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Add NV flag to default boot legacy OS

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In developer mode, this option will make the system try to boot into
a legacy OS first after the 30 second timeout. This removes the need to
press a key during boot to try legacy mode and the need to remove the
write protect screw to boot legacy as default.

BUG=chromium:310697
BRANCH=none
TEST=make runtests

Change-Id: I9a9f64c14ad015e21d08eec36e8fc187189cd2f2
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/304077
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
Mary Ruthven
2015-10-06 10:42:31 -07:00
committed by chrome-bot
parent 73a6372d22
commit 12a55f255a
17 changed files with 205 additions and 22 deletions
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1
firmware/lib/vboot_api_init.c
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@@ -323,6 +323,7 @@ VbError_t VbInit(VbCommonParams *cparams, VbInitParams *iparams)
VbNvSet(&vnc, VBNV_DEV_BOOT_LEGACY, 0);
VbNvSet(&vnc, VBNV_DEV_BOOT_SIGNED_ONLY, 0);
VbNvSet(&vnc, VBNV_DEV_BOOT_FASTBOOT_FULL_CAP, 0);
VbNvSet(&vnc, VBNV_DEV_DEFAULT_BOOT, 0);
VbNvSet(&vnc, VBNV_FASTBOOT_UNLOCK_IN_FW, 0);
/*
* Back up any changes now, so these values can't be forgotten