/* $Id: ide.h,v 1.7 2002/01/16 20:58:40 davem Exp $ * ide.h: SPARC PCI specific IDE glue. * * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) * Adaptation from sparc64 version to sparc by Pete Zaitcev. */ #ifndef _SPARC_IDE_H #define _SPARC_IDE_H #ifdef __KERNEL__ #include <asm/pgtable.h> #include <asm/io.h> #include <asm/psr.h> #undef MAX_HWIFS #define MAX_HWIFS 2 #define IDE_ARCH_OBSOLETE_INIT #define ide_default_io_ctl(base) ((base) + 0x206) /* obsolete */ #define __ide_insl(data_reg, buffer, wcount) \ __ide_insw(data_reg, buffer, (wcount)<<1) #define __ide_outsl(data_reg, buffer, wcount) \ __ide_outsw(data_reg, buffer, (wcount)<<1) /* On sparc, I/O ports and MMIO registers are accessed identically. */ #define __ide_mm_insw __ide_insw #define __ide_mm_insl __ide_insl #define __ide_mm_outsw __ide_outsw #define __ide_mm_outsl __ide_outsl static __inline__ void __ide_insw(unsigned long port, void *dst, unsigned long count) { volatile unsigned short *data_port; /* unsigned long end = (unsigned long)dst + (count << 1); */ /* P3 */ u16 *ps = dst; u32 *pi; data_port = (volatile unsigned short *)port; if(((unsigned long)ps) & 0x2) { *ps++ = *data_port; count--; } pi = (u32 *)ps; while(count >= 2) { u32 w; w = (*data_port) << 16; w |= (*data_port); *pi++ = w; count -= 2; } ps = (u16 *)pi; if(count) *ps++ = *data_port; /* __flush_dcache_range((unsigned long)dst, end); */ /* P3 see hme */ } static __inline__ void __ide_outsw(unsigned long port, const void *src, unsigned long count) { volatile unsigned short *data_port; /* unsigned long end = (unsigned long)src + (count << 1); */ const u16 *ps = src; const u32 *pi; data_port = (volatile unsigned short *)port; if(((unsigned long)src) & 0x2) { *data_port = *ps++; count--; } pi = (const u32 *)ps; while(count >= 2) { u32 w; w = *pi++; *data_port = (w >> 16); *data_port = w; count -= 2; } ps = (const u16 *)pi; if(count) *data_port = *ps; /* __flush_dcache_range((unsigned long)src, end); */ /* P3 see hme */ } #endif /* __KERNEL__ */ #endif /* _SPARC_IDE_H */