diff options
| author | Huayang Duan <huayang.duan@mediatek.com> | 2020-08-05 20:58:10 +0800 |
|---|---|---|
| committer | Yidi Lin <yidi.lin@mediatek.com> | 2020-12-04 12:07:19 +0800 |
| commit | 486b2a44293aeea4b26e3a8e89b4fe5de30300f6 (patch) | |
| tree | 403de6ab2d93c4f9f8a917bab06363149e9ed6f3 | |
| parent | faceb5cfc871c1418f0fae851583fcda357b8f9c (diff) | |
| download | blobs-486b2a44293aeea4b26e3a8e89b4fe5de30300f6.tar.gz | |
soc/mediatek/mt8192: Add dpm binary
dpm release 2020-08
- Support DRAM suspend and DDR DVFS switch
BUG=b:173653085
BRANCH=None
TEST=Boots correctly on Asurada
Signed-off-by: Huayang Duan <huayang.duan@mediatek.com>
Change-Id: I7bb33d46a8a1447ed53af50de66e43f2b9313931
| -rw-r--r-- | soc/mediatek/mt8192/README.md | 26 | ||||
| -rw-r--r-- | soc/mediatek/mt8192/dpm.dm | bin | 0 -> 36 bytes | |||
| -rw-r--r-- | soc/mediatek/mt8192/dpm.md5 | 2 | ||||
| -rw-r--r-- | soc/mediatek/mt8192/dpm.pm | bin | 0 -> 13848 bytes | |||
| -rw-r--r-- | soc/mediatek/mt8192/dpm_release_notes.txt | 4 |
5 files changed, 32 insertions, 0 deletions
diff --git a/soc/mediatek/mt8192/README.md b/soc/mediatek/mt8192/README.md index 8357521..b53814d 100644 --- a/soc/mediatek/mt8192/README.md +++ b/soc/mediatek/mt8192/README.md @@ -1,5 +1,7 @@ # Firmware list - drame.elf +- dpm.dm +- dpm.pm -------------------------------------------------------------------------------- # `dram.elf` Introduction @@ -72,3 +74,27 @@ for faster bootup after the frist bootup. ## Return Values - 0 : means successful. - < 0 : means failed. + +-------------------------------------------------------------------------------- +# DPM Introduction + +DPM is hardware module which is used for DRAM Power Management, which +is used for DRAM low power. +For example: self refresh, disable PLL/DLL when not in used. + +DPM includes two parts of images: data part (`dpm.dm`) and program part (`dpm.pm`). +They are loaded into DPM SRAM when system inits. + +## Who uses it + - coreboot will load dpm at ramstage. It will copy `dpm.dm` & `dpm.pm` to DPM SRAM. + +## How to load DPM + - Use CBFS to load `dpm.dm` and `dpm.pm`. + - No need to pass other parameters to DPM. + +## Return Values + - 0 : means successful; + - -1 : means failed; + +## Version + - No version yet. diff --git a/soc/mediatek/mt8192/dpm.dm b/soc/mediatek/mt8192/dpm.dm Binary files differnew file mode 100644 index 0000000..8ace902 --- /dev/null +++ b/soc/mediatek/mt8192/dpm.dm diff --git a/soc/mediatek/mt8192/dpm.md5 b/soc/mediatek/mt8192/dpm.md5 new file mode 100644 index 0000000..4f617c0 --- /dev/null +++ b/soc/mediatek/mt8192/dpm.md5 @@ -0,0 +1,2 @@ +a6cdb522196fc4fb359a3eec71f24575 *dpm.dm +8b561bdc783f79f500d9e310fab6ccaf *dpm.pm diff --git a/soc/mediatek/mt8192/dpm.pm b/soc/mediatek/mt8192/dpm.pm Binary files differnew file mode 100644 index 0000000..306953c --- /dev/null +++ b/soc/mediatek/mt8192/dpm.pm diff --git a/soc/mediatek/mt8192/dpm_release_notes.txt b/soc/mediatek/mt8192/dpm_release_notes.txt new file mode 100644 index 0000000..ea239fe --- /dev/null +++ b/soc/mediatek/mt8192/dpm_release_notes.txt @@ -0,0 +1,4 @@ +** Build from MediaTek Internal ** + +# 2020.08.01 +1. Add DRAM suspend/DVFS support. |