[PATCH 12/14] powerpc: Add early udbg support for 40x processors
benh at kernel.crashing.org
Thu Nov 22 11:00:01 EST 2007
On Wed, 2007-11-21 at 16:47 -0700, Grant Likely wrote:
> On 11/20/07, Benjamin Herrenschmidt <benh at kernel.crashing.org> wrote:
> > This adds some basic real mode based early udbg support for 40x
> > in order to debug things more easily
> > Signed-off-by: Benjamin Herrenschmidt <benh at kernel.crashing.org>
> > ---
> > --- linux-work.orig/arch/powerpc/platforms/Kconfig.cputype 2007-11-21 12:50:16.000000000 +1100
> > +++ linux-work/arch/powerpc/platforms/Kconfig.cputype 2007-11-21 12:50:18.000000000 +1100
> > @@ -43,6 +43,7 @@ config 40x
> > bool "AMCC 40x"
> > select PPC_DCR_NATIVE
> > select WANT_DEVICE_TREE
> > + select PPC_UDBG_16550
> Unfortunately, this isn't always true. The Xilinx Virtex parts us
> config 40x, but not all FPGA bitstreams have a 16550 serial port.
> Sometimes it's a uartlite instead.
What does uartlite looks like ?
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