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Diffstat (limited to 'soc/mediatek/mt8186/README.md')
-rw-r--r-- | soc/mediatek/mt8186/README.md | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/soc/mediatek/mt8186/README.md b/soc/mediatek/mt8186/README.md index 160e49d..b535e83 100644 --- a/soc/mediatek/mt8186/README.md +++ b/soc/mediatek/mt8186/README.md @@ -19,3 +19,24 @@ No return value. `$ strings spm_firmware.bin | grep pcm_suspend` -------------------------------------------------------------------------------- +# SSPM introduction +SSPM is "Secure System Power Manager" that provides power control in secure domain. +SSPM provides power related features, e.g. CPU DVFS, thermal control, to offload +application processor for security reason. + +SSPM firmware is loaded into SSPM SRAM at system initialization. + +## Who uses it +Coreboot will load sspm.bin to SSPM SRAM at ramstage. + +## How to load `sspm.bin` +Use CBFS to load `sspm.bin`. +No need to pass other parameters to SSPM. + +## Return value +No return value. + +## Version +`$ strings sspm.bin | grep "SSPM firmware"` + +-------------------------------------------------------------------------------- |