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