mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-20 02:34:23 +08:00
daf695fca8
Since "s3c-fb: Automatically calculate pixel clock when none is given", there's no need for manually calculating the pixel clock anymore so remove these lines and add the correct refresh rate where appropriately. Signed-off-by: Maurus Cuelenaere <mcuelenaere@gmail.com> Cc: Pawel Osciak <p.osciak@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: InKi Dae <inki.dae@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
276 lines
6.2 KiB
C
276 lines
6.2 KiB
C
/* mach-hmt.c - Platform code for Airgoo HMT
|
|
*
|
|
* Copyright 2009 Peter Korsgaard <jacmet@sunsite.dk>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
*/
|
|
|
|
#include <linux/kernel.h>
|
|
#include <linux/init.h>
|
|
#include <linux/serial_core.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/io.h>
|
|
#include <linux/i2c.h>
|
|
#include <linux/fb.h>
|
|
#include <linux/gpio.h>
|
|
#include <linux/delay.h>
|
|
#include <linux/leds.h>
|
|
#include <linux/pwm_backlight.h>
|
|
#include <linux/mtd/mtd.h>
|
|
#include <linux/mtd/partitions.h>
|
|
|
|
#include <asm/mach/arch.h>
|
|
#include <asm/mach/map.h>
|
|
#include <asm/mach/irq.h>
|
|
|
|
#include <mach/hardware.h>
|
|
#include <mach/regs-fb.h>
|
|
#include <mach/map.h>
|
|
|
|
#include <asm/irq.h>
|
|
#include <asm/mach-types.h>
|
|
|
|
#include <plat/regs-serial.h>
|
|
#include <plat/iic.h>
|
|
#include <plat/fb.h>
|
|
#include <plat/nand.h>
|
|
|
|
#include <mach/s3c6410.h>
|
|
#include <plat/clock.h>
|
|
#include <plat/devs.h>
|
|
#include <plat/cpu.h>
|
|
|
|
#define UCON S3C2410_UCON_DEFAULT
|
|
#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
|
|
#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
|
|
|
|
static struct s3c2410_uartcfg hmt_uartcfgs[] __initdata = {
|
|
[0] = {
|
|
.hwport = 0,
|
|
.flags = 0,
|
|
.ucon = UCON,
|
|
.ulcon = ULCON,
|
|
.ufcon = UFCON,
|
|
},
|
|
[1] = {
|
|
.hwport = 1,
|
|
.flags = 0,
|
|
.ucon = UCON,
|
|
.ulcon = ULCON,
|
|
.ufcon = UFCON,
|
|
},
|
|
[2] = {
|
|
.hwport = 2,
|
|
.flags = 0,
|
|
.ucon = UCON,
|
|
.ulcon = ULCON,
|
|
.ufcon = UFCON,
|
|
},
|
|
};
|
|
|
|
static int hmt_bl_init(struct device *dev)
|
|
{
|
|
int ret;
|
|
|
|
ret = gpio_request(S3C64XX_GPB(4), "lcd backlight enable");
|
|
if (!ret)
|
|
ret = gpio_direction_output(S3C64XX_GPB(4), 0);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hmt_bl_notify(struct device *dev, int brightness)
|
|
{
|
|
/*
|
|
* translate from CIELUV/CIELAB L*->brightness, E.G. from
|
|
* perceived luminance to light output. Assumes range 0..25600
|
|
*/
|
|
if (brightness < 0x800) {
|
|
/* Y = Yn * L / 903.3 */
|
|
brightness = (100*256 * brightness + 231245/2) / 231245;
|
|
} else {
|
|
/* Y = Yn * ((L + 16) / 116 )^3 */
|
|
int t = (brightness*4 + 16*1024 + 58)/116;
|
|
brightness = 25 * ((t * t * t + 0x100000/2) / 0x100000);
|
|
}
|
|
|
|
gpio_set_value(S3C64XX_GPB(4), brightness);
|
|
|
|
return brightness;
|
|
}
|
|
|
|
static void hmt_bl_exit(struct device *dev)
|
|
{
|
|
gpio_free(S3C64XX_GPB(4));
|
|
}
|
|
|
|
static struct platform_pwm_backlight_data hmt_backlight_data = {
|
|
.pwm_id = 1,
|
|
.max_brightness = 100 * 256,
|
|
.dft_brightness = 40 * 256,
|
|
.pwm_period_ns = 1000000000 / (100 * 256 * 20),
|
|
.init = hmt_bl_init,
|
|
.notify = hmt_bl_notify,
|
|
.exit = hmt_bl_exit,
|
|
|
|
};
|
|
|
|
static struct platform_device hmt_backlight_device = {
|
|
.name = "pwm-backlight",
|
|
.dev = {
|
|
.parent = &s3c_device_timer[1].dev,
|
|
.platform_data = &hmt_backlight_data,
|
|
},
|
|
};
|
|
|
|
static struct s3c_fb_pd_win hmt_fb_win0 = {
|
|
.win_mode = {
|
|
.left_margin = 8,
|
|
.right_margin = 13,
|
|
.upper_margin = 7,
|
|
.lower_margin = 5,
|
|
.hsync_len = 3,
|
|
.vsync_len = 1,
|
|
.xres = 800,
|
|
.yres = 480,
|
|
},
|
|
.max_bpp = 32,
|
|
.default_bpp = 16,
|
|
};
|
|
|
|
/* 405566 clocks per frame => 60Hz refresh requires 24333960Hz clock */
|
|
static struct s3c_fb_platdata hmt_lcd_pdata __initdata = {
|
|
.setup_gpio = s3c64xx_fb_gpio_setup_24bpp,
|
|
.win[0] = &hmt_fb_win0,
|
|
.vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
|
|
.vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
|
|
};
|
|
|
|
static struct mtd_partition hmt_nand_part[] = {
|
|
[0] = {
|
|
.name = "uboot",
|
|
.size = SZ_512K,
|
|
.offset = 0,
|
|
},
|
|
[1] = {
|
|
.name = "uboot-env1",
|
|
.size = SZ_256K,
|
|
.offset = SZ_512K,
|
|
},
|
|
[2] = {
|
|
.name = "uboot-env2",
|
|
.size = SZ_256K,
|
|
.offset = SZ_512K + SZ_256K,
|
|
},
|
|
[3] = {
|
|
.name = "kernel",
|
|
.size = SZ_2M,
|
|
.offset = SZ_1M,
|
|
},
|
|
[4] = {
|
|
.name = "rootfs",
|
|
.size = MTDPART_SIZ_FULL,
|
|
.offset = SZ_1M + SZ_2M,
|
|
},
|
|
};
|
|
|
|
static struct s3c2410_nand_set hmt_nand_sets[] = {
|
|
[0] = {
|
|
.name = "nand",
|
|
.nr_chips = 1,
|
|
.nr_partitions = ARRAY_SIZE(hmt_nand_part),
|
|
.partitions = hmt_nand_part,
|
|
},
|
|
};
|
|
|
|
static struct s3c2410_platform_nand hmt_nand_info = {
|
|
.tacls = 25,
|
|
.twrph0 = 55,
|
|
.twrph1 = 40,
|
|
.nr_sets = ARRAY_SIZE(hmt_nand_sets),
|
|
.sets = hmt_nand_sets,
|
|
};
|
|
|
|
static struct gpio_led hmt_leds[] = {
|
|
{ /* left function keys */
|
|
.name = "left:blue",
|
|
.gpio = S3C64XX_GPO(12),
|
|
.default_trigger = "default-on",
|
|
},
|
|
{ /* right function keys - red */
|
|
.name = "right:red",
|
|
.gpio = S3C64XX_GPO(13),
|
|
},
|
|
{ /* right function keys - green */
|
|
.name = "right:green",
|
|
.gpio = S3C64XX_GPO(14),
|
|
},
|
|
{ /* right function keys - blue */
|
|
.name = "right:blue",
|
|
.gpio = S3C64XX_GPO(15),
|
|
.default_trigger = "default-on",
|
|
},
|
|
};
|
|
|
|
static struct gpio_led_platform_data hmt_led_data = {
|
|
.num_leds = ARRAY_SIZE(hmt_leds),
|
|
.leds = hmt_leds,
|
|
};
|
|
|
|
static struct platform_device hmt_leds_device = {
|
|
.name = "leds-gpio",
|
|
.id = -1,
|
|
.dev.platform_data = &hmt_led_data,
|
|
};
|
|
|
|
static struct map_desc hmt_iodesc[] = {};
|
|
|
|
static struct platform_device *hmt_devices[] __initdata = {
|
|
&s3c_device_i2c0,
|
|
&s3c_device_nand,
|
|
&s3c_device_fb,
|
|
&s3c_device_ohci,
|
|
&s3c_device_timer[1],
|
|
&hmt_backlight_device,
|
|
&hmt_leds_device,
|
|
};
|
|
|
|
static void __init hmt_map_io(void)
|
|
{
|
|
s3c64xx_init_io(hmt_iodesc, ARRAY_SIZE(hmt_iodesc));
|
|
s3c24xx_init_clocks(12000000);
|
|
s3c24xx_init_uarts(hmt_uartcfgs, ARRAY_SIZE(hmt_uartcfgs));
|
|
}
|
|
|
|
static void __init hmt_machine_init(void)
|
|
{
|
|
s3c_i2c0_set_platdata(NULL);
|
|
s3c_fb_set_platdata(&hmt_lcd_pdata);
|
|
s3c_nand_set_platdata(&hmt_nand_info);
|
|
|
|
gpio_request(S3C64XX_GPC(7), "usb power");
|
|
gpio_direction_output(S3C64XX_GPC(7), 0);
|
|
gpio_request(S3C64XX_GPM(0), "usb power");
|
|
gpio_direction_output(S3C64XX_GPM(0), 1);
|
|
gpio_request(S3C64XX_GPK(7), "usb power");
|
|
gpio_direction_output(S3C64XX_GPK(7), 1);
|
|
gpio_request(S3C64XX_GPF(13), "usb power");
|
|
gpio_direction_output(S3C64XX_GPF(13), 1);
|
|
|
|
platform_add_devices(hmt_devices, ARRAY_SIZE(hmt_devices));
|
|
}
|
|
|
|
MACHINE_START(HMT, "Airgoo-HMT")
|
|
/* Maintainer: Peter Korsgaard <jacmet@sunsite.dk> */
|
|
.phys_io = S3C_PA_UART & 0xfff00000,
|
|
.io_pg_offst = (((u32)S3C_VA_UART) >> 18) & 0xfffc,
|
|
.boot_params = S3C64XX_PA_SDRAM + 0x100,
|
|
.init_irq = s3c6410_init_irq,
|
|
.map_io = hmt_map_io,
|
|
.init_machine = hmt_machine_init,
|
|
.timer = &s3c24xx_timer,
|
|
MACHINE_END
|