MIPS: Loongson: Cleanups of serial port support

This patchs uses a loongson_uart_base variable instead of the
uart_base[] array and adds a new kernel option to avoid to compile
uart_base.c all the time, which will save a little bit of memory for us.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
http://patchwork.linux-mips.org/patch/727/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/mips/loongson/Kconfig b/arch/mips/loongson/Kconfig
index 7a86987b478f..3df1967dea08 100644
--- a/arch/mips/loongson/Kconfig
+++ b/arch/mips/loongson/Kconfig
@@ -78,3 +78,8 @@ config LOONGSON_SUSPEND
         bool
         default y
         depends on CPU_SUPPORTS_CPUFREQ && SUSPEND
+
+config LOONGSON_UART_BASE
+        bool
+        default y
+        depends on EARLY_PRINTK || SERIAL_8250