Add support for SYSTEM_RESET2 vendor-specific resets as
reboot-modes in the psci node.  Describe the resets: "bootloader"
will cause device to reboot and stop in the bootloader's fastboot
mode.  "edl" will cause device to reboot into "emergency download
mode", which permits loading images via the Firehose protocol.

Signed-off-by: Xin Liu <xin.liu@oss.qualcomm.com>
---
Changes in v2:
- Fix mode-bootloader and mode-edl reset_type
- Link to v1 : https://lore.kernel.org/all/20260209042700.1186392-1-xin.liu@oss.qualcomm.com/

 arch/arm64/boot/dts/qcom/hamoa.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/dts/qcom/hamoa.dtsi
index db65c392e618..a1bd8c3e4061 100644
--- a/arch/arm64/boot/dts/qcom/hamoa.dtsi
+++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi
@@ -450,6 +450,11 @@ system_pd: power-domain-system {
 			#power-domain-cells = <0>;
 			/* TODO: system-wide idle states */
 		};
+
+		reboot-mode {
+			mode-bootloader = <0x80010001 0x2>;
+			mode-edl = <0x80000000 0x1>;
+		};
 	};
 
 	reserved-memory {
-- 
2.43.0

On Wed, Feb 25, 2026 at 09:41:13PM -0800, Xin Liu wrote:
> Add support for SYSTEM_RESET2 vendor-specific resets as
> reboot-modes in the psci node.  Describe the resets: "bootloader"
> will cause device to reboot and stop in the bootloader's fastboot
> mode.  "edl" will cause device to reboot into "emergency download
> mode", which permits loading images via the Firehose protocol.
> 
> Signed-off-by: Xin Liu <xin.liu@oss.qualcomm.com>

How did you test this? I tried to apply this, but I'm getting 52 counts
of:

xyz.dtb: psci (arm,psci-1.0) 'reboot-mode' does not match any of the regexes: '^pinctrl-[0-9]+$', '^power-domain-'

Am I doing something wrong?

Regards,
Bjorn

> ---
> Changes in v2:
> - Fix mode-bootloader and mode-edl reset_type
> - Link to v1 : https://lore.kernel.org/all/20260209042700.1186392-1-xin.liu@oss.qualcomm.com/
> 
>  arch/arm64/boot/dts/qcom/hamoa.dtsi | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/hamoa.dtsi b/arch/arm64/boot/dts/qcom/hamoa.dtsi
> index db65c392e618..a1bd8c3e4061 100644
> --- a/arch/arm64/boot/dts/qcom/hamoa.dtsi
> +++ b/arch/arm64/boot/dts/qcom/hamoa.dtsi
> @@ -450,6 +450,11 @@ system_pd: power-domain-system {
>  			#power-domain-cells = <0>;
>  			/* TODO: system-wide idle states */
>  		};
> +
> +		reboot-mode {
> +			mode-bootloader = <0x80010001 0x2>;
> +			mode-edl = <0x80000000 0x1>;
> +		};
>  	};
>  
>  	reserved-memory {
> -- 
> 2.43.0
>