The H6 SoC contains an undocumented but fully functional RSB controller.
Add support for it. The MMIO register address matches other SoCs of the
same generation, and the IRQ matches a hole in the documented IRQ list.
Signed-off-by: Samuel Holland <samuel@xxxxxxxxxxxx>
---
arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
index 8a62a9fbe347..b043beea8e6e 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h6.dtsi
@@ -949,6 +949,11 @@ r_ir_rx_pin: r-ir-rx-pin {
pins = "PL9";
function = "s_cir_rx";
};
+
+ r_rsb_pins: r-rsb-pins {
+ pins = "PL0", "PL1";
+ function = "s_rsb";
+ };
};
r_ir: ir@7040000 {
@@ -979,6 +984,20 @@ r_i2c: i2c@7081400 {
#size-cells = <0>;
};
+ r_rsb: rsb@7083000 {
+ compatible = "allwinner,sun8i-a23-rsb";
+ reg = <0x07083000 0x400>;
+ interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&r_ccu CLK_R_APB2_RSB>;
+ clock-frequency = <3000000>;
+ resets = <&r_ccu RST_R_APB2_RSB>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&r_rsb_pins>;
+ status = "disabled";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
ths: thermal-sensor@5070400 {
compatible = "allwinner,sun50i-h6-ths";
reg = <0x05070400 0x100>;
--
2.26.2
