| /* | |
| * Architecture specific parts of the Floppy driver | |
| * | |
| * This file is subject to the terms and conditions of the GNU General Public | |
| * License. See the file "COPYING" in the main directory of this archive | |
| * for more details. | |
| * | |
| * Copyright (C) 1995 - 2000 Ralf Baechle | |
| */ | |
| #ifndef _ASM_FLOPPY_H | |
| #define _ASM_FLOPPY_H | |
| #include <linux/dma-mapping.h> | |
| static inline void fd_cacheflush(char * addr, long size) | |
| { | |
| dma_cache_sync(NULL, addr, size, DMA_BIDIRECTIONAL); | |
| } | |
| #define MAX_BUFFER_SECTORS 24 | |
| /* | |
| * And on Mips's the CMOS info fails also ... | |
| * | |
| * FIXME: This information should come from the ARC configuration tree | |
| * or wherever a particular machine has stored this ... | |
| */ | |
| #define FLOPPY0_TYPE fd_drive_type(0) | |
| #define FLOPPY1_TYPE fd_drive_type(1) | |
| #define FDC1 fd_getfdaddr1() | |
| #define N_FDC 1 /* do you *really* want a second controller? */ | |
| #define N_DRIVE 8 | |
| /* | |
| * The DMA channel used by the floppy controller cannot access data at | |
| * addresses >= 16MB | |
| * | |
| * Went back to the 1MB limit, as some people had problems with the floppy | |
| * driver otherwise. It doesn't matter much for performance anyway, as most | |
| * floppy accesses go through the track buffer. | |
| * | |
| * On MIPSes using vdma, this actually means that *all* transfers go thru | |
| * the * track buffer since 0x1000000 is always smaller than KSEG0/1. | |
| * Actually this needs to be a bit more complicated since the so much different | |
| * hardware available with MIPS CPUs ... | |
| */ | |
| #define CROSS_64KB(a, s) ((unsigned long)(a)/K_64 != ((unsigned long)(a) + (s) - 1) / K_64) | |
| #define EXTRA_FLOPPY_PARAMS | |
| #include <floppy.h> | |
| #endif /* _ASM_FLOPPY_H */ |