Add PSCI SYSTEM_RESET2 reboot-modes for talos based boards, for use by
the psci_reboot_mode driver.

The following modes are defined:
- bootloader: reboot into fastboot mode for fastboot flashing.
- edl: reboot into emergency download mode for image loading via
  the Firehose protocol.

Support for these modes is firmware dependent.

Signed-off-by: Song Xue <quic_songxue@quicinc.com>
Signed-off-by: Shivendra Pratap <shivendra.pratap@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/talos.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/talos.dtsi b/arch/arm64/boot/dts/qcom/talos.dtsi
index 75716b4a58d6d331337f8a4f3f41f62a45416ec9..4e12d19e282f81b7e18ecb2868b8fd9fe3975651 100644
--- a/arch/arm64/boot/dts/qcom/talos.dtsi
+++ b/arch/arm64/boot/dts/qcom/talos.dtsi
@@ -617,6 +617,11 @@ cluster_pd: power-domain-cluster {
 					      &cluster_sleep_1
 					      &cluster_sleep_2>;
 		};
+
+		reboot-mode {
+			mode-bootloader = <0x80010001 0x2>;
+			mode-edl = <0x80000000 0x1>;
+		};
 	};
 
 	reserved-memory {

-- 
2.34.1