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authorMax Filippov <jcmvbkbc@gmail.com>2012-09-16 21:44:40 -0400
committerChris Zankel <chris@zankel.net>2012-10-03 18:11:42 -0400
commitd38efc1f150f38b7f593ac7e26789c550d4bc183 (patch)
tree79ec8a6d3066c0e0fe0d303ed62e48bdba8cede1 /arch/xtensa/kernel
parent02f3774877382bac52972a677c2c5fbd3532a1a1 (diff)
xtensa: adopt generic io routines
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
Diffstat (limited to 'arch/xtensa/kernel')
-rw-r--r--arch/xtensa/kernel/Makefile2
-rw-r--r--arch/xtensa/kernel/io.c75
2 files changed, 1 insertions, 76 deletions
diff --git a/arch/xtensa/kernel/Makefile b/arch/xtensa/kernel/Makefile
index 0f9f35fc191a..f36cef5a62ff 100644
--- a/arch/xtensa/kernel/Makefile
+++ b/arch/xtensa/kernel/Makefile
@@ -6,7 +6,7 @@ extra-y := head.o vmlinux.lds
6 6
7obj-y := align.o entry.o irq.o coprocessor.o process.o ptrace.o \ 7obj-y := align.o entry.o irq.o coprocessor.o process.o ptrace.o \
8 setup.o signal.o syscall.o time.o traps.o vectors.o platform.o \ 8 setup.o signal.o syscall.o time.o traps.o vectors.o platform.o \
9 pci-dma.o io.o 9 pci-dma.o
10 10
11obj-$(CONFIG_KGDB) += xtensa-stub.o 11obj-$(CONFIG_KGDB) += xtensa-stub.o
12obj-$(CONFIG_PCI) += pci.o 12obj-$(CONFIG_PCI) += pci.o
diff --git a/arch/xtensa/kernel/io.c b/arch/xtensa/kernel/io.c
deleted file mode 100644
index 5b65269b1d2f..000000000000
--- a/arch/xtensa/kernel/io.c
+++ /dev/null
@@ -1,75 +0,0 @@
1/*
2 * arch/xtensa/io.c
3 *
4 * IO primitives
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; either version 2 of the License, or (at your
9 * option) any later version.
10 *
11 * Copied from sparc.
12 *
13 * Chris Zankel <chris@zankel.net>
14 *
15 */
16
17#include <asm/io.h>
18#include <asm/byteorder.h>
19
20void outsb(unsigned long addr, const void *src, unsigned long count) {
21 while (count) {
22 count -= 1;
23 writeb(*(const char *)src, addr);
24 src += 1;
25 addr += 1;
26 }
27}
28
29void outsw(unsigned long addr, const void *src, unsigned long count) {
30 while (count) {
31 count -= 2;
32 writew(*(const short *)src, addr);
33 src += 2;
34 addr += 2;
35 }
36}
37
38void outsl(unsigned long addr, const void *src, unsigned long count) {
39 while (count) {
40 count -= 4;
41 writel(*(const long *)src, addr);
42 src += 4;
43 addr += 4;
44 }
45}
46
47void insb(unsigned long addr, void *dst, unsigned long count) {
48 while (count) {
49 count -= 1;
50 *(unsigned char *)dst = readb(addr);
51 dst += 1;
52 addr += 1;
53 }
54}
55
56void insw(unsigned long addr, void *dst, unsigned long count) {
57 while (count) {
58 count -= 2;
59 *(unsigned short *)dst = readw(addr);
60 dst += 2;
61 addr += 2;
62 }
63}
64
65void insl(unsigned long addr, void *dst, unsigned long count) {
66 while (count) {
67 count -= 4;
68 /*
69 * XXX I am sure we are in for an unaligned trap here.
70 */
71 *(unsigned long *)dst = readl(addr);
72 dst += 4;
73 addr += 4;
74 }
75}