From aa25115aff14a149a6b611fe54776c142e483781 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Mon, 19 Nov 2012 12:09:41 +0100 Subject: [PATCH] ARM: sunxi: Add earlyprintk support for UART0 (sun4i) Signed-off-by: Stefan Roese Acked-by: Arnd Bergmann Signed-off-by: Maxime Ripard --- arch/arm/Kconfig.debug | 9 ++++++++- arch/arm/include/debug/sunxi.S | 5 ++++- 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index f12bc3a..cc1ed35 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" diff --git a/arch/arm/include/debug/sunxi.S b/arch/arm/include/debug/sunxi.S index 3bf61ca..04eb56d 100644 --- a/arch/arm/include/debug/sunxi.S +++ b/arch/arm/include/debug/sunxi.S @@ -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 -- 2.7.4