[PATCH v10] ARM: brcmstb: add debug UART for earlyprintk support

[computersforpeace@gmail.com (Brian Norris)]

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On Wed, Aug 13, 2014 at 03:50:02PM -0700, Brian Norris wrote:
> From: Marc Carino <marc.ceeeee@gmail.com>
> 
> Add the UART definitions needed to support earlyprintk on brcmstb machines.
> 
> Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
> Acked-by: Florian Fainelli <f.fainelli@gmail.com>
> Acked-by: Arnd Bergmann <arnd@arndb.de>
> Signed-off-by: Brian Norris <computersforpeace@gmail.com>
> ---
> This patch was left out in the cold, since Russell wouldn't take it
> 
> Sent against Linus' current head, since there were Kconfig.debug changes merged
> from both arm-soc/next/dt and arm-soc/next/soc (this is confusing!)
> 
>  arch/arm/Kconfig.debug | 16 +++++++++++++++-
>  1 file changed, 15 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> index b11ad54f8d17..a985c2898075 100644
> --- a/arch/arm/Kconfig.debug
> +++ b/arch/arm/Kconfig.debug
> @@ -130,6 +130,17 @@ choice
>  		  Say Y here if you want kernel low-level debugging support
>  		  on Marvell Berlin SoC based platforms.
>  
> +	config DEBUG_BRCMSTB_UART
> +		bool "Use BRCMSTB UART for low-level debug"
> +		depends on ARCH_BRCMSTB
> +		select DEBUG_UART_8250
> +		help
> +		  Say Y here if you want the debug print routines to direct
> +		  their output to the first serial port on these devices.
> +
> +		  If you have a Broadcom STB chip and would like early print
> +		  messages to appear over the UART, select this option.
> +
>  	config DEBUG_CLPS711X_UART1
>  		bool "Kernel low-level debugging messages via UART1"
>  		depends on ARCH_CLPS711X
> @@ -1110,6 +1121,7 @@ config DEBUG_UART_PHYS
>  	default 0xd4018000 if DEBUG_MMP_UART3
>  	default 0xe0000000 if ARCH_SPEAR13XX
>  	default 0xf0000be0 if ARCH_EBSA110
> +	default 0xf040ab00 if DEBUG_BRCMSTB_UART
>  	default 0xf1012000 if DEBUG_MVEBU_UART_ALTERNATE
>  	default 0xf1012000 if ARCH_DOVE || ARCH_MV78XX0 || \
>  				ARCH_ORION5X
> @@ -1157,6 +1169,7 @@ config DEBUG_UART_VIRT
>  	default 0xfa71e000 if DEBUG_QCOM_UARTDM
>  	default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
>  	default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
> +	default 0xfc40ab00 if DEBUG_BRCMSTB_UART
>  	default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
>  	default 0xfd000000 if ARCH_SPEAR13XX
>  	default 0xfd012000 if ARCH_MV78XX0
> @@ -1210,7 +1223,8 @@ config DEBUG_UART_8250_WORD
>  		ARCH_KEYSTONE || \
>  		DEBUG_DAVINCI_DMx_UART0 || DEBUG_DAVINCI_DA8XX_UART1 || \
>  		DEBUG_DAVINCI_DA8XX_UART2 || \
> -		DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2
> +		DEBUG_BCM_KONA_UART || DEBUG_RK32_UART2 || \
> +		DEBUG_BRCMSTB_UART
>  
>  config DEBUG_UART_8250_FLOW_CONTROL
>  	bool "Enable flow control for 8250 UART"
> -- 
> 1.9.1
>