aboutsummaryrefslogtreecommitdiffstats
path: root/arch/m32r/kernel/io_usrv.c
diff options
context:
space:
mode:
authorHirokazu Takata <takata@linux-m32r.org>2005-06-21 20:16:10 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-21 22:07:30 -0400
commit2368086344c3d67b0f4aecac39d620fb9b8795c3 (patch)
treeaa55003e311abf6049acd23f5ff7f8bfd24eca4c /arch/m32r/kernel/io_usrv.c
parentd4c477ca5448f19afaaf6c0cfd655009ea9e614d (diff)
[PATCH] m32r: Support M3A-2170(Mappi-III) platform
This patchset is for supporting a new m32r platform, M3A-2170(Mappi-III) evaluation board. An M32R chip multiprocessor is equipped on the board. http://http://www.linux-m32r.org/eng/platform/platform.html * arch/m32r/Kconfig: Support Mappi-III platform. * arch/m32r/kernel/Makefile: ditto. * arch/m32r/kernel/io_mappi3.c: ditto. * arch/m32r/kernel/setup.c: ditto. * arch/m32r/kernel/setup_mappi3.c: ditto. * include/asm-m32r/m32102.h: ditto. * include/asm-m32r/m32r.h: ditto. * include/asm-m32r/mappi3/mappi3_pld.h: ditto. * include/asm-m32r/ide.h: CF support for Mappi-III. * arch/m32r/kernel/setup_mappi3.c: ditto. * arch/m32r/mappi3/defconfig.smp: A default config file for Mappi-III. * arch/m32r/mappi3/dot.gdbinit: A default .gdbinit file for Mappi-III. * arch/m32r/boot/compressed/m32r_sio.c: Modified for Mappi-III - At boot time, m32r-g00ff bootloader makes MMU off for Mappi-III, on the contrary it makes MMU on for Mappi-II. * arch/m32r/kernel/io_mappi2.c: Update comments. * arch/m32r/kernel/setup_mappi2.c: ditto. Signed-off-by: Mamoru Sakugawa <sakugawa@linux-m32r.org> Signed-off-by: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/m32r/kernel/io_usrv.c')
-rw-r--r--arch/m32r/kernel/io_usrv.c51
1 files changed, 14 insertions, 37 deletions
diff --git a/arch/m32r/kernel/io_usrv.c b/arch/m32r/kernel/io_usrv.c
index 27928a0b99ed..9eb161dcc104 100644
--- a/arch/m32r/kernel/io_usrv.c
+++ b/arch/m32r/kernel/io_usrv.c
@@ -3,8 +3,8 @@
3 * 3 *
4 * Typical I/O routines for uServer board. 4 * Typical I/O routines for uServer board.
5 * 5 *
6 * Copyright (c) 2001 - 2003 Hiroyuki Kondo, Hirokazu Takata, 6 * Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
7 * Hitoshi Yamamoto, Takeo Takahashi 7 * Hitoshi Yamamoto, Takeo Takahashi
8 * 8 *
9 * This file is subject to the terms and conditions of the GNU General 9 * This file is subject to the terms and conditions of the GNU General
10 * Public License. See the file "COPYING" in the main directory of this 10 * Public License. See the file "COPYING" in the main directory of this
@@ -39,7 +39,7 @@ extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
39 39
40#define PORT2ADDR(port) _port2addr(port) 40#define PORT2ADDR(port) _port2addr(port)
41 41
42static __inline__ void *_port2addr(unsigned long port) 42static inline void *_port2addr(unsigned long port)
43{ 43{
44#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE) 44#if defined(CONFIG_SERIAL_8250) || defined(CONFIG_SERIAL_8250_MODULE)
45 if (port >= UART0_IOSTART && port <= UART0_IOEND) 45 if (port >= UART0_IOSTART && port <= UART0_IOEND)
@@ -50,7 +50,7 @@ static __inline__ void *_port2addr(unsigned long port)
50 return (void *)(port + NONCACHE_OFFSET); 50 return (void *)(port + NONCACHE_OFFSET);
51} 51}
52 52
53static __inline__ void delay(void) 53static inline void delay(void)
54{ 54{
55 __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory"); 55 __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
56} 56}
@@ -87,39 +87,22 @@ unsigned long _inl(unsigned long port)
87 87
88unsigned char _inb_p(unsigned long port) 88unsigned char _inb_p(unsigned long port)
89{ 89{
90 unsigned char b; 90 unsigned char v = _inb(port);
91 91 delay();
92 if (port >= CFC_IOSTART && port <= CFC_IOEND) { 92 return v;
93 pcc_ioread_byte(0, port, &b, sizeof(b), 1, 0);
94 return b;
95 } else {
96 b = *(volatile unsigned char *)PORT2ADDR(port);
97 delay();
98 return b;
99 }
100} 93}
101 94
102unsigned short _inw_p(unsigned long port) 95unsigned short _inw_p(unsigned long port)
103{ 96{
104 unsigned short w; 97 unsigned short v = _inw(port);
105 98 delay();
106 if (port >= CFC_IOSTART && port <= CFC_IOEND) { 99 return v;
107 pcc_ioread_word(0, port, &w, sizeof(w), 1, 0);
108 return w;
109 } else {
110 w = *(volatile unsigned short *)PORT2ADDR(port);
111 delay();
112 return w;
113 }
114} 100}
115 101
116unsigned long _inl_p(unsigned long port) 102unsigned long _inl_p(unsigned long port)
117{ 103{
118 unsigned long v; 104 unsigned long v = _inl(port);
119
120 v = *(volatile unsigned long *)PORT2ADDR(port);
121 delay(); 105 delay();
122
123 return v; 106 return v;
124} 107}
125 108
@@ -149,25 +132,19 @@ void _outl(unsigned long l, unsigned long port)
149 132
150void _outb_p(unsigned char b, unsigned long port) 133void _outb_p(unsigned char b, unsigned long port)
151{ 134{
152 if (port >= CFC_IOSTART && port <= CFC_IOEND) 135 _outb(b, port);
153 pcc_iowrite_byte(0, port, &b, sizeof(b), 1, 0);
154 else
155 *(volatile unsigned char *)PORT2ADDR(port) = b;
156 delay(); 136 delay();
157} 137}
158 138
159void _outw_p(unsigned short w, unsigned long port) 139void _outw_p(unsigned short w, unsigned long port)
160{ 140{
161 if (port >= CFC_IOSTART && port <= CFC_IOEND) 141 _outw(w, port);
162 pcc_iowrite_word(0, port, &w, sizeof(w), 1, 0);
163 else
164 *(volatile unsigned short *)PORT2ADDR(port) = w;
165 delay(); 142 delay();
166} 143}
167 144
168void _outl_p(unsigned long l, unsigned long port) 145void _outl_p(unsigned long l, unsigned long port)
169{ 146{
170 *(volatile unsigned long *)PORT2ADDR(port) = l; 147 _outl(l, port);
171 delay(); 148 delay();
172} 149}
173 150