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SubjectRe: [PATCH] ARM: debug-ll: add default address for digicolor
Hi Arnd,

On Tue, Apr 16, 2019 at 03:17:30PM +0200, Arnd Bergmann wrote:
> The digicolor platform has three UARTs, but the Kconfig.debug
> file explicitly lists port zero as the one to be used for the
> console, while not providing any default values.
>
> This can get an automated randconfig build stuck in a loop
> waiting for the user to input the number. As we already know
> the physical address, this patch provides that number as
> default, along with a reasonable default value for the virtual
> address.
>
> Cc: Baruch Siach <baruch@tkos.co.il>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> arch/arm/Kconfig.debug | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
> index a8a1e14f20ab..e5f0b36d797f 100644
> --- a/arch/arm/Kconfig.debug
> +++ b/arch/arm/Kconfig.debug
> @@ -1676,6 +1676,7 @@ config DEBUG_UART_PHYS
> default 0xe6e68000 if DEBUG_RCAR_GEN2_SCIF1
> default 0xe6ee0000 if DEBUG_RCAR_GEN2_SCIF4
> default 0xe8008000 if DEBUG_R7S72100_SCIF2
> + default 0xf0000740 if DEBUG_DIGICOLOR_UA0

The addruart macro in arch/arm/include/debug/digicolor.S adds the 0x740 offset.
So CONFIG_DEBUG_UART_PHYS should be 0xf0000000.

> default 0xf0000be0 if ARCH_EBSA110
> default 0xf1012000 if DEBUG_MVEBU_UART0_ALTERNATE
> default 0xf1012100 if DEBUG_MVEBU_UART1_ALTERNATE
> @@ -1785,6 +1786,7 @@ config DEBUG_UART_VIRT
> default 0xfd012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_MV78XX0
> default 0xfd883000 if DEBUG_ALPINE_UART0
> default 0xfde12000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_DOVE
> + default 0xfe000740 if DEBUG_DIGICOLOR_UA0

The value I used when testing used to be 0xf0100000.

> default 0xfe012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_ORION5X
> default 0xfe017000 if DEBUG_MMP_UART2
> default 0xfe018000 if DEBUG_MMP_UART3

Thanks,
baruch

--
http://baruch.siach.name/blog/ ~. .~ Tk Open Systems
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