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Diffstat (limited to 'kernel/arch/mips/loongson/common/early_printk.c')
-rw-r--r--kernel/arch/mips/loongson/common/early_printk.c41
1 files changed, 0 insertions, 41 deletions
diff --git a/kernel/arch/mips/loongson/common/early_printk.c b/kernel/arch/mips/loongson/common/early_printk.c
deleted file mode 100644
index 6ca632e52..000000000
--- a/kernel/arch/mips/loongson/common/early_printk.c
+++ /dev/null
@@ -1,41 +0,0 @@
-/* early printk support
- *
- * Copyright (c) 2009 Philippe Vachon <philippe@cowpig.ca>
- * Copyright (c) 2009 Lemote Inc.
- * Author: Wu Zhangjin, wuzhangjin@gmail.com
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2 of the License, or (at your
- * option) any later version.
- */
-#include <linux/serial_reg.h>
-
-#include <loongson.h>
-
-#define PORT(base, offset) (u8 *)(base + offset)
-
-static inline unsigned int serial_in(unsigned char *base, int offset)
-{
- return readb(PORT(base, offset));
-}
-
-static inline void serial_out(unsigned char *base, int offset, int value)
-{
- writeb(value, PORT(base, offset));
-}
-
-void prom_putchar(char c)
-{
- int timeout;
- unsigned char *uart_base;
-
- uart_base = (unsigned char *)_loongson_uart_base[0];
- timeout = 1024;
-
- while (((serial_in(uart_base, UART_LSR) & UART_LSR_THRE) == 0) &&
- (timeout-- > 0))
- ;
-
- serial_out(uart_base, UART_TX, c);
-}