Add support for etms without memory mapped access.
Cc: Mathieu Poirier <mathieu.poir...@linaro.org>
Cc: Mike Leach <mike.le...@linaro.org>
Signed-off-by: Suzuki K Poulose <suzuki.poul...@arm.com>
---
drivers/hwtracing/coresight/coresight-etm4x.c | 21 +++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.c
b/drivers/hwtracing/coresight/coresight-etm4x.c
index e91af23ac419..88ec89629507 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x.c
@@ -27,6 +27,7 @@
#include <linux/seq_file.h>
#include <linux/uaccess.h>
#include <linux/perf_event.h>
+#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/property.h>
#include <asm/sections.h>
@@ -1687,6 +1688,11 @@ static int etm4_probe_amba(struct amba_device *adev,
const struct amba_id *id)
return ret;
}
+static int etm4_4_probe(struct platform_device *pdev)
+{
+ return etm4_probe_common(&pdev->dev, NULL);
+}
+
static struct amba_cs_uci_id uci_id_etm4[] = {
{
/* ETMv4 UCI data */
@@ -1722,3 +1728,18 @@ static struct amba_driver etm4x_driver = {
.id_table = etm4_ids,
};
builtin_amba_driver(etm4x_driver);
+
+static const struct of_device_id etm4_4_match[] = {
+ { .compatible = "arm,coresight-etm-v4.4" },
+ {}
+};
+
+static struct platform_driver etm4_4_driver = {
+ .probe = etm4_4_probe,
+ .driver = {
+ .name = "coresight-etm4x",
+ .of_match_table = etm4_4_match,
+ .suppress_bind_attrs = true,
+ },
+};
+builtin_platform_driver(etm4_4_driver);
--
2.24.1
