diff options
| author | Hung-Te Lin <hungte@chromium.org> | 2014-04-18 00:32:41 +0800 |
|---|---|---|
| committer | Marc Jones <marc.jones@se-eng.com> | 2014-12-16 23:30:52 +0100 |
| commit | 066b16442956ad9297c40b040b110b92a0dab31d (patch) | |
| tree | ca2da298c20a120fc1115a4fa4f9efe26d8c2a78 /src/soc/nvidia/tegra124/sor.c | |
| parent | 47e3cf8c7feec930388b70558cee45c09d787b77 (diff) | |
tegra124: Always enable DC when attaching SOR.
We found that without enabling DC in tegra_dc_sor_enable_dc, kernel would have
problem showing the text console before graphics interface is initialized, for
example "chromeos factory install shim (text only)" or the "splash screen".
BRANCH=none
BUG=chrome-os-partner:28082
TEST=emerge-nyan coreboot chromeos-bootimage
Boots factory install shim and see text console.
Original-Change-Id: I6fce963ceddd125dd52789d2ec843cc2ee05f1f5
Original-Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/195388
(cherry picked from commit 375a86be9b23650cd96e46b07c7a0b5c10970797)
Signed-off-by: Marc Jones <marc.jones@se-eng.com>
Change-Id: Ib75e3ffac9b216c7486845cb8459dd8952d51fe6
Reviewed-on: http://review.coreboot.org/7770
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src/soc/nvidia/tegra124/sor.c')
| -rw-r--r-- | src/soc/nvidia/tegra124/sor.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/soc/nvidia/tegra124/sor.c b/src/soc/nvidia/tegra124/sor.c index d82020aa31..0e96764b60 100644 --- a/src/soc/nvidia/tegra124/sor.c +++ b/src/soc/nvidia/tegra124/sor.c @@ -659,7 +659,8 @@ static void tegra_dc_sor_enable_dc(struct tegra_dc_sor_data *sor) WRITEL(reg_val | WRITE_MUX_ACTIVE, &disp_ctrl->cmd.state_access); WRITEL(VSYNC_H_POSITION(1), &disp_ctrl->disp.disp_timing_opt); - /* Enable DC */ + /* Enable DC now - otherwise pure text console may not show. */ + WRITEL(DISP_CTRL_MODE_C_DISPLAY, &disp_ctrl->cmd.disp_cmd); WRITEL(reg_val, &disp_ctrl->cmd.state_access); } |