
  72         .nr_parts       = ARRAY_SIZE(nor_flash_partitions),
  73 };
  74
  75 static struct resource nor_flash_resources[] = {
  76         [0]     = {
  77                 .start  = 0x00000000,
  78                 .end    = 0x08000000 - 1,
  79                 .flags  = IORESOURCE_MEM,
  80         }
  81 };
  82
  83 static struct platform_device nor_flash_device = {
  84         .name           = "physmap-flash",
  85         .dev            = {
  86                 .platform_data  = &nor_flash_data,
  87         },
  88         .num_resources  = ARRAY_SIZE(nor_flash_resources),
  89         .resource       = nor_flash_resources,
  90 };
  91
  92 /* USBHS */
  93 void usb_host_port_power(int port, int power)
  94 {
  95         if (!power) /* only power-on supported for now */
  96                 return;
  97
  98         /* set VBOUT/PWEN and EXTLP0 in DVSTCTR */
  99         __raw_writew(__raw_readw(0xe6890008) | 0x600, 0xe6890008);
 100 }
 101
 102 static struct r8a66597_platdata usb_host_data = {
 103         .on_chip = 1,
 104         .port_power = usb_host_port_power,
 105 };
 106
 107 static struct resource usb_host_resources[] = {
 108         [0] = {
 109                 .name   = "USBHS",
 110                 .start  = 0xe6890000,
 111                 .end    = 0xe68900e5,
 112                 .flags  = IORESOURCE_MEM,
 113         },
 114         [1] = {
 115                 .start  = 65,
 116                 .end    = 65,
 117                 .flags  = IORESOURCE_IRQ,
 118         },
 119 };
 120
 121 static struct platform_device usb_host_device = {
 122         .name           = "r8a66597_hcd",
 123         .id             = 0,
 124         .dev = {
 125                 .platform_data          = &usb_host_data,
 126                 .dma_mask               = NULL,
 127                 .coherent_dma_mask      = 0xffffffff,
 128         },
 129         .num_resources  = ARRAY_SIZE(usb_host_resources),
 130         .resource       = usb_host_resources,
 131 };
 132
 133 /* KEYSC */
 134 static struct sh_keysc_info keysc_info = {
 135         .mode           = SH_KEYSC_MODE_5,
 136         .scan_timing    = 3,
 137         .delay          = 100,
 138         .keycodes = {
 139                 KEY_A, KEY_B, KEY_C, KEY_D, KEY_E, KEY_F,
 140                 KEY_G, KEY_H, KEY_I, KEY_J, KEY_K, KEY_L,
 141                 KEY_M, KEY_N, KEY_U, KEY_P, KEY_Q, KEY_R,
 142                 KEY_S, KEY_T, KEY_U, KEY_V, KEY_W, KEY_X,
 143                 KEY_Y, KEY_Z, KEY_HOME, KEY_SLEEP, KEY_WAKEUP, KEY_COFFEE,
 144                 KEY_0, KEY_1, KEY_2, KEY_3, KEY_4, KEY_5,
 145                 KEY_6, KEY_7, KEY_8, KEY_9, KEY_STOP, KEY_COMPUTER,
 146         },
 147 };
 148
 149 static struct resource keysc_resources[] = {
 150         [0] = {
 151                 .name   = "KEYSC",
 152                 .start  = 0xe61b0000,
 153                 .end    = 0xe61b000f,
 154                 .flags  = IORESOURCE_MEM,
 155         },
 156         [1] = {
 157                 .start  = 79,
 158                 .flags  = IORESOURCE_IRQ,
 159         },
 160 };
 161
 162 static struct platform_device keysc_device = {
 163         .name           = "sh_keysc",
 164         .id             = 0, /* keysc0 clock */
 165         .num_resources  = ARRAY_SIZE(keysc_resources),
 166         .resource       = keysc_resources,
 167         .dev    = {
 168                 .platform_data  = &keysc_info,
 169         },
 170 };
 171
 172 static struct platform_device *g4evm_devices[] __initdata = {
 173         &nor_flash_device,
 174         &usb_host_device,
 175         &keysc_device,
 176 };
 177
 178 static struct map_desc g4evm_io_desc[] __initdata = {
 179         /* create a 1:1 entity map for 0xe6xxxxxx
 180          * used by CPGA, INTC and PFC.
 181          */
 182         {
 183                 .virtual        = 0xe6000000,
 184                 .pfn            = __phys_to_pfn(0xe6000000),
 185                 .length         = 256 << 20,
 186                 .type           = MT_DEVICE_NONSHARED
 187         },
 188 };
 189
 190 static void __init g4evm_map_io(void)
 191 {
 192         iotable_init(g4evm_io_desc, ARRAY_SIZE(g4evm_io_desc));
 193
 194         /* setup early devices, clocks and console here as well */
 195         sh7377_add_early_devices();
 196         sh7367_clock_init(); /* use g3 clocks for now */
 197         shmobile_setup_console();
 198 }
 199
 200 static void __init g4evm_init(void)
 201 {
 202         sh7377_pinmux_init();
 203
 204         /* Lit DS14 LED */
 205         gpio_request(GPIO_PORT109, NULL);
 206         gpio_direction_output(GPIO_PORT109, 1);
 207         gpio_export(GPIO_PORT109, 1);
 208
 209         /* Lit DS15 LED */
 210         gpio_request(GPIO_PORT110, NULL);
 211         gpio_direction_output(GPIO_PORT110, 1);
 212         gpio_export(GPIO_PORT110, 1);
 213
 214         /* Lit DS16 LED */
 215         gpio_request(GPIO_PORT112, NULL);
 216         gpio_direction_output(GPIO_PORT112, 1);
 217         gpio_export(GPIO_PORT112, 1);
 218
 219         /* Lit DS17 LED */
 220         gpio_request(GPIO_PORT113, NULL);
 221         gpio_direction_output(GPIO_PORT113, 1);
 222         gpio_export(GPIO_PORT113, 1);
 223
 224         /* USBHS */
 225         gpio_request(GPIO_FN_VBUS_0, NULL);
 226         gpio_request(GPIO_FN_PWEN, NULL);
 227         gpio_request(GPIO_FN_OVCN, NULL);
 228         gpio_request(GPIO_FN_OVCN2, NULL);
 229         gpio_request(GPIO_FN_EXTLP, NULL);
 230         gpio_request(GPIO_FN_IDIN, NULL);
 231
 232         /* enable clock in SMSTPCR3 */
 233         __raw_writel(__raw_readl(0xe615013c) & ~(1 << 22), 0xe615013c);
 234
 235         /* setup USB phy */
 236         __raw_writew(0x0200, 0xe605810a);       /* USBCR1 */
 237         __raw_writew(0x00e0, 0xe60581c0);       /* CPFCH */
 238         __raw_writew(0x6010, 0xe60581c6);       /* CGPOSR */
 239         __raw_writew(0x8a0a, 0xe605810c);       /* USBCR2 */
 240
 241         /* KEYSC @ CN31 */
 242         gpio_request(GPIO_FN_PORT60_KEYOUT5, NULL);
 243         gpio_request(GPIO_FN_PORT61_KEYOUT4, NULL);
 244         gpio_request(GPIO_FN_PORT62_KEYOUT3, NULL);
 245         gpio_request(GPIO_FN_PORT63_KEYOUT2, NULL);
 246         gpio_request(GPIO_FN_PORT64_KEYOUT1, NULL);
 247         gpio_request(GPIO_FN_PORT65_KEYOUT0, NULL);
 248         gpio_request(GPIO_FN_PORT66_KEYIN0_PU, NULL);
 249         gpio_request(GPIO_FN_PORT67_KEYIN1_PU, NULL);
 250         gpio_request(GPIO_FN_PORT68_KEYIN2_PU, NULL);
 251         gpio_request(GPIO_FN_PORT69_KEYIN3_PU, NULL);
 252         gpio_request(GPIO_FN_PORT70_KEYIN4_PU, NULL);
 253         gpio_request(GPIO_FN_PORT71_KEYIN5_PU, NULL);
 254         gpio_request(GPIO_FN_PORT72_KEYIN6_PU, NULL);
 255
 256         sh7377_add_standard_devices();
 257
 258         platform_add_devices(g4evm_devices, ARRAY_SIZE(g4evm_devices));
 259 }
 260
 261 MACHINE_START(G4EVM, "g4evm")
 262         .phys_io        = 0xe6000000,
 263         .io_pg_offst    = ((0xe6000000) >> 18) & 0xfffc,
 264         .map_io         = g4evm_map_io,
 265         .init_irq       = sh7377_init_irq,
 266         .init_machine   = g4evm_init,
 267         .timer          = &shmobile_timer,
 268 MACHINE_END