arch/arm/mach-omap1/board-perseus2.c

   1 /*
   2  * linux/arch/arm/mach-omap1/board-perseus2.c
   3  *
   4  * Modified from board-generic.c
   5  *
   6  * Original OMAP730 support by Jean Pihet <j-pihet@ti.com>
   7  * Updated for 2.6 by Kevin Hilman <kjh@hilman.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  */
  13
  14 #include <linux/kernel.h>
  15 #include <linux/init.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/delay.h>
  18 #include <linux/mtd/mtd.h>
  19 #include <linux/mtd/nand.h>
  20 #include <linux/mtd/partitions.h>
  21 #include <linux/input.h>
  22
  23 #include <mach/hardware.h>
  24 #include <asm/mach-types.h>
  25 #include <asm/mach/arch.h>
  26 #include <asm/mach/flash.h>
  27 #include <asm/mach/map.h>
  28
  29 #include <plat/tc.h>
  30 #include <mach/gpio.h>
  31 #include <plat/mux.h>
  32 #include <plat/fpga.h>
  33 #include <plat/nand.h>
  34 #include <plat/keypad.h>
  35 #include <plat/common.h>
  36 #include <plat/board.h>
  37
  38 static int p2_keymap[] = {
  39         KEY(0,0,KEY_UP),
  40         KEY(0,1,KEY_RIGHT),
  41         KEY(0,2,KEY_LEFT),
  42         KEY(0,3,KEY_DOWN),
  43         KEY(0,4,KEY_ENTER),
  44         KEY(1,0,KEY_F10),
  45         KEY(1,1,KEY_SEND),
  46         KEY(1,2,KEY_END),
  47         KEY(1,3,KEY_VOLUMEDOWN),
  48         KEY(1,4,KEY_VOLUMEUP),
  49         KEY(1,5,KEY_RECORD),
  50         KEY(2,0,KEY_F9),
  51         KEY(2,1,KEY_3),
  52         KEY(2,2,KEY_6),
  53         KEY(2,3,KEY_9),
  54         KEY(2,4,KEY_KPDOT),
  55         KEY(3,0,KEY_BACK),
  56         KEY(3,1,KEY_2),
  57         KEY(3,2,KEY_5),
  58         KEY(3,3,KEY_8),
  59         KEY(3,4,KEY_0),
  60         KEY(3,5,KEY_KPSLASH),
  61         KEY(4,0,KEY_HOME),
  62         KEY(4,1,KEY_1),
  63         KEY(4,2,KEY_4),
  64         KEY(4,3,KEY_7),
  65         KEY(4,4,KEY_KPASTERISK),
  66         KEY(4,5,KEY_POWER),
  67         0
  68 };
  69
  70 static struct resource smc91x_resources[] = {
  71         [0] = {
  72                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
  73                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
  74                 .flags  = IORESOURCE_MEM,
  75         },
  76         [1] = {
  77                 .start  = INT_7XX_MPU_EXT_NIRQ,
  78                 .end    = 0,
  79                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  80         },
  81 };
  82
  83 static struct mtd_partition nor_partitions[] = {
  84         /* bootloader (U-Boot, etc) in first sector */
  85         {
  86               .name             = "bootloader",
  87               .offset           = 0,
  88               .size             = SZ_128K,
  89               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  90         },
  91         /* bootloader params in the next sector */
  92         {
  93               .name             = "params",
  94               .offset           = MTDPART_OFS_APPEND,
  95               .size             = SZ_128K,
  96               .mask_flags       = 0,
  97         },
  98         /* kernel */
  99         {
 100               .name             = "kernel",
 101               .offset           = MTDPART_OFS_APPEND,
 102               .size             = SZ_2M,
 103               .mask_flags       = 0
 104         },
 105         /* rest of flash is a file system */
 106         {
 107               .name             = "rootfs",
 108               .offset           = MTDPART_OFS_APPEND,
 109               .size             = MTDPART_SIZ_FULL,
 110               .mask_flags       = 0
 111         },
 112 };
 113
 114 static struct flash_platform_data nor_data = {
 115         .map_name       = "cfi_probe",
 116         .width          = 2,
 117         .parts          = nor_partitions,
 118         .nr_parts       = ARRAY_SIZE(nor_partitions),
 119 };
 120
 121 static struct resource nor_resource = {
 122         .start          = OMAP_CS0_PHYS,
 123         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
 124         .flags          = IORESOURCE_MEM,
 125 };
 126
 127 static struct platform_device nor_device = {
 128         .name           = "omapflash",
 129         .id             = 0,
 130         .dev            = {
 131                 .platform_data  = &nor_data,
 132         },
 133         .num_resources  = 1,
 134         .resource       = &nor_resource,
 135 };
 136
 137 static struct omap_nand_platform_data nand_data = {
 138         .options        = NAND_SAMSUNG_LP_OPTIONS,
 139 };
 140
 141 static struct resource nand_resource = {
 142         .start          = OMAP_CS3_PHYS,
 143         .end            = OMAP_CS3_PHYS + SZ_4K - 1,
 144         .flags          = IORESOURCE_MEM,
 145 };
 146
 147 static struct platform_device nand_device = {
 148         .name           = "omapnand",
 149         .id             = 0,
 150         .dev            = {
 151                 .platform_data  = &nand_data,
 152         },
 153         .num_resources  = 1,
 154         .resource       = &nand_resource,
 155 };
 156
 157 static struct platform_device smc91x_device = {
 158         .name           = "smc91x",
 159         .id             = 0,
 160         .num_resources  = ARRAY_SIZE(smc91x_resources),
 161         .resource       = smc91x_resources,
 162 };
 163
 164 static struct resource kp_resources[] = {
 165         [0] = {
 166                 .start  = INT_7XX_MPUIO_KEYPAD,
 167                 .end    = INT_7XX_MPUIO_KEYPAD,
 168                 .flags  = IORESOURCE_IRQ,
 169         },
 170 };
 171
 172 static struct omap_kp_platform_data kp_data = {
 173         .rows           = 8,
 174         .cols           = 8,
 175         .keymap         = p2_keymap,
 176         .keymapsize     = ARRAY_SIZE(p2_keymap),
 177         .delay          = 4,
 178         .dbounce        = 1,
 179 };
 180
 181 static struct platform_device kp_device = {
 182         .name           = "omap-keypad",
 183         .id             = -1,
 184         .dev            = {
 185                 .platform_data = &kp_data,
 186         },
 187         .num_resources  = ARRAY_SIZE(kp_resources),
 188         .resource       = kp_resources,
 189 };
 190
 191 static struct platform_device lcd_device = {
 192         .name           = "lcd_p2",
 193         .id             = -1,
 194 };
 195
 196 static struct platform_device *devices[] __initdata = {
 197         &nor_device,
 198         &nand_device,
 199         &smc91x_device,
 200         &kp_device,
 201         &lcd_device,
 202 };
 203
 204 #define P2_NAND_RB_GPIO_PIN     62
 205
 206 static int nand_dev_ready(struct omap_nand_platform_data *data)
 207 {
 208         return gpio_get_value(P2_NAND_RB_GPIO_PIN);
 209 }
 210
 211 static struct omap_lcd_config perseus2_lcd_config __initdata = {
 212         .ctrl_name      = "internal",
 213 };
 214
 215 static struct omap_board_config_kernel perseus2_config[] __initdata = {
 216         { OMAP_TAG_LCD,         &perseus2_lcd_config },
 217 };
 218
 219 static void __init omap_perseus2_init(void)
 220 {
 221         if (gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0)
 222                 BUG();
 223         nand_data.dev_ready = nand_dev_ready;
 224
 225         omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
 226         omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
 227
 228         platform_add_devices(devices, ARRAY_SIZE(devices));
 229
 230         omap_board_config = perseus2_config;
 231         omap_board_config_size = ARRAY_SIZE(perseus2_config);
 232         omap_serial_init();
 233         omap_register_i2c_bus(1, 100, NULL, 0);
 234 }
 235
 236 static void __init perseus2_init_smc91x(void)
 237 {
 238         fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
 239         mdelay(50);
 240         fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
 241                    H2P2_DBG_FPGA_LAN_RESET);
 242         mdelay(50);
 243 }
 244
 245 static void __init omap_perseus2_init_irq(void)
 246 {
 247         omap1_init_common_hw();
 248         omap_init_irq();
 249         omap_gpio_init();
 250         perseus2_init_smc91x();
 251 }
 252 /* Only FPGA needs to be mapped here. All others are done with ioremap */
 253 static struct map_desc omap_perseus2_io_desc[] __initdata = {
 254         {
 255                 .virtual        = H2P2_DBG_FPGA_BASE,
 256                 .pfn            = __phys_to_pfn(H2P2_DBG_FPGA_START),
 257                 .length         = H2P2_DBG_FPGA_SIZE,
 258                 .type           = MT_DEVICE
 259         }
 260 };
 261
 262 static void __init omap_perseus2_map_io(void)
 263 {
 264         omap1_map_common_io();
 265         iotable_init(omap_perseus2_io_desc,
 266                      ARRAY_SIZE(omap_perseus2_io_desc));
 267
 268         /* Early, board-dependent init */
 269
 270         /*
 271          * Hold GSM Reset until needed
 272          */
 273         omap_writew(omap_readw(OMAP7XX_DSP_M_CTL) & ~1, OMAP7XX_DSP_M_CTL);
 274
 275         /*
 276          * UARTs -> done automagically by 8250 driver
 277          */
 278
 279         /*
 280          * CSx timings, GPIO Mux ... setup
 281          */
 282
 283         /* Flash: CS0 timings setup */
 284         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_0);
 285         omap_writel(0x00000088, OMAP7XX_FLASH_ACFG_0);
 286
 287         /*
 288          * Ethernet support through the debug board
 289          * CS1 timings setup
 290          */
 291         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_1);
 292         omap_writel(0x00000000, OMAP7XX_FLASH_ACFG_1);
 293
 294         /*
 295          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 296          * It is used as the Ethernet controller interrupt
 297          */
 298         omap_writel(omap_readl(OMAP7XX_IO_CONF_9) & 0x1FFFFFFF, OMAP7XX_IO_CONF_9);
 299 }
 300
 301 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 302         /* Maintainer: Kevin Hilman <kjh@hilman.org> */
 303         .phys_io        = 0xfff00000,
 304         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 305         .boot_params    = 0x10000100,
 306         .map_io         = omap_perseus2_map_io,
 307         .init_irq       = omap_perseus2_init_irq,
 308         .init_machine   = omap_perseus2_init,
 309         .timer          = &omap_timer,
 310 MACHINE_END