On 18.04.2023 06:39, Shazad Hussain wrote: > > > On 4/13/2023 9:42 PM, Krzysztof Kozlowski wrote: >> On 13/04/2023 15:17, Bartosz Golaszewski wrote: >>> From: Parikshit Pareek <quic_ppareek@xxxxxxxxxxx> >>> >>> Remove the power on reasons with reboot from the pmm8654au_0_pon. >>> Instead, the PoN reaons should be part of different sdam_0 mode, to >> >> typo: reasons >> >>> be interoduced. >> >> introduced >> >> Anyway it does not say why. Are these power reasons not correct? >> > > Hi Krzysztof, > Since sm8350 the PMIC PON peripheral was split into PON_HLOS and PON_PBS > to avoid security concerns with HLOS APPS being able to trigger a PMIC > WARM_RESET unilaterally. When the split occurred, the spare registers > ended up in PON_PBS, not PON_HLOS. Thus at that time, we moved to using > an SDAM register for Linux “reboot reason” configuration. And bootloader > also SDAM register to get these reboot region data to get into > bootloader/edl, so to have this working we need to use SDAM. > Does that imply all PMICs following the PMK8350 scheme (separate HLOS and PBS) should direct reboot mode writes to SDAM? Konrad >>> >>> Signed-off-by: Parikshit Pareek <quic_ppareek@xxxxxxxxxxx> >>> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx> >>> --- >> >> Best regards, >> Krzysztof >> > > -Shazad
