[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>

3 files changed, 256 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c6410/Kconfig b/arch/arm/mach-s3c6410/Kconfig
index 53350b4493bd..e5a575fdf817 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 03e9ea6c64e7..6f9deac88612 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 000000000000..661cca63de25
--- /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