erebion/coreboot
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

tegra124: Always enable DC when attaching SOR.

Browse source 
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.

Change-Id: I6fce963ceddd125dd52789d2ec843cc2ee05f1f5
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/195388
This commit is contained in:
Hung-Te Lin 2014-04-18 00:32:41 +08:00 • committed by chrome-internal-fetch
commit 375a86be9b
1 changed files with 2 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

3
src/soc/nvidia/tegra124/sor.c
View file

@ -660,7 +660,8 @@ 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);
}