From 1f26a8a0fd6d067237f87a95d96ddfe263b96a94 Mon Sep 17 00:00:00 2001
From: Kwangwoo Lee <kwangwoo.lee@gmail.com>
Date: Tue, 28 Apr 2009 10:35:57 +0900
Subject: [PATCH] S3C64XX: Basic A&W6410 board support patch V2

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>
---
 arch/arm/mach-s3c6410/Kconfig        |   8 ++
 arch/arm/mach-s3c6410/Makefile       |   3 +
 arch/arm/mach-s3c6410/mach-anw6410.c | 245 +++++++++++++++++++++++++++++++++++
 3 files changed, 256 insertions(+)
 create mode 100644 arch/arm/mach-s3c6410/mach-anw6410.c

(limited to 'arch/arm/mach-s3c6410')

diff --git a/arch/arm/mach-s3c6410/Kconfig b/arch/arm/mach-s3c6410/Kconfig
index 53350b4493b..e5a575fdf81 100644
--- a/arch/arm/mach-s3c6410/Kconfig
+++ b/arch/arm/mach-s3c6410/Kconfig
@@ -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
diff --git a/arch/arm/mach-s3c6410/Makefile b/arch/arm/mach-s3c6410/Makefile
index 03e9ea6c64e..6f9deac8861 100644
--- a/arch/arm/mach-s3c6410/Makefile
+++ b/arch/arm/mach-s3c6410/Makefile
@@ -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
+
+
diff --git a/arch/arm/mach-s3c6410/mach-anw6410.c b/arch/arm/mach-s3c6410/mach-anw6410.c
new file mode 100644
index 00000000000..661cca63de2
--- /dev/null
+++ b/arch/arm/mach-s3c6410/mach-anw6410.c
@@ -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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