summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-clps711x/board-edb7211.c
blob: 9dfb990f08013060f72df49f81a29831a4be4cc5 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
/*
 *  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
OpenPOWER on IntegriCloud