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authorShawn Nematbakhsh <shawnn@chromium.org>2016-10-26 16:11:45 -0700
committerchrome-bot <chrome-bot@chromium.org>2016-12-01 19:59:01 -0800
commit5602f4d5155a6ea0eefbd514871c069b381dbd0a (patch)
tree79b405e4bdbe28e4484595f1f7795f1716c4db8f /board/kevin/board.c
parent2c1626eb45e317d4b705add89409f294a7146919 (diff)
downloadchrome-ec-5602f4d5155a6ea0eefbd514871c069b381dbd0a.tar.gz
i2c: Lock out i2c passthru except for desired ports
Lock out all non-essential i2c passthru ports when system is protected. BUG=chrome-os-partner:58859 BRANCH=gru TEST='ectool i2cxfer 0 0 0 0' on locked system, verify that "ACCESS DENIED" is returned. Change-Id: If4119bbb319aa491d0e79a9ed80c94daa7950c2f Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/403543 Tested-by: Philip Chen <philipchen@chromium.org> Reviewed-by: Aseda Aboagye <aaboagye@chromium.org> Reviewed-by: Philip Chen <philipchen@chromium.org> Commit-Queue: Philip Chen <philipchen@chromium.org> (cherry picked from commit d29fdb5484b994937c6586a50dd2818028f15f3f) Reviewed-on: https://chromium-review.googlesource.com/415493 Commit-Ready: Shawn N <shawnn@chromium.org> Tested-by: Shawn N <shawnn@chromium.org> Reviewed-by: Shawn N <shawnn@chromium.org>
Diffstat (limited to 'board/kevin/board.c')
-rw-r--r--board/kevin/board.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/board/kevin/board.c b/board/kevin/board.c
index 180ad6a025..889ee6ccab 100644
--- a/board/kevin/board.c
+++ b/board/kevin/board.c
@@ -752,3 +752,8 @@ static void pwm_displight_preserve_state(void)
sizeof(pwm_displight_duty), &pwm_displight_duty);
}
DECLARE_HOOK(HOOK_SYSJUMP, pwm_displight_preserve_state, HOOK_PRIO_DEFAULT);
+
+int board_allow_i2c_passthru(int port)
+{
+ return (port == I2C_PORT_VIRTUAL_BATTERY);
+}