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    SubjectRe: [PATCH 1/2] coresight: etm4x: Add support for Qualcomm SC7180 SoC
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    On 03/20/2020 07:44 AM, Sai Prakash Ranjan wrote:
    > Add ETM Peripheral IDs for Qualcomm SC7180 SoC. It has
    > 2 big CPU cores based on Cortex-A76 and 6 LITTLE CPU
    > cores based on Cortex-A55.
    >
    > Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
    > ---
    > drivers/hwtracing/coresight/coresight-etm4x.c | 2 ++
    > 1 file changed, 2 insertions(+)
    >
    > diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
    > index a90d757f7043..a153a65c4c5b 100644
    > --- a/drivers/hwtracing/coresight/coresight-etm4x.c
    > +++ b/drivers/hwtracing/coresight/coresight-etm4x.c
    > @@ -1556,6 +1556,8 @@ static const struct amba_id etm4_ids[] = {
    > CS_AMBA_UCI_ID(0x000f0211, uci_id_etm4),/* Qualcomm Kryo */
    > CS_AMBA_ID(0x000bb802), /* Qualcomm Kryo 385 Cortex-A55 */
    > CS_AMBA_ID(0x000bb803), /* Qualcomm Kryo 385 Cortex-A75 */
    > + CS_AMBA_ID(0x000bb805), /* Qualcomm Kryo 4XX Cortex-A55 */
    > + CS_AMBA_ID(0x000bb804), /* Qualcomm Kryo 4XX Cortex-A76 */

    Does the DEVARCH indicate that it is an ETMv4 ? (It should !) Please
    could we enforce the UCI_ID check for these components ? The
    moment you add CTI components to your board this could conflict with
    them unless we check the UCI_ID for ETMv4.

    Suzuki

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