[U-Boot] [RFC 04/14] bmips: bcm6348: add bcm6348-iudma support

[Álvaro Fernández Rojas]

Signed-off-by: Álvaro Fernández Rojas <noltari at gmail.com>
---
 arch/mips/dts/brcm,bcm6348.dtsi       | 16 ++++++++++++++++
 include/dt-bindings/dma/bcm6348-dma.h | 17 +++++++++++++++++
 2 files changed, 33 insertions(+)
 create mode 100644 include/dt-bindings/dma/bcm6348-dma.h

diff --git a/arch/mips/dts/brcm,bcm6348.dtsi b/arch/mips/dts/brcm,bcm6348.dtsi
index 92fb91afc1..d774c59665 100644
--- a/arch/mips/dts/brcm,bcm6348.dtsi
+++ b/arch/mips/dts/brcm,bcm6348.dtsi
@@ -5,6 +5,7 @@
  */
 
 #include <dt-bindings/clock/bcm6348-clock.h>
+#include <dt-bindings/dma/bcm6348-dma.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/reset/bcm6348-reset.h>
 #include "skeleton.dtsi"
@@ -160,5 +161,20 @@
 			reg = <0xfffe2300 0x38>;
 			u-boot,dm-pre-reloc;
 		};
+
+		iudma: dma-controller at fffe7000 {
+			compatible = "brcm,bcm6348-iudma";
+			reg = <0xfffe7000 0x1c>,
+			      <0xfffe7100 0x40>,
+			      <0xfffe7200 0x40>;
+			reg-names = "dma",
+				    "dma-channels",
+				    "dma-sram";
+			#dma-cells = <1>;
+			dma-channels = <4>;
+			clocks = <&periph_clk BCM6348_CLK_ENET>;
+			resets = <&periph_rst BCM6348_RST_ENET>,
+				 <&periph_rst BCM6348_RST_DMAMEM>;
+		};
 	};
 };
diff --git a/include/dt-bindings/dma/bcm6348-dma.h b/include/dt-bindings/dma/bcm6348-dma.h
new file mode 100644
index 0000000000..a1d3a6456d
--- /dev/null
+++ b/include/dt-bindings/dma/bcm6348-dma.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2018 Álvaro Fernández Rojas <noltari at gmail.com>
+ *
+ * Derived from linux/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __DT_BINDINGS_DMA_BCM6348_H
+#define __DT_BINDINGS_DMA_BCM6348_H
+
+#define BCM6348_DMA_ENET0_RX	0
+#define BCM6348_DMA_ENET0_TX	1
+#define BCM6348_DMA_ENET1_RX	2
+#define BCM6348_DMA_ENET1_TX	3
+
+#endif /* __DT_BINDINGS_DMA_BCM6348_H */
-- 
2.11.0