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authorWu Zhangjin <wuzhangjin@gmail.com>2009-11-28 14:21:50 +0800
committerRalf Baechle <ralf@linux-mips.org>2009-12-17 01:57:34 +0000
commitc3d8d85019c9e4f6e4f23d194b6432a2c2464372 (patch)
tree644e1cf5e7f215fa6789d96bce9fac7e14666846 /arch/mips/include/asm
parentc47a48d83a7a82c86ff3e74bdcabeee8f6e6b730 (diff)
downloadlinux-2.6.34-ux500-c3d8d85019c9e4f6e4f23d194b6432a2c2464372.tar.gz
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>
Diffstat (limited to 'arch/mips/include/asm')
-rw-r--r--arch/mips/include/asm/mach-loongson/loongson.h14
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/mips/include/asm/mach-loongson/loongson.h b/arch/mips/include/asm/mach-loongson/loongson.h
index 06c28f38711..ee8bc837697 100644
--- a/arch/mips/include/asm/mach-loongson/loongson.h
+++ b/arch/mips/include/asm/mach-loongson/loongson.h
@@ -31,9 +31,17 @@ extern void __init prom_init_memory(void);
extern void __init prom_init_cmdline(void);
extern void __init prom_init_machtype(void);
extern void __init prom_init_env(void);
-extern unsigned long _loongson_uart_base;
-extern unsigned long uart8250_base[];
-extern void prom_init_uart_base(void);
+#ifdef CONFIG_LOONGSON_UART_BASE
+extern unsigned long _loongson_uart_base, loongson_uart_base;
+extern void prom_init_loongson_uart_base(void);
+#endif
+
+static inline void prom_init_uart_base(void)
+{
+#ifdef CONFIG_LOONGSON_UART_BASE
+ prom_init_loongson_uart_base();
+#endif
+}
/* irq operation functions */
extern void bonito_irqdispatch(void);