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| author | Haojian Zhuang <haojian.zhuang@gmail.com> | 2012-08-10 23:49:41 +0800 |
|---|---|---|
| committer | Haojian Zhuang <haojian.zhuang@gmail.com> | 2012-08-16 16:45:45 +0800 |
| commit | fa4cd2a880f842ebbeeafc58e107a85e3c1913ce (patch) | |
| tree | 38316d311ee9e0bca39db1c40276e7b0b26240af /arch/arm | |
| parent | 0d7614f09c1ebdbaa1599a5aba7593f147bf96ee (diff) | |
| download | linux-fa4cd2a880f842ebbeeafc58e107a85e3c1913ce.tar.gz linux-fa4cd2a880f842ebbeeafc58e107a85e3c1913ce.tar.bz2 linux-fa4cd2a880f842ebbeeafc58e107a85e3c1913ce.zip | |
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>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/Kconfig.debug | 14 | ||||
| -rw-r--r-- | arch/arm/mach-mmp/include/mach/debug-macro.S | 12 |
2 files changed, 24 insertions, 2 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index f15f82bf3a50..0919191b8aa5 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -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 diff --git a/arch/arm/mach-mmp/include/mach/debug-macro.S b/arch/arm/mach-mmp/include/mach/debug-macro.S index b6f14d203c25..5c3cc29688ab 100644 --- a/arch/arm/mach-mmp/include/mach/debug-macro.S +++ b/arch/arm/mach-mmp/include/mach/debug-macro.S @@ -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 |