On 4/18/2023 3:13 PM, Konrad Dybcio wrote:
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
Yes, that's what the expectation is with bootloader using SDAM as well.
Signed-off-by: Parikshit Pareek <quic_ppareek@xxxxxxxxxxx>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@xxxxxxxxxx>
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Best regards,
Krzysztof
-Shazad
-Shazad
