#include <linux/types.h>
#include <asm/byteorder.h>
#include <asm/memory.h>
+#include <asm/barriers.h>
#if 0 /* XXX###XXX */
#include <asm/arch/hardware.h>
#endif /* XXX###XXX */
{
}
-/*
- * Given a physical address and a length, return a virtual address
- * that can be used to access the memory range with the caching
- * properties specified by "flags".
- */
-#define MAP_NOCACHE (0)
-#define MAP_WRCOMBINE (0)
-#define MAP_WRBACK (0)
-#define MAP_WRTHROUGH (0)
-
-static inline void *
-map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags)
-{
- return (void *)paddr;
-}
-
-/*
- * Take down a mapping set up by map_physmem().
- */
-static inline void unmap_physmem(void *vaddr, unsigned long flags)
-{
-
-}
-
-static inline phys_addr_t virt_to_phys(void * vaddr)
-{
- return (phys_addr_t)(vaddr);
-}
-
/*
* Generic virtual read/write. Note that we don't support half-word
* read/writes. We define __arch_*[bl] here, and leave __arch_*w
#define __arch_getb(a) (*(volatile unsigned char *)(a))
#define __arch_getw(a) (*(volatile unsigned short *)(a))
#define __arch_getl(a) (*(volatile unsigned int *)(a))
+#define __arch_getq(a) (*(volatile unsigned long long *)(a))
#define __arch_putb(v,a) (*(volatile unsigned char *)(a) = (v))
#define __arch_putw(v,a) (*(volatile unsigned short *)(a) = (v))
#define __arch_putl(v,a) (*(volatile unsigned int *)(a) = (v))
+#define __arch_putq(v,a) (*(volatile unsigned long long *)(a) = (v))
-extern inline void __raw_writesb(unsigned long addr, const void *data,
+static inline void __raw_writesb(unsigned long addr, const void *data,
int bytelen)
{
uint8_t *buf = (uint8_t *)data;
__arch_putb(*buf++, addr);
}
-extern inline void __raw_writesw(unsigned long addr, const void *data,
+static inline void __raw_writesw(unsigned long addr, const void *data,
int wordlen)
{
uint16_t *buf = (uint16_t *)data;
__arch_putw(*buf++, addr);
}
-extern inline void __raw_writesl(unsigned long addr, const void *data,
+static inline void __raw_writesl(unsigned long addr, const void *data,
int longlen)
{
uint32_t *buf = (uint32_t *)data;
__arch_putl(*buf++, addr);
}
-extern inline void __raw_readsb(unsigned long addr, void *data, int bytelen)
+static inline void __raw_readsb(unsigned long addr, void *data, int bytelen)
{
uint8_t *buf = (uint8_t *)data;
while(bytelen--)
*buf++ = __arch_getb(addr);
}
-extern inline void __raw_readsw(unsigned long addr, void *data, int wordlen)
+static inline void __raw_readsw(unsigned long addr, void *data, int wordlen)
{
uint16_t *buf = (uint16_t *)data;
while(wordlen--)
*buf++ = __arch_getw(addr);
}
-extern inline void __raw_readsl(unsigned long addr, void *data, int longlen)
+static inline void __raw_readsl(unsigned long addr, void *data, int longlen)
{
uint32_t *buf = (uint32_t *)data;
while(longlen--)
#define __raw_writeb(v,a) __arch_putb(v,a)
#define __raw_writew(v,a) __arch_putw(v,a)
#define __raw_writel(v,a) __arch_putl(v,a)
+#define __raw_writeq(v,a) __arch_putq(v,a)
#define __raw_readb(a) __arch_getb(a)
#define __raw_readw(a) __arch_getw(a)
#define __raw_readl(a) __arch_getl(a)
+#define __raw_readq(a) __arch_getq(a)
/*
* TODO: The kernel offers some more advanced versions of barriers, it might
* have some advantages to use them instead of the simple one here.
*/
-#define dmb() __asm__ __volatile__ ("" : : : "memory")
+#define mb() dsb()
#define __iormb() dmb()
#define __iowmb() dmb()
#define writeb(v,c) ({ u8 __v = v; __iowmb(); __arch_putb(__v,c); __v; })
#define writew(v,c) ({ u16 __v = v; __iowmb(); __arch_putw(__v,c); __v; })
#define writel(v,c) ({ u32 __v = v; __iowmb(); __arch_putl(__v,c); __v; })
+#define writeq(v,c) ({ u64 __v = v; __iowmb(); __arch_putq(__v,c); __v; })
#define readb(c) ({ u8 __v = __arch_getb(c); __iormb(); __v; })
#define readw(c) ({ u16 __v = __arch_getw(c); __iormb(); __v; })
#define readl(c) ({ u32 __v = __arch_getl(c); __iormb(); __v; })
+#define readq(c) ({ u64 __v = __arch_getq(c); __iormb(); __v; })
/*
* The compiler seems to be incapable of optimising constants
#define out_arch(type,endian,a,v) __raw_write##type(cpu_to_##endian(v),a)
#define in_arch(type,endian,a) endian##_to_cpu(__raw_read##type(a))
+#define out_le64(a,v) out_arch(q,le64,a,v)
#define out_le32(a,v) out_arch(l,le32,a,v)
#define out_le16(a,v) out_arch(w,le16,a,v)
+#define in_le64(a) in_arch(q,le64,a)
#define in_le32(a) in_arch(l,le32,a)
#define in_le16(a) in_arch(w,le16,a)
#define insw_p(port,to,len) insw(port,to,len)
#define insl_p(port,to,len) insl(port,to,len)
-/*
- * ioremap and friends.
- *
- * ioremap takes a PCI memory address, as specified in
- * linux/Documentation/IO-mapping.txt. If you want a
- * physical address, use __ioremap instead.
- */
-extern void * __ioremap(unsigned long offset, size_t size, unsigned long flags);
-extern void __iounmap(void *addr);
-
-/*
- * Generic ioremap support.
- *
- * Define:
- * iomem_valid_addr(off,size)
- * iomem_to_phys(off)
- */
-#ifdef iomem_valid_addr
-#define __arch_ioremap(off,sz,nocache) \
- ({ \
- unsigned long _off = (off), _size = (sz); \
- void *_ret = (void *)0; \
- if (iomem_valid_addr(_off, _size)) \
- _ret = __ioremap(iomem_to_phys(_off),_size,nocache); \
- _ret; \
- })
-
-#define __arch_iounmap __iounmap
-#endif
-
-#define ioremap(off,sz) __arch_ioremap((off),(sz),0)
-#define ioremap_nocache(off,sz) __arch_ioremap((off),(sz),1)
-#define iounmap(_addr) __arch_iounmap(_addr)
+#define writesl(a, d, s) __raw_writesl((unsigned long)a, d, s)
+#define readsl(a, d, s) __raw_readsl((unsigned long)a, d, s)
+#define writesw(a, d, s) __raw_writesw((unsigned long)a, d, s)
+#define readsw(a, d, s) __raw_readsw((unsigned long)a, d, s)
+#define writesb(a, d, s) __raw_writesb((unsigned long)a, d, s)
+#define readsb(a, d, s) __raw_readsb((unsigned long)a, d, s)
/*
* DMA-consistent mapping functions. These allocate/free a region of
return retval;
}
-#elif !defined(readb)
+#else
+#define memset_io(a, b, c) memset((void *)(a), (b), (c))
+#define memcpy_fromio(a, b, c) memcpy((a), (void *)(b), (c))
+#define memcpy_toio(a, b, c) memcpy((void *)(a), (b), (c))
+
+#if !defined(readb)
#define readb(addr) (__readwrite_bug("readb"),0)
#define readw(addr) (__readwrite_bug("readw"),0)
#define check_signature(io,sig,len) (0)
+#endif
#endif /* __mem_pci */
/*
#endif /* __mem_isa */
#endif /* __KERNEL__ */
+
+#include <asm-generic/io.h>
+#include <iotrace.h>
+
#endif /* __ASM_ARM_IO_H */
projects / oweals / u-boot.git / blobdiff