Commit fa4cd2a8 authored by Haojian Zhuang's avatar Haojian Zhuang
Browse files

ARM: mmp: implement DEBUG_LL port choice 



DEBUG_LL port must be choiced in arch-mmp. DEBUG_LL port should be
UART2 in TTC DKB. And it should be UART3 in brownstone.

Signed-off-by: default avatarHaojian Zhuang <haojian.zhuang@gmail.com>
parent 0d7614f0

arch/arm/Kconfig.debug

+14 −0
Original line number Diff line number Diff line
@@ -224,6 +224,20 @@ choice 
		  Say Y here if you want kernel low-level debugging support

		  on i.MX6Q UART4.



	config DEBUG_MMP_UART2

		bool "Kernel low-level debugging message via MMP UART2"

		depends on ARCH_MMP

		help

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

		  on MMP UART2.



	config DEBUG_MMP_UART3

		bool "Kernel low-level debugging message via MMP UART3"

		depends on ARCH_MMP

		help

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

		  on MMP UART3.



	config DEBUG_MSM_UART1

		bool "Kernel low-level debugging messages via MSM UART1"

		depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50

arch/arm/mach-mmp/include/mach/debug-macro.S

+10 −2
Original line number Diff line number Diff line
@@ -9,13 +9,21 @@ 
 * published by the Free Software Foundation.

 */



#if defined(CONFIG_DEBUG_MMP_UART2)

#define MMP_UART_OFFSET	0x00017000

#elif defined(CONFIG_DEBUG_MMP_UART3)

#define MMP_UART_OFFSET	0x00018000

#else

#error "Select uart for DEBUG_LL"

#endif



#include <mach/addr-map.h>



		.macro	addruart, rp, rv, tmp

		ldr	\rp, =APB_PHYS_BASE		@ physical

		ldr	\rv, =APB_VIRT_BASE		@ virtual

		orr	\rp, \rp, #0x00017000

		orr	\rv, \rv, #0x00017000

		orr	\rp, \rp, #MMP_UART_OFFSET

		orr	\rv, \rv, #MMP_UART_OFFSET

		.endm



#define UART_SHIFT	2