[PATCH 07/10] arm64: dts: st: Add OMM node on stm32mp231

From: Marek Vasut

Date: Sat Jul 11 2026 - 17:05:33 EST


Add Octo Memory Manager (OMM) entry on stm32mp231 and its two
OSPI instance.

Signed-off-by: Marek Vasut <marex@xxxxxxxxxxxx>
---
Cc: Alexandre Torgue <alexandre.torgue@xxxxxxxxxxx>
Cc: Bartosz Golaszewski <brgl@xxxxxxxxxx>
Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
Cc: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
Cc: Linus Walleij <linusw@xxxxxxxxxx>
Cc: Rob Herring <robh@xxxxxxxxxx>
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: kernel@xxxxxxxxxxxxxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-gpio@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Cc: linux-stm32@xxxxxxxxxxxxxxxxxxxxxxxxxxxx
---
arch/arm64/boot/dts/st/stm32mp231.dtsi | 54 ++++++++++++++++++++++++++
1 file changed, 54 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp231.dtsi b/arch/arm64/boot/dts/st/stm32mp231.dtsi
index d70812f094142..4505fc0e3b537 100644
--- a/arch/arm64/boot/dts/st/stm32mp231.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp231.dtsi
@@ -222,6 +222,60 @@ hpdma3: dma-controller@40420000 {
#dma-cells = <3>;
};

+ ommanager: ommanager@40500000 {
+ compatible = "st,stm32mp25-omm";
+ reg = <0x40500000 0x400>, <0x60000000 0x10000000>;
+ reg-names = "regs", "memory_map";
+ ranges = <0 0 0x40430000 0x400>,
+ <1 0 0x40440000 0x400>;
+ clocks = <&rcc CK_BUS_OSPIIOM>,
+ <&scmi_clk CK_SCMI_OSPI1>,
+ <&scmi_clk CK_SCMI_OSPI2>;
+ clock-names = "omm", "ospi1", "ospi2";
+ resets = <&rcc OSPIIOM_R>,
+ <&scmi_reset RST_SCMI_OSPI1>,
+ <&scmi_reset RST_SCMI_OSPI2>;
+ reset-names = "omm", "ospi1", "ospi2";
+ access-controllers = <&rifsc 111>;
+ power-domains = <&cluster_pd>;
+ #address-cells = <2>;
+ #size-cells = <1>;
+ st,syscfg-amcr = <&syscfg 0x2c00 0x7>;
+ status = "disabled";
+
+ ospi1: spi@0 {
+ compatible = "st,stm32mp25-ospi";
+ reg = <0 0 0x400>;
+ interrupts = <GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&hpdma 2 0x62 0x3121>,
+ <&hpdma 2 0x42 0x3112>;
+ dma-names = "tx", "rx";
+ clocks = <&scmi_clk CK_SCMI_OSPI1>;
+ resets = <&scmi_reset RST_SCMI_OSPI1>,
+ <&scmi_reset RST_SCMI_OSPI1DLL>;
+ access-controllers = <&rifsc 74>;
+ power-domains = <&cluster_pd>;
+ st,syscfg-dlyb = <&syscfg 0x1000>;
+ status = "disabled";
+ };
+
+ ospi2: spi@1 {
+ compatible = "st,stm32mp25-ospi";
+ reg = <1 0 0x400>;
+ interrupts = <GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&hpdma 3 0x62 0x3121>,
+ <&hpdma 3 0x42 0x3112>;
+ dma-names = "tx", "rx";
+ clocks = <&scmi_clk CK_SCMI_OSPI2>;
+ resets = <&scmi_reset RST_SCMI_OSPI2>,
+ <&scmi_reset RST_SCMI_OSPI2DLL>;
+ access-controllers = <&rifsc 75>;
+ power-domains = <&cluster_pd>;
+ st,syscfg-dlyb = <&syscfg 0x1400>;
+ status = "disabled";
+ };
+ };
+
rifsc: bus@42080000 {
compatible = "st,stm32mp25-rifsc", "simple-bus";
reg = <0x42080000 0x1000>;
--
2.53.0