/*
* 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 <asm /io.h>
static inline void fd_cacheflush(char * addr, long size)
{
dma_cache_wback_inv((unsigned long )addr, size);
}
#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 > = 16 MB
*
* Went back to the 1 MB 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 0 x1000000 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 */
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(vorverarbeitet am 2026-10-01)
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