diff options
| author | Roger Lu <roger.lu@mediatek.com> | 2020-07-13 15:13:26 +0800 |
|---|---|---|
| committer | Yidi Lin <yidi.lin@mediatek.com> | 2020-12-15 10:52:12 +0800 |
| commit | c972ecc5083835d197f6e0abf49ac649f942b187 (patch) | |
| tree | 0a93a57f2c7a7f315f2b431d5cfc635f28899549 | |
| parent | 052bfa6dcbf052de0a219f8d1fb435216cbb9f96 (diff) | |
| download | blobs-c972ecc5083835d197f6e0abf49ac649f942b187.tar.gz | |
soc/mediatek/mt8192: add SPM firmware
Support SPM suspend at the end of system suspend.
BUG=b:159079649,b:173653085
TEST=Asurada boots up to shell
Signed-off-by: Roger Lu <roger.lu@mediatek.com>
Change-Id: I7dfa4a8a7ac585dcc8eb158d2db5a2a89436389d
| -rw-r--r-- | soc/mediatek/mt8192/README.md | 22 | ||||
| -rw-r--r-- | soc/mediatek/mt8192/spm_firmware.bin | bin | 0 -> 10112 bytes | |||
| -rw-r--r-- | soc/mediatek/mt8192/spm_firmware.bin.md5 | 1 | ||||
| -rw-r--r-- | soc/mediatek/mt8192/spm_release_notes.txt | 4 |
4 files changed, 27 insertions, 0 deletions
diff --git a/soc/mediatek/mt8192/README.md b/soc/mediatek/mt8192/README.md index b53814d..ff4b066 100644 --- a/soc/mediatek/mt8192/README.md +++ b/soc/mediatek/mt8192/README.md @@ -2,6 +2,7 @@ - drame.elf - dpm.dm - dpm.pm +- spm_firmware.bin -------------------------------------------------------------------------------- # `dram.elf` Introduction @@ -98,3 +99,24 @@ They are loaded into DPM SRAM when system inits. ## Version - No version yet. + +-------------------------------------------------------------------------------- +# SPM Introduction + +SPM is able to turn off more power such as DRAM self-refresh mode and 26M clock off +when system is in suspend. Also, SPM helps support Vcore DVFS feature. + +## Who uses it + - Linux kernel system suspend and Vcore DVFS. + +## How to load `spm_fimware.bin` + - Use CBFS to load "spm_fimware.bin" to DRAM and SPM DMA loads it from dram to SPM SRAM. + +## Return Values + SPM driver in coreboot checks if pmem_words/dmem_words are 16-byte aligned in `spm_fimware.bin` + - yes : SPM DMA can load `spm_fimware.bin` to SPM SRAM correctly. + - no : assert(0) + +## Version + Search "spmfw (version" will show log like below + - spmfw (version pcm_suspend_v1.43_no_GPU_WAYEN) diff --git a/soc/mediatek/mt8192/spm_firmware.bin b/soc/mediatek/mt8192/spm_firmware.bin Binary files differnew file mode 100644 index 0000000..8943f0c --- /dev/null +++ b/soc/mediatek/mt8192/spm_firmware.bin diff --git a/soc/mediatek/mt8192/spm_firmware.bin.md5 b/soc/mediatek/mt8192/spm_firmware.bin.md5 new file mode 100644 index 0000000..5b10145 --- /dev/null +++ b/soc/mediatek/mt8192/spm_firmware.bin.md5 @@ -0,0 +1 @@ +474883cf1437b8ead0dd4363a8d234f4 *spm_firmware.bin diff --git a/soc/mediatek/mt8192/spm_release_notes.txt b/soc/mediatek/mt8192/spm_release_notes.txt new file mode 100644 index 0000000..273c83c --- /dev/null +++ b/soc/mediatek/mt8192/spm_release_notes.txt @@ -0,0 +1,4 @@ +** Build from MediaTek Internal ** + +# 2020.07 +1. Support SPM suspend at the end of system suspend. |