arch/arm/mach-omap2/board-2430sdp.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-2430sdp.c
   3  *
   4  * Copyright (C) 2006 Texas Instruments
   5  *
   6  * Modified from mach-omap2/board-generic.c
   7  *
   8  * Initial Code : Based on a patch from Komal Shah and Richard Woodruff
   9  * Updated the Code for 2430 SDP : Syed Mohammed Khasim
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License version 2 as
  13  * published by the Free Software Foundation.
  14  */
  15
  16 #include <linux/kernel.h>
  17 #include <linux/init.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/mtd/mtd.h>
  20 #include <linux/mtd/partitions.h>
  21 #include <linux/delay.h>
  22 #include <linux/input.h>
  23 #include <linux/i2c/twl4030.h>
  24 #include <linux/err.h>
  25 #include <linux/clk.h>
  26 #include <linux/io.h>
  27 #include <linux/spi/spi.h>
  28 #include <linux/spi/ads7846.h>
  29
  30 #include <mach/hardware.h>
  31 #include <asm/mach-types.h>
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34 #include <asm/mach/flash.h>
  35
  36 #include <mach/gpio.h>
  37 #include <mach/mux.h>
  38 #include <mach/board.h>
  39 #include <mach/usb-musb.h>
  40 #include <mach/mmc.h>
  41 #include <mach/common.h>
  42 #include <mach/keypad.h>
  43 #include <mach/gpmc.h>
  44 #include <mach/mcspi.h>
  45
  46
  47 #include "mmc-twl4030.h"
  48
  49
  50 #define SDP2430_FLASH_CS        0
  51 #define SDP2430_SMC91X_CS       5
  52
  53 /* GPIO used for TSC2046 (touchscreen)
  54  *
  55  * Also note that the tsc2046 is the same silicon as the ads7846, so
  56  * that driver is used for the touchscreen. */
  57 #define TS_GPIO                 24
  58
  59 #define TWL4030_MSECURE_GPIO    118
  60 #define SECONDARY_LCD_GPIO      147
  61
  62 static struct mtd_partition sdp2430_partitions[] = {
  63         /* bootloader (U-Boot, etc) in first sector */
  64         {
  65                 .name           = "bootloader",
  66                 .offset         = 0,
  67                 .size           = SZ_256K,
  68                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  69          },
  70         /* bootloader params in the next sector */
  71         {
  72                 .name           = "params",
  73                 .offset         = MTDPART_OFS_APPEND,
  74                 .size           = SZ_128K,
  75                 .mask_flags     = 0,
  76          },
  77         /* kernel */
  78         {
  79                 .name           = "kernel",
  80                 .offset         = MTDPART_OFS_APPEND,
  81                 .size           = SZ_2M,
  82                 .mask_flags     = 0
  83         },
  84         /* file system */
  85         {
  86                 .name           = "filesystem",
  87                 .offset         = MTDPART_OFS_APPEND,
  88                 .size           = MTDPART_SIZ_FULL,
  89                 .mask_flags     = 0
  90         }
  91 };
  92
  93 static struct flash_platform_data sdp2430_flash_data = {
  94         .map_name       = "cfi_probe",
  95         .width          = 2,
  96         .parts          = sdp2430_partitions,
  97         .nr_parts       = ARRAY_SIZE(sdp2430_partitions),
  98 };
  99
 100 static struct resource sdp2430_flash_resource = {
 101         .start          = SDP2430_CS0_BASE,
 102         .end            = SDP2430_CS0_BASE + SZ_64M - 1,
 103         .flags          = IORESOURCE_MEM,
 104 };
 105
 106 static struct platform_device sdp2430_flash_device = {
 107         .name           = "omapflash",
 108         .id             = 0,
 109         .dev = {
 110                 .platform_data  = &sdp2430_flash_data,
 111         },
 112         .num_resources  = 1,
 113         .resource       = &sdp2430_flash_resource,
 114 };
 115
 116 static struct resource sdp2430_smc91x_resources[] = {
 117         [0] = {
 118                 .start  = SDP2430_CS0_BASE,
 119                 .end    = SDP2430_CS0_BASE + SZ_64M - 1,
 120                 .flags  = IORESOURCE_MEM,
 121         },
 122         [1] = {
 123                 .start  = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 124                 .end    = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 125                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
 126         },
 127 };
 128
 129 static struct platform_device sdp2430_lcd_device = {
 130         .name           = "sdp2430_lcd",
 131         .id             = -1,
 132 };
 133
 134 static struct platform_device sdp2430_smc91x_device = {
 135         .name           = "smc91x",
 136         .id             = -1,
 137         .num_resources  = ARRAY_SIZE(sdp2430_smc91x_resources),
 138         .resource       = sdp2430_smc91x_resources,
 139 };
 140
 141 /*
 142  * Key mapping for 2430 SDP board
 143  */
 144
 145 static int sdp2430_keymap[] = {
 146         KEY(0, 0, KEY_LEFT),
 147         KEY(0, 1, KEY_RIGHT),
 148         KEY(0, 2, KEY_A),
 149         KEY(0, 3, KEY_B),
 150         KEY(0, 4, KEY_C),
 151         KEY(1, 0, KEY_DOWN),
 152         KEY(1, 1, KEY_UP),
 153         KEY(1, 2, KEY_E),
 154         KEY(1, 3, KEY_F),
 155         KEY(1, 4, KEY_G),
 156         KEY(2, 0, KEY_ENTER),
 157         KEY(2, 1, KEY_I),
 158         KEY(2, 2, KEY_J),
 159         KEY(2, 3, KEY_K),
 160         KEY(2, 4, KEY_3),
 161         KEY(3, 0, KEY_M),
 162         KEY(3, 1, KEY_N),
 163         KEY(3, 2, KEY_O),
 164         KEY(3, 3, KEY_P),
 165         KEY(3, 4, KEY_Q),
 166         KEY(4, 0, KEY_R),
 167         KEY(4, 1, KEY_4),
 168         KEY(4, 2, KEY_T),
 169         KEY(4, 3, KEY_U),
 170         KEY(4, 4, KEY_D),
 171         KEY(5, 0, KEY_V),
 172         KEY(5, 1, KEY_W),
 173         KEY(5, 2, KEY_L),
 174         KEY(5, 3, KEY_S),
 175         KEY(5, 4, KEY_H),
 176         0
 177 };
 178
 179 static struct twl4030_keypad_data sdp2430_kp_data = {
 180         .rows           = 5,
 181         .cols           = 6,
 182         .keymap         = sdp2430_keymap,
 183         .keymapsize     = ARRAY_SIZE(sdp2430_keymap),
 184         .rep            = 1,
 185 };
 186
 187 static int __init msecure_init(void)
 188 {
 189         int ret = 0;
 190
 191 #ifdef CONFIG_RTC_DRV_TWL4030
 192         ret = gpio_request(TWL4030_MSECURE_GPIO, "msecure");
 193         if (ret < 0) {
 194                 printk(KERN_ERR "msecure_init: can't reserve GPIO:%d !\n",
 195                         TWL4030_MSECURE_GPIO);
 196                 goto out;
 197         }
 198         /*
 199          * TWL4030 will be in secure mode if msecure line from OMAP is low.
 200          * Make msecure line high in order to change the TWL4030 RTC time
 201          * and calender registers.
 202          */
 203         gpio_direction_output(TWL4030_MSECURE_GPIO, 1);
 204 out:
 205 #endif
 206
 207         return ret;
 208 }
 209
 210 static struct platform_device *sdp2430_devices[] __initdata = {
 211         &sdp2430_smc91x_device,
 212         &sdp2430_flash_device,
 213         &sdp2430_lcd_device,
 214 };
 215
 216 static void ads7846_dev_init(void)
 217 {
 218         if (omap_request_gpio(TS_GPIO) < 0)
 219                 printk(KERN_ERR "can't get ads746 pen down GPIO\n");
 220
 221         gpio_direction_input(TS_GPIO);
 222
 223         omap_set_gpio_debounce(TS_GPIO, 1);
 224         omap_set_gpio_debounce_time(TS_GPIO, 0xa);
 225 }
 226
 227 static int ads7846_get_pendown_state(void)
 228 {
 229         return !gpio_get_value(TS_GPIO);
 230 }
 231
 232 static struct ads7846_platform_data tsc2046_config __initdata = {
 233         .get_pendown_state = ads7846_get_pendown_state,
 234         .keep_vref_on      = 1,
 235 };
 236
 237 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
 238         .turbo_mode     = 0,
 239         .single_channel = 0,  /* 0: slave, 1: master */
 240 };
 241
 242 static struct omap_lcd_config sdp2430_lcd_config __initdata = {
 243         .ctrl_name      = "internal",
 244 };
 245
 246 static struct spi_board_info sdp2430_spi_board_info[] __initdata = {
 247         [0] = {
 248                 /*
 249                  * TSC2046 operates at a max freqency of 2MHz, so
 250                  * operate slightly below at 1.5MHz
 251                  */
 252                 .modalias        = "ads7846",
 253                 .bus_num         = 1,
 254                 .chip_select     = 0,
 255                 .max_speed_hz    = 1500000,
 256                 .controller_data = &tsc2046_mcspi_config,
 257                 .irq             = OMAP_GPIO_IRQ(TS_GPIO),
 258                 .platform_data   = &tsc2046_config,
 259         },
 260 };
 261
 262 static inline void __init sdp2430_init_smc91x(void)
 263 {
 264         int eth_cs;
 265         unsigned long cs_mem_base;
 266         unsigned int rate;
 267         struct clk *gpmc_fck;
 268
 269         eth_cs = SDP2430_SMC91X_CS;
 270
 271         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
 272         if (IS_ERR(gpmc_fck)) {
 273                 WARN_ON(1);
 274                 return;
 275         }
 276
 277         clk_enable(gpmc_fck);
 278         rate = clk_get_rate(gpmc_fck);
 279
 280         /* Make sure CS1 timings are correct, for 2430 always muxed */
 281         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
 282
 283         if (rate >= 160000000) {
 284                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 285                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 286                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 287                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 288                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 289         } else if (rate >= 130000000) {
 290                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 291                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 292                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 293                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 294                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 295         } else { /* rate = 100000000 */
 296                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 297                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 298                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 299                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 300                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 301         }
 302
 303         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 304                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 305                 goto out;
 306         }
 307
 308         sdp2430_smc91x_resources[0].start = cs_mem_base + 0x300;
 309         sdp2430_smc91x_resources[0].end = cs_mem_base + 0x30f;
 310         udelay(100);
 311
 312         if (gpio_request(OMAP24XX_ETHR_GPIO_IRQ, "SMC91x irq") < 0) {
 313                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 314                         OMAP24XX_ETHR_GPIO_IRQ);
 315                 gpmc_cs_free(eth_cs);
 316                 goto out;
 317         }
 318         gpio_direction_input(OMAP24XX_ETHR_GPIO_IRQ);
 319
 320 out:
 321         clk_disable(gpmc_fck);
 322         clk_put(gpmc_fck);
 323 }
 324
 325 static void __init omap_2430sdp_init_irq(void)
 326 {
 327         omap2_init_common_hw(NULL);
 328         omap_init_irq();
 329         omap_gpio_init();
 330         sdp2430_init_smc91x();
 331 }
 332
 333 static struct omap_uart_config sdp2430_uart_config __initdata = {
 334         .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
 335 };
 336
 337 static
 338 struct omap_serial_console_config sdp2430_serial_console_config __initdata = {
 339         .console_uart = 1,
 340         .console_speed = 115200,
 341 };
 342
 343 static struct omap_board_config_kernel sdp2430_config[] __initdata = {
 344         {OMAP_TAG_UART, &sdp2430_uart_config},
 345         {OMAP_TAG_LCD, &sdp2430_lcd_config},
 346         {OMAP_TAG_SERIAL_CONSOLE, &sdp2430_serial_console_config},
 347 };
 348
 349
 350 static struct twl4030_gpio_platform_data sdp2430_gpio_data = {
 351         .gpio_base      = OMAP_MAX_GPIO_LINES,
 352         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 353         .irq_end        = TWL4030_GPIO_IRQ_END,
 354 };
 355
 356 static struct twl4030_usb_data sdp2430_usb_data = {
 357         .usb_mode       = T2_USB_MODE_ULPI,
 358 };
 359
 360 static struct twl4030_madc_platform_data sdp2430_madc_data = {
 361         .irq_line       = 1,
 362 };
 363
 364 static struct twl4030_platform_data sdp2430_twldata = {
 365         .irq_base       = TWL4030_IRQ_BASE,
 366         .irq_end        = TWL4030_IRQ_END,
 367
 368         /* platform_data for children goes here */
 369         .gpio           = &sdp2430_gpio_data,
 370         .madc           = &sdp2430_madc_data,
 371         .keypad         = &sdp2430_kp_data,
 372         .usb            = &sdp2430_usb_data,
 373 };
 374
 375 static struct i2c_board_info __initdata sdp2430_i2c_boardinfo[] = {
 376         {
 377                 I2C_BOARD_INFO("twl4030", 0x48),
 378                 .flags = I2C_CLIENT_WAKE,
 379                 .irq = INT_24XX_SYS_NIRQ,
 380                 .platform_data = &sdp2430_twldata,
 381         },
 382 };
 383
 384 static int __init omap2430_i2c_init(void)
 385 {
 386         omap_register_i2c_bus(1, 400, NULL, 0);
 387         omap_register_i2c_bus(2, 2600, sdp2430_i2c_boardinfo,
 388                         ARRAY_SIZE(sdp2430_i2c_boardinfo));
 389         return 0;
 390 }
 391
 392 static struct twl4030_hsmmc_info mmc[] __initdata = {
 393         {
 394                 .mmc            = 1,
 395                 .wires          = 4,
 396                 .gpio_cd        = -EINVAL,
 397                 .gpio_wp        = -EINVAL,
 398                 .ext_clock      = 1,
 399         },
 400         {}      /* Terminator */
 401 };
 402
 403 static void __init omap_2430sdp_init(void)
 404 {
 405         omap2430_i2c_init();
 406
 407         platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
 408         omap_board_config = sdp2430_config;
 409         omap_board_config_size = ARRAY_SIZE(sdp2430_config);
 410         omap_serial_init();
 411
 412         msecure_init();
 413
 414         sdp2430_flash_init();
 415         usb_musb_init();
 416
 417         spi_register_board_info(sdp2430_spi_board_info,
 418                                 ARRAY_SIZE(sdp2430_spi_board_info));
 419         ads7846_dev_init();
 420         hsmmc_init(mmc);
 421
 422         /* turn off secondary LCD backlight */
 423         gpio_direction_output(SECONDARY_LCD_GPIO, 0);
 424 }
 425
 426 static void __init omap_2430sdp_map_io(void)
 427 {
 428         omap2_set_globals_243x();
 429         omap2_map_common_io();
 430 }
 431
 432 MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
 433         /* Maintainer: Syed Khasim - Texas Instruments Inc */
 434         .phys_io        = 0x48000000,
 435         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 436         .boot_params    = 0x80000100,
 437         .map_io         = omap_2430sdp_map_io,
 438         .init_irq       = omap_2430sdp_init_irq,
 439         .init_machine   = omap_2430sdp_init,
 440         .timer          = &omap_timer,
 441 MACHINE_END