From a6925c1c515513e22b0419e1a41155c88d22b1f4 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben-linux@fluff.org>
Date: Tue, 24 Mar 2009 17:25:40 +0000
Subject: [PATCH] [ARM] S3C6400: Core support for S3C6400 SoC

Add the core support files for the Samsung S3C6400 SoC.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
---
 arch/arm/mach-s3c6400/Kconfig                | 13 ++-
 arch/arm/mach-s3c6400/Makefile               |  2 +-
 arch/arm/mach-s3c6400/s3c6400.c              | 83 ++++++++++++++++++++
 arch/arm/plat-s3c64xx/include/plat/s3c6400.h |  1 +
 4 files changed, 95 insertions(+), 4 deletions(-)
 create mode 100644 arch/arm/mach-s3c6400/s3c6400.c

diff --git a/arch/arm/mach-s3c6400/Kconfig b/arch/arm/mach-s3c6400/Kconfig
index da87f2df103f..f0292a8cddde 100644
--- a/arch/arm/mach-s3c6400/Kconfig
+++ b/arch/arm/mach-s3c6400/Kconfig
@@ -5,13 +5,20 @@
 #
 # Licensed under GPLv2
 
-# Currently nothing here, this will be added later
+# Configuration options for the S3C6410 CPU
 
-# machine support
+config CPU_S3C6400
+	bool
+	select CPU_S3C6400_INIT
+	select CPU_S3C6400_CLOCK
+	help
+	  Enable S3C6400 CPU support
+
+# S36400 Macchine support
 
 config MACH_SMDK6400
        bool "SMDK6400"
-	select CPU_S3C6410
+	select CPU_S3C6400
 	select S3C_DEV_HSMMC
 	help
 	  Machine support for the Samsung SMDK6400
diff --git a/arch/arm/mach-s3c6400/Makefile b/arch/arm/mach-s3c6400/Makefile
index 82cb48a2c2b0..07eac2be6f6f 100644
--- a/arch/arm/mach-s3c6400/Makefile
+++ b/arch/arm/mach-s3c6400/Makefile
@@ -12,7 +12,7 @@ obj-				:=
 
 # Core support for S3C6400 system
 
-obj-n				+= blank.o
+obj-$(CONFIG_CPU_S3C6400)	+= s3c6400.o
 
 # Machine support
 
diff --git a/arch/arm/mach-s3c6400/s3c6400.c b/arch/arm/mach-s3c6400/s3c6400.c
new file mode 100644
index 000000000000..d11a4272b94c
--- /dev/null
+++ b/arch/arm/mach-s3c6400/s3c6400.c
@@ -0,0 +1,83 @@
+/* linux/arch/arm/mach-s3c6410/cpu.c
+ *
+ * Copyright 2009 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *	http://armlinux.simtec.co.uk/
+ *
+ * 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/clk.h>
+#include <linux/io.h>
+#include <linux/sysdev.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 <mach/hardware.h>
+#include <asm/irq.h>
+
+#include <plat/cpu-freq.h>
+#include <plat/regs-serial.h>
+
+#include <plat/cpu.h>
+#include <plat/devs.h>
+#include <plat/clock.h>
+#include <plat/sdhci.h>
+#include <plat/iic-core.h>
+#include <plat/s3c6400.h>
+
+void __init s3c6400_map_io(void)
+{
+	/* the i2c device is directly compatible with s3c2440 */
+	s3c_i2c0_setname("s3c2440-i2c");
+}
+
+void __init s3c6400_init_clocks(int xtal)
+{
+	printk(KERN_DEBUG "%s: initialising clocks\n", __func__);
+	s3c24xx_register_baseclocks(xtal);
+	s3c64xx_register_clocks();
+	s3c6400_register_clocks();
+	s3c6400_setup_clocks();
+}
+
+void __init s3c6400_init_irq(void)
+{
+	/* VIC0 does not have IRQS 5..7,
+	 * VIC1 is fully populated. */
+	s3c64xx_init_irq(~0 & ~(0xf << 5), ~0);
+}
+
+struct sysdev_class s3c6400_sysclass = {
+	.name	= "s3c6400-core",
+};
+
+static struct sys_device s3c6400_sysdev = {
+	.cls	= &s3c6400_sysclass,
+};
+
+static int __init s3c6400_core_init(void)
+{
+	return sysdev_class_register(&s3c6400_sysclass);
+}
+
+core_initcall(s3c6400_core_init);
+
+int __init s3c6400_init(void)
+{
+	printk("S3C6400: Initialising architecture\n");
+
+	return sysdev_register(&s3c6400_sysdev);
+}
diff --git a/arch/arm/plat-s3c64xx/include/plat/s3c6400.h b/arch/arm/plat-s3c64xx/include/plat/s3c6400.h
index 571eaa2e54f1..e12296666d46 100644
--- a/arch/arm/plat-s3c64xx/include/plat/s3c6400.h
+++ b/arch/arm/plat-s3c64xx/include/plat/s3c6400.h
@@ -21,6 +21,7 @@ extern void s3c6400_setup_clocks(void);
 #ifdef CONFIG_CPU_S3C6400
 
 extern  int s3c6400_init(void);
+extern void s3c6400_init_irq(void);
 extern void s3c6400_map_io(void);
 extern void s3c6400_init_clocks(int xtal);