Re: [PATCH v8 9/9] arm64: dts: ti: Add wkup R5F nodes to pre-ram bootphase

On Wed, Sep 16, 2026 at 12:17:42PM +0200, Markus Schneider-Pargmann wrote:

Hi Francesco,

On Fri Sep 11, 2026 at 7:24 AM CEST, Francesco Dolcini wrote:

quoted

Hello Markus

On Thu, Sep 03, 2026 at 02:39:30PM +0200, Markus Schneider-Pargmann (TI) wrote:

quoted

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.

Add the bootph-pre-ram flag to the wkup_r5fss0_core0 node in both
ipc-firmware dtsi files and to the lpm metadata region nodes of the
AM62A and AM62P boards.

The board level bootph-pre-ram flag of k3-am62d2-evm.dts becomes
redundant with the dtsi-wide flag and is dropped.

Signed-off-by: Markus Schneider-Pargmann (TI) <msp@baylibre.com>

...

quoted

diff --git a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
index 45ab9d947b3a..8976c0424cd1 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi

@@ -184,6 +184,7 @@ wkup_r5fss0_core0_lpm_metadata_region: memory@9ca08000 {
 			compatible = "shared-dma-pool";
 			reg = <0x00 0x9ca08000 0x00 0x1000>;
 			no-map;
+			bootph-pre-ram;
 		};

verdin-am62p has the various bootph tags only in the U-Boot dtsi
(k3-am62p5-verdin-wifi-dev-u-boot.dtsi) as of now, I am not convinced it
is a good idea to just add this single one here.

I don't see any bootph-* flags for any of the related memory regions in
k3-am62p5-verdin-wifi-dev-u-boot.dtsi. Is it in a different dtsi?

What I meant is that any bootph- property is in
arch/arm/dts/k3-am6p25-verdin-wifi-dev-u-boot.dtsi 

And I would not start adding spreading this in 2 different places.

Francesco