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_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         GPIO13_GPIO,    /* GPIO13_COLIBRI_PXA300_SD_DETECT */
  45
  46         /* UHC */
  47         GPIO0_2_USBH_PEN,
  48         GPIO1_2_USBH_PWR,
  49         GPIO77_USB_P3_1,
  50         GPIO78_USB_P3_2,
  51         GPIO79_USB_P3_3,
  52         GPIO80_USB_P3_4,
  53         GPIO81_USB_P3_5,
  54         GPIO82_USB_P3_6,
  55
  56         /* I2C */
  57         GPIO21_I2C_SCL,
  58         GPIO22_I2C_SDA,
  59 };
  60 #else
  61 static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = {};
  62 #endif
  63
  64 #if defined(CONFIG_AX88796)
  65 #define COLIBRI_ETH_IRQ_GPIO    mfp_to_gpio(GPIO26_GPIO)
  66 /*
  67  * Asix AX88796 Ethernet
  68  */
  69 static struct ax_plat_data colibri_asix_platdata = {
  70         .flags          = 0, /* defined later */
  71         .wordlength     = 2,
  72 };
  73
  74 static struct resource colibri_asix_resource[] = {
  75         [0] = {
  76                 .start = PXA3xx_CS2_PHYS,
  77                 .end   = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
  78                 .flags = IORESOURCE_MEM,
  79         },
  80         [1] = {
  81                 .start = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
  82                 .end   = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
  83                 .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
  84         }
  85 };
  86
  87 static struct platform_device asix_device = {
  88         .name           = "ax88796",
  89         .id             = 0,
  90         .num_resources  = ARRAY_SIZE(colibri_asix_resource),
  91         .resource       = colibri_asix_resource,
  92         .dev            = {
  93                 .platform_data = &colibri_asix_platdata
  94         }
  95 };
  96
  97 static mfp_cfg_t colibri_pxa300_eth_pin_config[] __initdata = {
  98         GPIO1_nCS2,                     /* AX88796 chip select */
  99         GPIO26_GPIO | MFP_PULL_HIGH     /* AX88796 IRQ */
 100 };
 101
 102 static void __init colibri_pxa300_init_eth(void)
 103 {
 104         colibri_pxa3xx_init_eth(&colibri_asix_platdata);
 105         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_eth_pin_config));
 106         platform_device_register(&asix_device);
 107 }
 108 #else
 109 static inline void __init colibri_pxa300_init_eth(void) {}
 110 #endif /* CONFIG_AX88796 */
 111
 112 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 113 static mfp_cfg_t colibri_pxa300_lcd_pin_config[] __initdata = {
 114         GPIO54_LCD_LDD_0,
 115         GPIO55_LCD_LDD_1,
 116         GPIO56_LCD_LDD_2,
 117         GPIO57_LCD_LDD_3,
 118         GPIO58_LCD_LDD_4,
 119         GPIO59_LCD_LDD_5,
 120         GPIO60_LCD_LDD_6,
 121         GPIO61_LCD_LDD_7,
 122         GPIO62_LCD_LDD_8,
 123         GPIO63_LCD_LDD_9,
 124         GPIO64_LCD_LDD_10,
 125         GPIO65_LCD_LDD_11,
 126         GPIO66_LCD_LDD_12,
 127         GPIO67_LCD_LDD_13,
 128         GPIO68_LCD_LDD_14,
 129         GPIO69_LCD_LDD_15,
 130         GPIO70_LCD_LDD_16,
 131         GPIO71_LCD_LDD_17,
 132         GPIO62_LCD_CS_N,
 133         GPIO72_LCD_FCLK,
 134         GPIO73_LCD_LCLK,
 135         GPIO74_LCD_PCLK,
 136         GPIO75_LCD_BIAS,
 137         GPIO76_LCD_VSYNC,
 138 };
 139
 140 static void __init colibri_pxa300_init_lcd(void)
 141 {
 142         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_lcd_pin_config));
 143 }
 144
 145 #else
 146 static inline void colibri_pxa300_init_lcd(void) {}
 147 #endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */
 148
 149 #if defined(CONFIG_SND_AC97_CODEC) || defined(CONFIG_SND_AC97_CODEC_MODULE)
 150 static mfp_cfg_t colibri_pxa310_ac97_pin_config[] __initdata = {
 151         GPIO24_AC97_SYSCLK,
 152         GPIO23_AC97_nACRESET,
 153         GPIO25_AC97_SDATA_IN_0,
 154         GPIO27_AC97_SDATA_OUT,
 155         GPIO28_AC97_SYNC,
 156         GPIO29_AC97_BITCLK
 157 };
 158
 159 static inline void __init colibri_pxa310_init_ac97(void)
 160 {
 161         /* no AC97 codec on Colibri PXA300 */
 162         if (!cpu_is_pxa310())
 163                 return;
 164
 165         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa310_ac97_pin_config));
 166         pxa_set_ac97_info(NULL);
 167 }
 168 #else
 169 static inline void colibri_pxa310_init_ac97(void) {}
 170 #endif
 171
 172 void __init colibri_pxa300_init(void)
 173 {
 174         colibri_pxa300_init_eth();
 175         colibri_pxa3xx_init_nand();
 176         colibri_pxa300_init_lcd();
 177         colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO39_GPIO));
 178         colibri_pxa310_init_ac97();
 179
 180         /* Evalboard init */
 181         pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_evalboard_pin_config));
 182         colibri_evalboard_init();
 183 }
 184
 185 MACHINE_START(COLIBRI300, "Toradex Colibri PXA300")
 186         .atag_offset    = 0x100,
 187         .init_machine   = colibri_pxa300_init,
 188         .map_io         = pxa3xx_map_io,
 189         .init_irq       = pxa3xx_init_irq,
 190         .handle_irq     = pxa3xx_handle_irq,
 191         .timer          = &pxa_timer,
 192 MACHINE_END
 193