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 omap_led_config apollon_led_config[] = {
 217         {
 218                 .cdev   = {
 219                         .name   = "apollon:led0",
 220                 },
 221                 .gpio   = LED0_GPIO13,
 222         },
 223         {
 224                 .cdev   = {
 225                         .name   = "apollon:led1",
 226                 },
 227                 .gpio   = LED1_GPIO14,
 228         },
 229         {
 230                 .cdev   = {
 231                         .name   = "apollon:led2",
 232                 },
 233                 .gpio   = LED2_GPIO15,
 234         },
 235 #ifdef CONFIG_MACH_OMAP_APOLLON_PLUS
 236         {
 237                 .cdev   = {
 238                         .name   = "apollon:led3",
 239                 },
 240                 .gpio   = LED3_GPIO92,
 241         },
 242         {
 243                 .cdev   = {
 244                         .name   = "apollon:led4",
 245                 },
 246                 .gpio   = LED4_GPIO93,
 247         },
 248 #endif
 249 };
 250
 251 static struct omap_led_platform_data apollon_led_data = {
 252         .nr_leds        = ARRAY_SIZE(apollon_led_config),
 253         .leds           = apollon_led_config,
 254 };
 255
 256 static struct platform_device apollon_led_device = {
 257         .name           = "omap-led",
 258         .id             = -1,
 259         .dev            = {
 260                 .platform_data  = &apollon_led_data,
 261         },
 262 };
 263
 264 static struct platform_device *apollon_devices[] __initdata = {
 265         &apollon_onenand_device,
 266         &apollon_nor_device,
 267         &apollon_smc91x_device,
 268         &apollon_lcd_device,
 269         &apollon_led_device,
 270 };
 271
 272 static inline void __init apollon_init_smc91x(void)
 273 {
 274         unsigned long base;
 275         unsigned int rate;
 276         struct clk *l3ck;
 277         int eth_cs;
 278
 279         l3ck = clk_get(NULL, "core_l3_ck");
 280         if (IS_ERR(l3ck))
 281                 rate = 100000000;
 282         else
 283                 rate = clk_get_rate(l3ck);
 284
 285         eth_cs = APOLLON_ETH_CS;
 286
 287         /* Make sure CS1 timings are correct */
 288         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
 289
 290         if (rate >= 160000000) {
 291                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 292                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 293                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 294                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 295                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 296         } else if (rate >= 130000000) {
 297                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 298                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 299                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 300                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 301                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 302         } else {/* rate = 100000000 */
 303                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 304                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 305                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 306                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 307                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 308         }
 309
 310         if (gpmc_cs_request(eth_cs, SZ_16M, &base) < 0) {
 311                 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
 312                 return;
 313         }
 314         apollon_smc91x_resources[0].start = base + 0x300;
 315         apollon_smc91x_resources[0].end   = base + 0x30f;
 316         udelay(100);
 317
 318         omap_cfg_reg(W4__24XX_GPIO74);
 319         if (omap_request_gpio(APOLLON_ETHR_GPIO_IRQ) < 0) {
 320                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 321                         APOLLON_ETHR_GPIO_IRQ);
 322                 gpmc_cs_free(eth_cs);
 323                 return;
 324         }
 325         omap_set_gpio_direction(APOLLON_ETHR_GPIO_IRQ, 1);
 326 }
 327
 328 static void __init omap_apollon_init_irq(void)
 329 {
 330         omap2_init_common_hw();
 331         omap_init_irq();
 332         omap_gpio_init();
 333         apollon_init_smc91x();
 334 }
 335
 336 static struct tsc210x_config tsc_platform_data = {
 337         .use_internal           = 1,
 338         .monitor                = TSC_TEMP,
 339         .mclk                   = "sys_clkout",
 340 };
 341
 342 static struct spi_board_info apollon_spi_board_info[] = {
 343         [0] = {
 344                 .modalias       = "tsc2101",
 345                 .irq            = OMAP_GPIO_IRQ(85),
 346                 .bus_num        = 1,
 347                 .chip_select    = 0,
 348                 .mode           = SPI_MODE_1,
 349                 .max_speed_hz   = 6000000,
 350                 .platform_data  = &tsc_platform_data,
 351         },
 352 };
 353
 354 static struct omap_uart_config apollon_uart_config __initdata = {
 355         .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2),
 356 };
 357
 358 /*
 359  * Note: If you want to detect card feature, please assign GPIO 37
 360  */
 361 static struct omap_mmc_config apollon_mmc_config __initdata = {
 362         .mmc [0] = {
 363                 .enabled        = 1,
 364                 .wire4          = 1,
 365         /* Use internal loop-back in MMC/SDIO Module Input Clock selection */
 366                 .internal_clock = 1,
 367         },
 368 };
 369
 370 static struct omap_usb_config apollon_usb_config __initdata = {
 371         .register_dev   = 1,
 372         .hmc_mode       = 0x14, /* 0:dev 1:host1 2:disable */
 373
 374         .pins[0]        = 6,
 375 };
 376
 377 static struct omap_lcd_config apollon_lcd_config __initdata = {
 378         .ctrl_name      = "internal",
 379 };
 380
 381 static struct omap_board_config_kernel apollon_config[] __initdata = {
 382         { OMAP_TAG_UART,        &apollon_uart_config },
 383         { OMAP_TAG_MMC,         &apollon_mmc_config },
 384         { OMAP_TAG_USB,         &apollon_usb_config },
 385         { OMAP_TAG_LCD,         &apollon_lcd_config },
 386 };
 387
 388 static void __init apollon_led_init(void)
 389 {
 390         /* LED0 - AA10 */
 391         omap_cfg_reg(AA10_242X_GPIO13);
 392         omap_request_gpio(LED0_GPIO13);
 393         omap_set_gpio_direction(LED0_GPIO13, 0);
 394         omap_set_gpio_dataout(LED0_GPIO13, 0);
 395         /* LED1  - AA6 */
 396         omap_cfg_reg(AA6_242X_GPIO14);
 397         omap_request_gpio(LED1_GPIO14);
 398         omap_set_gpio_direction(LED1_GPIO14, 0);
 399         omap_set_gpio_dataout(LED1_GPIO14, 0);
 400         /* LED2  - AA4 */
 401         omap_cfg_reg(AA4_242X_GPIO15);
 402         omap_request_gpio(LED2_GPIO15);
 403         omap_set_gpio_direction(LED2_GPIO15, 0);
 404         omap_set_gpio_dataout(LED2_GPIO15, 0);
 405 #ifdef CONFIG_MACH_OMAP_APOLLON_PLUS
 406         /* LED3 - M15 */
 407         omap_cfg_reg(M15_24XX_GPIO92);
 408         omap_request_gpio(LED3_GPIO92);
 409         omap_set_gpio_direction(LED3_GPIO92, 0);
 410         omap_set_gpio_dataout(LED3_GPIO92, 0);
 411         /* LED4 - P20 */
 412         omap_cfg_reg(P20_24XX_GPIO93);
 413         omap_request_gpio(LED4_GPIO93);
 414         omap_set_gpio_direction(LED4_GPIO93, 0);
 415         omap_set_gpio_dataout(LED4_GPIO93, 0);
 416 #endif
 417 }
 418
 419 static void __init apollon_usb_init(void)
 420 {
 421         /* USB device */
 422         /* DEVICE_SUSPEND */
 423         omap_cfg_reg(P21_242X_GPIO12);
 424         omap_request_gpio(12);
 425         omap_set_gpio_direction(12, 0);         /* OUT */
 426         omap_set_gpio_dataout(12, 0);
 427 }
 428
 429 static void __init apollon_tsc_init(void)
 430 {
 431         /* TSC2101 */
 432         omap_cfg_reg(N15_24XX_GPIO85);
 433         omap_request_gpio(85);
 434         omap_set_gpio_direction(85, 1);
 435
 436         omap_cfg_reg(W14_24XX_SYS_CLKOUT);      /* mclk */
 437 }
 438
 439 static void __init apollon_cs_init(void)
 440 {
 441         unsigned long base;
 442         unsigned int rate;
 443         struct clk *l3ck;
 444         u32 value;
 445         int cs, sync = 0;
 446
 447         l3ck = clk_get(NULL, "core_l3_ck");
 448         if (IS_ERR(l3ck))
 449                 rate = 100000000;
 450         else
 451                 rate = clk_get_rate(l3ck);
 452
 453         /* CS2: OneNAND */
 454         cs = 2;
 455         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG1);
 456         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, value);
 457         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG2);
 458         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, value);
 459         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG3);
 460         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, value);
 461         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG4);
 462         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, value);
 463         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG5);
 464         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, value);
 465         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG6);
 466         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, value);
 467
 468         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG7, APOLLON_ONENAND_CS2_ADDRESS);
 469
 470         /* CS3: External NOR */
 471         cs = APOLLON_NOR_CS;
 472         if (rate >= 160000000) {
 473                 sync = 1;
 474                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, 0xe5011211);
 475                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, 0x00090b01);
 476                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, 0x00020201);
 477                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, 0x09030b03);
 478                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, 0x010a0a0c);
 479                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, 0x00000000);
 480         } else if (rate >= 130000000) {
 481                 /* Not yet know ... Use the async values */
 482                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, 0x00021201);
 483                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, 0x00121601);
 484                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, 0x00040401);
 485                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, 0x12061605);
 486                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, 0x01151317);
 487                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, 0x00000000);
 488         } else {/* rate = 100000000 */
 489                 sync = 1;
 490                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, 0xe1001202);
 491                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, 0x00151501);
 492                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, 0x00050501);
 493                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, 0x0e070e07);
 494                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, 0x01131F1F);
 495                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, 0x00000000);
 496         }
 497
 498         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG7, APOLLON_EXT_CS3_ADDRESS);
 499
 500         if (gpmc_cs_request(cs, SZ_32M, &base) < 0) {
 501                 printk(KERN_ERR "Failed to request GPMC CS for external\n");
 502                 return;
 503         }
 504
 505         /* Synchronous mode */
 506         if (sync) {
 507                 void __iomem *addr = ioremap(base, SZ_32M);
 508                 writew(0xaa, addr + 0xaaa);
 509                 writew(0x55, addr + 0x554);
 510                 writew(0xc0, addr + 0x24aaa);
 511                 iounmap(addr);
 512         }
 513
 514         gpmc_cs_free(cs);
 515 }
 516
 517 static void __init omap_apollon_init(void)
 518 {
 519         apollon_cs_init();
 520         apollon_led_init();
 521         apollon_flash_init();
 522         apollon_usb_init();
 523         apollon_tsc_init();
 524
 525         /*
 526          * Make sure the serial ports are muxed on at this point.
 527          * You have to mux them off in device drivers later on
 528          * if not needed.
 529          */
 530         platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
 531         omap_board_config = apollon_config;
 532         omap_board_config_size = ARRAY_SIZE(apollon_config);
 533         omap_serial_init();
 534         omap_register_i2c_bus(1, 100, NULL, 0);
 535         omap_register_i2c_bus(2, 100, NULL, 0);
 536
 537         spi_register_board_info(apollon_spi_board_info,
 538                                 ARRAY_SIZE(apollon_spi_board_info));
 539
 540         apollon_mmc_init();
 541 }
 542
 543 static void __init omap_apollon_map_io(void)
 544 {
 545         omap2_set_globals_242x();
 546         omap2_map_common_io();
 547 }
 548
 549 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
 550         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
 551         .phys_io        = 0x48000000,
 552         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 553         .boot_params    = 0x80000100,
 554         .map_io         = omap_apollon_map_io,
 555         .init_irq       = omap_apollon_init_irq,
 556         .init_machine   = omap_apollon_init,
 557         .timer          = &omap_timer,
 558 MACHINE_END