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authorAlexander Popov <alex.popov@linux.com>2015-10-12 00:08:02 +0300
committerAnatolij Gustschin <agust@denx.de>2015-10-22 15:20:47 +0200
commitde03fe287bb62e7961ea51d8a1bbae3167852252 (patch)
tree81dc4041edd796fab618d387889562734d8c8924
parent1a4bb93f795502e7e8350d4af1aa5909f15ffc28 (diff)
powerpc/512x: add a device tree binding for LocalPlus Bus FIFO
Add a device tree binding for Freescale MPC512x LocalPlus Bus FIFO and introduce the document describing that binding. Signed-off-by: Alexander Popov <alex.popov@linux.com> Signed-off-by: Anatolij Gustschin <agust@denx.de>
-rw-r--r--Documentation/devicetree/bindings/powerpc/fsl/mpc512x_lpbfifo.txt21
-rw-r--r--arch/powerpc/boot/dts/mpc5121.dtsi11
-rw-r--r--arch/powerpc/boot/dts/mpc5125twr.dts11
3 files changed, 40 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/mpc512x_lpbfifo.txt b/Documentation/devicetree/bindings/powerpc/fsl/mpc512x_lpbfifo.txt
new file mode 100644
index 000000000000..b3b392fe1f61
--- /dev/null
+++ b/Documentation/devicetree/bindings/powerpc/fsl/mpc512x_lpbfifo.txt
@@ -0,0 +1,21 @@
+Freescale MPC512x LocalPlus Bus FIFO (called SCLPC in the Reference Manual)
+
+Required properties:
+- compatible: should be "fsl,mpc512x-lpbfifo";
+- reg: should contain the offset and length of SCLPC register set;
+- interrupts: should contain the interrupt specifier for SCLPC; syntax of an
+ interrupt client node is described in interrupt-controller/interrupts.txt;
+- dmas: should contain the DMA specifier for SCLPC as described at
+ dma/dma.txt and dma/mpc512x-dma.txt;
+- dma-names: should be "rx-tx";
+
+Example:
+
+ sclpc@10100 {
+ compatible = "fsl,mpc512x-lpbfifo";
+ reg = <0x10100 0x50>;
+ interrupts = <7 0x8>;
+ dmas = <&dma0 26>;
+ dma-names = "rx-tx";
+ };
+
diff --git a/arch/powerpc/boot/dts/mpc5121.dtsi b/arch/powerpc/boot/dts/mpc5121.dtsi
index 7f9d14f5c4da..a015e450437a 100644
--- a/arch/powerpc/boot/dts/mpc5121.dtsi
+++ b/arch/powerpc/boot/dts/mpc5121.dtsi
@@ -77,7 +77,6 @@
#address-cells = <2>;
#size-cells = <1>;
reg = <0x80000020 0x40>;
- interrupts = <7 0x8>;
ranges = <0x0 0x0 0xfc000000 0x04000000>;
};
@@ -329,7 +328,15 @@
/* LocalPlus controller */
lpc@10000 {
compatible = "fsl,mpc5121-lpc";
- reg = <0x10000 0x200>;
+ reg = <0x10000 0x100>;
+ };
+
+ sclpc@10100 {
+ compatible = "fsl,mpc512x-lpbfifo";
+ reg = <0x10100 0x50>;
+ interrupts = <7 0x8>;
+ dmas = <&dma0 26>;
+ dma-names = "rx-tx";
};
pata@10200 {
diff --git a/arch/powerpc/boot/dts/mpc5125twr.dts b/arch/powerpc/boot/dts/mpc5125twr.dts
index e4f297471748..898eb58e49dd 100644
--- a/arch/powerpc/boot/dts/mpc5125twr.dts
+++ b/arch/powerpc/boot/dts/mpc5125twr.dts
@@ -246,6 +246,14 @@
status = "disabled";
};
+ sclpc@10100 {
+ compatible = "fsl,mpc512x-lpbfifo";
+ reg = <0x10100 0x50>;
+ interrupts = <7 0x8>;
+ dmas = <&dma0 26>;
+ dma-names = "rx-tx";
+ };
+
// 5125 PSCs are not 52xx or 5121 PSC compatible
// PSC1 uart0 aka ttyPSC0
serial@11100 {
@@ -279,10 +287,11 @@
clock-names = "ipg";
};
- dma@14000 {
+ dma0: dma@14000 {
compatible = "fsl,mpc5121-dma"; // BSP name: "mpc512x-dma2"
reg = <0x14000 0x1800>;
interrupts = <65 0x8>;
+ #dma-cells = <1>;
};
};
};