This is used on the AXP boards, to pad u-boot.img to the desired offset in SPI flash (only this boot target supported right now). This offset is used by the SPL then to load u-boot.img into SDRAM and execute it there.
Signed-off-by: Stefan Roese sr@denx.de ---
tools/kwbimage.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/tools/kwbimage.c b/tools/kwbimage.c index 1120e9b..9f37a36 100644 --- a/tools/kwbimage.c +++ b/tools/kwbimage.c @@ -15,6 +15,7 @@ #include <image.h> #include <stdint.h> #include "kwbimage.h" +#include <config.h>
#define ALIGN_SUP(x, a) (((x) + (a - 1)) & ~(a - 1))
@@ -845,6 +846,16 @@ static int kwbimage_generate(struct image_tool_params *params, sizeof(struct ext_hdr_v0); } else { alloc_len = image_headersz_v1(params, NULL); +#if defined(CONFIG_SYS_SPI_U_BOOT_OFFS) + if (alloc_len > CONFIG_SYS_SPI_U_BOOT_OFFS) { + fprintf(stderr, "Error: Image header (incl. SPL image) too big!\n"); + fprintf(stderr, "header=0x%x CONFIG_SYS_SPI_U_BOOT_OFFS=0x%x!\n", + alloc_len, CONFIG_SYS_SPI_U_BOOT_OFFS); + fprintf(stderr, "Increase CONFIG_SYS_SPI_U_BOOT_OFFS!\n"); + } else { + alloc_len = CONFIG_SYS_SPI_U_BOOT_OFFS; + } +#endif }
hdr = malloc(alloc_len);