[PATCH v4 3/4] arm64: dts: ti: k3-am62a7-sk: Add r5f nodes to pre-ram bootphase
From: Markus Schneider-Pargmann (TI)
Date: Wed Apr 29 2026 - 09:29:44 EST
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@xxxxxxxxxxxx>
---
arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
index 6f2ee93c7be141ee5ae3f1e3324d3a060db069f6..5155f093437f35d815b2bf62429b57c9d8672290 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts
@@ -75,6 +75,7 @@ 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 {
@@ -968,4 +969,5 @@ &wkup_r5fss0_core0 {
memory-region-names = "dma", "ipc", "lpm-stub",
"lpm-metadata", "lpm-context",
"dm-firmware";
+ bootph-pre-ram;
};
--
2.53.0