| Russell King | a09e64f | 2008-08-05 16:14:15 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * arch/arm/mach-h720x/include/mach/uncompress.h |
| 3 | * |
| 4 | * Copyright (C) 2001-2002 Jungjun Kim |
| 5 | */ |
| 6 | |
| 7 | #ifndef __ASM_ARCH_UNCOMPRESS_H |
| 8 | #define __ASM_ARCH_UNCOMPRESS_H |
| 9 | |
| 10 | #include <mach/hardware.h> |
| 11 | |
| 12 | #define LSR 0x14 |
| 13 | #define TEMPTY 0x40 |
| 14 | |
| 15 | static inline void putc(int c) |
| 16 | { |
| 17 | volatile unsigned char *p = (volatile unsigned char *)(IO_PHYS+0x20000); |
| 18 | |
| 19 | /* wait until transmit buffer is empty */ |
| 20 | while((p[LSR] & TEMPTY) == 0x0) |
| 21 | barrier(); |
| 22 | |
| 23 | /* write next character */ |
| 24 | *p = c; |
| 25 | } |
| 26 | |
| 27 | static inline void flush(void) |
| 28 | { |
| 29 | } |
| 30 | |
| 31 | /* |
| 32 | * nothing to do |
| 33 | */ |
| 34 | #define arch_decomp_setup() |
| 35 | #define arch_decomp_wdog() |
| 36 | |
| 37 | #endif |