diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2014-08-05 14:05:34 -0500 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-03-26 00:26:40 +0100 |
| commit | 8385cdf10bdded43fc76a96544b567f51f1d197e (patch) | |
| tree | acfdeb40ba71f2f5bef0a86a8e9e986d15e5803a /src/mainboard/google | |
| parent | 2b2b853b25ce3e9b1984c5ba3d820b0af91bef5c (diff) | |
ryu: configure EC I2C pads as open drain
The I2C pads connected to the EC are pulled to 3.3V. Therefore
the pads need to be configured as open drain.
BUG=chrome-os-partner:29981
BRANCH=None
TEST=Built and booted through depthcharge on ryu
Change-Id: Ie5eadfe6aca78eb31fbca4e8d8117d1061acbbec
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 1530e7e7f500be47355eada56591ac2dbf1e9326
Original-Change-Id: Ia4ad2377d01296235fc7efbba72fa790016c04af
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/211135
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/8916
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Diffstat (limited to 'src/mainboard/google')
| -rw-r--r-- | src/mainboard/google/rush_ryu/romstage.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mainboard/google/rush_ryu/romstage.c b/src/mainboard/google/rush_ryu/romstage.c index e570c99314..307c1f7008 100644 --- a/src/mainboard/google/rush_ryu/romstage.c +++ b/src/mainboard/google/rush_ryu/romstage.c @@ -31,9 +31,9 @@ static const struct pad_config padcfgs[] = { /* TPM on I2C3 */ PAD_CFG_SFIO(CAM_I2C_SCL, PINMUX_INPUT_ENABLE, I2C3), PAD_CFG_SFIO(CAM_I2C_SDA, PINMUX_INPUT_ENABLE, I2C3), - /* EC on I2C2 */ - PAD_CFG_SFIO(GEN2_I2C_SCL, PINMUX_INPUT_ENABLE, I2C2), - PAD_CFG_SFIO(GEN2_I2C_SDA, PINMUX_INPUT_ENABLE, I2C2), + /* EC on I2C2 - pulled to 3.3V */ + PAD_CFG_SFIO(GEN2_I2C_SCL, PINMUX_OPEN_DRAIN|PINMUX_INPUT_ENABLE, I2C2), + PAD_CFG_SFIO(GEN2_I2C_SDA, PINMUX_OPEN_DRAIN|PINMUX_INPUT_ENABLE, I2C2), /* WP_L */ PAD_CFG_GPIO_INPUT(KB_ROW1, PINMUX_PULL_NONE), }; |