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| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-03-18 16:41:52 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2016-03-24 01:45:41 +0900 |
| commit | d5cf32977f0068c046687e3ff944c5e637b4bfa0 (patch) | |
| tree | 8eaba9e42364abc83cfbbc3ffeed891a4efa0c69 /drivers | |
| parent | 650aedbfc03e2f594ca0a8000b357dc6412710aa (diff) | |
ARM: uniphier: support Debug UART
For ARM32 architecture, CONFIG_DEBUG_LL is available for early
low-level debugging (and actually UniPhier 32bit SoCs use it), but
ARM64 architecture does not support it. Instead, CONFIG_DEBUG_UART
is available as an architecture-independent debug facility.
This commit supports it on all the UniPhier SoCs (including the new
ARMv8 SoCs), which is very useful for new SoC bringups.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/serial/Kconfig | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig index 92d4212123..2a770a12ca 100644 --- a/drivers/serial/Kconfig +++ b/drivers/serial/Kconfig @@ -169,6 +169,15 @@ config DEBUG_UART_PIC32 will need to provide parameters to make this work. The driver will be available until the real driver model serial is running. +config DEBUG_UART_UNIPHIER + bool "UniPhier on-chip UART" + depends on ARCH_UNIPHIER + help + Select this to enable a debug UART using the UniPhier on-chip UART. + You will need to provide DEBUG_UART_BASE to make this work. The + driver will be available until the real driver-model serial is + running. + endchoice config DEBUG_UART_BASE |