colibri-pxa320.c

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/*
 *  arch/arm/mach-pxa/colibri-pxa320.c
 *
 *  Support for Toradex PXA320/310 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 <linux/usb/gpio_vbus.h>

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

#include <mach/pxa320.h>
#include <mach/colibri.h>
#include <linux/platform_data/video-pxafb.h>
#include <linux/platform_data/usb-ohci-pxa27x.h>
#include <mach/audio.h>
#include <mach/pxa27x-udc.h>
#include <mach/udc.h>

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

#ifdef  CONFIG_MACH_COLIBRI_EVALBOARD
static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {
    /* MMC */
    GPIO22_MMC1_CLK,
    GPIO23_MMC1_CMD,
    GPIO18_MMC1_DAT0,
    GPIO19_MMC1_DAT1,
    GPIO20_MMC1_DAT2,
    GPIO21_MMC1_DAT3,
    GPIO28_GPIO,    /* SD detect */

    /* UART 1 configuration (may be set by bootloader) */
    GPIO99_UART1_CTS,
    GPIO104_UART1_RTS,
    GPIO97_UART1_RXD,
    GPIO98_UART1_TXD,
    GPIO101_UART1_DTR,
    GPIO103_UART1_DSR,
    GPIO100_UART1_DCD,
    GPIO102_UART1_RI,

    /* UART 2 configuration */
    GPIO109_UART2_CTS,
    GPIO112_UART2_RTS,
    GPIO110_UART2_RXD,
    GPIO111_UART2_TXD,

    /* UART 3 configuration */
    GPIO30_UART3_RXD,
    GPIO31_UART3_TXD,

    /* UHC */
    GPIO2_2_USBH_PEN,
    GPIO3_2_USBH_PWR,

    /* I2C */
    GPIO32_I2C_SCL,
    GPIO33_I2C_SDA,

    /* PCMCIA */
    MFP_CFG(GPIO59, AF7),   /* PRST ; AF7 to tristate */
    MFP_CFG(GPIO61, AF7),   /* PCE1 ; AF7 to tristate */
    MFP_CFG(GPIO60, AF7),   /* PCE2 ; AF7 to tristate */
    MFP_CFG(GPIO62, AF7),   /* PCD ; AF7 to tristate */
    MFP_CFG(GPIO56, AF7),   /* PSKTSEL ; AF7 to tristate */
    GPIO27_GPIO,        /* RDnWR ; input/tristate */
    GPIO50_GPIO,        /* PREG ; input/tristate */
    GPIO2_RDY,
    GPIO5_NPIOR,
    GPIO6_NPIOW,
    GPIO7_NPIOS16,
    GPIO8_NPWAIT,
    GPIO29_GPIO,        /* PRDY (READY GPIO) */
    GPIO57_GPIO,        /* PPEN (POWER GPIO) */
    GPIO81_GPIO,        /* PCD (DETECT GPIO) */
    GPIO77_GPIO,        /* PRST (RESET GPIO) */
    GPIO53_GPIO,        /* PBVD1 */
    GPIO79_GPIO,        /* PBVD2 */
    GPIO54_GPIO,        /* POE */
};
#else
static mfp_cfg_t colibri_pxa320_evalboard_pin_config[] __initdata = {};
#endif

#if defined(CONFIG_AX88796)
#define COLIBRI_ETH_IRQ_GPIO    mfp_to_gpio(GPIO36_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_pxa320_eth_pin_config[] __initdata = {
    GPIO3_nCS2,         /* AX88796 chip select */
    GPIO36_GPIO | MFP_PULL_HIGH /* AX88796 IRQ */
};

static void __init colibri_pxa320_init_eth(void)
{
    colibri_pxa3xx_init_eth(&colibri_asix_platdata);
    pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_eth_pin_config));
    platform_device_register(&asix_device);
}
#else
static inline void __init colibri_pxa320_init_eth(void) {}
#endif /* CONFIG_AX88796 */

#if defined(CONFIG_USB_PXA27X)||defined(CONFIG_USB_PXA27X_MODULE)
static struct gpio_vbus_mach_info colibri_pxa320_gpio_vbus_info = {
    .gpio_vbus      = mfp_to_gpio(MFP_PIN_GPIO96),
    .gpio_pullup        = -1,
};

static struct platform_device colibri_pxa320_gpio_vbus = {
    .name   = "gpio-vbus",
    .id = -1,
    .dev    = {
        .platform_data  = &colibri_pxa320_gpio_vbus_info,
    },
};

static void colibri_pxa320_udc_command(int cmd)
{
    if (cmd == PXA2XX_UDC_CMD_CONNECT)
        UP2OCR = UP2OCR_HXOE | UP2OCR_DPPUE;
    else if (cmd == PXA2XX_UDC_CMD_DISCONNECT)
        UP2OCR = UP2OCR_HXOE;
}

static struct pxa2xx_udc_mach_info colibri_pxa320_udc_info __initdata = {
    .udc_command        = colibri_pxa320_udc_command,
    .gpio_pullup        = -1,
};

static void __init colibri_pxa320_init_udc(void)
{
    pxa_set_udc_info(&colibri_pxa320_udc_info);
    platform_device_register(&colibri_pxa320_gpio_vbus);
}
#else
static inline void colibri_pxa320_init_udc(void) {}
#endif

#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
static mfp_cfg_t colibri_pxa320_lcd_pin_config[] __initdata = {
    GPIO6_2_LCD_LDD_0,
    GPIO7_2_LCD_LDD_1,
    GPIO8_2_LCD_LDD_2,
    GPIO9_2_LCD_LDD_3,
    GPIO10_2_LCD_LDD_4,
    GPIO11_2_LCD_LDD_5,
    GPIO12_2_LCD_LDD_6,
    GPIO13_2_LCD_LDD_7,
    GPIO63_LCD_LDD_8,
    GPIO64_LCD_LDD_9,
    GPIO65_LCD_LDD_10,
    GPIO66_LCD_LDD_11,
    GPIO67_LCD_LDD_12,
    GPIO68_LCD_LDD_13,
    GPIO69_LCD_LDD_14,
    GPIO70_LCD_LDD_15,
    GPIO71_LCD_LDD_16,
    GPIO72_LCD_LDD_17,
    GPIO73_LCD_CS_N,
    GPIO74_LCD_VSYNC,
    GPIO14_2_LCD_FCLK,
    GPIO15_2_LCD_LCLK,
    GPIO16_2_LCD_PCLK,
    GPIO17_2_LCD_BIAS,
};

static void __init colibri_pxa320_init_lcd(void)
{
    pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_lcd_pin_config));
}
#else
static inline void colibri_pxa320_init_lcd(void) {}
#endif

#if defined(CONFIG_SND_AC97_CODEC) || \
    defined(CONFIG_SND_AC97_CODEC_MODULE)
static mfp_cfg_t colibri_pxa320_ac97_pin_config[] __initdata = {
    GPIO34_AC97_SYSCLK,
    GPIO35_AC97_SDATA_IN_0,
    GPIO37_AC97_SDATA_OUT,
    GPIO38_AC97_SYNC,
    GPIO39_AC97_BITCLK,
    GPIO40_AC97_nACRESET
};

static inline void __init colibri_pxa320_init_ac97(void)
{
    pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_ac97_pin_config));
    pxa_set_ac97_info(NULL);
}
#else
static inline void colibri_pxa320_init_ac97(void) {}
#endif

void __init colibri_pxa320_init(void)
{
    colibri_pxa320_init_eth();
    colibri_pxa3xx_init_nand();
    colibri_pxa320_init_lcd();
    colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO49_GPIO));
    colibri_pxa320_init_ac97();
    colibri_pxa320_init_udc();

    /* Evalboard init */
    pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_evalboard_pin_config));
    colibri_evalboard_init();
}

MACHINE_START(COLIBRI320, "Toradex Colibri PXA320")
    .atag_offset    = 0x100,
    .init_machine   = colibri_pxa320_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