[PATCH v2 04/66] ARM: dts: sun8i: v3s: Add mbus node to represent the interconnect

Paul Kocialkowski
2022-02-05T18:54:58Z

The V3s uses the mbus interconnect to provide DRAM access for a
number of blocks. The SoC can only map 2 GiB of DRAM, which is
reflected in the dma-ranges property.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
---
arch/arm/boot/dts/sun8i-v3s.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-v3s.dtsi b/arch/arm/boot/dts/sun8i-v3s.dtsi
index 084323d5c61c..1b3048b6f197 100644
--- a/arch/arm/boot/dts/sun8i-v3s.dtsi
+++ b/arch/arm/boot/dts/sun8i-v3s.dtsi
@@ -577,6 +577,16 @@ int_mii_phy: ethernet-phy@1 {
};
};

+ mbus: dram-controller@1c62000 {
+ compatible = "allwinner,sun8i-v3s-mbus";
+ reg = <0x01c62000 0x1000>;
+ clocks = <&ccu CLK_MBUS>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ dma-ranges = <0x00000000 0x40000000 0x80000000>;
+ #interconnect-cells = <1>;
+ };
+
spi0: spi@1c68000 {
compatible = "allwinner,sun8i-h3-spi";
reg = <0x01c68000 0x1000>;
--
2.34.1