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/usb.h>
  39 #include <plat/board.h>
  40 #include "common.h"
  41 #include <plat/gpmc.h>
  42
  43 #include <video/omapdss.h>
  44 #include <video/omap-panel-generic-dpi.h>
  45
  46 #include "mux.h"
  47 #include "control.h"
  48
  49 /* LED & Switch macros */
  50 #define LED0_GPIO13             13
  51 #define LED1_GPIO14             14
  52 #define LED2_GPIO15             15
  53 #define SW_ENTER_GPIO16         16
  54 #define SW_UP_GPIO17            17
  55 #define SW_DOWN_GPIO58          58
  56
  57 #define APOLLON_FLASH_CS        0
  58 #define APOLLON_ETH_CS          1
  59 #define APOLLON_ETHR_GPIO_IRQ   74
  60
  61 static struct mtd_partition apollon_partitions[] = {
  62         {
  63                 .name           = "X-Loader + U-Boot",
  64                 .offset         = 0,
  65                 .size           = SZ_128K,
  66                 .mask_flags     = MTD_WRITEABLE,
  67         },
  68         {
  69                 .name           = "params",
  70                 .offset         = MTDPART_OFS_APPEND,
  71                 .size           = SZ_128K,
  72         },
  73         {
  74                 .name           = "kernel",
  75                 .offset         = MTDPART_OFS_APPEND,
  76                 .size           = SZ_2M,
  77         },
  78         {
  79                 .name           = "rootfs",
  80                 .offset         = MTDPART_OFS_APPEND,
  81                 .size           = SZ_16M,
  82         },
  83         {
  84                 .name           = "filesystem00",
  85                 .offset         = MTDPART_OFS_APPEND,
  86                 .size           = SZ_32M,
  87         },
  88         {
  89                 .name           = "filesystem01",
  90                 .offset         = MTDPART_OFS_APPEND,
  91                 .size           = MTDPART_SIZ_FULL,
  92         },
  93 };
  94
  95 static struct onenand_platform_data apollon_flash_data = {
  96         .parts          = apollon_partitions,
  97         .nr_parts       = ARRAY_SIZE(apollon_partitions),
  98 };
  99
 100 static struct resource apollon_flash_resource[] = {
 101         [0] = {
 102                 .flags          = IORESOURCE_MEM,
 103         },
 104 };
 105
 106 static struct platform_device apollon_onenand_device = {
 107         .name           = "onenand-flash",
 108         .id             = -1,
 109         .dev            = {
 110                 .platform_data  = &apollon_flash_data,
 111         },
 112         .num_resources  = ARRAY_SIZE(apollon_flash_resource),
 113         .resource       = apollon_flash_resource,
 114 };
 115
 116 static void __init apollon_flash_init(void)
 117 {
 118         unsigned long base;
 119
 120         if (gpmc_cs_request(APOLLON_FLASH_CS, SZ_128K, &base) < 0) {
 121                 printk(KERN_ERR "Cannot request OneNAND GPMC CS\n");
 122                 return;
 123         }
 124         apollon_flash_resource[0].start = base;
 125         apollon_flash_resource[0].end   = base + SZ_128K - 1;
 126 }
 127
 128 static struct smc91x_platdata appolon_smc91x_info = {
 129         .flags  = SMC91X_USE_16BIT | SMC91X_NOWAIT,
 130         .leda   = RPC_LED_100_10,
 131         .ledb   = RPC_LED_TX_RX,
 132 };
 133
 134 static struct resource apollon_smc91x_resources[] = {
 135         [0] = {
 136                 .flags  = IORESOURCE_MEM,
 137         },
 138         [1] = {
 139                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 140         },
 141 };
 142
 143 static struct platform_device apollon_smc91x_device = {
 144         .name           = "smc91x",
 145         .id             = -1,
 146         .dev    = {
 147                 .platform_data  = &appolon_smc91x_info,
 148         },
 149         .num_resources  = ARRAY_SIZE(apollon_smc91x_resources),
 150         .resource       = apollon_smc91x_resources,
 151 };
 152
 153 static struct omap_led_config apollon_led_config[] = {
 154         {
 155                 .cdev   = {
 156                         .name   = "apollon:led0",
 157                 },
 158                 .gpio   = LED0_GPIO13,
 159         },
 160         {
 161                 .cdev   = {
 162                         .name   = "apollon:led1",
 163                 },
 164                 .gpio   = LED1_GPIO14,
 165         },
 166         {
 167                 .cdev   = {
 168                         .name   = "apollon:led2",
 169                 },
 170                 .gpio   = LED2_GPIO15,
 171         },
 172 };
 173
 174 static struct omap_led_platform_data apollon_led_data = {
 175         .nr_leds        = ARRAY_SIZE(apollon_led_config),
 176         .leds           = apollon_led_config,
 177 };
 178
 179 static struct platform_device apollon_led_device = {
 180         .name           = "omap-led",
 181         .id             = -1,
 182         .dev            = {
 183                 .platform_data  = &apollon_led_data,
 184         },
 185 };
 186
 187 static struct platform_device *apollon_devices[] __initdata = {
 188         &apollon_onenand_device,
 189         &apollon_smc91x_device,
 190         &apollon_led_device,
 191 };
 192
 193 static inline void __init apollon_init_smc91x(void)
 194 {
 195         unsigned long base;
 196
 197         unsigned int rate;
 198         struct clk *gpmc_fck;
 199         int eth_cs;
 200         int err;
 201
 202         gpmc_fck = clk_get(NULL, "gpmc_fck");   /* Always on ENABLE_ON_INIT */
 203         if (IS_ERR(gpmc_fck)) {
 204                 WARN_ON(1);
 205                 return;
 206         }
 207
 208         clk_enable(gpmc_fck);
 209         rate = clk_get_rate(gpmc_fck);
 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(APOLLON_ETH_CS, SZ_16M, &base) < 0) {
 237                 printk(KERN_ERR "Failed to request GPMC CS for smc91x\n");
 238                 goto out;
 239         }
 240         apollon_smc91x_resources[0].start = base + 0x300;
 241         apollon_smc91x_resources[0].end   = base + 0x30f;
 242         udelay(100);
 243
 244         omap_mux_init_gpio(APOLLON_ETHR_GPIO_IRQ, 0);
 245         err = gpio_request_one(APOLLON_ETHR_GPIO_IRQ, GPIOF_IN, "SMC91x irq");
 246         if (err) {
 247                 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
 248                         APOLLON_ETHR_GPIO_IRQ);
 249                 gpmc_cs_free(APOLLON_ETH_CS);
 250         }
 251 out:
 252         clk_disable(gpmc_fck);
 253         clk_put(gpmc_fck);
 254 }
 255
 256 static struct omap_usb_config apollon_usb_config __initdata = {
 257         .register_dev   = 1,
 258         .hmc_mode       = 0x14, /* 0:dev 1:host1 2:disable */
 259
 260         .pins[0]        = 6,
 261 };
 262
 263 static struct panel_generic_dpi_data apollon_panel_data = {
 264         .name                   = "apollon",
 265 };
 266
 267 static struct omap_dss_device apollon_lcd_device = {
 268         .name                   = "lcd",
 269         .driver_name            = "generic_dpi_panel",
 270         .type                   = OMAP_DISPLAY_TYPE_DPI,
 271         .phy.dpi.data_lines     = 18,
 272         .data                   = &apollon_panel_data,
 273 };
 274
 275 static struct omap_dss_device *apollon_dss_devices[] = {
 276         &apollon_lcd_device,
 277 };
 278
 279 static struct omap_dss_board_info apollon_dss_data = {
 280         .num_devices    = ARRAY_SIZE(apollon_dss_devices),
 281         .devices        = apollon_dss_devices,
 282         .default_device = &apollon_lcd_device,
 283 };
 284
 285 static struct gpio apollon_gpio_leds[] __initdata = {
 286         { LED0_GPIO13, GPIOF_OUT_INIT_LOW, "LED0" }, /* LED0 - AA10 */
 287         { LED1_GPIO14, GPIOF_OUT_INIT_LOW, "LED1" }, /* LED1 - AA6  */
 288         { LED2_GPIO15, GPIOF_OUT_INIT_LOW, "LED2" }, /* LED2 - AA4  */
 289 };
 290
 291 static void __init apollon_led_init(void)
 292 {
 293         omap_mux_init_signal("vlynq_clk.gpio_13", 0);
 294         omap_mux_init_signal("vlynq_rx1.gpio_14", 0);
 295         omap_mux_init_signal("vlynq_rx0.gpio_15", 0);
 296
 297         gpio_request_array(apollon_gpio_leds, ARRAY_SIZE(apollon_gpio_leds));
 298 }
 299
 300 static void __init apollon_usb_init(void)
 301 {
 302         /* USB device */
 303         /* DEVICE_SUSPEND */
 304         omap_mux_init_signal("mcbsp2_clkx.gpio_12", 0);
 305         gpio_request_one(12, GPIOF_OUT_INIT_LOW, "USB suspend");
 306         omap2_usbfs_init(&apollon_usb_config);
 307 }
 308
 309 #ifdef CONFIG_OMAP_MUX
 310 static struct omap_board_mux board_mux[] __initdata = {
 311         { .reg_offset = OMAP_MUX_TERMINATOR },
 312 };
 313 #endif
 314
 315 static void __init omap_apollon_init(void)
 316 {
 317         u32 v;
 318
 319         omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
 320
 321         apollon_init_smc91x();
 322         apollon_led_init();
 323         apollon_flash_init();
 324         apollon_usb_init();
 325
 326         /* REVISIT: where's the correct place */
 327         omap_mux_init_signal("sys_nirq", OMAP_PULL_ENA | OMAP_PULL_UP);
 328
 329         /* LCD PWR_EN */
 330         omap_mux_init_signal("mcbsp2_dr.gpio_11", OMAP_PULL_ENA | OMAP_PULL_UP);
 331
 332         /* Use Interal loop-back in MMC/SDIO Module Input Clock selection */
 333         v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
 334         v |= (1 << 24);
 335         omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0);
 336
 337         /*
 338          * Make sure the serial ports are muxed on at this point.
 339          * You have to mux them off in device drivers later on
 340          * if not needed.
 341          */
 342         apollon_smc91x_resources[1].start = gpio_to_irq(APOLLON_ETHR_GPIO_IRQ);
 343         apollon_smc91x_resources[1].end = gpio_to_irq(APOLLON_ETHR_GPIO_IRQ);
 344         platform_add_devices(apollon_devices, ARRAY_SIZE(apollon_devices));
 345         omap_serial_init();
 346         omap_sdrc_init(NULL, NULL);
 347         omap_display_init(&apollon_dss_data);
 348 }
 349
 350 MACHINE_START(OMAP_APOLLON, "OMAP24xx Apollon")
 351         /* Maintainer: Kyungmin Park <kyungmin.park@samsung.com> */
 352         .atag_offset    = 0x100,
 353         .reserve        = omap_reserve,
 354         .map_io         = omap242x_map_io,
 355         .init_early     = omap2420_init_early,
 356         .init_irq       = omap2_init_irq,
 357         .handle_irq     = omap2_intc_handle_irq,
 358         .init_machine   = omap_apollon_init,
 359         .timer          = &omap2_timer,
 360         .restart        = omap_prcm_restart,
 361 MACHINE_END