blob: 9b28d0940ef4c9c444ae811f3ba55d6aa01ea45b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
/*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
* by the Free Software Foundation.
*
* Copyright (C) 2010 John Crispin <blogic@openwrt.org>
*/
#include <linux/cpu.h>
#include <lantiq_soc.h>
#define ASC_BUF 1024
#define LTQ_ASC_FSTAT ((u32 *)(LTQ_EARLY_ASC + 0x0048))
#ifdef __BIG_ENDIAN
#define LTQ_ASC_TBUF ((u32 *)(LTQ_EARLY_ASC + 0x0020 + 3))
#else
#define LTQ_ASC_TBUF ((u32 *)(LTQ_EARLY_ASC + 0x0020))
#endif
#define TXMASK 0x3F00
#define TXOFFSET 8
void prom_putchar(char c)
{
unsigned long flags;
local_irq_save(flags);
do { } while ((ltq_r32(LTQ_ASC_FSTAT) & TXMASK) >> TXOFFSET);
if (c == '\n')
ltq_w8('\r', LTQ_ASC_TBUF);
ltq_w8(c, LTQ_ASC_TBUF);
local_irq_restore(flags);
}
|
