x86: Remove dead ISA related codes

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>

diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 3156781..a72daf2 100644 (file)
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -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 */