/Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt
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- MPC5121 PSC Device Tree Bindings
- PSC in UART mode
- ----------------
- For PSC in UART mode the needed PSC serial devices
- are specified by fsl,mpc5121-psc-uart nodes in the
- fsl,mpc5121-immr SoC node. Additionally the PSC FIFO
- Controller node fsl,mpc5121-psc-fifo is requered there:
- fsl,mpc5121-psc-uart nodes
- --------------------------
- Required properties :
- - compatible : Should contain "fsl,mpc5121-psc-uart" and "fsl,mpc5121-psc"
- - cell-index : Index of the PSC in hardware
- - reg : Offset and length of the register set for the PSC device
- - interrupts : <a b> where a is the interrupt number of the
- PSC FIFO Controller and b is a field that represents an
- encoding of the sense and level information for the interrupt.
- - interrupt-parent : the phandle for the interrupt controller that
- services interrupts for this device.
- Recommended properties :
- - fsl,rx-fifo-size : the size of the RX fifo slice (a multiple of 4)
- - fsl,tx-fifo-size : the size of the TX fifo slice (a multiple of 4)
- fsl,mpc5121-psc-fifo node
- -------------------------
- Required properties :
- - compatible : Should be "fsl,mpc5121-psc-fifo"
- - reg : Offset and length of the register set for the PSC
- FIFO Controller
- - interrupts : <a b> where a is the interrupt number of the
- PSC FIFO Controller and b is a field that represents an
- encoding of the sense and level information for the interrupt.
- - interrupt-parent : the phandle for the interrupt controller that
- services interrupts for this device.
- Example for a board using PSC0 and PSC1 devices in serial mode:
- serial@11000 {
- compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
- cell-index = <0>;
- reg = <0x11000 0x100>;
- interrupts = <40 0x8>;
- interrupt-parent = < &ipic >;
- fsl,rx-fifo-size = <16>;
- fsl,tx-fifo-size = <16>;
- };
- serial@11100 {
- compatible = "fsl,mpc5121-psc-uart", "fsl,mpc5121-psc";
- cell-index = <1>;
- reg = <0x11100 0x100>;
- interrupts = <40 0x8>;
- interrupt-parent = < &ipic >;
- fsl,rx-fifo-size = <16>;
- fsl,tx-fifo-size = <16>;
- };
- pscfifo@11f00 {
- compatible = "fsl,mpc5121-psc-fifo";
- reg = <0x11f00 0x100>;
- interrupts = <40 0x8>;
- interrupt-parent = < &ipic >;
- };