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

   1 /*
   2  * linux/arch/arm/mach-omap1/board-fsample.c
   3  *
   4  * Modified from board-perseus2.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/flash.h>
  34 #include <plat/fpga.h>
  35 #include <plat/keypad.h>
  36 #include <plat/common.h>
  37 #include <plat/board.h>
  38
  39 /* fsample is pretty close to p2-sample */
  40
  41 #define fsample_cpld_read(reg) __raw_readb(reg)
  42 #define fsample_cpld_write(val, reg) __raw_writeb(val, reg)
  43
  44 #define FSAMPLE_CPLD_BASE    0xE8100000
  45 #define FSAMPLE_CPLD_SIZE    SZ_4K
  46 #define FSAMPLE_CPLD_START   0x05080000
  47
  48 #define FSAMPLE_CPLD_REG_A   (FSAMPLE_CPLD_BASE + 0x00)
  49 #define FSAMPLE_CPLD_SWITCH  (FSAMPLE_CPLD_BASE + 0x02)
  50 #define FSAMPLE_CPLD_UART    (FSAMPLE_CPLD_BASE + 0x02)
  51 #define FSAMPLE_CPLD_REG_B   (FSAMPLE_CPLD_BASE + 0x04)
  52 #define FSAMPLE_CPLD_VERSION (FSAMPLE_CPLD_BASE + 0x06)
  53 #define FSAMPLE_CPLD_SET_CLR (FSAMPLE_CPLD_BASE + 0x06)
  54
  55 #define FSAMPLE_CPLD_BIT_BT_RESET         0
  56 #define FSAMPLE_CPLD_BIT_LCD_RESET        1
  57 #define FSAMPLE_CPLD_BIT_CAM_PWDN         2
  58 #define FSAMPLE_CPLD_BIT_CHARGER_ENABLE   3
  59 #define FSAMPLE_CPLD_BIT_SD_MMC_EN        4
  60 #define FSAMPLE_CPLD_BIT_aGPS_PWREN       5
  61 #define FSAMPLE_CPLD_BIT_BACKLIGHT        6
  62 #define FSAMPLE_CPLD_BIT_aGPS_EN_RESET    7
  63 #define FSAMPLE_CPLD_BIT_aGPS_SLEEPx_N    8
  64 #define FSAMPLE_CPLD_BIT_OTG_RESET        9
  65
  66 #define fsample_cpld_set(bit) \
  67     fsample_cpld_write((((bit) & 15) << 4) | 0x0f, FSAMPLE_CPLD_SET_CLR)
  68
  69 #define fsample_cpld_clear(bit) \
  70     fsample_cpld_write(0xf0 | ((bit) & 15), FSAMPLE_CPLD_SET_CLR)
  71
  72 static const unsigned int fsample_keymap[] = {
  73         KEY(0, 0, KEY_UP),
  74         KEY(1, 0, KEY_RIGHT),
  75         KEY(2, 0, KEY_LEFT),
  76         KEY(3, 0, KEY_DOWN),
  77         KEY(4, 0, KEY_ENTER),
  78         KEY(0, 1, KEY_F10),
  79         KEY(1, 1, KEY_SEND),
  80         KEY(2, 1, KEY_END),
  81         KEY(3, 1, KEY_VOLUMEDOWN),
  82         KEY(4, 1, KEY_VOLUMEUP),
  83         KEY(5, 1, KEY_RECORD),
  84         KEY(0, 2, KEY_F9),
  85         KEY(1, 2, KEY_3),
  86         KEY(2, 2, KEY_6),
  87         KEY(3, 2, KEY_9),
  88         KEY(4, 2, KEY_KPDOT),
  89         KEY(0, 3, KEY_BACK),
  90         KEY(1, 3, KEY_2),
  91         KEY(2, 3, KEY_5),
  92         KEY(3, 3, KEY_8),
  93         KEY(4, 3, KEY_0),
  94         KEY(5, 3, KEY_KPSLASH),
  95         KEY(0, 4, KEY_HOME),
  96         KEY(1, 4, KEY_1),
  97         KEY(2, 4, KEY_4),
  98         KEY(3, 4, KEY_7),
  99         KEY(4, 4, KEY_KPASTERISK),
 100         KEY(5, 4, KEY_POWER),
 101 };
 102
 103 static struct smc91x_platdata smc91x_info = {
 104         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
 105         .leda   = RPC_LED_100_10,
 106         .ledb   = RPC_LED_TX_RX,
 107 };
 108
 109 static struct resource smc91x_resources[] = {
 110         [0] = {
 111                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
 112                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
 113                 .flags  = IORESOURCE_MEM,
 114         },
 115         [1] = {
 116                 .start  = INT_7XX_MPU_EXT_NIRQ,
 117                 .end    = 0,
 118                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 119         },
 120 };
 121
 122 static void __init fsample_init_smc91x(void)
 123 {
 124         fpga_write(1, H2P2_DBG_FPGA_LAN_RESET);
 125         mdelay(50);
 126         fpga_write(fpga_read(H2P2_DBG_FPGA_LAN_RESET) & ~1,
 127                    H2P2_DBG_FPGA_LAN_RESET);
 128         mdelay(50);
 129 }
 130
 131 static struct mtd_partition nor_partitions[] = {
 132         /* bootloader (U-Boot, etc) in first sector */
 133         {
 134               .name             = "bootloader",
 135               .offset           = 0,
 136               .size             = SZ_128K,
 137               .mask_flags       = MTD_WRITEABLE, /* force read-only */
 138         },
 139         /* bootloader params in the next sector */
 140         {
 141               .name             = "params",
 142               .offset           = MTDPART_OFS_APPEND,
 143               .size             = SZ_128K,
 144               .mask_flags       = 0,
 145         },
 146         /* kernel */
 147         {
 148               .name             = "kernel",
 149               .offset           = MTDPART_OFS_APPEND,
 150               .size             = SZ_2M,
 151               .mask_flags       = 0
 152         },
 153         /* rest of flash is a file system */
 154         {
 155               .name             = "rootfs",
 156               .offset           = MTDPART_OFS_APPEND,
 157               .size             = MTDPART_SIZ_FULL,
 158               .mask_flags       = 0
 159         },
 160 };
 161
 162 static struct physmap_flash_data nor_data = {
 163         .width          = 2,
 164         .set_vpp        = omap1_set_vpp,
 165         .parts          = nor_partitions,
 166         .nr_parts       = ARRAY_SIZE(nor_partitions),
 167 };
 168
 169 static struct resource nor_resource = {
 170         .start          = OMAP_CS0_PHYS,
 171         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
 172         .flags          = IORESOURCE_MEM,
 173 };
 174
 175 static struct platform_device nor_device = {
 176         .name           = "physmap-flash",
 177         .id             = 0,
 178         .dev            = {
 179                 .platform_data  = &nor_data,
 180         },
 181         .num_resources  = 1,
 182         .resource       = &nor_resource,
 183 };
 184
 185 static void nand_cmd_ctl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 186 {
 187         struct nand_chip *this = mtd->priv;
 188         unsigned long mask;
 189
 190         if (cmd == NAND_CMD_NONE)
 191                 return;
 192
 193         mask = (ctrl & NAND_CLE) ? 0x02 : 0;
 194         if (ctrl & NAND_ALE)
 195                 mask |= 0x04;
 196         writeb(cmd, (unsigned long)this->IO_ADDR_W | mask);
 197 }
 198
 199 #define FSAMPLE_NAND_RB_GPIO_PIN        62
 200
 201 static int nand_dev_ready(struct mtd_info *mtd)
 202 {
 203         return gpio_get_value(FSAMPLE_NAND_RB_GPIO_PIN);
 204 }
 205
 206 static const char *part_probes[] = { "cmdlinepart", NULL };
 207
 208 static struct platform_nand_data nand_data = {
 209         .chip   = {
 210                 .nr_chips               = 1,
 211                 .chip_offset            = 0,
 212                 .options                = NAND_SAMSUNG_LP_OPTIONS,
 213                 .part_probe_types       = part_probes,
 214         },
 215         .ctrl   = {
 216                 .cmd_ctrl       = nand_cmd_ctl,
 217                 .dev_ready      = nand_dev_ready,
 218         },
 219 };
 220
 221 static struct resource nand_resource = {
 222         .start          = OMAP_CS3_PHYS,
 223         .end            = OMAP_CS3_PHYS + SZ_4K - 1,
 224         .flags          = IORESOURCE_MEM,
 225 };
 226
 227 static struct platform_device nand_device = {
 228         .name           = "gen_nand",
 229         .id             = 0,
 230         .dev            = {
 231                 .platform_data  = &nand_data,
 232         },
 233         .num_resources  = 1,
 234         .resource       = &nand_resource,
 235 };
 236
 237 static struct platform_device smc91x_device = {
 238         .name           = "smc91x",
 239         .id             = 0,
 240         .dev    = {
 241                 .platform_data  = &smc91x_info,
 242         },
 243         .num_resources  = ARRAY_SIZE(smc91x_resources),
 244         .resource       = smc91x_resources,
 245 };
 246
 247 static struct resource kp_resources[] = {
 248         [0] = {
 249                 .start  = INT_7XX_MPUIO_KEYPAD,
 250                 .end    = INT_7XX_MPUIO_KEYPAD,
 251                 .flags  = IORESOURCE_IRQ,
 252         },
 253 };
 254
 255 static const struct matrix_keymap_data fsample_keymap_data = {
 256         .keymap         = fsample_keymap,
 257         .keymap_size    = ARRAY_SIZE(fsample_keymap),
 258 };
 259
 260 static struct omap_kp_platform_data kp_data = {
 261         .rows           = 8,
 262         .cols           = 8,
 263         .keymap_data    = &fsample_keymap_data,
 264         .delay          = 4,
 265 };
 266
 267 static struct platform_device kp_device = {
 268         .name           = "omap-keypad",
 269         .id             = -1,
 270         .dev            = {
 271                 .platform_data = &kp_data,
 272         },
 273         .num_resources  = ARRAY_SIZE(kp_resources),
 274         .resource       = kp_resources,
 275 };
 276
 277 static struct platform_device lcd_device = {
 278         .name           = "lcd_p2",
 279         .id             = -1,
 280 };
 281
 282 static struct platform_device *devices[] __initdata = {
 283         &nor_device,
 284         &nand_device,
 285         &smc91x_device,
 286         &kp_device,
 287         &lcd_device,
 288 };
 289
 290 static struct omap_lcd_config fsample_lcd_config = {
 291         .ctrl_name      = "internal",
 292 };
 293
 294 static struct omap_board_config_kernel fsample_config[] __initdata = {
 295         { OMAP_TAG_LCD,         &fsample_lcd_config },
 296 };
 297
 298 static void __init omap_fsample_init(void)
 299 {
 300         fsample_init_smc91x();
 301
 302         if (gpio_request(FSAMPLE_NAND_RB_GPIO_PIN, "NAND ready") < 0)
 303                 BUG();
 304         gpio_direction_input(FSAMPLE_NAND_RB_GPIO_PIN);
 305
 306         omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
 307         omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
 308
 309         /* Mux pins for keypad */
 310         omap_cfg_reg(E2_7XX_KBR0);
 311         omap_cfg_reg(J7_7XX_KBR1);
 312         omap_cfg_reg(E1_7XX_KBR2);
 313         omap_cfg_reg(F3_7XX_KBR3);
 314         omap_cfg_reg(D2_7XX_KBR4);
 315         omap_cfg_reg(C2_7XX_KBC0);
 316         omap_cfg_reg(D3_7XX_KBC1);
 317         omap_cfg_reg(E4_7XX_KBC2);
 318         omap_cfg_reg(F4_7XX_KBC3);
 319         omap_cfg_reg(E3_7XX_KBC4);
 320
 321         platform_add_devices(devices, ARRAY_SIZE(devices));
 322
 323         omap_board_config = fsample_config;
 324         omap_board_config_size = ARRAY_SIZE(fsample_config);
 325         omap_serial_init();
 326         omap_register_i2c_bus(1, 100, NULL, 0);
 327 }
 328
 329 static void __init omap_fsample_init_irq(void)
 330 {
 331         omap1_init_common_hw();
 332         omap_init_irq();
 333 }
 334
 335 /* Only FPGA needs to be mapped here. All others are done with ioremap */
 336 static struct map_desc omap_fsample_io_desc[] __initdata = {
 337         {
 338                 .virtual        = H2P2_DBG_FPGA_BASE,
 339                 .pfn            = __phys_to_pfn(H2P2_DBG_FPGA_START),
 340                 .length         = H2P2_DBG_FPGA_SIZE,
 341                 .type           = MT_DEVICE
 342         },
 343         {
 344                 .virtual        = FSAMPLE_CPLD_BASE,
 345                 .pfn            = __phys_to_pfn(FSAMPLE_CPLD_START),
 346                 .length         = FSAMPLE_CPLD_SIZE,
 347                 .type           = MT_DEVICE
 348         }
 349 };
 350
 351 static void __init omap_fsample_map_io(void)
 352 {
 353         omap1_map_common_io();
 354         iotable_init(omap_fsample_io_desc,
 355                      ARRAY_SIZE(omap_fsample_io_desc));
 356
 357         /* Early, board-dependent init */
 358
 359         /*
 360          * Hold GSM Reset until needed
 361          */
 362         omap_writew(omap_readw(OMAP7XX_DSP_M_CTL) & ~1, OMAP7XX_DSP_M_CTL);
 363
 364         /*
 365          * UARTs -> done automagically by 8250 driver
 366          */
 367
 368         /*
 369          * CSx timings, GPIO Mux ... setup
 370          */
 371
 372         /* Flash: CS0 timings setup */
 373         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_0);
 374         omap_writel(0x00000088, OMAP7XX_FLASH_ACFG_0);
 375
 376         /*
 377          * Ethernet support through the debug board
 378          * CS1 timings setup
 379          */
 380         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_1);
 381         omap_writel(0x00000000, OMAP7XX_FLASH_ACFG_1);
 382
 383         /*
 384          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 385          * It is used as the Ethernet controller interrupt
 386          */
 387         omap_writel(omap_readl(OMAP7XX_IO_CONF_9) & 0x1FFFFFFF, OMAP7XX_IO_CONF_9);
 388 }
 389
 390 MACHINE_START(OMAP_FSAMPLE, "OMAP730 F-Sample")
 391 /* Maintainer: Brian Swetland <swetland@google.com> */
 392         .boot_params    = 0x10000100,
 393         .map_io         = omap_fsample_map_io,
 394         .reserve        = omap_reserve,
 395         .init_irq       = omap_fsample_init_irq,
 396         .init_machine   = omap_fsample_init,
 397         .timer          = &omap_timer,
 398 MACHINE_END