release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-pxa/colibri-pxa270.c

   1 /*
   2  *  linux/arch/arm/mach-pxa/colibri-pxa270.c
   3  *
   4  *  Support for Toradex PXA270 based Colibri module
   5  *  Daniel Mack <daniel@caiaq.de>
   6  *  Marek Vasut <marek.vasut@gmail.com>
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License version 2 as
  10  *  published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/init.h>
  14 #include <linux/interrupt.h>
  15 #include <linux/kernel.h>
  16 #include <linux/mtd/mtd.h>
  17 #include <linux/mtd/partitions.h>
  18 #include <linux/mtd/physmap.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/sysdev.h>
  21 #include <linux/ucb1400.h>
  22
  23 #include <asm/mach/arch.h>
  24 #include <asm/mach/flash.h>
  25 #include <asm/mach-types.h>
  26 #include <asm/sizes.h>
  27
  28 #include <mach/audio.h>
  29 #include <mach/colibri.h>
  30 #include <mach/pxa27x.h>
  31
  32 #include "devices.h"
  33 #include "generic.h"
  34
  35 /******************************************************************************
  36  * Pin configuration
  37  ******************************************************************************/
  38 static mfp_cfg_t colibri_pxa270_pin_config[] __initdata = {
  39         /* Ethernet */
  40         GPIO78_nCS_2,   /* Ethernet CS */
  41         GPIO114_GPIO,   /* Ethernet IRQ */
  42
  43         /* AC97 */
  44         GPIO28_AC97_BITCLK,
  45         GPIO29_AC97_SDATA_IN_0,
  46         GPIO30_AC97_SDATA_OUT,
  47         GPIO31_AC97_SYNC,
  48         GPIO95_AC97_nRESET,
  49         GPIO98_AC97_SYSCLK,
  50         GPIO113_GPIO,   /* Touchscreen IRQ */
  51 };
  52
  53 /******************************************************************************
  54  * NOR Flash
  55  ******************************************************************************/
  56 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
  57 static struct mtd_partition colibri_partitions[] = {
  58         {
  59                 .name =         "Bootloader",
  60                 .offset =       0x00000000,
  61                 .size =         0x00040000,
  62                 .mask_flags =   MTD_WRITEABLE   /* force read-only */
  63         }, {
  64                 .name =         "Kernel",
  65                 .offset =       0x00040000,
  66                 .size =         0x00400000,
  67                 .mask_flags =   0
  68         }, {
  69                 .name =         "Rootfs",
  70                 .offset =       0x00440000,
  71                 .size =         MTDPART_SIZ_FULL,
  72                 .mask_flags =   0
  73         }
  74 };
  75
  76 static struct physmap_flash_data colibri_flash_data[] = {
  77         {
  78                 .width          = 4,                    /* bankwidth in bytes */
  79                 .parts          = colibri_partitions,
  80                 .nr_parts       = ARRAY_SIZE(colibri_partitions)
  81         }
  82 };
  83
  84 static struct resource colibri_pxa270_flash_resource = {
  85         .start  = PXA_CS0_PHYS,
  86         .end    = PXA_CS0_PHYS + SZ_32M - 1,
  87         .flags  = IORESOURCE_MEM,
  88 };
  89
  90 static struct platform_device colibri_pxa270_flash_device = {
  91         .name   = "physmap-flash",
  92         .id     = 0,
  93         .dev    = {
  94                 .platform_data = colibri_flash_data,
  95         },
  96         .resource = &colibri_pxa270_flash_resource,
  97         .num_resources = 1,
  98 };
  99
 100 static void __init colibri_pxa270_nor_init(void)
 101 {
 102         platform_device_register(&colibri_pxa270_flash_device);
 103 }
 104 #else
 105 static inline void colibri_pxa270_nor_init(void) {}
 106 #endif
 107
 108 /******************************************************************************
 109  * Ethernet
 110  ******************************************************************************/
 111 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 112 static struct resource colibri_pxa270_dm9000_resources[] = {
 113         {
 114                 .start  = PXA_CS2_PHYS,
 115                 .end    = PXA_CS2_PHYS + 3,
 116                 .flags  = IORESOURCE_MEM,
 117         },
 118         {
 119                 .start  = PXA_CS2_PHYS + 4,
 120                 .end    = PXA_CS2_PHYS + 4 + 500,
 121                 .flags  = IORESOURCE_MEM,
 122         },
 123         {
 124                 .start  = gpio_to_irq(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 125                 .end    = gpio_to_irq(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 126                 .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 127         },
 128 };
 129
 130 static struct platform_device colibri_pxa270_dm9000_device = {
 131         .name           = "dm9000",
 132         .id             = -1,
 133         .num_resources  = ARRAY_SIZE(colibri_pxa270_dm9000_resources),
 134         .resource       = colibri_pxa270_dm9000_resources,
 135 };
 136
 137 static void __init colibri_pxa270_eth_init(void)
 138 {
 139         platform_device_register(&colibri_pxa270_dm9000_device);
 140 }
 141 #else
 142 static inline void colibri_pxa270_eth_init(void) {}
 143 #endif
 144
 145 /******************************************************************************
 146  * Audio and Touchscreen
 147  ******************************************************************************/
 148 #if     defined(CONFIG_TOUCHSCREEN_UCB1400) || defined(CONFIG_TOUCHSCREEN_UCB1400_MODULE)
 149 static pxa2xx_audio_ops_t colibri_pxa270_ac97_pdata = {
 150         .reset_gpio     = 95,
 151 };
 152
 153 static struct ucb1400_pdata colibri_pxa270_ucb1400_pdata = {
 154         .irq            = gpio_to_irq(GPIO113_COLIBRI_PXA270_TS_IRQ),
 155 };
 156
 157 static struct platform_device colibri_pxa270_ucb1400_device = {
 158         .name           = "ucb1400_core",
 159         .id             = -1,
 160         .dev            = {
 161                 .platform_data = &colibri_pxa270_ucb1400_pdata,
 162         },
 163 };
 164
 165 static void __init colibri_pxa270_tsc_init(void)
 166 {
 167         pxa_set_ac97_info(&colibri_pxa270_ac97_pdata);
 168         platform_device_register(&colibri_pxa270_ucb1400_device);
 169 }
 170 #else
 171 static inline void colibri_pxa270_tsc_init(void) {}
 172 #endif
 173
 174 static int colibri_pxa270_baseboard;
 175 core_param(colibri_pxa270_baseboard, colibri_pxa270_baseboard, int, 0444);
 176
 177 static void __init colibri_pxa270_init(void)
 178 {
 179         pxa2xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa270_pin_config));
 180
 181         colibri_pxa270_nor_init();
 182         colibri_pxa270_eth_init();
 183         colibri_pxa270_tsc_init();
 184
 185         switch (colibri_pxa270_baseboard) {
 186         case COLIBRI_PXA270_EVALBOARD:
 187                 colibri_pxa270_evalboard_init();
 188                 break;
 189         case COLIBRI_PXA270_INCOME:
 190                 colibri_pxa270_income_boardinit();
 191                 break;
 192         default:
 193                 printk(KERN_ERR "Illegal colibri_pxa270_baseboard type %d\n",
 194                                 colibri_pxa270_baseboard);
 195         }
 196 }
 197
 198 /* The "Income s.r.o. SH-Dmaster PXA270 SBC" board can be booted either
 199  * with the INCOME mach type or with COLIBRI and the kernel parameter
 200  * "colibri_pxa270_baseboard=1"
 201  */
 202 static void __init colibri_pxa270_income_init(void)
 203 {
 204         colibri_pxa270_baseboard = COLIBRI_PXA270_INCOME;
 205         colibri_pxa270_init();
 206 }
 207
 208 MACHINE_START(COLIBRI, "Toradex Colibri PXA270")
 209         .phys_io        = 0x40000000,
 210         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 211         .boot_params    = COLIBRI_SDRAM_BASE + 0x100,
 212         .init_machine   = colibri_pxa270_init,
 213         .map_io         = pxa_map_io,
 214         .init_irq       = pxa27x_init_irq,
 215         .timer          = &pxa_timer,
 216 MACHINE_END
 217
 218 MACHINE_START(INCOME, "Income s.r.o. SH-Dmaster PXA270 SBC")
 219         .phys_io        = 0x40000000,
 220         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 221         .boot_params    = 0xa0000100,
 222         .init_machine   = colibri_pxa270_income_init,
 223         .map_io         = pxa_map_io,
 224         .init_irq       = pxa27x_init_irq,
 225         .timer          = &pxa_timer,
 226 MACHINE_END