1/* 2 * Architecture specific parts of the Floppy driver 3 * 4 * This file is subject to the terms and conditions of the GNU General Public 5 * License. See the file "COPYING" in the main directory of this archive 6 * for more details. 7 * 8 * Copyright (C) 1995 - 2000 Ralf Baechle 9 */ 10#ifndef _ASM_FLOPPY_H 11#define _ASM_FLOPPY_H 12 13static inline void fd_cacheflush(char * addr, long size) 14{ 15 dma_cache_wback_inv((unsigned long)addr,size); 16} 17 18#define MAX_BUFFER_SECTORS 24 19 20 21#define FLOPPY0_TYPE fd_drive_type(0) 22#define FLOPPY1_TYPE fd_drive_type(1) 23 24#define FDC1 fd_getfdaddr1(); 25 26#define N_FDC 1 /* do you *really* want a second controller? */ 27#define N_DRIVE 8 28 29#define FLOPPY_MOTOR_MASK 0xf0 30 31/* 32 * The DMA channel used by the floppy controller cannot access data at 33 * addresses >= 16MB 34 * 35 * Went back to the 1MB limit, as some people had problems with the floppy 36 * driver otherwise. It doesn't matter much for performance anyway, as most 37 * floppy accesses go through the track buffer. 38 * 39 * On MIPSes using vdma, this actually means that *all* transfers go thru 40 * the * track buffer since 0x1000000 is always smaller than KSEG0/1. 41 * Actually this needs to be a bit more complicated since the so much different 42 * hardware available with MIPS CPUs ... 43 */ 44#define CROSS_64KB(a,s) ((unsigned long)(a)/K_64 != ((unsigned long)(a) + (s) - 1) / K_64) 45 46#define EXTRA_FLOPPY_PARAMS 47 48#include <floppy.h> 49 50#endif /* _ASM_FLOPPY_H */ 51