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 #define APOLLON_ETHR_GPIO_IRQ   74
  59
  60 #define APOLLON_ONENAND_CS2_ADDRESS     (0x00000e40 | (0x10000000 >> 24))
  61 #define APOLLON_EXT_CS3_ADDRESS         (0x00000c40 | (0x18000000 >> 24))
  62
  63 extern apollon_mmc_init(void);
  64
  65 int apollon_plus(void)
  66 {
  67         /* The apollon plus has IDCODE revision 5 */
  68         return omap_rev() & 0xc0;
  69 }
  70
  71 static struct mtd_partition apollon_partitions[] = {
  72         {
  73                 .name           = "X-Loader + U-Boot",
  74                 .offset         = 0,
  75                 .size           = SZ_128K,
  76                 .mask_flags     = MTD_WRITEABLE,
  77         },
  78         {
  79                 .name           = "params",
  80                 .offset         = MTDPART_OFS_APPEND,
  81                 .size           = SZ_128K,
  82         },
  83         {
  84                 .name           = "kernel",
  85                 .offset         = MTDPART_OFS_APPEND,
  86                 .size           = SZ_2M,
  87         },
  88         {
  89                 .name           = "rootfs",
  90                 .offset         = MTDPART_OFS_APPEND,
  91                 .size           = SZ_16M,
  92         },
  93         {
  94                 .name           = "filesystem00",
  95                 .offset         = MTDPART_OFS_APPEND,
  96                 .size           = SZ_32M,
  97         },
  98         {
  99                 .name           = "filesystem01",
 100                 .offset         = MTDPART_OFS_APPEND,
 101                 .size           = MTDPART_SIZ_FULL,
 102         },
 103 };
 104
 105 static struct flash_platform_data apollon_flash_data = {
 106         .parts          = apollon_partitions,
 107         .nr_parts       = ARRAY_SIZE(apollon_partitions),
 108 };
 109
 110 static struct resource apollon_flash_resource[] = {
 111         [0] = {
 112                 .flags          = IORESOURCE_MEM,
 113         },
 114 };
 115
 116 static struct platform_device apollon_onenand_device = {
 117         .name           = "onenand",
 118         .id             = -1,
 119         .dev            = {
 120                 .platform_data  = &apollon_flash_data,
 121         },
 122         .num_resources  = ARRAY_SIZE(apollon_flash_resource),
 123         .resource       = apollon_flash_resource,
 124 };
 125
 126 static struct mtd_partition apollon_nor_partitions[] = {
 127         {
 128                 .name           = "U-Boot",
 129                 .offset         = 0,
 130                 .size           = SZ_128K,
 131                 .mask_flags     = MTD_WRITEABLE,
 132         },
 133         {
 134                 .name           = "params",
 135                 .offset         = MTDPART_OFS_APPEND,
 136                 .size           = SZ_128K,
 137         },
 138         {
 139                 .name           = "kernel",
 140                 .offset         = MTDPART_OFS_APPEND,
 141                 .size           = SZ_2M,
 142         },
 143         {
 144                 .name           = "rootfs",
 145                 .offset         = MTDPART_OFS_APPEND,
 146                 .size           = SZ_4M - SZ_256K,
 147         },
 148         {
 149                 .name           = "application",
 150                 .offset         = MTDPART_OFS_APPEND,
 151                 .size           = SZ_8M + SZ_2M,
 152         },
 153         {
 154                 .name           = "reserved",
 155                 .offset         = MTDPART_OFS_APPEND,
 156                 .size           = MTDPART_SIZ_FULL,
 157         },
 158 };
 159
 160 static struct flash_platform_data apollon_nor_data = {
 161         .map_name               = "cfi_probe",
 162         .width          = 2,
 163         .parts          = apollon_nor_partitions,
 164         .nr_parts       = ARRAY_SIZE(apollon_nor_partitions),
 165 };
 166
 167 static struct resource apollon_nor_resource[] = {
 168         [0] = {
 169                 .flags  = IORESOURCE_MEM,
 170         }
 171 };
 172
 173 static struct platform_device apollon_nor_device = {
 174         .name           = "omapflash",
 175         .id             = -1,
 176         .dev            = {
 177                 .platform_data  = &apollon_nor_data,
 178         },
 179         .num_resources  = ARRAY_SIZE(apollon_nor_resource),
 180         .resource       = apollon_nor_resource,
 181 };
 182
 183 static void __init apollon_flash_init(void)
 184 {
 185         unsigned long base;
 186
 187         if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) {
 188                 printk(KERN_ERR "Cannot request OneNAND GPMC CS\n");
 189                 return;
 190         }
 191         apollon_flash_resource[0].start = base;
 192         apollon_flash_resource[0].end   = base + SZ_128K - 1;
 193
 194         if (gpmc_cs_request(APOLLON_NOR_CS, SZ_32M, &base) < 0) {
 195                 printk(KERN_ERR "Cannot request NOR GPMC CS\n");
 196                 return;
 197         }
 198         apollon_nor_resource[0].start = base;
 199         apollon_nor_resource[0].end   = base + SZ_32M - 1;
 200 }
 201
 202 static struct resource apollon_smc91x_resources[] = {
 203         [0] = {
 204                 .flags  = IORESOURCE_MEM,
 205         },
 206         [1] = {
 207                 .start  = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
 208                 .end    = OMAP_GPIO_IRQ(APOLLON_ETHR_GPIO_IRQ),
 209                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 210         },
 211 };
 212
 213 static struct platform_device apollon_smc91x_device = {
 214         .name           = "smc91x",
 215         .id             = -1,
 216         .num_resources  = ARRAY_SIZE(apollon_smc91x_resources),
 217         .resource       = apollon_smc91x_resources,
 218 };
 219
 220 static struct platform_device apollon_lcd_device = {
 221         .name           = "apollon_lcd",
 222         .id             = -1,
 223 };
 224
 225 static struct gpio_led apollon_led_config[] = {
 226         {
 227                 .name                   = "d2",
 228                 .gpio                   = LED0_GPIO13,
 229                 .default_trigger        = "heartbeat",
 230         },
 231         {
 232                 .name                   = "d3",
 233                 .gpio                   = LED1_GPIO14,
 234         },
 235         {
 236                 .name                   = "d4",
 237                 .gpio                   = LED2_GPIO15,
 238         },
 239         {
 240                 .name                   = "d5",
 241                 .gpio                   = LED3_GPIO92,
 242         },
 243         {
 244                 .name                   = "d6",
 245                 .gpio                   = LED4_GPIO93,
 246         },
 247 };
 248
 249 static struct gpio_led_platform_data apollon_led_data = {
 250         .num_leds       = ARRAY_SIZE(apollon_led_config),
 251         .leds           = apollon_led_config,
 252 };
 253
 254 static struct platform_device apollon_led_device = {
 255         .name           = "leds-gpio",
 256         .id             = -1,
 257         .dev            = {
 258                 .platform_data  = &apollon_led_data,
 259         },
 260 };
 261
 262 static struct platform_device *apollon_devices[] __initdata = {
 263         &apollon_onenand_device,
 264         &apollon_nor_device,
 265         &apollon_smc91x_device,
 266         &apollon_lcd_device,
 267         &apollon_led_device,
 268 };
 269
 270 static inline void __init apollon_init_smc91x(void)
 271 {
 272         unsigned long base;
 273         unsigned int rate;
 274         struct clk *gpmc_fck;
 275         int eth_cs;
 276
 277         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
 278         if (IS_ERR(gpmc_fck)) {
 279                 WARN_ON(1);
 280                 return;
 281         }
 282
 283         clk_enable(gpmc_fck);
 284         rate = clk_get_rate(gpmc_fck);
 285
 286         eth_cs = APOLLON_ETH_CS;
 287
 288         /* Make sure CS1 timings are correct */
 289         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
 290
 291         if (rate >= 160000000) {
 292                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 293                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 294                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 295                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 296                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 297         } else if (rate >= 130000000) {
 298                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 299                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 300                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 301                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 302                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 303         } else {/* rate = 100000000 */
 304                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 305                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 306                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 307                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 308                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 309         }
 310
 311         if (gpmc_cs_request(eth_cs, SZ_16M, &base) < 0) {
 312                 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
 313                 goto out;
 314         }
 315         apollon_smc91x_resources[0].start = base + 0x300;
 316         apollon_smc91x_resources[0].end   = base + 0x30f;
 317         udelay(100);
 318
 319         omap_cfg_reg(W4__24XX_GPIO74);
 320         if (gpio_request(APOLLON_ETHR_GPIO_IRQ, "SMC91x irq") < 0) {
 321                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 322                         APOLLON_ETHR_GPIO_IRQ);
 323                 gpmc_cs_free(eth_cs);
 324                 goto out;
 325         }
 326         gpio_direction_input(APOLLON_ETHR_GPIO_IRQ);
 327
 328 out:
 329         clk_disable(gpmc_fck);
 330         clk_put(gpmc_fck);
 331 }
 332
 333 static void __init omap_apollon_init_irq(void)
 334 {
 335         omap2_init_common_hw(NULL);
 336         omap_init_irq();
 337         omap_gpio_init();
 338         apollon_init_smc91x();
 339 }
 340
 341 static struct tsc210x_config tsc_platform_data = {
 342         .use_internal           = 1,
 343         .monitor                = TSC_TEMP,
 344         .mclk                   = "sys_clkout",
 345 };
 346
 347 static struct spi_board_info apollon_spi_board_info[] = {
 348         [0] = {
 349                 .modalias       = "tsc2101",
 350                 .irq            = OMAP_GPIO_IRQ(85),
 351                 .bus_num        = 1,
 352                 .chip_select    = 0,
 353                 .mode           = SPI_MODE_1,
 354                 .max_speed_hz   = 6000000,
 355                 .platform_data  = &tsc_platform_data,
 356         },
 357 };
 358
 359 static struct omap_uart_config apollon_uart_config __initdata = {
 360         .enabled_uarts = (1 << 0) | (0 << 1) | (0 << 2),
 361 };
 362
 363 static struct omap_usb_config apollon_usb_config __initdata = {
 364         .register_dev   = 1,
 365         .hmc_mode       = 0x14, /* 0:dev 1:host1 2:disable */
 366
 367         .pins[0]        = 6,
 368 };
 369
 370 static struct omap_lcd_config apollon_lcd_config __initdata = {
 371         .ctrl_name      = "internal",
 372 };
 373
 374 static struct omap_board_config_kernel apollon_config[] __initdata = {
 375         { OMAP_TAG_UART,        &apollon_uart_config },
 376         { OMAP_TAG_LCD,         &apollon_lcd_config },
 377 };
 378
 379 static void __init apollon_led_init(void)
 380 {
 381         /* LED0 - AA10 */
 382         omap_cfg_reg(AA10_242X_GPIO13);
 383         /* LED1  - AA6 */
 384         omap_cfg_reg(AA6_242X_GPIO14);
 385         /* LED2  - AA4 */
 386         omap_cfg_reg(AA4_242X_GPIO15);
 387
 388         if (apollon_plus()) {
 389                 /* LED3 - M15 */
 390                 omap_cfg_reg(M15_24XX_GPIO92);
 391                 /* LED4 - P20 */
 392                 omap_cfg_reg(P20_24XX_GPIO93);
 393         } else
 394                 apollon_led_data.num_leds = 3;
 395 }
 396
 397 static void __init apollon_usb_init(void)
 398 {
 399         /* USB device */
 400         /* DEVICE_SUSPEND */
 401         omap_cfg_reg(P21_242X_GPIO12);
 402         gpio_request(12, "USB suspend");
 403         gpio_direction_output(12, 0);
 404         omap_usb_init(&apollon_usb_config);
 405 }
 406
 407 static void __init apollon_tsc_init(void)
 408 {
 409         /* TSC2101 */
 410         omap_cfg_reg(N15_24XX_GPIO85);
 411         gpio_request(85, "tsc2101 irq");
 412         gpio_direction_input(85);
 413
 414         omap_cfg_reg(W14_24XX_SYS_CLKOUT);      /* mclk */
 415 }
 416
 417 static void __init apollon_cs_init(void)
 418 {
 419         unsigned long base;
 420         unsigned int rate;
 421         struct clk *l3ck;
 422         u32 value;
 423         int cs, sync = 0;
 424
 425         l3ck = clk_get(NULL, "core_l3_ck");
 426         if (IS_ERR(l3ck))
 427                 rate = 100000000;
 428         else
 429                 rate = clk_get_rate(l3ck);
 430
 431         /* CS2: OneNAND */
 432         cs = 2;
 433         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG1);
 434         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, value);
 435         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG2);
 436         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, value);
 437         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG3);
 438         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, value);
 439         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG4);
 440         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, value);
 441         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG5);
 442         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, value);
 443         value = gpmc_cs_read_reg(0, GPMC_CS_CONFIG6);
 444         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, value);
 445
 446         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG7, APOLLON_ONENAND_CS2_ADDRESS);
 447
 448         /* CS3: External NOR */
 449         cs = APOLLON_NOR_CS;
 450         if (rate >= 160000000) {
 451                 sync = 1;
 452                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, 0xe5011211);
 453                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, 0x00090b01);
 454                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, 0x00020201);
 455                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, 0x09030b03);
 456                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, 0x010a0a0c);
 457                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, 0x00000000);
 458         } else if (rate >= 130000000) {
 459                 /* Not yet know ... Use the async values */
 460                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, 0x00021201);
 461                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, 0x00121601);
 462                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, 0x00040401);
 463                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, 0x12061605);
 464                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, 0x01151317);
 465                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, 0x00000000);
 466         } else {/* rate = 100000000 */
 467                 sync = 1;
 468                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG1, 0xe1001202);
 469                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG2, 0x00151501);
 470                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG3, 0x00050501);
 471                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG4, 0x0e070e07);
 472                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG5, 0x01131F1F);
 473                 gpmc_cs_write_reg(cs, GPMC_CS_CONFIG6, 0x00000000);
 474         }
 475
 476         gpmc_cs_write_reg(cs, GPMC_CS_CONFIG7, APOLLON_EXT_CS3_ADDRESS);
 477
 478         if (gpmc_cs_request(cs, SZ_32M, &base) < 0) {
 479                 printk(KERN_ERR "Failed to request GPMC CS for external\n");
 480                 return;
 481         }
 482
 483         /* Synchronous mode */
 484         if (sync) {
 485                 void __iomem *addr = ioremap(base, SZ_32M);
 486                 writew(0xaa, addr + 0xaaa);
 487                 writew(0x55, addr + 0x554);
 488                 writew(0xc0, addr + 0x24aaa);
 489                 iounmap(addr);
 490         }
 491
 492         gpmc_cs_free(cs);
 493 }
 494
 495 static void __init omap_apollon_init(void)
 496 {
 497         apollon_cs_init();
 498         apollon_led_init();
 499         apollon_flash_init();
 500         apollon_usb_init();
 501         apollon_tsc_init();
 502
 503         /*
 504          * Make sure the serial ports are muxed on at this point.
 505          * You have to mux them off in device drivers later on
 506          * if not needed.
 507          */
 508         platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
 509         omap_board_config = apollon_config;
 510         omap_board_config_size = ARRAY_SIZE(apollon_config);
 511         omap_serial_init();
 512         omap_register_i2c_bus(1, 100, NULL, 0);
 513         omap_register_i2c_bus(2, 100, NULL, 0);
 514
 515         spi_register_board_info(apollon_spi_board_info,
 516                                 ARRAY_SIZE(apollon_spi_board_info));
 517
 518         apollon_mmc_init();
 519 }
 520
 521 static void __init omap_apollon_map_io(void)
 522 {
 523         omap2_set_globals_242x();
 524         omap2_map_common_io();
 525 }
 526
 527 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
 528         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
 529         .phys_io        = 0x48000000,
 530         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 531         .boot_params    = 0x80000100,
 532         .map_io         = omap_apollon_map_io,
 533         .init_irq       = omap_apollon_init_irq,
 534         .init_machine   = omap_apollon_init,
 535         .timer          = &omap_timer,
 536 MACHINE_END