Add Vibren (was Accelent) PXA255 IDP Support

Patch by Cliff Brake, 04 Feb 2005

9 files changed, 1229 insertions, 0 deletions

diff --git a/board/pxa255_idp/Makefile b/board/pxa255_idp/Makefile
new file mode 100644
index 0000000000..b5f352a6f6
--- /dev/null
+++ b/board/pxa255_idp/Makefile
@@ -0,0 +1,48 @@
+
+#
+# (C) Copyright 2000-2005
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# 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 $(TOPDIR)/config.mk
+
+LIB	= lib$(BOARD).a
+
+OBJS	:= pxa_idp.o
+SOBJS	:= memsetup.o
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) crv $@ $(OBJS) $(SOBJS)
+
+clean:
+	rm -f $(SOBJS) $(OBJS)
+
+distclean:	clean
+	rm -f $(LIB) core *.bak .depend
+
+#########################################################################
+
+.depend:	Makefile $(SOBJS:.o=.S) $(OBJS:.o=.c)
+		$(CC) -M $(CPPFLAGS) $(SOBJS:.o=.S) $(OBJS:.o=.c) > $@
+
+-include .depend
+
+#########################################################################
diff --git a/board/pxa255_idp/README b/board/pxa255_idp/README
new file mode 100644
index 0000000000..0cc2f2ae33
--- /dev/null
+++ b/board/pxa255_idp/README
@@ -0,0 +1,11 @@
+Tested:
+
+- MMC
+- Ethernet
+- BL console (on serial port connector J5)
+- flash support
+
+Todo:
+
+- display support
+- PCMCIA support
diff --git a/board/pxa255_idp/config.mk b/board/pxa255_idp/config.mk
new file mode 100644
index 0000000000..d2a2040e68
--- /dev/null
+++ b/board/pxa255_idp/config.mk
@@ -0,0 +1,3 @@
+#TEXT_BASE = 0xa1700000
+TEXT_BASE = 0xa3000000
+#TEXT_BASE = 0
diff --git a/board/pxa255_idp/idp_notes.txt b/board/pxa255_idp/idp_notes.txt
new file mode 100644
index 0000000000..47467485fe
--- /dev/null
+++ b/board/pxa255_idp/idp_notes.txt
@@ -0,0 +1,46 @@
+Notes on the Vibren PXA255 IDP.
+
+Chip select usage:
+
+CS0 - flash
+CS1 - alt flash (Mdoc or main flash)
+CS2 - high speed expansion bus
+CS3 - Media Q, low speed exp bus
+CS4 - low speed exp bus
+CS5 - low speed exp bus
+  - IDE: offset 0x03000000 (abs: 0x17000000)
+  - Eth: offset 0x03400000 (abs: 0x17400000)
+  - core voltage latch: offset 0x03800000 (abs: 0x17800000)
+  - CPLD: offset 0x03C00000 (abs: 0x17C00000)
+
+PCMCIA Power control
+
+MAX1602EE w/ code pulled high (Cirrus code)
+vx = 5v
+vy = 3v
+
+			Bit pattern
+			PWR 3,2,1,0
+vcc	     vpp	A1VCC  A0VCC   A1VPP   A0VPP
+=====================================================
+0	     0            0      0       0       0	0x0
+3 (vy)	     0            1      0       1       1	0xB
+3 (vy)	     3 (vy)       1      0       0       1	0x9
+3 (vy)	     12(12in)     1      0       1       0	0xA
+5 (vx)	     0            0      1       1       1	0x7
+5 (vx)	     5 (vx)       0      1       0       1	0x5
+5 (vx	     12(12in)     0      1       1       0	0x6
+
+Display power sequencing:
+
+- VDD applied
+- within 1sec, activate scanning signals
+- wait at least 50mS - scanning signals must be active before activating DISP
+
+Signal mapping:
+Schematic            LV8V31 signal name
+=========================================
+LCD_ENAVLCD		DISP
+LCD_PWR			Applies VDD to board
+
+Both of the above signals are controlled by the CPLD
diff --git a/board/pxa255_idp/memsetup.S b/board/pxa255_idp/memsetup.S
new file mode 100644
index 0000000000..7e485a28a6
--- /dev/null
+++ b/board/pxa255_idp/memsetup.S
@@ -0,0 +1,496 @@
+/*
+ * Most of this taken from Redboot hal_platform_setup.h with cleanup
+ *
+ * NOTE: I haven't clean this up considerably, just enough to get it
+ * running. See hal_platform_setup.h for the source. See
+ * board/cradle/memsetup.S for another PXA250 setup that is
+ * much cleaner.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 <config.h>
+#include <version.h>
+#include <asm/arch/pxa-regs.h>
+
+DRAM_SIZE:  .long   CFG_DRAM_SIZE
+
+/* wait for coprocessor write complete */
+	.macro CPWAIT reg
+	mrc  p15,0,\reg,c2,c0,0
+	mov  \reg,\reg
+	sub  pc,pc,#4
+	.endm
+
+/*
+ * 	Memory setup
+ */
+.globl memsetup
+memsetup:
+
+	mov      r10, lr
+
+#ifdef DEBUG_BLINK_ENABLE
+	/* 3rd blink */
+	bl	blink
+#endif
+
+	/* Set up GPIO pins first ----------------------------------------- */
+	ldr		r0,	=GPSR0
+	ldr		r1,	=CFG_GPSR0_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GPSR1
+	ldr		r1,	=CFG_GPSR1_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GPSR2
+	ldr		r1,	=CFG_GPSR2_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GPCR0
+	ldr		r1,	=CFG_GPCR0_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GPCR1
+	ldr		r1,	=CFG_GPCR1_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GPCR2
+	ldr		r1,	=CFG_GPCR2_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GPDR0
+	ldr		r1,	=CFG_GPDR0_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GPDR1
+	ldr		r1,	=CFG_GPDR1_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GPDR2
+	ldr		r1,	=CFG_GPDR2_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GAFR0_L
+	ldr		r1,	=CFG_GAFR0_L_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GAFR0_U
+	ldr		r1,	=CFG_GAFR0_U_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GAFR1_L
+	ldr		r1,	=CFG_GAFR1_L_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GAFR1_U
+	ldr		r1,	=CFG_GAFR1_U_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GAFR2_L
+	ldr		r1,	=CFG_GAFR2_L_VAL
+	str		r1,   [r0]
+
+	ldr		r0,	=GAFR2_U
+	ldr		r1,	=CFG_GAFR2_U_VAL
+	str		r1,   [r0]
+
+	ldr	r0,	=PSSR		/* enable GPIO pins */
+	ldr		r1,	=CFG_PSSR_VAL
+	str		r1,   [r0]
+
+#ifdef DEBUG_BLINK_ENABLE
+	/* 4th debug blink */
+	bl 	blink
+#endif
+
+	/* ---------------------------------------------------------------- */
+	/* Enable memory interface                                          */
+	/*                                                                  */
+	/* The sequence below is based on the recommended init steps        */
+	/* detailed in the Intel PXA250 Operating Systems Developers Guide, */
+	/* Chapter 10.                                                      */
+	/* ---------------------------------------------------------------- */
+
+	/* ---------------------------------------------------------------- */
+	/* Step 1: Wait for at least 200 microsedonds to allow internal     */
+	/*         clocks to settle. Only necessary after hard reset...     */
+	/*         FIXME: can be optimized later                            */
+	/* ---------------------------------------------------------------- */
+
+	ldr r3, =OSCR			/* reset the OS Timer Count to zero */
+	mov r2, #0
+	str r2, [r3]
+	ldr r4, =0x300			/* really 0x2E1 is about 200usec,   */
+					/* so 0x300 should be plenty        */
+1:
+	ldr r2, [r3]
+	cmp r4, r2
+	bgt 1b
+
+mem_init:
+
+	ldr     r1,  =MEMC_BASE		/* get memory controller base addr. */
+
+	/* ---------------------------------------------------------------- */
+	/* Step 2a: Initialize Asynchronous static memory controller        */
+	/* ---------------------------------------------------------------- */
+
+	/* MSC registers: timing, bus width, mem type                       */
+
+	/* MSC0: nCS(0,1)                                                   */
+	ldr     r2,   =CFG_MSC0_VAL
+	str     r2,   [r1, #MSC0_OFFSET]
+	ldr     r2,   [r1, #MSC0_OFFSET]	/* read back to ensure      */
+						/* that data latches        */
+	/* MSC1: nCS(2,3)                                                   */
+	ldr     r2,  =CFG_MSC1_VAL
+	str     r2,  [r1, #MSC1_OFFSET]
+	ldr     r2,  [r1, #MSC1_OFFSET]
+
+	/* MSC2: nCS(4,5)                                                   */
+	ldr     r2,  =CFG_MSC2_VAL
+	str     r2,  [r1, #MSC2_OFFSET]
+	ldr     r2,  [r1, #MSC2_OFFSET]
+
+	/* ---------------------------------------------------------------- */
+	/* Step 2b: Initialize Card Interface                               */
+	/* ---------------------------------------------------------------- */
+
+	/* MECR: Memory Expansion Card Register                             */
+	ldr     r2,  =CFG_MECR_VAL
+	str     r2,  [r1, #MECR_OFFSET]
+	ldr	r2,	[r1, #MECR_OFFSET]
+
+	/* MCMEM0: Card Interface slot 0 timing                             */
+	ldr     r2,  =CFG_MCMEM0_VAL
+	str     r2,  [r1, #MCMEM0_OFFSET]
+	ldr	r2,	[r1, #MCMEM0_OFFSET]
+
+	/* MCMEM1: Card Interface slot 1 timing                             */
+	ldr     r2,  =CFG_MCMEM1_VAL
+	str     r2,  [r1, #MCMEM1_OFFSET]
+	ldr	r2,	[r1, #MCMEM1_OFFSET]
+
+	/* MCATT0: Card Interface Attribute Space Timing, slot 0            */
+	ldr     r2,  =CFG_MCATT0_VAL
+	str     r2,  [r1, #MCATT0_OFFSET]
+	ldr	r2,	[r1, #MCATT0_OFFSET]
+
+	/* MCATT1: Card Interface Attribute Space Timing, slot 1            */
+	ldr     r2,  =CFG_MCATT1_VAL
+	str     r2,  [r1, #MCATT1_OFFSET]
+	ldr	r2,	[r1, #MCATT1_OFFSET]
+
+	/* MCIO0: Card Interface I/O Space Timing, slot 0                   */
+	ldr     r2,  =CFG_MCIO0_VAL
+	str     r2,  [r1, #MCIO0_OFFSET]
+	ldr	r2,	[r1, #MCIO0_OFFSET]
+
+	/* MCIO1: Card Interface I/O Space Timing, slot 1                   */
+	ldr     r2,  =CFG_MCIO1_VAL
+	str     r2,  [r1, #MCIO1_OFFSET]
+	ldr	r2,	[r1, #MCIO1_OFFSET]
+
+#ifdef DEBUG_BLINK_ENABLE
+	/* 5th blink */
+	bl 	blink
+#endif
+
+	/* ---------------------------------------------------------------- */
+	/* Step 2c: Write FLYCNFG  FIXME: what's that???                    */
+	/* ---------------------------------------------------------------- */
+
+	/* ---------------------------------------------------------------- */
+	/* Step 2d: Initialize Timing for Sync Memory (SDCLK0)              */
+	/* ---------------------------------------------------------------- */
+
+	/* Before accessing MDREFR we need a valid DRI field, so we set     */
+	/* this to power on defaults + DRI field.                           */
+
+	ldr     r3,     =CFG_MDREFR_VAL
+	ldr     r2,     =0xFFF
+	and     r3,     r3,  r2
+	ldr	r4,	=0x03ca4000
+	orr     r4,     r4,  r3
+	str	r4,	[r1, #MDREFR_OFFSET]	/* write back MDREFR        */
+	ldr     r4,  [r1, #MDREFR_OFFSET]
+
+	/* Note: preserve the mdrefr value in r4                            */
+
+	/* ---------------------------------------------------------------- */
+	/* Step 3: Initialize Synchronous Static Memory (Flash/Peripherals) */
+	/* ---------------------------------------------------------------- */
+
+	/* Initialize SXCNFG register. Assert the enable bits               */
+
+	/* Write SXMRS to cause an MRS command to all enabled banks of      */
+	/* synchronous static memory. Note that SXLCR need not be written   */
+	/* at this time.                                                    */
+
+	/* FIXME: we use async mode for now                                 */
+
+	/* ---------------------------------------------------------------- */
+	/* Step 4: Initialize SDRAM                                         */
+	/* ---------------------------------------------------------------- */
+
+	/* set MDREFR according to user define with exception of a few bits */
+
+	ldr     r4,     =CFG_MDREFR_VAL
+	orr	r4,	r4,	#(MDREFR_SLFRSH)
+	bic	r4,	r4,	#(MDREFR_E1PIN|MDREFR_E0PIN)
+	str     r4,     [r1, #MDREFR_OFFSET]    /* write back MDREFR        */
+	ldr     r4,  [r1, #MDREFR_OFFSET]
+
+	/* Step 4b: de-assert MDREFR:SLFRSH.                                */
+
+	bic	r4,	r4,	#(MDREFR_SLFRSH)
+	str     r4,     [r1, #MDREFR_OFFSET]    /* write back MDREFR        */
+	ldr     r4,  [r1, #MDREFR_OFFSET]
+
+	/* Step 4c: assert MDREFR:E1PIN and E0PIO as desired                */
+
+	ldr     r4,     =CFG_MDREFR_VAL
+	str     r4,     [r1, #MDREFR_OFFSET]    /* write back MDREFR        */
+	ldr     r4,     [r1, #MDREFR_OFFSET]
+
+
+	/* Step 4d: write MDCNFG with MDCNFG:DEx deasserted (set to 0), to  */
+	/*          configure but not enable each SDRAM partition pair.     */
+
+	ldr	r4,	=CFG_MDCNFG_VAL
+	bic	r4,	r4,	#(MDCNFG_DE0|MDCNFG_DE1)
+
+	str     r4,     [r1, #MDCNFG_OFFSET]	/* write back MDCNFG        */
+	ldr     r4,     [r1, #MDCNFG_OFFSET]
+
+	/* Step 4e: Wait for the clock to the SDRAMs to stabilize,          */
+	/*          100..200 µsec.                                          */
+
+	ldr r3, =OSCR			/* reset the OS Timer Count to zero */
+	mov r2, #0
+	    str r2, [r3]
+	ldr r4, =0x300			/* really 0x2E1 is about 200usec,   */
+					/* so 0x300 should be plenty        */
+1:
+	    ldr r2, [r3]
+	    cmp r4, r2
+	    bgt 1b
+
+	/* Step 4f: Trigger a number (usually 8) refresh cycles by          */
+	/*          attempting non-burst read or write accesses to disabled */
+	/*          SDRAM, as commonly specified in the power up sequence   */
+	/*          documented in SDRAM data sheets. The address(es) used   */
+	/*          for this purpose must not be cacheable.                 */
+
+	ldr	r3,	=CFG_DRAM_BASE
+	str	r2,	[r3]
+	str	r2,	[r3]
+	str	r2,	[r3]
+	str	r2,	[r3]
+	str	r2,	[r3]
+	str	r2,	[r3]
+	str	r2,	[r3]
+	str	r2,	[r3]
+
+	/* Step 4g: Write MDCNFG with enable bits asserted                  */
+	/*          (MDCNFG:DEx set to 1).                                  */
+
+	ldr     r3,  [r1, #MDCNFG_OFFSET]
+	orr	r3,	r3,	#(MDCNFG_DE0|MDCNFG_DE1)
+	str     r3,  [r1, #MDCNFG_OFFSET]
+
+	/* Step 4h: Write MDMRS.                                            */
+
+	ldr     r2,  =CFG_MDMRS_VAL
+	str     r2,  [r1, #MDMRS_OFFSET]
+
+	/* We are finished with Intel's memory controller initialisation    */
+#if 0
+	/* FIXME turn on serial ports */
+	/* look into moving this to board_init() */
+	ldr 	r2, =(PXA_CS5_PHYS + 0x03C0002c)
+	mov	r3, #0x13
+	str	r3, [r2]
+#endif
+
+#ifdef DEBUG_BLINK_ENABLE
+	/* 6th blink */
+	bl 	blink
+#endif
+
+	/* ---------------------------------------------------------------- */
+	/* Disable (mask) all interrupts at interrupt controller            */
+	/* ---------------------------------------------------------------- */
+
+initirqs:
+
+	mov     r1, #0		/* clear int. level register (IRQ, not FIQ) */
+	ldr     r2,  =ICLR
+	str     r1,  [r2]
+
+	ldr     r2,  =ICMR	/* mask all interrupts at the controller    */
+	str     r1,  [r2]
+
+	/* ---------------------------------------------------------------- */
+	/* Clock initialisation                                             */
+	/* ---------------------------------------------------------------- */
+
+initclks:
+
+	/* Disable the peripheral clocks, and set the core clock frequency  */
+	/* (hard-coding at 398.12MHz for now).                              */
+
+	/* Turn Off ALL on-chip peripheral clocks for re-configuration      */
+	/* Note: See label 'ENABLECLKS' for the re-enabling                 */
+#if 0
+	ldr     r1,  =CKEN
+	mov     r2,  #0
+	str     r2,  [r1]
+
+	/* default value in case no valid rotary switch setting is found    */
+	ldr     r2, =(CCCR_L27|CCCR_M2|CCCR_N10)  /* DEFAULT: {200/200/100} */
+
+	/* ... and write the core clock config register                     */
+	ldr     r1,  =CCCR
+	str     r2,  [r1]
+
+#endif
+
+#ifdef RTC
+	/* enable the 32Khz oscillator for RTC and PowerManager             */
+
+	ldr     r1,  =OSCC
+	mov     r2,  #OSCC_OON
+	str     r2,  [r1]
+
+	/* NOTE:  spin here until OSCC.OOK get set, meaning the PLL         */
+	/* has settled.                                                     */
+60:
+	ldr     r2, [r1]
+	ands    r2, r2, #1
+	beq     60b
+#endif
+
+	/* ---------------------------------------------------------------- */
+	/*                                                                  */
+	/* ---------------------------------------------------------------- */
+
+	/* Save SDRAM size */
+	ldr     r1, =DRAM_SIZE
+	 str	   r8, [r1]
+
+	/* Interrupt init: Mask all interrupts                              */
+	ldr	r0, =ICMR /* enable no sources */
+	mov r1, #0
+	str r1, [r0]
+
+	/* FIXME */
+
+#define NODEBUG
+#ifdef NODEBUG
+	/*Disable software and data breakpoints */
+	mov	r0,#0
+	mcr	p15,0,r0,c14,c8,0  /* ibcr0 */
+	mcr	p15,0,r0,c14,c9,0  /* ibcr1 */
+	mcr	p15,0,r0,c14,c4,0  /* dbcon */
+
+	/*Enable all debug functionality */
+	mov	r0,#0x80000000
+	mcr	p14,0,r0,c10,c0,0  /* dcsr */
+#endif
+
+	/* ---------------------------------------------------------------- */
+	/* End memsetup                                                     */
+	/* ---------------------------------------------------------------- */
+
+#ifdef DEBUG_BLINK_ENABLE
+	/* 7th blink */
+	bl 	blink
+#endif
+
+endmemsetup:
+
+	mov     pc, r10
+
+
+#ifdef DEBUG_BLINK_ENABLE
+
+/* debug LED code */
+
+/* delay about 200ms */
+delay:
+
+	/* reset OSCR to 0 */
+	ldr	r8, =OSCR
+	mov	r9, #0
+	str	r9, [r8]
+
+	/* make sure new value has stuck */
+1:
+	ldr	r8, =OSCR
+	ldr	r9, [r8]
+	mov	r8, #0x10000
+	cmp	r9, r8
+	bgt	1b
+
+	/* now, wait for delay to expire */
+1:
+	ldr	r8, =OSCR
+	ldr	r9, [r8]
+	mov	r8, #0xd4000
+	cmp	r8, r9
+	bgt	1b
+
+	mov	pc, lr
+
+/* blink code -- trashes r7, r8, r9 */
+
+.globl blink
+blink:
+
+	mov	r7, lr
+
+	/* set GPIO10 as outout */
+	ldr	r8,  =GPDR0
+	ldr	r9,  [r8]
+	orr	r9,  r9, #(1<<10)
+	str	r9,  [r8]
+
+	/* turn LED off */
+	mov	r9,  #(1<<10)
+	ldr	r8,  =GPCR0
+	str	r9, [r8]
+	bl	delay
+
+	/* turn LED on */
+	mov	r9,  #(1<<10)
+	ldr	r8,  =GPSR0
+	str	r9, [r8]
+	bl	delay
+
+	/* turn LED off */
+	mov	r9,  #(1<<10)
+	ldr	r8,  =GPCR0
+	str	r9, [r8]
+
+	mov	pc, r7
+
+#endif
diff --git a/board/pxa255_idp/pxa_idp.c b/board/pxa255_idp/pxa_idp.c
new file mode 100644
index 0000000000..d5b993ae55
--- /dev/null
+++ b/board/pxa255_idp/pxa_idp.c
@@ -0,0 +1,140 @@
+/*
+ * (C) Copyright 2002
+ * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2004
+ * BEC Systems <http://bec-systems.com>
+ * Cliff Brake <cliff.brake@gmail.com>
+ * Support for Accelent/Vibren PXA255 IDP
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 <common.h>
+#include <command.h>
+
+/* ------------------------------------------------------------------------- */
+
+
+/*
+ * Miscelaneous platform dependent initialisations
+ */
+
+int board_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	/* memory and cpu-speed are setup before relocation */
+	/* so we do _nothing_ here */
+
+	/* arch number of Lubbock-Board */
+	gd->bd->bi_arch_number = MACH_TYPE_PXA_IDP;
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = 0xa0000100;
+
+	/* turn on serial ports */
+	*(volatile unsigned int *)(PXA_CS5_PHYS + 0x03C0002c) = 0x13;
+
+	/* set PWM for LCD */
+	/* a value that works is 60Hz, 77% duty cycle */
+	CKEN |= CKEN0_PWM0;
+	PWM_CTRL0 = 0x3f;
+	PWM_PERVAL0 = 0x3ff;
+	PWM_PWDUTY0 = 792;
+
+	/* clear reset to AC97 codec */
+	CKEN |= CKEN2_AC97;
+	GCR = GCR_COLD_RST;
+
+	/* enable LCD backlight */
+	/* *(volatile unsigned int *)(PXA_CS5_PHYS + 0x03C00030) = 0x7; */
+
+	/* test display */
+	/* lcd_puts("This is a test\nTest #2\n"); */
+
+	return 0;
+}
+
+int board_late_init(void)
+{
+	setenv("stdout", "serial");
+	setenv("stderr", "serial");
+	return 0;
+}
+
+
+int dram_init (void)
+{
+	DECLARE_GLOBAL_DATA_PTR;
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size = PHYS_SDRAM_1_SIZE;
+	gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+	gd->bd->bi_dram[1].size = PHYS_SDRAM_2_SIZE;
+	gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
+	gd->bd->bi_dram[2].size = PHYS_SDRAM_3_SIZE;
+	gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
+	gd->bd->bi_dram[3].size = PHYS_SDRAM_4_SIZE;
+
+	return 0;
+}
+
+
+#ifdef DEBUG_BLINKC_ENABLE
+
+void delay_c(void)
+{
+	/* reset OSCR to 0 */
+	OSCR = 0;
+	while(OSCR > 0x10000)
+		;
+
+	while(OSCR < 0xd4000)
+		;
+}
+
+void blink_c(void)
+{
+	int led_bit = (1<<10);
+
+	GPDR0 = led_bit;
+	GPCR0 = led_bit;
+	delay_c();
+	GPSR0 = led_bit;
+	delay_c();
+	GPCR0 = led_bit;
+}
+
+int do_idpcmd(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+	printf("IDPCMD started\n");
+	return 0;
+}
+
+U_BOOT_CMD(idpcmd, CFG_MAXARGS, 0, do_idpcmd,
+	   "idpcmd    - custom IDP command\n",
+	   "no args at this time\n"
+);
+
+#endif
diff --git a/board/pxa255_idp/pxa_reg_calcs.out b/board/pxa255_idp/pxa_reg_calcs.out
new file mode 100644
index 0000000000..bda9946c1c
--- /dev/null
+++ b/board/pxa255_idp/pxa_reg_calcs.out
@@ -0,0 +1,119 @@
+gafr0_l: 0x80001005
+gafr0_u: 0xa5128012
+gafr1_l: 0x699a9558
+gafr1_u: 0xaaa5aa6a
+gafr2_l: 0xaaaaaaaa
+gafr2_u: 0x2
+gpcr0: 0x1800400
+gpcr1: 0x0
+gpcr2: 0x0
+gpdr0: 0xc1818440
+gpdr1: 0xfcffab82
+gpdr2: 0x1ffff
+gpsr0: 0x8000
+gpsr1: 0x3f0002
+gpsr2: 0x1c000
+
+
+#define CFG_GAFR0_L_VAL	0x80001005
+#define CFG_GAFR0_U_VAL	0xa5128012
+#define CFG_GAFR1_L_VAL	0x699a9558
+#define CFG_GAFR1_U_VAL	0xaaa5aa6a
+#define CFG_GAFR2_L_VAL	0xaaaaaaaa
+#define CFG_GAFR2_U_VAL	0x2
+#define CFG_GPCR0_VAL	0x1800400
+#define CFG_GPCR1_VAL	0x0
+#define CFG_GPCR2_VAL	0x0
+#define CFG_GPDR0_VAL	0xc1818440
+#define CFG_GPDR1_VAL	0xfcffab82
+#define CFG_GPDR2_VAL	0x1ffff
+#define CFG_GPSR0_VAL	0x8000
+#define CFG_GPSR1_VAL	0x3f0002
+#define CFG_GPSR2_VAL	0x1c000
+
+
+GPIO: 0, dir=0, set=0, clr=0, alt=none, desc=USER_RESET#
+GPIO: 1, dir=0, set=0, clr=0, alt=gpio reset, desc=USER_RESET#
+GPIO: 2, dir=0, set=0, clr=0, alt=gpio, desc=BAT_DATA
+GPIO: 3, dir=0, set=0, clr=0, alt=gpio, desc=MQ_IRQ#
+GPIO: 4, dir=0, set=0, clr=0, alt=gpio, desc=IRQ_ETH
+GPIO: 5, dir=0, set=0, clr=0, alt=gpio, desc=IRQ_TOUCH#
+GPIO: 6, dir=1, set=0, clr=0, alt=MMC clk, desc=MMC_CLK
+GPIO: 7, dir=0, set=0, clr=0, alt=gpio, desc=PCC_S0_CD#
+GPIO: 8, dir=0, set=0, clr=0, alt=gpio, desc=PCC_S1_CD#
+GPIO: 9, dir=0, set=0, clr=0, alt=gpio, desc=MMC_CD#
+GPIO: 10, dir=1, set=0, clr=1, alt=gpio, desc=GPIO_10/RTC_CLK/debug LED
+GPIO: 11, dir=0, set=0, clr=0, alt=gpio, desc=3M6_CLK
+GPIO: 12, dir=0, set=0, clr=0, alt=gpio, desc=GPIO_12/32K_CLK
+GPIO: 13, dir=0, set=0, clr=0, alt=gpio, desc=MBGNT
+GPIO: 14, dir=0, set=0, clr=0, alt=gpio, desc=MBREQ
+GPIO: 15, dir=1, set=1, clr=0, alt=nCS_1, desc=CS1#
+GPIO: 16, dir=1, set=0, clr=0, alt=PWM0, desc=PWM0
+GPIO: 17, dir=0, set=0, clr=0, alt=gpio, desc=IRQ_AXB
+GPIO: 18, dir=0, set=0, clr=0, alt=RDY, desc=RDY
+GPIO: 19, dir=0, set=0, clr=0, alt=gpio, desc=XB_DREQ1, PCC_SO_IRQ_O#
+GPIO: 20, dir=0, set=0, clr=0, alt=gpio, desc=XB_DREQ0
+GPIO: 21, dir=0, set=0, clr=0, alt=gpio, desc=IRQ_IDE, PFI
+GPIO: 22, dir=0, set=0, clr=0, alt=gpio, desc=Consumer IR, PCC_S1_IRQ_O#
+GPIO: 23, dir=1, set=0, clr=1, alt=SSP SCLK, desc=SSP_SCLK
+GPIO: 24, dir=1, set=0, clr=1, alt=SSP SFRM, desc=SSP_SFRM
+GPIO: 25, dir=0, set=0, clr=0, alt=gpio, desc=SSP_TXD
+GPIO: 26, dir=0, set=0, clr=0, alt=SSP RXD, desc=SSP_RXD
+GPIO: 27, dir=0, set=0, clr=0, alt=gpio, desc=SSP_EXTCLK
+GPIO: 28, dir=0, set=0, clr=0, alt=AC97 bitclk in, I2S bitclock out, desc=AC_BITCLK
+GPIO: 29, dir=0, set=0, clr=0, alt=AC97 SDATA_IN0, desc=AUD_SDIN0
+GPIO: 30, dir=1, set=0, clr=0, alt=AC97 SDATA_OUT, desc=AC_SDOUT
+GPIO: 31, dir=1, set=0, clr=0, alt=AC97 SYNC, desc=AC_SYNC
+GPIO: 32, dir=0, set=0, clr=0, alt=gpio, desc=AUD_SDIN1
+GPIO: 33, dir=1, set=1, clr=0, alt=nCS_5, desc=CS5#
+GPIO: 34, dir=0, set=0, clr=0, alt=FF RXD, desc=FF_RXD
+GPIO: 35, dir=0, set=0, clr=0, alt=FF CTS, desc=FF_CTS
+GPIO: 36, dir=0, set=0, clr=0, alt=FF DCD, desc=FF_DCD
+GPIO: 37, dir=0, set=0, clr=0, alt=FF DSR, desc=FF_DSR
+GPIO: 38, dir=0, set=0, clr=0, alt=FF RI, desc=FF_RI
+GPIO: 39, dir=1, set=0, clr=0, alt=FF TXD, desc=FF_TXD
+GPIO: 40, dir=1, set=0, clr=0, alt=FF DTR, desc=FF_DTR
+GPIO: 41, dir=1, set=0, clr=0, alt=FF RTS, desc=FF_RTS
+GPIO: 42, dir=0, set=0, clr=0, alt=BT RXD, desc=BT_RXD
+GPIO: 43, dir=1, set=0, clr=0, alt=BT TXD, desc=BT_TXD
+GPIO: 44, dir=0, set=0, clr=0, alt=BT CTS, desc=BT_CTS
+GPIO: 45, dir=1, set=0, clr=0, alt=BT RTS, desc=BT_RTS
+GPIO: 46, dir=0, set=0, clr=0, alt=STD RXD, desc=IR_RXD
+GPIO: 47, dir=1, set=0, clr=0, alt=STD TXD, desc=IR_TXD
+GPIO: 48, dir=1, set=1, clr=0, alt=nPOE, desc=PCC_OE#
+GPIO: 49, dir=1, set=1, clr=0, alt=nPWE, desc=PCC_WE#
+GPIO: 50, dir=1, set=1, clr=0, alt=nPIOR, desc=PCC_IOR#
+GPIO: 51, dir=1, set=1, clr=0, alt=nPIOW, desc=PCC_IOW#
+GPIO: 52, dir=1, set=1, clr=0, alt=nPCE[1], desc=PCC_CE1#
+GPIO: 53, dir=1, set=1, clr=0, alt=nPCE[2], desc=PCC_CE2#
+GPIO: 54, dir=1, set=0, clr=0, alt=nPSKSEL, desc=PCC_SCKSEL
+GPIO: 55, dir=1, set=0, clr=0, alt=nPREG, desc=PCC_REG#
+GPIO: 56, dir=0, set=0, clr=0, alt=nPWAIT, desc=PCC_WAIT#
+GPIO: 57, dir=0, set=0, clr=0, alt=nIOIS16, desc=PCC_IOIS16#
+GPIO: 58, dir=1, set=0, clr=0, alt=LDD[0], desc=LDD0
+GPIO: 59, dir=1, set=0, clr=0, alt=LDD[1], desc=LDD1
+GPIO: 60, dir=1, set=0, clr=0, alt=LDD[2], desc=LDD2
+GPIO: 61, dir=1, set=0, clr=0, alt=LDD[3], desc=LDD3
+GPIO: 62, dir=1, set=0, clr=0, alt=LDD[4], desc=LDD4
+GPIO: 63, dir=1, set=0, clr=0, alt=LDD[5], desc=LDD5
+GPIO: 64, dir=1, set=0, clr=0, alt=LDD[6], desc=LDD6
+GPIO: 65, dir=1, set=0, clr=0, alt=LDD[7], desc=LDD7
+GPIO: 66, dir=1, set=0, clr=0, alt=LDD[8], desc=LDD8
+GPIO: 67, dir=1, set=0, clr=0, alt=LDD[9], desc=LDD9
+GPIO: 68, dir=1, set=0, clr=0, alt=LDD[10], desc=LDD10
+GPIO: 69, dir=1, set=0, clr=0, alt=LDD[11], desc=LDD11
+GPIO: 70, dir=1, set=0, clr=0, alt=LDD[12], desc=LDD12
+GPIO: 71, dir=1, set=0, clr=0, alt=LDD[13], desc=LDD13
+GPIO: 72, dir=1, set=0, clr=0, alt=LDD[14], desc=LDD14
+GPIO: 73, dir=1, set=0, clr=0, alt=LDD[15], desc=LDD15
+GPIO: 74, dir=1, set=0, clr=0, alt=LCD_FCLK, desc=FCLK
+GPIO: 75, dir=1, set=0, clr=0, alt=LCD_LCLK, desc=LCLK
+GPIO: 76, dir=1, set=0, clr=0, alt=LCD_PCLK, desc=PCLK
+GPIO: 77, dir=1, set=0, clr=0, alt=LCD_ACBIAS, desc=ACBIAS
+GPIO: 78, dir=1, set=1, clr=0, alt=nCS_2, desc=CS2#
+GPIO: 79, dir=1, set=1, clr=0, alt=nCS_3, desc=CS3#
+GPIO: 80, dir=1, set=1, clr=0, alt=nCS_4, desc=CS4#
+GPIO: 81, dir=0, set=0, clr=0, alt=gpio, desc=
+GPIO: 82, dir=0, set=0, clr=0, alt=gpio, desc=
+GPIO: 83, dir=0, set=0, clr=0, alt=gpio, desc=
+GPIO: 84, dir=0, set=0, clr=0, alt=gpio, desc=
diff --git a/board/pxa255_idp/pxa_reg_calcs.py b/board/pxa255_idp/pxa_reg_calcs.py
new file mode 100644
index 0000000000..c4bcb4b0ad
--- /dev/null
+++ b/board/pxa255_idp/pxa_reg_calcs.py
@@ -0,0 +1,311 @@
+#!/usr/bin/python
+
+# (C) Copyright 2004
+# BEC Systems <http://bec-systems.com>
+# Cliff Brake <cliff.brake@gmail.com>
+
+# 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
+
+# calculations for PXA255 registers
+
+class gpio:
+	dir = '0'
+	set = '0'
+	clr = '0'
+	alt = '0'
+	desc = ''
+
+	def __init__(self, dir=0, set=0, clr=0, alt=0, desc=''):
+		self.dir = dir
+		self.set = set
+		self.clr = clr
+		self.alt = alt
+		self.desc = desc
+		
+
+# the following is a dictionary of all GPIOs in the system
+# the key is the GPIO number
+
+
+pxa255_alt_func = {
+	0: ['gpio', 'none', 'none', 'none'],
+	1: ['gpio', 'gpio reset', 'none', 'none'],
+	2: ['gpio', 'none', 'none', 'none'],
+	3: ['gpio', 'none', 'none', 'none'],
+	4: ['gpio', 'none', 'none', 'none'],
+	5: ['gpio', 'none', 'none', 'none'],
+	6: ['gpio', 'MMC clk', 'none', 'none'],
+	7: ['gpio', '48MHz clock', 'none', 'none'],
+	8: ['gpio', 'MMC CS0', 'none', 'none'],
+	9: ['gpio', 'MMC CS1', 'none', 'none'],
+	10: ['gpio', 'RTC Clock', 'none', 'none'],
+	11: ['gpio', '3.6MHz', 'none', 'none'],
+	12: ['gpio', '32KHz', 'none', 'none'],
+	13: ['gpio', 'none', 'MBGNT', 'none'],
+	14: ['gpio', 'MBREQ', 'none', 'none'],
+	15: ['gpio', 'none', 'nCS_1', 'none'],
+	16: ['gpio', 'none', 'PWM0', 'none'],
+	17: ['gpio', 'none', 'PWM1', 'none'],
+	18: ['gpio', 'RDY', 'none', 'none'],
+	19: ['gpio', 'DREQ[1]', 'none', 'none'],
+	20: ['gpio', 'DREQ[0]', 'none', 'none'],
+	21: ['gpio', 'none', 'none', 'none'],
+	22: ['gpio', 'none', 'none', 'none'],
+	23: ['gpio', 'none', 'SSP SCLK', 'none'],
+	24: ['gpio', 'none', 'SSP SFRM', 'none'],
+	25: ['gpio', 'none', 'SSP TXD', 'none'],
+	26: ['gpio', 'SSP RXD', 'none', 'none'],
+	27: ['gpio', 'SSP EXTCLK', 'none', 'none'],
+	28: ['gpio', 'AC97 bitclk in, I2S bitclock out', 'I2S bitclock in', 'none'],
+	29: ['gpio', 'AC97 SDATA_IN0', 'I2S SDATA_IN', 'none'],
+	30: ['gpio', 'I2S SDATA_OUT', 'AC97 SDATA_OUT', 'none'],
+	31: ['gpio', 'I2S SYNC', 'AC97 SYNC', 'none'],
+	32: ['gpio', 'AC97 SDATA_IN1', 'I2S SYSCLK', 'none'],
+	33: ['gpio', 'none', 'nCS_5', 'none'],
+	34: ['gpio', 'FF RXD', 'MMC CS0', 'none'],
+	35: ['gpio', 'FF CTS', 'none', 'none'],
+	36: ['gpio', 'FF DCD', 'none', 'none'],
+	37: ['gpio', 'FF DSR', 'none', 'none'],
+	38: ['gpio', 'FF RI', 'none', 'none'],
+	39: ['gpio', 'MMC CS1', 'FF TXD', 'none'],
+	40: ['gpio', 'none', 'FF DTR', 'none'],
+	41: ['gpio', 'none', 'FF RTS', 'none'],
+	42: ['gpio', 'BT RXD', 'none', 'HW RXD'],
+	43: ['gpio', 'none', 'BT TXD', 'HW TXD'],
+	44: ['gpio', 'BT CTS', 'none', 'HW CTS'],
+	45: ['gpio', 'none', 'BT RTS', 'HW RTS'],
+	46: ['gpio', 'ICP_RXD', 'STD RXD', 'none'],
+	47: ['gpio', 'STD TXD', 'ICP_TXD', 'none'],
+	48: ['gpio', 'HW TXD', 'nPOE', 'none'],
+	49: ['gpio', 'HW RXD', 'nPWE', 'none'],
+	50: ['gpio', 'HW CTS', 'nPIOR', 'none'],
+	51: ['gpio', 'nPIOW', 'HW RTS', 'none'],
+	52: ['gpio', 'none', 'nPCE[1]', 'none'],
+	53: ['gpio', 'MMC CLK', 'nPCE[2]', 'none'],
+	54: ['gpio', 'MMC CLK', 'nPSKSEL', 'none'],
+	55: ['gpio', 'none', 'nPREG', 'none'],
+	56: ['gpio', 'nPWAIT', 'none', 'none'],
+	57: ['gpio', 'nIOIS16', 'none', 'none'],
+	58: ['gpio', 'none', 'LDD[0]', 'none'],
+	59: ['gpio', 'none', 'LDD[1]', 'none'],
+	60: ['gpio', 'none', 'LDD[2]', 'none'],
+	61: ['gpio', 'none', 'LDD[3]', 'none'],
+	62: ['gpio', 'none', 'LDD[4]', 'none'],
+	63: ['gpio', 'none', 'LDD[5]', 'none'],
+	64: ['gpio', 'none', 'LDD[6]', 'none'],
+	65: ['gpio', 'none', 'LDD[7]', 'none'],
+	66: ['gpio', 'MBREQ', 'LDD[8]', 'none'],
+	67: ['gpio', 'MMC CS0', 'LDD[9]', 'none'],
+	68: ['gpio', 'MMC CS1', 'LDD[10]', 'none'],
+	69: ['gpio', 'MMC CLK', 'LDD[11]', 'none'],
+	70: ['gpio', 'RTC CLK', 'LDD[12]', 'none'],
+	71: ['gpio', '3.6 MHz', 'LDD[13]', 'none'],
+	72: ['gpio', '32 KHz', 'LDD[14]', 'none'],
+	73: ['gpio', 'MBGNT', 'LDD[15]', 'none'],
+	74: ['gpio', 'none', 'LCD_FCLK', 'none'],
+	75: ['gpio', 'none', 'LCD_LCLK', 'none'],
+	76: ['gpio', 'none', 'LCD_PCLK', 'none'],
+	77: ['gpio', 'none', 'LCD_ACBIAS', 'none'],
+	78: ['gpio', 'none', 'nCS_2', 'none'],
+	79: ['gpio', 'none', 'nCS_3', 'none'],
+	80: ['gpio', 'none', 'nCS_4', 'none'],
+	81: ['gpio', 'NSSPSCLK', 'none', 'none'],
+	82: ['gpio', 'NSSPSFRM', 'none', 'none'],
+	83: ['gpio', 'NSSPTXD', 'NSSPRXD', 'none'],
+	84: ['gpio', 'NSSPTXD', 'NSSPRXD', 'none'],
+}
+
+
+#def __init__(self, dir=0, set=0, clr=0, alt=0, desc=''):
+
+gpio_list = []
+
+for i in range(0,85):
+	gpio_list.append(gpio())
+
+#chip select GPIOs
+gpio_list[18] = gpio(0, 0, 0, 1, 'RDY')
+gpio_list[33] = gpio(1, 1, 0, 2, 'CS5#')
+gpio_list[80] = gpio(1, 1, 0, 2, 'CS4#')
+gpio_list[79] = gpio(1, 1, 0, 2, 'CS3#')
+gpio_list[78] = gpio(1, 1, 0, 2, 'CS2#')
+gpio_list[15] = gpio(1, 1, 0, 2, 'CS1#')
+gpio_list[22] = gpio(0, 0, 0, 0, 'Consumer IR, PCC_S1_IRQ_O#')
+gpio_list[21] = gpio(0, 0, 0, 0, 'IRQ_IDE, PFI')
+gpio_list[19] = gpio(0, 0, 0, 0, 'XB_DREQ1, PCC_SO_IRQ_O#')
+gpio_list[20] = gpio(0, 0, 0, 0, 'XB_DREQ0')
+gpio_list[20] = gpio(0, 0, 0, 0, 'XB_DREQ0')
+gpio_list[17] = gpio(0, 0, 0, 0, 'IRQ_AXB')
+gpio_list[16] = gpio(1, 0, 0, 2, 'PWM0')
+
+# PCMCIA stuff
+gpio_list[57] = gpio(0, 0, 0, 1, 'PCC_IOIS16#')
+gpio_list[56] = gpio(0, 0, 0, 1, 'PCC_WAIT#')
+gpio_list[55] = gpio(1, 0, 0, 2, 'PCC_REG#')
+gpio_list[54] = gpio(1, 0, 0, 2, 'PCC_SCKSEL')
+gpio_list[53] = gpio(1, 1, 0, 2, 'PCC_CE2#')
+gpio_list[52] = gpio(1, 1, 0, 2, 'PCC_CE1#')
+gpio_list[51] = gpio(1, 1, 0, 1, 'PCC_IOW#')
+gpio_list[50] = gpio(1, 1, 0, 2, 'PCC_IOR#')
+gpio_list[49] = gpio(1, 1, 0, 2, 'PCC_WE#')
+gpio_list[48] = gpio(1, 1, 0, 2, 'PCC_OE#')
+
+# SSP port
+gpio_list[26] = gpio(0, 0, 0, 1, 'SSP_RXD')
+gpio_list[25] = gpio(0, 0, 0, 0, 'SSP_TXD')
+gpio_list[24] = gpio(1, 0, 1, 2, 'SSP_SFRM')
+gpio_list[23] = gpio(1, 0, 1, 2, 'SSP_SCLK')
+gpio_list[27] = gpio(0, 0, 0, 0, 'SSP_EXTCLK')
+
+# audio codec
+gpio_list[32] = gpio(0, 0, 0, 0, 'AUD_SDIN1')
+gpio_list[31] = gpio(1, 0, 0, 2, 'AC_SYNC')
+gpio_list[30] = gpio(1, 0, 0, 2, 'AC_SDOUT')
+gpio_list[29] = gpio(0, 0, 0, 1, 'AUD_SDIN0')
+gpio_list[28] = gpio(0, 0, 0, 1, 'AC_BITCLK')
+
+# serial ports
+gpio_list[39] = gpio(1, 0, 0, 2, 'FF_TXD')
+gpio_list[34] = gpio(0, 0, 0, 1, 'FF_RXD')
+gpio_list[41] = gpio(1, 0, 0, 2, 'FF_RTS')
+gpio_list[35] = gpio(0, 0, 0, 1, 'FF_CTS')
+gpio_list[40] = gpio(1, 0, 0, 2, 'FF_DTR')
+gpio_list[37] = gpio(0, 0, 0, 1, 'FF_DSR')
+gpio_list[38] = gpio(0, 0, 0, 1, 'FF_RI')
+gpio_list[36] = gpio(0, 0, 0, 1, 'FF_DCD')
+
+gpio_list[43] = gpio(1, 0, 0, 2, 'BT_TXD')
+gpio_list[42] = gpio(0, 0, 0, 1, 'BT_RXD')
+gpio_list[45] = gpio(1, 0, 0, 2, 'BT_RTS')
+gpio_list[44] = gpio(0, 0, 0, 1, 'BT_CTS')
+
+gpio_list[47] = gpio(1, 0, 0, 1, 'IR_TXD')
+gpio_list[46] = gpio(0, 0, 0, 2, 'IR_RXD')
+
+# misc GPIO signals
+gpio_list[14] = gpio(0, 0, 0, 0, 'MBREQ')
+gpio_list[13] = gpio(0, 0, 0, 0, 'MBGNT')
+gpio_list[12] = gpio(0, 0, 0, 0, 'GPIO_12/32K_CLK')
+gpio_list[11] = gpio(0, 0, 0, 0, '3M6_CLK')
+gpio_list[10] = gpio(1, 0, 1, 0, 'GPIO_10/RTC_CLK/debug LED')
+gpio_list[9] = gpio(0, 0, 0, 0, 'MMC_CD#')
+gpio_list[8] = gpio(0, 0, 0, 0, 'PCC_S1_CD#')
+gpio_list[7] = gpio(0, 0, 0, 0, 'PCC_S0_CD#')
+gpio_list[6] = gpio(1, 0, 0, 1, 'MMC_CLK')
+gpio_list[5] = gpio(0, 0, 0, 0, 'IRQ_TOUCH#')
+gpio_list[4] = gpio(0, 0, 0, 0, 'IRQ_ETH')
+gpio_list[3] = gpio(0, 0, 0, 0, 'MQ_IRQ#')
+gpio_list[2] = gpio(0, 0, 0, 0, 'BAT_DATA')
+gpio_list[1] = gpio(0, 0, 0, 1, 'USER_RESET#')
+gpio_list[0] = gpio(0, 0, 0, 1, 'USER_RESET#')
+
+# LCD GPIOs
+gpio_list[58] = gpio(1, 0, 0, 2, 'LDD0')
+gpio_list[59] = gpio(1, 0, 0, 2, 'LDD1')
+gpio_list[60] = gpio(1, 0, 0, 2, 'LDD2')
+gpio_list[61] = gpio(1, 0, 0, 2, 'LDD3')
+gpio_list[62] = gpio(1, 0, 0, 2, 'LDD4')
+gpio_list[63] = gpio(1, 0, 0, 2, 'LDD5')
+gpio_list[64] = gpio(1, 0, 0, 2, 'LDD6')
+gpio_list[65] = gpio(1, 0, 0, 2, 'LDD7')
+gpio_list[66] = gpio(1, 0, 0, 2, 'LDD8')
+gpio_list[67] = gpio(1, 0, 0, 2, 'LDD9')
+gpio_list[68] = gpio(1, 0, 0, 2, 'LDD10')
+gpio_list[69] = gpio(1, 0, 0, 2, 'LDD11')
+gpio_list[70] = gpio(1, 0, 0, 2, 'LDD12')
+gpio_list[71] = gpio(1, 0, 0, 2, 'LDD13')
+gpio_list[72] = gpio(1, 0, 0, 2, 'LDD14')
+gpio_list[73] = gpio(1, 0, 0, 2, 'LDD15')
+gpio_list[74] = gpio(1, 0, 0, 2, 'FCLK')
+gpio_list[75] = gpio(1, 0, 0, 2, 'LCLK')
+gpio_list[76] = gpio(1, 0, 0, 2, 'PCLK')
+gpio_list[77] = gpio(1, 0, 0, 2, 'ACBIAS')
+
+# calculate registers
+pxa_regs = {
+	'gpdr0':0, 'gpdr1':0, 'gpdr2':0,
+	'gpsr0':0, 'gpsr1':0, 'gpsr2':0,
+	'gpcr0':0, 'gpcr1':0, 'gpcr2':0,
+	'gafr0_l':0, 'gafr0_u':0,
+	'gafr1_l':0, 'gafr1_u':0,
+	'gafr2_l':0, 'gafr2_u':0,
+}
+
+# U-boot define names
+uboot_reg_names = {
+	'gpdr0':'CFG_GPDR0_VAL', 'gpdr1':'CFG_GPDR1_VAL', 'gpdr2':'CFG_GPDR2_VAL',
+	'gpsr0':'CFG_GPSR0_VAL', 'gpsr1':'CFG_GPSR1_VAL', 'gpsr2':'CFG_GPSR2_VAL',
+	'gpcr0':'CFG_GPCR0_VAL', 'gpcr1':'CFG_GPCR1_VAL', 'gpcr2':'CFG_GPCR2_VAL',
+	'gafr0_l':'CFG_GAFR0_L_VAL', 'gafr0_u':'CFG_GAFR0_U_VAL',
+	'gafr1_l':'CFG_GAFR1_L_VAL', 'gafr1_u':'CFG_GAFR1_U_VAL',
+	'gafr2_l':'CFG_GAFR2_L_VAL', 'gafr2_u':'CFG_GAFR2_U_VAL',
+}
+
+# bit mappings
+
+bit_mappings = [
+
+{ 'gpio':(0,32),  'shift':1, 'regs':{'dir':'gpdr0', 'set':'gpsr0', 'clr':'gpcr0'} },
+{ 'gpio':(32,64), 'shift':1, 'regs':{'dir':'gpdr1', 'set':'gpsr1', 'clr':'gpcr1'} },
+{ 'gpio':(64,85), 'shift':1, 'regs':{'dir':'gpdr2', 'set':'gpsr2', 'clr':'gpcr2'} },
+{ 'gpio':(0,16),  'shift':2, 'regs':{'alt':'gafr0_l'} },
+{ 'gpio':(16,32), 'shift':2, 'regs':{'alt':'gafr0_u'} },
+{ 'gpio':(32,48), 'shift':2, 'regs':{'alt':'gafr1_l'} },
+{ 'gpio':(48,64), 'shift':2, 'regs':{'alt':'gafr1_u'} },
+{ 'gpio':(64,80), 'shift':2, 'regs':{'alt':'gafr2_l'} },
+{ 'gpio':(80,85), 'shift':2, 'regs':{'alt':'gafr2_u'} },
+
+]
+
+def stuff_bits(bit_mapping, gpio_list):
+	gpios = range( bit_mapping['gpio'][0], bit_mapping['gpio'][1])
+
+	for gpio in gpios:
+		for reg in bit_mapping['regs'].keys():
+			value = eval( 'gpio_list[gpio].%s' % (reg) )
+			if ( value ):
+				# we have a high bit
+				bit_shift = (gpio - bit_mapping['gpio'][0]) * bit_mapping['shift']
+				bit = value << (bit_shift)
+				pxa_regs[bit_mapping['regs'][reg]] |= bit
+
+for i in bit_mappings:
+	stuff_bits(i, gpio_list)
+
+# now print out all regs
+registers = pxa_regs.keys()
+registers.sort()
+for reg in registers:
+	print '%s: 0x%x' % (reg, pxa_regs[reg])
+
+# print define to past right into U-Boot source code
+
+print 
+print 
+
+for reg in registers:
+	print '#define %s	0x%x' % (uboot_reg_names[reg], pxa_regs[reg])
+
+# print all GPIOS
+print
+print
+
+for i in range(len(gpio_list)):
+	gpio_i = gpio_list[i]
+	alt_func_desc = pxa255_alt_func[i][gpio_i.alt]
+	print 'GPIO: %i, dir=%i, set=%i, clr=%i, alt=%s, desc=%s' % (i, gpio_i.dir, gpio_i.set, gpio_i.clr, alt_func_desc, gpio_i.desc)
+
+
diff --git a/board/pxa255_idp/u-boot.lds b/board/pxa255_idp/u-boot.lds
new file mode 100644
index 0000000000..20ce108938
--- /dev/null
+++ b/board/pxa255_idp/u-boot.lds
@@ -0,0 +1,55 @@
+/*
+ * (C) Copyright 2000-2005
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
+OUTPUT_ARCH(arm)
+ENTRY(_start)
+SECTIONS
+{
+	. = 0x00000000;
+
+	. = ALIGN(4);
+	.text      :
+	{
+	  cpu/pxa/start.o	(.text)
+	  *(.text)
+	}
+
+	. = ALIGN(4);
+	.rodata : { *(.rodata) }
+
+	. = ALIGN(4);
+	.data : { *(.data) }
+
+	. = ALIGN(4);
+	.got : { *(.got) }
+
+	__u_boot_cmd_start = .;
+	.u_boot_cmd : { *(.u_boot_cmd) }
+	__u_boot_cmd_end = .;
+
+	. = ALIGN(4);
+	__bss_start = .;
+	.bss : { *(.bss) }
+	_end = .;
+}