ARM: sunxi: Add earlyprintk support for UART0 (sun4i)

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index f12bc3a2c3c0..cc1ed35179a5 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -345,6 +345,13 @@ choice
                   Say Y here if you want kernel low-level debugging support
                   on SOCFPGA based platforms.
 
+        config DEBUG_SUNXI_UART0
+                bool "Kernel low-level debugging messages via sunXi UART0"
+                depends on ARCH_SUNXI
+                help
+                  Say Y here if you want kernel low-level debugging support
+                  on Allwinner A1X based platforms on the UART0.
+
         config DEBUG_SUNXI_UART1
                 bool "Kernel low-level debugging messages via sunXi UART1"
                 depends on ARCH_SUNXI
@@ -423,7 +430,7 @@ config DEBUG_LL_INCLUDE
         default "debug/mvebu.S" if DEBUG_MVEBU_UART
         default "debug/picoxcell.S" if DEBUG_PICOXCELL_UART
         default "debug/socfpga.S" if DEBUG_SOCFPGA_UART
-        default "debug/sunxi.S" if DEBUG_SUNXI_UART1
+        default "debug/sunxi.S" if DEBUG_SUNXI_UART0 || DEBUG_SUNXI_UART1
         default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT || \
                 DEBUG_VEXPRESS_UART0_CA9 || DEBUG_VEXPRESS_UART0_RS1
         default "mach/debug-macro.S"