ARM: dts: stm32: add m4 remoteproc support on STM32MP157c

Declare the M4 remote processor in a sub-node of the mlahb simple bus.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>

diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
index 247334a..c0dad0f 100644 (file)
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -1470,4 +1470,24 @@
                        status = "disabled";
                };
        };
+
+       mlahb {
+               compatible = "simple-bus";
+               #address-cells = <1>;
+               #size-cells = <1>;
+               dma-ranges = <0x00000000 0x38000000 0x10000>,
+                            <0x10000000 0x10000000 0x60000>,
+                            <0x30000000 0x30000000 0x60000>;
+
+               m4_rproc: m4@10000000 {
+                       compatible = "st,stm32mp1-m4";
+                       reg = <0x10000000 0x40000>,
+                             <0x30000000 0x40000>,
+                             <0x38000000 0x10000>;
+                       resets = <&rcc MCU_R>;
+                       st,syscfg-holdboot = <&rcc 0x10C 0x1>;
+                       st,syscfg-tz = <&rcc 0x000 0x1>;
+                       status = "disabled";
+               };
+       };
 };