diff options
author | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
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committer | Arjan van de Ven <arjan@linux.intel.com> | 2008-10-17 09:20:26 -0700 |
commit | 651dab4264e4ba0e563f5ff56f748127246e9065 (patch) | |
tree | 016630974bdcb00fe529b673f96d389e0fd6dc94 /arch/mips/include/asm/floppy.h | |
parent | 40b8606253552109815786e5d4b0de98782d31f5 (diff) | |
parent | 2e532d68a2b3e2aa6b19731501222069735c741c (diff) |
Merge commit 'linus/master' into merge-linus
Conflicts:
arch/x86/kvm/i8254.c
Diffstat (limited to 'arch/mips/include/asm/floppy.h')
-rw-r--r-- | arch/mips/include/asm/floppy.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/mips/include/asm/floppy.h b/arch/mips/include/asm/floppy.h new file mode 100644 index 00000000000..992d232adc8 --- /dev/null +++ b/arch/mips/include/asm/floppy.h @@ -0,0 +1,56 @@ +/* + * 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 <linux/dma-mapping.h> + +static inline void fd_cacheflush(char * addr, long size) +{ + dma_cache_sync(NULL, addr, size, DMA_BIDIRECTIONAL); +} + +#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 + +/* + * 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 */ |