[mirror_ubuntu-zesty-kernel.git] / include / asm-mips / floppy.h

/*
 * 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

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 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

#define FLOPPY_MOTOR_MASK 0xf0

/*
 * 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 */
Commit	Line	Data
1da177e4 LT	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
	13	static 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	/*
	22	* And on Mips's the CMOS info fails also ...
	23	*
	24	* FIXME: This information should come from the ARC configuration tree
	25	* or whereever a particular machine has stored this ...
	26	*/
	27	#define FLOPPY0_TYPE fd_drive_type(0)
	28	#define FLOPPY1_TYPE fd_drive_type(1)
	29
	30	#define FDC1 fd_getfdaddr1();
	31
	32	#define N_FDC 1 /* do you really want a second controller? */
	33	#define N_DRIVE 8
	34
	35	#define FLOPPY_MOTOR_MASK 0xf0
	36
	37	/*
	38	* The DMA channel used by the floppy controller cannot access data at
	39	* addresses >= 16MB
	40	*
	41	* Went back to the 1MB limit, as some people had problems with the floppy
	42	* driver otherwise. It doesn't matter much for performance anyway, as most
	43	* floppy accesses go through the track buffer.
	44	*
	45	* On MIPSes using vdma, this actually means that all transfers go thru
	46	* the * track buffer since 0x1000000 is always smaller than KSEG0/1.
	47	* Actually this needs to be a bit more complicated since the so much different
	48	* hardware available with MIPS CPUs ...
	49	*/
	50	#define CROSS_64KB(a,s) ((unsigned long)(a)/K_64 != ((unsigned long)(a) + (s) - 1) / K_64)
	51
	52	#define EXTRA_FLOPPY_PARAMS
	53
	54	#include <floppy.h>
	55
	56	#endif /* _ASM_FLOPPY_H */