1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * arch/arm/mach-footbridge/include/mach/uncompress.h
4 *
5 * Copyright (C) 1996-1999 Russell King
6 */
7 #include <asm/mach-types.h>
8
9 /*
10 * Note! This could cause problems on the NetWinder
11 */
12 #define DC21285_BASE ((volatile unsigned int *)0x42000160)
13 #define SER0_BASE ((volatile unsigned char *)0x7c0003f8)
14
15 static inline void putc(char c)
16 {
17 if (machine_is_netwinder()) {
18 while ((SER0_BASE[5] & 0x60) != 0x60)
19 barrier();
20 SER0_BASE[0] = c;
21 } else {
22 while (DC21285_BASE[6] & 8);
23 DC21285_BASE[0] = c;
24 }
25 }
26
27 static inline void flush(void)
28 {
29 }
30
31 /*
32 * nothing to do
33 */
34 #define arch_decomp_setup()
35
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