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google/trogdor: change board ID detect to tristate solution. 

change binary board ID to tri-state mode.

BUG=b:190250108
BRANCH=None
TEST=emerge-trogdor coreboot

Signed-off-by: Sheng-Liang Pan <sheng-liang.pan@quanta.corp-partner.google.com>
Change-Id: I79d1212abc227341be126969ef32e76a635cbdaf
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55563
Reviewed-by: Julius Werner <jwerner@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Sheng-Liang Pan 2021-06-16 16:12:31 +08:00 committed by Julius Werner
parent d4e19bfaba
commit f6d46f3bac
1 changed files with 1 additions and 1 deletions
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src/mainboard/google/trogdor/boardid.c
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@ -11,7 +11,7 @@ uint32_t board_id(void)
const gpio_t pins[] = {[2] = GPIO(31), [1] = GPIO(93), [0] = GPIO(33)};
if (id == UNDEFINED_STRAPPING_ID)
id = gpio_base2_value(pins, ARRAY_SIZE(pins));
id = gpio_binary_first_base3_value(pins, ARRAY_SIZE(pins));
return id;
}