[PATCH 7/7] ARM: i.MX: xload-esdhc: Find entry in image

[Sascha Hauer]

The binary image generated by barebox contains an instruction at the
very beginning to jump over the header. However, when the image is
written to a SD card and the first 512 bytes are skipped in order to
preserve the partition table then this jump instruction is lost. Instead
of relying on the jump instruction at the image beginning calculate
the image entry from the i.MX header instead of relying on the beginning
of the image being the entry point.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
---
 arch/arm/mach-imx/xload-esdhc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/xload-esdhc.c b/arch/arm/mach-imx/xload-esdhc.c
index 0ff58c8..e774e4e 100644
--- a/arch/arm/mach-imx/xload-esdhc.c
+++ b/arch/arm/mach-imx/xload-esdhc.c
@@ -260,6 +260,7 @@ int imx6_esdhc_start_image(int instance)
 	u32 *ivt = buf + SZ_1K;
 	int ret, len;
 	void __noreturn (*bb)(void);
+	unsigned int ofs;
 
 	len = imx_image_size();
 	len = ALIGN(len, SECTOR_SIZE);
@@ -283,7 +284,9 @@ int imx6_esdhc_start_image(int instance)
 
 	pr_debug("Image loaded successfully\n");
 
-	bb = buf;
+	ofs = *(ivt + 1) - *(ivt + 8);
+
+	bb = buf + ofs;
 
 	bb();
 }
-- 
2.7.0