arch/arm/mach-omap2/board-apollon.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-apollon.c
   3  *
   4  * Copyright (C) 2005,2006 Samsung Electronics
   5  * Author: Kyungmin Park <kyungmin.park@samsung.com>
   6  *
   7  * Modified from mach-omap2/board-h4.c
   8  *
   9  * Code for apollon OMAP2 board. Should work on many OMAP2 systems where
  10  * the bootloader passes the board-specific data to the kernel.
  11  * Do not put any board specific code to this file; create a new machine
  12  * type if you need custom low-level initializations.
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License version 2 as
  16  * published by the Free Software Foundation.
  17  */
  18
  19 #include <linux/kernel.h>
  20 #include <linux/init.h>
  21 #include <linux/platform_device.h>
  22 #include <linux/mtd/mtd.h>
  23 #include <linux/mtd/partitions.h>
  24 #include <linux/mtd/onenand.h>
  25 #include <linux/delay.h>
  26 #include <linux/leds.h>
  27 #include <linux/err.h>
  28 #include <linux/clk.h>
  29 #include <linux/spi/spi.h>
  30 #include <linux/spi/tsc210x.h>
  31
  32 #include <asm/hardware.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/flash.h>
  36
  37 #include <asm/arch/gpio.h>
  38 #include <asm/arch/led.h>
  39 #include <asm/arch/mux.h>
  40 #include <asm/arch/usb.h>
  41 #include <asm/arch/board.h>
  42 #include <asm/arch/common.h>
  43 #include <asm/arch/gpmc.h>
  44
  45 /* LED & Switch macros */
  46 #define LED0_GPIO13             13
  47 #define LED1_GPIO14             14
  48 #define LED2_GPIO15             15
  49 #define LED3_GPIO92             92
  50 #define LED4_GPIO93             93
  51
  52 #define APOLLON_FLASH_CS        0
  53 #define APOLLON_ETH_CS          1
  54
  55 static struct mtd_partition apollon_partitions[] = {
  56         {
  57                 .name           = "X-Loader + U-Boot",
  58                 .offset         = 0,
  59                 .size           = SZ_128K,
  60                 .mask_flags     = MTD_WRITEABLE,
  61         },
  62         {
  63                 .name           = "params",
  64                 .offset         = MTDPART_OFS_APPEND,
  65                 .size           = SZ_128K,
  66         },
  67         {
  68                 .name           = "kernel",
  69                 .offset         = MTDPART_OFS_APPEND,
  70                 .size           = SZ_2M,
  71         },
  72         {
  73                 .name           = "rootfs",
  74                 .offset         = MTDPART_OFS_APPEND,
  75                 .size           = SZ_16M,
  76         },
  77         {
  78                 .name           = "filesystem00",
  79                 .offset         = MTDPART_OFS_APPEND,
  80                 .size           = SZ_32M,
  81         },
  82         {
  83                 .name           = "filesystem01",
  84                 .offset         = MTDPART_OFS_APPEND,
  85                 .size           = MTDPART_SIZ_FULL,
  86         },
  87 };
  88
  89 static struct flash_platform_data apollon_flash_data = {
  90         .parts          = apollon_partitions,
  91         .nr_parts       = ARRAY_SIZE(apollon_partitions),
  92 };
  93
  94 static struct resource apollon_flash_resource[] = {
  95         [0] = {
  96                 .flags          = IORESOURCE_MEM,
  97         },
  98 };
  99
 100 static struct platform_device apollon_onenand_device = {
 101         .name           = "onenand",
 102         .id             = -1,
 103         .dev            = {
 104                 .platform_data  = &apollon_flash_data,
 105         },
 106         .num_resources  = ARRAY_SIZE(apollon_flash_resource),
 107         .resource       = apollon_flash_resource,
 108 };
 109
 110 static void __init apollon_flash_init(void)
 111 {
 112         unsigned long base;
 113
 114         if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) {
 115                 printk(KERN_ERR "Cannot request OneNAND GPMC CS\n");
 116                 return;
 117         }
 118         apollon_flash_resource[0].start = base;
 119         apollon_flash_resource[0].end   = base + SZ_128K - 1;
 120 }
 121
 122 static struct resource apollon_smc91x_resources[] = {
 123         [0] = {
 124                 .flags  = IORESOURCE_MEM,
 125         },
 126         [1] = {
 127                 .start  = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
 128                 .end    = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
 129                 .flags  = IORESOURCE_IRQ,
 130         },
 131 };
 132
 133 static struct platform_device apollon_smc91x_device = {
 134         .name           = "smc91x",
 135         .id             = -1,
 136         .num_resources  = ARRAY_SIZE(apollon_smc91x_resources),
 137         .resource       = apollon_smc91x_resources,
 138 };
 139
 140 static struct platform_device apollon_lcd_device = {
 141         .name           = "apollon_lcd",
 142         .id             = -1,
 143 };
 144
 145 static struct omap_led_config apollon_led_config[] = {
 146         {
 147                 .cdev   = {
 148                         .name   = "apollon:led0",
 149                 },
 150                 .gpio   = LED0_GPIO13,
 151         },
 152         {
 153                 .cdev   = {
 154                         .name   = "apollon:led1",
 155                 },
 156                 .gpio   = LED1_GPIO14,
 157         },
 158         {
 159                 .cdev   = {
 160                         .name   = "apollon:led2",
 161                 },
 162                 .gpio   = LED2_GPIO15,
 163         },
 164 #ifdef CONFIG_MACH_OMAP_APOLLON_PLUS
 165         {
 166                 .cdev   = {
 167                         .name   = "apollon:led3",
 168                 },
 169                 .gpio   = LED3_GPIO92,
 170         },
 171         {
 172                 .cdev   = {
 173                         .name   = "apollon:led4",
 174                 },
 175                 .gpio   = LED4_GPIO93,
 176         },
 177 #endif
 178 };
 179
 180 static struct omap_led_platform_data apollon_led_data = {
 181         .nr_leds        = ARRAY_SIZE(apollon_led_config),
 182         .leds           = apollon_led_config,
 183 };
 184
 185 static struct platform_device apollon_led_device = {
 186         .name           = "omap-led",
 187         .id             = -1,
 188         .dev            = {
 189                 .platform_data  = &apollon_led_data,
 190         },
 191 };
 192
 193 static struct platform_device *apollon_devices[] __initdata = {
 194         &apollon_onenand_device,
 195         &apollon_smc91x_device,
 196         &apollon_lcd_device,
 197         &apollon_led_device,
 198 };
 199
 200 static inline void __init apollon_init_smc91x(void)
 201 {
 202         unsigned long base;
 203         unsigned int rate;
 204         struct clk *l3ck;
 205         int eth_cs;
 206
 207         l3ck = clk_get(NULL, "core_l3_ck");
 208         if (IS_ERR(l3ck))
 209                 rate = 100000000;
 210         else
 211                 rate = clk_get_rate(l3ck);
 212
 213         eth_cs = APOLLON_ETH_CS;
 214
 215         /* Make sure CS1 timings are correct */
 216         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
 217
 218         if (rate >= 160000000) {
 219                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 220                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 221                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 222                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 223                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 224         } else if (rate >= 130000000) {
 225                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 226                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 227                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 228                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 229                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 230         } else {/* rate = 100000000 */
 231                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 232                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 233                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 234                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 235                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 236         }
 237
 238         if (gpmc_cs_request(eth_cs, SZ_16M, &base) < 0) {
 239                 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
 240                 return;
 241         }
 242         apollon_smc91x_resources[0].start = base + 0x300;
 243         apollon_smc91x_resources[0].end   = base + 0x30f;
 244         udelay(100);
 245
 246         omap_cfg_reg(W4__24XX_GPIO74);
 247         if (omap_request_gpio(APOLLON_ETHR_GPIO_IRQ) < 0) {
 248                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 249                         APOLLON_ETHR_GPIO_IRQ);
 250                 gpmc_cs_free(eth_cs);
 251                 return;
 252         }
 253         omap_set_gpio_direction(APOLLON_ETHR_GPIO_IRQ, 1);
 254 }
 255
 256 static void __init omap_apollon_init_irq(void)
 257 {
 258         omap2_init_common_hw();
 259         omap_init_irq();
 260         omap_gpio_init();
 261         apollon_init_smc91x();
 262 }
 263
 264 static struct tsc210x_config tsc_platform_data = {
 265         .use_internal           = 1,
 266         .monitor                = TSC_TEMP,
 267         .mclk                   = "sys_clkout",
 268 };
 269
 270 static struct spi_board_info apollon_spi_board_info[] = {
 271         [0] = {
 272                 .modalias       = "tsc2101",
 273                 .irq            = OMAP_GPIO_IRQ(85),
 274                 .bus_num        = 1,
 275                 .chip_select    = 0,
 276                 .mode           = SPI_MODE_1,
 277                 .max_speed_hz   = 6000000,
 278                 .platform_data  = &tsc_platform_data,
 279         },
 280 };
 281
 282 static struct omap_uart_config apollon_uart_config __initdata = {
 283         .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2),
 284 };
 285
 286 /*
 287  * Note: If you want to detect card feature, please assign GPIO 37
 288  */
 289 static struct omap_mmc_config apollon_mmc_config __initdata = {
 290         .mmc [0] = {
 291                 .enabled        = 1,
 292                 .wire4          = 1,
 293         /* Use internal loop-back in MMC/SDIO Module Input Clock selection */
 294                 .internal_clock = 1,
 295         },
 296 };
 297
 298 static struct omap_usb_config apollon_usb_config __initdata = {
 299         .register_dev   = 1,
 300         .hmc_mode       = 0x14, /* 0:dev 1:host1 2:disable */
 301
 302         .pins[0]        = 6,
 303 };
 304
 305 static struct omap_lcd_config apollon_lcd_config __initdata = {
 306         .ctrl_name      = "internal",
 307 };
 308
 309 static struct omap_board_config_kernel apollon_config[] __initdata = {
 310         { OMAP_TAG_UART,        &apollon_uart_config },
 311         { OMAP_TAG_MMC,         &apollon_mmc_config },
 312         { OMAP_TAG_USB,         &apollon_usb_config },
 313         { OMAP_TAG_LCD,         &apollon_lcd_config },
 314 };
 315
 316 static void __init apollon_led_init(void)
 317 {
 318         /* LED0 - AA10 */
 319         omap_cfg_reg(AA10_242X_GPIO13);
 320         omap_request_gpio(LED0_GPIO13);
 321         omap_set_gpio_direction(LED0_GPIO13, 0);
 322         omap_set_gpio_dataout(LED0_GPIO13, 0);
 323         /* LED1  - AA6 */
 324         omap_cfg_reg(AA6_242X_GPIO14);
 325         omap_request_gpio(LED1_GPIO14);
 326         omap_set_gpio_direction(LED1_GPIO14, 0);
 327         omap_set_gpio_dataout(LED1_GPIO14, 0);
 328         /* LED2  - AA4 */
 329         omap_cfg_reg(AA4_242X_GPIO15);
 330         omap_request_gpio(LED2_GPIO15);
 331         omap_set_gpio_direction(LED2_GPIO15, 0);
 332         omap_set_gpio_dataout(LED2_GPIO15, 0);
 333 #ifdef CONFIG_MACH_OMAP_APOLLON_PLUS
 334         /* LED3 - M15 */
 335         omap_cfg_reg(M15_24XX_GPIO92);
 336         omap_request_gpio(LED3_GPIO92);
 337         omap_set_gpio_direction(LED3_GPIO92, 0);
 338         omap_set_gpio_dataout(LED3_GPIO92, 0);
 339         /* LED4 - P20 */
 340         omap_cfg_reg(P20_24XX_GPIO93);
 341         omap_request_gpio(LED4_GPIO93);
 342         omap_set_gpio_direction(LED4_GPIO93, 0);
 343         omap_set_gpio_dataout(LED4_GPIO93, 0);
 344 #endif
 345 }
 346
 347 static void __init apollon_usb_init(void)
 348 {
 349         /* USB device */
 350         /* DEVICE_SUSPEND */
 351         omap_cfg_reg(P21_242X_GPIO12);
 352         omap_request_gpio(12);
 353         omap_set_gpio_direction(12, 0);         /* OUT */
 354         omap_set_gpio_dataout(12, 0);
 355 }
 356
 357 static void __init apollon_tsc_init(void)
 358 {
 359         /* TSC2101 */
 360         omap_cfg_reg(N15_24XX_GPIO85);
 361         omap_request_gpio(85);
 362         omap_set_gpio_direction(85, 1);
 363
 364         omap_cfg_reg(W14_24XX_SYS_CLKOUT);      /* mclk */
 365 }
 366
 367 static void __init omap_apollon_init(void)
 368 {
 369         apollon_led_init();
 370         apollon_flash_init();
 371         apollon_usb_init();
 372         apollon_tsc_init();
 373
 374         /*
 375          * Make sure the serial ports are muxed on at this point.
 376          * You have to mux them off in device drivers later on
 377          * if not needed.
 378          */
 379         platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
 380         omap_board_config = apollon_config;
 381         omap_board_config_size = ARRAY_SIZE(apollon_config);
 382         omap_serial_init();
 383         omap_register_i2c_bus(1, 100, NULL, 0);
 384         omap_register_i2c_bus(2, 100, NULL, 0);
 385
 386         spi_register_board_info(apollon_spi_board_info,
 387                                 ARRAY_SIZE(apollon_spi_board_info));
 388
 389         apollon_mmc_init();
 390 }
 391
 392 static void __init omap_apollon_map_io(void)
 393 {
 394         omap2_set_globals_242x();
 395         omap2_map_common_io();
 396 }
 397
 398 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
 399         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
 400         .phys_io        = 0x48000000,
 401         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 402         .boot_params    = 0x80000100,
 403         .map_io         = omap_apollon_map_io,
 404         .init_irq       = omap_apollon_init_irq,
 405         .init_machine   = omap_apollon_init,
 406         .timer          = &omap_timer,
 407 MACHINE_END