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warp7: hab: Set environment variable indicating IVT offset

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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>
Tested-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
This commit is contained in:
Bryan O'Donoghue 2018-04-24 18:46:45 +01:00 • committed by Stefano Babic
parent c0df0caeb8
commit d9cb9aec74
1 changed files with 2 additions and 0 deletions
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2
include/configs/warp7.h
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@ -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" \