xref: /OK3568_Linux_fs/kernel/arch/arm/mach-footbridge/include/mach/uncompress.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  *  arch/arm/mach-footbridge/include/mach/uncompress.h
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  *  Copyright (C) 1996-1999 Russell King
6*4882a593Smuzhiyun  */
7*4882a593Smuzhiyun #include <asm/mach-types.h>
8*4882a593Smuzhiyun 
9*4882a593Smuzhiyun /*
10*4882a593Smuzhiyun  * Note! This could cause problems on the NetWinder
11*4882a593Smuzhiyun  */
12*4882a593Smuzhiyun #define DC21285_BASE ((volatile unsigned int *)0x42000160)
13*4882a593Smuzhiyun #define SER0_BASE    ((volatile unsigned char *)0x7c0003f8)
14*4882a593Smuzhiyun 
putc(char c)15*4882a593Smuzhiyun static inline void putc(char c)
16*4882a593Smuzhiyun {
17*4882a593Smuzhiyun 	if (machine_is_netwinder()) {
18*4882a593Smuzhiyun 		while ((SER0_BASE[5] & 0x60) != 0x60)
19*4882a593Smuzhiyun 			barrier();
20*4882a593Smuzhiyun 		SER0_BASE[0] = c;
21*4882a593Smuzhiyun 	} else {
22*4882a593Smuzhiyun 		while (DC21285_BASE[6] & 8);
23*4882a593Smuzhiyun 		DC21285_BASE[0] = c;
24*4882a593Smuzhiyun 	}
25*4882a593Smuzhiyun }
26*4882a593Smuzhiyun 
flush(void)27*4882a593Smuzhiyun static inline void flush(void)
28*4882a593Smuzhiyun {
29*4882a593Smuzhiyun }
30*4882a593Smuzhiyun 
31*4882a593Smuzhiyun /*
32*4882a593Smuzhiyun  * nothing to do
33*4882a593Smuzhiyun  */
34*4882a593Smuzhiyun #define arch_decomp_setup()
35