| Message ID | 20230911072509.126063-1-tianruidong@linux.alibaba.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | coresight: etm4x: Add ACPI id for THEAD YiTian SOC | expand |
On 11/09/2023 08:25, Ruidong Tian wrote: > From: Jay Chen <jkchen@linux.alibaba.com> > > Add support for detcting ETE device of THEAD YiTian SOC. > > Signed-off-by: Jay Chen <jkchen@linux.alibaba.com> > Signed-off-by: Ruidong Tian <tianruidong@linux.alibaba.com> > --- > drivers/hwtracing/coresight/coresight-etm4x-core.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c > index 77b0271ce6eb..329bb554b168 100644 > --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c > +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c > @@ -2351,6 +2351,7 @@ static const struct of_device_id etm4_sysreg_match[] = { > #ifdef CONFIG_ACPI > static const struct acpi_device_id etm4x_acpi_ids[] = { > {"ARMHC500", 0}, /* ARM CoreSight ETM4x */ > + {"BABA6000", 0 }, /* THEAD CoreSight ETE */ Why don't we use ARMHC500 for the ETE ? See : https://developer.arm.com/documentation/den0067/latest/ Suzuki > {} > }; > MODULE_DEVICE_TABLE(acpi, etm4x_acpi_ids);
On Mon, Sep 11, 2023 at 03:25:09PM +0800, Ruidong Tian wrote: > From: Jay Chen <jkchen@linux.alibaba.com> > > Add support for detcting ETE device of THEAD YiTian SOC. > Are you trying to identify "THEAD YiTian" SoC here ? Or the standard ARM Coresight ETMv4 ? Or does this THEAD YiTian SoC has a modified version of ETMv4 which needs special handling in the driver ?
diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c index 77b0271ce6eb..329bb554b168 100644 --- a/drivers/hwtracing/coresight/coresight-etm4x-core.c +++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c @@ -2351,6 +2351,7 @@ static const struct of_device_id etm4_sysreg_match[] = { #ifdef CONFIG_ACPI static const struct acpi_device_id etm4x_acpi_ids[] = { {"ARMHC500", 0}, /* ARM CoreSight ETM4x */ + {"BABA6000", 0 }, /* THEAD CoreSight ETE */ {} }; MODULE_DEVICE_TABLE(acpi, etm4x_acpi_ids);