colibri-pxa300.c

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/*
 *  arch/arm/mach-pxa/colibri-pxa300.c
 *
 *  Support for Toradex PXA300/310 based Colibri module
 *
 *  Daniel Mack <[email protected]>
 *  Matthias Meier <[email protected]>
 *
 *  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 <linux/platform_data/usb-ohci-pxa27x.h>
#include <linux/platform_data/video-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,
    GPIO13_GPIO,    /* GPIO13_COLIBRI_PXA300_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 = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
        .end   = PXA_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")
    .atag_offset    = 0x100,
    .init_machine   = colibri_pxa300_init,
    .map_io     = pxa3xx_map_io,
    .nr_irqs    = PXA_NR_IRQS,
    .init_irq   = pxa3xx_init_irq,
    .handle_irq = pxa3xx_handle_irq,
    .timer      = &pxa_timer,
    .restart    = pxa_restart,
MACHINE_END