mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-25 14:10:43 +00:00
e99ccb4881
Also add CONFIG_PHYS_64BIT on powerpc to deal with 32-bit ppc's that have larger physical addresses like 44x, 85xx, and 86xx. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
254 lines
6.6 KiB
C
254 lines
6.6 KiB
C
/*
|
|
* IO header file
|
|
*
|
|
* Copyright (C) 2004-2007 Freescale Semiconductor, Inc.
|
|
* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef __ASM_M68K_IO_H__
|
|
#define __ASM_M68K_IO_H__
|
|
|
|
#include <asm/byteorder.h>
|
|
|
|
#define __raw_readb(addr) (*(volatile u8 *)(addr))
|
|
#define __raw_readw(addr) (*(volatile u16 *)(addr))
|
|
#define __raw_readl(addr) (*(volatile u32 *)(addr))
|
|
|
|
#define __raw_writeb(b,addr) ((*(volatile u8 *) (addr)) = (b))
|
|
#define __raw_writew(w,addr) ((*(volatile u16 *) (addr)) = (w))
|
|
#define __raw_writel(l,addr) ((*(volatile u32 *) (addr)) = (l))
|
|
|
|
#define readb(addr) in_8((volatile u8 *)(addr))
|
|
#define writeb(b,addr) out_8((volatile u8 *)(addr), (b))
|
|
#if !defined(__BIG_ENDIAN)
|
|
#define readw(addr) (*(volatile u16 *) (addr))
|
|
#define readl(addr) (*(volatile u32 *) (addr))
|
|
#define writew(b,addr) ((*(volatile u16 *) (addr)) = (b))
|
|
#define writel(b,addr) ((*(volatile u32 *) (addr)) = (b))
|
|
#else
|
|
#define readw(addr) in_le16((volatile u16 *)(addr))
|
|
#define readl(addr) in_le32((volatile u32 *)(addr))
|
|
#define writew(b,addr) out_le16((volatile u16 *)(addr),(b))
|
|
#define writel(b,addr) out_le32((volatile u32 *)(addr),(b))
|
|
#endif
|
|
|
|
/*
|
|
* The insw/outsw/insl/outsl macros don't do byte-swapping.
|
|
* They are only used in practice for transferring buffers which
|
|
* are arrays of bytes, and byte-swapping is not appropriate in
|
|
* that case. - paulus
|
|
*/
|
|
#define insb(port, buf, ns) _insb((u8 *)((port)+_IO_BASE), (buf), (ns))
|
|
#define outsb(port, buf, ns) _outsb((u8 *)((port)+_IO_BASE), (buf), (ns))
|
|
#define insw(port, buf, ns) _insw_ns((u16 *)((port)+_IO_BASE), (buf), (ns))
|
|
#define outsw(port, buf, ns) _outsw_ns((u16 *)((port)+_IO_BASE), (buf), (ns))
|
|
#define insl(port, buf, nl) _insl_ns((u32 *)((port)+_IO_BASE), (buf), (nl))
|
|
#define outsl(port, buf, nl) _outsl_ns((u32 *)((port)+_IO_BASE), (buf), (nl))
|
|
|
|
#define inb(port) in_8((u8 *)((port)+_IO_BASE))
|
|
#define outb(val, port) out_8((u8 *)((port)+_IO_BASE), (val))
|
|
#if !defined(__BIG_ENDIAN)
|
|
#define inw(port) in_be16((u16 *)((port)+_IO_BASE))
|
|
#define outw(val, port) out_be16((u16 *)((port)+_IO_BASE), (val))
|
|
#define inl(port) in_be32((u32 *)((port)+_IO_BASE))
|
|
#define outl(val, port) out_be32((u32 *)((port)+_IO_BASE), (val))
|
|
#else
|
|
#define inw(port) in_le16((u16 *)((port)+_IO_BASE))
|
|
#define outw(val, port) out_le16((u16 *)((port)+_IO_BASE), (val))
|
|
#define inl(port) in_le32((u32 *)((port)+_IO_BASE))
|
|
#define outl(val, port) out_le32((u32 *)((port)+_IO_BASE), (val))
|
|
#endif
|
|
|
|
extern inline void _insb(volatile u8 * port, void *buf, int ns)
|
|
{
|
|
u8 *data = (u8 *) buf;
|
|
while (ns--)
|
|
*data++ = *port;
|
|
}
|
|
|
|
extern inline void _outsb(volatile u8 * port, const void *buf, int ns)
|
|
{
|
|
u8 *data = (u8 *) buf;
|
|
while (ns--)
|
|
*port = *data++;
|
|
}
|
|
|
|
extern inline void _insw(volatile u16 * port, void *buf, int ns)
|
|
{
|
|
u16 *data = (u16 *) buf;
|
|
while (ns--)
|
|
*data++ = __sw16(*port);
|
|
}
|
|
|
|
extern inline void _outsw(volatile u16 * port, const void *buf, int ns)
|
|
{
|
|
u16 *data = (u16 *) buf;
|
|
while (ns--) {
|
|
*port = __sw16(*data);
|
|
data++;
|
|
}
|
|
}
|
|
|
|
extern inline void _insl(volatile u32 * port, void *buf, int nl)
|
|
{
|
|
u32 *data = (u32 *) buf;
|
|
while (nl--)
|
|
*data++ = __sw32(*port);
|
|
}
|
|
|
|
extern inline void _outsl(volatile u32 * port, const void *buf, int nl)
|
|
{
|
|
u32 *data = (u32 *) buf;
|
|
while (nl--) {
|
|
*port = __sw32(*data);
|
|
data++;
|
|
}
|
|
}
|
|
|
|
extern inline void _insw_ns(volatile u16 * port, void *buf, int ns)
|
|
{
|
|
u16 *data = (u16 *) buf;
|
|
while (ns--)
|
|
*data++ = *port;
|
|
}
|
|
|
|
extern inline void _outsw_ns(volatile u16 * port, const void *buf, int ns)
|
|
{
|
|
u16 *data = (u16 *) buf;
|
|
while (ns--) {
|
|
*port = *data++;
|
|
}
|
|
}
|
|
|
|
extern inline void _insl_ns(volatile u32 * port, void *buf, int nl)
|
|
{
|
|
u32 *data = (u32 *) buf;
|
|
while (nl--)
|
|
*data++ = *port;
|
|
}
|
|
|
|
extern inline void _outsl_ns(volatile u32 * port, const void *buf, int nl)
|
|
{
|
|
u32 *data = (u32 *) buf;
|
|
while (nl--) {
|
|
*port = *data;
|
|
data++;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* The *_ns versions below don't do byte-swapping.
|
|
* Neither do the standard versions now, these are just here
|
|
* for older code.
|
|
*/
|
|
#define insw_ns(port, buf, ns) _insw_ns((u16 *)((port)+_IO_BASE), (buf), (ns))
|
|
#define outsw_ns(port, buf, ns) _outsw_ns((u16 *)((port)+_IO_BASE), (buf), (ns))
|
|
#define insl_ns(port, buf, nl) _insl_ns((u32 *)((port)+_IO_BASE), (buf), (nl))
|
|
#define outsl_ns(port, buf, nl) _outsl_ns((u32 *)((port)+_IO_BASE), (buf), (nl))
|
|
|
|
#define IO_SPACE_LIMIT ~0
|
|
|
|
/*
|
|
* 8, 16 and 32 bit, big and little endian I/O operations, with barrier.
|
|
*/
|
|
extern inline int in_8(volatile u8 * addr)
|
|
{
|
|
return (int)*addr;
|
|
}
|
|
|
|
extern inline void out_8(volatile u8 * addr, int val)
|
|
{
|
|
*addr = (u8) val;
|
|
}
|
|
|
|
extern inline int in_le16(volatile u16 * addr)
|
|
{
|
|
return __sw16(*addr);
|
|
}
|
|
|
|
extern inline int in_be16(volatile u16 * addr)
|
|
{
|
|
return (*addr & 0xFFFF);
|
|
}
|
|
|
|
extern inline void out_le16(volatile u16 * addr, int val)
|
|
{
|
|
*addr = __sw16(val);
|
|
}
|
|
|
|
extern inline void out_be16(volatile u16 * addr, int val)
|
|
{
|
|
*addr = (u16) val;
|
|
}
|
|
|
|
extern inline unsigned in_le32(volatile u32 * addr)
|
|
{
|
|
return __sw32(*addr);
|
|
}
|
|
|
|
extern inline unsigned in_be32(volatile u32 * addr)
|
|
{
|
|
return (*addr);
|
|
}
|
|
|
|
extern inline void out_le32(volatile unsigned *addr, int val)
|
|
{
|
|
*addr = __sw32(val);
|
|
}
|
|
|
|
extern inline void out_be32(volatile unsigned *addr, int val)
|
|
{
|
|
*addr = val;
|
|
}
|
|
|
|
static inline void sync(void)
|
|
{
|
|
/* This sync function is for PowerPC or other architecture instruction
|
|
* ColdFire does not have this instruction. Dummy function, added for
|
|
* compatibility (CFI driver)
|
|
*/
|
|
}
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
|
|
}
|
|
|
|
#endif /* __ASM_M68K_IO_H__ */
|