mirror of
https://github.com/smaeul/u-boot.git
synced 2025-10-31 20:18:18 +00:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
/*
|
|
* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
|
|
* Scott McNutt <smcnutt@psyent.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#ifndef __ASM_NIOS2_IO_H_
|
|
#define __ASM_NIOS2_IO_H_
|
|
|
|
static inline void sync(void)
|
|
{
|
|
__asm__ __volatile__ ("sync" : : : "memory");
|
|
}
|
|
|
|
/*
|
|
* 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);
|
|
}
|
|
|
|
extern unsigned char inb (unsigned char *port);
|
|
extern unsigned short inw (unsigned short *port);
|
|
extern unsigned inl (unsigned port);
|
|
|
|
#define __raw_writeb(v,a) (*(volatile unsigned char *)(a) = (v))
|
|
#define __raw_writew(v,a) (*(volatile unsigned short *)(a) = (v))
|
|
#define __raw_writel(v,a) (*(volatile unsigned int *)(a) = (v))
|
|
|
|
#define __raw_readb(a) (*(volatile unsigned char *)(a))
|
|
#define __raw_readw(a) (*(volatile unsigned short *)(a))
|
|
#define __raw_readl(a) (*(volatile unsigned int *)(a))
|
|
|
|
#define readb(addr)\
|
|
({unsigned char val;\
|
|
asm volatile( "ldbio %0, 0(%1)" :"=r"(val) : "r" (addr)); val;})
|
|
#define readw(addr)\
|
|
({unsigned short val;\
|
|
asm volatile( "ldhio %0, 0(%1)" :"=r"(val) : "r" (addr)); val;})
|
|
#define readl(addr)\
|
|
({unsigned long val;\
|
|
asm volatile( "ldwio %0, 0(%1)" :"=r"(val) : "r" (addr)); val;})
|
|
|
|
#define writeb(val,addr)\
|
|
asm volatile ("stbio %0, 0(%1)" : : "r" (val), "r" (addr))
|
|
#define writew(val,addr)\
|
|
asm volatile ("sthio %0, 0(%1)" : : "r" (val), "r" (addr))
|
|
#define writel(val,addr)\
|
|
asm volatile ("stwio %0, 0(%1)" : : "r" (val), "r" (addr))
|
|
|
|
#define inb(addr) readb(addr)
|
|
#define inw(addr) readw(addr)
|
|
#define inl(addr) readl(addr)
|
|
#define outb(val, addr) writeb(val,addr)
|
|
#define outw(val, addr) writew(val,addr)
|
|
#define outl(val, addr) writel(val,addr)
|
|
|
|
static inline void insb (unsigned long port, void *dst, unsigned long count)
|
|
{
|
|
unsigned char *p = dst;
|
|
while (count--) *p++ = inb (port);
|
|
}
|
|
static inline void insw (unsigned long port, void *dst, unsigned long count)
|
|
{
|
|
unsigned short *p = dst;
|
|
while (count--) *p++ = inw (port);
|
|
}
|
|
static inline void insl (unsigned long port, void *dst, unsigned long count)
|
|
{
|
|
unsigned long *p = dst;
|
|
while (count--) *p++ = inl (port);
|
|
}
|
|
|
|
static inline void outsb (unsigned long port, const void *src, unsigned long count)
|
|
{
|
|
const unsigned char *p = src;
|
|
while (count--) outb (*p++, port);
|
|
}
|
|
|
|
static inline void outsw (unsigned long port, const void *src, unsigned long count)
|
|
{
|
|
const unsigned short *p = src;
|
|
while (count--) outw (*p++, port);
|
|
}
|
|
static inline void outsl (unsigned long port, const void *src, unsigned long count)
|
|
{
|
|
const unsigned long *p = src;
|
|
while (count--) outl (*p++, port);
|
|
}
|
|
|
|
#endif /* __ASM_NIOS2_IO_H_ */
|