arch/arm/mach-pxa/colibri-pxa300.c

   1 /*
   2  *  arch/arm/mach-pxa/colibri-pxa300.c
   3  *
   4  *  Support for Toradex PXA300/310 based Colibri module
   5  *
   6  *  Daniel Mack <daniel@caiaq.de>
   7  *  Matthias Meier <matthias.j.meier@gmx.net>
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License version 2 as
  11  *  published by the Free Software Foundation.
  12  */
  13
  14 #include <linux/init.h>
  15 #include <linux/kernel.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/gpio.h>
  18 #include <linux/interrupt.h>
  19
  20 #include <asm/mach-types.h>
  21 #include <asm/sizes.h>
  22 #include <asm/mach/arch.h>
  23 #include <asm/mach/irq.h>
  24
  25 #include <mach/pxa300.h>
  26 #include <mach/colibri.h>
  27 #include <mach/ohci.h>
  28 #include <mach/pxafb.h>
  29 #include <mach/audio.h>
  30
  31 #include "generic.h"
  32 #include "devices.h"
  33
  34
  35 #ifdef CONFIG_MACH_COLIBRI_PXA270_EVALBOARD
  36 static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = {
  37         /* MMC */
  38         GPIO7_MMC1_CLK,
  39         GPIO14_MMC1_CMD,
  40         GPIO3_MMC1_DAT0,
  41         GPIO4_MMC1_DAT1,
  42         GPIO5_MMC1_DAT2,
  43         GPIO6_MMC1_DAT3,
  44         GPIO39_GPIO,    /* SD detect */
  45
  46         /* UHC */
  47         GPIO0_2_USBH_PEN,
  48         GPIO1_2_USBH_PWR,
  49
  50         /* I2C */
  51         GPIO21_I2C_SCL,
  52         GPIO22_I2C_SDA,
  53 };
  54 #else
  55 static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = {};
  56 #endif
  57
  58 #if defined(CONFIG_AX88796)
  59 #define COLIBRI_ETH_IRQ_GPIO    mfp_to_gpio(GPIO26_GPIO)
  60 /*
  61  * Asix AX88796 Ethernet
  62  */
  63 static struct ax_plat_data colibri_asix_platdata = {
  64         .flags          = 0, /* defined later */
  65         .wordlength     = 2,
  66 };
  67
  68 static struct resource colibri_asix_resource[] = {
  69         [0] = {
  70                 .start = PXA3xx_CS2_PHYS,
  71                 .end   = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
  72                 .flags = IORESOURCE_MEM,
  73         },
  74         [1] = {
  75                 .start = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
  76                 .end   = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
  77                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
  78         }
  79 };
  80
  81 static struct platform_device asix_device = {
  82         .name           = "ax88796",
  83         .id             = 0,
  84         .num_resources  = ARRAY_SIZE(colibri_asix_resource),
  85         .resource       = colibri_asix_resource,
  86         .dev            = {
  87                 .platform_data = &colibri_asix_platdata
  88         }
  89 };
  90
  91 static mfp_cfg_t colibri_pxa300_eth_pin_config[] __initdata = {
  92         GPIO1_nCS2,                     /* AX88796 chip select */
  93         GPIO26_GPIO | MFP_PULL_HIGH     /* AX88796 IRQ */
  94 };
  95
  96 static void __init colibri_pxa300_init_eth(void)
  97 {
  98         colibri_pxa3xx_init_eth(&colibri_asix_platdata);
  99         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_eth_pin_config));
 100         platform_device_register(&asix_device);
 101 }
 102 #else
 103 static inline void __init colibri_pxa300_init_eth(void) {}
 104 #endif /* CONFIG_AX88796 */
 105
 106 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 107 static mfp_cfg_t colibri_pxa300_lcd_pin_config[] __initdata = {
 108         GPIO54_LCD_LDD_0,
 109         GPIO55_LCD_LDD_1,
 110         GPIO56_LCD_LDD_2,
 111         GPIO57_LCD_LDD_3,
 112         GPIO58_LCD_LDD_4,
 113         GPIO59_LCD_LDD_5,
 114         GPIO60_LCD_LDD_6,
 115         GPIO61_LCD_LDD_7,
 116         GPIO62_LCD_LDD_8,
 117         GPIO63_LCD_LDD_9,
 118         GPIO64_LCD_LDD_10,
 119         GPIO65_LCD_LDD_11,
 120         GPIO66_LCD_LDD_12,
 121         GPIO67_LCD_LDD_13,
 122         GPIO68_LCD_LDD_14,
 123         GPIO69_LCD_LDD_15,
 124         GPIO70_LCD_LDD_16,
 125         GPIO71_LCD_LDD_17,
 126         GPIO62_LCD_CS_N,
 127         GPIO72_LCD_FCLK,
 128         GPIO73_LCD_LCLK,
 129         GPIO74_LCD_PCLK,
 130         GPIO75_LCD_BIAS,
 131         GPIO76_LCD_VSYNC,
 132 };
 133
 134 static void __init colibri_pxa300_init_lcd(void)
 135 {
 136         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_lcd_pin_config));
 137 }
 138
 139 #else
 140 static inline void colibri_pxa300_init_lcd(void) {}
 141 #endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */
 142
 143 #if defined(CONFIG_SND_AC97_CODEC) || defined(CONFIG_SND_AC97_CODEC_MODULE)
 144 static mfp_cfg_t colibri_pxa310_ac97_pin_config[] __initdata = {
 145         GPIO24_AC97_SYSCLK,
 146         GPIO23_AC97_nACRESET,
 147         GPIO25_AC97_SDATA_IN_0,
 148         GPIO27_AC97_SDATA_OUT,
 149         GPIO28_AC97_SYNC,
 150         GPIO29_AC97_BITCLK
 151 };
 152
 153 static inline void __init colibri_pxa310_init_ac97(void)
 154 {
 155         /* no AC97 codec on Colibri PXA300 */
 156         if (!cpu_is_pxa310())
 157                 return;
 158
 159         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa310_ac97_pin_config));
 160         pxa_set_ac97_info(NULL);
 161 }
 162 #else
 163 static inline void colibri_pxa310_init_ac97(void) {}
 164 #endif
 165
 166 void __init colibri_pxa300_init(void)
 167 {
 168         colibri_pxa300_init_eth();
 169         colibri_pxa3xx_init_nand();
 170         colibri_pxa300_init_lcd();
 171         colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO39_GPIO));
 172         colibri_pxa310_init_ac97();
 173
 174         /* Evalboard init */
 175         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_evalboard_pin_config));
 176         colibri_pxa270_evalboard_init();
 177 }
 178
 179 MACHINE_START(COLIBRI300, "Toradex Colibri PXA300")
 180         .boot_params    = COLIBRI_SDRAM_BASE + 0x100,
 181         .init_machine   = colibri_pxa300_init,
 182         .map_io         = pxa3xx_map_io,
 183         .init_irq       = pxa3xx_init_irq,
 184         .timer          = &pxa_timer,
 185 MACHINE_END
 186