[PATCH v3 4/4] arm64: dts: imx8ulp-evk: Update rpmsg resource table address

[Peng Fan (OSS)]

From: Biwen Li <biwen.li at nxp.com>

The MCU firmware copies the rsc table to a fixed address (0x1FFF8000) at
startup. However, this address is occupied by variables used in the MCU
firmware, so copying the rsc table there corrupts those variables.

Move the rsc-table reserved memory region from 0x1FFF8000 to 0x20000000
to avoid the conflict. The M33 firmware linker script has been updated
accordingly to place the rpmsg resource table at 0x20000000 (DTCM
m_rsc_tbl region).

Signed-off-by: Biwen Li <biwen.li at nxp.com>
Signed-off-by: Peng Fan <peng.fan at nxp.com>
---
 arch/arm64/boot/dts/freescale/imx8ulp-evk.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
index 5dea66c1e7aa0..0f9d55e811391 100644
--- a/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx8ulp-evk.dts
@@ -42,8 +42,8 @@ m33_reserved: noncacheable-section at a8600000 {
 			no-map;
 		};
 
-		rsc_table: rsc-table at 1fff8000 {
-			reg = <0 0x1fff8000 0 0x1000>;
+		rsc_table: rsc-table at 20000000 {
+			reg = <0 0x20000000 0 0x1000>;
 			no-map;
 		};
 

-- 
2.34.1