Messages in this thread | | | Date | Tue, 19 Jan 2021 17:20:28 +0000 | From | Sudeep Holla <> | Subject | Re: [PATCH v1 5/9] firmware: keembay: Add support for Trusted Firmware Service call |
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On Tue, Jan 19, 2021 at 02:38:32AM +0000, Zulkifli, Muhammad Husaini wrote:
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> > I try to hook up the DT last night. Seems like the SCMI Protocol 17 is not > implemented at ATF side.
I had guessed that.
> Double check with ATF Team, currently we don't have SCMI voltage domain > control in ARM Trusted Firmware yet as of now, that is why even if I map the > function to scmi, my call will be fail.
Correct, but if you already have this custom SMCCC for voltage already implemented in TF-A, I don't see it is a big deal to support voltage protocol there.
> > [ 2.648989] arm-scmi firmware:scmi: SCMI Notifications - Core Enabled. > [ 2.656157] arm-scmi firmware:scmi: SCMI Protocol v1.0 'INTEL:KMB' Firmware version 0x1 > [ 2.664513] arm-scmi firmware:scmi: SCMI protocol 23 not implemented > [ 2.675898] arm-scmi firmware:scmi: SCMI protocol 17 not implemented > > Any possibilities that for UHS patch we go with my current regulator driver > implementation?
Sorry absolutely no. If this platform was not using SCMI, I wouldn't have pushed back hard on this custom SMCCC. Please update TF-A to add this support. There is no point in having custom interface just for this when everything else is already using SCMI on this platform.
-- Regards, Sudeep
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