[PATCH] MIPS: qemu-malta: add CBUS UART support

[Sascha Hauer]

On Wed, Apr 02, 2014 at 11:41:31AM +0400, Antony Pavlov wrote:
> This patch adds CBUS UART dts support;
> also it adds the necessary macros for DEBUG_LL.
> 
> qemu-malta supports three serial interfaces:
> 
>   * two ports are provided by the FDC37M817
>     Super I/O; this chip is connected via LPC bus
>     to Intel 82371EB (PIIX4E) South Bridge;
> 
>   * the third serial port is provided by
>     the discrete TI 16C550C (CBUS UART);
>     this chip is connected via CBUS directly
>     to the board's GT64120 North Bridge.
> 
> See Malta User's Manual (MD00048) for details.
> 
> CBUS UART Instructions for use:
> 
>   1. Enable CONFIG_CONSOLE_ACTIVATE_ALL in .config
>      (or disable uart0 in dts) and compile barebox;
> 
>   2. run qemu:
> 
>      qemu-system-mips -nographic -nodefaults \
>         -monitor null -M malta -m 256 \
>         -serial null -serial null -serial stdio \
>         -bios barebox-flash-image
> 
> Signed-off-by: Antony Pavlov <antonynpavlov at gmail.com>

Applied, thanks

Sascha

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