[PATCH 11/12] coresight tmc: Add support for Coresight SoC 600 TMC

[Suzuki K Poulose]

The coresight SoC 600 supports ETR save-restore and also supports
a new mode, SWFIFO2, which helps to streaming the trace data through
a functional I/O (e.g, USB).

Also, TMCs have different PIDs in different configurations (ETF,
ETB & ETR), unlike the previous generation.

Cc: Mathieu Poirier <mathieu.poir...@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poul...@arm.com>
---
 drivers/hwtracing/coresight/coresight-tmc.c | 20 ++++++++++++++++++++
 drivers/hwtracing/coresight/coresight-tmc.h |  8 ++++++++
 2 files changed, 28 insertions(+)

diff --git a/drivers/hwtracing/coresight/coresight-tmc.c 
b/drivers/hwtracing/coresight/coresight-tmc.c
index e88f2f3..03cafa7 100644
--- a/drivers/hwtracing/coresight/coresight-tmc.c
+++ b/drivers/hwtracing/coresight/coresight-tmc.c
@@ -409,6 +409,10 @@ static struct tmc_caps coresight_soc_400_tmc_caps = {
        .caps = CORESIGHT_SOC_400_TMC_CAPS,
 };
 
+static struct tmc_caps coresight_soc_600_etr_caps = {
+       .caps = CORESIGHT_SOC_600_ETR_CAPS,
+};
+
 static struct amba_id tmc_ids[] = {
        {
                /* Coresight SoC 400 TMC */
@@ -416,6 +420,22 @@ static struct amba_id tmc_ids[] = {
                .mask   = 0x000fffff,
                .data   = &coresight_soc_400_tmc_caps,
        },
+       {
+               /* Coresight SoC 600 TMC-ETR/ETS */
+               .id     = 0x000bb9e8,
+               .mask   = 0x000fffff,
+               .data   = &coresight_soc_600_etr_caps,
+       },
+       {
+               /* Coresight SoC 600 TMC-ETB */
+               .id     = 0x000bb9e9,
+               .mask   = 0x000fffff,
+       },
+       {
+               /* Coresight SoC 600 TMC-ETF */
+               .id     = 0x000bb9ea,
+               .mask   = 0x000fffff,
+       },
        {},
 };
 
diff --git a/drivers/hwtracing/coresight/coresight-tmc.h 
b/drivers/hwtracing/coresight/coresight-tmc.h
index d5ef51e..8c74e1e 100644
--- a/drivers/hwtracing/coresight/coresight-tmc.h
+++ b/drivers/hwtracing/coresight/coresight-tmc.h
@@ -98,6 +98,12 @@ enum tmc_mem_intf_width {
  * value.
  */
 #define TMC_CAP_ETR_SAVE_RESTORE       (1U << 1)
+/*
+ * TMC_CAP_ETR_SWFIFO2_MODE - ETR supports a new mode, SWFIFO2, which
+ * allows streaming the trace data with optionally raising an interrupt
+ * when the buffer fill level reaches a programmed watermark.
+ */
+#define TMC_CAP_ETR_SWFIFO2_MODE       (1U << 2)
 
 /**
  * struct tmc_cap - Describes the capabilities of the TMC.
@@ -108,6 +114,8 @@ struct tmc_caps {
 };
 
 #define CORESIGHT_SOC_400_TMC_CAPS     (TMC_CAP_ETR_SG_UNIT)
+#define CORESIGHT_SOC_600_ETR_CAPS     (TMC_CAP_ETR_SAVE_RESTORE | \
+                                        TMC_CAP_ETR_SWFIFO2_MODE)
 
 /**
  * struct tmc_drvdata - specifics associated to an TMC component
-- 
2.7.4