[mirror_ubuntu-artful-kernel.git] / arch / arm / mach-clps711x / board-edb7211.c

/*
 *  Copyright (C) 2000, 2001 Blue Mug, Inc.  All Rights Reserved.
 *
 * 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.
 */

#include <linux/init.h>
#include <linux/gpio.h>
#include <linux/delay.h>
#include <linux/memblock.h>
#include <linux/types.h>
#include <linux/i2c-gpio.h>
#include <linux/interrupt.h>
#include <linux/backlight.h>
#include <linux/platform_device.h>

#include <linux/mtd/physmap.h>
#include <linux/mtd/partitions.h>

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

#include <video/platform_lcd.h>

#include <mach/hardware.h>

#include "common.h"
#include "devices.h"

#define VIDEORAM_SIZE		SZ_128K

#define EDB7211_LCD_DC_DC_EN	CLPS711X_GPIO(3, 1)
#define EDB7211_LCDEN		CLPS711X_GPIO(3, 2)
#define EDB7211_LCDBL		CLPS711X_GPIO(3, 3)

#define EDB7211_I2C_SDA		CLPS711X_GPIO(3, 4)
#define EDB7211_I2C_SCL		CLPS711X_GPIO(3, 5)

#define EDB7211_FLASH0_BASE	(CS0_PHYS_BASE)
#define EDB7211_FLASH1_BASE	(CS1_PHYS_BASE)

#define EDB7211_CS8900_BASE	(CS2_PHYS_BASE + 0x300)
#define EDB7211_CS8900_IRQ	(IRQ_EINT3)

/* The extra 8 lines of the keyboard matrix */
#define EDB7211_EXTKBD_BASE	(CS3_PHYS_BASE)

static struct i2c_gpio_platform_data edb7211_i2c_pdata __initdata = {
	.sda_pin	= EDB7211_I2C_SDA,
	.scl_pin	= EDB7211_I2C_SCL,
	.scl_is_output_only = 1,
};

static struct resource edb7211_cs8900_resource[] __initdata = {
	DEFINE_RES_MEM(EDB7211_CS8900_BASE, SZ_1K),
	DEFINE_RES_IRQ(EDB7211_CS8900_IRQ),
};

static struct mtd_partition edb7211_flash_partitions[] __initdata = {
	{
		.name	= "Flash",
		.offset	= 0,
		.size	= MTDPART_SIZ_FULL,
	},
};

static struct physmap_flash_data edb7211_flash_pdata __initdata = {
	.width		= 4,
	.parts		= edb7211_flash_partitions,
	.nr_parts	= ARRAY_SIZE(edb7211_flash_partitions),
};

static struct resource edb7211_flash_resources[] __initdata = {
	DEFINE_RES_MEM(EDB7211_FLASH0_BASE, SZ_8M),
	DEFINE_RES_MEM(EDB7211_FLASH1_BASE, SZ_8M),
};

static struct platform_device edb7211_flash_pdev __initdata = {
	.name		= "physmap-flash",
	.id		= 0,
	.resource	= edb7211_flash_resources,
	.num_resources	= ARRAY_SIZE(edb7211_flash_resources),
	.dev	= {
		.platform_data	= &edb7211_flash_pdata,
	},
};

static void edb7211_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
{
	if (power) {
		gpio_set_value(EDB7211_LCDEN, 1);
		udelay(100);
		gpio_set_value(EDB7211_LCD_DC_DC_EN, 1);
	} else {
		gpio_set_value(EDB7211_LCD_DC_DC_EN, 0);
		udelay(100);
		gpio_set_value(EDB7211_LCDEN, 0);
	}
}

static struct plat_lcd_data edb7211_lcd_power_pdata = {
	.set_power	= edb7211_lcd_power_set,
};

static void edb7211_lcd_backlight_set_intensity(int intensity)
{
	gpio_set_value(EDB7211_LCDBL, !!intensity);
	clps_writel((clps_readl(PMPCON) & 0xf0ff) | (intensity << 8), PMPCON);
}

static struct generic_bl_info edb7211_lcd_backlight_pdata = {
	.name			= "lcd-backlight.0",
	.default_intensity	= 0x01,
	.max_intensity		= 0x0f,
	.set_bl_intensity	= edb7211_lcd_backlight_set_intensity,
};

static struct gpio edb7211_gpios[] __initconst = {
	{ EDB7211_LCD_DC_DC_EN,	GPIOF_OUT_INIT_LOW,	"LCD DC-DC" },
	{ EDB7211_LCDEN,	GPIOF_OUT_INIT_LOW,	"LCD POWER" },
	{ EDB7211_LCDBL,	GPIOF_OUT_INIT_LOW,	"LCD BACKLIGHT" },
};

static struct map_desc edb7211_io_desc[] __initdata = {
	{	/* Memory-mapped extra keyboard row */
		.virtual	= IO_ADDRESS(EDB7211_EXTKBD_BASE),
		.pfn		= __phys_to_pfn(EDB7211_EXTKBD_BASE),
		.length		= SZ_1M,
		.type		= MT_DEVICE,
	},
};

void __init edb7211_map_io(void)
{
	clps711x_map_io();
	iotable_init(edb7211_io_desc, ARRAY_SIZE(edb7211_io_desc));
}

/* Reserve screen memory region at the start of main system memory. */
static void __init edb7211_reserve(void)
{
	memblock_reserve(PHYS_OFFSET, VIDEORAM_SIZE);
}

static void __init
fixup_edb7211(struct tag *tags, char **cmdline, struct meminfo *mi)
{
	/*
	 * Bank start addresses are not present in the information
	 * passed in from the boot loader.  We could potentially
	 * detect them, but instead we hard-code them.
	 *
	 * Banks sizes _are_ present in the param block, but we're
	 * not using that information yet.
	 */
	mi->bank[0].start = 0xc0000000;
	mi->bank[0].size = SZ_8M;
	mi->bank[1].start = 0xc1000000;
	mi->bank[1].size = SZ_8M;
	mi->nr_banks = 2;
}

static void __init edb7211_init(void)
{
	clps711x_devices_init();
}

static void __init edb7211_init_late(void)
{
	gpio_request_array(edb7211_gpios, ARRAY_SIZE(edb7211_gpios));

	platform_device_register(&edb7211_flash_pdev);
	platform_device_register_data(&platform_bus, "platform-lcd", 0,
				      &edb7211_lcd_power_pdata,
				      sizeof(edb7211_lcd_power_pdata));
	platform_device_register_data(&platform_bus, "generic-bl", 0,
				      &edb7211_lcd_backlight_pdata,
				      sizeof(edb7211_lcd_backlight_pdata));
	platform_device_register_simple("video-clps711x", 0, NULL, 0);
	platform_device_register_simple("cs89x0", 0, edb7211_cs8900_resource,
					ARRAY_SIZE(edb7211_cs8900_resource));
	platform_device_register_data(&platform_bus, "i2c-gpio", 0,
				      &edb7211_i2c_pdata,
				      sizeof(edb7211_i2c_pdata));
}

MACHINE_START(EDB7211, "CL-EDB7211 (EP7211 eval board)")
	/* Maintainer: Jon McClintock */
	.atag_offset	= VIDEORAM_SIZE + 0x100,
	.nr_irqs	= CLPS711X_NR_IRQS,
	.fixup		= fixup_edb7211,
	.reserve	= edb7211_reserve,
	.map_io		= edb7211_map_io,
	.init_early	= clps711x_init_early,
	.init_irq	= clps711x_init_irq,
	.init_time	= clps711x_timer_init,
	.init_machine	= edb7211_init,
	.init_late	= edb7211_init_late,
	.handle_irq	= clps711x_handle_irq,
	.restart	= clps711x_restart,
MACHINE_END
Commit	Line	Data
1da177e4	1	/*
1da177e4 LT	2	* Copyright (C) 2000, 2001 Blue Mug, Inc. All Rights Reserved.
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License as published by
	6	* the Free Software Foundation; either version 2 of the License, or
	7	* (at your option) any later version.
1da177e4	8	*/
2a552891	9
1da177e4	10	#include <linux/init.h>
87c37b51 AS	11	#include <linux/gpio.h>
87c37b51 AS	12	#include <linux/delay.h>
8d717a52	13	#include <linux/memblock.h>
1da177e4	14	#include <linux/types.h>
362168f8	15	#include <linux/i2c-gpio.h>
200daa36	16	#include <linux/interrupt.h>
94760bf2	17	#include <linux/backlight.h>
200daa36	18	#include <linux/platform_device.h>
1da177e4	19
96754a1f AS	20	#include <linux/mtd/physmap.h>
	21	#include <linux/mtd/partitions.h>
	22
1da177e4	23	#include <asm/setup.h>
2a552891	24	#include <asm/mach/map.h>
1da177e4	25	#include <asm/mach/arch.h>
2a552891 AS	26	#include <asm/mach-types.h>
2a552891 AS	27
87c37b51 AS	28	#include <video/platform_lcd.h>
87c37b51 AS	29
2a552891	30	#include <mach/hardware.h>
1da177e4 LT	31
1da177e4 LT	32	#include "common.h"
e328b880	33	#include "devices.h"
1da177e4	34
200daa36 AS	35	#define VIDEORAM_SIZE SZ_128K
200daa36 AS	36
87c37b51 AS	37	#define EDB7211_LCD_DC_DC_EN CLPS711X_GPIO(3, 1)
87c37b51 AS	38	#define EDB7211_LCDEN CLPS711X_GPIO(3, 2)
94760bf2	39	#define EDB7211_LCDBL CLPS711X_GPIO(3, 3)
87c37b51	40
362168f8 AS	41	#define EDB7211_I2C_SDA CLPS711X_GPIO(3, 4)
	42	#define EDB7211_I2C_SCL CLPS711X_GPIO(3, 5)
	43
96754a1f AS	44	#define EDB7211_FLASH0_BASE (CS0_PHYS_BASE)
96754a1f AS	45	#define EDB7211_FLASH1_BASE (CS1_PHYS_BASE)
7e4615cd	46
200daa36 AS	47	#define EDB7211_CS8900_BASE (CS2_PHYS_BASE + 0x300)
	48	#define EDB7211_CS8900_IRQ (IRQ_EINT3)
	49
7e4615cd AS	50	/* The extra 8 lines of the keyboard matrix */
	51	#define EDB7211_EXTKBD_BASE (CS3_PHYS_BASE)
	52
362168f8 AS	53	static struct i2c_gpio_platform_data edb7211_i2c_pdata __initdata = {
	54	.sda_pin = EDB7211_I2C_SDA,
	55	.scl_pin = EDB7211_I2C_SCL,
	56	.scl_is_output_only = 1,
	57	};
	58
200daa36 AS	59	static struct resource edb7211_cs8900_resource[] __initdata = {
	60	DEFINE_RES_MEM(EDB7211_CS8900_BASE, SZ_1K),
	61	DEFINE_RES_IRQ(EDB7211_CS8900_IRQ),
	62	};
2a552891	63
96754a1f AS	64	static struct mtd_partition edb7211_flash_partitions[] __initdata = {
	65	{
	66	.name = "Flash",
	67	.offset = 0,
	68	.size = MTDPART_SIZ_FULL,
	69	},
	70	};
	71
	72	static struct physmap_flash_data edb7211_flash_pdata __initdata = {
	73	.width = 4,
	74	.parts = edb7211_flash_partitions,
	75	.nr_parts = ARRAY_SIZE(edb7211_flash_partitions),
	76	};
	77
	78	static struct resource edb7211_flash_resources[] __initdata = {
	79	DEFINE_RES_MEM(EDB7211_FLASH0_BASE, SZ_8M),
	80	DEFINE_RES_MEM(EDB7211_FLASH1_BASE, SZ_8M),
	81	};
	82
	83	static struct platform_device edb7211_flash_pdev __initdata = {
	84	.name = "physmap-flash",
	85	.id = 0,
	86	.resource = edb7211_flash_resources,
	87	.num_resources = ARRAY_SIZE(edb7211_flash_resources),
	88	.dev = {
	89	.platform_data = &edb7211_flash_pdata,
	90	},
	91	};
	92
87c37b51 AS	93	static void edb7211_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
	94	{
	95	if (power) {
	96	gpio_set_value(EDB7211_LCDEN, 1);
	97	udelay(100);
	98	gpio_set_value(EDB7211_LCD_DC_DC_EN, 1);
	99	} else {
	100	gpio_set_value(EDB7211_LCD_DC_DC_EN, 0);
	101	udelay(100);
	102	gpio_set_value(EDB7211_LCDEN, 0);
	103	}
	104	}
	105
	106	static struct plat_lcd_data edb7211_lcd_power_pdata = {
	107	.set_power = edb7211_lcd_power_set,
	108	};
	109
94760bf2 AS	110	static void edb7211_lcd_backlight_set_intensity(int intensity)
94760bf2 AS	111	{
e337d724 AS	112	gpio_set_value(EDB7211_LCDBL, !!intensity);
e337d724 AS	113	clps_writel((clps_readl(PMPCON) & 0xf0ff) \| (intensity << 8), PMPCON);
94760bf2 AS	114	}
	115
	116	static struct generic_bl_info edb7211_lcd_backlight_pdata = {
	117	.name = "lcd-backlight.0",
	118	.default_intensity = 0x01,
e337d724	119	.max_intensity = 0x0f,
94760bf2 AS	120	.set_bl_intensity = edb7211_lcd_backlight_set_intensity,
	121	};
	122
87c37b51 AS	123	static struct gpio edb7211_gpios[] __initconst = {
	124	{ EDB7211_LCD_DC_DC_EN, GPIOF_OUT_INIT_LOW, "LCD DC-DC" },
	125	{ EDB7211_LCDEN, GPIOF_OUT_INIT_LOW, "LCD POWER" },
94760bf2	126	{ EDB7211_LCDBL, GPIOF_OUT_INIT_LOW, "LCD BACKLIGHT" },
87c37b51 AS	127	};
87c37b51 AS	128
2a552891 AS	129	static struct map_desc edb7211_io_desc[] __initdata = {
2a552891 AS	130	{ /* Memory-mapped extra keyboard row */
7e4615cd AS	131	.virtual = IO_ADDRESS(EDB7211_EXTKBD_BASE),
7e4615cd AS	132	.pfn = __phys_to_pfn(EDB7211_EXTKBD_BASE),
2a552891 AS	133	.length = SZ_1M,
2a552891 AS	134	.type = MT_DEVICE,
2a552891 AS	135	},
	136	};
	137
	138	void __init edb7211_map_io(void)
	139	{
	140	clps711x_map_io();
	141	iotable_init(edb7211_io_desc, ARRAY_SIZE(edb7211_io_desc));
	142	}
1da177e4	143
98c672cf RK	144	/* Reserve screen memory region at the start of main system memory. */
	145	static void __init edb7211_reserve(void)
	146	{
2a552891	147	memblock_reserve(PHYS_OFFSET, VIDEORAM_SIZE);
98c672cf RK	148	}
98c672cf RK	149
1da177e4	150	static void __init
0744a3ee	151	fixup_edb7211(struct tag tags, char cmdline, struct meminfo mi)
1da177e4 LT	152	{
	153	/*
	154	* Bank start addresses are not present in the information
	155	* passed in from the boot loader. We could potentially
	156	* detect them, but instead we hard-code them.
	157	*
	158	* Banks sizes _are_ present in the param block, but we're
	159	* not using that information yet.
	160	*/
	161	mi->bank[0].start = 0xc0000000;
2a552891	162	mi->bank[0].size = SZ_8M;
1da177e4	163	mi->bank[1].start = 0xc1000000;
2a552891	164	mi->bank[1].size = SZ_8M;
1da177e4 LT	165	mi->nr_banks = 2;
	166	}
	167
200daa36	168	static void __init edb7211_init(void)
e328b880 AS	169	{
	170	clps711x_devices_init();
	171	}
	172
	173	static void __init edb7211_init_late(void)
200daa36	174	{
87c37b51 AS	175	gpio_request_array(edb7211_gpios, ARRAY_SIZE(edb7211_gpios));
87c37b51 AS	176
96754a1f	177	platform_device_register(&edb7211_flash_pdev);
87c37b51 AS	178	platform_device_register_data(&platform_bus, "platform-lcd", 0,
	179	&edb7211_lcd_power_pdata,
	180	sizeof(edb7211_lcd_power_pdata));
94760bf2 AS	181	platform_device_register_data(&platform_bus, "generic-bl", 0,
	182	&edb7211_lcd_backlight_pdata,
	183	sizeof(edb7211_lcd_backlight_pdata));
dd850f12	184	platform_device_register_simple("video-clps711x", 0, NULL, 0);
200daa36 AS	185	platform_device_register_simple("cs89x0", 0, edb7211_cs8900_resource,
200daa36 AS	186	ARRAY_SIZE(edb7211_cs8900_resource));
362168f8 AS	187	platform_device_register_data(&platform_bus, "i2c-gpio", 0,
	188	&edb7211_i2c_pdata,
	189	sizeof(edb7211_i2c_pdata));
200daa36 AS	190	}
200daa36 AS	191
1da177e4	192	MACHINE_START(EDB7211, "CL-EDB7211 (EP7211 eval board)")
e9dea0c6	193	/* Maintainer: Jon McClintock */
2a552891	194	.atag_offset = VIDEORAM_SIZE + 0x100,
0d8be81c	195	.nr_irqs = CLPS711X_NR_IRQS,
e9dea0c6	196	.fixup = fixup_edb7211,
98c672cf	197	.reserve = edb7211_reserve,
200daa36	198	.map_io = edb7211_map_io,
d0ad52a6	199	.init_early = clps711x_init_early,
e9dea0c6	200	.init_irq = clps711x_init_irq,
6bb27d73	201	.init_time = clps711x_timer_init,
200daa36	202	.init_machine = edb7211_init,
e328b880	203	.init_late = edb7211_init_late,
99f04c8f	204	.handle_irq = clps711x_handle_irq,
6c000712	205	.restart = clps711x_restart,
1da177e4	206	MACHINE_END