diff options
Diffstat (limited to 'arch/mips/loongson/common/early_printk.c')
| -rw-r--r-- | arch/mips/loongson/common/early_printk.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/mips/loongson/common/early_printk.c b/arch/mips/loongson/common/early_printk.c index 8ec4fb2066a..23e7a8f8897 100644 --- a/arch/mips/loongson/common/early_printk.c +++ b/arch/mips/loongson/common/early_printk.c @@ -12,7 +12,6 @@ #include <linux/serial_reg.h> #include <loongson.h> -#include <machine.h> #define PORT(base, offset) (u8 *)(base + offset) @@ -28,10 +27,14 @@ static inline void serial_out(unsigned char *base, int offset, int value) void prom_putchar(char c) { - unsigned char *uart_base = - (unsigned char *) ioremap_nocache(LOONGSON_UART_BASE, 8); + int timeout; + unsigned char *uart_base; - while ((serial_in(uart_base, UART_LSR) & UART_LSR_THRE) == 0) + uart_base = (unsigned char *)_loongson_uart_base; + timeout = 1024; + + while (((serial_in(uart_base, UART_LSR) & UART_LSR_THRE) == 0) && + (timeout-- > 0)) ; serial_out(uart_base, UART_TX, c); |