On Mon, May 26, 2014 at 05:25:43PM +0800, Chen-Yu Tsai wrote: > On Mon, May 26, 2014 at 2:46 AM, Maxime Ripard > <maxime.ripard@xxxxxxxxxxxxxxxxxx> wrote: > > Hi, > > > > On Fri, May 23, 2014 at 03:51:22PM +0800, Chen-Yu Tsai wrote: > >> sun6i/sun8i have a UART in the RTC block group, which can be used > >> as an early console. This is most useful on sun8i as UART0 is muxed > >> with MMC0, which is not available if we boot from MMC. > >> > >> Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx> > >> --- > >> arch/arm/Kconfig.debug | 10 ++++++++++ > >> 1 file changed, 10 insertions(+) > >> > >> diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug > >> index eab8ecb..9e22708 100644 > >> --- a/arch/arm/Kconfig.debug > >> +++ b/arch/arm/Kconfig.debug > >> @@ -694,6 +694,14 @@ choice > >> Say Y here if you want kernel low-level debugging support > >> on Allwinner A1X based platforms on the UART1. > >> > >> + config DEBUG_SUNXI_R_UART > >> + bool "Kernel low-level debugging messages via sunXi R_UART" > >> + depends on ARCH_SUNXI > > > > It should rather depend on MACH_SUN8I. > > I assume no sun6i devices would use it, or have pads available for > it? If so, then MACH_SUN8I makes sense. Then a depends on MACH_SUN6I || MACH_SUN8I. Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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