Pileus Git - ~andy/linux/blob - 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-omap/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 #include <linux/smc91x.h>
  30 #include <linux/gpio.h>
  31
  32 #include <mach/hardware.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35 #include <asm/mach/flash.h>
  36
  37 #include <plat/led.h>
  38 #include <plat/board.h>
  39 #include "common.h"
  40 #include <plat/gpmc.h>
  41
  42 #include <video/omapdss.h>
  43 #include <video/omap-panel-generic-dpi.h>
  44
  45 #include "mux.h"
  46 #include "control.h"
  47
  48 /* LED & Switch macros */
  49 #define LED0_GPIO13             13
  50 #define LED1_GPIO14             14
  51 #define LED2_GPIO15             15
  52 #define SW_ENTER_GPIO16         16
  53 #define SW_UP_GPIO17            17
  54 #define SW_DOWN_GPIO58          58
  55
  56 #define APOLLON_FLASH_CS        0
  57 #define APOLLON_ETH_CS          1
  58 #define APOLLON_ETHR_GPIO_IRQ   74
  59
  60 static struct mtd_partition apollon_partitions[] = {
  61         {
  62                 .name           = "X-Loader + U-Boot",
  63                 .offset         = 0,
  64                 .size           = SZ_128K,
  65                 .mask_flags     = MTD_WRITEABLE,
  66         },
  67         {
  68                 .name           = "params",
  69                 .offset         = MTDPART_OFS_APPEND,
  70                 .size           = SZ_128K,
  71         },
  72         {
  73                 .name           = "kernel",
  74                 .offset         = MTDPART_OFS_APPEND,
  75                 .size           = SZ_2M,
  76         },
  77         {
  78                 .name           = "rootfs",
  79                 .offset         = MTDPART_OFS_APPEND,
  80                 .size           = SZ_16M,
  81         },
  82         {
  83                 .name           = "filesystem00",
  84                 .offset         = MTDPART_OFS_APPEND,
  85                 .size           = SZ_32M,
  86         },
  87         {
  88                 .name           = "filesystem01",
  89                 .offset         = MTDPART_OFS_APPEND,
  90                 .size           = MTDPART_SIZ_FULL,
  91         },
  92 };
  93
  94 static struct onenand_platform_data apollon_flash_data = {
  95         .parts          = apollon_partitions,
  96         .nr_parts       = ARRAY_SIZE(apollon_partitions),
  97 };
  98
  99 static struct resource apollon_flash_resource[] = {
 100         [0] = {
 101                 .flags          = IORESOURCE_MEM,
 102         },
 103 };
 104
 105 static struct platform_device apollon_onenand_device = {
 106         .name           = "onenand-flash",
 107         .id             = -1,
 108         .dev            = {
 109                 .platform_data  = &apollon_flash_data,
 110         },
 111         .num_resources  = ARRAY_SIZE(apollon_flash_resource),
 112         .resource       = apollon_flash_resource,
 113 };
 114
 115 static void __init apollon_flash_init(void)
 116 {
 117         unsigned long base;
 118
 119         if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) {
 120                 printk(KERN_ERR "Cannot request OneNAND GPMC CS\n");
 121                 return;
 122         }
 123         apollon_flash_resource[0].start = base;
 124         apollon_flash_resource[0].end   = base + SZ_128K - 1;
 125 }
 126
 127 static struct smc91x_platdata appolon_smc91x_info = {
 128         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
 129         .leda   = RPC_LED_100_10,
 130         .ledb   = RPC_LED_TX_RX,
 131 };
 132
 133 static struct resource apollon_smc91x_resources[] = {
 134         [0] = {
 135                 .flags  = IORESOURCE_MEM,
 136         },
 137         [1] = {
 138                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 139         },
 140 };
 141
 142 static struct platform_device apollon_smc91x_device = {
 143         .name           = "smc91x",
 144         .id             = -1,
 145         .dev    = {
 146                 .platform_data  = &appolon_smc91x_info,
 147         },
 148         .num_resources  = ARRAY_SIZE(apollon_smc91x_resources),
 149         .resource       = apollon_smc91x_resources,
 150 };
 151
 152 static struct omap_led_config apollon_led_config[] = {
 153         {
 154                 .cdev   = {
 155                         .name   = "apollon:led0",
 156                 },
 157                 .gpio   = LED0_GPIO13,
 158         },
 159         {
 160                 .cdev   = {
 161                         .name   = "apollon:led1",
 162                 },
 163                 .gpio   = LED1_GPIO14,
 164         },
 165         {
 166                 .cdev   = {
 167                         .name   = "apollon:led2",
 168                 },
 169                 .gpio   = LED2_GPIO15,
 170         },
 171 };
 172
 173 static struct omap_led_platform_data apollon_led_data = {
 174         .nr_leds        = ARRAY_SIZE(apollon_led_config),
 175         .leds           = apollon_led_config,
 176 };
 177
 178 static struct platform_device apollon_led_device = {
 179         .name           = "omap-led",
 180         .id             = -1,
 181         .dev            = {
 182                 .platform_data  = &apollon_led_data,
 183         },
 184 };
 185
 186 static struct platform_device *apollon_devices[] __initdata = {
 187         &apollon_onenand_device,
 188         &apollon_smc91x_device,
 189         &apollon_led_device,
 190 };
 191
 192 static inline void __init apollon_init_smc91x(void)
 193 {
 194         unsigned long base;
 195
 196         unsigned int rate;
 197         struct clk *gpmc_fck;
 198         int eth_cs;
 199         int err;
 200
 201         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
 202         if (IS_ERR(gpmc_fck)) {
 203                 WARN_ON(1);
 204                 return;
 205         }
 206
 207         clk_enable(gpmc_fck);
 208         rate = clk_get_rate(gpmc_fck);
 209
 210         eth_cs = APOLLON_ETH_CS;
 211
 212         /* Make sure CS1 timings are correct */
 213         gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1, 0x00011200);
 214
 215         if (rate >= 160000000) {
 216                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
 217                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
 218                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
 219                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 220                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 221         } else if (rate >= 130000000) {
 222                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 223                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 224                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 225                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
 226                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
 227         } else {/* rate = 100000000 */
 228                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
 229                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
 230                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
 231                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
 232                 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
 233         }
 234
 235         if (gpmc_cs_request(APOLLON_ETH_CS, SZ_16M, &base) < 0) {
 236                 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
 237                 goto out;
 238         }
 239         apollon_smc91x_resources[0].start = base + 0x300;
 240         apollon_smc91x_resources[0].end   = base + 0x30f;
 241         udelay(100);
 242
 243         omap_mux_init_gpio(APOLLON_ETHR_GPIO_IRQ, 0);
 244         err = gpio_request_one(APOLLON_ETHR_GPIO_IRQ, GPIOF_IN, "SMC91x irq");
 245         if (err) {
 246                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 247                         APOLLON_ETHR_GPIO_IRQ);
 248                 gpmc_cs_free(APOLLON_ETH_CS);
 249         }
 250 out:
 251         clk_disable(gpmc_fck);
 252         clk_put(gpmc_fck);
 253 }
 254
 255 static struct panel_generic_dpi_data apollon_panel_data = {
 256         .name                   = "apollon",
 257 };
 258
 259 static struct omap_dss_device apollon_lcd_device = {
 260         .name                   = "lcd",
 261         .driver_name            = "generic_dpi_panel",
 262         .type                   = OMAP_DISPLAY_TYPE_DPI,
 263         .phy.dpi.data_lines     = 18,
 264         .data                   = &apollon_panel_data,
 265 };
 266
 267 static struct omap_dss_device *apollon_dss_devices[] = {
 268         &apollon_lcd_device,
 269 };
 270
 271 static struct omap_dss_board_info apollon_dss_data = {
 272         .num_devices    = ARRAY_SIZE(apollon_dss_devices),
 273         .devices        = apollon_dss_devices,
 274         .default_device = &apollon_lcd_device,
 275 };
 276
 277 static struct gpio apollon_gpio_leds[] __initdata = {
 278         { LED0_GPIO13, GPIOF_OUT_INIT_LOW, "LED0" }, /* LED0 - AA10 */
 279         { LED1_GPIO14, GPIOF_OUT_INIT_LOW, "LED1" }, /* LED1 - AA6  */
 280         { LED2_GPIO15, GPIOF_OUT_INIT_LOW, "LED2" }, /* LED2 - AA4  */
 281 };
 282
 283 static void __init apollon_led_init(void)
 284 {
 285         omap_mux_init_signal("vlynq_clk.gpio_13", 0);
 286         omap_mux_init_signal("vlynq_rx1.gpio_14", 0);
 287         omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
 288
 289         gpio_request_array(apollon_gpio_leds, ARRAY_SIZE(apollon_gpio_leds));
 290 }
 291
 292 #ifdef CONFIG_OMAP_MUX
 293 static struct omap_board_mux board_mux[] __initdata = {
 294         { .reg_offset = OMAP_MUX_TERMINATOR },
 295 };
 296 #endif
 297
 298 static void __init omap_apollon_init(void)
 299 {
 300         u32 v;
 301
 302         omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
 303
 304         apollon_init_smc91x();
 305         apollon_led_init();
 306         apollon_flash_init();
 307
 308         /* REVISIT: where's the correct place */
 309         omap_mux_init_signal("sys_nirq", OMAP_PULL_ENA | OMAP_PULL_UP);
 310
 311         /* LCD PWR_EN */
 312         omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
 313
 314         /* Use Internal loop-back in MMC/SDIO Module Input Clock selection */
 315         v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
 316         v |= (1 << 24);
 317         omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
 318
 319         /*
 320          * Make sure the serial ports are muxed on at this point.
 321          * You have to mux them off in device drivers later on
 322          * if not needed.
 323          */
 324         apollon_smc91x_resources[1].start = gpio_to_irq(APOLLON_ETHR_GPIO_IRQ);
 325         apollon_smc91x_resources[1].end = gpio_to_irq(APOLLON_ETHR_GPIO_IRQ);
 326         platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
 327         omap_serial_init();
 328         omap_sdrc_init(NULL, NULL);
 329         omap_display_init(&apollon_dss_data);
 330 }
 331
 332 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
 333         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
 334         .atag_offset    = 0x100,
 335         .reserve        = omap_reserve,
 336         .map_io         = omap242x_map_io,
 337         .init_early     = omap2420_init_early,
 338         .init_irq       = omap2_init_irq,
 339         .handle_irq     = omap2_intc_handle_irq,
 340         .init_machine   = omap_apollon_init,
 341         .init_late      = omap2420_init_late,
 342         .timer          = &omap2_timer,
 343         .restart        = omap_prcm_restart,
 344 MACHINE_END