Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

34 files changed, 7722 insertions, 0 deletions

diff --git a/arch/arm/mach-s3c2410/Kconfig b/arch/arm/mach-s3c2410/Kconfig
new file mode 100644
index 00000000000..534df0c6c77
--- /dev/null
+++ b/arch/arm/mach-s3c2410/Kconfig
@@ -0,0 +1,169 @@
+if ARCH_S3C2410
+
+menu "S3C24XX Implementations"
+
+config ARCH_BAST
+	bool "Simtec Electronics BAST (EB2410ITX)"
+	select CPU_S3C2410
+	help
+	  Say Y here if you are using the Simtec Electronics EB2410ITX
+	  development board (also known as BAST)
+
+	  Product page: <http://www.simtec.co.uk/products/EB2410ITX/>.
+
+config ARCH_H1940
+	bool "IPAQ H1940"
+	select CPU_S3C2410
+	help
+	  Say Y here if you are using the HP IPAQ H1940
+
+	  <http://www.handhelds.org/projects/h1940.html>.
+
+config MACH_N30
+	bool "Acer N30"
+	select CPU_S3C2410
+	help
+	  Say Y here if you are using the Acer N30
+
+	  <http://zoo.weinigel.se/n30>.
+
+config ARCH_SMDK2410
+	bool "SMDK2410/A9M2410"
+	select CPU_S3C2410
+	help
+	   Say Y here if you are using the SMDK2410 or the derived module A9M2410
+           <http://www.fsforth.de>
+
+config ARCH_S3C2440
+	bool "SMDK2440"
+	select CPU_S3C2440
+	help
+	  Say Y here if you are using the SMDK2440.
+
+config MACH_VR1000
+	bool "Thorcom VR1000"
+	select CPU_S3C2410
+	help
+	  Say Y here if you are using the Thorcom VR1000 board.
+
+	  This linux port is currently being maintained by Simtec, on behalf
+	  of Thorcom. Any queries, please contact Thorcom first.
+
+config MACH_RX3715
+	bool "HP iPAQ rx3715"
+	select CPU_S3C2440
+	help
+	  Say Y here if you are using the HP iPAQ rx3715.
+
+	  See <http://www.handhelds.org/projects/rx3715.html> for more
+	  information on this project
+
+config MACH_OTOM
+ 	bool "NexVision OTOM Board"
+ 	select CPU_S3C2410
+	help
+ 	  Say Y here if you are using the Nex Vision OTOM board
+
+config MACH_NEXCODER_2440
+ 	bool "NexVision NEXCODER 2440 Light Board"
+ 	select CPU_S3C2440
+	help
+ 	  Say Y here if you are using the Nex Vision NEXCODER 2440 Light Board
+
+endmenu
+
+config CPU_S3C2410
+	bool
+	depends on ARCH_S3C2410
+	help
+	  Support for S3C2410 and S3C2410A family from the S3C24XX line
+	  of Samsung Mobile CPUs.
+
+config CPU_S3C2440
+	bool
+	depends on ARCH_S3C2410
+	help
+	  Support for S3C2440 Samsung Mobile CPU based systems.
+
+comment "S3C2410 Boot"
+
+config S3C2410_BOOT_WATCHDOG
+	bool "S3C2410 Initialisation watchdog"
+	depends on ARCH_S3C2410 && S3C2410_WATCHDOG
+	help
+	  Say y to enable the watchdog during the kernel decompression
+	  stage. If the kernel fails to uncompress, then the watchdog
+	  will trigger a reset and the system should restart.
+
+	  Although this uses the same hardware unit as the kernel watchdog
+	  driver, it is not a replacement for it. If you use this option,
+	  you will have to use the watchdg driver to either stop the timeout
+	  or restart it. If you do not, then your kernel will reboot after
+	  startup.
+
+	  The driver uses a fixed timeout value, so the exact time till the
+	  system resets depends on the value of PCLK. The timeout on an
+	  200MHz s3c2410 should be about 30 seconds.
+
+comment "S3C2410 Setup"
+
+config S3C2410_DMA
+	bool "S3C2410 DMA support"
+	depends on ARCH_S3C2410
+	help
+	  S3C2410 DMA support. This is needed for drivers like sound which
+	  use the S3C2410's DMA system to move data to and from the
+	  peripheral blocks.
+
+config S3C2410_DMA_DEBUG
+	bool "S3C2410 DMA support debug"
+	depends on ARCH_S3C2410 && S3C2410_DMA
+	help
+	  Enable debugging output for the DMA code. This option sends info
+	  to the kernel log, at priority KERN_DEBUG.
+
+	  Note, it is easy to create and fill the log buffer in a small
+	  amount of time, as well as using an significant percentage of
+	  the CPU time doing so.
+
+
+config S3C2410_PM_DEBUG
+	bool "S3C2410 PM Suspend debug"
+	depends on ARCH_S3C2410 && PM
+	help
+	  Say Y here if you want verbose debugging from the PM Suspend and
+	  Resume code. See `Documentation/arm/Samsing-S3C24XX/Suspend.txt`
+	  for more information.
+
+config S3C2410_PM_CHECK
+	bool "S3C2410 PM Suspend Memory CRC"
+	depends on ARCH_S3C2410 && PM && CRC32
+	help
+ 	  Enable the PM code's memory area checksum over sleep. This option
+	  will generate CRCs of all blocks of memory, and store them before
+	  going to sleep. The blocks are then checked on resume for any
+	  errors.
+
+config S3C2410_PM_CHECK_CHUNKSIZE
+	int "S3C2410 PM Suspend CRC Chunksize (KiB)"
+	depends on ARCH_S3C2410 && PM && S3C2410_PM_CHECK
+	default 64
+	help
+	  Set the chunksize in Kilobytes of the CRC for checking memory
+	  corruption over suspend and resume. A smaller value will mean that
+	  the CRC data block will take more memory, but wil identify any
+	  faults with better precision.
+
+config S3C2410_LOWLEVEL_UART_PORT
+	int "S3C2410 UART to use for low-level messages"
+	default 0
+	help
+	  Choice of which UART port to use for the low-level messages,
+	  such as the `Uncompressing...` at start time. The value of
+	  this configuration should be between zero and two. The port
+	  must have been initialised by the boot-loader before use.
+
+	  Note, this does not affect the port used by the debug messages,
+	  which is a separate configuration.
+
+endif
diff --git a/arch/arm/mach-s3c2410/Makefile b/arch/arm/mach-s3c2410/Makefile
new file mode 100644
index 00000000000..7c379aad5d6
--- /dev/null
+++ b/arch/arm/mach-s3c2410/Makefile
@@ -0,0 +1,36 @@
+
+#
+# Makefile for the linux kernel.
+#
+
+# Object file lists.
+
+obj-y			:= cpu.o irq.o time.o gpio.o clock.o devs.o
+obj-m			:=
+obj-n			:=
+obj-			:=
+
+# S3C2410 support files
+
+obj-$(CONFIG_CPU_S3C2410)  += s3c2410.o
+obj-$(CONFIG_S3C2410_DMA)  += dma.o
+
+# Power Management support
+
+obj-$(CONFIG_PM)	   += pm.o sleep.o
+
+# S3C2440 support
+
+obj-$(CONFIG_CPU_S3C2440)  += s3c2440.o s3c2440-dsc.o
+
+# machine specific support
+
+obj-$(CONFIG_ARCH_BAST)		+= mach-bast.o usb-simtec.o
+obj-$(CONFIG_ARCH_H1940)	+= mach-h1940.o
+obj-$(CONFIG_MACH_N30)		+= mach-n30.o
+obj-$(CONFIG_ARCH_SMDK2410)	+= mach-smdk2410.o
+obj-$(CONFIG_ARCH_S3C2440)	+= mach-smdk2440.o
+obj-$(CONFIG_MACH_VR1000)	+= mach-vr1000.o usb-simtec.o
+obj-$(CONFIG_MACH_RX3715)	+= mach-rx3715.o
+obj-$(CONFIG_MACH_OTOM)		+= mach-otom.o
+obj-$(CONFIG_MACH_NEXCODER_2440) += mach-nexcoder.o
diff --git a/arch/arm/mach-s3c2410/Makefile.boot b/arch/arm/mach-s3c2410/Makefile.boot
new file mode 100644
index 00000000000..7dab2a0325b
--- /dev/null
+++ b/arch/arm/mach-s3c2410/Makefile.boot
@@ -0,0 +1,3 @@
+   zreladdr-y	:= 0x30008000
+params_phys-y	:= 0x30000100
+
diff --git a/arch/arm/mach-s3c2410/bast-irq.c b/arch/arm/mach-s3c2410/bast-irq.c
new file mode 100644
index 00000000000..5e5bbe893cb
--- /dev/null
+++ b/arch/arm/mach-s3c2410/bast-irq.c
@@ -0,0 +1,132 @@
+/* linux/arch/arm/mach-s3c2410/bast-irq.c
+ *
+ * Copyright (c) 2004 Simtec Electronics
+ *   Ben Dooks <ben@simtec.co.uk>
+ *
+ * http://www.simtec.co.uk/products/EB2410ITX/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Modifications:
+ *     08-Jan-2003 BJD  Moved from central IRQ code
+ */
+
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/ptrace.h>
+#include <linux/sysdev.h>
+
+#include <asm/hardware.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+
+#include <asm/mach/irq.h>
+#include <asm/hardware/s3c2410/irq.h>
+
+#if 0
+#include <asm/debug-ll.h>
+#endif
+
+#define irqdbf(x...)
+#define irqdbf2(x...)
+
+
+/* handle PC104 ISA interrupts from the system CPLD */
+
+/* table of ISA irq nos to the relevant mask... zero means
+ * the irq is not implemented
+*/
+static unsigned char bast_pc104_irqmasks[] = {
+	0,   /* 0 */
+	0,   /* 1 */
+	0,   /* 2 */
+	1,   /* 3 */
+	0,   /* 4 */
+	2,   /* 5 */
+	0,   /* 6 */
+	4,   /* 7 */
+	0,   /* 8 */
+	0,   /* 9 */
+	8,   /* 10 */
+	0,   /* 11 */
+	0,   /* 12 */
+	0,   /* 13 */
+	0,   /* 14 */
+	0,   /* 15 */
+};
+
+static unsigned char bast_pc104_irqs[] = { 3, 5, 7, 10 };
+
+static void
+bast_pc104_mask(unsigned int irqno)
+{
+	unsigned long temp;
+
+	temp = __raw_readb(BAST_VA_PC104_IRQMASK);
+	temp &= ~bast_pc104_irqmasks[irqno];
+	__raw_writeb(temp, BAST_VA_PC104_IRQMASK);
+
+	if (temp == 0)
+		bast_extint_mask(IRQ_ISA);
+}
+
+static void
+bast_pc104_ack(unsigned int irqno)
+{
+	bast_extint_ack(IRQ_ISA);
+}
+
+static void
+bast_pc104_unmask(unsigned int irqno)
+{
+	unsigned long temp;
+
+	temp = __raw_readb(BAST_VA_PC104_IRQMASK);
+	temp |= bast_pc104_irqmasks[irqno];
+	__raw_writeb(temp, BAST_VA_PC104_IRQMASK);
+
+	bast_extint_unmask(IRQ_ISA);
+}
+
+static struct bast_pc104_chip = {
+	.mask	     = bast_pc104_mask,
+	.unmask	     = bast_pc104_unmask,
+	.ack	     = bast_pc104_ack
+};
+
+static void
+bast_irq_pc104_demux(unsigned int irq,
+		     struct irqdesc *desc,
+		     struct pt_regs *regs)
+{
+	unsigned int stat;
+	unsigned int irqno;
+	int i;
+
+	stat = __raw_readb(BAST_VA_PC104_IRQREQ) & 0xf;
+
+	for (i = 0; i < 4 && stat != 0; i++) {
+		if (stat & 1) {
+			irqno = bast_pc104_irqs[i];
+			desc = irq_desc + irqno;
+
+			desc->handle(irqno, desc, regs);
+		}
+
+		stat >>= 1;
+	}
+}
diff --git a/arch/arm/mach-s3c2410/bast.h b/arch/arm/mach-s3c2410/bast.h
new file mode 100644
index 00000000000..e5d03311752
--- /dev/null
+++ b/arch/arm/mach-s3c2410/bast.h
@@ -0,0 +1,2 @@
+
+extern void bast_init_irq(void);
diff --git a/arch/arm/mach-s3c2410/clock.c b/arch/arm/mach-s3c2410/clock.c
new file mode 100644
index 00000000000..e23f534d4e1
--- /dev/null
+++ b/arch/arm/mach-s3c2410/clock.c
@@ -0,0 +1,507 @@
+/* linux/arch/arm/mach-s3c2410/clock.c
+ *
+ * Copyright (c) 2004-2005 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2410 Clock control support
+ *
+ * Based on, and code from linux/arch/arm/mach-versatile/clock.c
+ **
+ **  Copyright (C) 2004 ARM Limited.
+ **  Written by Deep Blue Solutions Limited.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/sysdev.h>
+
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+
+#include <asm/hardware.h>
+#include <asm/atomic.h>
+#include <asm/irq.h>
+#include <asm/io.h>
+
+#include <asm/hardware/clock.h>
+#include <asm/arch/regs-clock.h>
+
+#include "clock.h"
+#include "cpu.h"
+
+/* clock information */
+
+static LIST_HEAD(clocks);
+static DECLARE_MUTEX(clocks_sem);
+
+/* old functions */
+
+void inline s3c24xx_clk_enable(unsigned int clocks, unsigned int enable)
+{
+	unsigned long clkcon;
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	clkcon = __raw_readl(S3C2410_CLKCON);
+	clkcon &= ~clocks;
+
+	if (enable)
+		clkcon |= clocks;
+
+	/* ensure none of the special function bits set */
+	clkcon &= ~(S3C2410_CLKCON_IDLE|S3C2410_CLKCON_POWER);
+
+	__raw_writel(clkcon, S3C2410_CLKCON);
+
+	local_irq_restore(flags);
+}
+
+/* enable and disable calls for use with the clk struct */
+
+static int clk_null_enable(struct clk *clk, int enable)
+{
+	return 0;
+}
+
+int s3c24xx_clkcon_enable(struct clk *clk, int enable)
+{
+	s3c24xx_clk_enable(clk->ctrlbit, enable);
+	return 0;
+}
+
+/* Clock API calls */
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+	struct clk *p;
+	struct clk *clk = ERR_PTR(-ENOENT);
+	int idno;
+
+	idno = (dev == NULL) ? -1 : to_platform_device(dev)->id;
+
+	down(&clocks_sem);
+
+	list_for_each_entry(p, &clocks, list) {
+		if (p->id == idno &&
+		    strcmp(id, p->name) == 0 &&
+		    try_module_get(p->owner)) {
+			clk = p;
+			break;
+		}
+	}
+
+	/* check for the case where a device was supplied, but the
+	 * clock that was being searched for is not device specific */
+
+	if (IS_ERR(clk)) {
+		list_for_each_entry(p, &clocks, list) {
+			if (p->id == -1 && strcmp(id, p->name) == 0 &&
+			    try_module_get(p->owner)) {
+				clk = p;
+				break;
+			}
+		}
+	}
+
+	up(&clocks_sem);
+	return clk;
+}
+
+void clk_put(struct clk *clk)
+{
+	module_put(clk->owner);
+}
+
+int clk_enable(struct clk *clk)
+{
+	if (IS_ERR(clk))
+		return -EINVAL;
+
+	return (clk->enable)(clk, 1);
+}
+
+void clk_disable(struct clk *clk)
+{
+	if (!IS_ERR(clk))
+		(clk->enable)(clk, 0);
+}
+
+
+int clk_use(struct clk *clk)
+{
+	atomic_inc(&clk->used);
+	return 0;
+}
+
+
+void clk_unuse(struct clk *clk)
+{
+	atomic_dec(&clk->used);
+}
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+	if (IS_ERR(clk))
+		return 0;
+
+	if (clk->rate != 0)
+		return clk->rate;
+
+	while (clk->parent != NULL && clk->rate == 0)
+		clk = clk->parent;
+
+	return clk->rate;
+}
+
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+	return rate;
+}
+
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+	return -EINVAL;
+}
+
+struct clk *clk_get_parent(struct clk *clk)
+{
+	return clk->parent;
+}
+
+EXPORT_SYMBOL(clk_get);
+EXPORT_SYMBOL(clk_put);
+EXPORT_SYMBOL(clk_enable);
+EXPORT_SYMBOL(clk_disable);
+EXPORT_SYMBOL(clk_use);
+EXPORT_SYMBOL(clk_unuse);
+EXPORT_SYMBOL(clk_get_rate);
+EXPORT_SYMBOL(clk_round_rate);
+EXPORT_SYMBOL(clk_set_rate);
+EXPORT_SYMBOL(clk_get_parent);
+
+/* base clocks */
+
+static struct clk clk_xtal = {
+	.name		= "xtal",
+	.id		= -1,
+	.rate		= 0,
+	.parent		= NULL,
+	.ctrlbit	= 0,
+};
+
+static struct clk clk_f = {
+	.name		= "fclk",
+	.id		= -1,
+	.rate		= 0,
+	.parent		= NULL,
+	.ctrlbit	= 0,
+};
+
+static struct clk clk_h = {
+	.name		= "hclk",
+	.id		= -1,
+	.rate		= 0,
+	.parent		= NULL,
+	.ctrlbit	= 0,
+};
+
+static struct clk clk_p = {
+	.name		= "pclk",
+	.id		= -1,
+	.rate		= 0,
+	.parent		= NULL,
+	.ctrlbit	= 0,
+};
+
+/* clocks that could be registered by external code */
+
+struct clk s3c24xx_dclk0 = {
+	.name		= "dclk0",
+	.id		= -1,
+};
+
+struct clk s3c24xx_dclk1 = {
+	.name		= "dclk1",
+	.id		= -1,
+};
+
+struct clk s3c24xx_clkout0 = {
+	.name		= "clkout0",
+	.id		= -1,
+};
+
+struct clk s3c24xx_clkout1 = {
+	.name		= "clkout1",
+	.id		= -1,
+};
+
+struct clk s3c24xx_uclk = {
+	.name		= "uclk",
+	.id		= -1,
+};
+
+
+/* clock definitions */
+
+static struct clk init_clocks[] = {
+	{ .name    = "nand",
+	  .id	   = -1,
+	  .parent  = &clk_h,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_NAND
+	},
+	{ .name    = "lcd",
+	  .id	   = -1,
+	  .parent  = &clk_h,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_LCDC
+	},
+	{ .name    = "usb-host",
+	  .id	   = -1,
+	  .parent  = &clk_h,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_USBH
+	},
+	{ .name    = "usb-device",
+	  .id	   = -1,
+	  .parent  = &clk_h,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_USBD
+	},
+	{ .name    = "timers",
+	  .id	   = -1,
+	  .parent  = &clk_p,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_PWMT
+	},
+	{ .name    = "sdi",
+	  .id	   = -1,
+	  .parent  = &clk_p,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_SDI
+	},
+	{ .name    = "uart",
+	  .id	   = 0,
+	  .parent  = &clk_p,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_UART0
+	},
+	{ .name    = "uart",
+	  .id	   = 1,
+	  .parent  = &clk_p,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_UART1
+	},
+	{ .name    = "uart",
+	  .id	   = 2,
+	  .parent  = &clk_p,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_UART2
+	},
+	{ .name    = "gpio",
+	  .id	   = -1,
+	  .parent  = &clk_p,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_GPIO
+	},
+	{ .name    = "rtc",
+	  .id	   = -1,
+	  .parent  = &clk_p,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_RTC
+	},
+	{ .name    = "adc",
+	  .id	   = -1,
+	  .parent  = &clk_p,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_ADC
+	},
+	{ .name    = "i2c",
+	  .id	   = -1,
+	  .parent  = &clk_p,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_IIC
+	},
+	{ .name    = "iis",
+	  .id	   = -1,
+	  .parent  = &clk_p,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_IIS
+	},
+	{ .name    = "spi",
+	  .id	   = -1,
+	  .parent  = &clk_p,
+	  .enable  = s3c24xx_clkcon_enable,
+	  .ctrlbit = S3C2410_CLKCON_SPI
+	},
+	{ .name    = "watchdog",
+	  .id	   = -1,
+	  .parent  = &clk_p,
+	  .ctrlbit = 0
+	}
+};
+
+/* initialise the clock system */
+
+int s3c24xx_register_clock(struct clk *clk)
+{
+	clk->owner = THIS_MODULE;
+	atomic_set(&clk->used, 0);
+
+	if (clk->enable == NULL)
+		clk->enable = clk_null_enable;
+
+	/* add to the list of available clocks */
+
+	down(&clocks_sem);
+	list_add(&clk->list, &clocks);
+	up(&clocks_sem);
+
+	return 0;
+}
+
+/* initalise all the clocks */
+
+int __init s3c24xx_setup_clocks(unsigned long xtal,
+				unsigned long fclk,
+				unsigned long hclk,
+				unsigned long pclk)
+{
+	struct clk *clkp = init_clocks;
+	int ptr;
+	int ret;
+
+	printk(KERN_INFO "S3C2410 Clocks, (c) 2004 Simtec Electronics\n");
+
+	/* initialise the main system clocks */
+
+	clk_xtal.rate = xtal;
+
+	clk_h.rate = hclk;
+	clk_p.rate = pclk;
+	clk_f.rate = fclk;
+
+	/* it looks like just setting the register here is not good
+	 * enough, and causes the odd hang at initial boot time, so
+	 * do all of them indivdually.
+	 *
+	 * I think disabling the LCD clock if the LCD is active is
+	 * very dangerous, and therefore the bootloader should be
+	 * careful to not enable the LCD clock if it is not needed.
+	 *
+	 * and of course, this looks neater
+	 */
+
+	s3c24xx_clk_enable(S3C2410_CLKCON_NAND, 0);
+	s3c24xx_clk_enable(S3C2410_CLKCON_USBH, 0);
+	s3c24xx_clk_enable(S3C2410_CLKCON_USBD, 0);
+	s3c24xx_clk_enable(S3C2410_CLKCON_ADC, 0);
+	s3c24xx_clk_enable(S3C2410_CLKCON_IIC, 0);
+	s3c24xx_clk_enable(S3C2410_CLKCON_SPI, 0);
+
+	/* assume uart clocks are correctly setup */
+
+	/* register our clocks */
+
+	if (s3c24xx_register_clock(&clk_xtal) < 0)
+		printk(KERN_ERR "failed to register master xtal\n");
+
+	if (s3c24xx_register_clock(&clk_f) < 0)
+		printk(KERN_ERR "failed to register cpu fclk\n");
+
+	if (s3c24xx_register_clock(&clk_h) < 0)
+		printk(KERN_ERR "failed to register cpu hclk\n");
+
+	if (s3c24xx_register_clock(&clk_p) < 0)
+		printk(KERN_ERR "failed to register cpu pclk\n");
+
+	/* register clocks from clock array */
+
+	for (ptr = 0; ptr < ARRAY_SIZE(init_clocks); ptr++, clkp++) {
+		ret = s3c24xx_register_clock(clkp);
+		if (ret < 0) {
+			printk(KERN_ERR "Failed to register clock %s (%d)\n",
+			       clkp->name, ret);
+		}
+	}
+
+	return 0;
+}
+
+/* S3C2440 extended clock support */
+
+#ifdef CONFIG_CPU_S3C2440
+
+static struct clk s3c2440_clk_upll = {
+	.name		= "upll",
+	.id		= -1,
+};
+
+static struct clk s3c2440_clk_cam = {
+	.name		= "camif",
+	.parent		= &clk_h,
+	.id		= -1,
+	.enable		= s3c24xx_clkcon_enable,
+	.ctrlbit	= S3C2440_CLKCON_CAMERA,
+};
+
+static struct clk s3c2440_clk_ac97 = {
+	.name		= "ac97",
+	.parent		= &clk_p,
+	.id		= -1,
+	.enable		= s3c24xx_clkcon_enable,
+	.ctrlbit	= S3C2440_CLKCON_CAMERA,
+};
+
+static int s3c2440_clk_add(struct sys_device *sysdev)
+{
+	unsigned long upllcon = __raw_readl(S3C2410_UPLLCON);
+
+	s3c2440_clk_upll.rate = s3c2410_get_pll(upllcon, clk_xtal.rate) * 2;
+
+	printk("S3C2440: Clock Support, UPLL %ld.%03ld MHz\n",
+	       print_mhz(s3c2440_clk_upll.rate));
+
+	s3c24xx_register_clock(&s3c2440_clk_ac97);
+	s3c24xx_register_clock(&s3c2440_clk_cam);
+	s3c24xx_register_clock(&s3c2440_clk_upll);
+
+	clk_disable(&s3c2440_clk_ac97);
+	clk_disable(&s3c2440_clk_cam);
+
+	return 0;
+}
+
+static struct sysdev_driver s3c2440_clk_driver = {
+	.add	= s3c2440_clk_add,
+};
+
+static int s3c24xx_clk_driver(void)
+{
+	return sysdev_driver_register(&s3c2440_sysclass, &s3c2440_clk_driver);
+}
+
+arch_initcall(s3c24xx_clk_driver);
+
+#endif /* CONFIG_CPU_S3C2440 */
diff --git a/arch/arm/mach-s3c2410/clock.h b/arch/arm/mach-s3c2410/clock.h
new file mode 100644
index 00000000000..7953b6f397b
--- /dev/null
+++ b/arch/arm/mach-s3c2410/clock.h
@@ -0,0 +1,44 @@
+/*
+ * linux/arch/arm/mach-s3c2410/clock.h
+ *
+ * Copyright (c) 2004-2005 Simtec Electronics
+ *	http://www.simtec.co.uk/products/SWLINUX/
+ *	Written by Ben Dooks, <ben@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.
+*/
+
+struct clk {
+	struct list_head      list;
+	struct module        *owner;
+	struct clk           *parent;
+	const char           *name;
+	int		      id;
+	atomic_t              used;
+	unsigned long         rate;
+	unsigned long         ctrlbit;
+	int		    (*enable)(struct clk *, int enable);
+};
+
+/* other clocks which may be registered by board support */
+
+extern struct clk s3c24xx_dclk0;
+extern struct clk s3c24xx_dclk1;
+extern struct clk s3c24xx_clkout0;
+extern struct clk s3c24xx_clkout1;
+extern struct clk s3c24xx_uclk;
+
+/* exports for arch/arm/mach-s3c2410
+ *
+ * Please DO NOT use these outside of arch/arm/mach-s3c2410
+*/
+
+extern int s3c24xx_clkcon_enable(struct clk *clk, int enable);
+extern int s3c24xx_register_clock(struct clk *clk);
+
+extern int s3c24xx_setup_clocks(unsigned long xtal,
+				unsigned long fclk,
+				unsigned long hclk,
+				unsigned long pclk);
diff --git a/arch/arm/mach-s3c2410/cpu.c b/arch/arm/mach-s3c2410/cpu.c
new file mode 100644
index 00000000000..ca366e9e264
--- /dev/null
+++ b/arch/arm/mach-s3c2410/cpu.c
@@ -0,0 +1,241 @@