Commit aa25115a authored by Stefan Roese's avatar Stefan Roese Committed by Maxime Ripard
Browse files

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



Signed-off-by: default avatarStefan Roese <sr@denx.de>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarMaxime Ripard <maxime.ripard@free-electrons.com>
parent de0bf33f

arch/arm/Kconfig.debug

+8 −1
Original line number Diff line number Diff line
@@ -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"

arch/arm/include/debug/sunxi.S

+4 −1
Original line number Diff line number Diff line
@@ -10,7 +10,10 @@ 
 * published by the Free Software Foundation.

*/



#ifdef CONFIG_DEBUG_SUNXI_UART1

#if defined(CONFIG_DEBUG_SUNXI_UART0)

#define SUNXI_UART_DEBUG_PHYS_BASE 0x01c28000

#define SUNXI_UART_DEBUG_VIRT_BASE 0xf1c28000

#elif defined(CONFIG_DEBUG_SUNXI_UART1)

#define SUNXI_UART_DEBUG_PHYS_BASE 0x01c28400

#define SUNXI_UART_DEBUG_VIRT_BASE 0xf1c28400

#endif