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 #include <linux/gpio.h>
  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 <plat/mux.h>
  32 #include <plat/fpga.h>
  33 #include <plat/flash.h>
  34 #include <plat/keypad.h>
  35 #include <plat/common.h>
  36 #include <plat/board.h>
  37
  38 static const unsigned int p2_keymap[] = {
  39         KEY(0, 0, KEY_UP),
  40         KEY(1, 0, KEY_RIGHT),
  41         KEY(2, 0, KEY_LEFT),
  42         KEY(3, 0, KEY_DOWN),
  43         KEY(4, 0, KEY_ENTER),
  44         KEY(0, 1, KEY_F10),
  45         KEY(1, 1, KEY_SEND),
  46         KEY(2, 1, KEY_END),
  47         KEY(3, 1, KEY_VOLUMEDOWN),
  48         KEY(4, 1, KEY_VOLUMEUP),
  49         KEY(5, 1, KEY_RECORD),
  50         KEY(0, 2, KEY_F9),
  51         KEY(1, 2, KEY_3),
  52         KEY(2, 2, KEY_6),
  53         KEY(3, 2, KEY_9),
  54         KEY(4, 2, KEY_KPDOT),
  55         KEY(0, 3, KEY_BACK),
  56         KEY(1, 3, KEY_2),
  57         KEY(2, 3, KEY_5),
  58         KEY(3, 3, KEY_8),
  59         KEY(4, 3, KEY_0),
  60         KEY(5, 3, KEY_KPSLASH),
  61         KEY(0, 4, KEY_HOME),
  62         KEY(1, 4, KEY_1),
  63         KEY(2, 4, KEY_4),
  64         KEY(3, 4, KEY_7),
  65         KEY(4, 4, KEY_KPASTERISK),
  66         KEY(5, 4, KEY_POWER),
  67 };
  68
  69 static struct smc91x_platdata smc91x_info = {
  70         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
  71         .leda   = RPC_LED_100_10,
  72         .ledb   = RPC_LED_TX_RX,
  73 };
  74
  75 static struct resource smc91x_resources[] = {
  76         [0] = {
  77                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
  78                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
  79                 .flags  = IORESOURCE_MEM,
  80         },
  81         [1] = {
  82                 .start  = INT_7XX_MPU_EXT_NIRQ,
  83                 .end    = 0,
  84                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
  85         },
  86 };
  87
  88 static struct mtd_partition nor_partitions[] = {
  89         /* bootloader (U-Boot, etc) in first sector */
  90         {
  91               .name             = "bootloader",
  92               .offset           = 0,
  93               .size             = SZ_128K,
  94               .mask_flags       = MTD_WRITEABLE, /* force read-only */
  95         },
  96         /* bootloader params in the next sector */
  97         {
  98               .name             = "params",
  99               .offset           = MTDPART_OFS_APPEND,
 100               .size             = SZ_128K,
 101               .mask_flags       = 0,
 102         },
 103         /* kernel */
 104         {
 105               .name             = "kernel",
 106               .offset           = MTDPART_OFS_APPEND,
 107               .size             = SZ_2M,
 108               .mask_flags       = 0
 109         },
 110         /* rest of flash is a file system */
 111         {
 112               .name             = "rootfs",
 113               .offset           = MTDPART_OFS_APPEND,
 114               .size             = MTDPART_SIZ_FULL,
 115               .mask_flags       = 0
 116         },
 117 };
 118
 119 static struct physmap_flash_data nor_data = {
 120         .width          = 2,
 121         .set_vpp        = omap1_set_vpp,
 122         .parts          = nor_partitions,
 123         .nr_parts       = ARRAY_SIZE(nor_partitions),
 124 };
 125
 126 static struct resource nor_resource = {
 127         .start          = OMAP_CS0_PHYS,
 128         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
 129         .flags          = IORESOURCE_MEM,
 130 };
 131
 132 static struct platform_device nor_device = {
 133         .name           = "physmap-flash",
 134         .id             = 0,
 135         .dev            = {
 136                 .platform_data  = &nor_data,
 137         },
 138         .num_resources  = 1,
 139         .resource       = &nor_resource,
 140 };
 141
 142 static void nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 143 {
 144         struct nand_chip *this = mtd->priv;
 145         unsigned long mask;
 146
 147         if (cmd == NAND_CMD_NONE)
 148                 return;
 149
 150         mask = (ctrl & NAND_CLE) ? 0x02 : 0;
 151         if (ctrl & NAND_ALE)
 152                 mask |= 0x04;
 153         writeb(cmd, (unsigned long)this->IO_ADDR_W | mask);
 154 }
 155
 156 #define P2_NAND_RB_GPIO_PIN     62
 157
 158 static int nand_dev_ready(struct mtd_info *mtd)
 159 {
 160         return gpio_get_value(P2_NAND_RB_GPIO_PIN);
 161 }
 162
 163 static const char *part_probes[] = { "cmdlinepart", NULL };
 164
 165 static struct platform_nand_data nand_data = {
 166         .chip   = {
 167                 .nr_chips               = 1,
 168                 .chip_offset            = 0,
 169                 .options                = NAND_SAMSUNG_LP_OPTIONS,
 170                 .part_probe_types       = part_probes,
 171         },
 172         .ctrl   = {
 173                 .cmd_ctrl       = nand_cmd_ctl,
 174                 .dev_ready      = nand_dev_ready,
 175         },
 176 };
 177
 178 static struct resource nand_resource = {
 179         .start          = OMAP_CS3_PHYS,
 180         .end            = OMAP_CS3_PHYS + SZ_4K - 1,
 181         .flags          = IORESOURCE_MEM,
 182 };
 183
 184 static struct platform_device nand_device = {
 185         .name           = "gen_nand",
 186         .id             = 0,
 187         .dev            = {
 188                 .platform_data  = &nand_data,
 189         },
 190         .num_resources  = 1,
 191         .resource       = &nand_resource,
 192 };
 193
 194 static struct platform_device smc91x_device = {
 195         .name           = "smc91x",
 196         .id             = 0,
 197         .dev    = {
 198                 .platform_data  = &smc91x_info,
 199         },
 200         .num_resources  = ARRAY_SIZE(smc91x_resources),
 201         .resource       = smc91x_resources,
 202 };
 203
 204 static struct resource kp_resources[] = {
 205         [0] = {
 206                 .start  = INT_7XX_MPUIO_KEYPAD,
 207                 .end    = INT_7XX_MPUIO_KEYPAD,
 208                 .flags  = IORESOURCE_IRQ,
 209         },
 210 };
 211
 212 static const struct matrix_keymap_data p2_keymap_data = {
 213         .keymap         = p2_keymap,
 214         .keymap_size    = ARRAY_SIZE(p2_keymap),
 215 };
 216
 217 static struct omap_kp_platform_data kp_data = {
 218         .rows           = 8,
 219         .cols           = 8,
 220         .keymap_data    = &p2_keymap_data,
 221         .delay          = 4,
 222         .dbounce        = true,
 223 };
 224
 225 static struct platform_device kp_device = {
 226         .name           = "omap-keypad",
 227         .id             = -1,
 228         .dev            = {
 229                 .platform_data = &kp_data,
 230         },
 231         .num_resources  = ARRAY_SIZE(kp_resources),
 232         .resource       = kp_resources,
 233 };
 234
 235 static struct platform_device lcd_device = {
 236         .name           = "lcd_p2",
 237         .id             = -1,
 238 };
 239
 240 static struct platform_device *devices[] __initdata = {
 241         &nor_device,
 242         &nand_device,
 243         &smc91x_device,
 244         &kp_device,
 245         &lcd_device,
 246 };
 247
 248 static struct omap_lcd_config perseus2_lcd_config __initdata = {
 249         .ctrl_name      = "internal",
 250 };
 251
 252 static struct omap_board_config_kernel perseus2_config[] __initdata = {
 253         { OMAP_TAG_LCD,         &perseus2_lcd_config },
 254 };
 255
 256 static void __init perseus2_init_smc91x(void)
 257 {
 258         fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
 259         mdelay(50);
 260         fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
 261                    H2P2_DBG_FPGA_LAN_RESET);
 262         mdelay(50);
 263 }
 264
 265 static void __init omap_perseus2_init(void)
 266 {
 267         perseus2_init_smc91x();
 268
 269         if (gpio_request(P2_NAND_RB_GPIO_PIN, "NAND ready") < 0)
 270                 BUG();
 271         gpio_direction_input(P2_NAND_RB_GPIO_PIN);
 272
 273         omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
 274         omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
 275
 276         /* Mux pins for keypad */
 277         omap_cfg_reg(E2_7XX_KBR0);
 278         omap_cfg_reg(J7_7XX_KBR1);
 279         omap_cfg_reg(E1_7XX_KBR2);
 280         omap_cfg_reg(F3_7XX_KBR3);
 281         omap_cfg_reg(D2_7XX_KBR4);
 282         omap_cfg_reg(C2_7XX_KBC0);
 283         omap_cfg_reg(D3_7XX_KBC1);
 284         omap_cfg_reg(E4_7XX_KBC2);
 285         omap_cfg_reg(F4_7XX_KBC3);
 286         omap_cfg_reg(E3_7XX_KBC4);
 287
 288         platform_add_devices(devices, ARRAY_SIZE(devices));
 289
 290         omap_board_config = perseus2_config;
 291         omap_board_config_size = ARRAY_SIZE(perseus2_config);
 292         omap_serial_init();
 293         omap_register_i2c_bus(1, 100, NULL, 0);
 294 }
 295
 296 static void __init omap_perseus2_init_irq(void)
 297 {
 298         omap1_init_common_hw();
 299         omap1_init_irq();
 300 }
 301 /* Only FPGA needs to be mapped here. All others are done with ioremap */
 302 static struct map_desc omap_perseus2_io_desc[] __initdata = {
 303         {
 304                 .virtual        = H2P2_DBG_FPGA_BASE,
 305                 .pfn            = __phys_to_pfn(H2P2_DBG_FPGA_START),
 306                 .length         = H2P2_DBG_FPGA_SIZE,
 307                 .type           = MT_DEVICE
 308         }
 309 };
 310
 311 static void __init omap_perseus2_map_io(void)
 312 {
 313         omap1_map_common_io();
 314         iotable_init(omap_perseus2_io_desc,
 315                      ARRAY_SIZE(omap_perseus2_io_desc));
 316
 317         /* Early, board-dependent init */
 318
 319         /*
 320          * Hold GSM Reset until needed
 321          */
 322         omap_writew(omap_readw(OMAP7XX_DSP_M_CTL) & ~1, OMAP7XX_DSP_M_CTL);
 323
 324         /*
 325          * UARTs -> done automagically by 8250 driver
 326          */
 327
 328         /*
 329          * CSx timings, GPIO Mux ... setup
 330          */
 331
 332         /* Flash: CS0 timings setup */
 333         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_0);
 334         omap_writel(0x00000088, OMAP7XX_FLASH_ACFG_0);
 335
 336         /*
 337          * Ethernet support through the debug board
 338          * CS1 timings setup
 339          */
 340         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_1);
 341         omap_writel(0x00000000, OMAP7XX_FLASH_ACFG_1);
 342
 343         /*
 344          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 345          * It is used as the Ethernet controller interrupt
 346          */
 347         omap_writel(omap_readl(OMAP7XX_IO_CONF_9) & 0x1FFFFFFF, OMAP7XX_IO_CONF_9);
 348 }
 349
 350 MACHINE_START(OMAP_PERSEUS2, "OMAP730 Perseus2")
 351         /* Maintainer: Kevin Hilman <kjh@hilman.org> */
 352         .atag_offset    = 0x100,
 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          = &omap1_timer,
 358 MACHINE_END