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authorStefan Roese <sr@denx.de>2012-11-19 12:09:41 +0100
committerMaxime Ripard <maxime.ripard@free-electrons.com>2012-11-20 15:36:21 +0100
commitaa25115aff14a149a6b611fe54776c142e483781 (patch)
tree2c921beb5fde7c9e6f2c238b8d2321892e3a09c0
parentde0bf33fc2b0b1d4b1419adf645fb36e9e52781a (diff)
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>
-rw-r--r--arch/arm/Kconfig.debug9
-rw-r--r--arch/arm/include/debug/sunxi.S5
2 files changed, 12 insertions, 2 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"
diff --git a/arch/arm/include/debug/sunxi.S b/arch/arm/include/debug/sunxi.S
index 3bf61ca0df75..04eb56d5db2c 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