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Subject[PATCH v2 4/8] ARM: dts: stm32: add m4 remoteproc support on STM32MP157c
Date
Declare the M4 remote processor in a sub-node of the mlahb simple bus.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
---
arch/arm/boot/dts/stm32mp157c.dtsi | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
index c664b55..2d3f8c0 100644
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -1242,4 +1242,24 @@
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@0 {
+ compatible = "st,stm32mp1-m4";
+ reg = <0x00000000 0x10000>,
+ <0x10000000 0x40000>,
+ <0x30000000 0x40000>;
+ resets = <&rcc MCU_R>;
+ st,syscfg-holdboot = <&rcc 0x10C 0x1>;
+ st,syscfg-tz = <&rcc 0x000 0x1>;
+ status = "disabled";
+ };
+ };
};
--
2.7.4
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