/* * 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 whereever 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 */