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@xxxxxx> --- arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi | 35 ++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi index 8c36e56f4138..803da3cce336 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a-mcu.dtsi @@ -6,6 +6,17 @@ */ &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>; @@ -167,4 +178,28 @@ 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>; + 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>; + }; + }; }; -- 2.34.1