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
[off-list ref] wrote:

quoted

Hi,

On Fri, May 23, 2014 at 03:51:22PM +0800, Chen-Yu Tsai wrote:

quoted

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 <redacted>
---
 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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