@@ -440,6 +440,22 @@ static struct amba_id tmc_ids[] = {
.id = 0x000bb961,
.mask = 0x000fffff,
},
+ {
+ /* Coresight SoC 600 TMC-ETR/ETS */
+ .id = 0x000bb9e8,
+ .mask = 0x000fffff,
+ .data = (void *)(unsigned long)CORESIGHT_SOC_600_ETR_CAPS,
+ },
+ {
+ /* Coresight SoC 600 TMC-ETB */
+ .id = 0x000bb9e9,
+ .mask = 0x000fffff,
+ },
+ {
+ /* Coresight SoC 600 TMC-ETF */
+ .id = 0x000bb9ea,
+ .mask = 0x000fffff,
+ },
{ 0, 0},
};
@@ -131,6 +131,10 @@ enum tmc_mem_intf_width {
*/
#define TMC_ETR_SAVE_RESTORE (0x1U << 2)
+/* Coresight SoC-600 TMC-ETR unadvertised capabilities */
+#define CORESIGHT_SOC_600_ETR_CAPS \
+ (TMC_ETR_SAVE_RESTORE | TMC_ETR_AXI_ARCACHE)
+
/**
* struct tmc_drvdata - specifics associated to an TMC component
* @base: memory mapped base address for this component.
The coresight SoC 600 supports ETR save-restore which allows us to restore a trace session by retaining the RRP/RWP/STS.Full values when the TMC leaves the Disabled state. However, the TMC doesn't have a scatter-gather unit in built. Also, TMCs have different PIDs in different configurations (ETF, ETB & ETR), unlike the previous generation. While the DEVID exposes some of the features/changes in the TMC, it doesn't explicitly advertises the new save-restore feature as described above. Cc: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> --- drivers/hwtracing/coresight/coresight-tmc.c | 16 ++++++++++++++++ drivers/hwtracing/coresight/coresight-tmc.h | 4 ++++ 2 files changed, 20 insertions(+)