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authorMasahiro Yamada <yamada.masahiro@socionext.com>2016-03-18 16:41:52 +0900
committerMasahiro Yamada <yamada.masahiro@socionext.com>2016-03-24 01:45:41 +0900
commitd5cf32977f0068c046687e3ff944c5e637b4bfa0 (patch)
tree8eaba9e42364abc83cfbbc3ffeed891a4efa0c69 /drivers/serial
parent650aedbfc03e2f594ca0a8000b357dc6412710aa (diff)
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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/serial')
-rw-r--r--drivers/serial/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 92d4212..2a770a1 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