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 <mach/hardware.h>
  36 #include <asm/mach-types.h>
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/flash.h>
  39
  40 #include <mach/gpio.h>
  41 #include <mach/led.h>
  42 #include <mach/mux.h>
  43 #include <mach/usb.h>
  44 #include <mach/board.h>
  45 #include <mach/common.h>
  46 #include <mach/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 *gpmc_fck;
 266         int eth_cs;
 267
 268         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
 269         if (IS_ERR(gpmc_fck)) {
 270                 WARN_ON(1);
 271                 return;
 272         }
 273
 274         clk_enable(gpmc_fck);
 275         rate = clk_get_rate(gpmc_fck);
 276
 277         eth_cs = APOLLON_ETH_CS;
 278
 279         /* Make sure CS1 timings are correct */
 280         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
 281
 282         if (rate >= 160000000) {
 283                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 284                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 285                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 286                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 287                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 288         } else if (rate >= 130000000) {
 289                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 290                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 291                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 292                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 293                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 294         } else {/* rate = 100000000 */
 295                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 296                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 297                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 298                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 299                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 300         }
 301
 302         if (gpmc_cs_request(eth_cs, SZ_16M, &base) < 0) {
 303                 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
 304                 goto out;
 305         }
 306         apollon_smc91x_resources[0].start = base + 0x300;
 307         apollon_smc91x_resources[0].end   = base + 0x30f;
 308         udelay(100);
 309
 310         omap_cfg_reg(W4__24XX_GPIO74);
 311         if (omap_request_gpio(APOLLON_ETHR_GPIO_IRQ) < 0) {
 312                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 313                         APOLLON_ETHR_GPIO_IRQ);
 314                 gpmc_cs_free(eth_cs);
 315                 goto out;
 316         }
 317         omap_set_gpio_direction(APOLLON_ETHR_GPIO_IRQ, 1);
 318
 319 out:
 320         clk_disable(gpmc_fck);
 321         clk_put(gpmc_fck);
 322 }
 323
 324 static void __init omap_apollon_init_irq(void)
 325 {
 326         omap2_init_common_hw(NULL);
 327         omap_init_irq();
 328         omap_gpio_init();
 329         apollon_init_smc91x();
 330 }
 331
 332 static struct tsc210x_config tsc_platform_data = {
 333         .use_internal           = 1,
 334         .monitor                = TSC_TEMP,
 335         .mclk                   = "sys_clkout",
 336 };
 337
 338 static struct spi_board_info apollon_spi_board_info[] = {
 339         [0] = {
 340                 .modalias       = "tsc2101",
 341                 .irq            = OMAP_GPIO_IRQ(85),
 342                 .bus_num        = 1,
 343                 .chip_select    = 0,
 344                 .mode           = SPI_MODE_1,
 345                 .max_speed_hz   = 6000000,
 346                 .platform_data  = &tsc_platform_data,
 347         },
 348 };
 349
 350 static struct omap_uart_config apollon_uart_config __initdata = {
 351         .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2),
 352 };
 353
 354 static struct omap_usb_config apollon_usb_config __initdata = {
 355         .register_dev   = 1,
 356         .hmc_mode       = 0x14, /* 0:dev 1:host1 2:disable */
 357
 358         .pins[0]        = 6,
 359 };
 360
 361 static struct omap_lcd_config apollon_lcd_config __initdata = {
 362         .ctrl_name      = "internal",
 363 };
 364
 365 static struct omap_board_config_kernel apollon_config[] __initdata = {
 366         { OMAP_TAG_UART,        &apollon_uart_config },
 367         { OMAP_TAG_USB,         &apollon_usb_config },
 368         { OMAP_TAG_LCD,         &apollon_lcd_config },
 369 };
 370
 371 static void __init apollon_led_init(void)
 372 {
 373         /* LED0 - AA10 */
 374         omap_cfg_reg(AA10_242X_GPIO13);
 375         /* LED1  - AA6 */
 376         omap_cfg_reg(AA6_242X_GPIO14);
 377         /* LED2  - AA4 */
 378         omap_cfg_reg(AA4_242X_GPIO15);
 379
 380         if (apollon_plus()) {
 381                 /* LED3 - M15 */
 382                 omap_cfg_reg(M15_24XX_GPIO92);
 383                 /* LED4 - P20 */
 384                 omap_cfg_reg(P20_24XX_GPIO93);
 385         } else
 386                 apollon_led_data.num_leds = 3;
 387 }
 388
 389 static void __init apollon_usb_init(void)
 390 {
 391         /* USB device */
 392         /* DEVICE_SUSPEND */
 393         omap_cfg_reg(P21_242X_GPIO12);
 394         omap_request_gpio(12);
 395         omap_set_gpio_direction(12, 0);         /* OUT */
 396         omap_set_gpio_dataout(12, 0);
 397 }
 398
 399 static void __init apollon_tsc_init(void)
 400 {
 401         /* TSC2101 */
 402         omap_cfg_reg(N15_24XX_GPIO85);
 403         omap_request_gpio(85);
 404         omap_set_gpio_direction(85, 1);
 405
 406         omap_cfg_reg(W14_24XX_SYS_CLKOUT);      /* mclk */
 407 }
 408
 409 static void __init apollon_cs_init(void)
 410 {
 411         unsigned long base;
 412         unsigned int rate;
 413         struct clk *l3ck;
 414         u32 value;
 415         int cs, sync = 0;
 416
 417         l3ck = clk_get(NULL, "core_l3_ck");
 418         if (IS_ERR(l3ck))
 419                 rate = 100000000;
 420         else
 421                 rate = clk_get_rate(l3ck);
 422
 423         /* CS2: OneNAND */
 424         cs = 2;
 425         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG1);
 426         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, value);
 427         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG2);
 428         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, value);
 429         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG3);
 430         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, value);
 431         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG4);
 432         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, value);
 433         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG5);
 434         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, value);
 435         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG6);
 436         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, value);
 437
 438         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG7, APOLLON_ONENAND_CS2_ADDRESS);
 439
 440         /* CS3: External NOR */
 441         cs = APOLLON_NOR_CS;
 442         if (rate >= 160000000) {
 443                 sync = 1;
 444                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, 0xe5011211);
 445                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, 0x00090b01);
 446                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, 0x00020201);
 447                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, 0x09030b03);
 448                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, 0x010a0a0c);
 449                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, 0x00000000);
 450         } else if (rate >= 130000000) {
 451                 /* Not yet know ... Use the async values */
 452                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, 0x00021201);
 453                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, 0x00121601);
 454                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, 0x00040401);
 455                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, 0x12061605);
 456                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, 0x01151317);
 457                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, 0x00000000);
 458         } else {/* rate = 100000000 */
 459                 sync = 1;
 460                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, 0xe1001202);
 461                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, 0x00151501);
 462                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, 0x00050501);
 463                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, 0x0e070e07);
 464                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, 0x01131F1F);
 465                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, 0x00000000);
 466         }
 467
 468         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG7, APOLLON_EXT_CS3_ADDRESS);
 469
 470         if (gpmc_cs_request(cs, SZ_32M, &base) < 0) {
 471                 printk(KERN_ERR "Failed to request GPMC CS for external\n");
 472                 return;
 473         }
 474
 475         /* Synchronous mode */
 476         if (sync) {
 477                 void __iomem *addr = ioremap(base, SZ_32M);
 478                 writew(0xaa, addr + 0xaaa);
 479                 writew(0x55, addr + 0x554);
 480                 writew(0xc0, addr + 0x24aaa);
 481                 iounmap(addr);
 482         }
 483
 484         gpmc_cs_free(cs);
 485 }
 486
 487 static void __init omap_apollon_init(void)
 488 {
 489         apollon_cs_init();
 490         apollon_led_init();
 491         apollon_flash_init();
 492         apollon_usb_init();
 493         apollon_tsc_init();
 494
 495         /*
 496          * Make sure the serial ports are muxed on at this point.
 497          * You have to mux them off in device drivers later on
 498          * if not needed.
 499          */
 500         platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
 501         omap_board_config = apollon_config;
 502         omap_board_config_size = ARRAY_SIZE(apollon_config);
 503         omap_serial_init();
 504         omap_register_i2c_bus(1, 100, NULL, 0);
 505         omap_register_i2c_bus(2, 100, NULL, 0);
 506
 507         spi_register_board_info(apollon_spi_board_info,
 508                                 ARRAY_SIZE(apollon_spi_board_info));
 509
 510         apollon_mmc_init();
 511 }
 512
 513 static void __init omap_apollon_map_io(void)
 514 {
 515         omap2_set_globals_242x();
 516         omap2_map_common_io();
 517 }
 518
 519 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
 520         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
 521         .phys_io        = 0x48000000,
 522         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 523         .boot_params    = 0x80000100,
 524         .map_io         = omap_apollon_map_io,
 525         .init_irq       = omap_apollon_init_irq,
 526         .init_machine   = omap_apollon_init,
 527         .timer          = &omap_timer,
 528 MACHINE_END