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