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 #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 #include <linux/omapfb.h>
  25
  26 #include <asm/mach-types.h>
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/map.h>
  29
  30 #include <mach/tc.h>
  31 #include <mach/mux.h>
  32 #include <mach/flash.h>
  33 #include <linux/platform_data/keypad-omap.h>
  34
  35 #include <mach/hardware.h>
  36
  37 #include "iomap.h"
  38 #include "common.h"
  39 #include "fpga.h"
  40
  41 /* fsample is pretty close to p2-sample */
  42
  43 #define fsample_cpld_read(reg) __raw_readb(reg)
  44 #define fsample_cpld_write(val, reg) __raw_writeb(val, reg)
  45
  46 #define FSAMPLE_CPLD_BASE    0xE8100000
  47 #define FSAMPLE_CPLD_SIZE    SZ_4K
  48 #define FSAMPLE_CPLD_START   0x05080000
  49
  50 #define FSAMPLE_CPLD_REG_A   (FSAMPLE_CPLD_BASE + 0x00)
  51 #define FSAMPLE_CPLD_SWITCH  (FSAMPLE_CPLD_BASE + 0x02)
  52 #define FSAMPLE_CPLD_UART    (FSAMPLE_CPLD_BASE + 0x02)
  53 #define FSAMPLE_CPLD_REG_B   (FSAMPLE_CPLD_BASE + 0x04)
  54 #define FSAMPLE_CPLD_VERSION (FSAMPLE_CPLD_BASE + 0x06)
  55 #define FSAMPLE_CPLD_SET_CLR (FSAMPLE_CPLD_BASE + 0x06)
  56
  57 #define FSAMPLE_CPLD_BIT_BT_RESET         0
  58 #define FSAMPLE_CPLD_BIT_LCD_RESET        1
  59 #define FSAMPLE_CPLD_BIT_CAM_PWDN         2
  60 #define FSAMPLE_CPLD_BIT_CHARGER_ENABLE   3
  61 #define FSAMPLE_CPLD_BIT_SD_MMC_EN        4
  62 #define FSAMPLE_CPLD_BIT_aGPS_PWREN       5
  63 #define FSAMPLE_CPLD_BIT_BACKLIGHT        6
  64 #define FSAMPLE_CPLD_BIT_aGPS_EN_RESET    7
  65 #define FSAMPLE_CPLD_BIT_aGPS_SLEEPx_N    8
  66 #define FSAMPLE_CPLD_BIT_OTG_RESET        9
  67
  68 #define fsample_cpld_set(bit) \
  69     fsample_cpld_write((((bit) & 15) << 4) | 0x0f, FSAMPLE_CPLD_SET_CLR)
  70
  71 #define fsample_cpld_clear(bit) \
  72     fsample_cpld_write(0xf0 | ((bit) & 15), FSAMPLE_CPLD_SET_CLR)
  73
  74 static const unsigned int fsample_keymap[] = {
  75         KEY(0, 0, KEY_UP),
  76         KEY(1, 0, KEY_RIGHT),
  77         KEY(2, 0, KEY_LEFT),
  78         KEY(3, 0, KEY_DOWN),
  79         KEY(4, 0, KEY_ENTER),
  80         KEY(0, 1, KEY_F10),
  81         KEY(1, 1, KEY_SEND),
  82         KEY(2, 1, KEY_END),
  83         KEY(3, 1, KEY_VOLUMEDOWN),
  84         KEY(4, 1, KEY_VOLUMEUP),
  85         KEY(5, 1, KEY_RECORD),
  86         KEY(0, 2, KEY_F9),
  87         KEY(1, 2, KEY_3),
  88         KEY(2, 2, KEY_6),
  89         KEY(3, 2, KEY_9),
  90         KEY(4, 2, KEY_KPDOT),
  91         KEY(0, 3, KEY_BACK),
  92         KEY(1, 3, KEY_2),
  93         KEY(2, 3, KEY_5),
  94         KEY(3, 3, KEY_8),
  95         KEY(4, 3, KEY_0),
  96         KEY(5, 3, KEY_KPSLASH),
  97         KEY(0, 4, KEY_HOME),
  98         KEY(1, 4, KEY_1),
  99         KEY(2, 4, KEY_4),
 100         KEY(3, 4, KEY_7),
 101         KEY(4, 4, KEY_KPASTERISK),
 102         KEY(5, 4, KEY_POWER),
 103 };
 104
 105 static struct smc91x_platdata smc91x_info = {
 106         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
 107         .leda   = RPC_LED_100_10,
 108         .ledb   = RPC_LED_TX_RX,
 109 };
 110
 111 static struct resource smc91x_resources[] = {
 112         [0] = {
 113                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
 114                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
 115                 .flags  = IORESOURCE_MEM,
 116         },
 117         [1] = {
 118                 .start  = INT_7XX_MPU_EXT_NIRQ,
 119                 .end    = 0,
 120                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 121         },
 122 };
 123
 124 static void __init fsample_init_smc91x(void)
 125 {
 126         __raw_writeb(1, H2P2_DBG_FPGA_LAN_RESET);
 127         mdelay(50);
 128         __raw_writeb(__raw_readb(H2P2_DBG_FPGA_LAN_RESET) & ~1,
 129                    H2P2_DBG_FPGA_LAN_RESET);
 130         mdelay(50);
 131 }
 132
 133 static struct mtd_partition nor_partitions[] = {
 134         /* bootloader (U-Boot, etc) in first sector */
 135         {
 136               .name             = "bootloader",
 137               .offset           = 0,
 138               .size             = SZ_128K,
 139               .mask_flags       = MTD_WRITEABLE, /* force read-only */
 140         },
 141         /* bootloader params in the next sector */
 142         {
 143               .name             = "params",
 144               .offset           = MTDPART_OFS_APPEND,
 145               .size             = SZ_128K,
 146               .mask_flags       = 0,
 147         },
 148         /* kernel */
 149         {
 150               .name             = "kernel",
 151               .offset           = MTDPART_OFS_APPEND,
 152               .size             = SZ_2M,
 153               .mask_flags       = 0
 154         },
 155         /* rest of flash is a file system */
 156         {
 157               .name             = "rootfs",
 158               .offset           = MTDPART_OFS_APPEND,
 159               .size             = MTDPART_SIZ_FULL,
 160               .mask_flags       = 0
 161         },
 162 };
 163
 164 static struct physmap_flash_data nor_data = {
 165         .width          = 2,
 166         .set_vpp        = omap1_set_vpp,
 167         .parts          = nor_partitions,
 168         .nr_parts       = ARRAY_SIZE(nor_partitions),
 169 };
 170
 171 static struct resource nor_resource = {
 172         .start          = OMAP_CS0_PHYS,
 173         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
 174         .flags          = IORESOURCE_MEM,
 175 };
 176
 177 static struct platform_device nor_device = {
 178         .name           = "physmap-flash",
 179         .id             = 0,
 180         .dev            = {
 181                 .platform_data  = &nor_data,
 182         },
 183         .num_resources  = 1,
 184         .resource       = &nor_resource,
 185 };
 186
 187 #define FSAMPLE_NAND_RB_GPIO_PIN        62
 188
 189 static int nand_dev_ready(struct mtd_info *mtd)
 190 {
 191         return gpio_get_value(FSAMPLE_NAND_RB_GPIO_PIN);
 192 }
 193
 194 static struct platform_nand_data nand_data = {
 195         .chip   = {
 196                 .nr_chips               = 1,
 197                 .chip_offset            = 0,
 198                 .options                = NAND_SAMSUNG_LP_OPTIONS,
 199         },
 200         .ctrl   = {
 201                 .cmd_ctrl       = omap1_nand_cmd_ctl,
 202                 .dev_ready      = nand_dev_ready,
 203         },
 204 };
 205
 206 static struct resource nand_resource = {
 207         .start          = OMAP_CS3_PHYS,
 208         .end            = OMAP_CS3_PHYS + SZ_4K - 1,
 209         .flags          = IORESOURCE_MEM,
 210 };
 211
 212 static struct platform_device nand_device = {
 213         .name           = "gen_nand",
 214         .id             = 0,
 215         .dev            = {
 216                 .platform_data  = &nand_data,
 217         },
 218         .num_resources  = 1,
 219         .resource       = &nand_resource,
 220 };
 221
 222 static struct platform_device smc91x_device = {
 223         .name           = "smc91x",
 224         .id             = 0,
 225         .dev    = {
 226                 .platform_data  = &smc91x_info,
 227         },
 228         .num_resources  = ARRAY_SIZE(smc91x_resources),
 229         .resource       = smc91x_resources,
 230 };
 231
 232 static struct resource kp_resources[] = {
 233         [0] = {
 234                 .start  = INT_7XX_MPUIO_KEYPAD,
 235                 .end    = INT_7XX_MPUIO_KEYPAD,
 236                 .flags  = IORESOURCE_IRQ,
 237         },
 238 };
 239
 240 static const struct matrix_keymap_data fsample_keymap_data = {
 241         .keymap         = fsample_keymap,
 242         .keymap_size    = ARRAY_SIZE(fsample_keymap),
 243 };
 244
 245 static struct omap_kp_platform_data kp_data = {
 246         .rows           = 8,
 247         .cols           = 8,
 248         .keymap_data    = &fsample_keymap_data,
 249         .delay          = 4,
 250 };
 251
 252 static struct platform_device kp_device = {
 253         .name           = "omap-keypad",
 254         .id             = -1,
 255         .dev            = {
 256                 .platform_data = &kp_data,
 257         },
 258         .num_resources  = ARRAY_SIZE(kp_resources),
 259         .resource       = kp_resources,
 260 };
 261
 262 static struct platform_device *devices[] __initdata = {
 263         &nor_device,
 264         &nand_device,
 265         &smc91x_device,
 266         &kp_device,
 267 };
 268
 269 static struct omap_lcd_config fsample_lcd_config = {
 270         .ctrl_name      = "internal",
 271 };
 272
 273 static void __init omap_fsample_init(void)
 274 {
 275         /* Early, board-dependent init */
 276
 277         /*
 278          * Hold GSM Reset until needed
 279          */
 280         omap_writew(omap_readw(OMAP7XX_DSP_M_CTL) & ~1, OMAP7XX_DSP_M_CTL);
 281
 282         /*
 283          * UARTs -> done automagically by 8250 driver
 284          */
 285
 286         /*
 287          * CSx timings, GPIO Mux ... setup
 288          */
 289
 290         /* Flash: CS0 timings setup */
 291         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_0);
 292         omap_writel(0x00000088, OMAP7XX_FLASH_ACFG_0);
 293
 294         /*
 295          * Ethernet support through the debug board
 296          * CS1 timings setup
 297          */
 298         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_1);
 299         omap_writel(0x00000000, OMAP7XX_FLASH_ACFG_1);
 300
 301         /*
 302          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 303          * It is used as the Ethernet controller interrupt
 304          */
 305         omap_writel(omap_readl(OMAP7XX_IO_CONF_9) & 0x1FFFFFFF,
 306                         OMAP7XX_IO_CONF_9);
 307
 308         fsample_init_smc91x();
 309
 310         BUG_ON(gpio_request(FSAMPLE_NAND_RB_GPIO_PIN, "NAND ready") < 0);
 311         gpio_direction_input(FSAMPLE_NAND_RB_GPIO_PIN);
 312
 313         omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
 314         omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
 315
 316         /* Mux pins for keypad */
 317         omap_cfg_reg(E2_7XX_KBR0);
 318         omap_cfg_reg(J7_7XX_KBR1);
 319         omap_cfg_reg(E1_7XX_KBR2);
 320         omap_cfg_reg(F3_7XX_KBR3);
 321         omap_cfg_reg(D2_7XX_KBR4);
 322         omap_cfg_reg(C2_7XX_KBC0);
 323         omap_cfg_reg(D3_7XX_KBC1);
 324         omap_cfg_reg(E4_7XX_KBC2);
 325         omap_cfg_reg(F4_7XX_KBC3);
 326         omap_cfg_reg(E3_7XX_KBC4);
 327
 328         platform_add_devices(devices, ARRAY_SIZE(devices));
 329
 330         omap_serial_init();
 331         omap_register_i2c_bus(1, 100, NULL, 0);
 332
 333         omapfb_set_lcd_config(&fsample_lcd_config);
 334 }
 335
 336 /* Only FPGA needs to be mapped here. All others are done with ioremap */
 337 static struct map_desc omap_fsample_io_desc[] __initdata = {
 338         {
 339                 .virtual        = H2P2_DBG_FPGA_BASE,
 340                 .pfn            = __phys_to_pfn(H2P2_DBG_FPGA_START),
 341                 .length         = H2P2_DBG_FPGA_SIZE,
 342                 .type           = MT_DEVICE
 343         },
 344         {
 345                 .virtual        = FSAMPLE_CPLD_BASE,
 346                 .pfn            = __phys_to_pfn(FSAMPLE_CPLD_START),
 347                 .length         = FSAMPLE_CPLD_SIZE,
 348                 .type           = MT_DEVICE
 349         }
 350 };
 351
 352 static void __init omap_fsample_map_io(void)
 353 {
 354         omap15xx_map_io();
 355         iotable_init(omap_fsample_io_desc,
 356                      ARRAY_SIZE(omap_fsample_io_desc));
 357 }
 358
 359 MACHINE_START(OMAP_FSAMPLE, "OMAP730 F-Sample")
 360 /* Maintainer: Brian Swetland <swetland@google.com> */
 361         .atag_offset    = 0x100,
 362         .map_io         = omap_fsample_map_io,
 363         .init_early     = omap1_init_early,
 364         .init_irq       = omap1_init_irq,
 365         .init_machine   = omap_fsample_init,
 366         .init_late      = omap1_init_late,
 367         .init_time      = omap1_timer_init,
 368         .restart        = omap1_restart,
 369 MACHINE_END