Re: [PATCH 1/4] arm64: dts: ti: k3-am62-wakeup: Add wakeup r5f node
From: Andrew Davis <hidden>
Date: 2025-01-28 16:22:13
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On 1/27/25 4:16 PM, Judith Mendez wrote:
quoted hunk ↗ jump to hunk
From: Hari Nagalla <redacted> AM62 SoC devices have a single core R5F processor in wakeup domain. The R5F processor in wakeup domain is used as a device manager for the SoC. Co-authored-by: Devarsh Thakkar [off-list ref] Signed-off-by: Hari Nagalla <redacted> [Judith: Fix commit message header] Signed-off-by: Judith Mendez <redacted> --- arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+)diff --git a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi index 9b8a1f85aa15c..79708c1c214f8 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi@@ -106,6 +106,30 @@ wkup_rti0: watchdog@2b000000 { status = "reserved"; }; + wkup_r5fss0: r5fss@78000000 { + compatible = "ti,am62-r5fss"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x78000000 0x00 0x78000000 0x8000>, + <0x78100000 0x00 0x78100000 0x8000>; + power-domains = <&k3_pds 119 TI_SCI_PD_EXCLUSIVE>; + + wkup_r5fss0_core0: r5f@78000000 { + compatible = "ti,am62-r5f"; + reg = <0x78000000 0x00008000>, + <0x78100000 0x00008000>; + reg-names = "atcm", "btcm"; + ti,sci = <&dmsc>; + ti,sci-dev-id = <121>; + ti,sci-proc-ids = <0x01 0xff>; + resets = <&k3_reset 121 1>; + firmware-name = "ti-sysfw/ti-fs-stub-firmware-am62x-gp-signed.bin";
What is this firmware name? This doesn't exist in linux-firmware, should use the normal name like "am62-wkup-r5f0_0-fw", then we can use symlinks in our userspace to map to whatever firmware we want to run. Andrew
+ ti,atcm-enable = <1>;
+ ti,btcm-enable = <1>;
+ ti,loczrama = <1>;
+ };
+ };
+
wkup_vtm0: temperature-sensor@b00000 {
compatible = "ti,j7200-vtm";
reg = <0x00 0xb00000 0x00 0x400>,