| Message ID | 1265096864-3506-3-git-send-email-agust@denx.de (mailing list archive) |
|---|---|
| State | Accepted, archived |
| Commit | 4f35e23eb0d62c5cd8b857933a0b6bd56ebdb010 |
| Delegated to: | Grant Likely |
| Headers | show |
On Tue, Feb 2, 2010 at 12:47 AM, Anatolij Gustschin <agust@denx.de> wrote: > Support for MPC5121 PSC UART in the mpc52xx_uart driver > added new DTS properties for FSL MPC5121 PSC FIFO Controller. > Provide documentation of the new properties and some examples. > > Signed-off-by: Anatolij Gustschin <agust@denx.de> > Cc: Grant Likely <grant.likely@secretlab.ca> Acked-by: Grant Likely <grant.likely@secretlab.ca> > --- > .../powerpc/dts-bindings/fsl/mpc5121-psc.txt | 70 ++++++++++++++++++++ > 1 files changed, 70 insertions(+), 0 deletions(-) > create mode 100644 Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt > > diff --git a/Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt b/Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt > new file mode 100644 > index 0000000..8832e87 > --- /dev/null > +++ b/Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt > @@ -0,0 +1,70 @@ > +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 >; > +}; > -- > 1.6.3.3 > >
diff --git a/Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt b/Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt new file mode 100644 index 0000000..8832e87 --- /dev/null +++ b/Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt @@ -0,0 +1,70 @@ +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 >; +};
Support for MPC5121 PSC UART in the mpc52xx_uart driver added new DTS properties for FSL MPC5121 PSC FIFO Controller. Provide documentation of the new properties and some examples. Signed-off-by: Anatolij Gustschin <agust@denx.de> Cc: Grant Likely <grant.likely@secretlab.ca> --- .../powerpc/dts-bindings/fsl/mpc5121-psc.txt | 70 ++++++++++++++++++++ 1 files changed, 70 insertions(+), 0 deletions(-) create mode 100644 Documentation/powerpc/dts-bindings/fsl/mpc5121-psc.txt