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colibri-pxa300.c

/*
 *  arch/arm/mach-pxa/colibri-pxa300.c
 *
 *  Support for Toradex PXA300/310 based Colibri module
 *
 *  Daniel Mack <daniel@caiaq.de>
 *  Matthias Meier <matthias.j.meier@gmx.net>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License version 2 as
 *  published by the Free Software Foundation.
 */

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/interrupt.h>

#include <asm/mach-types.h>
#include <asm/sizes.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>

#include <mach/pxa300.h>
#include <mach/colibri.h>
#include <mach/ohci.h>
#include <mach/pxafb.h>
#include <mach/audio.h>

#include "generic.h"
#include "devices.h"


#ifdef CONFIG_MACH_COLIBRI_EVALBOARD
static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = {
      /* MMC */
      GPIO7_MMC1_CLK,
      GPIO14_MMC1_CMD,
      GPIO3_MMC1_DAT0,
      GPIO4_MMC1_DAT1,
      GPIO5_MMC1_DAT2,
      GPIO6_MMC1_DAT3,
      GPIO39_GPIO,      /* SD detect */

      /* UHC */
      GPIO0_2_USBH_PEN,
      GPIO1_2_USBH_PWR,
      GPIO77_USB_P3_1,
      GPIO78_USB_P3_2,
      GPIO79_USB_P3_3,
      GPIO80_USB_P3_4,
      GPIO81_USB_P3_5,
      GPIO82_USB_P3_6,

      /* I2C */
      GPIO21_I2C_SCL,
      GPIO22_I2C_SDA,
};
#else
static mfp_cfg_t colibri_pxa300_evalboard_pin_config[] __initdata = {};
#endif

#if defined(CONFIG_AX88796)
#define COLIBRI_ETH_IRQ_GPIO  mfp_to_gpio(GPIO26_GPIO)
/*
 * Asix AX88796 Ethernet
 */
static struct ax_plat_data colibri_asix_platdata = {
      .flags            = 0, /* defined later */
      .wordlength = 2,
};

static struct resource colibri_asix_resource[] = {
      [0] = {
            .start = PXA3xx_CS2_PHYS,
            .end   = PXA3xx_CS2_PHYS + (0x20 * 2) - 1,
            .flags = IORESOURCE_MEM,
      },
      [1] = {
            .start = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
            .end   = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
            .flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
      }
};

static struct platform_device asix_device = {
      .name       = "ax88796",
      .id         = 0,
      .num_resources    = ARRAY_SIZE(colibri_asix_resource),
      .resource   = colibri_asix_resource,
      .dev        = {
            .platform_data = &colibri_asix_platdata
      }
};

static mfp_cfg_t colibri_pxa300_eth_pin_config[] __initdata = {
      GPIO1_nCS2,             /* AX88796 chip select */
      GPIO26_GPIO | MFP_PULL_HIGH   /* AX88796 IRQ */
};

static void __init colibri_pxa300_init_eth(void)
{
      colibri_pxa3xx_init_eth(&colibri_asix_platdata);
      pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_eth_pin_config));
      platform_device_register(&asix_device);
}
#else
static inline void __init colibri_pxa300_init_eth(void) {}
#endif /* CONFIG_AX88796 */

#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
static mfp_cfg_t colibri_pxa300_lcd_pin_config[] __initdata = {
      GPIO54_LCD_LDD_0,
      GPIO55_LCD_LDD_1,
      GPIO56_LCD_LDD_2,
      GPIO57_LCD_LDD_3,
      GPIO58_LCD_LDD_4,
      GPIO59_LCD_LDD_5,
      GPIO60_LCD_LDD_6,
      GPIO61_LCD_LDD_7,
      GPIO62_LCD_LDD_8,
      GPIO63_LCD_LDD_9,
      GPIO64_LCD_LDD_10,
      GPIO65_LCD_LDD_11,
      GPIO66_LCD_LDD_12,
      GPIO67_LCD_LDD_13,
      GPIO68_LCD_LDD_14,
      GPIO69_LCD_LDD_15,
      GPIO70_LCD_LDD_16,
      GPIO71_LCD_LDD_17,
      GPIO62_LCD_CS_N,
      GPIO72_LCD_FCLK,
      GPIO73_LCD_LCLK,
      GPIO74_LCD_PCLK,
      GPIO75_LCD_BIAS,
      GPIO76_LCD_VSYNC,
};

static void __init colibri_pxa300_init_lcd(void)
{
      pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_lcd_pin_config));
}

#else
static inline void colibri_pxa300_init_lcd(void) {}
#endif /* CONFIG_FB_PXA || CONFIG_FB_PXA_MODULE */

#if defined(CONFIG_SND_AC97_CODEC) || defined(CONFIG_SND_AC97_CODEC_MODULE)
static mfp_cfg_t colibri_pxa310_ac97_pin_config[] __initdata = {
      GPIO24_AC97_SYSCLK,
      GPIO23_AC97_nACRESET,
      GPIO25_AC97_SDATA_IN_0,
      GPIO27_AC97_SDATA_OUT,
      GPIO28_AC97_SYNC,
      GPIO29_AC97_BITCLK
};

static inline void __init colibri_pxa310_init_ac97(void)
{
      /* no AC97 codec on Colibri PXA300 */
      if (!cpu_is_pxa310())
            return;

      pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa310_ac97_pin_config));
      pxa_set_ac97_info(NULL);
}
#else
static inline void colibri_pxa310_init_ac97(void) {}
#endif

void __init colibri_pxa300_init(void)
{
      colibri_pxa300_init_eth();
      colibri_pxa3xx_init_nand();
      colibri_pxa300_init_lcd();
      colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO39_GPIO));
      colibri_pxa310_init_ac97();

      /* Evalboard init */
      pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa300_evalboard_pin_config));
      colibri_evalboard_init();
}

MACHINE_START(COLIBRI300, "Toradex Colibri PXA300")
      .boot_params      = COLIBRI_SDRAM_BASE + 0x100,
      .init_machine     = colibri_pxa300_init,
      .map_io           = pxa3xx_map_io,
      .init_irq   = pxa3xx_init_irq,
      .timer            = &pxa_timer,
MACHINE_END


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