1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Architecture specific parts of the Floppy driver 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * This file is subject to the terms and conditions of the GNU General Public 5*4882a593Smuzhiyun * License. See the file "COPYING" in the main directory of this archive 6*4882a593Smuzhiyun * for more details. 7*4882a593Smuzhiyun * 8*4882a593Smuzhiyun * Copyright (C) 1995 - 2000 Ralf Baechle 9*4882a593Smuzhiyun */ 10*4882a593Smuzhiyun #ifndef _ASM_FLOPPY_H 11*4882a593Smuzhiyun #define _ASM_FLOPPY_H 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include <asm/io.h> 14*4882a593Smuzhiyun fd_cacheflush(char * addr,long size)15*4882a593Smuzhiyunstatic inline void fd_cacheflush(char * addr, long size) 16*4882a593Smuzhiyun { 17*4882a593Smuzhiyun dma_cache_wback_inv((unsigned long)addr, size); 18*4882a593Smuzhiyun } 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun #define MAX_BUFFER_SECTORS 24 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun /* 24*4882a593Smuzhiyun * And on Mips's the CMOS info fails also ... 25*4882a593Smuzhiyun * 26*4882a593Smuzhiyun * FIXME: This information should come from the ARC configuration tree 27*4882a593Smuzhiyun * or wherever a particular machine has stored this ... 28*4882a593Smuzhiyun */ 29*4882a593Smuzhiyun #define FLOPPY0_TYPE fd_drive_type(0) 30*4882a593Smuzhiyun #define FLOPPY1_TYPE fd_drive_type(1) 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun #define FDC1 fd_getfdaddr1() 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun #define N_FDC 1 /* do you *really* want a second controller? */ 35*4882a593Smuzhiyun #define N_DRIVE 8 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun /* 38*4882a593Smuzhiyun * The DMA channel used by the floppy controller cannot access data at 39*4882a593Smuzhiyun * addresses >= 16MB 40*4882a593Smuzhiyun * 41*4882a593Smuzhiyun * Went back to the 1MB limit, as some people had problems with the floppy 42*4882a593Smuzhiyun * driver otherwise. It doesn't matter much for performance anyway, as most 43*4882a593Smuzhiyun * floppy accesses go through the track buffer. 44*4882a593Smuzhiyun * 45*4882a593Smuzhiyun * On MIPSes using vdma, this actually means that *all* transfers go thru 46*4882a593Smuzhiyun * the * track buffer since 0x1000000 is always smaller than KSEG0/1. 47*4882a593Smuzhiyun * Actually this needs to be a bit more complicated since the so much different 48*4882a593Smuzhiyun * hardware available with MIPS CPUs ... 49*4882a593Smuzhiyun */ 50*4882a593Smuzhiyun #define CROSS_64KB(a, s) ((unsigned long)(a)/K_64 != ((unsigned long)(a) + (s) - 1) / K_64) 51*4882a593Smuzhiyun 52*4882a593Smuzhiyun #define EXTRA_FLOPPY_PARAMS 53*4882a593Smuzhiyun 54*4882a593Smuzhiyun #include <floppy.h> 55*4882a593Smuzhiyun 56*4882a593Smuzhiyun #endif /* _ASM_FLOPPY_H */ 57