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https://github.com/brain-hackers/u-boot-brain
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3a197b2fe4
Some CPUs like PPC, BLACKFIN need sync() to ensure cfi flash write command is fully finished. The sync() is defined in each CPU's io.h file. For those CPUs which do not need sync for now, a dummy sync() is defined in their io.h as well. Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/*
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* (C) Copyright 2004, Psyent Corporation <www.psyent.com>
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* Scott McNutt <smcnutt@psyent.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef __ASM_NIOS2_IO_H_
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#define __ASM_NIOS2_IO_H_
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static inline void sync(void)
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{
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__asm__ __volatile__ ("sync" : : : "memory");
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}
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extern unsigned char inb (unsigned char *port);
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extern unsigned short inw (unsigned short *port);
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extern unsigned inl (unsigned port);
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#define readb(addr)\
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({unsigned char val;\
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asm volatile( "ldbio %0, 0(%1)" :"=r"(val) : "r" (addr)); val;})
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#define readw(addr)\
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({unsigned short val;\
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asm volatile( "ldhio %0, 0(%1)" :"=r"(val) : "r" (addr)); val;})
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#define readl(addr)\
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({unsigned long val;\
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asm volatile( "ldwio %0, 0(%1)" :"=r"(val) : "r" (addr)); val;})
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#define writeb(addr,val)\
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asm volatile ("stbio %1, 0(%0)" : : "r" (addr), "r" (val))
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#define writew(addr,val)\
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asm volatile ("sthio %1, 0(%0)" : : "r" (addr), "r" (val))
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#define writel(addr,val)\
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asm volatile ("stwio %1, 0(%0)" : : "r" (addr), "r" (val))
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#define inb(addr) readb(addr)
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#define inw(addr) readw(addr)
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#define inl(addr) readl(addr)
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#define outb(addr,val) writeb(addr,val)
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#define outw(addr,val) writew(addr,val)
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#define outl(addr,val) writel(addr,val)
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static inline void insb (unsigned long port, void *dst, unsigned long count)
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{
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unsigned char *p = dst;
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while (count--) *p++ = inb (port);
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}
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static inline void insw (unsigned long port, void *dst, unsigned long count)
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{
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unsigned short *p = dst;
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while (count--) *p++ = inw (port);
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}
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static inline void insl (unsigned long port, void *dst, unsigned long count)
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{
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unsigned long *p = dst;
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while (count--) *p++ = inl (port);
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}
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static inline void outsb (unsigned long port, const void *src, unsigned long count)
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{
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const unsigned char *p = src;
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while (count--) outb (*p++, port);
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}
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static inline void outsw (unsigned long port, const void *src, unsigned long count)
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{
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const unsigned short *p = src;
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while (count--) outw (*p++, port);
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}
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static inline void outsl (unsigned long port, const void *src, unsigned long count)
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{
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const unsigned long *p = src;
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while (count--) outl (*p++, port);
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}
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#endif /* __ASM_NIOS2_IO_H_ */
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