diff options
Diffstat (limited to 'kernel/arch/arm/mach-clps711x/board-edb7211.c')
| -rw-r--r-- | kernel/arch/arm/mach-clps711x/board-edb7211.c | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/kernel/arch/arm/mach-clps711x/board-edb7211.c b/kernel/arch/arm/mach-clps711x/board-edb7211.c new file mode 100644 index 000000000..f33979784 --- /dev/null +++ b/kernel/arch/arm/mach-clps711x/board-edb7211.c @@ -0,0 +1,188 @@ +/* + * 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/platform_device.h> +#include <linux/pwm.h> +#include <linux/pwm_backlight.h> +#include <linux/memblock.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 struct pwm_lookup edb7211_pwm_lookup[] = { + PWM_LOOKUP("clps711x-pwm", 0, "pwm-backlight.0", NULL, + 0, PWM_POLARITY_NORMAL), +}; + +static struct platform_pwm_backlight_data pwm_bl_pdata = { + .dft_brightness = 0x01, + .max_brightness = 0x0f, + .enable_gpio = EDB7211_LCDBL, +}; + +static struct resource clps711x_pwm_res = + DEFINE_RES_MEM(CLPS711X_PHYS_BASE + PMPCON, SZ_4); + +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" }, +}; + +/* 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) +{ + /* + * 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. + */ + memblock_add(0xc0000000, SZ_8M); + memblock_add(0xc1000000, SZ_8M); +} + +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(NULL, "platform-lcd", 0, + &edb7211_lcd_power_pdata, + sizeof(edb7211_lcd_power_pdata)); + + platform_device_register_simple("clps711x-pwm", PLATFORM_DEVID_NONE, + &clps711x_pwm_res, 1); + pwm_add_table(edb7211_pwm_lookup, ARRAY_SIZE(edb7211_pwm_lookup)); + + platform_device_register_data(&platform_bus, "pwm-backlight", 0, + &pwm_bl_pdata, sizeof(pwm_bl_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(NULL, "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_irq = clps711x_init_irq, + .init_time = clps711x_timer_init, + .init_machine = clps711x_devices_init, + .init_late = edb7211_init_late, + .restart = clps711x_restart, +MACHINE_END |