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-rw-r--r--board/wepep250/Makefile47
-rw-r--r--board/wepep250/config.mk11
-rw-r--r--board/wepep250/flash.c321
-rw-r--r--board/wepep250/intel.h100
-rw-r--r--board/wepep250/memsetup.S147
-rw-r--r--board/wepep250/u-boot.lds55
-rw-r--r--board/wepep250/wepep250.c77
7 files changed, 758 insertions, 0 deletions
diff --git a/board/wepep250/Makefile b/board/wepep250/Makefile
new file mode 100644
index 0000000..d4314d7
--- /dev/null
+++ b/board/wepep250/Makefile
@@ -0,0 +1,47 @@
+#
+# (C) Copyright 2000, 2002
+# 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 := wepep250.o flash.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
+
+#########################################################################
diff --git a/board/wepep250/config.mk b/board/wepep250/config.mk
new file mode 100644
index 0000000..792f0ee
--- /dev/null
+++ b/board/wepep250/config.mk
@@ -0,0 +1,11 @@
+#
+# This is config used for compilation of WEP EP250 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 = 0xa1fe0000
+#TEXT_BASE = 0xa1001000 \ No newline at end of file
diff --git a/board/wepep250/flash.c b/board/wepep250/flash.c
new file mode 100644
index 0000000..319dddc
--- /dev/null
+++ b/board/wepep250/flash.c
@@ -0,0 +1,321 @@
+/*
+ * Copyright (C) 2003 ETC s.r.o.
+ *
+ * This code was inspired by Marius Groeger and Kyle Harris code
+ * available in other board ports for U-Boot
+ *
+ * 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
+ *
+ * Written by Peter Figuli <peposh@etc.sk>, 2003.
+ *
+ */
+
+#include <common.h>
+#include "intel.h"
+
+
+/*
+ * This code should handle CFI FLASH memory device. This code is very
+ * minimalistic approach without many essential error handling code as well.
+ * Because U-Boot actually is missing smart handling of FLASH device,
+ * we just set flash_id to anything else to FLASH_UNKNOW, so common code
+ * can call us without any restrictions.
+ * TODO: Add CFI Query, to be able to determine FLASH device.
+ * TODO: Add error handling code
+ * NOTE: This code was tested with BUS_WIDTH 4 and ITERLEAVE 2 only, but
+ * hopefully may work with other configurations.
+ */
+
+#if ( WEP_FLASH_BUS_WIDTH == 1 )
+# define FLASH_BUS vu_char
+# if ( WEP_FLASH_INTERLEAVE == 1 )
+# define FLASH_CMD( x ) x
+# else
+# error "With 8bit bus only one chip is allowed"
+# endif
+
+
+#elif ( WEP_FLASH_BUS_WIDTH == 2 )
+# define FLASH_BUS vu_short
+# if ( WEP_FLASH_INTERLEAVE == 1 )
+# define FLASH_CMD( x ) x
+# elif ( WEP_FLASH_INTERLEAVE == 2 )
+# define FLASH_CMD( x ) (( x << 8 )| x )
+# else
+# error "With 16bit bus only 1 or 2 chip(s) are allowed"
+# endif
+
+
+#elif ( WEP_FLASH_BUS_WIDTH == 4 )
+# define FLASH_BUS vu_long
+# if ( WEP_FLASH_INTERLEAVE == 1 )
+# define FLASH_CMD( x ) x
+# elif ( WEP_FLASH_INTERLEAVE == 2 )
+# define FLASH_CMD( x ) (( x << 16 )| x )
+# elif ( WEP_FLASH_INTERLEAVE == 4 )
+# define FLASH_CMD( x ) (( x << 24 )|( x << 16 ) ( x << 8 )| x )
+# else
+# error "With 32bit bus only 1,2 or 4 chip(s) are allowed"
+# endif
+
+#else
+# error "Flash bus width might be 1,2,4 for 8,16,32 bit configuration"
+#endif
+
+
+flash_info_t flash_info[CFG_MAX_FLASH_BANKS];
+
+static FLASH_BUS flash_status_reg (void)
+{
+
+ FLASH_BUS *addr = (FLASH_BUS *) 0;
+
+ *addr = FLASH_CMD (CFI_INTEL_CMD_READ_STATUS_REGISTER);
+
+ return *addr;
+}
+
+static int flash_ready (ulong timeout)
+{
+ int ok = 1;
+
+ reset_timer_masked ();
+ while ((flash_status_reg () & FLASH_CMD (CFI_INTEL_SR_READY)) !=
+ FLASH_CMD (CFI_INTEL_SR_READY)) {
+ if (get_timer_masked () > timeout && timeout != 0) {
+ ok = 0;
+ break;
+ }
+ }
+ return ok;
+}
+
+#if ( CFG_MAX_FLASH_BANKS != 1 )
+# error "WEP platform has only one flash bank!"
+#endif
+
+
+ulong flash_init (void)
+{
+ int i;
+ FLASH_BUS address = WEP_FLASH_BASE;
+
+ flash_info[0].size = WEP_FLASH_BANK_SIZE;
+ flash_info[0].sector_count = CFG_MAX_FLASH_SECT;
+ flash_info[0].flash_id = INTEL_MANUFACT;
+ memset (flash_info[0].protect, 0, CFG_MAX_FLASH_SECT);
+
+ for (i = 0; i < CFG_MAX_FLASH_SECT; i++) {
+ flash_info[0].start[i] = address;
+#ifdef WEP_FLASH_UNLOCK
+ /* Some devices are hw locked after start. */
+ *((FLASH_BUS *) address) = FLASH_CMD (CFI_INTEL_CMD_LOCK_SETUP);
+ *((FLASH_BUS *) address) = FLASH_CMD (CFI_INTEL_CMD_UNLOCK_BLOCK);
+ flash_ready (0);
+ *((FLASH_BUS *) address) = FLASH_CMD (CFI_INTEL_CMD_READ_ARRAY);
+#endif
+ address += WEP_FLASH_SECT_SIZE;
+ }
+
+ flash_protect (FLAG_PROTECT_SET,
+ CFG_FLASH_BASE,
+ CFG_FLASH_BASE + _armboot_end_data - _armboot_start,
+ &flash_info[0]);
+
+ flash_protect (FLAG_PROTECT_SET,
+ CFG_ENV_ADDR,
+ CFG_ENV_ADDR + CFG_ENV_SIZE - 1, &flash_info[0]);
+
+ return WEP_FLASH_BANK_SIZE;
+}
+
+void flash_print_info (flash_info_t * info)
+{
+ int i;
+
+ printf (" Intel vendor\n");
+ 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)) {
+ printf ("\n");
+ }
+
+ printf (" %08lX%s", info->start[i],
+ info->protect[i] ? " (RO)" : " ");
+ }
+ printf ("\n");
+}
+
+
+int flash_erase (flash_info_t * info, int s_first, int s_last)
+{
+ int flag, non_protected = 0, sector;
+ int rc = ERR_OK;
+
+ FLASH_BUS *address;
+
+ for (sector = s_first; sector <= s_last; sector++) {
+ if (!info->protect[sector]) {
+ non_protected++;
+ }
+ }
+
+ if (!non_protected) {
+ return ERR_PROTECTED;
+ }
+
+ /*
+ * Disable interrupts which might cause a timeout
+ * here. Remember that our exception vectors are
+ * at address 0 in the flash, and we don't want a
+ * (ticker) exception to happen while the flash
+ * chip is in programming mode.
+ */
+ flag = disable_interrupts ();
+
+
+ /* Start erase on unprotected sectors */
+ for (sector = s_first; sector <= s_last && !ctrlc (); sector++) {
+ if (info->protect[sector]) {
+ printf ("Protected sector %2d skipping...\n", sector);
+ continue;
+ } else {
+ printf ("Erasing sector %2d ... ", sector);
+ }
+
+ address = (FLASH_BUS *) (info->start[sector]);
+
+ *address = FLASH_CMD (CFI_INTEL_CMD_BLOCK_ERASE);
+ *address = FLASH_CMD (CFI_INTEL_CMD_CONFIRM);
+ if (flash_ready (CFG_FLASH_ERASE_TOUT)) {
+ *address = FLASH_CMD (CFI_INTEL_CMD_CLEAR_STATUS_REGISTER);
+ printf ("ok.\n");
+ } else {
+ *address = FLASH_CMD (CFI_INTEL_CMD_SUSPEND);
+ rc = ERR_TIMOUT;
+ printf ("timeout! Aborting...\n");
+ break;
+ }
+ *address = FLASH_CMD (CFI_INTEL_CMD_READ_ARRAY);
+ }
+ if (ctrlc ())
+ printf ("User Interrupt!\n");
+
+ /* allow flash to settle - wait 10 ms */
+ udelay_masked (10000);
+ if (flag) {
+ enable_interrupts ();
+ }
+
+ return rc;
+}
+
+static int write_data (flash_info_t * info, ulong dest, FLASH_BUS data)
+{
+ FLASH_BUS *address = (FLASH_BUS *) dest;
+ int rc = ERR_OK;
+ int flag;
+
+ /* Check if Flash is (sufficiently) erased */
+ if ((*address & data) != data) {
+ return ERR_NOT_ERASED;
+ }
+
+ /*
+ * Disable interrupts which might cause a timeout
+ * here. Remember that our exception vectors are
+ * at address 0 in the flash, and we don't want a
+ * (ticker) exception to happen while the flash
+ * chip is in programming mode.
+ */
+
+ flag = disable_interrupts ();
+
+ *address = FLASH_CMD (CFI_INTEL_CMD_CLEAR_STATUS_REGISTER);
+ *address = FLASH_CMD (CFI_INTEL_CMD_PROGRAM1);
+ *address = data;
+
+ if (!flash_ready (CFG_FLASH_WRITE_TOUT)) {
+ *address = FLASH_CMD (CFI_INTEL_CMD_SUSPEND);
+ rc = ERR_TIMOUT;
+ printf ("timeout! Aborting...\n");
+ }
+
+ *address = FLASH_CMD (CFI_INTEL_CMD_READ_ARRAY);
+ if (flag) {
+ enable_interrupts ();
+ }
+
+ return rc;
+}
+
+int write_buff (flash_info_t * info, uchar * src, ulong addr, ulong cnt)
+{
+ ulong read_addr, write_addr;
+ FLASH_BUS data;
+ int i, result = ERR_OK;
+
+
+ read_addr = addr & ~(sizeof (FLASH_BUS) - 1);
+ write_addr = read_addr;
+ if (read_addr != addr) {
+ data = 0;
+ for (i = 0; i < sizeof (FLASH_BUS); i++) {
+ if (read_addr < addr || cnt == 0) {
+ data |= *((uchar *) read_addr) << i * 8;
+ } else {
+ data |= (*src++) << i * 8;
+ cnt--;
+ }
+ read_addr++;
+ }
+ if ((result = write_data (info, write_addr, data)) != ERR_OK) {
+ return result;
+ }
+ write_addr += sizeof (FLASH_BUS);
+ }
+ for (; cnt >= sizeof (FLASH_BUS); cnt -= sizeof (FLASH_BUS)) {
+ if ((result = write_data (info, write_addr,
+ *((FLASH_BUS *) src))) != ERR_OK) {
+ return result;
+ }
+ write_addr += sizeof (FLASH_BUS);
+ src += sizeof (FLASH_BUS);
+ }
+ if (cnt > 0) {
+ read_addr = write_addr;
+ data = 0;
+ for (i = 0; i < sizeof (FLASH_BUS); i++) {
+ if (cnt > 0) {
+ data |= (*src++) << i * 8;
+ cnt--;
+ } else {
+ data |= *((uchar *) read_addr) << i * 8;
+ }
+ read_addr++;
+ }
+ if ((result = write_data (info, write_addr, data)) != 0) {
+ return result;
+ }
+ }
+ return ERR_OK;
+}
diff --git a/board/wepep250/intel.h b/board/wepep250/intel.h
new file mode 100644
index 0000000..f622590
--- /dev/null
+++ b/board/wepep250/intel.h
@@ -0,0 +1,100 @@
+/*
+ * Copyright (C) 2002 ETC s.r.o.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the ETC s.r.o. nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * Written by Marcel Telka <marcel@telka.sk>, 2002.
+ *
+ * Documentation:
+ * [1] Intel Corporation, "3 Volt Intel Strata Flash Memory 28F128J3A, 28F640J3A,
+ * 28F320J3A (x8/x16)", April 2002, Order Number: 290667-011
+ * [2] Intel Corporation, "3 Volt Synchronous Intel Strata Flash Memory 28F640K3, 28F640K18,
+ * 28F128K3, 28F128K18, 28F256K3, 28F256K18 (x16)", June 2002, Order Number: 290737-005
+ *
+ * This file is taken from OpenWinCE project hosted by SourceForge.net
+ *
+ */
+
+#ifndef FLASH_INTEL_H
+#define FLASH_INTEL_H
+
+#include <common.h>
+
+/* Intel CFI commands - see Table 4. in [1] and Table 3. in [2] */
+
+#define CFI_INTEL_CMD_READ_ARRAY 0xFF /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_READ_IDENTIFIER 0x90 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_READ_QUERY 0x98 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_READ_STATUS_REGISTER 0x70 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_CLEAR_STATUS_REGISTER 0x50 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_PROGRAM1 0x40 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_PROGRAM2 0x10 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_WRITE_TO_BUFFER 0xE8 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_CONFIRM 0xD0 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_BLOCK_ERASE 0x20 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_SUSPEND 0xB0 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_RESUME 0xD0 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_LOCK_SETUP 0x60 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_LOCK_BLOCK 0x01 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_UNLOCK_BLOCK 0xD0 /* 28FxxxJ3A - unlocks all blocks, 28FFxxxK3, 28FxxxK18 */
+#define CFI_INTEL_CMD_LOCK_DOWN_BLOCK 0x2F /* 28FxxxK3, 28FxxxK18 */
+
+/* Intel CFI Status Register bits - see Table 6. in [1] and Table 7. in [2] */
+
+#define CFI_INTEL_SR_READY 1 << 7 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_SR_ERASE_SUSPEND 1 << 6 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_SR_ERASE_ERROR 1 << 5 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_SR_PROGRAM_ERROR 1 << 4 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_SR_VPEN_ERROR 1 << 3 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_SR_PROGRAM_SUSPEND 1 << 2 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_SR_BLOCK_LOCKED 1 << 1 /* 28FxxxJ3A, 28FxxxK3, 28FxxxK18 */
+#define CFI_INTEL_SR_BEFP 1 << 0 /* 28FxxxK3, 28FxxxK18 */
+
+/* Intel flash device ID codes for 28FxxxJ3A - see Table 5. in [1] */
+
+#define CFI_CHIP_INTEL_28F320J3A 0x0016
+#define CFI_CHIPN_INTEL_28F320J3A "28F320J3A"
+#define CFI_CHIP_INTEL_28F640J3A 0x0017
+#define CFI_CHIPN_INTEL_28F640J3A "28F640J3A"
+#define CFI_CHIP_INTEL_28F128J3A 0x0018
+#define CFI_CHIPN_INTEL_28F128J3A "28F128J3A"
+
+/* Intel flash device ID codes for 28FxxxK3 and 28FxxxK18 - see Table 8. in [2] */
+
+#define CFI_CHIP_INTEL_28F640K3 0x8801
+#define CFI_CHIPN_INTEL_28F640K3 "28F640K3"
+#define CFI_CHIP_INTEL_28F128K3 0x8802
+#define CFI_CHIPN_INTEL_28F128K3 "28F128K3"
+#define CFI_CHIP_INTEL_28F256K3 0x8803
+#define CFI_CHIPN_INTEL_28F256K3 "28F256K3"
+#define CFI_CHIP_INTEL_28F640K18 0x8805
+#define CFI_CHIPN_INTEL_28F640K18 "28F640K18"
+#define CFI_CHIP_INTEL_28F128K18 0x8806
+#define CFI_CHIPN_INTEL_28F128K18 "28F128K18"
+#define CFI_CHIP_INTEL_28F256K18 0x8807
+#define CFI_CHIPN_INTEL_28F256K18 "28F256K18"
+
+#endif /* FLASH_INTEL_H */
+
diff --git a/board/wepep250/memsetup.S b/board/wepep250/memsetup.S
new file mode 100644
index 0000000..8a5d42f
--- /dev/null
+++ b/board/wepep250/memsetup.S
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2001, 2002 ETC s.r.o.
+ *
+ * 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 Marcel Telka <marcel@telka.sk>, 2001, 2002.
+ * Changes for U-Boot Peter Figuli <peposh@etc.sk>, 2003.
+ *
+ * This file is taken from OpenWinCE project hosted by SourceForge.net
+ *
+ * Documentation:
+ * [1] Intel Corporation, "Intel PXA250 and PXA210 Application Processors
+ * Developer's Manual", February 2002, Order Number: 278522-001
+ * [2] Samsung Electronics, "8Mx16 SDRAM 54CSP K4S281633D-RL/N/P",
+ * Revision 1.0, February 2002
+ * [3] Samsung Electronics, "16Mx16 SDRAM 54CSP K4S561633C-RL(N)",
+ * Revision 1.0, February 2002
+ *
+*/
+
+#include <config.h>
+#include <version.h>
+#include <asm/arch/pxa-regs.h>
+
+.globl memsetup
+memsetup:
+
+ mov r10, lr
+
+/* setup memory - see 6.12 in [1]
+ * Step 1 - wait 200 us
+ */
+ mov r0,#0x2700 /* wait 200 us @ 99.5 MHz */
+1: subs r0, r0, #1
+ bne 1b
+/* TODO: complete step 1 for Synchronous Static memory*/
+
+ ldr r0, =0x48000000 /* MC_BASE */
+
+
+
+/* step 1.a - setup MSCx
+ */
+ ldr r1, =0x000012B3 /* MSC0_RRR0(1) | MSC0_RDN0(2) | MSC0_RDF0(11) | MSC0_RT0(3) */
+ str r1, [r0, #0x8] /* MSC0_OFFSET */
+
+/* step 1.c - clear MDREFR:K1FREE, set MDREFR:DRI
+ * see AUTO REFRESH chapter in section D. in [2] and in [3]
+ * DRI = (64ms / 4096) * 99.53MHz / 32 = 48 for K4S281633
+ * DRI = (64ms / 8192) * 99.52MHz / 32 = 24 for K4S561633
+ * TODO: complete for Synchronous Static memory
+ */
+ ldr r1, [r0, #4] /* MDREFR_OFFSET */
+ ldr r2, =0x01000FFF /* MDREFR_K1FREE | MDREFR_DRI_MASK */
+ bic r1, r1, r2
+#if defined( WEP_SDRAM_K4S281633 )
+ orr r1, r1, #48 /* MDREFR_DRI(48) */
+#elif defined( WEP_SDRAM_K4S561633 )
+ orr r1, r1, #24 /* MDREFR_DRI(24) */
+#else
+#error SDRAM chip is not defined
+#endif
+
+ str r1, [r0, #4] /* MDREFR_OFFSET */
+
+/* Step 2 - only for Synchronous Static memory (TODO)
+ *
+ * Step 3 - same as step 4
+ *
+ * Step 4
+ *
+ * Step 4.a - set MDREFR:K1RUN, clear MDREFR:K1DB2
+ */
+ orr r1, r1, #0x00010000 /* MDREFR_K1RUN */
+ bic r1, r1, #0x00020000 /* MDREFR_K1DB2 */
+ str r1, [r0, #4] /* MDREFR_OFFSET */
+
+/* Step 4.b - clear MDREFR:SLFRSH */
+ bic r1, r1, #0x00400000 /* MDREFR_SLFRSH */
+ str r1, [r0, #4] /* MDREFR_OFFSET */
+
+/* Step 4.c - set MDREFR:E1PIN */
+ orr r1, r1, #0x00008000 /* MDREFR_E1PIN */
+ str r1, [r0, #4] /* MDREFR_OFFSET */
+
+/* Step 4.d - automatically done
+ *
+ * Steps 4.e and 4.f - configure SDRAM
+ */
+#if defined( WEP_SDRAM_K4S281633 )
+ ldr r1, =0x00000AA8 /* MDCNFG_DTC0(2) | MDCNFG_DLATCH0 | MDCNFG_DCAC0(1) | MDCNFG_DRAC0(1) | MDCNFG_DNB0 */
+#elif defined( WEP_SDRAM_K4S561633 )
+ ldr r1, =0x00000AC8 /* MDCNFG_DTC0(2) | MDCNFG_DLATCH0 | MDCNFG_DCAC0(1) | MDCNFG_DRAC0(2) | MDCNFG_DNB0 */
+#else
+#error SDRAM chip is not defined
+#endif
+ str r1, [r0, #0] /* MDCNFG_OFFSET */
+
+/* Step 5 - wait at least 200 us for SDRAM
+ * see section B. in [2]
+ */
+ mov r2,#0x2700 /* wait 200 us @ 99.5 MHz */
+1: subs r2, r2, #1
+ bne 1b
+
+/* Step 6 - after reset dcache is disabled, so automatically done
+ *
+ * Step 7 - eight refresh cycles
+ */
+ mov r2, #0xA0000000
+ ldr r3, [r2]
+ ldr r3, [r2]
+ ldr r3, [r2]
+ ldr r3, [r2]
+ ldr r3, [r2]
+ ldr r3, [r2]
+ ldr r3, [r2]
+ ldr r3, [r2]
+
+/* Step 8 - we don't need dcache now
+ *
+ * Step 9 - enable SDRAM partition 0
+ */
+ orr r1, r1, #1 /* MDCNFG_DE0 */
+ str r1, [r0, #0] /* MDCNFG_OFFSET */
+
+/* Step 10 - write MDMRS */
+ mov r1, #0
+ str r1, [r0, #0x40] /* MDMRS_OFFSET */
+
+/* Step 11 - optional (TODO) */
+
+ mov pc,r10
+
diff --git a/board/wepep250/u-boot.lds b/board/wepep250/u-boot.lds
new file mode 100644
index 0000000..280fc48
--- /dev/null
+++ b/board/wepep250/u-boot.lds
@@ -0,0 +1,55 @@
+/*
+ * (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/xscale/start.o (.text)
+ *(.text)
+ }
+
+ . = ALIGN(4);
+ .rodata : { *(.rodata) }
+
+ . = ALIGN(4);
+ .data : { *(.data) }
+
+ . = ALIGN(4);
+ .got : { *(.got) }
+
+ armboot_end_data = .;
+
+ . = ALIGN(4);
+ bss_start = .;
+ .bss : { *(.bss) }
+ bss_end = .;
+
+ armboot_end = .;
+}
diff --git a/board/wepep250/wepep250.c b/board/wepep250/wepep250.c
new file mode 100644
index 0000000..ebf75d7
--- /dev/null
+++ b/board/wepep250/wepep250.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2003 ETC s.r.o.
+ *
+ * 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 Peter Figuli <peposh@etc.sk>, 2003.
+ *
+ */
+
+#include <common.h>
+#include <asm/arch/pxa-regs.h>
+
+int board_init( void ){
+ DECLARE_GLOBAL_DATA_PTR;
+
+ gd->bd->bi_arch_number = 288;
+ gd->bd->bi_boot_params = 0xa0000000;
+/*
+ * Setup GPIO stuff to get serial working
+ */
+#if defined( CONFIG_FFUART )
+ GPDR1 = 0x80;
+ GAFR1_L = 0x8010;
+#elif defined( CONFIG_BTUART )
+ GPDR1 = 0x800;
+ GAFR1_L = 0x900000;
+#endif
+ PSSR = 0x20;
+
+/*
+ * Following code is just bug workaround, remove it if not neccessary
+ */
+
+ /* cpu/xscale/cpu.c do not set armboot_real_end that is used for
+ malloc pool.*/
+ if( _armboot_real_end == 0xbadc0de ){
+ _armboot_real_end = _armboot_end;
+ }
+ return 0;
+}
+
+int dram_init( void ){
+ DECLARE_GLOBAL_DATA_PTR;
+
+#if ( CONFIG_NR_DRAM_BANKS > 0 )
+ gd->bd->bi_dram[0].start = WEP_SDRAM_1;
+ gd->bd->bi_dram[0].size = WEP_SDRAM_1_SIZE;
+#endif
+#if ( CONFIG_NR_DRAM_BANKS > 1 )
+ gd->bd->bi_dram[1].start = WEP_SDRAM_2;
+ gd->bd->bi_dram[1].size = WEP_SDRAM_2_SIZE;
+#endif
+#if ( CONFIG_NR_DRAM_BANKS > 2 )
+ gd->bd->bi_dram[2].start = WEP_SDRAM_3;
+ gd->bd->bi_dram[2].size = WEP_SDRAM_3_SIZE;
+#endif
+#if ( CONFIG_NR_DRAM_BANKS > 3 )
+ gd->bd->bi_dram[3].start = WEP_SDRAM_4;
+ gd->bd->bi_dram[3].size = WEP_SDRAM_4_SIZE;
+#endif
+
+ return 0;
+}
+