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MIPS: Loongson: Cleanups of serial port support

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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>
This commit is contained in:
Wu Zhangjin
2009-11-28 14:21:50 +08:00
committed by Ralf Baechle
parent c47a48d83a
commit c3d8d85019
6 changed files with 51 additions and 26 deletions
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14
arch/mips/include/asm/mach-loongson/loongson.h
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@@ -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);