coresight: ETM: Add support for ARM Cortex-A73

Add ARM Cortex A-73 ETM PIDs to the known ETM ips. While at it also add description of the CPU to which the ETM belongs, to make it easier to identify the ETM devices. Cc: Mathieu Poirier <[email protected]> Signed-off-by: Suzuki K Poulose <[email protected]>
96boards · Nov 3, 2017 · a22bfb3 · a22bfb3
1 parent 0b07194
commit a22bfb3
Showing 1 changed file with 14 additions and 8 deletions.
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c b/drivers/hwtracing/coresight/coresight-etm4x.c
@@ -1034,7 +1034,8 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
 	}
 
 	pm_runtime_put(&adev->dev);
-	dev_info(dev, "%s initialized\n", (char *)id->data);
+	dev_info(dev, "CPU%d: %s initialized\n",
+			drvdata->cpu, (char *)id->data);
 
 	if (boot_enable) {
 		coresight_enable(drvdata->csdev);
@@ -1052,21 +1053,26 @@ static int etm4_probe(struct amba_device *adev, const struct amba_id *id)
 	return ret;
 }
 
-static const struct amba_id etm4_ids[] = {
-	{       /* ETM 4.0 - Cortex-A53  */
+static struct amba_id etm4_ids[] = {
+	{
 		.id	= 0x000bb95d,
 		.mask	= 0x000fffff,
-		.data	= "ETM 4.0",
+		.data	= "Cortex-A53 ETM v4.0",
 	},
-	{       /* ETM 4.0 - Cortex-A57 */
+	{
 		.id	= 0x000bb95e,
 		.mask	= 0x000fffff,
-		.data	= "ETM 4.0",
+		.data	= "Cortex-A57 ETM v4.0",
 	},
-	{       /* ETM 4.0 - A72, Maia, HiSilicon */
+	{
 		.id = 0x000bb95a,
 		.mask = 0x000fffff,
-		.data = "ETM 4.0",
+		.data = "Cortex-A72 ETM v4.0",
+	},
+	{
+		.id = 0x000bb959,
+		.mask = 0x000fffff,
+		.data = "Cortex-A73 ETM v4.0",
 	},
 	{ 0, 0},
 };