/*
 * arch/arm/mach-ep93xx/vision_ep9307.c
 * Vision Engraving Systems EP9307 SoM support.
 *
 * Copyright (C) 2008-2011 Vision Engraving Systems
 * H Hartley Sweeten <hsweeten@visionengravers.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or (at
 * your option) any later version.
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/gpio.h>
#include <linux/fb.h>
#include <linux/io.h>
#include <linux/mtd/partitions.h>
#include <linux/i2c.h>
#include <linux/i2c-gpio.h>
#include <linux/i2c/pca953x.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
#include <linux/spi/mmc_spi.h>
#include <linux/mmc/host.h>

#include <mach/hardware.h>
#include <linux/platform_data/video-ep93xx.h>
#include <linux/platform_data/spi-ep93xx.h>
#include <mach/gpio-ep93xx.h>

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

#include "soc.h"

/*************************************************************************
 * Static I/O mappings for the FPGA
 *************************************************************************/
#define VISION_PHYS_BASE	EP93XX_CS7_PHYS_BASE
#define VISION_VIRT_BASE	0xfebff000

static struct map_desc vision_io_desc[] __initdata = {
	{
		.virtual	= VISION_VIRT_BASE,
		.pfn		= __phys_to_pfn(VISION_PHYS_BASE),
		.length		= SZ_4K,
		.type		= MT_DEVICE,
	},
};

static void __init vision_map_io(void)
{
	ep93xx_map_io();

	iotable_init(vision_io_desc, ARRAY_SIZE(vision_io_desc));
}

/*************************************************************************
 * Ethernet
 *************************************************************************/
static struct ep93xx_eth_data vision_eth_data __initdata = {
	.phy_id		= 1,
};

/*************************************************************************
 * Framebuffer
 *************************************************************************/
#define VISION_LCD_ENABLE	EP93XX_GPIO_LINE_EGPIO1

static int vision_lcd_setup(struct platform_device *pdev)
{
	int err;

	err = gpio_request_one(VISION_LCD_ENABLE, GPIOF_INIT_HIGH,
				dev_name(&pdev->dev));
	if (err)
		return err;

	ep93xx_devcfg_clear_bits(EP93XX_SYSCON_DEVCFG_RAS |
				 EP93XX_SYSCON_DEVCFG_RASONP3 |
				 EP93XX_SYSCON_DEVCFG_EXVC);

	return 0;
}

static void vision_lcd_teardown(struct platform_device *pdev)
{
	gpio_free(VISION_LCD_ENABLE);
}

static void vision_lcd_blank(int blank_mode, struct fb_info *info)
{
	if (blank_mode)
		gpio_set_value(VISION_LCD_ENABLE, 0);
	else
		gpio_set_value(VISION_LCD_ENABLE, 1);
}

static struct ep93xxfb_mach_info ep93xxfb_info __initdata = {
	.num_modes	= EP93XXFB_USE_MODEDB,
	.bpp		= 16,
	.flags		= EP93XXFB_USE_SDCSN0 | EP93XXFB_PCLK_FALLING,
	.setup		= vision_lcd_setup,
	.teardown	= vision_lcd_teardown,
	.blank		= vision_lcd_blank,
};


/*************************************************************************
 * GPIO Expanders
 *************************************************************************/
#define PCA9539_74_GPIO_BASE	(EP93XX_GPIO_LINE_MAX + 1)
#define PCA9539_75_GPIO_BASE	(PCA9539_74_GPIO_BASE + 16)
#define PCA9539_76_GPIO_BASE	(PCA9539_75_GPIO_BASE + 16)
#define PCA9539_77_GPIO_BASE	(PCA9539_76_GPIO_BASE + 16)

static struct pca953x_platform_data pca953x_74_gpio_data = {
	.gpio_base	= PCA9539_74_GPIO_BASE,
	.irq_base	= EP93XX_BOARD_IRQ(0),
};

static struct pca953x_platform_data pca953x_75_gpio_data = {
	.gpio_base	= PCA9539_75_GPIO_BASE,
	.irq_base	= -1,
};

static struct pca953x_platform_data pca953x_76_gpio_data = {
	.gpio_base	= PCA9539_76_GPIO_BASE,
	.irq_base	= -1,
};

static struct pca953x_platform_data pca953x_77_gpio_data = {
	.gpio_base	= PCA9539_77_GPIO_BASE,
	.irq_base	= -1,
};

/*************************************************************************
 * I2C Bus