mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-20 00:11:22 +00:00
ARM: S3C6410: airgoo hmt board support
Add support for the Airgoo HMT (home media terminal) device. The HMT is a tablet device with a s3c6410, a 7" LCD and a number of peripheral connections. For more details of the hardware specs, see: http://article.gmane.org/gmane.linux.debian.devel.embedded/4307 Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> [ben-linux@fluff.org: subject rewrite] Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Peter Korsgaard
Ben Dooks
parent
9b71de49b0
commit
2896bda482
@ -97,3 +97,13 @@ config MACH_NCP
|
||||
select S3C64XX_SETUP_I2C1
|
||||
help
|
||||
Machine support for the Samsung NCP
|
||||
|
||||
config MACH_HMT
|
||||
bool "Airgoo HMT"
|
||||
select CPU_S3C6410
|
||||
select S3C_DEV_FB
|
||||
select S3C_DEV_USB_HOST
|
||||
select S3C64XX_SETUP_FB_24BPP
|
||||
select HAVE_PWM
|
||||
help
|
||||
Machine support for the Airgoo HMT
|
||||
|
||||
@ -23,5 +23,4 @@ obj-$(CONFIG_S3C6410_SETUP_SDHCI) += setup-sdhci.o
|
||||
obj-$(CONFIG_MACH_ANW6410) += mach-anw6410.o
|
||||
obj-$(CONFIG_MACH_SMDK6410) += mach-smdk6410.o
|
||||
obj-$(CONFIG_MACH_NCP) += mach-ncp.o
|
||||
|
||||
|
||||
obj-$(CONFIG_MACH_HMT) += mach-hmt.o
|
||||
|
||||
276
arch/arm/mach-s3c6410/mach-hmt.c
Normal file
276
arch/arm/mach-s3c6410/mach-hmt.c
Normal file
@ -0,0 +1,276 @@
|
||||
/* 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 <plat/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(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 = {
|
||||
.pixclock = 41094,
|
||||
.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_usb,
|
||||
&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_device_nand.dev.platform_data = &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
|
||||
Loading…
Reference in New Issue
Block a user