aboutsummaryrefslogtreecommitdiff
path: root/arch/mips/au1000/common/puts.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/au1000/common/puts.c')
-rw-r--r--arch/mips/au1000/common/puts.c35
1 files changed, 17 insertions, 18 deletions
diff --git a/arch/mips/au1000/common/puts.c b/arch/mips/au1000/common/puts.c
index e34c67e8929..55bbe24d45b 100644
--- a/arch/mips/au1000/common/puts.c
+++ b/arch/mips/au1000/common/puts.c
@@ -1,11 +1,10 @@
/*
*
* BRIEF MODULE DESCRIPTION
- * Low level uart routines to directly access a 16550 uart.
+ * Low level UART routines to directly access Alchemy UART.
*
- * Copyright 2001 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * ppopov@mvista.com or source@mvista.com
+ * Copyright 2001, 2008 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc. <source@mvista.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
@@ -40,12 +39,12 @@
static volatile unsigned long * const com1 = (unsigned long *)SERIAL_BASE;
-
#ifdef SLOW_DOWN
static inline void slow_down(void)
{
- int k;
- for (k=0; k<10000; k++);
+ int k;
+
+ for (k = 0; k < 10000; k++);
}
#else
#define slow_down()
@@ -54,16 +53,16 @@ static inline void slow_down(void)
void
prom_putchar(const unsigned char c)
{
- unsigned char ch;
- int i = 0;
+ unsigned char ch;
+ int i = 0;
+
+ do {
+ ch = com1[SER_CMD];
+ slow_down();
+ i++;
+ if (i > TIMEOUT)
+ break;
+ } while (0 == (ch & TX_BUSY));
- do {
- ch = com1[SER_CMD];
- slow_down();
- i++;
- if (i>TIMEOUT) {
- break;
- }
- } while (0 == (ch & TX_BUSY));
- com1[SER_DATA] = c;
+ com1[SER_DATA] = c;
}