[PATCH 1/1] arm64: dts: imx8mp: remove arm,primecell-periphid at etm nodes

From: Frank Li
Date: Wed Jul 05 2023 - 17:00:25 EST


The reg size of etm nodes is incorrectly set to 64k instead of 4k. This
leads to a crash when calling amba_read_periphid(). After corrected reg
size, amba_read_periphid() retrieve the correct periphid.
arm,primecell-periphid were removed from the etm nodes.

Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
---
arch/arm64/boot/dts/freescale/imx8mp.dtsi | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index cc406bb338fe..e0ca82ff6f15 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -306,8 +306,7 @@ soc: soc@0 {

etm0: etm@28440000 {
compatible = "arm,coresight-etm4x", "arm,primecell";
- reg = <0x28440000 0x10000>;
- arm,primecell-periphid = <0xbb95d>;
+ reg = <0x28440000 0x1000>;
cpu = <&A53_0>;
clocks = <&clk IMX8MP_CLK_MAIN_AXI>;
clock-names = "apb_pclk";
@@ -323,8 +322,7 @@ etm0_out_port: endpoint {

etm1: etm@28540000 {
compatible = "arm,coresight-etm4x", "arm,primecell";
- reg = <0x28540000 0x10000>;
- arm,primecell-periphid = <0xbb95d>;
+ reg = <0x28540000 0x1000>;
cpu = <&A53_1>;
clocks = <&clk IMX8MP_CLK_MAIN_AXI>;
clock-names = "apb_pclk";
@@ -340,8 +338,7 @@ etm1_out_port: endpoint {

etm2: etm@28640000 {
compatible = "arm,coresight-etm4x", "arm,primecell";
- reg = <0x28640000 0x10000>;
- arm,primecell-periphid = <0xbb95d>;
+ reg = <0x28640000 0x1000>;
cpu = <&A53_2>;
clocks = <&clk IMX8MP_CLK_MAIN_AXI>;
clock-names = "apb_pclk";
@@ -357,8 +354,7 @@ etm2_out_port: endpoint {

etm3: etm@28740000 {
compatible = "arm,coresight-etm4x", "arm,primecell";
- reg = <0x28740000 0x10000>;
- arm,primecell-periphid = <0xbb95d>;
+ reg = <0x28740000 0x1000>;
cpu = <&A53_3>;
clocks = <&clk IMX8MP_CLK_MAIN_AXI>;
clock-names = "apb_pclk";
--
2.34.1