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powerpc/512x: add a device tree binding for LocalPlus Bus FIFO

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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>
This commit is contained in:
Alexander Popov 2015-10-12 00:08:02 +03:00 committed by Anatolij Gustschin
parent 1a4bb93f79
commit de03fe287b
3 changed files with 40 additions and 3 deletions
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21
Documentation/devicetree/bindings/powerpc/fsl/mpc512x_lpbfifo.txt Normal file
View file

@ -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";
};

11
arch/powerpc/boot/dts/mpc5121.dtsi
View file

@ -77,7 +77,6 @@ localbus@80000020 {
#address-cells = <2>;
#size-cells = <1>;
reg = <0x80000020 0x40>;
interrupts = <7 0x8>;
ranges = <0x0 0x0 0xfc000000 0x04000000>;
};
@ -329,7 +328,15 @@ ioctl@a000 {
/* 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 {

11
arch/powerpc/boot/dts/mpc5125twr.dts
View file

@ -246,6 +246,14 @@ usb@3000 {
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 @@ pscfifo@11f00 {
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>;
};
};
};