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[PATCH] S3C64XX: Basic A&W6410 board support patch V2
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A&W6410 board uses Samsung S3C6410 SoC and it is registered with 2183.
Framebuffer and ethernet devices are supported currently.

Unnecessary header file is removed.
Fix to use __raw_writel() and __raw_readl() for accessing mapped address.

Thank you for your comments.

Signed-off-by: Kwangwoo Lee <kwangwoo.lee@gmail.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Kwangwoo Lee authored and Ben Dooks committed May 1, 2009
1 parent f53aee2 commit 1f26a8a
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8 changes: 8 additions & 0 deletions arch/arm/mach-s3c6410/Kconfig
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Expand Up @@ -19,6 +19,14 @@ config S3C6410_SETUP_SDHCI
help
Internal helper functions for S3C6410 based SDHCI systems

config MACH_ANW6410
bool "A&W6410"
select CPU_S3C6410
select S3C_DEV_FB
select S3C64XX_SETUP_FB_24BPP
help
Machine support for the A&W6410

config MACH_SMDK6410
bool "SMDK6410"
select CPU_S3C6410
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3 changes: 3 additions & 0 deletions arch/arm/mach-s3c6410/Makefile
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Expand Up @@ -20,5 +20,8 @@ obj-$(CONFIG_S3C6410_SETUP_SDHCI) += setup-sdhci.o

# machine support

obj-$(CONFIG_MACH_ANW6410) += mach-anw6410.o
obj-$(CONFIG_MACH_SMDK6410) += mach-smdk6410.o
obj-$(CONFIG_MACH_NCP) += mach-ncp.o


245 changes: 245 additions & 0 deletions arch/arm/mach-s3c6410/mach-anw6410.c
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@@ -0,0 +1,245 @@
/* linux/arch/arm/mach-s3c6410/mach-anw6410.c
*
* Copyright 2008 Openmoko, Inc.
* Copyright 2008 Simtec Electronics
* Ben Dooks <ben@simtec.co.uk>
* http://armlinux.simtec.co.uk/
* Copyright 2009 Kwangwoo Lee
* Kwangwoo Lee <kwangwoo.lee@gmail.com>
*
* 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/types.h>
#include <linux/interrupt.h>
#include <linux/list.h>
#include <linux/timer.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/dm9000.h>

#include <video/platform_lcd.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/s3c6410.h>
#include <plat/clock.h>
#include <plat/devs.h>
#include <plat/cpu.h>
#include <plat/regs-gpio.h>
#include <plat/regs-modem.h>

/* DM9000 */
#define ANW6410_PA_DM9000 (0x18000000)

/* A hardware buffer to control external devices is mapped at 0x30000000.
* It can not be read. So current status must be kept in anw6410_extdev_status.
*/
#define ANW6410_VA_EXTDEV S3C_ADDR(0x02000000)
#define ANW6410_PA_EXTDEV (0x30000000)

#define ANW6410_EN_DM9000 (1<<11)
#define ANW6410_EN_LCD (1<<14)

static __u32 anw6410_extdev_status;

static struct s3c2410_uartcfg anw6410_uartcfgs[] __initdata = {
[0] = {
.hwport = 0,
.flags = 0,
.ucon = 0x3c5,
.ulcon = 0x03,
.ufcon = 0x51,
},
[1] = {
.hwport = 1,
.flags = 0,
.ucon = 0x3c5,
.ulcon = 0x03,
.ufcon = 0x51,
},
};

/* framebuffer and LCD setup. */
static void __init anw6410_lcd_mode_set(void)
{
u32 tmp;

/* 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);
}

/* GPF1 = LCD panel power
* GPF4 = LCD backlight control
*/
static void anw6410_lcd_power_set(struct plat_lcd_data *pd,
unsigned int power)
{
if (power) {
anw6410_extdev_status |= (ANW6410_EN_LCD << 16);
__raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);

gpio_direction_output(S3C64XX_GPF(1), 1);
gpio_direction_output(S3C64XX_GPF(4), 1);
} else {
anw6410_extdev_status &= ~(ANW6410_EN_LCD << 16);
__raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);

gpio_direction_output(S3C64XX_GPF(1), 0);
gpio_direction_output(S3C64XX_GPF(4), 0);
}
}

static struct plat_lcd_data anw6410_lcd_power_data = {
.set_power = anw6410_lcd_power_set,
};

static struct platform_device anw6410_lcd_powerdev = {
.name = "platform-lcd",
.dev.parent = &s3c_device_fb.dev,
.dev.platform_data = &anw6410_lcd_power_data,
};

static struct s3c_fb_pd_win anw6410_fb_win0 = {
/* this is to ensure we use 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 anw6410_lcd_pdata __initdata = {
.setup_gpio = s3c64xx_fb_gpio_setup_24bpp,
.win[0] = &anw6410_fb_win0,
.vidcon0 = VIDCON0_VIDOUT_RGB | VIDCON0_PNRMODE_RGB,
.vidcon1 = VIDCON1_INV_HSYNC | VIDCON1_INV_VSYNC,
};

/* DM9000AEP 10/100 ethernet controller */
static void __init anw6410_dm9000_enable(void)
{
anw6410_extdev_status |= (ANW6410_EN_DM9000 << 16);
__raw_writel(anw6410_extdev_status, ANW6410_VA_EXTDEV);
}

static struct resource anw6410_dm9000_resource[] = {
[0] = {
.start = ANW6410_PA_DM9000,
.end = ANW6410_PA_DM9000 + 3,
.flags = IORESOURCE_MEM,
},
[1] = {
.start = ANW6410_PA_DM9000 + 4,
.end = ANW6410_PA_DM9000 + 4 + 500,
.flags = IORESOURCE_MEM,
},
[2] = {
.start = IRQ_EINT(15),
.end = IRQ_EINT(15),
.flags = IORESOURCE_IRQ | IRQF_TRIGGER_HIGH,
},
};

static struct dm9000_plat_data anw6410_dm9000_pdata = {
.flags = (DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM),
/* dev_addr can be set to provide hwaddr. */
};

static struct platform_device anw6410_device_eth = {
.name = "dm9000",
.id = -1,
.num_resources = ARRAY_SIZE(anw6410_dm9000_resource),
.resource = anw6410_dm9000_resource,
.dev = {
.platform_data = &anw6410_dm9000_pdata,
},
};

static struct map_desc anw6410_iodesc[] __initdata = {
{
.virtual = (unsigned long)ANW6410_VA_EXTDEV,
.pfn = __phys_to_pfn(ANW6410_PA_EXTDEV),
.length = SZ_64K,
.type = MT_DEVICE,
},
};

static struct platform_device *anw6410_devices[] __initdata = {
&s3c_device_fb,
&anw6410_lcd_powerdev,
&anw6410_device_eth,
};

static void __init anw6410_map_io(void)
{
s3c64xx_init_io(anw6410_iodesc, ARRAY_SIZE(anw6410_iodesc));
s3c24xx_init_clocks(12000000);
s3c24xx_init_uarts(anw6410_uartcfgs, ARRAY_SIZE(anw6410_uartcfgs));

anw6410_lcd_mode_set();
}

static void __init anw6410_machine_init(void)
{
s3c_fb_set_platdata(&anw6410_lcd_pdata);

gpio_request(S3C64XX_GPF(1), "panel power");
gpio_request(S3C64XX_GPF(4), "LCD backlight");

anw6410_dm9000_enable();

platform_add_devices(anw6410_devices, ARRAY_SIZE(anw6410_devices));
}

MACHINE_START(ANW6410, "A&W6410")
/* Maintainer: Kwangwoo Lee <kwangwoo.lee@gmail.com> */
.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 = anw6410_map_io,
.init_machine = anw6410_machine_init,
.timer = &s3c24xx_timer,
MACHINE_END

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