[U-Boot,v3,15/17] warp7: hab: Set environment variable indicating IVT offset

Message ID 1523633481-20914-16-git-send-email-bryan.odonoghue@linaro.org
State Superseded
Delegated to: Stefano Babic
Headers show
  • warp7: Enable automated OPTEE/HAB boot flow
Related show

Commit Message

Bryan O'Donoghue April 13, 2018, 3:31 p.m.
This patch introduces the environment variable ivt_offset. When we define a
load address for Linux or DTB or any file the IVT associated with that file
is prepended. We extract the actual load addresses from u-boot.cfg and feed
these values into the code-signing process - hence we want u-boot to have
the real load addresses exported in uboot.cfg.

ivt_offset represents the addition or subtraction from the load address
that must happen to find an IVT header.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
 include/configs/warp7.h | 2 ++
 1 file changed, 2 insertions(+)


diff --git a/include/configs/warp7.h b/include/configs/warp7.h
index 454bc1c..fe9b7d5 100644
--- a/include/configs/warp7.h
+++ b/include/configs/warp7.h
@@ -10,6 +10,7 @@ 
 #define __WARP7_CONFIG_H
 #include "mx7_common.h"
+#include <imximage.h>
 #define PHYS_SDRAM_SIZE			SZ_512M
@@ -50,6 +51,7 @@ 
 	"finduuid=part uuid mmc 0:${rootpart} uuid\0" \
 	"mmcargs=setenv bootargs console=${console},${baudrate} " \
 		"root=PARTUUID=${uuid} rootwait rw\0" \
+	"ivt_offset=" __stringify(BOOTROM_IVT_HDR_OFFSET)"\0"\
 	"warp7_auth_or_fail=hab_auth_img_or_fail ${hab_ivt_addr} ${filesize} 0;\0" \
 	"loadbootscript=" \
 		"load mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \