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chromium: Update docs to clone vboot_reference directly

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We don't need a full checkout of Chrome OS to build U-Boot with
Chromium OS verified boot. Update the instructions accordingly and fix a
typo which joins the output directory and defconfig.

Signed-off-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Simon Glass 2019-07-10 11:04:13 -06:00 committed by Tom Rini
parent ea804eb340
commit 1b96da67a0
1 changed files with 9 additions and 3 deletions
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12
doc/README.chromium
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@ -33,12 +33,18 @@ To obtain:
cd u-boot
git checkout cros-master
cd ..
git clone https://chromium.googlesource.com/chromiumos/platform/vboot_reference
cd vboot_reference
git checkout 45964294
# futility: updater: Correct output version for Snow
To build for sandbox:
UB=/tmp/b/chromeos_sandbox # U-Boot build directory
CROS=/home/sglass/cosarm # Chromium OS directory
make O=$UB/chromeos_sandbox_defconfig
make O=$UB -j20 -s VBOOT_SOURCE=$CROS/src/platform/vboot_reference \
cd u-boot
make O=$UB chromeos_sandbox_defconfig
make O=$UB -j20 -s VBOOT_SOURCE=/path/to/vboot_reference \
MAKEFLAGS_VBOOT=DEBUG=1 QUIET=1
Replace sandbox with another supported target.