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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: Haojian Zhuang <haojian.zhuang@gmail.com>
This commit is contained in:
Haojian Zhuang 2012-08-10 23:49:41 +08:00
parent 0d7614f09c
commit fa4cd2a880
2 changed files with 24 additions and 2 deletions
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14
arch/arm/Kconfig.debug
View File

@ -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

12
arch/arm/mach-mmp/include/mach/debug-macro.S
View File

@ -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