[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>

3 files changed, 168 insertions, 0 deletions

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