[PATCH 2/4] arm64: dts: ti: k3-am62a-mcu: Add R5F remote proc node
Andrew Davis
afd at ti.com
Tue Jan 28 08:27:42 PST 2025
On 1/27/25 4:16 PM, Judith Mendez wrote:
> From: Hari Nagalla <hnagalla at ti.com>
>
> 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 <hnagalla at ti.com>
> [Judith: Fix commit message header]
> Signed-off-by: Judith Mendez <jm at ti.com>
> ---
> 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 at 79100000 {
> + compatible = "mmio-sram";
> + reg = <0x00 0x79100000 0x00 0x80000>;
> + ranges = <0x00 0x00 0x79100000 0x80000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + mcu1-sram at 0 {
> + reg = <0x0 0x80000>;
> + };
> + };
> +
> mcu_pmx0: pinctrl at 4084000 {
> compatible = "pinctrl-single";
> reg = <0x00 0x04084000 0x00 0x88>;
> @@ -175,4 +187,28 @@ mcu_mcan1: can at 4e18000 {
> bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>;
> status = "disabled";
> };
> +
> + mcu_r5fss0: r5fss at 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 at 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>;
> + };
> + };
> };
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