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[16/18] warp7: hab: Set environment variable indicating IVT offset

Message ID 1522419526-29494-17-git-send-email-bryan.odonoghue@linaro.org
State New
Headers show
Series warp7: Enable automated OPTEE/HAB boot flow | expand

Commit Message

Bryan O'Donoghue March 30, 2018, 2:18 p.m. UTC 
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 mbox series

Patch

diff --git a/include/configs/warp7.h b/include/configs/warp7.h
index 712850e..adf25ac 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" \
 	"loadcmd=fatload\0" \
 	"loadbootscript=" \