/* $Id: ide.h,v 1.21 2001/09/25 20:21:48 kanoj Exp $ * ide.h: Ultra/PCI specific IDE glue. * * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) */ #ifndef _SPARC64_IDE_H #define _SPARC64_IDE_H #ifdef __KERNEL__ #include <linux/config.h> #include <asm/pgalloc.h> #include <asm/io.h> #include <asm/spitfire.h> #include <asm/cacheflush.h> #include <asm/page.h> #ifndef MAX_HWIFS # ifdef CONFIG_BLK_DEV_IDEPCI #define MAX_HWIFS 10 # else #define MAX_HWIFS 2 # endif #endif #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 sparc64, 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 unsigned int inw_be(void __iomem *addr) { unsigned int ret; __asm__ __volatile__("lduha [%1] %2, %0" : "=r" (ret) : "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); return ret; } static inline void __ide_insw(void __iomem *port, void *dst, u32 count) { #ifdef DCACHE_ALIASING_POSSIBLE unsigned long end = (unsigned long)dst + (count << 1); #endif u16 *ps = dst; u32 *pi; if(((u64)ps) & 0x2) { *ps++ = inw_be(port); count--; } pi = (u32 *)ps; while(count >= 2) { u32 w; w = inw_be(port) << 16; w |= inw_be(port); *pi++ = w; count -= 2; } ps = (u16 *)pi; if(count) *ps++ = inw_be(port); #ifdef DCACHE_ALIASING_POSSIBLE __flush_dcache_range((unsigned long)dst, end); #endif } static inline void outw_be(unsigned short w, void __iomem *addr) { __asm__ __volatile__("stha %0, [%1] %2" : /* no outputs */ : "r" (w), "r" (addr), "i" (ASI_PHYS_BYPASS_EC_E)); } static inline void __ide_outsw(void __iomem *port, void *src, u32 count) { #ifdef DCACHE_ALIASING_POSSIBLE unsigned long end = (unsigned long)src + (count << 1); #endif const u16 *ps = src; const u32 *pi; if(((u64)src) & 0x2) { outw_be(*ps++, port); count--; } pi = (const u32 *)ps; while(count >= 2) { u32 w; w = *pi++; outw_be((w >> 16), port); outw_be(w, port); count -= 2; } ps = (const u16 *)pi; if(count) outw_be(*ps, port); #ifdef DCACHE_ALIASING_POSSIBLE __flush_dcache_range((unsigned long)src, end); #endif } #endif /* __KERNEL__ */ #endif /* _SPARC64_IDE_H */