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