release/src-rt-6.x.4708/linux/linux-2.6.36/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/mtd/physmap.h>
  22 #include <linux/input.h>
  23 #include <linux/smc91x.h>
  24
  25 #include <mach/hardware.h>
  26 #include <asm/mach-types.h>
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/map.h>
  29
  30 #include <plat/tc.h>
  31 #include <mach/gpio.h>
  32 #include <plat/mux.h>
  33 #include <plat/fpga.h>
  34 #include <plat/flash.h>
  35 #include <plat/keypad.h>
  36 #include <plat/common.h>
  37 #include <plat/board.h>
  38
  39 static int p2_keymap[] = {
  40         KEY(0,0,KEY_UP),
  41         KEY(0,1,KEY_RIGHT),
  42         KEY(0,2,KEY_LEFT),
  43         KEY(0,3,KEY_DOWN),
  44         KEY(0,4,KEY_ENTER),
  45         KEY(1,0,KEY_F10),
  46         KEY(1,1,KEY_SEND),
  47         KEY(1,2,KEY_END),
  48         KEY(1,3,KEY_VOLUMEDOWN),
  49         KEY(1,4,KEY_VOLUMEUP),
  50         KEY(1,5,KEY_RECORD),
  51         KEY(2,0,KEY_F9),
  52         KEY(2,1,KEY_3),
  53         KEY(2,2,KEY_6),
  54         KEY(2,3,KEY_9),
  55         KEY(2,4,KEY_KPDOT),
  56         KEY(3,0,KEY_BACK),
  57         KEY(3,1,KEY_2),
  58         KEY(3,2,KEY_5),
  59         KEY(3,3,KEY_8),
  60         KEY(3,4,KEY_0),
  61         KEY(3,5,KEY_KPSLASH),
  62         KEY(4,0,KEY_HOME),
  63         KEY(4,1,KEY_1),
  64         KEY(4,2,KEY_4),
  65         KEY(4,3,KEY_7),
  66         KEY(4,4,KEY_KPASTERISK),
  67         KEY(4,5,KEY_POWER),
  68         0
  69 };
  70
  71 static struct smc91x_platdata smc91x_info = {
  72         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
  73         .leda   = RPC_LED_100_10,
  74         .ledb   = RPC_LED_TX_RX,
  75 };
  76
  77 static struct resource smc91x_resources[] = {
  78         [0] = {
  79                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
  80                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
  81                 .flags  = IORESOURCE_MEM,
  82         },
  83         [1] = {
  84                 .start  = INT_7XX_MPU_EXT_NIRQ,
  85                 .end    = 0,
  86                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  87         },
  88 };
  89
  90 static struct mtd_partition nor_partitions[] = {
  91         /* bootloader (U-Boot, etc) in first sector */
  92         {
  93               .name             = "bootloader",
  94               .offset           = 0,
  95               .size             = SZ_128K,
  96               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  97         },
  98         /* bootloader params in the next sector */
  99         {
 100               .name             = "params",
 101               .offset           = MTDPART_OFS_APPEND,
 102               .size             = SZ_128K,
 103               .mask_flags       = 0,
 104         },
 105         /* kernel */
 106         {
 107               .name             = "kernel",
 108               .offset           = MTDPART_OFS_APPEND,
 109               .size             = SZ_2M,
 110               .mask_flags       = 0
 111         },
 112         /* rest of flash is a file system */
 113         {
 114               .name             = "rootfs",
 115               .offset           = MTDPART_OFS_APPEND,
 116               .size             = MTDPART_SIZ_FULL,
 117               .mask_flags       = 0
 118         },
 119 };
 120
 121 static struct physmap_flash_data nor_data = {
 122         .width          = 2,
 123         .set_vpp        = omap1_set_vpp,
 124         .parts          = nor_partitions,
 125         .nr_parts       = ARRAY_SIZE(nor_partitions),
 126 };
 127
 128 static struct resource nor_resource = {
 129         .start          = OMAP_CS0_PHYS,
 130         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
 131         .flags          = IORESOURCE_MEM,
 132 };
 133
 134 static struct platform_device nor_device = {
 135         .name           = "physmap-flash",
 136         .id             = 0,
 137         .dev            = {
 138                 .platform_data  = &nor_data,
 139         },
 140         .num_resources  = 1,
 141         .resource       = &nor_resource,
 142 };
 143
 144 static void nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 145 {
 146         struct nand_chip *this = mtd->priv;
 147         unsigned long mask;
 148
 149         if (cmd == NAND_CMD_NONE)
 150                 return;
 151
 152         mask = (ctrl & NAND_CLE) ? 0x02 : 0;
 153         if (ctrl & NAND_ALE)
 154                 mask |= 0x04;
 155         writeb(cmd, (unsigned long)this->IO_ADDR_W | mask);
 156 }
 157
 158 #define P2_NAND_RB_GPIO_PIN     62
 159
 160 static int nand_dev_ready(struct mtd_info *mtd)
 161 {
 162         return gpio_get_value(P2_NAND_RB_GPIO_PIN);
 163 }
 164
 165 static const char *part_probes[] = { "cmdlinepart", NULL };
 166
 167 static struct platform_nand_data nand_data = {
 168         .chip   = {
 169                 .nr_chips               = 1,
 170                 .chip_offset            = 0,
 171                 .options                = NAND_SAMSUNG_LP_OPTIONS,
 172                 .part_probe_types       = part_probes,
 173         },
 174         .ctrl   = {
 175                 .cmd_ctrl       = nand_cmd_ctl,
 176                 .dev_ready      = nand_dev_ready,
 177         },
 178 };
 179
 180 static struct resource nand_resource = {
 181         .start          = OMAP_CS3_PHYS,
 182         .end            = OMAP_CS3_PHYS + SZ_4K - 1,
 183         .flags          = IORESOURCE_MEM,
 184 };
 185
 186 static struct platform_device nand_device = {
 187         .name           = "gen_nand",
 188         .id             = 0,
 189         .dev            = {
 190                 .platform_data  = &nand_data,
 191         },
 192         .num_resources  = 1,
 193         .resource       = &nand_resource,
 194 };
 195
 196 static struct platform_device smc91x_device = {
 197         .name           = "smc91x",
 198         .id             = 0,
 199         .dev    = {
 200                 .platform_data  = &smc91x_info,
 201         },
 202         .num_resources  = ARRAY_SIZE(smc91x_resources),
 203         .resource       = smc91x_resources,
 204 };
 205
 206 static struct resource kp_resources[] = {
 207         [0] = {
 208                 .start  = INT_7XX_MPUIO_KEYPAD,
 209                 .end    = INT_7XX_MPUIO_KEYPAD,
 210                 .flags  = IORESOURCE_IRQ,
 211         },
 212 };
 213
 214 static struct omap_kp_platform_data kp_data = {
 215         .rows           = 8,
 216         .cols           = 8,
 217         .keymap         = p2_keymap,
 218         .keymapsize     = ARRAY_SIZE(p2_keymap),
 219         .delay          = 4,
 220         .dbounce        = 1,
 221 };
 222
 223 static struct platform_device kp_device = {
 224         .name           = "omap-keypad",
 225         .id             = -1,
 226         .dev            = {
 227                 .platform_data = &kp_data,
 228         },
 229         .num_resources  = ARRAY_SIZE(kp_resources),
 230         .resource       = kp_resources,
 231 };
 232
 233 static struct platform_device lcd_device = {
 234         .name           = "lcd_p2",
 235         .id             = -1,
 236 };
 237
 238 static struct platform_device *devices[] __initdata = {
 239         &nor_device,
 240         &nand_device,
 241         &smc91x_device,
 242         &kp_device,
 243         &lcd_device,
 244 };
 245
 246 static struct omap_lcd_config perseus2_lcd_config __initdata = {
 247         .ctrl_name      = "internal",
 248 };
 249
 250 static struct omap_board_config_kernel perseus2_config[] __initdata = {
 251         { OMAP_TAG_LCD,         &perseus2_lcd_config },
 252 };
 253
 254 static void __init omap_perseus2_init(void)
 255 {
 256         if (gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0)
 257                 BUG();
 258         gpio_direction_input(P2_NAND_RB_GPIO_PIN);
 259
 260         omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
 261         omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
 262
 263         /* Mux pins for keypad */
 264         omap_cfg_reg(E2_7XX_KBR0);
 265         omap_cfg_reg(J7_7XX_KBR1);
 266         omap_cfg_reg(E1_7XX_KBR2);
 267         omap_cfg_reg(F3_7XX_KBR3);
 268         omap_cfg_reg(D2_7XX_KBR4);
 269         omap_cfg_reg(C2_7XX_KBC0);
 270         omap_cfg_reg(D3_7XX_KBC1);
 271         omap_cfg_reg(E4_7XX_KBC2);
 272         omap_cfg_reg(F4_7XX_KBC3);
 273         omap_cfg_reg(E3_7XX_KBC4);
 274
 275         platform_add_devices(devices, ARRAY_SIZE(devices));
 276
 277         omap_board_config = perseus2_config;
 278         omap_board_config_size = ARRAY_SIZE(perseus2_config);
 279         omap_serial_init();
 280         omap_register_i2c_bus(1, 100, NULL, 0);
 281 }
 282
 283 static void __init perseus2_init_smc91x(void)
 284 {
 285         fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
 286         mdelay(50);
 287         fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
 288                    H2P2_DBG_FPGA_LAN_RESET);
 289         mdelay(50);
 290 }
 291
 292 static void __init omap_perseus2_init_irq(void)
 293 {
 294         omap1_init_common_hw();
 295         omap_init_irq();
 296         omap_gpio_init();
 297         perseus2_init_smc91x();
 298 }
 299 /* Only FPGA needs to be mapped here. All others are done with ioremap */
 300 static struct map_desc omap_perseus2_io_desc[] __initdata = {
 301         {
 302                 .virtual        = H2P2_DBG_FPGA_BASE,
 303                 .pfn            = __phys_to_pfn(H2P2_DBG_FPGA_START),
 304                 .length         = H2P2_DBG_FPGA_SIZE,
 305                 .type           = MT_DEVICE
 306         }
 307 };
 308
 309 static void __init omap_perseus2_map_io(void)
 310 {
 311         omap1_map_common_io();
 312         iotable_init(omap_perseus2_io_desc,
 313                      ARRAY_SIZE(omap_perseus2_io_desc));
 314
 315         /* Early, board-dependent init */
 316
 317         /*
 318          * Hold GSM Reset until needed
 319          */
 320         omap_writew(omap_readw(OMAP7XX_DSP_M_CTL) & ~1, OMAP7XX_DSP_M_CTL);
 321
 322         /*
 323          * UARTs -> done automagically by 8250 driver
 324          */
 325
 326         /*
 327          * CSx timings, GPIO Mux ... setup
 328          */
 329
 330         /* Flash: CS0 timings setup */
 331         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_0);
 332         omap_writel(0x00000088, OMAP7XX_FLASH_ACFG_0);
 333
 334         /*
 335          * Ethernet support through the debug board
 336          * CS1 timings setup
 337          */
 338         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_1);
 339         omap_writel(0x00000000, OMAP7XX_FLASH_ACFG_1);
 340
 341         /*
 342          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 343          * It is used as the Ethernet controller interrupt
 344          */
 345         omap_writel(omap_readl(OMAP7XX_IO_CONF_9) & 0x1FFFFFFF, OMAP7XX_IO_CONF_9);
 346 }
 347
 348 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 349         /* Maintainer: Kevin Hilman <kjh@hilman.org> */
 350         .phys_io        = 0xfff00000,
 351         .io_pg_offst    = ((0xfef00000) >> 18) & 0xfffc,
 352         .boot_params    = 0x10000100,
 353         .map_io         = omap_perseus2_map_io,
 354         .reserve        = omap_reserve,
 355         .init_irq       = omap_perseus2_init_irq,
 356         .init_machine   = omap_perseus2_init,
 357         .timer          = &omap_timer,
 358 MACHINE_END