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