Forgot to add files to zylonite branch.

board/zylonite/Makefile

+
+#
+# (C) Copyright 2000
+# 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	:= zylonite.o flash.o
+SOBJS	:= lowlevel_init.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
+
+#########################################################################

board/zylonite/config.mk

+#TEXT_BASE = 0x0
+#TEXT_BASE = 0xa1700000
+#TEXT_BASE = 0xa3080000
+TEXT_BASE = 0xa3008000

board/zylonite/flash.c

+/*
+ * (C) Copyright 2001
+ * Kyle Harris, Nexus Technologies, Inc. kharris@nexus-tech.net
+ *
+ * (C) Copyright 2001
+ * 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 <common.h>
+#include <linux/byteorder/swab.h>
+
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];	/* info for FLASH chips    */
+
+/* Board support for 1 or 2 flash devices */
+#define FLASH_PORT_WIDTH32
+#undef FLASH_PORT_WIDTH16
+
+#ifdef FLASH_PORT_WIDTH16
+#define FLASH_PORT_WIDTH		ushort
+#define FLASH_PORT_WIDTHV		vu_short
+#define SWAP(x)               __swab16(x)
+#else
+#define FLASH_PORT_WIDTH		ulong
+#define FLASH_PORT_WIDTHV		vu_long
+#define SWAP(x)               __swab32(x)
+#endif
+
+#define FPW	   FLASH_PORT_WIDTH
+#define FPWV   FLASH_PORT_WIDTHV
+
+#define mb() __asm__ __volatile__ ("" : : : "memory")
+
+/*-----------------------------------------------------------------------
+ * Functions
+ */
+static ulong flash_get_size (FPW *addr, flash_info_t *info);
+static int write_data (flash_info_t *info, ulong dest, FPW data);
+static void flash_get_offsets (ulong base, flash_info_t *info);
+void inline spin_wheel (void);
+
+/*-----------------------------------------------------------------------
+ */
+
+unsigned long flash_init (void)
+{
+	int i;
+	ulong size = 0;
+
+	for (i = 0; i < CFG_MAX_FLASH_BANKS; i++) {
+		switch (i) {
+		case 0:
+			flash_get_size ((FPW *) PHYS_FLASH_1, &flash_info[i]);
+			flash_get_offsets (PHYS_FLASH_1, &flash_info[i]);
+			break;
+		case 1:
+			flash_get_size ((FPW *) PHYS_FLASH_2, &flash_info[i]);
+			flash_get_offsets (PHYS_FLASH_2, &flash_info[i]);
+			break;
+		default:
+			panic ("configured too many flash banks!\n");
+			break;
+		}
+		size += flash_info[i].size;
+	}
+
+	/* Protect monitor and environment sectors
+	 */
+	flash_protect ( FLAG_PROTECT_SET,
+			CFG_FLASH_BASE,
+			CFG_FLASH_BASE + monitor_flash_len - 1,
+			&flash_info[0] );
+
+	flash_protect ( FLAG_PROTECT_SET,
+			CFG_ENV_ADDR,
+			CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0] );
+
+	return size;
+}
+
+/*-----------------------------------------------------------------------
+ */
+static void flash_get_offsets (ulong base, flash_info_t *info)
+{
+	int i;
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		return;
+	}
+
+	if ((info->flash_id & FLASH_VENDMASK) == FLASH_MAN_INTEL) {
+		for (i = 0; i < info->sector_count; i++) {
+			info->start[i] = base + (i * PHYS_FLASH_SECT_SIZE);
+			info->protect[i] = 0;
+		}
+	}
+}
+
+/*-----------------------------------------------------------------------
+ */
+void flash_print_info (flash_info_t *info)
+{
+	int i;
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		printf ("missing or unknown FLASH type\n");
+		return;
+	}
+
+	switch (info->flash_id & FLASH_VENDMASK) {
+	case FLASH_MAN_INTEL:
+		printf ("INTEL ");
+		break;
+	default:
+		printf ("Unknown Vendor ");
+		break;
+	}
+
+	switch (info->flash_id & FLASH_TYPEMASK) {
+	case FLASH_28F128J3A:
+		printf ("28F128J3A\n");
+		break;
+	default:
+		printf ("Unknown Chip Type\n");
+		break;
+	}
+
+	printf ("  Size: %ld MB in %d Sectors\n",
+			info->size >> 20, info->sector_count);
+
+	printf ("  Sector Start Addresses:");
+	for (i = 0; i < info->sector_count; ++i) {
+		if ((i % 5) == 0)
+			printf ("\n   ");
+		printf (" %08lX%s",
+			info->start[i],
+			info->protect[i] ? " (RO)" : "     ");
+	}
+	printf ("\n");
+	return;
+}
+
+/*
+ * The following code cannot be run from FLASH!
+ */
+static ulong flash_get_size (FPW *addr, flash_info_t *info)
+{
+	volatile FPW value;
+
+	/* Write auto select command: read Manufacturer ID */
+	addr[0x5555] = (FPW) 0x00AA00AA;
+	addr[0x2AAA] = (FPW) 0x00550055;
+	addr[0x5555] = (FPW) 0x00900090;
+
+	mb ();
+	value = addr[0];
+
+	switch (value) {
+
+	case (FPW) INTEL_MANUFACT:
+		info->flash_id = FLASH_MAN_INTEL;
+		break;
+
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		info->sector_count = 0;
+		info->size = 0;
+		addr[0] = (FPW) 0x00FF00FF;	/* restore read mode */
+		return (0);			/* no or unknown flash  */
+	}
+
+	mb ();
+	value = addr[1];			/* device ID        */
+
+	switch (value) {
+
+	case (FPW) INTEL_ID_28F128J3A:
+		info->flash_id += FLASH_28F128J3A;
+		info->sector_count = 128;
+		info->size = 0x02000000;
+		break;				/* => 16 MB     */
+
+	default:
+		info->flash_id = FLASH_UNKNOWN;
+		break;
+	}
+
+	if (info->sector_count > CFG_MAX_FLASH_SECT) {
+		printf ("** ERROR: sector count %d > max (%d) **\n",
+			info->sector_count, CFG_MAX_FLASH_SECT);
+		info->sector_count = CFG_MAX_FLASH_SECT;
+	}
+
+	addr[0] = (FPW) 0x00FF00FF;		/* restore read mode */
+
+	return (info->size);
+}
+
+
+/*-----------------------------------------------------------------------
+ */
+
+int flash_erase (flash_info_t *info, int s_first, int s_last)
+{
+	int flag, prot, sect;
+	ulong type, start, last;
+	int rcode = 0;
+
+	if ((s_first < 0) || (s_first > s_last)) {
+		if (info->flash_id == FLASH_UNKNOWN) {
+			printf ("- missing\n");
+		} else {
+			printf ("- no sectors to erase\n");
+		}
+		return 1;
+	}
+
+	type = (info->flash_id & FLASH_VENDMASK);
+	if ((type != FLASH_MAN_INTEL)) {
+		printf ("Can't erase unknown flash type %08lx - aborted\n",
+			info->flash_id);
+		return 1;
+	}
+
+	prot = 0;
+	for (sect = s_first; sect <= s_last; ++sect) {
+		if (info->protect[sect]) {
+			prot++;
+		}
+	}
+
+	if (prot) {
+		printf ("- Warning: %d protected sectors will not be erased!\n",
+			prot);
+	} else {
+		printf ("\n");
+	}
+
+	start = get_timer (0);
+	last = start;
+
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts ();
+
+	/* Start erase on unprotected sectors */
+	for (sect = s_first; sect <= s_last; sect++) {
+		if (info->protect[sect] == 0) {	/* not protected */
+			FPWV *addr = (FPWV *) (info->start[sect]);
+			FPW status;
+
+			printf ("Erasing sector %2d ... ", sect);
+
+			/* arm simple, non interrupt dependent timer */
+			reset_timer_masked ();
+
+			*addr = (FPW) 0x00500050;	/* clear status register */
+			*addr = (FPW) 0x00200020;	/* erase setup */
+			*addr = (FPW) 0x00D000D0;	/* erase confirm */
+
+			while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) {
+				if (get_timer_masked () > CFG_FLASH_ERASE_TOUT) {
+					printf ("Timeout\n");
+					*addr = (FPW) 0x00B000B0;	/* suspend erase     */
+					*addr = (FPW) 0x00FF00FF;	/* reset to read mode */
+					rcode = 1;
+					break;
+				}
+			}
+
+			*addr = 0x00500050;	/* clear status register cmd.   */
+			*addr = 0x00FF00FF;	/* resest to read mode          */
+
+			printf (" done\n");
+		}
+	}
+	return rcode;
+}
+
+/*-----------------------------------------------------------------------
+ * Copy memory to flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ * 4 - Flash not identified
+ */
+
+int write_buff (flash_info_t *info, uchar *src, ulong addr, ulong cnt)
+{
+	ulong cp, wp;
+	FPW data;
+	int count, i, l, rc, port_width;
+
+	if (info->flash_id == FLASH_UNKNOWN) {
+		return 4;
+	}
+/* get lower word aligned address */
+#ifdef FLASH_PORT_WIDTH16
+	wp = (addr & ~1);
+	port_width = 2;
+#else
+	wp = (addr & ~3);
+	port_width = 4;
+#endif
+
+	/*
+	 * handle unaligned start bytes
+	 */
+	if ((l = addr - wp) != 0) {
+		data = 0;
+		for (i = 0, cp = wp; i < l; ++i, ++cp) {
+			data = (data << 8) | (*(uchar *) cp);
+		}
+		for (; i < port_width && cnt > 0; ++i) {
+			data = (data << 8) | *src++;
+			--cnt;
+			++cp;
+		}
+		for (; cnt == 0 && i < port_width; ++i, ++cp) {
+			data = (data << 8) | (*(uchar *) cp);
+		}
+
+		if ((rc = write_data (info, wp, SWAP (data))) != 0) {
+			return (rc);
+		}
+		wp += port_width;
+	}
+
+	/*
+	 * handle word aligned part
+	 */
+	count = 0;
+	while (cnt >= port_width) {
+		data = 0;
+		for (i = 0; i < port_width; ++i) {
+			data = (data << 8) | *src++;
+		}
+		if ((rc = write_data (info, wp, SWAP (data))) != 0) {
+			return (rc);
+		}
+		wp += port_width;
+		cnt -= port_width;
+		if (count++ > 0x800) {
+			spin_wheel ();
+			count = 0;
+		}
+	}
+
+	if (cnt == 0) {
+		return (0);
+	}
+
+	/*
+	 * handle unaligned tail bytes
+	 */
+	data = 0;
+	for (i = 0, cp = wp; i < port_width && cnt > 0; ++i, ++cp) {
+		data = (data << 8) | *src++;
+		--cnt;
+	}
+	for (; i < port_width; ++i, ++cp) {
+		data = (data << 8) | (*(uchar *) cp);
+	}
+
+	return (write_data (info, wp, SWAP (data)));
+}
+
+/*-----------------------------------------------------------------------
+ * Write a word or halfword to Flash, returns:
+ * 0 - OK
+ * 1 - write timeout
+ * 2 - Flash not erased
+ */
+static int write_data (flash_info_t *info, ulong dest, FPW data)
+{
+	FPWV *addr = (FPWV *) dest;
+	ulong status;
+	int flag;
+
+	/* Check if Flash is (sufficiently) erased */
+	if ((*addr & data) != data) {
+		printf ("not erased at %08lx (%lx)\n", (ulong) addr, *addr);
+		return (2);
+	}
+	/* Disable interrupts which might cause a timeout here */
+	flag = disable_interrupts ();
+
+	*addr = (FPW) 0x00400040;	/* write setup */
+	*addr = data;
+
+	/* arm simple, non interrupt dependent timer */
+	reset_timer_masked ();
+
+	/* wait while polling the status register */
+	while (((status = *addr) & (FPW) 0x00800080) != (FPW) 0x00800080) {
+		if (get_timer_masked () > CFG_FLASH_WRITE_TOUT) {
+			*addr = (FPW) 0x00FF00FF;	/* restore read mode */
+			return (1);
+		}
+	}
+
+	*addr = (FPW) 0x00FF00FF;	/* restore read mode */
+
+	return (0);
+}
+
+void inline spin_wheel (void)
+{
+	static int p = 0;
+	static char w[] = "\\/-";
+
+	printf ("\010%c", w[p]);
+	(++p == 3) ? (p = 0) : 0;
+}

board/zylonite/lowlevel_init.S

+/*
+ * 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/lowlevel_init.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 lowlevel_init
+lowlevel_init:
+	/* Set up GPIO pins first ----------------------------------------- */
+	mov      r10, lr
+	
+        /*  GPIO41, 42, 43, 44, 45, 46, 47, 48 */
+	ldr             r0, =0x40E10438 @ GPIO41 FFRXD
+	ldr             r1, =0x802
+	str             r1, [r0]
+
+	ldr             r0, =0x40E1043C @ GPIO42 FFTXD
+	ldr             r1, =0x802
+	str             r1, [r0]
+
+	ldr             r0, =0x40E10440 @ GPIO43 FFCTS
+	ldr             r1, =0x802
+	str             r1, [r0]
+
+	ldr             r0, =0x40E10444 @ GPIO 44 FFDCD
+	ldr             r1, =0x802
+	str             r1, [r0]
+
+	ldr             r0, =0x40E10448 @ GPIO 45 FFDSR
+	ldr             r1, =0x802
+	str             r1, [r0]
+
+	ldr             r0, =0x40E1044C @ GPIO 46 FFRI
+	ldr             r1, =0x802
+	str             r1, [r0]
+
+	ldr             r0, =0x40E10450 @ GPIO 47 FFDTR
+	ldr             r1, =0x802
+	str             r1, [r0]
+
+	ldr             r0, =0x40E10454 @ GPIO 48
+	ldr             r1, =0x802
+	str             r1, [r0]
+
+        /* tebrandt - ASCR, clear the RDH bit */
+	ldr             r0, =ASCR
+	ldr             r1, [r0]
+	bic             r1, r1, #0x80000000
+	str             r1, [r0]
+	
+	/* ---------------------------------------------------------------- */
+	/* 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:
+
+	/* configure the MEMCLKCFG register */
+        ldr             r1, =MEMCLKCFG
+        ldr             r2, =0x00010001
+        str             r2, [r1]             @ WRITE
+        ldr             r2, [r1]             @ DELAY UNTIL WRITTEN
+        
+	/* set CSADRCFG[0] to data flash SRAM mode */
+	ldr             r1, =CSADRCFG0
+	ldr             r2, =0x00320809
+	str             r2, [r1]             @ WRITE
+	ldr             r2, [r1]             @ DELAY UNTIL WRITTEN
+        
+	/* set CSADRCFG[1] to data flash SRAM mode */
+	ldr             r1, =CSADRCFG1
+	ldr             r2, =0x00320809
+	str             r2, [r1]             @ WRITE
+	ldr             r2, [r1]             @ DELAY UNTIL WRITTEN
+        
+	/* set MSC 0 register for SRAM memory */
+        ldr             r1, =MSC0
+        ldr             r2, =0x11191119
+        str             r2, [r1]             @ WRITE
+        ldr             r2, [r1]             @ DELAY UNTIL WRITTEN
+         
+	/* set CSADRCFG[2] to data flash SRAM mode */
+	ldr             r1, =CSADRCFG2
+	ldr             r2, =0x00320809
+	str             r2, [r1]             @ WRITE
+	ldr             r2, [r1]             @ DELAY UNTIL WRITTEN
+        
+	/* set CSADRCFG[3] to VLIO mode */
+        ldr             r1, =CSADRCFG3
+        ldr             r2, =0x0032080B
+        str             r2, [r1]             @ WRITE
+        ldr             r2, [r1]             @ DELAY UNTIL WRITTEN
+
+	/* set MSC 1 register for VLIO memory */
+        ldr             r1, =MSC1
+        ldr             r2, =0x123C1119
+        str             r2, [r1]             @ WRITE
+        ldr             r2, [r1]             @ DELAY UNTIL WRITTEN
+
+#if 0
+	/* This does not work in Zylonite. -SC */
+	ldr		r0, =0x15fffff0
+	ldr		r1, =0xb10b
+	str		r1, [r0]
+	str		r1, [r0, #4]
+#endif
+
+	/* Configure ACCR Register */
+	ldr		r0, =ACCR		@ ACCR
+	ldr		r1, =0x0180b108
+	str		r1, [r0]
+	ldr		r1, [r0]
+
+	/* Configure MDCNFG Register */
+	ldr		r0, =MDCNFG		@ MDCNFG
+	ldr		r1, =0x403
+	str		r1, [r0]
+	ldr		r1, [r0]
+
+	/* Perform Resistive Compensation by configuring RCOMP register */
+	ldr		r1, =RCOMP		@ RCOMP
+	ldr		r2, =0x000000ff
+	str		r2, [r1]
+	ldr		r2, [r1]
+
+	/* Configure MDMRS Register for SDCS0 */
+	ldr		r1, =MDMRS		@ MDMRS
+	ldr		r2, =0x60000023
+	ldr		r3, [r1]
+	orr		r2, r2, r3
+	str		r2, [r1]
+	ldr		r2, [r1]
+
+	/* Configure MDMRS Register for SDCS1 */
+	ldr		r1, =MDMRS		@ MDMRS
+	ldr		r2, =0xa0000023
+	ldr		r3, [r1]
+	orr		r2, r2, r3
+	str		r2, [r1]
+	ldr		r2, [r1]
+
+	/* Configure MDREFR */
+	ldr		r1, =MDREFR		@ MDREFR
+	ldr		r2, =0x00000006
+	str		r2, [r1]
+	ldr		r2, [r1]
+
+	/* Configure EMPI */
+	ldr		r1, =EMPI		@ EMPI
+	ldr		r2, =0x80000000
+	str		r2, [r1]
+	ldr		r2, [r1]
+
+	/* DDR Read-Strobe Delay Calibration */
+	/* bl	ddr_calibration */
+
+	/* Here we assume the hardware calibration alwasy be successful. -SC */
+	/* Set DMCEN bit in MDCNFG Register */
+	ldr		r0, =MDCNFG		@ MDCNFG
+	ldr		r1, [r0]
+	orr		r1, r1, #0x40000000	@ enable SDRAM for Normal Access
+	str		r1, [r0]
+
+	/* scrub/init SDRAM if enabled/present */
+	ldr	r11, =0xa0000000 //RAM_BASE	// base address of SDRAM
+	ldr	r12, =0x04000000 // size of memory to scrub
+	mov	r8,r12		// save DRAM size
+	mov	r0, #0		// scrub with 0x0000:0000
+	mov	r1, #0
+	mov	r2, #0				
+	mov	r3, #0
+	mov	r4, #0					
+	mov	r5, #0
+	mov	r6, #0					
+	mov	r7, #0
+10:     /* fastScrubLoop */
+	subs	r12, r12, #32	// 32 bytes/line
+	stmia	r11!, {r0-r7}
+	beq	15f
+	b	10b
+
+15:
+	/* Mask all interrupts */
+	mov	r1, #0
+	mcr	p6, 0, r1, c1, c0, 0	@ ICMR
+
+	/* 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
+
+
+	
+	/* We are finished with Intel's memory controller initialisation    */
+
+
+	/* ---------------------------------------------------------------- */
+	/* End lowlevel_init                                                     */
+	/* ---------------------------------------------------------------- */
+
+endlowlevel_init:
+
+    mov     pc, lr

board/zylonite/u-boot.lds

+/*
+ * (C) Copyright 2000
+ * 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 = .;
+}

board/zylonite/zylonite.c

+/*
+ * (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>
+ *
+ * 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>
+
+/* ------------------------------------------------------------------------- */
+
+
+/*
+ * 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_LUBBOCK;
+
+	/* adress of boot parameters */
+	gd->bd->bi_boot_params = 0xa0000100;
+
+	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;
+}

include/configs/zylonite.h

+/*
+ * (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>
+ *
+ * Configuation settings for the Zylonite board.
+ *
+ * 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
+ */
+
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+/*
+ * High Level Configuration Options
+ * (easy to change)
+ */
+#define CONFIG_CPU_MONAHANS	1	/* Intel Monahan CPU    */
+#define CONFIG_ZYLONITE		1	/* Zylonite board       */
+/* #define CONFIG_LCD		1 */
+#ifdef CONFIG_LCD
+#define CONFIG_SHARP_LM8V31
+#endif
+/* #define CONFIG_MMC		1 */
+#define BOARD_LATE_INIT		1
+
+#undef CONFIG_SKIP_RELOCATE_UBOOT
+#undef CONFIG_USE_IRQ			/* we don't need IRQ/FIQ stuff */
+
+/*
+ * Size of malloc() pool
+ */
+#define CFG_MALLOC_LEN	    (CFG_ENV_SIZE + 128*1024)
+#define CFG_GBL_DATA_SIZE	128	/* size in bytes reserved for initial data */
+
+/*
+ * Hardware drivers
+ */
+/* #define CONFIG_DRIVER_LAN91C96 */
+/* #define CONFIG_LAN91C96_BASE 0x0C000000 */
+
+/*
+ * select serial console configuration
+ */
+#define CONFIG_FFUART	       1       /* we use FFUART on LUBBOCK */
+
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+
+#define CONFIG_BAUDRATE		115200
+
+/* #define CONFIG_COMMANDS		(CONFIG_CMD_DFL | CFG_CMD_MMC | CFG_CMD_FAT) */
+#define CONFIG_COMMANDS		(CONFIG_CMD_DFL & ~CFG_CMD_REISER & ~CFG_CMD_NET)
+
+/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
+#include <cmd_confdefs.h>
+
+#define CONFIG_BOOTDELAY	3
+#define CONFIG_ETHADDR		08:00:3e:26:0a:5b
+#define CONFIG_NETMASK		255.255.0.0
+#define CONFIG_IPADDR		192.168.0.21
+#define CONFIG_SERVERIP		192.168.0.250
+#define CONFIG_BOOTCOMMAND	"bootm 80000"
+#define CONFIG_BOOTARGS		"root=/dev/mtdblock2 rootfstype=cramfs console=ttyS0,115200"
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_TIMESTAMP
+
+#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
+#define CONFIG_KGDB_BAUDRATE	230400		/* speed to run kgdb serial port */
+#define CONFIG_KGDB_SER_INDEX	2		/* which serial port to use */
+#endif
+
+/*
+ * Miscellaneous configurable options
+ */
+#define CFG_HUSH_PARSER		1
+#define CFG_PROMPT_HUSH_PS2	"> "
+
+#define CFG_LONGHELP				/* undef to save memory		*/
+#ifdef CFG_HUSH_PARSER
+#define CFG_PROMPT		"$ "		/* Monitor Command Prompt */
+#else
+#define CFG_PROMPT		"=> "		/* Monitor Command Prompt */
+#endif
+#define CFG_CBSIZE		256		/* Console I/O Buffer Size	*/
+#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
+#define CFG_MAXARGS		16		/* max number of command args	*/
+#define CFG_BARGSIZE		CFG_CBSIZE	/* Boot Argument Buffer Size	*/
+#define CFG_DEVICE_NULLDEV	1
+
+#define CFG_MEMTEST_START	0xa0400000	/* memtest works on	*/
+#define CFG_MEMTEST_END		0xa0800000	/* 4 ... 8 MB in DRAM	*/
+
+#undef	CFG_CLKS_IN_HZ		/* everything, incl board info, in Hz */
+
+#define CFG_LOAD_ADDR	(CFG_DRAM_BASE + 0x8000) /* default load address */
+
+#define CFG_HZ			3686400		/* incrementer freq: 3.6864 MHz */
+#define CFG_CPUSPEED		0x161		/* set core clock to 400/200/100 MHz */
+
+						/* valid baudrates */
+#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+
+/* #define CFG_MMC_BASE		0xF0000000 */
+
+/*
+ * Stack sizes
+ *
+ * The stack sizes are set up in start.S using the settings below
+ */
+#define CONFIG_STACKSIZE	(128*1024)	/* regular stack */
+#ifdef CONFIG_USE_IRQ
+#define CONFIG_STACKSIZE_IRQ	(4*1024)	/* IRQ stack */
+#define CONFIG_STACKSIZE_FIQ	(4*1024)	/* FIQ stack */
+#endif
+
+/*
+ * Physical Memory Map
+ */
+#define CONFIG_NR_DRAM_BANKS	4	   /* we have 2 banks of DRAM */
+#define PHYS_SDRAM_1		0xa0000000 /* SDRAM Bank #1 */
+#define PHYS_SDRAM_1_SIZE	0x04000000 /* 64 MB */
+#define PHYS_SDRAM_2		0xa4000000 /* SDRAM Bank #2 */
+#define PHYS_SDRAM_2_SIZE	0x00000000 /* 0 MB */
+#define PHYS_SDRAM_3		0xa8000000 /* SDRAM Bank #3 */
+#define PHYS_SDRAM_3_SIZE	0x00000000 /* 0 MB */
+#define PHYS_SDRAM_4		0xac000000 /* SDRAM Bank #4 */
+#define PHYS_SDRAM_4_SIZE	0x00000000 /* 0 MB */
+
+#define PHYS_FLASH_1		0x00000000 /* Flash Bank #1 */
+#define PHYS_FLASH_2		0x04000000 /* Flash Bank #2 */
+#define PHYS_FLASH_SIZE		0x02000000 /* 32 MB */
+#define PHYS_FLASH_BANK_SIZE	0x02000000 /* 32 MB Banks */
+#define PHYS_FLASH_SECT_SIZE	0x00040000 /* 256 KB sectors (x2) */
+
+#define CFG_DRAM_BASE		0xa0000000
+#define CFG_DRAM_SIZE		0x04000000
+
+#define CFG_FLASH_BASE		PHYS_FLASH_1
+
+#define FPGA_REGS_BASE_PHYSICAL 0x08000000
+
+/*
+ * GPIO settings
+ */
+#define CFG_GPSR0_VAL		0x00008000
+#define CFG_GPSR1_VAL		0x00FC0382
+#define CFG_GPSR2_VAL		0x0001FFFF
+#define CFG_GPCR0_VAL		0x00000000
+#define CFG_GPCR1_VAL		0x00000000
+#define CFG_GPCR2_VAL		0x00000000
+#define CFG_GPDR0_VAL		0x0060A800
+#define CFG_GPDR1_VAL		0x00FF0382
+#define CFG_GPDR2_VAL		0x0001C000
+#define CFG_GAFR0_L_VAL		0x98400000
+#define CFG_GAFR0_U_VAL		0x00002950
+#define CFG_GAFR1_L_VAL		0x000A9558
+#define CFG_GAFR1_U_VAL		0x0005AAAA
+#define CFG_GAFR2_L_VAL		0xA0000000
+#define CFG_GAFR2_U_VAL		0x00000002
+
+#define CFG_PSSR_VAL		0x20
+
+/*
+ * Memory settings
+ */
+#define CFG_MSC0_VAL		0x23F223F2
+#define CFG_MSC1_VAL		0x3FF1A441
+#define CFG_MSC2_VAL		0x7FF97FF1
+#define CFG_MDCNFG_VAL		0x00001AC9
+#define CFG_MDREFR_VAL		0x00018018
+#define CFG_MDMRS_VAL		0x00000000
+
+/*
+ * PCMCIA and CF Interfaces
+ */
+#define CFG_MECR_VAL		0x00000000
+#define CFG_MCMEM0_VAL		0x00010504
+#define CFG_MCMEM1_VAL		0x00010504
+#define CFG_MCATT0_VAL		0x00010504
+#define CFG_MCATT1_VAL		0x00010504
+#define CFG_MCIO0_VAL		0x00004715
+#define CFG_MCIO1_VAL		0x00004715
+
+#define _LED			0x08000010
+#define LED_BLANK		0x08000040
+
+/*
+ * FLASH and environment organization
+ */
+#define CFG_MAX_FLASH_BANKS	2	/* max number of memory banks		*/
+#define CFG_MAX_FLASH_SECT	128  /* max number of sectors on one chip    */
+
+/* timeout values are in ticks */
+#define CFG_FLASH_ERASE_TOUT	(25*CFG_HZ) /* Timeout for Flash Erase */
+#define CFG_FLASH_WRITE_TOUT	(25*CFG_HZ) /* Timeout for Flash Write */
+
+/* NOTE: many default partitioning schemes assume the kernel starts at the
+ * second sector, not an environment.  You have been warned!
+ */
+#define	CFG_MONITOR_LEN		PHYS_FLASH_SECT_SIZE
+#define CFG_ENV_IS_IN_FLASH	1
+#define CFG_ENV_ADDR		(PHYS_FLASH_1 + PHYS_FLASH_SECT_SIZE)
+#define CFG_ENV_SECT_SIZE	PHYS_FLASH_SECT_SIZE
+#define CFG_ENV_SIZE		(PHYS_FLASH_SECT_SIZE / 16)
+
+
+/*
+ * FPGA Offsets
+ */
+#define WHOAMI_OFFSET		0x00
+#define HEXLED_OFFSET		0x10
+#define BLANKLED_OFFSET		0x40
+#define DISCRETELED_OFFSET	0x40
+#define CNFG_SWITCHES_OFFSET	0x50
+#define USER_SWITCHES_OFFSET	0x60
+#define MISC_WR_OFFSET		0x80
+#define MISC_RD_OFFSET		0x90
+#define INT_MASK_OFFSET		0xC0
+#define INT_CLEAR_OFFSET	0xD0
+#define GP_OFFSET		0x100
+
+#endif	/* __CONFIG_H */