Patch by Robert Schwebel, 13 May 2004:

Add 'imgextract' command: extract one part of a multi file image.

CHANGELOG

@@ -2,6 +2,9 @@
 Changes since U-Boot 1.1.1:
 ======================================================================
 
+* Patch by Robert Schwebel, 13 May 2004:
+  Add 'imgextract' command: extract one part of a multi file image.
+
 * Patches by Jon Loeliger, 11 May 2004:
   Dynamically handle REV1 and REV2 MPC85xx parts.
     (Jon Loeliger, 10-May-2004).

common/cmd_ximg.c

+/*
+ * (C) Copyright 2000-2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 2003
+ * Kai-Uwe Bloem, Auerswald GmbH & Co KG, <linux-development@auerswald.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
+ */
+
+#if (CONFIG_COMMANDS & CFG_CMD_XIMG)
+
+/*
+ * Multi Image extract
+ */
+#include <common.h>
+#include <command.h>
+#include <image.h>
+#include <asm/byteorder.h>
+
+int
+do_imgextract(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
+{
+	ulong addr = load_addr, dest = 0;
+	ulong data, len, checksum;
+	ulong *len_ptr;
+	int i, verify, part = 0;
+	char pbuf[10], *s;
+	image_header_t header;
+
+	s = getenv("verify");
+	verify = (s && (*s == 'n')) ? 0 : 1;
+
+	if (argc > 1) {
+		addr = simple_strtoul(argv[1], NULL, 16);
+	}
+	if (argc > 2) {
+		part = simple_strtoul(argv[2], NULL, 16);
+	}
+	if (argc > 3) {
+		dest = simple_strtoul(argv[3], NULL, 16);
+	}
+
+	printf("## Copying from image at %08lx ...\n", addr);
+
+	/* Copy header so we can blank CRC field for re-calculation */
+	memmove(&header, (char *) addr, sizeof (image_header_t));
+
+	if (ntohl(header.ih_magic) != IH_MAGIC) {
+		printf("Bad Magic Number\n");
+		return 1;
+	}
+
+	data = (ulong) & header;
+	len = sizeof (image_header_t);
+
+	checksum = ntohl(header.ih_hcrc);
+	header.ih_hcrc = 0;
+
+	if (crc32(0, (char *) data, len) != checksum) {
+		printf("Bad Header Checksum\n");
+		return 1;
+	}
+#ifdef DEBUG
+	print_image_hdr((image_header_t *) addr);
+#endif
+
+	data = addr + sizeof (image_header_t);
+	len = ntohl(header.ih_size);
+
+	if (header.ih_type != IH_TYPE_MULTI) {
+		printf("Wrong Image Type for %s command\n", cmdtp->name);
+		return 1;
+	}
+
+	if (header.ih_comp != IH_COMP_NONE) {
+		printf("Wrong Compression Type for %s command\n", cmdtp->name);
+		return 1;
+	}
+
+	if (verify) {
+		printf("   Verifying Checksum ... ");
+		if (crc32(0, (char *) data, len) != ntohl(header.ih_dcrc)) {
+			printf("Bad Data CRC\n");
+			return 1;
+		}
+		printf("OK\n");
+	}
+
+	len_ptr = (ulong *) data;
+
+	data += 4;		/* terminator */
+	for (i = 0; len_ptr[i]; ++i) {
+		data += 4;
+		if (argc > 2 && part > i) {
+			u_long tail;
+			len = ntohl(len_ptr[i]);
+			tail = len % 4;
+			data += len;
+			if (tail) {
+				data += 4 - tail;
+			}
+		}
+	}
+	if (argc > 2 && part >= i) {
+		printf("Bad Image Part\n");
+		return 1;
+	}
+	len = ntohl(len_ptr[part]);
+
+	if (argc > 3) {
+		memcpy((char *) dest, (char *) data, len);
+	}
+
+	sprintf(pbuf, "%8lx", data);
+	setenv("fileaddr", pbuf);
+	sprintf(pbuf, "%8lx", len);
+	setenv("filesize", pbuf);
+
+	return 0;
+}
+
+U_BOOT_CMD(imxtract, 4, 1, do_imgextract,
+	   "imxtract- extract a part of a multi-image\n",
+	   "addr part [dest]\n"
+	   "    - extract <part> from image at <addr> and copy to <dest>\n");
+
+#endif	/* CONFIG_COMMANDS & CFG_CMD_XIMG */

doc/README.mpc85xxads

@@ -5,10 +5,12 @@ Created 10/15/03
 -----------------------------------------
 
 0. Toolchain
-The Binutils in current ELDK toolchain will not support MPC85xx chip. You need
-use the newest binutils-2.14.tar.bz2 from http://ftp.gnu.org/gnu/binutils.
+The Binutils in ELDK toolchain 3.0 or earlier does not support the
+MPC85xx chip. You need use the newest binutils-2.14.tar.bz2 from
+http://ftp.gnu.org/gnu/binutils.
 
 1. SWITCH SETTINGS & JUMPERS
+
 1.1 First, make sure the board default setting is consistent with the document
     shipped with your board. Then apply the following changes:
     SW3[1-6]="all OFF"  (boot from 32bit flash, no boot sequence is used)
@@ -19,11 +21,13 @@ use the newest binutils-2.14.tar.bz2 from http://ftp.gnu.org/gnu/binutils.
     SW22[1-4]="OFF OFF ON OFF"
     SW5[1-10[="ON ON OFF OFF OFF OFF OFF OFF OFF OFF"
     J1 = "Enable Prog" (Make sure your flash is programmable for development)
+
 1.2 If you want to test PCI functionality with a 33Mhz PCI card, you will
     have to change the system clock from the default 66Mhz to 33Mhz by
     setting SW15[1]="OFF" and SW17[8]="OFF". After that you may also need
     double your platform clock(SW6) because the system clock is now only
     half of its original value.
+
 1.3 SW6 is a very important switch, it decides your platform clock and CPU
     clock based on the on-board system clock(default 66MHz). Check the
     document along with your board for details.
@@ -52,7 +56,9 @@ use the newest binutils-2.14.tar.bz2 from http://ftp.gnu.org/gnu/binutils.
 	arch/ppc/configs/mpc8540_ads_defconfig
 	arch/ppc/configs/mpc8560_ads_defconfig
 
+
 3. DEFINITIONS AND COMPILATION
+
 3.1 Explanation on NEW definitions in include/configs/MPC8540ADS.h and include/
     configs/MPC8560ADS.h
     CONFIG_BOOKE            BOOKE(e.g. Motorola MPC85xx, IBM 440, etc)
@@ -74,7 +80,6 @@ use the newest binutils-2.14.tar.bz2 from http://ftp.gnu.org/gnu/binutils.
 			    if you can program the flash directly, undef this.
     Other than the above definitions, the rest in the config files are straightforward.
 
-
 3.2 Compilation
    export CROSS_COMPILE=your-cross-compile-prefix(assuming you're using BASH shell)
    cd u-boot
@@ -82,7 +87,9 @@ use the newest binutils-2.14.tar.bz2 from http://ftp.gnu.org/gnu/binutils.
    make MPC8560ADS_config (or make MPC8540ADS_config)
    make
 
+
 4.  Notes:
+
 4.1 When connecting with kermit, the following commands must be present.in
    your .kermrc file. These are especially important when booting as
    MPC8560, as the serial console will not work without them:
@@ -93,7 +100,6 @@ set handshake none
 set flow-control none
 robust
 
-   
 4.2 Sometimes after U-Boot is up, the 'tftp' won't work well with TSEC ethernet. If that
    happens, you can try the following steps to make network work:
    MPC8560ADS>tftp 1000000 pImage
@@ -103,10 +109,10 @@ robust
    >1
    >. (to quit this memory operation)
    MPC8560ADS>tftp 1000000 pImage
+
 4.3 If you're one of the early developers using the Rev1 8540/8560 chips, please use U-Boot
    1.0.0, as the newer silicon will only support Rev2 and future revisions of 8540/8560.
 
-
 4.4 Reflash U-boot Image using U-boot
 
     => tftp 0 u-boot.bin
@@ -116,6 +122,7 @@ robust
 
 
 5. Screen dump:
+
 5.1 MPC8540ADS board
 U-Boot 1.0.0-pre (Oct 15 2003 - 13:40:33)
 

include/cmd_confdefs.h

@@ -89,6 +89,7 @@
 #define CFG_CMD_NFS	0x0080000000000000U	/* NFS support			*/
 #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_ALL	0xFFFFFFFFFFFFFFFFU	/* ALL commands			*/
 

include/configs/ADNPESC1.h

@@ -599,6 +599,7 @@
 				 CFG_CMD_SCSI	| \
 				 CFG_CMD_VFD	| \
 				 CFG_CMD_USB	| \
+				 CFG_CMD_XIMG	| \
 				 __SPI_CMD_OFF	) )
 
 

include/configs/DK1C20.h

@@ -475,7 +475,8 @@
 				 CFG_CMD_SCSI	| \
 				 CFG_CMD_SPI	| \
 				 CFG_CMD_VFD	| \
-				 CFG_CMD_USB	) )
+				 CFG_CMD_USB	| \
+				 CFG_CMD_XIMG	) )
 
 
 #include <cmd_confdefs.h>

include/configs/DK1S10.h

@@ -484,7 +484,8 @@
 				 CFG_CMD_SCSI	| \
 				 CFG_CMD_SPI	| \
 				 CFG_CMD_VFD	| \
-				 CFG_CMD_USB	) )
+				 CFG_CMD_USB	| \
+				 CFG_CMD_XIMG	) )
 
 
 #include <cmd_confdefs.h>

include/configs/LANTEC.h

@@ -107,7 +107,8 @@
 					     & ~CFG_CMD_SCSI	\
 					     & ~CFG_CMD_SPI	\
 					     & ~CFG_CMD_USB	\
-					     & ~CFG_CMD_VFD	)
+					     & ~CFG_CMD_VFD	\
+					     & ~CFG_CMD_XIMG	)
 
 #if CONFIG_LANTEC >= 2
 #define	CONFIG_RTC_MPC8xx		/* use internal RTC of MPC8xx	*/

include/configs/MPC8260ADS.h

@@ -199,7 +199,8 @@
 				 CFG_CMD_SCSI	| \
 				 CFG_CMD_SPI	| \
 				 CFG_CMD_USB	| \
-				 CFG_CMD_VFD
+				 CFG_CMD_VFD	| \
+				 CFG_CMD_XIMG
 
 #if CONFIG_ADSTYPE >= CFG_PQ2FADS
 #define CONFIG_COMMANDS		(CFG_CMD_ALL & ~( \

include/configs/MPC8266ADS.h

@@ -168,7 +168,8 @@
 				 CFG_CMD_SCSI	| \
 				 CFG_CMD_SPI	| \
 				 CFG_CMD_VFD	| \
-				 CFG_CMD_USB	) )
+				 CFG_CMD_USB	| \
+				 CFG_CMD_XIMG	) )
 
 /* Define a command string that is automatically executed when no character
  * is read on the console interface withing "Boot Delay" after reset.

include/configs/RBC823.h

@@ -114,7 +114,8 @@
 				~CFG_CMD_SETGETDCR & \
 				~CFG_CMD_SPI	& \
 				~CFG_CMD_USB	& \
-				~CFG_CMD_VFD	)
+				~CFG_CMD_VFD	& \
+				~CFG_CMD_XIMG	)
 
 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
 #include <cmd_confdefs.h>

include/configs/RPXClassic.h

@@ -93,7 +93,7 @@
 #define	CONFIG_CLOCKS_IN_MHZ	1	/* clocks passsed to Linux in MHz */
 
 
-#define CONFIG_COMMANDS	(CFG_CMD_ALL & ~CFG_CMD_NONSTD | CFG_CMD_ELF)
+#define CONFIG_COMMANDS	((CFG_CMD_ALL & ~CFG_CMD_NONSTD) | CFG_CMD_ELF)
 
 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
 #include <cmd_confdefs.h>

include/configs/ZPC1900.h

@@ -134,7 +134,8 @@
 				 CFG_CMD_SCSI	| \
 				 CFG_CMD_SPI	| \
 				 CFG_CMD_USB	| \
-				 CFG_CMD_VFD    ) )
+				 CFG_CMD_VFD    | \
+				 CFG_CMD_XIMG	) )
 
 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
 #include <cmd_confdefs.h>

include/configs/ep8260.h

@@ -275,6 +275,7 @@
 					~CFG_CMD_DCR    & \
 					~CFG_CMD_DHCP   & \
 					~CFG_CMD_DOC    & \
+					~CFG_CMD_DTT	& \
 					~CFG_CMD_EEPROM & \
 					~CFG_CMD_FDC    & \
 					~CFG_CMD_FDOS	& \
@@ -287,12 +288,12 @@
 					~CFG_CMD_NAND	& \
 					~CFG_CMD_PCI    & \
 					~CFG_CMD_PCMCIA & \
-					~CFG_CMD_SCSI   & \
 					~CFG_CMD_REISER	& \
+					~CFG_CMD_SCSI   & \
 					~CFG_CMD_SPI	& \
 					~CFG_CMD_USB	& \
 					~CFG_CMD_VFD	& \
-					~CFG_CMD_DTT )
+					~CFG_CMD_XIMG	)
 
 /* Where do the internal registers live? */
 #define CFG_IMMR               0xF0000000

include/configs/hymod.h

@@ -191,7 +191,8 @@
 					CFG_CMD_REISER	| \
 					CFG_CMD_SCSI	| \
 					CFG_CMD_SPI	| \
-					CFG_CMD_VFD	) )
+					CFG_CMD_VFD	| \
+					CFG_CMD_XIMG	) )
 
 /* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
 #include <cmd_confdefs.h>