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colibri-pxa320.c

/*
 *  arch/arm/mach-pxa/colibri-pxa320.c
 *
 *  Support for Toradex PXA320/310 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/pxa3xx-regs.h>
#include <mach/mfp-pxa320.h>
#include <mach/colibri.h>
#include <mach/pxafb.h>
#include <mach/ohci.h>
#include <mach/audio.h>

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

#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 = 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_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_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
static mfp_cfg_t colibri_pxa320_usb_pin_config[] __initdata = {
      GPIO2_2_USBH_PEN,
      GPIO3_2_USBH_PWR,
};

static struct pxaohci_platform_data colibri_pxa320_ohci_info = {
      .port_mode  = PMM_GLOBAL_MODE,
      .flags            = ENABLE_PORT1 | POWER_CONTROL_LOW | POWER_SENSE_LOW,
};

void __init colibri_pxa320_init_ohci(void)
{
      pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_usb_pin_config));
      pxa_set_ohci_info(&colibri_pxa320_ohci_info);
}
#else
static inline void colibri_pxa320_init_ohci(void) {}
#endif /* CONFIG_USB_OHCI_HCD || CONFIG_USB_OHCI_HCD_MODULE */

static mfp_cfg_t colibri_pxa320_mmc_pin_config[] __initdata = {
      GPIO22_MMC1_CLK,
      GPIO23_MMC1_CMD,
      GPIO18_MMC1_DAT0,
      GPIO19_MMC1_DAT1,
      GPIO20_MMC1_DAT2,
      GPIO21_MMC1_DAT3
};

#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

/*
 * The following configuration is verified to work with the Toradex Orchid
 * carrier board
 */
static mfp_cfg_t colibri_pxa320_uart_pin_config[] __initdata = {
      /* 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,
};

static void __init colibri_pxa320_init_uart(void)
{
      pxa3xx_mfp_config(ARRAY_AND_SIZE(colibri_pxa320_uart_pin_config));
}

void __init colibri_pxa320_init(void)
{
      colibri_pxa320_init_eth();
      colibri_pxa320_init_ohci();
      colibri_pxa3xx_init_nand();
      colibri_pxa320_init_lcd();
      colibri_pxa3xx_init_lcd(mfp_to_gpio(GPIO49_GPIO));
      colibri_pxa320_init_ac97();
      colibri_pxa3xx_init_mmc(ARRAY_AND_SIZE(colibri_pxa320_mmc_pin_config),
                        mfp_to_gpio(MFP_PIN_GPIO28));
      colibri_pxa320_init_uart();
}

MACHINE_START(COLIBRI320, "Toradex Colibri PXA320")
      .phys_io    = 0x40000000,
      .io_pg_offst      = (io_p2v(0x40000000) >> 18) & 0xfffc,
      .boot_params      = COLIBRI_SDRAM_BASE + 0x100,
      .init_machine     = colibri_pxa320_init,
      .map_io           = pxa_map_io,
      .init_irq   = pxa3xx_init_irq,
      .timer            = &pxa_timer,
MACHINE_END


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