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