Re: [PATCH 2/2] MIPS: Alchemy: UARTs are 16550A

[Andrew Morton <akpm@linux-foundation.org>]

On Wed, 28 Oct 2009 20:09:14 +0100
Manuel Lauss <manuel.lauss@googlemail.com> wrote:

> UART autodetection breaks on the Au1300 but the IP blocks are
> identical, at least in the datasheets.
> 
> Pass uart type on to the 8250 driver via platform data, and move
> the MSR quirk to another place sind autoconf() is now no longer
> called on init.
> 
> Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
> ---
> Tested on DB1200 and DB1300.
> The mips parts apply on top of Ralf's mips-queue tree.
> 
>  arch/mips/alchemy/common/platform.c |    4 +++-
>  drivers/serial/8250.c               |   13 +++++++------
>  2 files changed, 10 insertions(+), 7 deletions(-)
> 
> diff --git a/arch/mips/alchemy/common/platform.c b/arch/mips/alchemy/common/platform.c
> index 195e5b3..3be14b0 100644
> --- a/arch/mips/alchemy/common/platform.c
> +++ b/arch/mips/alchemy/common/platform.c
> @@ -26,7 +26,9 @@
>  		.irq		= _irq,				\
>  		.regshift	= 2,				\
>  		.iotype		= UPIO_AU,			\
> -		.flags		= UPF_SKIP_TEST | UPF_IOREMAP	\
> +		.flags		= UPF_SKIP_TEST | UPF_IOREMAP |	\
> +				  UPF_FIXED_TYPE,		\
> +		.type		= PORT_16550A,			\
>  	}

The kernel which you patched differs from current mainline here.