wince -- uboot 启动 wince

diff -bwpurN zelk-0.9.0/u-boot/common/cmd_bin.c u-boot/common/cmd_bin.c
--- zelk-0.9.0/u-boot/common/cmd_bin.c	1970-01-01 01:00:00.000000000 +0100
+++ u-boot/common/cmd_bin.c	2005-04-01 17:24:06.000000000 +0200
@@ -0,0 +1,286 @@
+/*
+ * (C) Copyright 2004
+ * Andrea Scian, Dave Srl, [email protected]
+ *
+ * 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>
+#include <linux/ctype.h>
+#include <net.h>
+#include <ep93xx.h>
+
+
+#if (CONFIG_COMMANDS & CFG_CMD_BIN)
+
+#ifndef MAX
+#define MAX(a,b) ((a) > (b) ? (a) : (b))
+#endif
+
+#undef	CMD_BIN_DEBUG
+
+
+#ifdef	CMD_BIN_DEBUG
+#define	PRINTF(fmt,args...)	printf (fmt ,##args)
+#else
+#define PRINTF(fmt,args...)
+#endif
+
+/* ======================================================================
+ * BIN file type definition
+ * ====================================================================== */
+
+#define NUM_SYNCBYTES 7
+
+#define SYNC_MAGIC "B000FF\n"
+
+struct bin_sync {
+	unsigned char syncbytes[NUM_SYNCBYTES];
+};
+
+struct bin_header {
+	unsigned int img_start;
+	unsigned int img_length;
+};
+
+#define BASE_BIN_RECORD_SIZE 12
+
+struct bin_record {
+	unsigned int address;
+	unsigned int length;
+	unsigned int checksum;
+	/*
+	** unsigned char data[length];
+	*/
+};
+
+extern int build_bin_image_parameters(char* cmdline);
+
+int valid_bin_image (unsigned long addr);
+unsigned long load_bin_image (unsigned long addr);
+
+
+/* ======================================================================
+ * Interpreter command to boot WindowsCE from a memory image.  The image can
+ * be either a .bin image or a raw binary (nb0).  Will attempt to setup the
+ * bootline and other parameters correctly.
+ * ====================================================================== */
+int do_bootwince ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+{
+#if defined(CONFIG_WALNUT405)	|| \
+    defined(CONFIG_CPCI405)	|| \
+    defined(CONFIG_OCRTC)	|| \
+    defined(CONFIG_ORSG)
+	DECLARE_GLOBAL_DATA_PTR;
+#endif
+
+	unsigned long addr;		/* Address of image            */
+	unsigned long bootaddr;		/* Address to put the bootline */
+	char *bootline;			/* Text of the bootline        */
+	char *tmp;			/* Temporary char pointer      */
+
+	char build_buf[80];		/* Buffer for building the bootline */
+
+	volatile unsigned int value;
+
+	/*
+	 * Check the loadaddr variable.
+	 * If we don't know where the image is then we're done.
+	 */
+
+	if (argc>1) {
+		addr = simple_strtoul (argv[1], NULL, 16);
+	} else if ((tmp = getenv ("loadaddr")) != NULL) {
+		addr = simple_strtoul (tmp, NULL, 16);
+	} else {
+		puts ("No load address provided!\n");
+		return 1;
+	}
+
+#if (CONFIG_COMMANDS & CFG_CMD_NET)
+	/* Check to see if we need to tftp the image ourselves before starting */
+
+	if ((argc == 2) && (strcmp (argv[1], "tftp") == 0)) {
+		if (NetLoop (TFTP) <= 0)
+			return 1;
+		printf ("Automatic boot of WindowsCE image at address 0x%04x ... \n", addr);
+	}
+#endif
+
+	/*
+	 * Use bootaddr to find the location in memory that WindowsCE
+	 * will look for the bootline string. The default value for
+	 * PowerPC is LOCAL_MEM_LOCAL_ADRS + BOOT_LINE_OFFSET which
+	 * defaults to 0x4200
+	 */
+	if ((tmp = getenv ("bootaddr")) == NULL)
+		bootaddr = PHYS_SDRAM_1 | 0x4200;
+	else
+		bootaddr = simple_strtoul (tmp, NULL, 16);
+
+	/*
+	 * Check to see if the bootline is defined in the 'bootargs'
+	 * parameter. If it is not defined, we may be able to
+	 * construct the info
+	 */
+
+	if ((bootline = getenv ("bootargs")) != NULL) {
+		memcpy ((void *) bootaddr, bootline, MAX(strlen(bootline), 512));
+		flush_cache (bootaddr, MAX(strlen(bootline), 512));
+	} else {
+		/* there is no command line! */
+		memset ((void *) bootaddr, 0, 512);
+	}
+
+#ifdef CONFIG_BUILD_BIN_PARAM
+	build_bin_image_parameters(bootaddr);
+#endif
+
+	/*
+	 * If the data at the load address is an elf image, then
+	 * treat it like an elf image. Otherwise, assume that it is a
+	 * binary image
+	 */
+
+	printf ("## Loading WindowsCE binary image from 0x%04x, please wait...\n", addr);
+
+	if (valid_bin_image (addr)) {
+		addr = load_bin_image (addr+NUM_SYNCBYTES);
+	} else {
+		puts ("## Not an WinCE BIN image, assuming absolute binary image (.nb0)\n");
+		/* leave addr as load_addr */
+	}
+
+	if (addr==(unsigned long)0xFFFFFFFF) {
+		printf ("## ABORTING: wrong CRC\n");
+		return 1;
+	}
+
+	PRINTF ("## Using bootline (@ 0x%lx): %s\n", bootaddr,
+			(char *) bootaddr);
+	printf ("## Starting WindowsCE at 0x%04x ...\n", addr);
+
+	((void (*)(void)) addr) ();
+
+	/* we should NEVER get here! */
+
+	puts ("## WindowsCE terminated\n");
+	return 1;
+}
+
+/* ======================================================================
+ * Determine if a valid BIN image exists at the given memory location.
+ * Looks at the BIN header magic field.
+ * ====================================================================== */
+int valid_bin_image (unsigned long addr)
+{
+	struct bin_sync* sync;
+
+	sync = (struct bin_sync*) addr;
+
+	if (strncmp(sync->syncbytes, SYNC_MAGIC, NUM_SYNCBYTES) == 0)
+		return 1;
+	else return 0;
+}
+
+
+/* ======================================================================
+ * A simple WinCE BIN loader, assumes the image is valid, returns the
+ * entry point address.
+ * ====================================================================== */
+unsigned long load_bin_image (unsigned long addr)
+{
+	int i;
+	unsigned long current_addr;
+	unsigned long dest_addr;
+	unsigned long current_dest_addr;
+	struct bin_header header;
+	struct bin_record record;
+	int record_num;
+	long int record_checksum;
+
+	/* read bin header */
+
+	memcpy((char*)&header, (char*)addr, sizeof(header));
+
+	PRINTF("#### .bin image header data:\n");
+	PRINTF("#### start 0x%04x, size 0x%04x\n", header.img_start,
+		header.img_length);
+
+	current_addr = addr + sizeof(struct bin_header);
+	current_dest_addr = header.img_start;
+
+	record_num = 0;
+	while (1) {
+		/* read record */
+		memcpy((char*)&record, (char*)current_addr, sizeof(record));
+
+		PRINTF("#### .bin record #%d:\n", record_num);
+		PRINTF("#### start 0x%04x, size 0x%04x, chksum 0x%04x\n",
+			record.address, record.length, record.checksum);
+
+		if (record.address==0) {
+			PRINTF("#### address==0->quitting!\n");
+			break;
+		}
+
+		current_addr += BASE_BIN_RECORD_SIZE;
+
+		/* checksum verification */
+		record_checksum = 0;
+		for (i=0; i<record.length; i++) {
+			record_checksum += ((char*)(current_addr))[i];
+		}
+
+		if (record_checksum!=record.checksum) {
+			printf("wrong checksum (having 0x%04X!=0x%04X)\n", record_checksum,
+				record.checksum);
+			return 0xFFFFFFFF;
+		}
+
+
+		/* clear uninitialized memory */
+		memset((char*)current_dest_addr+PHYS_SDRAM_1, 0, record.address-current_dest_addr);
+		memcpy((char *)record.address+PHYS_SDRAM_1, (char *)current_addr, record.length);
+
+		current_addr += record.length;
+
+		current_dest_addr = record.address + record.length;
+
+		record_num++;
+
+		putc ('.');
+	}
+
+	printf("\n");
+
+	return header.img_start + PHYS_SDRAM_1;
+}
+
+/* ====================================================================== */
+
+U_BOOT_CMD(
+	bootwince,      2,      0,      do_bootwince,
+	"bootwince  - Boot Windows CE from a binary (.bin) image\n",
+	" [address] - load address of Windows CE BIN image.\n"
+);
+#endif	/* CFG_CMD_BIN */
diff -bwpurN zelk-0.9.0/u-boot/common/Makefile u-boot/common/Makefile
--- zelk-0.9.0/u-boot/common/Makefile	2004-10-12 12:06:40.000000000 +0200
+++ u-boot/common/Makefile	2005-01-28 18:38:38.000000000 +0100
@@ -48,7 +48,8 @@ COBJS	= main.o ACEX1K.o altera.o bedbug.
 	  memsize.o miiphybb.o miiphyutil.o \
 	  s_record.o serial.o soft_i2c.o soft_spi.o spartan2.o \
 	  usb.o usb_kbd.o usb_storage.o \
-	  virtex2.o xilinx.o
+	  virtex2.o xilinx.o \
+	  cmd_bin.o
 
 OBJS	= $(AOBJS) $(COBJS)
 
diff -bwpurN zelk-0.9.0/u-boot/include/cmd_confdefs.h u-boot/include/cmd_confdefs.h
--- zelk-0.9.0/u-boot/include/cmd_confdefs.h	2004-10-12 12:06:42.000000000 +0200
+++ u-boot/include/cmd_confdefs.h	2005-01-28 18:52:24.000000000 +0100
@@ -90,6 +90,7 @@
 #define CFG_CMD_REISER	0x0100000000000000U	/* Reiserfs support		*/
 #define CFG_CMD_CDP	0x0200000000000000U	/* Cisco Discovery Protocol 	*/
 #define CFG_CMD_XIMG	0x0400000000000000U	/* Load part of Multi Image	*/
+#define CFG_CMD_BIN	0x0800000000000000U	/* Load a WindowsCE BIN Image	*/
 
 #define CFG_CMD_ALL	0xFFFFFFFFFFFFFFFFU	/* ALL commands			*/
 

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