* Patch by Nicolas Lacressonniere, 11 Jun 2003:

  Modifications for Atmel AT91RM9200DK ARM920T based development kit
  - Add Atmel DataFlash support for reading and writing.
  - Add possibility to boot a Linux from DataFlash with BOOTM command.
  - Add Flash detection on Atmel AT91RM9200DK
    (between Atmel AT49BV1614 and AT49BV1614A flashes)
  - Replace old Ethernet PHY layer functions
  - Change link address

* Patch by Frank Smith, 9 Jun 2003:
  use CRIT_EXCEPTION for machine check on 4xx

* Patch by Detlev Zundel, 13 Jun 2003:
  added implementation of the "carinfo" command in cmd_immap.c

1 files changed, 16 insertions, 0 deletions

diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
index af62becf4a9..8af7c7c9b7c 100644
--- a/common/cmd_bootm.c
+++ b/common/cmd_bootm.c
@@ -56,6 +56,10 @@
 #include <logbuff.h>
 #endif
 
+#ifdef CONFIG_HAS_DATAFLASH
+#include <dataflash.h>
+#endif
+
 /*
  * Some systems (for example LWMON) have very short watchdog periods;
  * we must make sure to split long operations like memmove() or
@@ -138,6 +142,11 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	printf ("## Booting image at %08lx ...\n", addr);
 
 	/* Copy header so we can blank CRC field for re-calculation */
+#ifdef CONFIG_HAS_DATAFLASH
+	if (addr_dataflash(addr)){
+		read_dataflash(addr, sizeof(image_header_t), (char *)&header);
+	} else
+#endif
 	memmove (&header, (char *)addr, sizeof(image_header_t));
 
 	if (ntohl(hdr->ih_magic) != IH_MAGIC) {
@@ -178,6 +187,13 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	data = addr + sizeof(image_header_t);
 	len  = ntohl(hdr->ih_size);
 
+#ifdef CONFIG_HAS_DATAFLASH
+	if (addr_dataflash(addr)){
+		read_dataflash(data, len, (char *)CFG_LOAD_ADDR);
+		data = CFG_LOAD_ADDR;
+	}
+#endif	
+
 	if (verify) {
 		printf ("   Verifying Checksum ... ");
 		if (crc32 (0, (char *)data, len) != ntohl(hdr->ih_dcrc)) {