diff options
| author | Rex-BC Chen <rex-bc.chen@mediatek.com> | 2022-08-10 18:23:01 +0800 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-08-31 16:52:13 +0000 |
| commit | c23235e7dd939efa6ef6daecdd39a87e3ee4bfcc (patch) | |
| tree | cbb40d9b6f28ed824e8ceceb2225303c3c0ab5a0 /src/soc/mediatek/mt8188/Makefile.inc | |
| parent | 9d638a95167781671dd0f982b1e6c2194c7f22eb (diff) | |
soc/mediatek/mt8188: Add SPM loader and initialize SPM in RAM stage
Add support for loading SPM firmware from CBFS to SPM SRAM. SPM needs
its own firmware to enable SPM suspend/resume function which turns off
several resources such as DRAM/mainpll/26M clk when linux system
suspend.
SPM is an essential component on MediaTek SoC, so we initialize PPM
in soc_init(). For MT8188, SPM will handshake with DPM to do
initialization, so we need to call spm_init() after dpm_init().
This SPM flow adds 33ms to the boot time.
firmware log:
mtk_init_mcu: Loaded (and reset) spm_firmware.bin in 25 msecs
SPM: spm_init done in 33 msecs, spm pc = 0x400
TEST=spm pc is 0x400 which is in idle state.
BUG=b:236331724
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Change-Id: I1a1f49383e0ceadc259a18272fc1c277b65406ae
Reviewed-on: https://review.coreboot.org/c/coreboot/+/66973
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Diffstat (limited to 'src/soc/mediatek/mt8188/Makefile.inc')
| -rw-r--r-- | src/soc/mediatek/mt8188/Makefile.inc | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8188/Makefile.inc b/src/soc/mediatek/mt8188/Makefile.inc index 98a96cdd64..70ec42ae7f 100644 --- a/src/soc/mediatek/mt8188/Makefile.inc +++ b/src/soc/mediatek/mt8188/Makefile.inc @@ -42,6 +42,7 @@ ramstage-y += ../common/mt6359p.c mt6359p.c ramstage-y += ../common/pmif.c ../common/pmif_clk.c pmif_clk.c ramstage-y += ../common/pmif_spi.c pmif_spi.c ramstage-y += soc.c +ramstage-y += ../common/spm.c spm.c ramstage-y += ../common/sspm.c ramstage-y += ../common/usb.c usb.c @@ -54,6 +55,7 @@ mcu-firmware-files := \ $(CONFIG_DPM_DM_FIRMWARE) \ $(CONFIG_DPM_PM_FIRMWARE) \ $(CONFIG_MCUPM_FIRMWARE) \ + $(CONFIG_SPM_FIRMWARE) \ $(CONFIG_SSPM_FIRMWARE) $(foreach fw, $(call strip_quotes,$(mcu-firmware-files)), \ |