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x86: Remove dead ISA related codes

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Neither new design uses ISA bus, nor does any U-Boot codes use these
codes. Remove them.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2017-08-03 22:52:44 -07:00
parent eaa90e5df2
commit 091e51d20f
1 changed files with 8 additions and 66 deletions
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74
arch/x86/include/asm/io.h
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@ -1,3 +1,10 @@
/*
* (C) Copyright 2000-2002
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _ASM_IO_H
#define _ASM_IO_H
@ -118,71 +125,6 @@
#define setbits_8(addr, set) setbits(8, addr, set)
#define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set)
/*
* ISA space is 'always mapped' on a typical x86 system, no need to
* explicitly ioremap() it. The fact that the ISA IO space is mapped
* to PAGE_OFFSET is pure coincidence - it does not mean ISA values
* are physical addresses. The following constant pointer can be
* used as the IO-area pointer (it can be iounmapped as well, so the
* analogy with PCI is quite large):
*/
#define isa_readb(a) readb((a))
#define isa_readw(a) readw((a))
#define isa_readl(a) readl((a))
#define isa_writeb(b,a) writeb(b,(a))
#define isa_writew(w,a) writew(w,(a))
#define isa_writel(l,a) writel(l,(a))
#define isa_memset_io(a,b,c) memset_io((a),(b),(c))
#define isa_memcpy_fromio(a,b,c) memcpy_fromio((a),(b),(c))
#define isa_memcpy_toio(a,b,c) memcpy_toio((a),(b),(c))
static inline int check_signature(unsigned long io_addr,
const unsigned char *signature, int length)
{
int retval = 0;
do {
if (readb(io_addr) != *signature)
goto out;
io_addr++;
signature++;
length--;
} while (length);
retval = 1;
out:
return retval;
}
/**
* isa_check_signature - find BIOS signatures
* @io_addr: mmio address to check
* @signature: signature block
* @length: length of signature
*
* Perform a signature comparison with the ISA mmio address io_addr.
* Returns 1 on a match.
*
* This function is deprecated. New drivers should use ioremap and
* check_signature.
*/
static inline int isa_check_signature(unsigned long io_addr,
const unsigned char *signature, int length)
{
int retval = 0;
do {
if (isa_readb(io_addr) != *signature)
goto out;
io_addr++;
signature++;
length--;
} while (length);
retval = 1;
out:
return retval;
}
#endif /* __KERNEL__ */
#ifdef SLOW_IO_BY_JUMPING
@ -325,4 +267,4 @@ static inline phys_addr_t virt_to_phys(void * vaddr)
#define __iormb() dmb()
#define __iowmb() dmb()
#endif
#endif /* _ASM_IO_H */