On Fri, Feb 15, 2008 at 6:40 AM, Pavel Kiryukhin <[EMAIL PROTECTED]> wrote: > Add uart 16550 properties description to Xilinx portion of > booting-without-of.txt > > Signed-off-by: Pavel Kiryukhin <[EMAIL PROTECTED]> > --- > Documentation/powerpc/booting-without-of.txt | 16 ++++++++++++++-- > 1 files changed, 14 insertions(+), 2 deletions(-) > > diff --git a/Documentation/powerpc/booting-without-of.txt > b/Documentation/powerpc/booting-without-of.txt > index 7b4e8a7..dd77bbc 100644 > --- a/Documentation/powerpc/booting-without-of.txt > +++ b/Documentation/powerpc/booting-without-of.txt > @@ -2575,10 +2575,22 @@ platforms are moved over to use the > flattened-device-tree model. > > Xilinx uartlite devices are simple fixed speed serial ports. > > - Requred properties: > + Required properties: > - current-speed : Baud rate of uartlite > > - v) Xilinx hwicap > + v) Xilinx Uart 16550 > + > + Xilinx uart 16550 device registers are compatible with all standard > 16540 > + and 16550 UARTs.
Not strictly true; the xilinx uart is *almost* compatible with the ns16550. The same driver can be made to work, but it is not register level compatible so we cannot claim compatible="ns16550". We need a new compatible property for 16550 like devices with a reg shift and offset. Instead of attempting to come up with a generic description of this, I recommend just naming it after the actual device instance; something like compatible="xlnx,opb-uart16550"; Cheers, g. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
