hexagon: simplify asm/io.h for !HAS_IOPORT

Hexagon fails to build after the final patch that makes CONFIG_HAS_IOPORT
optional:

In file included from arch/hexagon/include/asm/io.h:328:
include/asm-generic/io.h:854:18: error: static declaration of 'ioread8' follows non-static declaration
  854 | static inline u8 ioread8(const volatile void __iomem *addr)
      |                  ^
include/asm-generic/io.h:853:17: note: expanded from macro 'ioread8'
  853 | #define ioread8 ioread8
      |                 ^
include/asm-generic/iomap.h:29:21: note: previous declaration is here
   29 | extern unsigned int ioread8(const void __iomem *);
      |                     ^

As it turns out, most of its asm/io.h and lib/io.c files is redundant now,
and just removing all that makes it build again.

As with the other architectures, defining the __raw_readl()/__raw_writel()
type functions instead of the non-__raw ones is better here for consistency.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

2 files changed, 1 insertions, 83 deletions

diff --git a/arch/hexagon/lib/Makefile b/arch/hexagon/lib/Makefile
index a64641e89d5f..107894c0910e 100644
--- a/arch/hexagon/lib/Makefile
+++ b/arch/hexagon/lib/Makefile
@@ -2,5 +2,5 @@
 #
 # Makefile for hexagon-specific library files.
 #
-obj-y = checksum.o io.o memcpy.o memset.o memcpy_likely_aligned.o \
+obj-y = checksum.o memcpy.o memset.o memcpy_likely_aligned.o \
          divsi3.o modsi3.o udivsi3.o  umodsi3.o
diff --git a/arch/hexagon/lib/io.c b/arch/hexagon/lib/io.c
deleted file mode 100644
index 55f75392857b..000000000000
--- a/arch/hexagon/lib/io.c
+++ /dev/null
@@ -1,82 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * I/O access functions for Hexagon
- *
- * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
- */
-
-#include <asm/io.h>
-
-/*  These are all FIFO routines!  */
-
-/*
- * __raw_readsw - read words a short at a time
- * @addr:  source address
- * @data:  data address
- * @len: number of shorts to read
- */
-void __raw_readsw(const void __iomem *addr, void *data, int len)
-{
-	const volatile short int *src = (short int *) addr;
-	short int *dst = (short int *) data;
-
-	if ((u32)data & 0x1)
-		panic("unaligned pointer to readsw");
-
-	while (len-- > 0)
-		*dst++ = *src;
-
-}
-EXPORT_SYMBOL(__raw_readsw);
-
-/*
- * __raw_writesw - read words a short at a time
- * @addr:  source address
- * @data:  data address
- * @len: number of shorts to read
- */
-void __raw_writesw(void __iomem *addr, const void *data, int len)
-{
-	const short int *src = (short int *)data;
-	volatile short int *dst = (short int *)addr;
-
-	if ((u32)data & 0x1)
-		panic("unaligned pointer to writesw");
-
-	while (len-- > 0)
-		*dst = *src++;
-
-
-}
-EXPORT_SYMBOL(__raw_writesw);
-
-/*  Pretty sure len is pre-adjusted for the length of the access already */
-void __raw_readsl(const void __iomem *addr, void *data, int len)
-{
-	const volatile long *src = (long *) addr;
-	long *dst = (long *) data;
-
-	if ((u32)data & 0x3)
-		panic("unaligned pointer to readsl");
-
-	while (len-- > 0)
-		*dst++ = *src;
-
-
-}
-EXPORT_SYMBOL(__raw_readsl);
-
-void __raw_writesl(void __iomem *addr, const void *data, int len)
-{
-	const long *src = (long *)data;
-	volatile long *dst = (long *)addr;
-
-	if ((u32)data & 0x3)
-		panic("unaligned pointer to writesl");
-
-	while (len-- > 0)
-		*dst = *src++;
-
-
-}
-EXPORT_SYMBOL(__raw_writesl);