diff options
| author | Douglas Anderson <dianders@chromium.org> | 2016-08-04 09:27:40 -0700 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-08-09 18:01:34 +0200 |
| commit | 4884c5d52d23ca02be326d41233dc16b829d6535 (patch) | |
| tree | 97dfb41d7ececb01a466bb604d5e62e190b31efc /src | |
| parent | 9d130a9e1038e406c4be74a70a99f5530ef5c55d (diff) | |
google/gru: Fix rk3399-gru write protect
The write protect GPIO is active high, not active low.
After fixing I can see this after removing the write-protect screw:
$ crossystem | grep wpsw_boot
wpsw_boot = 0
Putting the screw in shows:
$ crossystem | grep wpsw_boot
wpsw_boot = 1
Caution: this CL contains explicit material. It explicitly sets the
pullup on the WP GPIO even though that's the boot default.
BRANCH=None
BUG=chrome-os-partner:55933
TEST=See desc.
Change-Id: I23e17e3bbbe7dcd83e81814de46117491e61baaa
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: e6969f4be42c00c6e88bbb14929cf0454462ad21
Original-Change-Id: Ie65db9cf182b0a0a05ae412f86904df6b239e0f4
Original-Signed-off-by: Douglas Anderson <dianders@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/366131
Original-Tested-by: Brian Norris <briannorris@chromium.org>
Original-Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: https://review.coreboot.org/16115
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/google/gru/chromeos.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/src/mainboard/google/gru/chromeos.c b/src/mainboard/google/gru/chromeos.c index f8aa4fa4f9..cc2b3b6604 100644 --- a/src/mainboard/google/gru/chromeos.c +++ b/src/mainboard/google/gru/chromeos.c @@ -22,10 +22,16 @@ #include "board.h" +int get_write_protect_state(void) +{ + return gpio_get(GPIO_WP); +} + void fill_lb_gpios(struct lb_gpios *gpios) { struct lb_gpio chromeos_gpios[] = { - {GPIO_WP.raw, ACTIVE_LOW, gpio_get(GPIO_WP), "write protect"}, + {GPIO_WP.raw, ACTIVE_HIGH, get_write_protect_state(), + "write protect"}, {-1, ACTIVE_HIGH, get_recovery_mode_switch(), "recovery"}, {GPIO_BACKLIGHT.raw, ACTIVE_HIGH, -1, "backlight"}, {GPIO_EC_IN_RW.raw, ACTIVE_HIGH, -1, "EC in RW"}, @@ -50,14 +56,9 @@ int get_recovery_mode_switch(void) EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEYBOARD_RECOVERY)); } -int get_write_protect_state(void) -{ - return !gpio_get(GPIO_WP); -} - void setup_chromeos_gpios(void) { - gpio_input(GPIO_WP); + gpio_input_pullup(GPIO_WP); gpio_input_pullup(GPIO_EC_IN_RW); gpio_input_pullup(GPIO_EC_IRQ); } |