diff options
| author | Matt DeVillier <matt.devillier@gmail.com> | 2016-11-16 23:37:43 -0600 |
|---|---|---|
| committer | Nico Huber <nico.h@gmx.de> | 2016-12-07 23:54:14 +0100 |
| commit | f8960a6149578172d37c3223e5309da2d14f3da6 (patch) | |
| tree | 116b81c6187090a269f5dd977164da8d3d3a0613 /src/soc/intel/broadwell/include | |
| parent | 0b7c72c70c70c7d0dd73a86606ecd4661b184165 (diff) | |
| download | coreboot-f8960a6149578172d37c3223e5309da2d14f3da6.tar.xz | |
soc/broadwell: set EM4/EM5 registers based on cdclk
The EM4/EM5 registers in the mini-HD audio device must be set based
on the GPU cdclk value in order for HDMI audio to function properly.
Add variables to save the correct values when initializing the GPU,
and accessor functions to retrieve them in order to set the registers
when initializing the mini-HD audio device.
Change-Id: Icce7d5981f0b2ccb09d3861b28b843a260c8aeba
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/17718
Tested-by: build bot (Jenkins)
Reviewed-by: Nico Huber <nico.h@gmx.de>
Diffstat (limited to 'src/soc/intel/broadwell/include')
| -rw-r--r-- | src/soc/intel/broadwell/include/soc/igd.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/soc/intel/broadwell/include/soc/igd.h b/src/soc/intel/broadwell/include/soc/igd.h new file mode 100644 index 0000000000..e7d3777045 --- /dev/null +++ b/src/soc/intel/broadwell/include/soc/igd.h @@ -0,0 +1,20 @@ +/* + * This file is part of the coreboot project. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef SOC_INTEL_BROADWELL_GMA_H +#define SOC_INTEL_BROADWELL_GMA_H + +u32 igd_get_reg_em4(void); +u32 igd_get_reg_em5(void); + +#endif /* SOC_INTEL_BROADWELL_GMA_H */
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