Subject: [PATCH v2 2/7] ARM: mvebu: Add UART1 as DEBUG_LL possible target

From: [email-masked] (Gregory CLEMENT)
Date: Tue, 06 Jan 2015 22:08:48 +0100

Hi Maxime,

On 06/01/2015 16:28, Maxime Ripard wrote:
> Some mvebu boards have the UART1 more easily accessible than the other UARTs
> found on the system.
> 
> Add a debug_ll option for this case.
> 
> Signed-off-by: Maxime Ripard <[email-masked]>
> Acked-by: Jason Cooper <[email-masked]>

Acked-by: Gregory CLEMENT <[email-masked]>

Thanks,

Gregory
> ---
>  arch/arm/Kconfig.debug | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> index eb3991cf63ab..7bd1bbccc43c 100644
> --- a/arch/arm/Kconfig.debug
> +++ b/arch/arm/Kconfig.debug
> @@ -489,6 +489,21 @@ choice
>  		  when u-boot hands over to the kernel, the system
>  		  silently crashes, with no serial output at all.
>  
> +	config DEBUG_MVEBU_UART1_ALTERNATE
> +		bool "Kernel low-level debugging messages via MVEBU UART1 (new bootloaders)"
> +		depends on ARCH_MVEBU
> +		select DEBUG_UART_8250
> +		help
> +		  Say Y here if you want kernel low-level debugging support
> +		  on MVEBU based platforms on UART1.
> +
> +		  This option should be used with the new bootloaders
> +		  that remap the internal registers at 0xf1000000.
> +
> +		  If the wrong DEBUG_MVEBU_UART* option is selected,
> +		  when u-boot hands over to the kernel, the system
> +		  silently crashes, with no serial output at all.
> +
>  	config DEBUG_VF_UART
>  		bool "Vybrid UART"
>  		depends on SOC_VF610
> @@ -1297,6 +1312,7 @@ config DEBUG_UART_PHYS
>  	default 0xf0000be0 if ARCH_EBSA110
>  	default 0xf040ab00 if DEBUG_BRCMSTB_UART
>  	default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
> +	default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
>  	default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
>  				ARCH_ORION5X
>  	default 0xf7fc9000 if DEBUG_BERLIN_UART
> @@ -1378,6 +1394,7 @@ config DEBUG_UART_VIRT
>  	default 0xfeb31000 if DEBUG_KEYSTONE_UART1
>  	default 0xfec02000 if DEBUG_SOCFPGA_UART
>  	default 0xfec12000 if DEBUG_MVEBU_UART0 || DEBUG_MVEBU_UART0_ALTERNATE
> +	default 0xfec12100 if DEBUG_MVEBU_UART1_ALTERNATE
>  	default 0xfec20000 if DEBUG_DAVINCI_DMx_UART0
>  	default 0xfec90000 if DEBUG_RK32_UART2
>  	default 0xfed0c000 if DEBUG_DAVINCI_DA8XX_UART1
> 

-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com