remarkable-linux/arch/arm/mach-pxa/vpac270.c

/*
 * Hardware definitions for Voipac PXA270
 *
 * Copyright (C) 2010
 * Marek Vasut <marek.vasut@gmail.com>
 *
 * 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/platform_device.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/gpio.h>
#include <linux/sysdev.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>

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

#include <mach/pxa27x.h>
#include <mach/vpac270.h>
#include <mach/mmc.h>
#include <mach/pxafb.h>

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

/******************************************************************************
 * Pin configuration
 ******************************************************************************/
static unsigned long vpac270_pin_config[] __initdata = {
	/* MMC */
	GPIO32_MMC_CLK,
	GPIO92_MMC_DAT_0,
	GPIO109_MMC_DAT_1,
	GPIO110_MMC_DAT_2,
	GPIO111_MMC_DAT_3,
	GPIO112_MMC_CMD,
	GPIO53_GPIO,	/* SD detect */
	GPIO52_GPIO,	/* SD r/o switch */

	/* GPIO KEYS */
	GPIO1_GPIO,	/* USER BTN */

	/* LEDs */
	GPIO15_GPIO,	/* orange led */

	/* FFUART */
	GPIO34_FFUART_RXD,
	GPIO39_FFUART_TXD,
	GPIO27_FFUART_RTS,
	GPIO100_FFUART_CTS,
	GPIO33_FFUART_DSR,
	GPIO40_FFUART_DTR,
	GPIO10_FFUART_DCD,
	GPIO38_FFUART_RI,

	/* LCD */
	GPIO58_LCD_LDD_0,
	GPIO59_LCD_LDD_1,
	GPIO60_LCD_LDD_2,
	GPIO61_LCD_LDD_3,
	GPIO62_LCD_LDD_4,
	GPIO63_LCD_LDD_5,
	GPIO64_LCD_LDD_6,
	GPIO65_LCD_LDD_7,
	GPIO66_LCD_LDD_8,
	GPIO67_LCD_LDD_9,
	GPIO68_LCD_LDD_10,
	GPIO69_LCD_LDD_11,
	GPIO70_LCD_LDD_12,
	GPIO71_LCD_LDD_13,
	GPIO72_LCD_LDD_14,
	GPIO73_LCD_LDD_15,
	GPIO86_LCD_LDD_16,
	GPIO87_LCD_LDD_17,
	GPIO74_LCD_FCLK,
	GPIO75_LCD_LCLK,
	GPIO76_LCD_PCLK,
	GPIO77_LCD_BIAS,

	/* PCMCIA */
	GPIO48_nPOE,
	GPIO49_nPWE,
	GPIO50_nPIOR,
	GPIO51_nPIOW,
	GPIO85_nPCE_1,
	GPIO54_nPCE_2,
	GPIO55_nPREG,
	GPIO57_nIOIS16,
	GPIO56_nPWAIT,
	GPIO104_PSKTSEL,
	GPIO84_GPIO,	/* PCMCIA CD */
	GPIO35_GPIO,	/* PCMCIA RDY */
	GPIO107_GPIO,	/* PCMCIA PPEN */
	GPIO11_GPIO,	/* PCMCIA RESET */
	GPIO17_GPIO,	/* CF CD */
	GPIO12_GPIO,	/* CF RDY */
	GPIO16_GPIO,	/* CF RESET */

};

/******************************************************************************
 * NOR Flash
 ******************************************************************************/
#if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
static struct mtd_partition vpac270_partitions[] = {
	{
		.name		= "Flash",
		.offset		= 0x00000000,
		.size		= MTDPART_SIZ_FULL,
	}
};

static struct physmap_flash_data vpac270_flash_data[] = {
	{
		.width		= 2,	/* bankwidth in bytes */
		.parts		= vpac270_partitions,
		.nr_parts	= ARRAY_SIZE(vpac270_partitions)
	}
};

static struct resource vpac270_flash_resource = {
	.start	= PXA_CS0_PHYS,
	.end	= PXA_CS0_PHYS + SZ_64M - 1,
	.flags	= IORESOURCE_MEM,
};

static struct platform_device vpac270_flash = {
	.name		= "physmap-flash",
	.id		= 0,
	.resource	= &vpac270_flash_resource,
	.num_resources	= 1,
	.dev 		= {
		.platform_data = vpac270_flash_data,
	},
};
static void __init vpac270_nor_init(void)
{
	platform_device_register(&vpac270_flash);
}
#else
static inline void vpac270_nor_init(void) {}
#endif

/******************************************************************************
 * SD/MMC card controller
 ******************************************************************************/
#if defined(CONFIG_MMC_PXA) || defined(CONFIG_MMC_PXA_MODULE)
static struct pxamci_platform_data vpac270_mci_platform_data = {
	.ocr_mask		= MMC_VDD_32_33 | MMC_VDD_33_34,
	.gpio_card_detect	= GPIO53_VPAC270_SD_DETECT_N,
	.gpio_card_ro		= GPIO52_VPAC270_SD_READONLY,
	.detect_delay		= 20,
};

static void __init vpac270_mmc_init(void)
{
	pxa_set_mci_info(&vpac270_mci_platform_data);
}
#else
static inline void vpac270_mmc_init(void) {}
#endif

/******************************************************************************
 * GPIO keys
 ******************************************************************************/
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
static struct gpio_keys_button vpac270_pxa_buttons[] = {
	{KEY_POWER, GPIO1_VPAC270_USER_BTN, 0, "USER BTN"},
};

static struct gpio_keys_platform_data vpac270_pxa_keys_data = {
	.buttons	= vpac270_pxa_buttons,
	.nbuttons	= ARRAY_SIZE(vpac270_pxa_buttons),
};

static struct platform_device vpac270_pxa_keys = {
	.name	= "gpio-keys",
	.id	= -1,
	.dev	= {
		.platform_data = &vpac270_pxa_keys_data,
	},
};

static void __init vpac270_keys_init(void)
{
	platform_device_register(&vpac270_pxa_keys);
}
#else
static inline void vpac270_keys_init(void) {}
#endif

/******************************************************************************
 * LED
 ******************************************************************************/
#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
struct gpio_led vpac270_gpio_leds[] = {
{
	.name			= "vpac270:orange:user",
	.default_trigger	= "none",
	.gpio			= GPIO15_VPAC270_LED_ORANGE,
	.active_low		= 1,
}
};

static struct gpio_led_platform_data vpac270_gpio_led_info = {
	.leds		= vpac270_gpio_leds,
	.num_leds	= ARRAY_SIZE(vpac270_gpio_leds),
};

static struct platform_device vpac270_leds = {
	.name	= "leds-gpio",
	.id	= -1,
	.dev	= {
		.platform_data	= &vpac270_gpio_led_info,
	}
};

static void __init vpac270_leds_init(void)
{
	platform_device_register(&vpac270_leds);
}
#else
static inline void vpac270_leds_init(void) {}
#endif

/******************************************************************************
 * Framebuffer
 ******************************************************************************/
#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
static struct pxafb_mode_info vpac270_lcd_modes[] = {
{
	.pixclock	= 57692,
	.xres		= 640,
	.yres		= 480,
	.bpp		= 32,
	.depth		= 18,

	.left_margin	= 144,
	.right_margin	= 32,
	.upper_margin	= 13,
	.lower_margin	= 30,

	.hsync_len	= 32,
	.vsync_len	= 2,

	.sync		= FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
},
};

static struct pxafb_mach_info vpac270_lcd_screen = {
	.modes		= vpac270_lcd_modes,
	.num_modes	= ARRAY_SIZE(vpac270_lcd_modes),
	.lcd_conn	= LCD_COLOR_TFT_18BPP,
};

static void vpac270_lcd_power(int on, struct fb_var_screeninfo *info)
{
	gpio_set_value(GPIO81_VPAC270_BKL_ON, on);
}

static void __init vpac270_lcd_init(void)
{
	int ret;

	ret = gpio_request(GPIO81_VPAC270_BKL_ON, "BKL-ON");
	if (ret) {
		pr_err("Requesting BKL-ON GPIO failed!\n");
		goto err;
	}

	ret = gpio_direction_output(GPIO81_VPAC270_BKL_ON, 1);
	if (ret) {
		pr_err("Setting BKL-ON GPIO direction failed!\n");
		goto err2;
	}

	vpac270_lcd_screen.pxafb_lcd_power = vpac270_lcd_power;
	set_pxa_fb_info(&vpac270_lcd_screen);
	return;

err2:
	gpio_free(GPIO81_VPAC270_BKL_ON);
err:
	return;
}
#else
static inline void vpac270_lcd_init(void) {}
#endif

/******************************************************************************
 * Machine init
 ******************************************************************************/
static void __init vpac270_init(void)
{
	pxa2xx_mfp_config(ARRAY_AND_SIZE(vpac270_pin_config));

	pxa_set_ffuart_info(NULL);
	pxa_set_btuart_info(NULL);
	pxa_set_stuart_info(NULL);

	vpac270_lcd_init();
	vpac270_mmc_init();
	vpac270_nor_init();
	vpac270_leds_init();
	vpac270_keys_init();
}

MACHINE_START(VPAC270, "Voipac PXA270")
	.phys_io	= 0x40000000,
	.io_pg_offst	= (io_p2v(0x40000000) >> 18) & 0xfffc,
	.boot_params	= 0xa0000100,
	.map_io		= pxa_map_io,
	.init_irq	= pxa27x_init_irq,
	.timer		= &pxa_timer,
	.init_machine	= vpac270_init
MACHINE_END