On Thu, 24 Jan 2019 at 11:21, Sai Prakash Ranjan <saiprakash.ranjan@xxxxxxxxxxxxxx> wrote: > > Hi Suzuki, > > On 1/24/2019 4:49 PM, Suzuki K Poulose wrote: > > Hi Sai, > > > > > > That looks fine with me. But as Mathieu said, this needs to be a separate > > patch. But before all that please could you provide me the PIDR4 value for > > the Kryo A75 and A55 please ? > > > > Sure. > > PIDR4 value is 0x4. > > I get it now. So we are looking for JEP106 identification(PIDR1[7:4] and > PIDR2[2:0]) and continuation code(PIDR4[3:0]). > > From ARM Coresight Spec: > > DES_0, PIDR1 bits[7:4] JEP106 identification code bits[3:0]. > DES_1, PIDR2 bits[2:0] JEP106 identification code bits[6:4]. > DES_2, PIDR4 bits[3:0] JEP106 continuation code. > > 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, > Sai > > -- > QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member > of Code Aurora Forum, hosted by The Linux Foundation
