arm64: dts: ti: k3-am65-mcu: Add the MCU RAM node

Add the on-chip SRAM present within the MCU domain as a mmio-sram node.
The K3 AM65x SoCs have 512 KB of such memory. Any specific memory range
within this RAM needed by a software module ought to be reserved using
an appropriate child node.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>

diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
index 6f7d2b316dedd2eecc278e63b47e0e4572db8bff..afc29eaa263839e72e27e357a00c1d930c0d984e 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
@@ -17,6 +17,14 @@
                        power-domains = <&k3_pds 149>;
        };
 
+       mcu_ram: sram@41c00000 {
+               compatible = "mmio-sram";
+               reg = <0x00 0x41c00000 0x00 0x80000>;
+               ranges = <0x0 0x00 0x41c00000 0x80000>;
+               #address-cells = <1>;
+               #size-cells = <1>;
+       };
+
        mcu_i2c0: i2c@40b00000 {
                compatible = "ti,am654-i2c", "ti,omap4-i2c";
                reg = <0x0 0x40b00000 0x0 0x100>;