Re: [Xen-devel] [PATCH v2 5/5] arm/early-printk: add Calxeda Midway UART support

[Julien Grall <julien.grall@xxxxxxxxxx>]

On 05/24/2013 02:47 PM, Andre Przywara wrote:

> With the help of the previous patches add a stanza to
> xen/arch/arm/Rules.mk to specify the UART configuration of the
> Calxeda Midway machine.
> The information has been taken from the Linux kernel's .dts file.
> This can be enabled by adding "CONFIG_EARLY_PRINTK=midway" to
> Config.mk.
> 
> Signed-off-by: Andre Przywara <andre.przywara@xxxxxxxxxxx>

Reviewed-by: Julien Grall <julien.grall@xxxxxxxxxx>

> ---
>  docs/misc/arm/early-printk.txt | 1 +
>  xen/arch/arm/Rules.mk          | 5 +++++
>  2 files changed, 6 insertions(+)
> 
> diff --git a/docs/misc/arm/early-printk.txt b/docs/misc/arm/early-printk.txt
> index e423cc4..fbc3208 100644
> --- a/docs/misc/arm/early-printk.txt
> +++ b/docs/misc/arm/early-printk.txt
> @@ -11,6 +11,7 @@ CONFIG_EARLY_PRINTK=mach
>  where mach is the name of the machine:
>    - vexpress: printk with pl011 for versatile express
>    - exynos5250: printk with the second UART
> +  - midway: printk with the pl011 on Calxeda Midway processors
>    - fastmodel: printk on ARM Fastmodel software emulators
>  
>  The base address and baud rate is hardcoded in xen/arch/arm/Rules.mk,
> diff --git a/xen/arch/arm/Rules.mk b/xen/arch/arm/Rules.mk
> index d010c69..422ed04 100644
> --- a/xen/arch/arm/Rules.mk
> +++ b/xen/arch/arm/Rules.mk
> @@ -59,6 +59,11 @@ EARLY_PRINTK_INIT_UART := y
>  EARLY_PRINTK_BAUD := 115200
>  EARLY_UART_BASE_ADDRESS := 0x12c20000
>  endif
> +ifeq ($(CONFIG_EARLY_PRINTK), midway)
> +EARLY_PRINTK_INC := pl011
> +EARLY_PRINTK_BAUD := 115200
> +EARLY_UART_BASE_ADDRESS := 0xfff36000
> +endif
>  
>  ifneq ($(EARLY_PRINTK_INC),)
>  EARLY_PRINTK := y



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