#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
+#include "../arch/arm/include/asm/arch-sunxi/spl.h"
-/* boot head definition from sun4i boot code */
-struct boot_file_head {
- uint32_t b_instruction; /* one intruction jumping to real code */
- uint8_t magic[8]; /* ="eGON.BT0" or "eGON.BT1", not C-style str */
- uint32_t check_sum; /* generated by PC */
- uint32_t length; /* generated by PC */
- /*
- * We use a simplified header, only filling in what is needed
- * by the boot ROM. To be compatible with Allwinner tools we
- * would need to implement the proper fields here instead of
- * padding.
- */
- uint8_t pad[12]; /* align to 32 bytes */
-};
-
-#define BOOT0_MAGIC "eGON.BT0"
#define STAMP_VALUE 0x5F0A6C39
/* check sum functon from sun4i boot code */
#define SUN4I_SRAM_SIZE 0x7600 /* 0x7748+ is used by BROM */
#define SRAM_LOAD_MAX_SIZE (SUN4I_SRAM_SIZE - sizeof(struct boot_file_head))
-#define BLOCK_SIZE 512
+
+/*
+ * BROM (at least on A10 and A20) requires NAND-images to be explicitly aligned
+ * to a multiple of 8K, and rejects the image otherwise. MMC-images are fine
+ * with 512B blocks. To cater for both, align to the largest of the two.
+ */
+#define BLOCK_SIZE 0x2000
struct boot_img {
struct boot_file_head header;
return EXIT_FAILURE;
}
- memset(img.pad, 0, BLOCK_SIZE);
+ memset(&img, 0, sizeof(img));
/* get input file size */
file_size = lseek(fd_in, 0, SEEK_END);
ALIGN(file_size + sizeof(struct boot_file_head), BLOCK_SIZE);
img.header.b_instruction = cpu_to_le32(img.header.b_instruction);
img.header.length = cpu_to_le32(img.header.length);
+
+ memcpy(img.header.spl_signature, SPL_SIGNATURE, 3); /* "sunxi" marker */
+ img.header.spl_signature[3] = SPL_HEADER_VERSION;
+
gen_check_sum(&img.header);
count = write(fd_out, &img, le32_to_cpu(img.header.length));