[PATCH 4/4] ARM: dts: ox810se: Add DMA Support

From: Neil Armstrong
Date: Tue Jan 04 2022 - 09:52:28 EST


This adds the DMA engine node.

Signed-off-by: Neil Armstrong <narmstrong@xxxxxxxxxxxx>
---
arch/arm/boot/dts/ox810se-wd-mbwe.dts | 4 ++++
arch/arm/boot/dts/ox810se.dtsi | 21 +++++++++++++++++++++
2 files changed, 25 insertions(+)

diff --git a/arch/arm/boot/dts/ox810se-wd-mbwe.dts b/arch/arm/boot/dts/ox810se-wd-mbwe.dts
index 7e2fcb220aea..19e5d510e425 100644
--- a/arch/arm/boot/dts/ox810se-wd-mbwe.dts
+++ b/arch/arm/boot/dts/ox810se-wd-mbwe.dts
@@ -103,6 +103,10 @@ rtc0: rtc@48 {
};
};

+&dma {
+ status = "okay";
+};
+
&uart1 {
status = "okay";

diff --git a/arch/arm/boot/dts/ox810se.dtsi b/arch/arm/boot/dts/ox810se.dtsi
index 0755e5864c4a..79b2b49dcfbb 100644
--- a/arch/arm/boot/dts/ox810se.dtsi
+++ b/arch/arm/boot/dts/ox810se.dtsi
@@ -334,6 +334,27 @@ timer0: timer@200 {
interrupts = <4 5>;
};
};
+
+ dma: dma-controller@600000 {
+ compatible = "oxsemi,ox810se-dma";
+ reg = <0x600000 0x100000>,
+ <0xc00000 0x100000>;
+ reg-names = "dma", "sgdma";
+ interrupts = <13>, <14>, <15>, <16>, <20>;
+ clocks = <&stdclk 1>;
+ resets = <&reset 8>, <&reset 24>;
+ reset-names = "dma", "sgdma";
+
+ /* Encodes the authorized memory types */
+ oxsemi,targets-types =
+ <0x45900000 0x45a00000 0>, /* SATA */
+ <0x42000000 0x43000000 0>, /* SATA DATA */
+ <0x48000000 0x58000000 15>, /* DDR */
+ <0x58000000 0x58020000 15>; /* SRAM */
+
+ #dma-cells = <1>;
+ dma-channels = <5>;
+ };
};
};
};
--
2.25.1