/*
 * Emma Mobile EV2 processor support
 *
 * Copyright (C) 2012  Magnus Damm
 *
 * 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; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/platform_data/gpio-em.h>
#include <linux/of_platform.h>
#include <linux/delay.h>
#include <linux/input.h>
#include <linux/io.h>
#include <linux/of_irq.h>
#include <mach/hardware.h>
#include <mach/common.h>
#include <mach/emev2.h>
#include <mach/irqs.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/time.h>
#include <asm/hardware/gic.h>

static struct map_desc emev2_io_desc[] __initdata = {
#ifdef CONFIG_SMP
	/* 128K entity map for 0xe0100000 (SMU) */
	{
		.virtual	= 0xe0100000,
		.pfn		= __phys_to_pfn(0xe0100000),
		.length		= SZ_128K,
		.type		= MT_DEVICE
	},
	/* 2M mapping for SCU + L2 controller */
	{
		.virtual	= 0xf0000000,
		.pfn		= __phys_to_pfn(0x1e000000),
		.length		= SZ_2M,
		.type		= MT_DEVICE
	},
#endif
};

void __init emev2_map_io(void)
{
	iotable_init(emev2_io_desc, ARRAY_SIZE(emev2_io_desc));
}

/* UART */
static struct resource uart0_resources[] = {
	[0]	= {
		.start	= 0xe1020000,
		.end	= 0xe1020037,
		.flags	= IORESOURCE_MEM,
	},
	[1]	= {
		.start	= 40,
		.flags	= IORESOURCE_IRQ,
	}
};

static struct platform_device uart0_device = {
	.name		= "serial8250-em",
	.id		= 0,
	.num_resources	= ARRAY_SIZE(uart0_resources),
	.resource	= uart0_resources,
};

static struct resource uart1_resources[] = {
	[0]	= {
		.start	= 0xe1030000,
		.end	= 0xe1030037,
		.flags	= IORESOURCE_MEM,
	},
	[1]	= {
		.start	= 41,
		.flags	= IORESOURCE_IRQ,
	}
};

static struct platform_device uart1_device = {
	.name		= "serial8250-em",
	.id		= 1,
	.num_resources	= ARRAY_SIZE(uart1_resources),
	.resource	= uart1_resources,
};

static struct resource uart2_resources[] = {
	[0]	= {
		.start	= 0xe1040000,
		.end	= 0xe1040037,
		.flags	= IORESOURCE_MEM,
	},
	[1]	= {
		.start	= 42,
		.flags	= IORESOURCE_IRQ,
	}
};

static struct platform_device uart2_device = {
	.name		= "serial8250-em",
	.id		= 2,
	.num_resources	= ARRAY_SIZE(uart2_resources),
	.resource	= uart2_resources,
};

static struct resource uart3_resources[] = {
	[0]	= {
		.start	= 0xe1050000,
		.end	= 0xe1050037,
		.flags	= IORESOURCE_MEM,
	},
	[1]	= {
		.start	= 43,
		.flags	= IORESOURCE_IRQ,
	}
};

static struct platform_device uart3_device = {
	.name		= "serial8250-em",
	.id		= 3,
	.num_resources	= ARRAY_SIZE(uart3_resources),
	.resource	= uart3_resources,
};

/* STI */
static struct resource sti_resources[] = {
	[0] = {
		.name	= "STI",
		.start	= 0xe0180000,
		.end	= 0xe0180053,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.start	= 157,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device sti_device = {
	.name		= "em_sti",
	.id		= 0,
	.resource	= sti_resources,
	.num_resources	= ARRAY_SIZE(sti_resources),
};


/* GIO */
static struct gpio_em_config gio0_config = {
	.gpio_base = 0,
	.irq_base = EMEV2_GPIO_IRQ(0),
	.number_of_pins = 32,
};

static struct resource gio0_resources[] = {
	[0] = {
		.name	= "GIO_000",
		.start	= 0xe0050000,
		.end	= 0xe005002b,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.name	= "GIO_000",
		.start	= 0xe0050040,
		.end	= 0xe005005f,
		.flags	= IORESOURCE_MEM,
	},
	[2] = {
		.start	= 99,
		.flags	= IORESOURCE_IRQ,
	},
	[3] = {
		.start	= 100,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device gio0_device = {
	.name		= "em_gio",
	.id		= 0,
	.resource	= gio0_resources,
	.num_resources	= ARRAY_SIZE(gio0_resources),
	.dev		= {
		.platform_data	= &gio0_config,
	},
};

static struct gpio_em_config gio1_config = {
	.gpio_base = 32,
	.irq_base = EMEV2_GPIO_IRQ(32),
	.number_of_pins = 32,
};

static struct resource gio1_resources[] = {
	[0] = {
		.name	= "GIO_032",
		.start	= 0xe0050080,
		.end	= 0xe00500ab,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.name	= "GIO_032",
		.start	= 0xe00500c0,
		.end	= 0xe00500df,
		.flags	= IORESOURCE_MEM,
	},
	[2] = {
		.start	= 101,
		.flags	= IORESOURCE_IRQ,
	},
	[3] = {
		.start	= 102,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device gio1_device = {
	.name		= "em_gio",
	.id		= 1,
	.resource	= gio1_resources,
	.num_resources	= ARRAY_SIZE(gio1_resources),
	.dev		= {
		.platform_data	= &gio1_config,
	},
};

static struct gpio_em_config gio2_config = {
	.gpio_base = 64,
	.irq_base = EMEV2_GPIO_IRQ(64),
	.number_of_pins = 32,
};

static struct resource gio2_resources[] = {
	[0] = {
		.name	= "GIO_064",
		.start	= 0xe0050100,
		.end	= 0xe005012b,
		.flags	= IORESOURCE_MEM,
	},
	[1] = {
		.name	= "GIO_064",
		.start	= 0xe0050140,
		.end	= 0xe005015f,
		.flags	= IORESOURCE_MEM,
	},
	[2] = {
		.start	= 103,
		.flags	= IORESOURCE_IRQ,
	},
	[3] = {
		.start	= 104,
		.flags	= IORESOURCE_IRQ,
	},
};

static struct platform_device gio2_device = {
	.name		= "em_gio",
	.id		= 2,
	.resource	= gio2_resources,
	.num_resources	= ARRAY_SIZE(gio2_resources),
	.dev		= {
		.platform_data	= &gio2_config,
	},
};

static struct gpio_em_config gio3_config = {
	.gpio_base = 96,