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

   1 /*
   2  * linux/arch/arm/mach-omap2/board-apollon.c
   3  *
   4  * Copyright (C) 2005-2008 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/irq.h>
  26 #include <linux/interrupt.h>
  27 #include <linux/delay.h>
  28 #include <linux/leds.h>
  29 #include <linux/err.h>
  30 #include <linux/clk.h>
  31 #include <linux/spi/spi.h>
  32 #include <linux/spi/tsc210x.h>
  33
  34 #include <asm/io.h>
  35 #include <asm/hardware.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/flash.h>
  39
  40 #include <asm/arch/gpio.h>
  41 #include <asm/arch/led.h>
  42 #include <asm/arch/mux.h>
  43 #include <asm/arch/usb.h>
  44 #include <asm/arch/board.h>
  45 #include <asm/arch/common.h>
  46 #include <asm/arch/gpmc.h>
  47
  48 /* LED & Switch macros */
  49 #define LED0_GPIO13             13
  50 #define LED1_GPIO14             14
  51 #define LED2_GPIO15             15
  52 #define LED3_GPIO92             92
  53 #define LED4_GPIO93             93
  54
  55 #define APOLLON_FLASH_CS        0
  56 #define APOLLON_ETH_CS          1
  57 #define APOLLON_NOR_CS          3
  58
  59 #define APOLLON_ONENAND_CS2_ADDRESS     (0x00000e40 | (0x10000000 >> 24))
  60 #define APOLLON_EXT_CS3_ADDRESS         (0x00000c40 | (0x18000000 >> 24))
  61
  62 static struct mtd_partition apollon_partitions[] = {
  63         {
  64                 .name           = "X-Loader + U-Boot",
  65                 .offset         = 0,
  66                 .size           = SZ_128K,
  67                 .mask_flags     = MTD_WRITEABLE,
  68         },
  69         {
  70                 .name           = "params",
  71                 .offset         = MTDPART_OFS_APPEND,
  72                 .size           = SZ_128K,
  73         },
  74         {
  75                 .name           = "kernel",
  76                 .offset         = MTDPART_OFS_APPEND,
  77                 .size           = SZ_2M,
  78         },
  79         {
  80                 .name           = "rootfs",
  81                 .offset         = MTDPART_OFS_APPEND,
  82                 .size           = SZ_16M,
  83         },
  84         {
  85                 .name           = "filesystem00",
  86                 .offset         = MTDPART_OFS_APPEND,
  87                 .size           = SZ_32M,
  88         },
  89         {
  90                 .name           = "filesystem01",
  91                 .offset         = MTDPART_OFS_APPEND,
  92                 .size           = MTDPART_SIZ_FULL,
  93         },
  94 };
  95
  96 static struct flash_platform_data apollon_flash_data = {
  97         .parts          = apollon_partitions,
  98         .nr_parts       = ARRAY_SIZE(apollon_partitions),
  99 };
 100
 101 static struct resource apollon_flash_resource[] = {
 102         [0] = {
 103                 .flags          = IORESOURCE_MEM,
 104         },
 105 };
 106
 107 static struct platform_device apollon_onenand_device = {
 108         .name           = "onenand",
 109         .id             = -1,
 110         .dev            = {
 111                 .platform_data  = &apollon_flash_data,
 112         },
 113         .num_resources  = ARRAY_SIZE(apollon_flash_resource),
 114         .resource       = apollon_flash_resource,
 115 };
 116
 117 static struct mtd_partition apollon_nor_partitions[] = {
 118         {
 119                 .name           = "U-Boot",
 120                 .offset         = 0,
 121                 .size           = SZ_128K,
 122                 .mask_flags     = MTD_WRITEABLE,
 123         },
 124         {
 125                 .name           = "params",
 126                 .offset         = MTDPART_OFS_APPEND,
 127                 .size           = SZ_128K,
 128         },
 129         {
 130                 .name           = "kernel",
 131                 .offset         = MTDPART_OFS_APPEND,
 132                 .size           = SZ_2M,
 133         },
 134         {
 135                 .name           = "rootfs",
 136                 .offset         = MTDPART_OFS_APPEND,
 137                 .size           = SZ_4M - SZ_256K,
 138         },
 139         {
 140                 .name           = "application",
 141                 .offset         = MTDPART_OFS_APPEND,
 142                 .size           = SZ_8M + SZ_2M,
 143         },
 144         {
 145                 .name           = "reserved",
 146                 .offset         = MTDPART_OFS_APPEND,
 147                 .size           = MTDPART_SIZ_FULL,
 148         },
 149 };
 150
 151 static struct flash_platform_data apollon_nor_data = {
 152         .map_name               = "cfi_probe",
 153         .width          = 2,
 154         .parts          = apollon_nor_partitions,
 155         .nr_parts       = ARRAY_SIZE(apollon_nor_partitions),
 156 };
 157
 158 static struct resource apollon_nor_resource[] = {
 159         [0] = {
 160                 .flags  = IORESOURCE_MEM,
 161         }
 162 };
 163
 164 static struct platform_device apollon_nor_device = {
 165         .name           = "omapflash",
 166         .id             = -1,
 167         .dev            = {
 168                 .platform_data  = &apollon_nor_data,
 169         },
 170         .num_resources  = ARRAY_SIZE(apollon_nor_resource),
 171         .resource       = apollon_nor_resource,
 172 };
 173
 174 static void __init apollon_flash_init(void)
 175 {
 176         unsigned long base;
 177
 178         if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) {
 179                 printk(KERN_ERR "Cannot request OneNAND GPMC CS\n");
 180                 return;
 181         }
 182         apollon_flash_resource[0].start = base;
 183         apollon_flash_resource[0].end   = base + SZ_128K - 1;
 184
 185         if (gpmc_cs_request(APOLLON_NOR_CS, SZ_32M, &base) < 0) {
 186                 printk(KERN_ERR "Cannot request NOR GPMC CS\n");
 187                 return;
 188         }
 189         apollon_nor_resource[0].start = base;
 190         apollon_nor_resource[0].end   = base + SZ_32M - 1;
 191 }
 192
 193 static struct resource apollon_smc91x_resources[] = {
 194         [0] = {
 195                 .flags  = IORESOURCE_MEM,
 196         },
 197         [1] = {
 198                 .start  = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
 199                 .end    = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
 200                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 201         },
 202 };
 203
 204 static struct platform_device apollon_smc91x_device = {
 205         .name           = "smc91x",
 206         .id             = -1,
 207         .num_resources  = ARRAY_SIZE(apollon_smc91x_resources),
 208         .resource       = apollon_smc91x_resources,
 209 };
 210
 211 static struct platform_device apollon_lcd_device = {
 212         .name           = "apollon_lcd",
 213         .id             = -1,
 214 };
 215
 216 static struct gpio_led apollon_led_config[] = {
 217         {
 218                 .name                   = "d2",
 219                 .gpio                   = LED0_GPIO13,
 220                 .default_trigger        = "heartbeat",
 221         },
 222         {
 223                 .name                   = "d3",
 224                 .gpio                   = LED1_GPIO14,
 225         },
 226         {
 227                 .name                   = "d4",
 228                 .gpio                   = LED2_GPIO15,
 229         },
 230         {
 231                 .name                   = "d5",
 232                 .gpio                   = LED3_GPIO92,
 233         },
 234         {
 235                 .name                   = "d6",
 236                 .gpio                   = LED4_GPIO93,
 237         },
 238 };
 239
 240 static struct gpio_led_platform_data apollon_led_data = {
 241         .num_leds       = ARRAY_SIZE(apollon_led_config),
 242         .leds           = apollon_led_config,
 243 };
 244
 245 static struct platform_device apollon_led_device = {
 246         .name           = "leds-gpio",
 247         .id             = -1,
 248         .dev            = {
 249                 .platform_data  = &apollon_led_data,
 250         },
 251 };
 252
 253 static struct platform_device *apollon_devices[] __initdata = {
 254         &apollon_onenand_device,
 255         &apollon_nor_device,
 256         &apollon_smc91x_device,
 257         &apollon_lcd_device,
 258         &apollon_led_device,
 259 };
 260
 261 static inline void __init apollon_init_smc91x(void)
 262 {
 263         unsigned long base;
 264         unsigned int rate;
 265         struct clk *l3ck;
 266         int eth_cs;
 267
 268         l3ck = clk_get(NULL, "core_l3_ck");
 269         if (IS_ERR(l3ck))
 270                 rate = 100000000;
 271         else
 272                 rate = clk_get_rate(l3ck);
 273
 274         eth_cs = APOLLON_ETH_CS;
 275
 276         /* Make sure CS1 timings are correct */
 277         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
 278
 279         if (rate >= 160000000) {
 280                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 281                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 282                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 283                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 284                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 285         } else if (rate >= 130000000) {
 286                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 287                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 288                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 289                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 290                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 291         } else {/* rate = 100000000 */
 292                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 293                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 294                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 295                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 296                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 297         }
 298
 299         if (gpmc_cs_request(eth_cs, SZ_16M, &base) < 0) {
 300                 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
 301                 return;
 302         }
 303         apollon_smc91x_resources[0].start = base + 0x300;
 304         apollon_smc91x_resources[0].end   = base + 0x30f;
 305         udelay(100);
 306
 307         omap_cfg_reg(W4__24XX_GPIO74);
 308         if (omap_request_gpio(APOLLON_ETHR_GPIO_IRQ) < 0) {
 309                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 310                         APOLLON_ETHR_GPIO_IRQ);
 311                 gpmc_cs_free(eth_cs);
 312                 return;
 313         }
 314         omap_set_gpio_direction(APOLLON_ETHR_GPIO_IRQ, 1);
 315 }
 316
 317 static void __init omap_apollon_init_irq(void)
 318 {
 319         omap2_init_common_hw();
 320         omap_init_irq();
 321         omap_gpio_init();
 322         apollon_init_smc91x();
 323 }
 324
 325 static struct tsc210x_config tsc_platform_data = {
 326         .use_internal           = 1,
 327         .monitor                = TSC_TEMP,
 328         .mclk                   = "sys_clkout",
 329 };
 330
 331 static struct spi_board_info apollon_spi_board_info[] = {
 332         [0] = {
 333                 .modalias       = "tsc2101",
 334                 .irq            = OMAP_GPIO_IRQ(85),
 335                 .bus_num        = 1,
 336                 .chip_select    = 0,
 337                 .mode           = SPI_MODE_1,
 338                 .max_speed_hz   = 6000000,
 339                 .platform_data  = &tsc_platform_data,
 340         },
 341 };
 342
 343 static struct omap_uart_config apollon_uart_config __initdata = {
 344         .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2),
 345 };
 346
 347 /*
 348  * Note: If you want to detect card feature, please assign GPIO 37
 349  */
 350 static struct omap_mmc_config apollon_mmc_config __initdata = {
 351         .mmc [0] = {
 352                 .enabled        = 1,
 353                 .wire4          = 1,
 354         /* Use internal loop-back in MMC/SDIO Module Input Clock selection */
 355                 .internal_clock = 1,
 356         },
 357 };
 358
 359 static struct omap_usb_config apollon_usb_config __initdata = {
 360         .register_dev   = 1,
 361         .hmc_mode       = 0x14, /* 0:dev 1:host1 2:disable */
 362
 363         .pins[0]        = 6,
 364 };
 365
 366 static struct omap_lcd_config apollon_lcd_config __initdata = {
 367         .ctrl_name      = "internal",
 368 };
 369
 370 static struct omap_board_config_kernel apollon_config[] __initdata = {
 371         { OMAP_TAG_UART,        &apollon_uart_config },
 372         { OMAP_TAG_MMC,         &apollon_mmc_config },
 373         { OMAP_TAG_USB,         &apollon_usb_config },
 374         { OMAP_TAG_LCD,         &apollon_lcd_config },
 375 };
 376
 377 static void __init apollon_led_init(void)
 378 {
 379         /* LED0 - AA10 */
 380         omap_cfg_reg(AA10_242X_GPIO13);
 381         /* LED1  - AA6 */
 382         omap_cfg_reg(AA6_242X_GPIO14);
 383         /* LED2  - AA4 */
 384         omap_cfg_reg(AA4_242X_GPIO15);
 385
 386         if (apollon_plus()) {
 387                 /* LED3 - M15 */
 388                 omap_cfg_reg(M15_24XX_GPIO92);
 389                 /* LED4 - P20 */
 390                 omap_cfg_reg(P20_24XX_GPIO93);
 391         } else
 392                 apollon_led_data.num_leds = 3;
 393 }
 394
 395 static void __init apollon_usb_init(void)
 396 {
 397         /* USB device */
 398         /* DEVICE_SUSPEND */
 399         omap_cfg_reg(P21_242X_GPIO12);
 400         omap_request_gpio(12);
 401         omap_set_gpio_direction(12, 0);         /* OUT */
 402         omap_set_gpio_dataout(12, 0);
 403 }
 404
 405 static void __init apollon_tsc_init(void)
 406 {
 407         /* TSC2101 */
 408         omap_cfg_reg(N15_24XX_GPIO85);
 409         omap_request_gpio(85);
 410         omap_set_gpio_direction(85, 1);
 411
 412         omap_cfg_reg(W14_24XX_SYS_CLKOUT);      /* mclk */
 413 }
 414
 415 static void __init apollon_cs_init(void)
 416 {
 417         unsigned long base;
 418         unsigned int rate;
 419         struct clk *l3ck;
 420         u32 value;
 421         int cs, sync = 0;
 422
 423         l3ck = clk_get(NULL, "core_l3_ck");
 424         if (IS_ERR(l3ck))
 425                 rate = 100000000;
 426         else
 427                 rate = clk_get_rate(l3ck);
 428
 429         /* CS2: OneNAND */
 430         cs = 2;
 431         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG1);
 432         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, value);
 433         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG2);
 434         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, value);
 435         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG3);
 436         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, value);
 437         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG4);
 438         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, value);
 439         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG5);
 440         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, value);
 441         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG6);
 442         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, value);
 443
 444         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG7, APOLLON_ONENAND_CS2_ADDRESS);
 445
 446         /* CS3: External NOR */
 447         cs = APOLLON_NOR_CS;
 448         if (rate >= 160000000) {
 449                 sync = 1;
 450                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, 0xe5011211);
 451                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, 0x00090b01);
 452                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, 0x00020201);
 453                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, 0x09030b03);
 454                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, 0x010a0a0c);
 455                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, 0x00000000);
 456         } else if (rate >= 130000000) {
 457                 /* Not yet know ... Use the async values */
 458                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, 0x00021201);
 459                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, 0x00121601);
 460                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, 0x00040401);
 461                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, 0x12061605);
 462                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, 0x01151317);
 463                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, 0x00000000);
 464         } else {/* rate = 100000000 */
 465                 sync = 1;
 466                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, 0xe1001202);
 467                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, 0x00151501);
 468                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, 0x00050501);
 469                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, 0x0e070e07);
 470                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, 0x01131F1F);
 471                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, 0x00000000);
 472         }
 473
 474         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG7, APOLLON_EXT_CS3_ADDRESS);
 475
 476         if (gpmc_cs_request(cs, SZ_32M, &base) < 0) {
 477                 printk(KERN_ERR "Failed to request GPMC CS for external\n");
 478                 return;
 479         }
 480
 481         /* Synchronous mode */
 482         if (sync) {
 483                 void __iomem *addr = ioremap(base, SZ_32M);
 484                 writew(0xaa, addr + 0xaaa);
 485                 writew(0x55, addr + 0x554);
 486                 writew(0xc0, addr + 0x24aaa);
 487                 iounmap(addr);
 488         }
 489
 490         gpmc_cs_free(cs);
 491 }
 492
 493 static void __init omap_apollon_init(void)
 494 {
 495         apollon_cs_init();
 496         apollon_led_init();
 497         apollon_flash_init();
 498         apollon_usb_init();
 499         apollon_tsc_init();
 500
 501         /*
 502          * Make sure the serial ports are muxed on at this point.
 503          * You have to mux them off in device drivers later on
 504          * if not needed.
 505          */
 506         platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
 507         omap_board_config = apollon_config;
 508         omap_board_config_size = ARRAY_SIZE(apollon_config);
 509         omap_serial_init();
 510         omap_register_i2c_bus(1, 100, NULL, 0);
 511         omap_register_i2c_bus(2, 100, NULL, 0);
 512
 513         spi_register_board_info(apollon_spi_board_info,
 514                                 ARRAY_SIZE(apollon_spi_board_info));
 515
 516         apollon_mmc_init();
 517 }
 518
 519 static void __init omap_apollon_map_io(void)
 520 {
 521         omap2_set_globals_242x();
 522         omap2_map_common_io();
 523 }
 524
 525 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
 526         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
 527         .phys_io        = 0x48000000,
 528         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 529         .boot_params    = 0x80000100,
 530         .map_io         = omap_apollon_map_io,
 531         .init_irq       = omap_apollon_init_irq,
 532         .init_machine   = omap_apollon_init,
 533         .timer          = &omap_timer,
 534 MACHINE_END