mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-11 05:42:58 +00:00
8bde7f776c
- remove trailing white space, trailing empty lines, C++ comments, etc.
- split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c)
* Patches by Kenneth Johansson, 25 Jun 2003:
- major rework of command structure
(work done mostly by Michal Cendrowski and Joakim Kristiansen)
180 lines
6 KiB
C
180 lines
6 KiB
C
/* originally from linux source.
|
|
* removed the dependencies on CONFIG_ values
|
|
* removed virt_to_phys stuff (and in fact everything surrounded by #if __KERNEL__)
|
|
* Modified By Rob Taylor, Flying Pig Systems, 2000
|
|
*/
|
|
|
|
#ifndef _PPC_IO_H
|
|
#define _PPC_IO_H
|
|
|
|
#include <linux/config.h>
|
|
#include <asm/byteorder.h>
|
|
|
|
#define SIO_CONFIG_RA 0x398
|
|
#define SIO_CONFIG_RD 0x399
|
|
|
|
|
|
#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
|
|
|
|
#define inb_p(port) in_8((u8 *)((port)+_IO_BASE))
|
|
#define outb_p(val, port) out_8((u8 *)((port)+_IO_BASE), (val))
|
|
#define inw_p(port) in_le16((u16 *)((port)+_IO_BASE))
|
|
#define outw_p(val, port) out_le16((u16 *)((port)+_IO_BASE), (val))
|
|
#define inl_p(port) in_le32((u32 *)((port)+_IO_BASE))
|
|
#define outl_p(val, port) out_le32((u32 *)((port)+_IO_BASE), (val))
|
|
|
|
extern void _insb(volatile u8 *port, void *buf, int ns);
|
|
extern void _outsb(volatile u8 *port, const void *buf, int ns);
|
|
extern void _insw(volatile u16 *port, void *buf, int ns);
|
|
extern void _outsw(volatile u16 *port, const void *buf, int ns);
|
|
extern void _insl(volatile u32 *port, void *buf, int nl);
|
|
extern void _outsl(volatile u32 *port, const void *buf, int nl);
|
|
extern void _insw_ns(volatile u16 *port, void *buf, int ns);
|
|
extern void _outsw_ns(volatile u16 *port, const void *buf, int ns);
|
|
extern void _insl_ns(volatile u32 *port, void *buf, int nl);
|
|
extern void _outsl_ns(volatile u32 *port, const void *buf, int nl);
|
|
|
|
/*
|
|
* 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
|
|
|
|
#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))
|
|
|
|
/*
|
|
* Enforce In-order Execution of I/O:
|
|
* Acts as a barrier to ensure all previous I/O accesses have
|
|
* completed before any further ones are issued.
|
|
*/
|
|
#define eieio() __asm__ __volatile__ ("eieio" : : : "memory");
|
|
#define sync() __asm__ __volatile__ ("sync" : : : "memory");
|
|
|
|
/* Enforce in-order execution of data I/O.
|
|
* No distinction between read/write on PPC; use eieio for all three.
|
|
*/
|
|
#define iobarrier_rw() eieio()
|
|
#define iobarrier_r() eieio()
|
|
#define iobarrier_w() eieio()
|
|
|
|
/*
|
|
* 8, 16 and 32 bit, big and little endian I/O operations, with barrier.
|
|
*/
|
|
extern inline int in_8(volatile u8 *addr)
|
|
{
|
|
int ret;
|
|
|
|
__asm__ __volatile__("lbz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr));
|
|
return ret;
|
|
}
|
|
|
|
extern inline void out_8(volatile u8 *addr, int val)
|
|
{
|
|
__asm__ __volatile__("stb%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
|
|
}
|
|
|
|
extern inline int in_le16(volatile u16 *addr)
|
|
{
|
|
int ret;
|
|
|
|
__asm__ __volatile__("lhbrx %0,0,%1; eieio" : "=r" (ret) :
|
|
"r" (addr), "m" (*addr));
|
|
return ret;
|
|
}
|
|
|
|
extern inline int in_be16(volatile u16 *addr)
|
|
{
|
|
int ret;
|
|
|
|
__asm__ __volatile__("lhz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr));
|
|
return ret;
|
|
}
|
|
|
|
extern inline void out_le16(volatile u16 *addr, int val)
|
|
{
|
|
__asm__ __volatile__("sthbrx %1,0,%2; eieio" : "=m" (*addr) :
|
|
"r" (val), "r" (addr));
|
|
}
|
|
|
|
extern inline void out_be16(volatile u16 *addr, int val)
|
|
{
|
|
__asm__ __volatile__("sth%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
|
|
}
|
|
|
|
extern inline unsigned in_le32(volatile u32 *addr)
|
|
{
|
|
unsigned ret;
|
|
|
|
__asm__ __volatile__("lwbrx %0,0,%1; eieio" : "=r" (ret) :
|
|
"r" (addr), "m" (*addr));
|
|
return ret;
|
|
}
|
|
|
|
extern inline unsigned in_be32(volatile u32 *addr)
|
|
{
|
|
unsigned ret;
|
|
|
|
__asm__ __volatile__("lwz%U1%X1 %0,%1; eieio" : "=r" (ret) : "m" (*addr));
|
|
return ret;
|
|
}
|
|
|
|
extern inline void out_le32(volatile unsigned *addr, int val)
|
|
{
|
|
__asm__ __volatile__("stwbrx %1,0,%2; eieio" : "=m" (*addr) :
|
|
"r" (val), "r" (addr));
|
|
}
|
|
|
|
extern inline void out_be32(volatile unsigned *addr, int val)
|
|
{
|
|
__asm__ __volatile__("stw%U0%X0 %1,%0; eieio" : "=m" (*addr) : "r" (val));
|
|
}
|
|
|
|
#endif
|