bmips: bcm6338: add bcm6348-iudma support

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

diff --git a/arch/mips/dts/brcm,bcm6338.dtsi b/arch/mips/dts/brcm,bcm6338.dtsi
index bbd58cf803d1b32bf5e042f2e2124f73bdcc1781..990355481c39001d58fd01599f1cb62a71458922 100644 (file)
--- a/arch/mips/dts/brcm,bcm6338.dtsi
+++ b/arch/mips/dts/brcm,bcm6338.dtsi
@@ -4,6 +4,7 @@
  */
 
 #include <dt-bindings/clock/bcm6338-clock.h>
+#include <dt-bindings/dma/bcm6338-dma.h>
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/reset/bcm6338-reset.h>
 #include "skeleton.dtsi"
@@ -130,5 +131,18 @@
                        reg = <0xfffe3100 0x38>;
                        u-boot,dm-pre-reloc;
                };
+
+               iudma: dma-controller@fffe2400 {
+                       compatible = "brcm,bcm6348-iudma";
+                       reg = <0xfffe2400 0x1c>,
+                             <0xfffe2500 0x60>,
+                             <0xfffe2600 0x60>;
+                       reg-names = "dma",
+                                   "dma-channels",
+                                   "dma-sram";
+                       #dma-cells = <1>;
+                       dma-channels = <6>;
+                       resets = <&periph_rst BCM6338_RST_DMAMEM>;
+               };
        };
 };

diff --git a/include/dt-bindings/dma/bcm6338-dma.h b/include/dt-bindings/dma/bcm6338-dma.h
new file mode 100644 (file)
index 0000000..f2e0b20
--- /dev/null
+++ b/include/dt-bindings/dma/bcm6338-dma.h
@@ -0,0 +1,14 @@
+// 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_BCM6338_H
+#define __DT_BINDINGS_DMA_BCM6338_H
+
+#define BCM6338_DMA_ENET_RX    0
+#define BCM6338_DMA_ENET_TX    1
+
+#endif /* __DT_BINDINGS_DMA_BCM6338_H */