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!

43 files changed, 4856 insertions, 0 deletions

diff --git a/include/asm-arm/arch-s3c2410/bast-cpld.h b/include/asm-arm/arch-s3c2410/bast-cpld.h
new file mode 100644
index 00000000000..e28ca51a497
--- /dev/null
+++ b/include/asm-arm/arch-s3c2410/bast-cpld.h
@@ -0,0 +1,58 @@
+/* linux/include/asm-arm/arch-s3c2410/bast-cpld.h
+ *
+ * (c) 2003,2004 Simtec Electronics
+ *  Ben Dooks <ben@simtec.co.uk>
+ *
+ * BAST - CPLD control constants
+ *
+ * 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.
+ *
+ * Changelog:
+ *  25-May-2003 BJD  Created file, added CTRL1 registers
+ *  30-Aug-2004 BJD  Updated definitions from 2.4.26 port
+ *  30-Aug-2004 BJD  Added CTRL3 and CTRL4 definitions
+*/
+
+#ifndef __ASM_ARCH_BASTCPLD_H
+#define __ASM_ARCH_BASTCPLD_H
+
+/* CTRL1 - Audio LR routing */
+
+#define BAST_CPLD_CTRL1_LRCOFF	    (0x00)
+#define BAST_CPLD_CTRL1_LRCADC	    (0x01)
+#define BAST_CPLD_CTRL1_LRCDAC	    (0x02)
+#define BAST_CPLD_CTRL1_LRCARM	    (0x03)
+#define BAST_CPLD_CTRL1_LRMASK	    (0x03)
+
+/* CTRL2 - NAND WP control, IDE Reset assert/check */
+
+#define BAST_CPLD_CTRL2_WNAND       (0x04)
+#define BAST_CPLD_CTLR2_IDERST      (0x08)
+
+/* CTRL3 - rom write control, CPLD identity */
+
+#define BAST_CPLD_CTRL3_IDMASK      (0x0e)
+#define BAST_CPLD_CTRL3_ROMWEN      (0x01)
+
+/* CTRL4 - 8bit LCD interface control/status */
+
+#define BAST_CPLD_CTRL4_LLAT	    (0x01)
+#define BAST_CPLD_CTRL4_LCDRW	    (0x02)
+#define BAST_CPLD_CTRL4_LCDCMD	    (0x04)
+#define BAST_CPLD_CTRL4_LCDE2	    (0x01)
+
+/* CTRL5 - DMA routing */
+
+#define BAST_CPLD_DMA0_PRIIDE      (0<<0)
+#define BAST_CPLD_DMA0_SECIDE      (1<<0)
+#define BAST_CPLD_DMA0_ISA15       (2<<0)
+#define BAST_CPLD_DMA0_ISA36       (3<<0)
+
+#define BAST_CPLD_DMA1_PRIIDE      (0<<2)
+#define BAST_CPLD_DMA1_SECIDE      (1<<2)
+#define BAST_CPLD_DMA1_ISA15       (2<<2)
+#define BAST_CPLD_DMA1_ISA36       (3<<2)
+
+#endif /* __ASM_ARCH_BASTCPLD_H */
diff --git a/include/asm-arm/arch-s3c2410/bast-irq.h b/include/asm-arm/arch-s3c2410/bast-irq.h
new file mode 100644
index 00000000000..b79b47f0d12
--- /dev/null
+++ b/include/asm-arm/arch-s3c2410/bast-irq.h
@@ -0,0 +1,33 @@
+/* linux/include/asm-arm/arch-s3c2410/bast-irq.h
+ *
+ * (c) 2003,2004 Simtec Electronics
+ *  Ben Dooks <ben@simtec.co.uk>
+ *
+ * Machine BAST - IRQ Number definitions
+ *
+ * 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.
+ *
+ * Changelog:
+ *  14-Sep-2004 BJD  Fixed IRQ_USBOC definition
+ *  06-Jan-2003 BJD  Linux 2.6.0 version
+ */
+
+#ifndef __ASM_ARCH_BASTIRQ_H
+#define __ASM_ARCH_BASTIRQ_H
+
+/* irq numbers to onboard peripherals */
+
+#define IRQ_USBOC      IRQ_EINT18
+#define IRQ_IDE0       IRQ_EINT16
+#define IRQ_IDE1       IRQ_EINT17
+#define IRQ_PCSERIAL1  IRQ_EINT15
+#define IRQ_PCSERIAL2  IRQ_EINT14
+#define IRQ_PCPARALLEL IRQ_EINT13
+#define IRQ_ASIX       IRQ_EINT11
+#define IRQ_DM9000     IRQ_EINT10
+#define IRQ_ISA	       IRQ_EINT9
+#define IRQ_SMALERT    IRQ_EINT8
+
+#endif /* __ASM_ARCH_BASTIRQ_H */
diff --git a/include/asm-arm/arch-s3c2410/bast-map.h b/include/asm-arm/arch-s3c2410/bast-map.h
new file mode 100644
index 00000000000..29c07e302b0
--- /dev/null
+++ b/include/asm-arm/arch-s3c2410/bast-map.h
@@ -0,0 +1,150 @@
+/* linux/include/asm-arm/arch-s3c2410/bast-map.h
+ *
+ * (c) 2003,2004 Simtec Electronics
+ *  Ben Dooks <ben@simtec.co.uk>
+ *
+ * Machine BAST - Memory map definitions
+ *
+ * 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.
+ *
+ * Changelog:
+ *  06-Jan-2003 BJD  Linux 2.6.0 version, moved bast specifics from arch/map.h
+ *  12-Mar-2004 BJD  Fixed header include protection
+*/
+
+/* needs arch/map.h including with this */
+
+/* ok, we've used up to 0x13000000, now we need to find space for the
+ * peripherals that live in the nGCS[x] areas, which are quite numerous
+ * in their space. We also have the board's CPLD to find register space
+ * for.
+ */
+
+#ifndef __ASM_ARCH_BASTMAP_H
+#define __ASM_ARCH_BASTMAP_H
+
+#define BAST_IOADDR(x)	   (S3C2410_ADDR((x) + 0x01300000))
+
+/* we put the CPLD registers next, to get them out of the way */
+
+#define BAST_VA_CTRL1	    BAST_IOADDR(0x00000000)	 /* 0x01300000 */
+#define BAST_PA_CTRL1	    (S3C2410_CS5 | 0x7800000)
+
+#define BAST_VA_CTRL2	    BAST_IOADDR(0x00100000)	 /* 0x01400000 */
+#define BAST_PA_CTRL2	    (S3C2410_CS1 | 0x6000000)
+
+#define BAST_VA_CTRL3	    BAST_IOADDR(0x00200000)	 /* 0x01500000 */
+#define BAST_PA_CTRL3	    (S3C2410_CS1 | 0x6800000)
+
+#define BAST_VA_CTRL4	    BAST_IOADDR(0x00300000)	 /* 0x01600000 */
+#define BAST_PA_CTRL4	    (S3C2410_CS1 | 0x7000000)
+
+/* next, we have the PC104 ISA interrupt registers */
+
+#define BAST_PA_PC104_IRQREQ  (S3C2410_CS5 | 0x6000000) /* 0x01700000 */
+#define BAST_VA_PC104_IRQREQ  BAST_IOADDR(0x00400000)
+
+#define BAST_PA_PC104_IRQRAW  (S3C2410_CS5 | 0x6800000) /* 0x01800000 */
+#define BAST_VA_PC104_IRQRAW  BAST_IOADDR(0x00500000)
+
+#define BAST_PA_PC104_IRQMASK (S3C2410_CS5 | 0x7000000) /* 0x01900000 */
+#define BAST_VA_PC104_IRQMASK BAST_IOADDR(0x00600000)
+
+#define BAST_PA_LCD_RCMD1     (0x8800000)
+#define BAST_VA_LCD_RCMD1     BAST_IOADDR(0x00700000)
+
+#define BAST_PA_LCD_WCMD1     (0x8000000)
+#define BAST_VA_LCD_WCMD1     BAST_IOADDR(0x00800000)
+
+#define BAST_PA_LCD_RDATA1    (0x9800000)
+#define BAST_VA_LCD_RDATA1    BAST_IOADDR(0x00900000)
+
+#define BAST_PA_LCD_WDATA1    (0x9000000)
+#define BAST_VA_LCD_WDATA1    BAST_IOADDR(0x00A00000)
+
+#define BAST_PA_LCD_RCMD2     (0xA800000)
+#define BAST_VA_LCD_RCMD2     BAST_IOADDR(0x00B00000)
+
+#define BAST_PA_LCD_WCMD2     (0xA000000)
+#define BAST_VA_LCD_WCMD2     BAST_IOADDR(0x00C00000)
+
+#define BAST_PA_LCD_RDATA2    (0xB800000)
+#define BAST_VA_LCD_RDATA2    BAST_IOADDR(0x00D00000)
+
+#define BAST_PA_LCD_WDATA2    (0xB000000)
+#define BAST_VA_LCD_WDATA2    BAST_IOADDR(0x00E00000)
+
+
+/* 0xE0000000 contains the IO space that is split by speed and
+ * wether the access is for 8 or 16bit IO... this ensures that
+ * the correct access is made
+ *
+ * 0x10000000 of space, partitioned as so:
+ *
+ * 0x00000000 to 0x04000000  8bit,  slow
+ * 0x04000000 to 0x08000000  16bit, slow
+ * 0x08000000 to 0x0C000000  16bit, net
+ * 0x0C000000 to 0x10000000  16bit, fast
+ *
+ * each of these spaces has the following in:
+ *
+ * 0x00000000 to 0x01000000 16MB ISA IO space
+ * 0x01000000 to 0x02000000 16MB ISA memory space
+ * 0x02000000 to 0x02100000 1MB  IDE primary channel
+ * 0x02100000 to 0x02200000 1MB  IDE primary channel aux
+ * 0x02200000 to 0x02400000 1MB  IDE secondary channel
+ * 0x02300000 to 0x02400000 1MB  IDE secondary channel aux
+ * 0x02400000 to 0x02500000 1MB  ASIX ethernet controller
+ * 0x02500000 to 0x02600000 1MB  Davicom DM9000 ethernet controller
+ * 0x02600000 to 0x02700000 1MB  PC SuperIO controller
+ *
+ * the phyiscal layout of the zones are:
+ *  nGCS2 - 8bit, slow
+ *  nGCS3 - 16bit, slow
+ *  nGCS4 - 16bit, net
+ *  nGCS5 - 16bit, fast
+ */
+
+#define BAST_VA_MULTISPACE (0xE0000000)
+
+#define BAST_VA_ISAIO	   (BAST_VA_MULTISPACE + 0x00000000)
+#define BAST_VA_ISAMEM	   (BAST_VA_MULTISPACE + 0x01000000)
+#define BAST_VA_IDEPRI	   (BAST_VA_MULTISPACE + 0x02000000)
+#define BAST_VA_IDEPRIAUX  (BAST_VA_MULTISPACE + 0x02100000)
+#define BAST_VA_IDESEC	   (BAST_VA_MULTISPACE + 0x02200000)
+#define BAST_VA_IDESECAUX  (BAST_VA_MULTISPACE + 0x02300000)
+#define BAST_VA_ASIXNET	   (BAST_VA_MULTISPACE + 0x02400000)
+#define BAST_VA_DM9000	   (BAST_VA_MULTISPACE + 0x02500000)
+#define BAST_VA_SUPERIO	   (BAST_VA_MULTISPACE + 0x02600000)
+
+#define BAST_VA_MULTISPACE (0xE0000000)
+
+#define BAST_VAM_CS2 (0x00000000)
+#define BAST_VAM_CS3 (0x04000000)
+#define BAST_VAM_CS4 (0x08000000)
+#define BAST_VAM_CS5 (0x0C000000)
+
+/* physical offset addresses for the peripherals */
+
+#define BAST_PA_ISAIO	  (0x00000000)
+#define BAST_PA_ASIXNET	  (0x01000000)
+#define BAST_PA_SUPERIO	  (0x01800000)
+#define BAST_PA_IDEPRI	  (0x02000000)
+#define BAST_PA_IDEPRIAUX (0x02800000)
+#define BAST_PA_IDESEC	  (0x03000000)
+#define BAST_PA_IDESECAUX (0x03800000)
+#define BAST_PA_ISAMEM	  (0x04000000)
+#define BAST_PA_DM9000	  (0x05000000)
+
+/* some configurations for the peripherals */
+
+#define BAST_PCSIO (BAST_VA_SUPERIO + BAST_VAM_CS2)
+/*  */
+
+#define BAST_ASIXNET_CS  BAST_VAM_CS5
+#define BAST_IDE_CS	 BAST_VAM_CS5
+#define BAST_DM9000_CS	 BAST_VAM_CS4
+
+#endif /* __ASM_ARCH_BASTMAP_H */
diff --git a/include/asm-arm/arch-s3c2410/bast-pmu.h b/include/asm-arm/arch-s3c2410/bast-pmu.h
new file mode 100644
index 00000000000..758c5c59d4b
--- /dev/null
+++ b/include/asm-arm/arch-s3c2410/bast-pmu.h
@@ -0,0 +1,43 @@
+/* linux/include/asm-arm/arch-s3c2410/bast-pmu.h
+ *
+ * (c) 2003,2004 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *	Vincent Sanders <vince@simtec.co.uk>
+ *
+ * Machine BAST - Power Management chip
+ *
+ * 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.
+ *
+ * Changelog:
+ *	08-Oct-2003	BJD	Initial creation
+*/
+
+#ifndef __ASM_ARCH_BASTPMU_H
+#define __ASM_ARCH_BASTPMU_H "08_OCT_2004"
+
+#define BASTPMU_REG_IDENT	(0x00)
+#define BASTPMU_REG_VERSION	(0x01)
+#define BASTPMU_REG_DDCCTRL	(0x02)
+#define BASTPMU_REG_POWER	(0x03)
+#define BASTPMU_REG_RESET	(0x04)
+#define BASTPMU_REG_GWO		(0x05)
+#define BASTPMU_REG_WOL		(0x06)
+#define BASTPMU_REG_WOR		(0x07)
+#define BASTPMU_REG_UID		(0x09)
+
+#define BASTPMU_EEPROM		(0xC0)
+
+#define BASTPMU_EEP_UID		(BASTPMU_EEPROM + 0)
+#define BASTPMU_EEP_WOL		(BASTPMU_EEPROM + 8)
+#define BASTPMU_EEP_WOR		(BASTPMU_EEPROM + 9)
+
+#define BASTPMU_IDENT_0		0x53
+#define BASTPMU_IDENT_1		0x42
+#define BASTPMU_IDENT_2		0x50
+#define BASTPMU_IDENT_3		0x4d
+
+#define BASTPMU_RESET_GUARD	(0x55)
+
+#endif /* __ASM_ARCH_BASTPMU_H */
diff --git a/include/asm-arm/arch-s3c2410/debug-macro.S b/include/asm-arm/arch-s3c2410/debug-macro.S
new file mode 100644
index 00000000000..abfbe45cd17
--- /dev/null
+++ b/include/asm-arm/arch-s3c2410/debug-macro.S
@@ -0,0 +1,99 @@
+/* linux/include/asm-arm/arch-s3c2410/debug-macro.S
+ *
+ * Debugging macro include header
+ *
+ *  Copyright (C) 1994-1999 Russell King
+ *  Copyright (C) 2005 Simtec Electronics
+ *
+ *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
+ *
+ * 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.
+ *
+ * Modifications:
+ *     10-Mar-2005 LCVR  Changed S3C2410_VA to S3C24XX_VA
+*/
+
+#include <asm/arch/map.h>
+#include <asm/arch/regs-serial.h>
+#include <asm/arch/regs-gpio.h>
+
+#define S3C2410_UART1_OFF (0x4000)
+#define SHIFT_2440TXF (14-9)
+
+		.macro addruart, rx
+		mrc	p15, 0, \rx, c1, c0
+		tst	\rx, #1
+		ldreq	\rx, = S3C2410_PA_UART
+		ldrne	\rx, = S3C24XX_VA_UART
+#if CONFIG_DEBUG_S3C2410_UART != 0
+		add	\rx, \rx, #(S3C2410_UART1_OFF * CONFIG_DEBUG_S3C2410_UART)
+#endif
+		.endm
+
+		.macro	senduart,rd,rx
+		str	\rd, [\rx, # S3C2410_UTXH ]
+		.endm
+
+		.macro	busyuart, rd, rx
+		ldr	\rd, [ \rx, # S3C2410_UFCON ]
+		tst	\rd, #S3C2410_UFCON_FIFOMODE	@ fifo enabled?
+		beq	1001f				@
+		@ FIFO enabled...
+1003:
+		mrc	p15, 0, \rd, c1, c0
+		tst	\rd, #1
+		addeq	\rd, \rx, #(S3C2410_PA_GPIO - S3C2410_PA_UART)
+		addne	\rd, \rx, #(S3C24XX_VA_GPIO - S3C24XX_VA_UART)
+		bic	\rd, \rd, #0xff000
+		ldr	\rd, [ \rd, # S3C2410_GSTATUS1 - S3C2410_GPIOREG(0) ]
+		and	\rd, \rd, #0x00ff0000
+		teq	\rd, #0x00440000		@ is it 2440?
+
+		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		moveq	\rd, \rd, lsr #SHIFT_2440TXF
+		tst	\rd, #S3C2410_UFSTAT_TXFULL
+		bne	1003b
+		b	1002f
+
+1001:
+		@ busy waiting for non fifo
+		ldr	\rd, [ \rx, # S3C2410_UTRSTAT ]
+		tst	\rd, #S3C2410_UTRSTAT_TXFE
+		beq	1001b
+
+1002:		@ exit busyuart
+		.endm
+
+		.macro	waituart,rd,rx
+
+		ldr	\rd, [ \rx, # S3C2410_UFCON ]
+		tst	\rd, #S3C2410_UFCON_FIFOMODE	@ fifo enabled?
+		beq	1001f				@
+		@ FIFO enabled...
+1003:
+		mrc	p15, 0, \rd, c1, c0
+		tst	\rd, #1
+		addeq	\rd, \rx, #(S3C2410_PA_GPIO - S3C2410_PA_UART)
+		addne	\rd, \rx, #(S3C24XX_VA_GPIO - S3C24XX_VA_UART)
+		bic	\rd, \rd, #0xff000
+		ldr	\rd, [ \rd, # S3C2410_GSTATUS1 - S3C2410_GPIOREG(0) ]
+		and	\rd, \rd, #0x00ff0000
+		teq	\rd, #0x00440000		@ is it 2440?
+
+		ldr	\rd, [ \rx, # S3C2410_UFSTAT ]
+		andne	\rd, \rd, #S3C2410_UFSTAT_TXMASK
+		andeq	\rd, \rd, #S3C2440_UFSTAT_TXMASK
+		teq	\rd, #0
+		bne	1003b
+		b	1002f
+
+1001:
+		@ idle waiting for non fifo
+		ldr	\rd, [ \rx, # S3C2410_UTRSTAT ]
+		tst	\rd, #S3C2410_UTRSTAT_TXFE
+		beq	1001b
+
+1002:		@ exit busyuart
+		.endm
diff --git a/include/asm-arm/arch-s3c2410/dma.h b/include/asm-arm/arch-s3c2410/dma.h
new file mode 100644
index 00000000000..e830a40e573
--- /dev/null
+++ b/include/asm-arm/arch-s3c2410/dma.h
@@ -0,0 +1,376 @@
+/* linux/include/asm-arm/arch-bast/dma.h
+ *
+ * Copyright (C) 2003,2004 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * Samsung S3C2410X DMA support
+ *
+ * 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.
+ *
+ * Changelog:
+ *  ??-May-2003 BJD   Created file
+ *  ??-Jun-2003 BJD   Added more dma functionality to go with arch
+ *  10-Nov-2004 BJD   Added sys_device support
+*/
+
+#ifndef __ASM_ARCH_DMA_H
+#define __ASM_ARCH_DMA_H __FILE__
+
+#include <linux/config.h>
+#include <linux/sysdev.h>
+#include "hardware.h"
+
+
+/*
+ * This is the maximum DMA address(physical address) that can be DMAd to.
+ *
+ */
+#define MAX_DMA_ADDRESS		0x20000000
+#define MAX_DMA_TRANSFER_SIZE   0x100000 /* Data Unit is half word  */
+
+
+/* according to the samsung port, we cannot use the regular
+ * dma channels... we must therefore provide our own interface
+ * for DMA, and allow our drivers to use that.
+ */
+
+#define MAX_DMA_CHANNELS	0
+
+
+/* we have 4 dma channels */
+#define S3C2410_DMA_CHANNELS        (4)
+
+/* types */
+
+typedef enum {
+	S3C2410_DMA_IDLE,
+	S3C2410_DMA_RUNNING,
+	S3C2410_DMA_PAUSED
+} s3c2410_dma_state_t;
+
+
+/* s3c2410_dma_loadst_t
+ *
+ * This represents the state of the DMA engine, wrt to the loaded / running
+ * transfers. Since we don't have any way of knowing exactly the state of
+ * the DMA transfers, we need to know the state to make decisions on wether
+ * we can
+ *
+ * S3C2410_DMA_NONE
+ *
+ * There are no buffers loaded (the channel should be inactive)
+ *
+ * S3C2410_DMA_1LOADED
+ *
+ * There is one buffer loaded, however it has not been confirmed to be
+ * loaded by the DMA engine. This may be because the channel is not
+ * yet running, or the DMA driver decided that it was too costly to
+ * sit and wait for it to happen.
+ *
+ * S3C2410_DMA_1RUNNING
+ *
+ * The buffer has been confirmed running, and not finisged
+ *
+ * S3C2410_DMA_1LOADED_1RUNNING
+ *
+ * There is a buffer waiting to be loaded by the DMA engine, and one
+ * currently running.
+*/
+
+typedef enum {
+	S3C2410_DMALOAD_NONE,
+	S3C2410_DMALOAD_1LOADED,
+	S3C2410_DMALOAD_1RUNNING,
+	S3C2410_DMALOAD_1LOADED_1RUNNING,
+} s3c2410_dma_loadst_t;
+
+typedef enum {
+	S3C2410_RES_OK,
+	S3C2410_RES_ERR,
+	S3C2410_RES_ABORT
+} s3c2410_dma_buffresult_t;
+
+
+typedef enum s3c2410_dmasrc_e s3c2410_dmasrc_t;
+
+enum s3c2410_dmasrc_e {
+	S3C2410_DMASRC_HW,      /* source is memory */
+	S3C2410_DMASRC_MEM      /* source is hardware */
+};
+
+/* enum s3c2410_chan_op_e
+ *
+ * operation codes passed to the DMA code by the user, and also used
+ * to inform the current channel owner of any changes to the system state
+*/
+
+enum s3c2410_chan_op_e {
+	S3C2410_DMAOP_START,
+	S3C2410_DMAOP_STOP,
+	S3C2410_DMAOP_PAUSE,
+	S3C2410_DMAOP_RESUME,
+	S3C2410_DMAOP_FLUSH,
+	S3C2410_DMAOP_TIMEOUT,           /* internal signal to handler */
+};
+
+typedef enum s3c2410_chan_op_e s3c2410_chan_op_t;
+
+/* flags */
+
+#define S3C2410_DMAF_SLOW         (1<<0)   /* slow, so don't worry about
+					    * waiting for reloads */
+#define S3C2410_DMAF_AUTOSTART    (1<<1)   /* auto-start if buffer queued */
+
+/* dma buffer */
+
+typedef struct s3c2410_dma_buf_s s3c2410_dma_buf_t;
+
+struct s3c2410_dma_client {
+	char                *name;
+};
+
+typedef struct s3c2410_dma_client s3c2410_dma_client_t;
+
+/* s3c2410_dma_buf_s
+ *
+ * internally used buffer structure to describe a queued or running
+ * buffer.
+*/
+
+struct s3c2410_dma_buf_s {
+	s3c2410_dma_buf_t   *next;
+	int                  magic;        /* magic */
+	int                  size;         /* buffer size in bytes */
+	dma_addr_t           data;         /* start of DMA data */
+	dma_addr_t           ptr;          /* where the DMA got to [1] */
+	void                *id;           /* client's id */
+};
+
+/* [1] is this updated for both recv/send modes? */
+
+typedef struct s3c2410_dma_chan_s s3c2410_dma_chan_t;
+
+/* s3c2410_dma_cbfn_t
+ *
+ * buffer callback routine type
+*/
+
+typedef void (*s3c2410_dma_cbfn_t)(s3c2410_dma_chan_t *, void *buf, int size,
+				   s3c2410_dma_buffresult_t result);
+
+typedef int  (*s3c2410_dma_opfn_t)(s3c2410_dma_chan_t *,
+				   s3c2410_chan_op_t );
+
+struct s3c2410_dma_stats_s {
+	unsigned long          loads;
+	unsigned long          timeout_longest;
+	unsigned long          timeout_shortest;
+	unsigned long          timeout_avg;
+	unsigned long          timeout_failed;
+};
+
+typedef struct s3c2410_dma_stats_s s3c2410_dma_stats_t;
+
+/* struct s3c2410_dma_chan_s
+ *
+ * full state information for each DMA channel
+*/
+
+struct s3c2410_dma_chan_s {
+	/* channel state flags and information */
+	unsigned char          number;      /* number of this dma channel */
+	unsigned char          in_use;      /* channel allocated */
+	unsigned char          irq_claimed; /* irq claimed for channel */
+	unsigned char          irq_enabled; /* irq enabled for channel */
+	unsigned char          xfer_unit;   /* size of an transfer */
+
+	/* channel state */
+
+	s3c2410_dma_state_t    state;
+	s3c2410_dma_loadst_t   load_state;
+	s3c2410_dma_client_t  *client;
+
+	/* channel configuration */
+	s3c2410_dmasrc_t       source;
+	unsigned long          dev_addr;
+	unsigned long          load_timeout;
+	unsigned int           flags;        /* channel flags */
+
+	/* channel's hardware position and configuration */
+	void __iomem           *regs;        /* channels registers */
+	void __iomem           *addr_reg;    /* data address register */
+	unsigned int           irq;          /* channel irq */
+	unsigned long          dcon;         /* default value of DCON */
+
+	/* driver handles */
+	s3c2410_dma_cbfn_t     callback_fn;  /* buffer done callback */
+	s3c2410_dma_opfn_t     op_fn;        /* channel operation callback */
+
+	/* stats gathering */
+	s3c2410_dma_stats_t   *stats;
+	s3c2410_dma_stats_t    stats_store;
+
+	/* buffer list and information */
+	s3c2410_dma_buf_t      *curr;        /* current dma buffer */
+	s3c2410_dma_buf_t      *next;        /* next buffer to load */
+	s3c2410_dma_buf_t      *end;         /* end of queue */
+
+	/* system device */
+	struct sys_device	dev;
+};
+
+/* the currently allocated channel information */
+extern s3c2410_dma_chan_t s3c2410_chans[];
+
+/* note, we don't really use dma_device_t at the moment */
+typedef unsigned long dma_device_t;
+
+/* functions --------------------------------------------------------------- */
+
+/* s3c2410_dma_request
+ *
+ * request a dma channel exclusivley
+*/
+
+extern int s3c2410_dma_request(dmach_t channel,
+			       s3c2410_dma_client_t *, void *dev);
+
+
+/* s3c2410_dma_ctrl
+ *
+ * change the state of the dma channel
+*/
+
+extern int s3c2410_dma_ctrl(dmach_t channel, s3c2410_chan_op_t op);
+
+/* s3c2410_dma_setflags
+ *
+ * set the channel's flags to a given state
+*/
+
+extern int s3c2410_dma_setflags(dmach_t channel,
+				unsigned int flags);
+
+/* s3c2410_dma_free
+ *
+ * free the dma channel (will also abort any outstanding operations)
+*/
+
+extern int s3c2410_dma_free(dmach_t channel, s3c2410_dma_client_t *);
+
+/* s3c2410_dma_enqueue
+ *
+ * place the given buffer onto the queue of operations for the channel.
+ * The buffer must be allocated from dma coherent memory, or the Dcache/WB
+ * drained before the buffer is given to the DMA system.
+*/
+
+extern int s3c2410_dma_enqueue(dmach_t channel, void *id,
+			       dma_addr_t data, int size);
+
+/* s3c2410_dma_config
+ *
+ * configure the dma channel
+*/
+
+extern int s3c2410_dma_config(dmach_t channel, int xferunit, int dcon);
+
+/* s3c2410_dma_devconfig
+ *
+ * configure the device we're talking to
+*/
+
+extern int s3c2410_dma_devconfig(int channel, s3c2410_dmasrc_t source,
+				 int hwcfg, unsigned long devaddr);
+
+/* s3c2410_dma_getposition
+ *
+ * get the position that the dma transfer is currently at
+*/
+
+extern int s3c2410_dma_getposition(dmach_t channel,
+				   dma_addr_t *src, dma_addr_t *dest);
+
+extern int s3c2410_dma_set_opfn(dmach_t, s3c2410_dma_opfn_t rtn);
+extern int s3c2410_dma_set_buffdone_fn(dmach_t, s3c2410_dma_cbfn_t rtn);
+
+/* DMA Register definitions */
+
+#define S3C2410_DMA_DISRC       (0x00)
+#define S3C2410_DMA_DISRCC      (0x04)
+#define S3C2410_DMA_DIDST       (0x08)
+#define S3C2410_DMA_DIDSTC      (0x0C)
+#define S3C2410_DMA_DCON        (0x10)
+#define S3C2410_DMA_DSTAT       (0x14)
+#define S3C2410_DMA_DCSRC       (0x18)
+#define S3C2410_DMA_DCDST       (0x1C)
+#define S3C2410_DMA_DMASKTRIG   (0x20)
+
+#define S3C2410_DISRCC_INC	(1<<0)
+#define S3C2410_DISRCC_APB	(1<<1)
+
+#define S3C2410_DMASKTRIG_STOP   (1<<2)
+#define S3C2410_DMASKTRIG_ON     (1<<1)
+#define S3C2410_DMASKTRIG_SWTRIG (1<<0)
+
+#define S3C2410_DCON_DEMAND     (0<<31)
+#define S3C2410_DCON_HANDSHAKE  (1<<31)
+#define S3C2410_DCON_SYNC_PCLK  (0<<30)
+#define S3C2410_DCON_SYNC_HCLK  (1<<30)
+
+#define S3C2410_DCON_INTREQ     (1<<29)
+
+#define S3C2410_DCON_CH0_XDREQ0	(0<<24)
+#define S3C2410_DCON_CH0_UART0	(1<<24)
+#define S3C2410_DCON_CH0_SDI	(2<<24)
+#define S3C2410_DCON_CH0_TIMER	(3<<24)
+#define S3C2410_DCON_CH0_USBEP1	(4<<24)
+
+#define S3C2410_DCON_CH1_XDREQ1	(0<<24)
+#define S3C2410_DCON_CH1_UART1	(1<<24)
+#define S3C2410_DCON_CH1_I2SSDI	(2<<24)
+#define S3C2410_DCON_CH1_SPI