Re: [PATCHv4 1/4] arm64: dts: qcom: sdm845: Add Coresight support

From: Sai Prakash Ranjan
Date: Mon Jan 28 2019 - 14:18:10 EST

On 1/28/2019 10:45 PM, Mathieu Poirier wrote:

For SDM845(A75 based):

*0xB_B8_03* does indicate that the JEP106 identification
code is 0x3B and continuation code is 0x4 which is of ARM and not
QCOM(JEP106 ID is 0x70) which is expected.

And the other values of PIDR0[0:7] and PIDR1[3:0] are *Implementation
defined part numbers* and can be different from ARM A75/A55.

I think this clears up case for SDM845.

As for MSM8996, it is not based on any ARM derivative and hence the
JEP106 ID is of QCOM(0x70) from the value of pid = *0xF_02_11*
based on PIDR1[7:4] and PIDR2[2:0]. This clears this as well.

Please correct me if I am wrong and also let me know if I can
continue with PID addition to table.

Please proceed.

Thanks Mathieu, posted the next version now.

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