Re: [Xen-devel] [PATCH v2 4/5] arm/early-printk: add support for ARM Fastmodel

[Julien Grall <julien.grall@xxxxxxxxxx>]

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

> Though the ARM Fastmodel software emulator mimics a Versatile Express
> board, the boot process is different compared to the real hardware,
> so the early printk differs slightly. Create a new early-printk
> target to model this correctly.
> 
> 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          | 6 ++++++
>  2 files changed, 7 insertions(+)
> 
> diff --git a/docs/misc/arm/early-printk.txt b/docs/misc/arm/early-printk.txt
> index 9220113..e423cc4 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
> +  - fastmodel: printk on ARM Fastmodel software emulators
>  
>  The base address and baud rate is hardcoded in xen/arch/arm/Rules.mk,
>  see there when adding support for new machines.
> diff --git a/xen/arch/arm/Rules.mk b/xen/arch/arm/Rules.mk
> index 902bddb..d010c69 100644
> --- a/xen/arch/arm/Rules.mk
> +++ b/xen/arch/arm/Rules.mk
> @@ -47,6 +47,12 @@ EARLY_PRINTK_INC := pl011
>  EARLY_PRINTK_BAUD := 38400
>  EARLY_UART_BASE_ADDRESS := 0x1c090000
>  endif
> +ifeq ($(CONFIG_EARLY_PRINTK), fastmodel)
> +EARLY_PRINTK_INC := pl011
> +EARLY_PRINTK_INIT_UART := y
> +EARLY_PRINTK_BAUD := 115200
> +EARLY_UART_BASE_ADDRESS := 0x1c090000
> +endif
>  ifeq ($(CONFIG_EARLY_PRINTK), exynos5250)
>  EARLY_PRINTK_INC := exynos4210
>  EARLY_PRINTK_INIT_UART := y



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