[new uImage] Define a API for image handling operations

- Add inline helper macros for basic header processing
- Move common non inline code common/image.c
- Replace direct header access with the API routines
- Rename IH_CPU_* to IH_ARCH_*

Signed-off-by: Marian Balakowicz <m8@semihalf.com>

1 files changed, 4 insertions, 8 deletions

diff --git a/common/cmd_usb.c b/common/cmd_usb.c
index c6b17c2..db2e754 100644
--- a/common/cmd_usb.c
+++ b/common/cmd_usb.c
@@ -311,7 +311,7 @@ int do_usbboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 	char *boot_device = NULL;
 	char *ep;
 	int dev, part=1, rcode;
-	ulong addr, cnt, checksum;
+	ulong addr, cnt;
 	disk_partition_t info;
 	image_header_t *hdr;
 	block_dev_desc_t *stor_dev;
@@ -388,23 +388,19 @@ int do_usbboot (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 
 	hdr = (image_header_t *)addr;
 
-	if (ntohl(hdr->ih_magic) != IH_MAGIC) {
+	if (!image_get_magic (hdr)) {
 		printf("\n** Bad Magic Number **\n");
 		return 1;
 	}
 
-	checksum = ntohl(hdr->ih_hcrc);
-	hdr->ih_hcrc = 0;
-
-	if (crc32 (0, (uchar *)hdr, sizeof(image_header_t)) != checksum) {
+	if (!image_check_hcrc (hdr)) {
 		puts ("\n** Bad Header Checksum **\n");
 		return 1;
 	}
-	hdr->ih_hcrc = htonl(checksum);	/* restore checksum for later use */
 
 	print_image_hdr (hdr);
 
-	cnt = (ntohl(hdr->ih_size) + sizeof(image_header_t));
+	cnt = image_get_image_size (hdr);
 	cnt += info.blksz - 1;
 	cnt /= info.blksz;
 	cnt -= 1;