mirror of https://gitee.com/openkylin/linux.git
190 lines
5.2 KiB
C
190 lines
5.2 KiB
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" },
|
|
};
|
|
|
|
/* 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,
|
|
.fixup = fixup_edb7211,
|
|
.reserve = edb7211_reserve,
|
|
.map_io = clps711x_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,
|
|
.restart = clps711x_restart,
|
|
MACHINE_END
|