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linux/arch/arm/mach-s3c64xx/mach-real6410.c
Nicolas Pitre 170a59080d ARM: mach-s3c64xx: convert boot_params to atag_offset 
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2011-08-21 17:15:11 -04:00

339 lines
7.6 KiB
C
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/* linux/arch/arm/mach-s3c64xx/mach-real6410.c
*
* Copyright 2010 Darius Augulis <augulis.darius@gmail.com>
* Copyright 2008 Openmoko, Inc.
* Copyright 2008 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
* http://armlinux.simtec.co.uk/
*
* 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/init.h>
#include <linux/interrupt.h>
#include <linux/fb.h>
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/dm9000.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/platform_device.h>
#include <linux/serial_core.h>
#include <linux/types.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/map.h>
#include <mach/regs-gpio.h>
#include <mach/regs-modem.h>
#include <mach/regs-srom.h>
#include <mach/s3c6410.h>
#include <plat/adc.h>
#include <plat/cpu.h>
#include <plat/devs.h>
#include <plat/fb.h>
#include <plat/nand.h>
#include <plat/regs-serial.h>
#include <plat/ts.h>
#include <plat/regs-fb-v4.h>
#include <video/platform_lcd.h>
#define UCON S3C2410_UCON_DEFAULT
#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
static struct s3c2410_uartcfg real6410_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,
},
[3] = {
.hwport = 3,
.flags = 0,
.ucon = UCON,
.ulcon = ULCON,
.ufcon = UFCON,
},
};
/* DM9000AEP 10/100 ethernet controller */
static struct resource real6410_dm9k_resource[] = {
[0] = {
.start = S3C64XX_PA_XM0CSN1,
.end = S3C64XX_PA_XM0CSN1 + 1,
.flags = IORESOURCE_MEM
},
[1] = {
.start = S3C64XX_PA_XM0CSN1 + 4,
.end = S3C64XX_PA_XM0CSN1 + 5,
.flags = IORESOURCE_MEM
},
[2] = {
.start = S3C_EINT(7),
.end = S3C_EINT(7),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL
}
};
static struct dm9000_plat_data real6410_dm9k_pdata = {
.flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
};
static struct platform_device real6410_device_eth = {
.name = "dm9000",
.id = -1,
.num_resources = ARRAY_SIZE(real6410_dm9k_resource),
.resource = real6410_dm9k_resource,
.dev = {
.platform_data = &real6410_dm9k_pdata,
},
};
static struct s3c_fb_pd_win real6410_fb_win[] = {
{
.win_mode = { /* 4.3" 480x272 */
.left_margin = 3,
.right_margin = 2,
.upper_margin = 1,
.lower_margin = 1,
.hsync_len = 40,
.vsync_len = 1,
.xres = 480,
.yres = 272,
},
.max_bpp = 32,
.default_bpp = 16,
}, {
.win_mode = { /* 7.0" 800x480 */
.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,
},
};
static struct s3c_fb_platdata real6410_lcd_pdata __initdata = {
.setup_gpio = s3c64xx_fb_gpio_setup_24bpp,
.win[0] = &real6410_fb_win[0],
.vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
.vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
};
static struct mtd_partition real6410_nand_part[] = {
[0] = {
.name = "uboot",
.size = SZ_1M,
.offset = 0,
},
[1] = {
.name = "kernel",
.size = SZ_2M,
.offset = SZ_1M,
},
[2] = {
.name = "rootfs",
.size = MTDPART_SIZ_FULL,
.offset = SZ_1M + SZ_2M,
},
};
static struct s3c2410_nand_set real6410_nand_sets[] = {
[0] = {
.name = "nand",
.nr_chips = 1,
.nr_partitions = ARRAY_SIZE(real6410_nand_part),
.partitions = real6410_nand_part,
},
};
static struct s3c2410_platform_nand real6410_nand_info = {
.tacls = 25,
.twrph0 = 55,
.twrph1 = 40,
.nr_sets = ARRAY_SIZE(real6410_nand_sets),
.sets = real6410_nand_sets,
};
static struct platform_device *real6410_devices[] __initdata = {
&real6410_device_eth,
&s3c_device_hsmmc0,
&s3c_device_hsmmc1,
&s3c_device_fb,
&s3c_device_nand,
&s3c_device_adc,
&s3c_device_ts,
&s3c_device_ohci,
};
static struct s3c2410_ts_mach_info s3c_ts_platform __initdata = {
.delay = 10000,
.presc = 49,
.oversampling_shift = 2,
};
static void __init real6410_map_io(void)
{
u32 tmp;
s3c64xx_init_io(NULL, 0);
s3c24xx_init_clocks(12000000);
s3c24xx_init_uarts(real6410_uartcfgs, ARRAY_SIZE(real6410_uartcfgs));
/* set the LCD type */
tmp = __raw_readl(S3C64XX_SPCON);
tmp &= ~S3C64XX_SPCON_LCD_SEL_MASK;
tmp |= S3C64XX_SPCON_LCD_SEL_RGB;
__raw_writel(tmp, S3C64XX_SPCON);
/* remove the LCD bypass */
tmp = __raw_readl(S3C64XX_MODEM_MIFPCON);
tmp &= ~MIFPCON_LCD_BYPASS;
__raw_writel(tmp, S3C64XX_MODEM_MIFPCON);
}
/*
* real6410_features string
*
* 0-9 LCD configuration
*
*/
static char real6410_features_str[12] __initdata = "0";
static int __init real6410_features_setup(char *str)
{
if (str)
strlcpy(real6410_features_str, str,
sizeof(real6410_features_str));
return 1;
}
__setup("real6410=", real6410_features_setup);
#define FEATURE_SCREEN (1 << 0)
struct real6410_features_t {
int done;
int lcd_index;
};
static void real6410_parse_features(
struct real6410_features_t *features,
const char *features_str)
{
const char *fp = features_str;
features->done = 0;
features->lcd_index = 0;
while (*fp) {
char f = *fp++;
switch (f) {
case '0'...'9': /* tft screen */
if (features->done & FEATURE_SCREEN) {
printk(KERN_INFO "REAL6410: '%c' ignored, "
"screen type already set\n", f);
} else {
int li = f - '0';
if (li >= ARRAY_SIZE(real6410_fb_win))
printk(KERN_INFO "REAL6410: '%c' out "
"of range LCD mode\n", f);
else {
features->lcd_index = li;
}
}
features->done |= FEATURE_SCREEN;
break;
}
}
}
static void __init real6410_machine_init(void)
{
u32 cs1;
struct real6410_features_t features = { 0 };
printk(KERN_INFO "REAL6410: Option string real6410=%s\n",
real6410_features_str);
/* Parse the feature string */
real6410_parse_features(&features, real6410_features_str);
real6410_lcd_pdata.win[0] = &real6410_fb_win[features.lcd_index];
printk(KERN_INFO "REAL6410: selected LCD display is %dx%d\n",
real6410_lcd_pdata.win[0]->win_mode.xres,
real6410_lcd_pdata.win[0]->win_mode.yres);
s3c_fb_set_platdata(&real6410_lcd_pdata);
s3c_nand_set_platdata(&real6410_nand_info);
s3c24xx_ts_set_platdata(&s3c_ts_platform);
/* configure nCS1 width to 16 bits */
cs1 = __raw_readl(S3C64XX_SROM_BW) &
~(S3C64XX_SROM_BW__CS_MASK << S3C64XX_SROM_BW__NCS1__SHIFT);
cs1 |= ((1 << S3C64XX_SROM_BW__DATAWIDTH__SHIFT) |
(1 << S3C64XX_SROM_BW__WAITENABLE__SHIFT) |
(1 << S3C64XX_SROM_BW__BYTEENABLE__SHIFT)) <<
S3C64XX_SROM_BW__NCS1__SHIFT;
__raw_writel(cs1, S3C64XX_SROM_BW);
/* set timing for nCS1 suitable for ethernet chip */
__raw_writel((0 << S3C64XX_SROM_BCX__PMC__SHIFT) |
(6 << S3C64XX_SROM_BCX__TACP__SHIFT) |
(4 << S3C64XX_SROM_BCX__TCAH__SHIFT) |
(1 << S3C64XX_SROM_BCX__TCOH__SHIFT) |
(13 << S3C64XX_SROM_BCX__TACC__SHIFT) |
(4 << S3C64XX_SROM_BCX__TCOS__SHIFT) |
(0 << S3C64XX_SROM_BCX__TACS__SHIFT), S3C64XX_SROM_BC1);
gpio_request(S3C64XX_GPF(15), "LCD power");
platform_add_devices(real6410_devices, ARRAY_SIZE(real6410_devices));
}
MACHINE_START(REAL6410, "REAL6410")
/* Maintainer: Darius Augulis <augulis.darius@gmail.com> */
.atag_offset = 0x100,
.init_irq = s3c6410_init_irq,
.map_io = real6410_map_io,
.init_machine = real6410_machine_init,
.timer = &s3c24xx_timer,
MACHINE_END
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