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[linux/fpc-iii.git] / arch / arm / mach-clps711x / board-edb7211.c
blob5f928e9ed2efdfd5e665eac6f8e0224dc1c3e3a1
1 /*
2 * Copyright (C) 2000, 2001 Blue Mug, Inc. All Rights Reserved.
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.
8 */
10 #include <linux/init.h>
11 #include <linux/gpio.h>
12 #include <linux/delay.h>
13 #include <linux/memblock.h>
14 #include <linux/types.h>
15 #include <linux/interrupt.h>
16 #include <linux/backlight.h>
17 #include <linux/platform_device.h>
19 #include <linux/mtd/physmap.h>
20 #include <linux/mtd/partitions.h>
22 #include <asm/setup.h>
23 #include <asm/mach/map.h>
24 #include <asm/mach/arch.h>
25 #include <asm/mach-types.h>
27 #include <video/platform_lcd.h>
29 #include <mach/hardware.h>
31 #include "common.h"
33 #define VIDEORAM_SIZE SZ_128K
35 #define EDB7211_LCD_DC_DC_EN CLPS711X_GPIO(3, 1)
36 #define EDB7211_LCDEN CLPS711X_GPIO(3, 2)
37 #define EDB7211_LCDBL CLPS711X_GPIO(3, 3)
39 #define EDB7211_FLASH0_BASE (CS0_PHYS_BASE)
40 #define EDB7211_FLASH1_BASE (CS1_PHYS_BASE)
41 #define EDB7211_CS8900_BASE (CS2_PHYS_BASE + 0x300)
42 #define EDB7211_CS8900_IRQ (IRQ_EINT3)
44 static struct resource edb7211_cs8900_resource[] __initdata = {
45 DEFINE_RES_MEM(EDB7211_CS8900_BASE, SZ_1K),
46 DEFINE_RES_IRQ(EDB7211_CS8900_IRQ),
49 static struct mtd_partition edb7211_flash_partitions[] __initdata = {
51 .name = "Flash",
52 .offset = 0,
53 .size = MTDPART_SIZ_FULL,
57 static struct physmap_flash_data edb7211_flash_pdata __initdata = {
58 .width = 4,
59 .parts = edb7211_flash_partitions,
60 .nr_parts = ARRAY_SIZE(edb7211_flash_partitions),
63 static struct resource edb7211_flash_resources[] __initdata = {
64 DEFINE_RES_MEM(EDB7211_FLASH0_BASE, SZ_8M),
65 DEFINE_RES_MEM(EDB7211_FLASH1_BASE, SZ_8M),
68 static struct platform_device edb7211_flash_pdev __initdata = {
69 .name = "physmap-flash",
70 .id = 0,
71 .resource = edb7211_flash_resources,
72 .num_resources = ARRAY_SIZE(edb7211_flash_resources),
73 .dev = {
74 .platform_data = &edb7211_flash_pdata,
78 static void edb7211_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
80 if (power) {
81 gpio_set_value(EDB7211_LCDEN, 1);
82 udelay(100);
83 gpio_set_value(EDB7211_LCD_DC_DC_EN, 1);
84 } else {
85 gpio_set_value(EDB7211_LCD_DC_DC_EN, 0);
86 udelay(100);
87 gpio_set_value(EDB7211_LCDEN, 0);
91 static struct plat_lcd_data edb7211_lcd_power_pdata = {
92 .set_power = edb7211_lcd_power_set,
95 static void edb7211_lcd_backlight_set_intensity(int intensity)
97 gpio_set_value(EDB7211_LCDBL, intensity);
100 static struct generic_bl_info edb7211_lcd_backlight_pdata = {
101 .name = "lcd-backlight.0",
102 .default_intensity = 0x01,
103 .max_intensity = 0x01,
104 .set_bl_intensity = edb7211_lcd_backlight_set_intensity,
107 static struct gpio edb7211_gpios[] __initconst = {
108 { EDB7211_LCD_DC_DC_EN, GPIOF_OUT_INIT_LOW, "LCD DC-DC" },
109 { EDB7211_LCDEN, GPIOF_OUT_INIT_LOW, "LCD POWER" },
110 { EDB7211_LCDBL, GPIOF_OUT_INIT_LOW, "LCD BACKLIGHT" },
113 static struct map_desc edb7211_io_desc[] __initdata = {
114 { /* Memory-mapped extra keyboard row */
115 .virtual = IO_ADDRESS(EP7211_PHYS_EXTKBD),
116 .pfn = __phys_to_pfn(EP7211_PHYS_EXTKBD),
117 .length = SZ_1M,
118 .type = MT_DEVICE,
122 void __init edb7211_map_io(void)
124 clps711x_map_io();
125 iotable_init(edb7211_io_desc, ARRAY_SIZE(edb7211_io_desc));
128 /* Reserve screen memory region at the start of main system memory. */
129 static void __init edb7211_reserve(void)
131 memblock_reserve(PHYS_OFFSET, VIDEORAM_SIZE);
134 static void __init
135 fixup_edb7211(struct tag *tags, char **cmdline, struct meminfo *mi)
138 * Bank start addresses are not present in the information
139 * passed in from the boot loader. We could potentially
140 * detect them, but instead we hard-code them.
142 * Banks sizes _are_ present in the param block, but we're
143 * not using that information yet.
145 mi->bank[0].start = 0xc0000000;
146 mi->bank[0].size = SZ_8M;
147 mi->bank[1].start = 0xc1000000;
148 mi->bank[1].size = SZ_8M;
149 mi->nr_banks = 2;
152 static void __init edb7211_init(void)
154 gpio_request_array(edb7211_gpios, ARRAY_SIZE(edb7211_gpios));
156 platform_device_register(&edb7211_flash_pdev);
157 platform_device_register_data(&platform_bus, "platform-lcd", 0,
158 &edb7211_lcd_power_pdata,
159 sizeof(edb7211_lcd_power_pdata));
160 platform_device_register_data(&platform_bus, "generic-bl", 0,
161 &edb7211_lcd_backlight_pdata,
162 sizeof(edb7211_lcd_backlight_pdata));
163 platform_device_register_simple("video-clps711x", 0, NULL, 0);
164 platform_device_register_simple("cs89x0", 0, edb7211_cs8900_resource,
165 ARRAY_SIZE(edb7211_cs8900_resource));
168 MACHINE_START(EDB7211, "CL-EDB7211 (EP7211 eval board)")
169 /* Maintainer: Jon McClintock */
170 .atag_offset = VIDEORAM_SIZE + 0x100,
171 .nr_irqs = CLPS711X_NR_IRQS,
172 .fixup = fixup_edb7211,
173 .reserve = edb7211_reserve,
174 .map_io = edb7211_map_io,
175 .init_irq = clps711x_init_irq,
176 .init_time = clps711x_timer_init,
177 .init_machine = edb7211_init,
178 .handle_irq = clps711x_handle_irq,
179 .restart = clps711x_restart,
180 MACHINE_END