bmips: bcm6318: add bcm6348-iudma support

Signed-off-by: NÁlvaro Fernández Rojas <noltari@gmail.com>

arch/mips/dts/brcm,bcm6318.dtsi

@@ -4,6 +4,7 @@
  */
 
 #include <dt-bindings/clock/bcm6318-clock.h>
+#include <dt-bindings/dma/bcm6318-dma.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/power-domain/bcm6318-power-domain.h>
 #include <dt-bindings/reset/bcm6318-reset.h>
@@ -54,6 +55,12 @@
 			reg = <0x10000004 0x4>;
 			#clock-cells = <1>;
 		};
+
+		ubus_clk: ubus-clk {
+			compatible = "brcm,bcm6345-clk";
+			reg = <0x10000008 0x4>;
+			#clock-cells = <1>;
+		};
 	};
 
 	ubus {
@@ -182,5 +189,17 @@
 
 			status = "disabled";
 		};
+
+		iudma: dma-controller@10088000 {
+			compatible = "brcm,bcm6368-iudma";
+			reg = <0x10088000 0x80>,
+			      <0x10088200 0x80>,
+			      <0x10088400 0x80>;
+			reg-names = "dma",
+				    "dma-channels",
+				    "dma-sram";
+			#dma-cells = <1>;
+			dma-channels = <8>;
+		};
 	};
 };

include/dt-bindings/dma/bcm6318-dma.h

+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Álvaro Fernández Rojas <noltari@gmail.com>
+ *
+ * Derived from linux/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+ */
+
+#ifndef __DT_BINDINGS_DMA_BCM6318_H
+#define __DT_BINDINGS_DMA_BCM6318_H
+
+#define BCM6318_DMA_ENETSW_RX	0
+#define BCM6318_DMA_ENETSW_TX	1
+
+#endif /* __DT_BINDINGS_DMA_BCM6318_H */