diff options
| author | Vineet Gupta <Vineet.Gupta1@synopsys.com> | 2013-01-11 07:20:23 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-16 07:16:05 +0100 |
| commit | ea28fd56fcde69af768135e428093f94c5ca6a88 (patch) | |
| tree | e9f834f511507ded2c43beaf3d00a0227d77c519 /Documentation | |
| parent | serial/arc-uart: platform_data order changed (diff) | |
| download | linux-ea28fd56fcde69af768135e428093f94c5ca6a88.tar.xz linux-ea28fd56fcde69af768135e428093f94c5ca6a88.zip | |
serial/arc-uart: switch to devicetree based probing
* DT binding for arc-uart
* With alll the bits in place we can now use DT probing.
Note that there's a bit of kludge right now because earlyprintk portion
of driver can't use the DT infrastrcuture to get resoures/plat_data.
This requires some infrastructre changes to of_flat_ framework
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Alan Cox <alan@linux.intel.com>
Cc: devicetree-discuss@lists.ozlabs.org
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Rob Landley <rob@landley.net>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/tty/serial/arc-uart.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/tty/serial/arc-uart.txt b/Documentation/devicetree/bindings/tty/serial/arc-uart.txt new file mode 100644 index 000000000000..c3bd8f9c9997 --- /dev/null +++ b/Documentation/devicetree/bindings/tty/serial/arc-uart.txt @@ -0,0 +1,26 @@ +* Synopsys ARC UART : Non standard UART used in some of the ARC FPGA boards + +Required properties: +- compatible : "snps,arc-uart" +- reg : offset and length of the register set for the device. +- interrupts : device interrupt +- clock-frequency : the input clock frequency for the UART +- baud : baud rate for UART + +e.g. + +arcuart0: serial@c0fc1000 { + compatible = "snps,arc-uart"; + reg = <0xc0fc1000 0x100>; + interrupts = <5>; + clock-frequency = <80000000>; + baud = <115200>; + status = "okay"; +}; + +Note: Each port should have an alias correctly numbered in "aliases" node. + +e.g. +aliases { + serial0 = &arcuart0; +}; |