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/err.h>
  24 #include <linux/clk.h>
  25 #include <linux/spi/spi.h>
  26 #include <linux/spi/tsc2046.h>
  27
  28 #include <asm/hardware.h>
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32 #include <asm/mach/flash.h>
  33
  34 #include <asm/arch/gpio.h>
  35 #include <asm/arch/mux.h>
  36 #include <asm/arch/board.h>
  37 #include <asm/arch/common.h>
  38 #include <asm/arch/keypad.h>
  39 #include <asm/arch/gpmc.h>
  40 #include <asm/arch/mcspi.h>
  41 #include "prcm-regs.h"
  42
  43 #include <asm/io.h>
  44
  45 #define SDP2430_FLASH_CS        0
  46 #define SDP2430_SMC91X_CS       5
  47
  48 /* TSC2046 (touchscreen) */
  49 #define TS_GPIO                 24
  50
  51 static struct mtd_partition sdp2430_partitions[] = {
  52         /* bootloader (U-Boot, etc) in first sector */
  53         {
  54                 .name           = "bootloader",
  55                 .offset         = 0,
  56                 .size           = SZ_256K,
  57                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  58          },
  59         /* bootloader params in the next sector */
  60         {
  61                 .name           = "params",
  62                 .offset         = MTDPART_OFS_APPEND,
  63                 .size           = SZ_128K,
  64                 .mask_flags     = 0,
  65          },
  66         /* kernel */
  67         {
  68                 .name           = "kernel",
  69                 .offset         = MTDPART_OFS_APPEND,
  70                 .size           = SZ_2M,
  71                 .mask_flags     = 0
  72         },
  73         /* file system */
  74         {
  75                 .name           = "filesystem",
  76                 .offset         = MTDPART_OFS_APPEND,
  77                 .size           = MTDPART_SIZ_FULL,
  78                 .mask_flags     = 0
  79         }
  80 };
  81
  82 static struct flash_platform_data sdp2430_flash_data = {
  83         .map_name       = "cfi_probe",
  84         .width          = 2,
  85         .parts          = sdp2430_partitions,
  86         .nr_parts       = ARRAY_SIZE(sdp2430_partitions),
  87 };
  88
  89 static struct resource sdp2430_flash_resource = {
  90         .start          = SDP2430_CS0_BASE,
  91         .end            = SDP2430_CS0_BASE + SZ_64M - 1,
  92         .flags          = IORESOURCE_MEM,
  93 };
  94
  95 static struct platform_device sdp2430_flash_device = {
  96         .name           = "omapflash",
  97         .id             = 0,
  98         .dev = {
  99                 .platform_data  = &sdp2430_flash_data,
 100         },
 101         .num_resources  = 1,
 102         .resource       = &sdp2430_flash_resource,
 103 };
 104
 105 static struct resource sdp2430_smc91x_resources[] = {
 106         [0] = {
 107                 .start  = SDP2430_CS0_BASE,
 108                 .end    = SDP2430_CS0_BASE + SZ_64M - 1,
 109                 .flags  = IORESOURCE_MEM,
 110         },
 111         [1] = {
 112                 .start  = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 113                 .end    = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
 114                 .flags  = IORESOURCE_IRQ,
 115         },
 116 };
 117
 118 static struct platform_device sdp2430_smc91x_device = {
 119         .name           = "smc91x",
 120         .id             = -1,
 121         .num_resources  = ARRAY_SIZE(sdp2430_smc91x_resources),
 122         .resource       = sdp2430_smc91x_resources,
 123 };
 124
 125 /*
 126  * Key mapping for 2430 SDP board
 127  */
 128
 129 static int sdp2430_keymap[] = {
 130         KEY(0, 0, KEY_LEFT),
 131         KEY(0, 1, KEY_RIGHT),
 132         KEY(0, 2, KEY_A),
 133         KEY(0, 3, KEY_B),
 134         KEY(0, 4, KEY_C),
 135         KEY(1, 0, KEY_DOWN),
 136         KEY(1, 1, KEY_UP),
 137         KEY(1, 2, KEY_E),
 138         KEY(1, 3, KEY_F),
 139         KEY(1, 4, KEY_G),
 140         KEY(2, 0, KEY_ENTER),
 141         KEY(2, 1, KEY_I),
 142         KEY(2, 2, KEY_J),
 143         KEY(2, 3, KEY_K),
 144         KEY(2, 4, KEY_3),
 145         KEY(3, 0, KEY_M),
 146         KEY(3, 1, KEY_N),
 147         KEY(3, 2, KEY_O),
 148         KEY(3, 3, KEY_P),
 149         KEY(3, 4, KEY_Q),
 150         KEY(4, 0, KEY_R),
 151         KEY(4, 1, KEY_4),
 152         KEY(4, 2, KEY_T),
 153         KEY(4, 3, KEY_U),
 154         KEY(4, 4, KEY_D),
 155         KEY(5, 0, KEY_V),
 156         KEY(5, 1, KEY_W),
 157         KEY(5, 2, KEY_L),
 158         KEY(5, 3, KEY_S),
 159         KEY(5, 4, KEY_H),
 160         0
 161 };
 162
 163 static struct omap_kp_platform_data sdp2430_kp_data = {
 164         .rows           = 5,
 165         .cols           = 6,
 166         .keymap         = sdp2430_keymap,
 167         .keymapsize     = ARRAY_SIZE(sdp2430_keymap),
 168         .rep            = 1,
 169 };
 170
 171 static struct platform_device sdp2430_kp_device = {
 172         .name           = "omap_twl4030keypad",
 173         .id             = -1,
 174         .dev            = {
 175                 .platform_data  = &sdp2430_kp_data,
 176         },
 177 };
 178
 179 static struct platform_device *sdp2430_devices[] __initdata = {
 180         &sdp2430_smc91x_device,
 181         &sdp2430_flash_device,
 182         &sdp2430_kp_device,
 183 };
 184
 185 static struct tsc2046_platform_data tsc2046_config = {
 186         .dav_gpio       = TS_GPIO,
 187         .gpio_debounce  = 0xa,
 188 };
 189
 190 static struct omap2_mcspi_device_config tsc2046_mcspi_config = {
 191         .turbo_mode     = 0,
 192         .single_channel = 0,  /* 0: slave, 1: master */
 193 };
 194
 195 static struct spi_board_info sdp2430_spi_board_info[] __initdata = {
 196         [0] = {
 197                 /*
 198                  * TSC2046 operates at a max freqency of 2MHz, so
 199                  * operate slightly below at 1.5MHz
 200                  */
 201                 .modalias        = "tsc2046",
 202                 .bus_num         = 1,
 203                 .chip_select     = 0,
 204                 .max_speed_hz    = 1500000,
 205                 .controller_data = &tsc2046_mcspi_config,
 206                 .platform_data   = &tsc2046_config,
 207         },
 208 };
 209
 210 static inline void __init sdp2430_init_smc91x(void)
 211 {
 212         int eth_cs;
 213         unsigned long cs_mem_base;
 214         unsigned int rate;
 215         struct clk *l3ck;
 216
 217         eth_cs = SDP2430_SMC91X_CS;
 218
 219         l3ck = clk_get(NULL, "core_l3_ck");
 220         if (IS_ERR(l3ck))
 221                 rate = 100000000;
 222         else
 223                 rate = clk_get_rate(l3ck);
 224
 225         /* Make sure CS1 timings are correct, for 2430 always muxed */
 226         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
 227
 228         if (rate >= 160000000) {
 229                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 230                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 231                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 232                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 233                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 234         } else if (rate >= 130000000) {
 235                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 236                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 237                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 238                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 239                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 240         } else { /* rate = 100000000 */
 241                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 242                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 243                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 244                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 245                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 246         }
 247
 248         if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
 249                 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
 250                 return;
 251         }
 252
 253         sdp2430_smc91x_resources[0].start = cs_mem_base + 0x300;
 254         sdp2430_smc91x_resources[0].end = cs_mem_base + 0x30f;
 255         udelay(100);
 256
 257         if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) {
 258                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 259                         OMAP24XX_ETHR_GPIO_IRQ);
 260                 gpmc_cs_free(eth_cs);
 261                 return;
 262         }
 263         omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1);
 264
 265 }
 266
 267 static void __init omap_2430sdp_init_irq(void)
 268 {
 269         omap2_init_common_hw();
 270         omap_init_irq();
 271         omap_gpio_init();
 272         sdp2430_init_smc91x();
 273 }
 274
 275 static struct omap_uart_config sdp2430_uart_config __initdata = {
 276         .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
 277 };
 278
 279 static struct omap_board_config_kernel sdp2430_config[] = {
 280         {OMAP_TAG_UART, &sdp2430_uart_config},
 281 };
 282
 283 #if     defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE)
 284
 285 #define OMAP2_I2C_BASE1         0x48070000
 286 #define OMAP2_I2C_BASE2         0x48072000
 287 #define OMAP2_I2C_INT1          56
 288 #define OMAP2_I2C_INT2          57
 289
 290 static u32 omap2_i2c1_clkrate   = 400;
 291 static u32 omap2_i2c2_clkrate   = 2600;
 292
 293 static struct resource i2c_resources1[] = {
 294         {
 295                 .start  = OMAP2_I2C_BASE1,
 296                 .end    = OMAP2_I2C_BASE1 + 0x3f,
 297                 .flags  = IORESOURCE_MEM,
 298         },
 299         {
 300                 .start  = OMAP2_I2C_INT1,
 301                 .flags  = IORESOURCE_IRQ,
 302         },
 303 };
 304
 305 static struct resource i2c_resources2[] = {
 306         {
 307                 .start  = OMAP2_I2C_BASE2,
 308                 .end    = OMAP2_I2C_BASE2 + 0x3f,
 309                 .flags  = IORESOURCE_MEM,
 310         },
 311         {
 312                 .start  = OMAP2_I2C_INT2,
 313                 .flags  = IORESOURCE_IRQ,
 314         },
 315 };
 316
 317 static struct platform_device omap_i2c_device1 = {
 318         .name           = "i2c_omap",
 319         .id             = 1,
 320         .num_resources  = ARRAY_SIZE(i2c_resources1),
 321         .resource       = i2c_resources1,
 322         .dev            = {
 323                 .platform_data  = &omap2_i2c1_clkrate,
 324         },
 325 };
 326
 327 static struct platform_device omap_i2c_device2 = {
 328         .name           = "i2c_omap",
 329         .id             = 2,
 330         .num_resources  = ARRAY_SIZE(i2c_resources2),
 331         .resource       = i2c_resources2,
 332         .dev            = {
 333                 .platform_data  = &omap2_i2c2_clkrate,
 334         },
 335 };
 336
 337 static void omap_init_i2c(void)
 338 {
 339         (void) platform_device_register(&omap_i2c_device2);
 340         (void) platform_device_register(&omap_i2c_device1);
 341 }
 342
 343 #else
 344
 345 static void omap_init_i2c(void) {}
 346
 347 #endif
 348
 349 static int __init omap2430_i2c_init(void)
 350 {
 351         omap_init_i2c();
 352         return 0;
 353 }
 354
 355 extern void __init sdp2430_flash_init(void);
 356 extern void __init sdp2430_usb_init(void);
 357
 358 static void __init omap_2430sdp_init(void)
 359 {
 360         platform_add_devices(sdp2430_devices, ARRAY_SIZE(sdp2430_devices));
 361         omap_board_config = sdp2430_config;
 362         omap_board_config_size = ARRAY_SIZE(sdp2430_config);
 363         omap_serial_init();
 364
 365         sdp2430_flash_init();
 366         sdp2430_usb_init();
 367
 368         spi_register_board_info(sdp2430_spi_board_info,
 369                                 ARRAY_SIZE(sdp2430_spi_board_info));
 370 }
 371
 372 static void __init omap_2430sdp_map_io(void)
 373 {
 374         omap2_map_common_io();
 375 }
 376
 377 arch_initcall(omap2430_i2c_init);
 378
 379 MACHINE_START(OMAP_2430SDP, "OMAP2430 sdp2430 board")
 380         /* Maintainer: Syed Khasim - Texas Instruments Inc */
 381         .phys_io        = 0x48000000,
 382         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 383         .boot_params    = 0x80000100,
 384         .map_io         = omap_2430sdp_map_io,
 385         .init_irq       = omap_2430sdp_init_irq,
 386         .init_machine   = omap_2430sdp_init,
 387         .timer          = &omap_timer,
 388 MACHINE_END