From 4ab9897172b7ff3a1a37b65b53f71c5795a577b0 Mon Sep 17 00:00:00 2001
From: Ramax Lo <ramaxlo@gmail.com>
Date: Mon, 7 Jul 2008 18:12:36 +0100
Subject: [PATCH] [ARM] S3C2440: Add AT2440EVB board support

Add basic support for AT2440EVB board based on Samsung S3C2440 SoC.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Ramax Lo <ramaxlo@gmail.com>
---
 arch/arm/mach-s3c2440/Kconfig          |   5 +
 arch/arm/mach-s3c2440/Makefile         |   1 +
 arch/arm/mach-s3c2440/mach-at2440evb.c | 162 +++++++++++++++++++++++++
 3 files changed, 168 insertions(+)
 create mode 100644 arch/arm/mach-s3c2440/mach-at2440evb.c

diff --git a/arch/arm/mach-s3c2440/Kconfig b/arch/arm/mach-s3c2440/Kconfig
index dcaa4dbebb37..25de042ab996 100644
--- a/arch/arm/mach-s3c2440/Kconfig
+++ b/arch/arm/mach-s3c2440/Kconfig
@@ -68,6 +68,11 @@ config SMDK2440_CPU2440
 	default y if ARCH_S3C2440
 	select CPU_S3C2440
 
+config MACH_AT2440EVB
+	bool "Avantech AT2440EVB development board"
+	select CPU_S3C2440
+	help
+	  Say Y here if you are using the AT2440EVB development board
 
 endmenu
 
diff --git a/arch/arm/mach-s3c2440/Makefile b/arch/arm/mach-s3c2440/Makefile
index c81ed6248dcb..0b4440e79b90 100644
--- a/arch/arm/mach-s3c2440/Makefile
+++ b/arch/arm/mach-s3c2440/Makefile
@@ -21,3 +21,4 @@ obj-$(CONFIG_MACH_OSIRIS)	+= mach-osiris.o
 obj-$(CONFIG_MACH_RX3715)	+= mach-rx3715.o
 obj-$(CONFIG_ARCH_S3C2440)	+= mach-smdk2440.o
 obj-$(CONFIG_MACH_NEXCODER_2440) += mach-nexcoder.o
+obj-$(CONFIG_MACH_AT2440EVB) += mach-at2440evb.o
diff --git a/arch/arm/mach-s3c2440/mach-at2440evb.c b/arch/arm/mach-s3c2440/mach-at2440evb.c
new file mode 100644
index 000000000000..99f660564c11
--- /dev/null
+++ b/arch/arm/mach-s3c2440/mach-at2440evb.c
@@ -0,0 +1,162 @@
+/* linux/arch/arm/mach-s3c2440/mach-at2440evb.c
+ *
+ * Copyright (c) 2008 Ramax Lo <ramaxlo@gmail.com>
+ *      Based on mach-anubis.c by Ben Dooks <ben@simtec.co.uk>
+ *      and modifications by SBZ <sbz@spgui.org> and
+ *      Weibing <http://weibing.blogbus.com>
+ *
+ * For product information, visit http://www.arm9e.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/io.h>
+#include <linux/serial_core.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/mach-types.h>
+
+#include <asm/plat-s3c/regs-serial.h>
+#include <asm/arch/regs-gpio.h>
+#include <asm/arch/regs-mem.h>
+#include <asm/arch/regs-lcd.h>
+#include <asm/plat-s3c/nand.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/nand_ecc.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/plat-s3c24xx/clock.h>
+#include <asm/plat-s3c24xx/devs.h>
+#include <asm/plat-s3c24xx/cpu.h>
+
+static struct map_desc at2440evb_iodesc[] __initdata = {
+	/* Nothing here */
+};
+
+#define UCON S3C2410_UCON_DEFAULT
+#define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
+#define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
+
+static struct s3c24xx_uart_clksrc at2440evb_serial_clocks[] = {
+	[0] = {
+		.name		= "uclk",
+		.divisor	= 1,
+		.min_baud	= 0,
+		.max_baud	= 0,
+	},
+	[1] = {
+		.name		= "pclk",
+		.divisor	= 1,
+		.min_baud	= 0,
+		.max_baud	= 0,
+	}
+};
+
+
+static struct s3c2410_uartcfg at2440evb_uartcfgs[] __initdata = {
+	[0] = {
+		.hwport	     = 0,
+		.flags	     = 0,
+		.ucon	     = UCON,
+		.ulcon	     = ULCON,
+		.ufcon	     = UFCON,
+		.clocks	     = at2440evb_serial_clocks,
+		.clocks_size = ARRAY_SIZE(at2440evb_serial_clocks),
+	},
+	[1] = {
+		.hwport	     = 1,
+		.flags	     = 0,
+		.ucon	     = UCON,
+		.ulcon	     = ULCON,
+		.ufcon	     = UFCON,
+		.clocks	     = at2440evb_serial_clocks,
+		.clocks_size = ARRAY_SIZE(at2440evb_serial_clocks),
+	},
+};
+
+/* NAND Flash on AT2440EVB board */
+
+static struct mtd_partition at2440evb_default_nand_part[] = {
+	[0] = {
+		.name	= "Boot Agent",
+		.size	= SZ_256K,
+		.offset	= 0,
+	},
+	[1] = {
+		.name	= "Kernel",
+		.size	= SZ_2M,
+		.offset	= SZ_256K,
+	},
+	[2] = {
+		.name	= "Root",
+		.offset	= SZ_256K + SZ_2M,
+		.size	= MTDPART_SIZ_FULL,
+	},
+};
+
+static struct s3c2410_nand_set at2440evb_nand_sets[] = {
+	[0] = {
+		.name		= "nand",
+		.nr_chips	= 1,
+		.nr_partitions	= ARRAY_SIZE(at2440evb_default_nand_part),
+		.partitions	= at2440evb_default_nand_part,
+	},
+};
+
+static struct s3c2410_platform_nand at2440evb_nand_info = {
+	.tacls		= 25,
+	.twrph0		= 55,
+	.twrph1		= 40,
+	.nr_sets	= ARRAY_SIZE(at2440evb_nand_sets),
+	.sets		= at2440evb_nand_sets,
+};
+
+static struct platform_device *at2440evb_devices[] __initdata = {
+	&s3c_device_usb,
+	&s3c_device_wdt,
+	&s3c_device_adc,
+	&s3c_device_i2c,
+	&s3c_device_rtc,
+	&s3c_device_nand,
+};
+
+static void __init at2440evb_map_io(void)
+{
+	s3c_device_nand.dev.platform_data = &at2440evb_nand_info;
+
+	s3c24xx_init_io(at2440evb_iodesc, ARRAY_SIZE(at2440evb_iodesc));
+	s3c24xx_init_clocks(16934400);
+	s3c24xx_init_uarts(at2440evb_uartcfgs, ARRAY_SIZE(at2440evb_uartcfgs));
+}
+
+static void __init at2440evb_init(void)
+{
+	platform_add_devices(at2440evb_devices, ARRAY_SIZE(at2440evb_devices));
+}
+
+
+MACHINE_START(AT2440EVB, "AT2440EVB")
+	.phys_io	= S3C2410_PA_UART,
+	.io_pg_offst	= (((u32)S3C24XX_VA_UART) >> 18) & 0xfffc,
+	.boot_params	= S3C2410_SDRAM_PA + 0x100,
+	.map_io		= at2440evb_map_io,
+	.init_machine	= at2440evb_init,
+	.init_irq	= s3c24xx_init_irq,
+	.timer		= &s3c24xx_timer,
+MACHINE_END
-- 
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