Re: [PATCH 2/4] arm64: dts: ti: k3-am62a-mcu: Add R5F remote proc node
From: Andrew Davis <hidden>
Date: 2025-01-28 16:27:48
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On 1/27/25 4:16 PM, Judith Mendez wrote:
quoted hunk ↗ jump to hunk
From: Hari Nagalla <redacted> AM62A SoCs have a single R5F core in the MCU voltage domain. The MCU domain also has a 512KB sram memory, the R5F core can use for applications needing fast memory access. Signed-off-by: Hari Nagalla <redacted> [Judith: Fix commit message header] Signed-off-by: Judith Mendez <redacted> --- arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi | 36 ++++++++++++++++++++++++ 1 file changed, 36 insertions(+)diff --git a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi index 0469c766b769e..9a20f75e48063 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi@@ -6,6 +6,18 @@ */ &cbass_mcu { + mcu_ram: sram@79100000 { + compatible = "mmio-sram"; + reg = <0x00 0x79100000 0x00 0x80000>; + ranges = <0x00 0x00 0x79100000 0x80000>; + #address-cells = <1>; + #size-cells = <1>; + + mcu1-sram@0 { + reg = <0x0 0x80000>; + }; + }; + mcu_pmx0: pinctrl@4084000 { compatible = "pinctrl-single"; reg = <0x00 0x04084000 0x00 0x88>;@@ -175,4 +187,28 @@ mcu_mcan1: can@4e18000 { bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>; status = "disabled"; }; + + mcu_r5fss0: r5fss@79000000 { + compatible = "ti,am62-r5fss"; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0x79000000 0x00 0x79000000 0x8000>, + <0x79020000 0x00 0x79020000 0x8000>; + power-domains = <&k3_pds 7 TI_SCI_PD_EXCLUSIVE>;
Newline here. Also this should be default "disabled". It can be set to "okay" in the board DTS file when the needed mboxes and memory-region are set. Speaking of that, where are those patches? This is incomplete without them and these nodes will not function. Same for the DSP patch. Andrew
+ mcu_r5fss0_core0: r5f@79000000 {
+ compatible = "ti,am62-r5f";
+ reg = <0x79000000 0x00008000>,
+ <0x79020000 0x00008000>;
+ reg-names = "atcm", "btcm";
+ ti,sci = <&dmsc>;
+ ti,sci-dev-id = <9>;
+ ti,sci-proc-ids = <0x03 0xff>;
+ resets = <&k3_reset 9 1>;
+ firmware-name = "am62a-mcu-r5f0_0-fw";
+ ti,atcm-enable = <0>;
+ ti,btcm-enable = <1>;
+ ti,loczrama = <0>;
+ sram = <&mcu_ram>;
+ };
+ };
};