[PATCH v3 7/7] arm64: dts: ti: k3-am62p5-sk: Add r5f nodes to pre-ram bootphase

Markus Schneider-Pargmann (TI)
2026-03-18T15:14:23Z

For IO+DDR the wkup_r5fss0_core0 and the
wkup_r5fss0_core0_lpm_metadata_region need to be accessed before RAM
setup is done. These are used to read the lpm metadata region in which
data is stored to resume. This needs to be done before RAM is in use to
avoid overwriting data.

Signed-off-by: Markus Schneider-Pargmann (TI) <msp@baylibre.com>
---
arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
index 7fa4924ab52484c7ac4243a0cd6c0d7aacaf8b30..55e75e9946f75d4d787c933d1d87de6ea9670a13 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -71,6 +71,7 @@ wkup_r5fss0_core0_lpm_metadata_region: memory@9ca08000 {
compatible = "shared-dma-pool";
reg = <0x00 0x9ca08000 0x00 0x1000>;
no-map;
+ bootph-pre-ram;
};

wkup_r5fss0_core0_lpm_rest_region: memory@9ca09000 {
@@ -868,4 +869,5 @@ &wkup_r5fss0_core0 {
memory-region-names = "dma", "ipc", "lpm-stub",
"lpm-metadata", "lpm-context",
"dm-firmware";
+ bootph-pre-ram;
};

--
2.53.0