diff options
| author | Alexander Shiyan <shc_work@mail.ru> | 2013-07-31 14:55:45 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-07-31 18:09:35 -0700 |
| commit | 85c996907473e4ef824774b97b26499adf66521f (patch) | |
| tree | ba1d87ea9bb219d4828e9d87888f3df4d4fcdf23 /Documentation | |
| parent | ea4c39beace859139bc184a1aebdccdc12c04a2e (diff) | |
serial: sccnxp: Add DT support
Add DT support to the SCCNCP serial driver.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/tty/serial/sccnxp-serial.txt | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/tty/serial/sccnxp-serial.txt b/Documentation/devicetree/bindings/tty/serial/sccnxp-serial.txt new file mode 100644 index 00000000000..d18b1698133 --- /dev/null +++ b/Documentation/devicetree/bindings/tty/serial/sccnxp-serial.txt @@ -0,0 +1,53 @@ +* NXP (Philips) SCC+++(SCN+++) serial driver + +Required properties: +- compatible: Should be "nxp,<ictype>". The supported ICs include sc2681, + sc2691, sc2692, sc2891, sc2892, sc28202, sc68681 and sc68692. +- reg: Address and length of the register set for the device. +- interrupts: Should contain the interrupt number. If omitted, + polling mode will be used instead, so "poll-interval" property should + be populated in this case. + +Optional properties: +- clocks: Phandle to input clock. If omitted, default IC frequency will be + used instead. +- poll-interval: Poll interval time in nanoseconds. +- vcc-supply: The regulator supplying the VCC to drive the chip. +- nxp,sccnxp-io-cfg: Array contains values for the emulated modem signals. + The number of values depends on the UART-number in the selected chip. + Each value should be composed according to the following rules: + (LINE1 << SIGNAL1) | ... | (LINEX << SIGNALX), where: + LINE - VALUE: + OP0 - 1 + OP1 - 2 + OP2 - 3 + OP3 - 4 + OP4 - 5 + OP5 - 6 + OP6 - 7 + OP7 - 8 + IP0 - 9 + IP1 - 10 + IP2 - 11 + IP3 - 12 + IP4 - 13 + IP5 - 14 + IP6 - 15 + SIGNAL - VALUE: + DTR - 0 + RTS - 4 + DSR - 8 + CTS - 12 + DCD - 16 + RNG - 20 + DIR - 24 + +Example (Dual UART with direction control on OP0 & OP1): +sc2892@10100000 { + compatible = "nxp,sc2892"; + reg = <0x10100000 0x10>; + poll-interval = <10000>; + clocks = <&sc2892_clk>; + vcc-supply = <&sc2892_reg>; + nxp,sccnxp-io-cfg = <0x01000000 0x02000000>; +}; |