Commit 785d7fab authored by Dirk Behme's avatar Dirk Behme Committed by Shawn Guo
Browse files

ARM: imx6: Add UART2 for low-level debug 



To be able to enable early debugging on boards using the UART2 for the
console, add the option for early debugging on UART2.

Signed-off-by: default avatarDirk Behme <dirk.behme@de.bosch.com>
Signed-off-by: default avatarShawn Guo <shawn.guo@linaro.org>
parent ef441806

arch/arm/Kconfig.debug

+8 −0
Original line number Diff line number Diff line
@@ -180,6 +180,14 @@ choice 
		  Say Y here if you want kernel low-level debugging support

		  on i.MX50 or i.MX53.



	config DEBUG_IMX6Q_UART2

		bool "i.MX6Q Debug UART2"

		depends on SOC_IMX6Q

		help

		  Say Y here if you want kernel low-level debugging support

		  on i.MX6Q UART2. This is correct for e.g. the SabreLite

                  board.



	config DEBUG_IMX6Q_UART4

		bool "i.MX6Q Debug UART4"

		depends on SOC_IMX6Q

arch/arm/mach-imx/lluart.c

+6 −0
Original line number Diff line number Diff line
@@ -17,6 +17,12 @@ 
#include <mach/hardware.h>



static struct map_desc imx_lluart_desc = {

#ifdef CONFIG_DEBUG_IMX6Q_UART2

	.virtual	= MX6Q_IO_P2V(MX6Q_UART2_BASE_ADDR),

	.pfn		= __phys_to_pfn(MX6Q_UART2_BASE_ADDR),

	.length		= MX6Q_UART2_SIZE,

	.type		= MT_DEVICE,

#endif

#ifdef CONFIG_DEBUG_IMX6Q_UART4

	.virtual	= MX6Q_IO_P2V(MX6Q_UART4_BASE_ADDR),

	.pfn		= __phys_to_pfn(MX6Q_UART4_BASE_ADDR),

arch/arm/plat-mxc/include/mach/debug-macro.S

+2 −0
Original line number Diff line number Diff line
@@ -24,6 +24,8 @@ 
#define UART_PADDR	MX51_UART1_BASE_ADDR

#elif defined (CONFIG_DEBUG_IMX50_IMX53_UART)

#define UART_PADDR	MX53_UART1_BASE_ADDR

#elif defined (CONFIG_DEBUG_IMX6Q_UART2)

#define UART_PADDR	MX6Q_UART2_BASE_ADDR

#elif defined (CONFIG_DEBUG_IMX6Q_UART4)

#define UART_PADDR	MX6Q_UART4_BASE_ADDR

#endif

arch/arm/plat-mxc/include/mach/mx6q.h

+2 −0
Original line number Diff line number Diff line
@@ -27,6 +27,8 @@ 
#define MX6Q_CCM_SIZE			0x4000

#define MX6Q_ANATOP_BASE_ADDR		0x020c8000

#define MX6Q_ANATOP_SIZE		0x1000

#define MX6Q_UART2_BASE_ADDR		0x021e8000

#define MX6Q_UART2_SIZE			0x4000

#define MX6Q_UART4_BASE_ADDR		0x021f0000

#define MX6Q_UART4_SIZE			0x4000