1384740dcSRalf Baechle /* 2384740dcSRalf Baechle * Architecture specific parts of the Floppy driver 3384740dcSRalf Baechle * 4384740dcSRalf Baechle * This file is subject to the terms and conditions of the GNU General Public 5384740dcSRalf Baechle * License. See the file "COPYING" in the main directory of this archive 6384740dcSRalf Baechle * for more details. 7384740dcSRalf Baechle * 8384740dcSRalf Baechle * Copyright (C) 1995 - 2000 Ralf Baechle 9384740dcSRalf Baechle */ 10384740dcSRalf Baechle #ifndef _ASM_FLOPPY_H 11384740dcSRalf Baechle #define _ASM_FLOPPY_H 12384740dcSRalf Baechle 131dd71588SChristoph Hellwig #include <asm/io.h> 14384740dcSRalf Baechle fd_cacheflush(char * addr,long size)15384740dcSRalf Baechlestatic inline void fd_cacheflush(char * addr, long size) 16384740dcSRalf Baechle { 171dd71588SChristoph Hellwig dma_cache_wback_inv((unsigned long)addr, size); 18384740dcSRalf Baechle } 19384740dcSRalf Baechle 20384740dcSRalf Baechle #define MAX_BUFFER_SECTORS 24 21384740dcSRalf Baechle 22384740dcSRalf Baechle 23384740dcSRalf Baechle /* 24384740dcSRalf Baechle * And on Mips's the CMOS info fails also ... 25384740dcSRalf Baechle * 26384740dcSRalf Baechle * FIXME: This information should come from the ARC configuration tree 2725985edcSLucas De Marchi * or wherever a particular machine has stored this ... 28384740dcSRalf Baechle */ 29384740dcSRalf Baechle #define FLOPPY0_TYPE fd_drive_type(0) 30384740dcSRalf Baechle #define FLOPPY1_TYPE fd_drive_type(1) 31384740dcSRalf Baechle 32497888cfSPhil Carmody #define FDC1 fd_getfdaddr1() 33384740dcSRalf Baechle 34384740dcSRalf Baechle #define N_FDC 1 /* do you *really* want a second controller? */ 35384740dcSRalf Baechle #define N_DRIVE 8 36384740dcSRalf Baechle 37384740dcSRalf Baechle /* 38384740dcSRalf Baechle * The DMA channel used by the floppy controller cannot access data at 39384740dcSRalf Baechle * addresses >= 16MB 40384740dcSRalf Baechle * 41384740dcSRalf Baechle * Went back to the 1MB limit, as some people had problems with the floppy 42384740dcSRalf Baechle * driver otherwise. It doesn't matter much for performance anyway, as most 43384740dcSRalf Baechle * floppy accesses go through the track buffer. 44384740dcSRalf Baechle * 45384740dcSRalf Baechle * On MIPSes using vdma, this actually means that *all* transfers go thru 46384740dcSRalf Baechle * the * track buffer since 0x1000000 is always smaller than KSEG0/1. 47384740dcSRalf Baechle * Actually this needs to be a bit more complicated since the so much different 48384740dcSRalf Baechle * hardware available with MIPS CPUs ... 49384740dcSRalf Baechle */ 50384740dcSRalf Baechle #define CROSS_64KB(a, s) ((unsigned long)(a)/K_64 != ((unsigned long)(a) + (s) - 1) / K_64) 51384740dcSRalf Baechle 52384740dcSRalf Baechle #define EXTRA_FLOPPY_PARAMS 53384740dcSRalf Baechle 54384740dcSRalf Baechle #include <floppy.h> 55384740dcSRalf Baechle 56384740dcSRalf Baechle #endif /* _ASM_FLOPPY_H */ 57