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/platnand.h>
  20 #include <linux/mtd/physmap.h>
  21 #include <linux/input.h>
  22 #include <linux/smc91x.h>
  23 #include <linux/omapfb.h>
  24
  25 #include <asm/mach-types.h>
  26 #include <asm/mach/arch.h>
  27 #include <asm/mach/map.h>
  28
  29 #include <mach/tc.h>
  30 #include <mach/mux.h>
  31 #include "flash.h"
  32 #include <linux/platform_data/keypad-omap.h>
  33
  34 #include <mach/hardware.h>
  35
  36 #include "iomap.h"
  37 #include "common.h"
  38 #include "fpga.h"
  39
  40 /* fsample is pretty close to p2-sample */
  41
  42 #define fsample_cpld_read(reg) __raw_readb(reg)
  43 #define fsample_cpld_write(val, reg) __raw_writeb(val, reg)
  44
  45 #define FSAMPLE_CPLD_BASE    0xE8100000
  46 #define FSAMPLE_CPLD_SIZE    SZ_4K
  47 #define FSAMPLE_CPLD_START   0x05080000
  48
  49 #define FSAMPLE_CPLD_REG_A   (FSAMPLE_CPLD_BASE + 0x00)
  50 #define FSAMPLE_CPLD_SWITCH  (FSAMPLE_CPLD_BASE + 0x02)
  51 #define FSAMPLE_CPLD_UART    (FSAMPLE_CPLD_BASE + 0x02)
  52 #define FSAMPLE_CPLD_REG_B   (FSAMPLE_CPLD_BASE + 0x04)
  53 #define FSAMPLE_CPLD_VERSION (FSAMPLE_CPLD_BASE + 0x06)
  54 #define FSAMPLE_CPLD_SET_CLR (FSAMPLE_CPLD_BASE + 0x06)
  55
  56 #define FSAMPLE_CPLD_BIT_BT_RESET         0
  57 #define FSAMPLE_CPLD_BIT_LCD_RESET        1
  58 #define FSAMPLE_CPLD_BIT_CAM_PWDN         2
  59 #define FSAMPLE_CPLD_BIT_CHARGER_ENABLE   3
  60 #define FSAMPLE_CPLD_BIT_SD_MMC_EN        4
  61 #define FSAMPLE_CPLD_BIT_aGPS_PWREN       5
  62 #define FSAMPLE_CPLD_BIT_BACKLIGHT        6
  63 #define FSAMPLE_CPLD_BIT_aGPS_EN_RESET    7
  64 #define FSAMPLE_CPLD_BIT_aGPS_SLEEPx_N    8
  65 #define FSAMPLE_CPLD_BIT_OTG_RESET        9
  66
  67 #define fsample_cpld_set(bit) \
  68     fsample_cpld_write((((bit) & 15) << 4) | 0x0f, FSAMPLE_CPLD_SET_CLR)
  69
  70 #define fsample_cpld_clear(bit) \
  71     fsample_cpld_write(0xf0 | ((bit) & 15), FSAMPLE_CPLD_SET_CLR)
  72
  73 static const unsigned int fsample_keymap[] = {
  74         KEY(0, 0, KEY_UP),
  75         KEY(1, 0, KEY_RIGHT),
  76         KEY(2, 0, KEY_LEFT),
  77         KEY(3, 0, KEY_DOWN),
  78         KEY(4, 0, KEY_ENTER),
  79         KEY(0, 1, KEY_F10),
  80         KEY(1, 1, KEY_SEND),
  81         KEY(2, 1, KEY_END),
  82         KEY(3, 1, KEY_VOLUMEDOWN),
  83         KEY(4, 1, KEY_VOLUMEUP),
  84         KEY(5, 1, KEY_RECORD),
  85         KEY(0, 2, KEY_F9),
  86         KEY(1, 2, KEY_3),
  87         KEY(2, 2, KEY_6),
  88         KEY(3, 2, KEY_9),
  89         KEY(4, 2, KEY_KPDOT),
  90         KEY(0, 3, KEY_BACK),
  91         KEY(1, 3, KEY_2),
  92         KEY(2, 3, KEY_5),
  93         KEY(3, 3, KEY_8),
  94         KEY(4, 3, KEY_0),
  95         KEY(5, 3, KEY_KPSLASH),
  96         KEY(0, 4, KEY_HOME),
  97         KEY(1, 4, KEY_1),
  98         KEY(2, 4, KEY_4),
  99         KEY(3, 4, KEY_7),
 100         KEY(4, 4, KEY_KPASTERISK),
 101         KEY(5, 4, KEY_POWER),
 102 };
 103
 104 static struct smc91x_platdata smc91x_info = {
 105         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
 106         .leda   = RPC_LED_100_10,
 107         .ledb   = RPC_LED_TX_RX,
 108 };
 109
 110 static struct resource smc91x_resources[] = {
 111         [0] = {
 112                 .start  = H2P2_DBG_FPGA_ETHR_START,     /* Physical */
 113                 .end    = H2P2_DBG_FPGA_ETHR_START + 0xf,
 114                 .flags  = IORESOURCE_MEM,
 115         },
 116         [1] = {
 117                 .start  = INT_7XX_MPU_EXT_NIRQ,
 118                 .end    = 0,
 119                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 120         },
 121 };
 122
 123 static void __init fsample_init_smc91x(void)
 124 {
 125         __raw_writeb(1, H2P2_DBG_FPGA_LAN_RESET);
 126         mdelay(50);
 127         __raw_writeb(__raw_readb(H2P2_DBG_FPGA_LAN_RESET) & ~1,
 128                    H2P2_DBG_FPGA_LAN_RESET);
 129         mdelay(50);
 130 }
 131
 132 static struct mtd_partition nor_partitions[] = {
 133         /* bootloader (U-Boot, etc) in first sector */
 134         {
 135               .name             = "bootloader",
 136               .offset           = 0,
 137               .size             = SZ_128K,
 138               .mask_flags       = MTD_WRITEABLE, /* force read-only */
 139         },
 140         /* bootloader params in the next sector */
 141         {
 142               .name             = "params",
 143               .offset           = MTDPART_OFS_APPEND,
 144               .size             = SZ_128K,
 145               .mask_flags       = 0,
 146         },
 147         /* kernel */
 148         {
 149               .name             = "kernel",
 150               .offset           = MTDPART_OFS_APPEND,
 151               .size             = SZ_2M,
 152               .mask_flags       = 0
 153         },
 154         /* rest of flash is a file system */
 155         {
 156               .name             = "rootfs",
 157               .offset           = MTDPART_OFS_APPEND,
 158               .size             = MTDPART_SIZ_FULL,
 159               .mask_flags       = 0
 160         },
 161 };
 162
 163 static struct physmap_flash_data nor_data = {
 164         .width          = 2,
 165         .set_vpp        = omap1_set_vpp,
 166         .parts          = nor_partitions,
 167         .nr_parts       = ARRAY_SIZE(nor_partitions),
 168 };
 169
 170 static struct resource nor_resource = {
 171         .start          = OMAP_CS0_PHYS,
 172         .end            = OMAP_CS0_PHYS + SZ_32M - 1,
 173         .flags          = IORESOURCE_MEM,
 174 };
 175
 176 static struct platform_device nor_device = {
 177         .name           = "physmap-flash",
 178         .id             = 0,
 179         .dev            = {
 180                 .platform_data  = &nor_data,
 181         },
 182         .num_resources  = 1,
 183         .resource       = &nor_resource,
 184 };
 185
 186 #define FSAMPLE_NAND_RB_GPIO_PIN        62
 187
 188 static int nand_dev_ready(struct nand_chip *chip)
 189 {
 190         return gpio_get_value(FSAMPLE_NAND_RB_GPIO_PIN);
 191 }
 192
 193 static struct platform_nand_data nand_data = {
 194         .chip   = {
 195                 .nr_chips               = 1,
 196                 .chip_offset            = 0,
 197                 .options                = NAND_SAMSUNG_LP_OPTIONS,
 198         },
 199         .ctrl   = {
 200                 .cmd_ctrl       = omap1_nand_cmd_ctl,
 201                 .dev_ready      = nand_dev_ready,
 202         },
 203 };
 204
 205 static struct resource nand_resource = {
 206         .start          = OMAP_CS3_PHYS,
 207         .end            = OMAP_CS3_PHYS + SZ_4K - 1,
 208         .flags          = IORESOURCE_MEM,
 209 };
 210
 211 static struct platform_device nand_device = {
 212         .name           = "gen_nand",
 213         .id             = 0,
 214         .dev            = {
 215                 .platform_data  = &nand_data,
 216         },
 217         .num_resources  = 1,
 218         .resource       = &nand_resource,
 219 };
 220
 221 static struct platform_device smc91x_device = {
 222         .name           = "smc91x",
 223         .id             = 0,
 224         .dev    = {
 225                 .platform_data  = &smc91x_info,
 226         },
 227         .num_resources  = ARRAY_SIZE(smc91x_resources),
 228         .resource       = smc91x_resources,
 229 };
 230
 231 static struct resource kp_resources[] = {
 232         [0] = {
 233                 .start  = INT_7XX_MPUIO_KEYPAD,
 234                 .end    = INT_7XX_MPUIO_KEYPAD,
 235                 .flags  = IORESOURCE_IRQ,
 236         },
 237 };
 238
 239 static const struct matrix_keymap_data fsample_keymap_data = {
 240         .keymap         = fsample_keymap,
 241         .keymap_size    = ARRAY_SIZE(fsample_keymap),
 242 };
 243
 244 static struct omap_kp_platform_data kp_data = {
 245         .rows           = 8,
 246         .cols           = 8,
 247         .keymap_data    = &fsample_keymap_data,
 248         .delay          = 4,
 249 };
 250
 251 static struct platform_device kp_device = {
 252         .name           = "omap-keypad",
 253         .id             = -1,
 254         .dev            = {
 255                 .platform_data = &kp_data,
 256         },
 257         .num_resources  = ARRAY_SIZE(kp_resources),
 258         .resource       = kp_resources,
 259 };
 260
 261 static struct platform_device *devices[] __initdata = {
 262         &nor_device,
 263         &nand_device,
 264         &smc91x_device,
 265         &kp_device,
 266 };
 267
 268 static const struct omap_lcd_config fsample_lcd_config = {
 269         .ctrl_name      = "internal",
 270 };
 271
 272 static void __init omap_fsample_init(void)
 273 {
 274         /* Early, board-dependent init */
 275
 276         /*
 277          * Hold GSM Reset until needed
 278          */
 279         omap_writew(omap_readw(OMAP7XX_DSP_M_CTL) & ~1, OMAP7XX_DSP_M_CTL);
 280
 281         /*
 282          * UARTs -> done automagically by 8250 driver
 283          */
 284
 285         /*
 286          * CSx timings, GPIO Mux ... setup
 287          */
 288
 289         /* Flash: CS0 timings setup */
 290         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_0);
 291         omap_writel(0x00000088, OMAP7XX_FLASH_ACFG_0);
 292
 293         /*
 294          * Ethernet support through the debug board
 295          * CS1 timings setup
 296          */
 297         omap_writel(0x0000fff3, OMAP7XX_FLASH_CFG_1);
 298         omap_writel(0x00000000, OMAP7XX_FLASH_ACFG_1);
 299
 300         /*
 301          * Configure MPU_EXT_NIRQ IO in IO_CONF9 register,
 302          * It is used as the Ethernet controller interrupt
 303          */
 304         omap_writel(omap_readl(OMAP7XX_IO_CONF_9) & 0x1FFFFFFF,
 305                         OMAP7XX_IO_CONF_9);
 306
 307         fsample_init_smc91x();
 308
 309         BUG_ON(gpio_request(FSAMPLE_NAND_RB_GPIO_PIN, "NAND ready") < 0);
 310         gpio_direction_input(FSAMPLE_NAND_RB_GPIO_PIN);
 311
 312         omap_cfg_reg(L3_1610_FLASH_CS2B_OE);
 313         omap_cfg_reg(M8_1610_FLASH_CS2B_WE);
 314
 315         /* Mux pins for keypad */
 316         omap_cfg_reg(E2_7XX_KBR0);
 317         omap_cfg_reg(J7_7XX_KBR1);
 318         omap_cfg_reg(E1_7XX_KBR2);
 319         omap_cfg_reg(F3_7XX_KBR3);
 320         omap_cfg_reg(D2_7XX_KBR4);
 321         omap_cfg_reg(C2_7XX_KBC0);
 322         omap_cfg_reg(D3_7XX_KBC1);
 323         omap_cfg_reg(E4_7XX_KBC2);
 324         omap_cfg_reg(F4_7XX_KBC3);
 325         omap_cfg_reg(E3_7XX_KBC4);
 326
 327         platform_add_devices(devices, ARRAY_SIZE(devices));
 328
 329         omap_serial_init();
 330         omap_register_i2c_bus(1, 100, NULL, 0);
 331
 332         omapfb_set_lcd_config(&fsample_lcd_config);
 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         omap15xx_map_io();
 354         iotable_init(omap_fsample_io_desc,
 355                      ARRAY_SIZE(omap_fsample_io_desc));
 356 }
 357
 358 MACHINE_START(OMAP_FSAMPLE, "OMAP730 F-Sample")
 359 /* Maintainer: Brian Swetland <swetland@google.com> */
 360         .atag_offset    = 0x100,
 361         .map_io         = omap_fsample_map_io,
 362         .init_early     = omap1_init_early,
 363         .init_irq       = omap1_init_irq,
 364         .handle_irq     = omap1_handle_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