path: root/packages/uboot/u-boot-1.1.4/u-boot-base.patch

--- a/MAKEALL
+++ a/MAKEALL
@@ -146,8 +146,8 @@
 
 LIST_pxa="	\
 	adsvix		cerf250		cradle		csb226		\
-	innokom		lubbock		pxa255_idp	wepep250	\
-	xaeniax		xm250		xsengine			\
+	gumstix		innokom		lubbock		pxa255_idp	\
+	wepep250	xaeniax		xm250		xsengine	\
 "
 
 LIST_ixp="ixdp425"
--- a/Makefile
+++ a/Makefile
@@ -121,7 +121,6 @@
 # The "tools" are needed early, so put this first
 # Don't include stuff already done in $(LIBS)
 SUBDIRS	= tools \
-	  examples \
 	  post \
 	  post/cpu
 .PHONY : $(SUBDIRS)
@@ -1078,6 +1077,9 @@
 csb226_config	:	unconfig
 	@./mkconfig $(@:_config=) arm pxa csb226
 
+gumstix_config	:	unconfig
+	@./mkconfig $(@:_config=) arm pxa gumstix
+
 innokom_config	:	unconfig
 	@./mkconfig $(@:_config=) arm pxa innokom
 
--- a/board/gumstix/Makefile
+++ a/board/gumstix/Makefile
@@ -0,0 +1,47 @@
+#
+# (C) Copyright 2004
+# Craig Hughes, Gumstix Inc, <craig@gumstix.com>
+#
+# 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	:= gumstix.o
+SOBJS	:= memsetup.o
+
+$(LIB):	$(OBJS) $(SOBJS)
+	$(AR) crv $@ $^
+
+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) > $@
+
+-include .depend
+
+#########################################################################
--- a/board/gumstix/config.mk
+++ a/board/gumstix/config.mk
@@ -0,0 +1,13 @@
+#
+# This is config used for compilation of Gumstix sources
+#
+# You might change location of U-Boot in memory by setting right TEXT_BASE.
+# This allows for example having one copy located at the end of ram and stored
+# in flash device and later on while developing use other location to test
+# the code in RAM device only.
+#
+
+TEXT_BASE  = 0xA3F00000
+ifeq ($(GUMSTIX_400MHZ),y)
+	PLATFORM_CPPFLAGS += -DCONFIG_GUMSTIX_CPUSPEED_400
+endif
--- a/board/gumstix/early_refresh.S
+++ a/board/gumstix/early_refresh.S
@@ -0,0 +1,50 @@
+#define COTULLA_CP15_B1_VAL	0x69052903
+             /*  Workaround for early termination of SDRAM autorefresh on exit from 
+                 processor's sleep state in B1 stepping of XPA250/210. (sighting 27004) 
+	             Need first forced refresh within 8 usec.
+             
+                 - Code snippet received from validation team, slightly modified
+             
+               Notes: - MMU assumed to be inactive at this time, so use physical addresses
+                      -  Eboot didn't boot on A1 stepping without the leading exclusion,
+                         so the core code must be restricted to B1 only.
+             */
+             
+             	mrc	p15, 0, r9, c0, c0, 0		@ Grab CPU ID
+             	ldr	r3, =COTULLA_CP15_B1_VAL	@ Load the B1 CPU ID value
+             	cmp	r9, r3
+             	bne	EARLY_REFRESH_DONE
+             
+             	@ Eboot loads BIN image into RAM,
+             	@ turns off the MMU and then jumps here.
+             	@ If we're already executing from RAM, don't mess with it
+             
+		mov	r0, #0x400000		@ Just at the end of boot device addressing space
+		cmp	r0, pc			@ Are we executing from boot flash space?
+		bls	EARLY_REFRESH_DONE	@ if outside that space, skip this.
+
+
+		/*
+			Need to set MDREFR:DRI field to 0 for this to work.  Side effect is
+			picking the MEMCLK:SDCLK ratio.  The specified value (0x038FF000)
+       	    sets that ratio as 2:1.
+			This corresponds to the defaults after reset, including sleep reset.
+	 		0x038ff000  ==	MDREFR_K2FREE | MDREFR_K1FREE | MDREFR_K0FREE |
+        	     			MDREFR_K2DB2 | MDREFR_K2RUN |
+							MDREFR_K1DB2 | MDREFR_K1RUN | MDREFR_E1PIN |
+							MDREFR_K0DB2 | MDREFR_K0RUN | MDREFR_E0PIN
+		*/
+
+				ldr	r0, =0X48000004 			@ Memory controller base physical addr+ REFR Offset.
+				mov	r1, #0x03800000
+ 				orr	r1, r1, #0x000FF000
+             	str	r1, [r0]
+             
+             	mov	r0, #CFG_DRAM_BASE
+             	ldr	r1, [r0]				@ CAUSES the 1st row refresh to all partitions
+             	mov	r2, #0x2000				@ 8k loo
+1:	
+             	ldr	r1, [r0]				@ CAUSES a row refresh to all partitions
+             	subs	r2, r2, #0x1
+             	bpl	1b						@ while >= 0
+EARLY_REFRESH_DONE:
--- a/board/gumstix/gumstix.c
+++ a/board/gumstix/gumstix.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2004 Gumstix, Inc.
+ *
+ * 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
+ *
+ * Written by Craig Hughes <craig@gumstix.com>
+ *
+ */
+
+#include <common.h>
+#include <asm/arch/pxa-regs.h>
+
+int board_init( void ){
+  DECLARE_GLOBAL_DATA_PTR;
+
+  gd->bd->bi_arch_number = 373;	
+  gd->bd->bi_boot_params = 0xa0000100;
+
+  PSSR    = 0x20;
+
+  GPDR1 = CFG_GPDR1_VAL;
+  GAFR1_L = CFG_GAFR1_L_VAL;
+
+  return 0;
+}
+
+int dram_init( void ){
+  DECLARE_GLOBAL_DATA_PTR;
+
+#if ( CONFIG_NR_DRAM_BANKS > 0 )
+  gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+  gd->bd->bi_dram[0].size  = PHYS_SDRAM_1_SIZE;
+#endif
+#if ( CONFIG_NR_DRAM_BANKS > 1 )  
+  gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
+  gd->bd->bi_dram[1].size  = PHYS_SDRAM_2_SIZE;
+#endif
+#if ( CONFIG_NR_DRAM_BANKS > 2 )  
+  gd->bd->bi_dram[2].start = PHYS_SDRAM_3;
+  gd->bd->bi_dram[2].size  = PHYS_SDRAM_3_SIZE;
+#endif
+#if ( CONFIG_NR_DRAM_BANKS > 3 )
+  gd->bd->bi_dram[3].start = PHYS_SDRAM_4;
+  gd->bd->bi_dram[3].size  = PHYS_SDRAM_4_SIZE;
+#endif
+	
+  return 0;
+}
+
+extern flash_info_t flash_info[];       /* info for FLASH chips */
+
+static u8 system_serial[8];
+
+void get_board_serial(struct tag_serialnr *serialnr)
+{
+	serialnr->high = (system_serial[0]<<24) + (system_serial[1]<<16) + (system_serial[2]<<8) + system_serial[3];
+	serialnr->low  = (system_serial[4]<<24) + (system_serial[5]<<16) + (system_serial[6]<<8) + system_serial[7];
+}
+
+/*
+ * This hash function converts a structured 64-bit number to an unstructured, more bit-random 64-bit number.
+ * The purpose is to provide more randomness for each bit of the system serial number, since we're going to
+ * be using some of its bits (by extraction) as the varying part of an ethernet MAC.  So more random bits =
+ * less chance of collision
+ *
+ * The has algorithm is basically going to work by looping through each bit in the incoming number.  If that bit
+ * is set, then we'll XOR our result with a bitmask; if not, then we leave the result and continue the loop.
+ * Each time through the loop, we rotate the bitmask by one bit position, so that each bit of the incoming number
+ * will affect half of the bits of the result, but which bits it modifies are unique to that incoming bit position
+ */
+void gumstix_serial_hash(u8 *buf)
+{
+	unsigned int bit_number,byte;
+	// Starting bitmask is 0b0101001100001111000000001111111100000000000000001111111111111111
+	u8 xor_mask[] = { 0x53, 0x0F, 0x00, 0xFF, 0x00, 0x00, 0xFF, 0xFF };
+
+	u8 result[8];
+
+	// Loop through all 64 bits
+	for(bit_number=0; bit_number<64; bit_number++)
+	{
+		// If the given bit is set in the incoming buffer
+		if(buf[bit_number/8] & (1 << (bit_number % 8)))
+		{
+			// XOR the masked bits of the result
+			for(byte=0;byte<8;byte++) result[byte] ^= xor_mask[byte];
+		}
+
+		// Now rotate the bitmask
+		for(byte=0;byte<8;byte++)
+		{
+			// Shift the byte up by one bit
+			xor_mask[byte] = xor_mask[byte]<<1;
+			// Take the most significant bit of the previous byte and tack that on the bottom
+			// Special case for byte==0 when we take the MSB of the top byte instead
+			xor_mask[byte] |= xor_mask[(byte == 0 ? 7 : byte-1)]>>7;
+		}
+	}
+
+	// Copy result out
+	for(byte=0;byte<8;byte++) buf[byte]=result[byte];
+}
+
+int misc_init_r(void)
+{
+	unsigned char serial[17];
+
+	flash_read_user_serial(flash_info, (void *)system_serial, 0, 8);
+	if(0xff == (system_serial[0] & system_serial[1] & system_serial[2] & system_serial[3] &
+		system_serial[4] & system_serial[5] & system_serial[6] & system_serial[7]))
+	{
+		// User serial number is all ones, so use the factory serial number
+		flash_read_factory_serial(flash_info, (void *)system_serial, 0, 8);
+		gumstix_serial_hash(system_serial);
+	}
+
+	sprintf(serial,"%02lX%02lX%02lX%02lX%02lX%02lX%02lX%02lX",system_serial[0],system_serial[1],system_serial[2],system_serial[3],
+								system_serial[4],system_serial[5],system_serial[6],system_serial[7]);
+
+	setenv("serial#",serial);
+}
--- a/board/gumstix/memsetup.S
+++ a/board/gumstix/memsetup.S
@@ -0,0 +1,229 @@
+#include <config.h>
+#include <version.h>
+#include <asm/arch/pxa-regs.h>
+
+
+.macro CPWAIT
+	mrc	 p15,0,r0,c2,c0,0
+	mov	 r0,r0
+	sub	 pc,pc,#4
+.endm
+
+
+.globl lowlevel_init
+lowlevel_init:
+
+
+	cmp	pc, #0xa0000000			/** test if we're in SDRAM		**/
+	bhi	end_of_memsetup			/** if we are, then jump		**/
+
+	/* First, setup GPIOs */
+
+	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
+	ldr		r1,	=CFG_PSSR_VAL
+	str		r1,	[r0]
+		
+	
+	/* The procedure below uses sample code generated by the Intel PXA250 Memory
+	 * Configuration Tool [http://appzone.intel.com/pcg/pxa250/memory/] which has
+	 * then been modified manually while following the documentation in
+	 * "Intel PXA255 Process Developer's Manual" [order #278693-002] 
+	 * Chapter 6.11 - Hardware, Watchdog, or Sleep Reset Operation */
+
+	/* Step 1: After hardware reset, complete a power-on wait of 200us to allow clocks to stabilize */
+
+	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 */
+10:
+	ldr	r2, [r3]
+	cmp	r4, r2
+	bgt	10b
+
+	/* Step 1a: Write MSC0, MSC1, MSC2 */
+	ldr	r3, =MSC0		/* Configures /CS0 and /CS1 */
+	ldr	r2, =0x128C26AB		/* Generated value */
+	str	r2, [r3]
+	ldr	r2, [r3]		/* the MSC register should be read after it is written with */
+					/* a new value before an access to the memory is attempted. */
+					/* (see MSC section of manual) */
+	ldr	r3, =MSC1		/* /CS2 and /CS3 */
+	ldr	r2, =0x0000128C		/* Generated value */
+	str	r2, [r3]
+	ldr	r2, [r3]
+
+	/* Step 1b: Write MECR, MCMEM0, MCMEM1, MCATT0, MCATT1, MCIO0, MCIO1 (Skip on gumstix) */
+	/* Step 1c: Write MDREFR:K0RUN and MDREFR:E0PIN. Configure MDREFR:K0DB2. Retain
+	 *          the current values of MDREFR:APD and MDREFR:SLFRSH. MDREFR:DRI must
+	 *          contain a valid value. Deassert MDREFR:KxFREE. (Skip on gumstix) */
+
+	ldr	r3, =MDREFR
+	ldr	r2, [r3]		/* read MDREFR value */
+
+	ldr	r1, =0xfff
+	bic	r2, r2, r1		/* Clear DRI -- INTEL TOOL LEAVES THIS STEP OUT!! */
+	orr	r2, r2, #0x018		/* configure a valid SDRAM Refresh Interval (DRI) */
+	str	r2, [r3]
+
+	/* Step 2: Configure Synchronous Static memory (Skip on gumstix) */
+
+	/* Step 4: In systems that contain SDRAM, transition the SDRAM controller through the following state sequence:
+	 *         a. self-refresh
+	 *         b. power-down
+	 *         c. PWRDNX
+	 *         d. NOP */
+
+	orr	r2, r2, #0x00010000	/* assert K1RUN for SDCLK1 */
+	bic	r2, r2, #0x000A4000	/* clear K0DB2, K1DB2 and K2DB2 */
+	str	r2, [r3]		/* change from "self-refresh and clock-stop" to "self-refresh" state */
+
+	bic	r2, r2, #0x00400000	/* clear SLFRSH bit field */
+	str	r2, [r3]		/* change from "self-refresh" to "Power-down" state */
+
+	orr	r2, r2, #0x00008000	/* set the E1PIN bit field */
+	str	r2, [r3]		/* change from "Power-down" to "PWRDNX" state */
+
+	nop	/* no action is required to change from "PWRDNX" to "NOP" state */
+
+	/* Step 4f: Write MDCNFG (with enable bits deasserted), MDCNFG:DE3:2,1:0 set to 0. */
+
+	ldr	r3, =MDCNFG		/* Load the SDRAM Configuration register. Must not be enabled yet. */
+	ldr	r2, =0x000019C8		/* Value from Intel tool */
+	str	r2, [r3]		/* Write to MDCNFG register */
+
+	/* Step 5: For systems that contain SDRAM, wait a specified NOP power-up waiting period required by
+	 * the SDRAMs to ensure the SDRAMs receive a stable clock with a NOP condition */
+
+	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 */
+20:
+	ldr	r2, [r3] 
+	cmp	r4, r2
+	bgt	20b 
+
+	/* Step 6: Ensure the data cache is disabled -- should not be needed out of reset, but best to be safe*/
+
+	mov	r0, #0x78		/* turn everything off */
+	mcr	p15, 0, r0, c1, c0, 0	/* caches off, MMU off, etc. */
+
+	CPWAIT				/* wait for co-processor */
+
+	/* Step 7: On a hardware reset in systems that contain SDRAM, trigger the specified number (typically
+		eight) of refresh cycles by attempting non-burst read or write accesses to any disabled
+		SDRAM bank. Each such access causes a simultaneous CBR refresh cycles for all four banks,
+		which causes a pass through the CBR state and back to NOP. On the first pass, the PALL state
+		occurs before the CBR state. */
+
+	ldr	r3, =PHYS_SDRAM_1
+	mov	r2, #9	/* now must do 9 (!) refresh or CBR commands before the first access */
+CBR_refresh1:
+	str	r2, [r3]
+	subs	r2, r2, #1 
+	bne	CBR_refresh1 
+
+	/* Step 8: Can re-enable DCACHE if it was disabled above (Skip on gumstix) */
+
+	/* Step 9: Enable SDRAM partitions */
+
+	ldr	r3, =MDCNFG		/* sdram config -- sdram enable */
+	ldr	r2, [r3] 
+	orr	r2, r2, #0x00000001	/* enable partition 0 only */
+	str	r2, [r3]		/* write to MDCNFG */
+
+	/* Step 10: In systems containing SDRAM, write the MDMRS register to trigger an MRS command to all
+	 * enabled banks of SDRAM. For each SDRAM partition pair that has one or both partitions
+	 * enabled, this forces a pass through the MRS state and back to NOP. The CAS latency must be
+	 * the only variable option and is derived from the value programmed in the
+	 * MDCNFG:MDTC0,2 fields. The burst type is programmed to sequential and the length is set
+	 * to four. */
+
+	ldr	r3, =MDMRS		/* write the MDMRS */
+	ldr	r2, =0x00020022		/* the writable bits will be written as a 0 */
+	str	r2, [r3]
+
+	/* Step 11: (optional) Enable auto-power-down */
+
+	ldr	r3, =MDREFR		/* enable auto-power-down */
+	ldr	r2, [r3] 
+	orr	r2, r2, #0x00100000	/* set the APD bit */
+	str	r2, [r3]		/* write to MDREFR */
+
+	/* 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							*/
+
+end_of_memsetup:
+	mov	pc, lr
+
--- a/board/gumstix/u-boot.lds
+++ a/board/gumstix/u-boot.lds
@@ -0,0 +1,55 @@
+/*
+ * (C) Copyright 2004
+ * Craig Hughes, Gumstix Inc, <craig@gumstix.com>
+ *
+ * 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)
+	  board/gumstix/memsetup.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 = .;
+}
--- a/cpu/pxa/start.S
+++ a/cpu/pxa/start.S
@@ -91,6 +91,7 @@
 	.word 0x0badc0de
 #endif
 
+.space 0x800		/* JTAG install interrupt vectors over low memory in instruction cache */
 
 /****************************************************************************/
 /*									    */
@@ -104,6 +105,37 @@
 	orr	r0,r0,#0x13
 	msr	cpsr,r0
 
+/* This special code just unprotects all of flash, then erases it */
+//	mov	r0, #0x1f		/* Loop over all blocks 0x1f-0x00*/
+//flash_wipe_main_loop:
+//	mov	r1, r0, LSL #0x11	/* Convert bank number to start address */
+//	mov	r2, #0x60		/* Clear lock bit setup */
+//	strh	r2, [r1]
+//	nop
+//	mov	r2, #0xd0		/* Clear lock bits confirm */
+//	strh	r2, [r1]
+//	nop
+//flash_clear_wait_loop:
+//	ldrh	r2, [r1]
+//	tst	r2, #0x80		/* Check SR.7 */
+//	bne	flash_clear_wait_loop
+//
+//	mov	r2, #0x20		/* Block erase command */
+//	strh	r2, [r1]
+//	nop
+//	mov	r2, #0xd0		/* Block erase confirm */
+//	strh	r2, [r1]
+//	nop
+//flash_erase_wait_loop:
+//	ldrh	r2, [r1]
+//	tst	r2, #0x80
+//	bne	flash_clear_wait_loop
+//
+//	teq	r0, #0
+//	subne	r0, r0, #1
+//	bne	flash_wipe_main_loop
+/* End of flash-nuking code */
+
 	/*
 	 * we do sys-critical inits only at reboot,
 	 * not when booting from ram!
@@ -113,7 +145,7 @@
 #endif
 
 relocate:				/* relocate U-Boot to RAM	    */
-	adr	r0, _start		/* r0 <- current position of code   */
+	adrl	r0, _start		/* r0 <- current position of code   */
 	ldr	r1, _TEXT_BASE		/* test if we run from flash or RAM */
 	cmp     r0, r1                  /* don't reloc during debug         */
 	beq     stack_setup
--- a/include/configs/gumstix.h
+++ a/include/configs/gumstix.h
@@ -0,0 +1,259 @@
+/* 
+ * Copyright (C) 2004 Gumstix, Inc.
+**
+**   Gumstix u-boot 1.1.1
+ *
+ * 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
+ *
+ * Written by Craig Hughes <craig@gumstix.com> 2004
+ *
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#define CONFIG_PXA250		/* this is an PXA250 CPU	*/
+#define CONFIG_GUMSTIX		/* config for gumstix board	*/
+#undef  CONFIG_USE_IRQ		/* don't need use IRQ/FIQ	*/
+#ifndef __LITTLE_ENDIAN
+#define __LITTLE_ENDIAN 1234	/* For some reason this is not defined */
+#endif
+
+/*
+ * Select serial console configuration FFUART is default on G dev board
+ */
+
+#define CONFIG_FFUART
+#define CONFIG_BAUDRATE		115200
+#define CONFIG_SILENT_CONSOLE
+
+/*
+ * Definition of u-boot build in commands. Check out CONFIG_CMD_DFL if
+ * neccessary in include/cmd_confdefs.h file. (Un)comment for getting
+ * functionality or size of u-boot code.
+ */
+
+#define CONFIG_COMMANDS	(  CONFIG_CMD_DFL	\
+			& ~CFG_CMD_CDP		\
+			& ~CFG_CMD_IDE		\
+				& ~CFG_CMD_IMLS		\
+			& ~CFG_CMD_IRQ		\
+			& ~CFG_CMD_PCMCIA	\
+			& ~CFG_CMD_SETGETDCR	\
+			| CFG_CMD_AUTOSCRIPT	\
+			| CFG_CMD_BDI		\
+			| CFG_CMD_BOOTD 	\
+			| CFG_CMD_CACHE 	\
+			| CFG_CMD_CONSOLE	\
+				| CFG_CMD_DHCP		\
+			| CFG_CMD_DIAG		\
+			| CFG_CMD_ECHO		\
+			| CFG_CMD_ELF		\
+			| CFG_CMD_ENV		\
+				| CFG_CMD_FAT		\
+			| CFG_CMD_FLASH		\
+			| CFG_CMD_IMI		\
+			| CFG_CMD_ITEST 	\
+				| CFG_CMD_JFFS2 	\
+			| CFG_CMD_LOADB		\
+			| CFG_CMD_LOADS 	\
+			| CFG_CMD_MEMORY	\
+			| CFG_CMD_MISC		\
+			| CFG_CMD_MMC		\
+			| CFG_CMD_NET 		\
+			| CFG_CMD_NFS		\
+			| CFG_CMD_PING		\
+			| CFG_CMD_REGINFO	\
+			| CFG_CMD_RUN		\
+			| CFG_CMD_SAVES		\
+			| CFG_CMD_SDRAM		\
+				)
+
+
+#define CONFIG_NETCONSOLE
+#define CONFIG_NET_MULTI
+
+#define CFG_DEVICE_NULLDEV
+
+#include <cmd_confdefs.h>
+
+/*
+ * Boot options. Setting delay to -1 stops autostart count down.
+ * NOTE: Sending parameters to kernel depends on kernel version and
+ * 2.4.19-rmk6-pxa1 patch used while my u-boot coding didn't accept 
+ * parameters at all! Do not get confused by them so.
+*/
+
+#define CONFIG_IDENT_STRING	"\n\n*** Welcome to Gumstix ***"
+#define CONFIG_MISC_INIT_R	/* misc_init_r function in gumstix sets board serial number */
+
+#define CONFIG_BOOTFILE		boot/uImage
+#define CONFIG_BOOTARGS		"console=ttyS0,115200n8 root=1f01 rootfstype=jffs2 reboot=cold,hard"
+#define CONFIG_BOOTCOMMAND	"icache on;setenv stderr nulldev; setenv stdout nulldev; if mmcinit && fatload mmc 0 a2000000 gumstix-factory.script; then setenv stdout serial; setenv stderr serial; echo Found gumstix-factory script...; autoscr; else setenv stdout serial;setenv stderr serial;fsload && bootm; fi"
+#define CONFIG_BOOTDELAY	2		/* in seconds */
+#define CONFIG_EXTRA_ENV_SETTINGS	"verify=no"
+#define CFG_HUSH_PARSER
+#define CFG_AUTO_COMPLETE
+#define CFG_PROMPT_HUSH_PS2	"> "
+
+/*
+ * General options for u-boot. Modify to save memory foot print
+ */
+
+#define CFG_LONGHELP				/* undef saves memory		*/
+#define CFG_PROMPT		"GUM> "		/* prompt string		*/
+#define CFG_CBSIZE		512		/* console I/O buffer		*/
+#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16)	/* print buffer size	*/
+#define CFG_MAXARGS		16		/* max command args		*/
+#define CFG_BARGSIZE		CFG_CBSIZE	/* boot args buf size		*/
+
+#define CONFIG_CRC32_VERIFY
+#define CONFIG_LOOPW
+#define CONFIG_MX_CYCLIC
+
+/*
+ *  * SMSC91C111 Network Card
+ *   */
+#define CONFIG_DRIVER_SMC91111          1
+#define CONFIG_SMC91111_BASE            0x04000300 /* chip select 1         */
+#undef  CONFIG_SMC_USE_32_BIT                      /* 16 bit bus access     */
+#undef  CONFIG_SMC_91111_EXT_PHY                   /* we use internal phy   */
+#undef  CONFIG_SHOW_ACTIVITY
+#define CONFIG_NET_RETRY_COUNT          10         /* # of retries          */
+#define CONFIG_ETHPRIME		"SMC91C1111-0"
+#define CONFIG_ETHADDR          00:0A:95:A5:47:3A
+
+
+#define CFG_MEMTEST_START	0xa1000000	/* memtest test area		*/
+#define CFG_MEMTEST_END		0xa2000000
+
+
+#undef  CFG_CLKS_IN_HZ				/* use HZ for freq. display	*/
+#define CFG_HZ			3686400		/* incrementer freq: 3.6864 MHz	*/
+#ifdef CONFIG_GUMSTIX_CPUSPEED_400
+#define CFG_CPUSPEED		0x161		/* 0x161 == 400MHz, 0x141 ==200MHz */
+#else
+#define CFG_CPUSPEED		0x141
+#endif
+#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200, 230400 }
+
+#define CFG_CONSOLE_INFO_QUIET
+
+/*
+ * Definitions related to passing arguments to kernel.
+ */
+#define CONFIG_CMDLINE_TAG		/* send commandline to Kernel		*/
+#define CONFIG_SETUP_MEMORY_TAGS	/* send memory definition to kernel	*/
+#define CONFIG_INITRD_TAG		/* send initrd params			*/
+#define CONFIG_SERIAL_TAG		/* send serialnr from flash 		*/
+#undef  CONFIG_VFD			/* do not send framebuffer setup	*/
+
+/*
+ * SDRAM Memory Map
+ */
+#define CONFIG_NR_DRAM_BANKS	1		/* we have 1 bank of SDRAM	*/
+#define PHYS_SDRAM_1		0xa0000000	/* SDRAM bank #1		*/
+#define PHYS_SDRAM_1_SIZE	0x04000000	/* 64 MB ( 2 chip )		*/
+
+#define CFG_DRAM_BASE		PHYS_SDRAM_1
+#define CFG_DRAM_SIZE		PHYS_SDRAM_1_SIZE
+
+/*
+ * Configuration for FLASH memory
+ */
+#define PHYS_FLASH_1		0x00000000	/* Flash Bank #1 */
+#define PHYS_FLASH_SECT_SIZE	0x00020000	/* 128 KB sectors */
+
+#define CFG_FLASH_BASE		PHYS_FLASH_1
+#define CFG_FLASH_CFI				/* flash is CFI conformant	*/
+#define CFG_FLASH_CFI_DRIVER			/* use common cfi driver	*/
+#define CFG_FLASH_USE_BUFFER_WRITE 1		/* use buffered writes (20x faster) */
+#define CFG_MAX_FLASH_BANKS	1		/* max # of memory banks	*/
+#define CFG_MAX_FLASH_SECT	256		/* max # of sectors on one chip	*/
+#define CFG_FLASH_PROTECTION			/* use hardware flash protection */
+
+#define CFG_ENV_IS_IN_FLASH
+#define CFG_ENV_SIZE		0x1000		/* 4kB */
+#define CFG_ENV_SECT_SIZE	PHYS_FLASH_SECT_SIZE
+#define CFG_ENV_ADDR		((CFG_FLASH_BASE + CFG_ENV_SECT_SIZE*2) - CFG_ENV_SIZE)
+
+/*
+ * Malloc pool need to host env + 128 Kb reserve for other allocations.
+ */
+#define CFG_MALLOC_LEN		(CFG_ENV_SIZE + (128<<10) )
+#define CONFIG_STACKSIZE	(120<<10)	/* stack size */
+#define CFG_GBL_DATA_SIZE	512		/* num bytes initial data       */
+
+/*
+ * This is setting for JFFS2 support in u-boot.
+ * Right now there is no gain for user, but later on booting kernel might be
+ * possible. Consider using XIP kernel running from flash to save RAM
+ * footprint.
+ * NOTE: Enable CFG_CMD_JFFS2 for JFFS2 support.
+ */
+
+#define CFG_JFFS2_FIRST_BANK	0
+#define CFG_JFFS2_FIRST_SECTOR	2
+#define CFG_JFFS2_NUM_BANKS	1
+
+#define CONFIG_MMC		1
+#define CFG_MMC_BASE		0xF0000000
+#define CONFIG_DOS_PARTITION
+
+/*
+ * Environment setup. Definitions of monitor location and size with
+ * definition of environment setup ends up in 2 possibilities.
+ * 1. Embedded environment - in u-boot code is space for environment
+ * 2. Environment is read from predefined sector of flash
+ * Right now we support 2. possiblity, but expecting no env placed
+ * on mentioned address right now. This also needs to provide whole
+ * sector for it - for us 256Kb is really waste of memory. U-boot uses
+ * default env. and until kernel parameters could be sent to kernel
+ * env. has no sense to us.
+ */
+
+#define CFG_MONITOR_BASE	CFG_FLASH_BASE
+#define CFG_MONITOR_LEN		(PHYS_FLASH_SECT_SIZE*2 - CFG_ENV_SIZE)
+
+#define CFG_GPSR0_VAL		0xFFFFFFFF
+#define CFG_GPSR1_VAL		0xFFEFFFFF
+#define CFG_GPSR2_VAL		0xFFFEFFFF
+
+#define CFG_GPCR0_VAL		0x08022080
+#define CFG_GPCR1_VAL		0x00100000
+#define CFG_GPCR2_VAL		0x00010000
+
+#define CFG_GPDR0_VAL		0xC182B9F8
+#define CFG_GPDR1_VAL		0x0012AA80
+#define CFG_GPDR2_VAL		0x0001FFFF
+
+#define CFG_GAFR0_L_VAL		0x81011000
+#define CFG_GAFR0_U_VAL		0xA5254010
+#define CFG_GAFR1_L_VAL		0x69908010
+#define CFG_GAFR1_U_VAL		0xAAA5A8AA
+#define CFG_GAFR2_L_VAL		0xAAAAAAAA
+#define CFG_GAFR2_U_VAL		0x00000000
+
+#define CFG_PSSR_VAL		0x20
+
+/*
+ * Well this has to be defined, but on the other hand it is used differently
+ * one may expect. For instance loadb command do not cares :-)
+ * So advice is - do not rely on this...
+ */
+
+#define CFG_LOAD_ADDR		0xA2000000
+#endif  /* __CONFIG_H */
--- a/lib_arm/board.c
+++ a/lib_arm/board.c
@@ -200,10 +200,10 @@
 	NULL,
 };
 
+DECLARE_GLOBAL_DATA_PTR;
+
 void start_armboot (void)
 {
-	DECLARE_GLOBAL_DATA_PTR;
-
 	ulong size;
 	init_fnc_t **init_fnc_ptr;
 	char *s;