diff options
| author | Yen Lin <yelin@nvidia.com> | 2015-05-29 14:36:19 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2015-07-09 00:09:08 +0200 |
| commit | 13fb74927ee3d3527494622ca022010c519edd26 (patch) | |
| tree | 3ddb3fa2674deca6415e3bfdd443e37206afe0d2 /src/soc/nvidia | |
| parent | cc74221581f0b21dcf288532267da01680eb9cc1 (diff) | |
| download | coreboot-13fb74927ee3d3527494622ca022010c519edd26.tar.xz | |
t210: i2c6: enable SOR_SAFE and DPAUX1 clocks for i2c6 to work
I2C6 controller needs SOR_SAFE and DPAUX1 clocks to work. These 2 clocks
are mistakenly enabled by MBIST. MBIST fix will be submitted next, which
will disable these 2 clocks as initial states. Enable these 2 clocks now
so I2C6 will continue to work after MBIST fix.
BUG=None
BRANCH=None
TEST=Tested on Smaug, make sure that panel shows display
(I2C6 is used to turn on backlight)
Change-Id: Id47453e784d53fd6831e8d19a8d57c04c4e1f82f
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: 83e935f100be85e1e831a3f9f16962304f7cd7d6
Original-Signed-off-by: Yen Lin <yelin@nvidia.com>
Original-Change-Id: If312881c94570066bdc54f0f5c48226e862bddc6
Original-Reviewed-on: https://chromium-review.googlesource.com/282415
Original-Reviewed-by: Tom Warren <twarren@nvidia.com>
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/10840
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/soc/nvidia')
| -rw-r--r-- | src/soc/nvidia/tegra210/i2c6.c | 3 | ||||
| -rw-r--r-- | src/soc/nvidia/tegra210/include/soc/clock.h | 2 |
2 files changed, 5 insertions, 0 deletions
diff --git a/src/soc/nvidia/tegra210/i2c6.c b/src/soc/nvidia/tegra210/i2c6.c index 915a5386e9..92130577c3 100644 --- a/src/soc/nvidia/tegra210/i2c6.c +++ b/src/soc/nvidia/tegra210/i2c6.c @@ -65,6 +65,9 @@ void soc_configure_i2c6pad(void) */ soc_configure_host1x(); + /* enable SOR_SAFE and DPAUX_1 clocks */ + clock_enable_y(CLK_Y_DPAUX1 | CLK_Y_SOR_SAFE); + /* Now we can write the I2C6 mux in DPAUX */ write32((void *)DPAUX_HYBRID_PADCTL, I2C6_PADCTL); /* Finally, power up the pads */ diff --git a/src/soc/nvidia/tegra210/include/soc/clock.h b/src/soc/nvidia/tegra210/include/soc/clock.h index ff9b282eaa..8564c83df3 100644 --- a/src/soc/nvidia/tegra210/include/soc/clock.h +++ b/src/soc/nvidia/tegra210/include/soc/clock.h @@ -158,7 +158,9 @@ enum { CLK_X_SPARE = 0x1 << 0, CLK_Y_APE = 0x1 << 6, + CLK_Y_DPAUX1 = 0x1 << 15, CLK_Y_QSPI = 0x1 << 19, + CLK_Y_SOR_SAFE = 0x1 << 30, }; enum { |