Aaron Durbin (adurbin@google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/4977
-gerrit
commit 615151434760920123815c3f461b6fe855c741fe Author: Aaron Durbin adurbin@chromium.org Date: Mon Nov 18 13:50:02 2013 -0600
rambi: make ramids non-legacy gpio inputs
The romstage code for rambi uses the mmio way of reading inputs. However, this is a problem is the GPIOs are set up as legacy mode. Subsequent warm resets mean the ram_id is read incorrectly. Ensure the ram_id is read consistently by keeping the GPIOs for ram_id in mmio mode.
BUG=chrome-os-partner:24085 BRANCH=None TEST=Built and booted. And rebooted. Now seeing consistent ram_id values on warm resets.
Change-Id: Ieff98c000be80998854f325754f1e819975d2be5 Signed-off-by: Aaron Durbin adurbin@chromium.org Reviewed-on: https://chromium-review.googlesource.com/177230 Reviewed-by: Shawn Nematbakhsh shawnn@chromium.org --- src/mainboard/google/rambi/gpio.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/src/mainboard/google/rambi/gpio.c b/src/mainboard/google/rambi/gpio.c index 7d44968..dfe880a 100644 --- a/src/mainboard/google/rambi/gpio.c +++ b/src/mainboard/google/rambi/gpio.c @@ -200,9 +200,9 @@ static const struct soc_gpio_map gpssus_gpio_map[] = { GPIO_NC, /* S534 - NC */ GPIO_OUT_HIGH, /* S535 - LTE_DISABLE_L */ GPIO_NC, /* S536 - NC */ - GPIO_INPUT, /* S537 - RAM_ID0 */ - GPIO_INPUT, /* S538 - RAM_ID1 */ - GPIO_INPUT, /* S539 - RAM_ID2 */ + GPIO_FUNC0, /* S537 - RAM_ID0 */ + GPIO_FUNC0, /* S538 - RAM_ID1 */ + GPIO_FUNC0, /* S539 - RAM_ID2 */ GPIO_NC, /* S540 - NC */ GPIO_NC, /* S541 - NC */ GPIO_NC, /* S542 - NC */