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authorArnd Bergmann <arnd@arndb.de>2018-03-07 15:36:19 -0500
committerArnd Bergmann <arnd@arndb.de>2018-03-09 17:20:00 -0500
commit553b085c2075f6a4a2591108554f830fa61e881f (patch)
tree68d63911f2c12e0fb9fa23498df9300442a88f92 /arch/m32r/platforms/m32104ut/io.c
parentfd8773f9f544955f6f47dc2ac3ab85ad64376b7f (diff)
arch: remove m32r port
The Mitsubishi/Renesas m32r architecture has been around for many years, but the Linux port has been obsolete for a very long time as well, with the last significant updates done for linux-2.6.14. While some m32r microcontrollers are still being marketed by Renesas, those are apparently no longer possible to support, mainly due to the lack of an external memory interface. Hirokazu Takata was the maintainer until the architecture got marked Orphaned in 2014. Link: http://www.linux-m32r.org/ Link: https://www.renesas.com/en-eu/products/microcontrollers-microprocessors/m32r.html Cc: Hirokazu Takata <takata@linux-m32r.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/m32r/platforms/m32104ut/io.c')
-rw-r--r--arch/m32r/platforms/m32104ut/io.c298
1 files changed, 0 insertions, 298 deletions
diff --git a/arch/m32r/platforms/m32104ut/io.c b/arch/m32r/platforms/m32104ut/io.c
deleted file mode 100644
index ff2bb3b58bb5..000000000000
--- a/arch/m32r/platforms/m32104ut/io.c
+++ /dev/null
@@ -1,298 +0,0 @@
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/arch/m32r/platforms/m32104ut/io.c
4 *
5 * Typical I/O routines for M32104UT board.
6 *
7 * Copyright (c) 2001-2005 Hiroyuki Kondo, Hirokazu Takata,
8 * Hitoshi Yamamoto, Mamoru Sakugawa,
9 * Naoto Sugai, Hayato Fujiwara
10 */
11
12#include <asm/m32r.h>
13#include <asm/page.h>
14#include <asm/io.h>
15#include <asm/byteorder.h>
16
17#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
18#include <linux/types.h>
19
20#define M32R_PCC_IOMAP_SIZE 0x1000
21
22#define M32R_PCC_IOSTART0 0x1000
23#define M32R_PCC_IOEND0 (M32R_PCC_IOSTART0 + M32R_PCC_IOMAP_SIZE - 1)
24
25extern void pcc_ioread_byte(int, unsigned long, void *, size_t, size_t, int);
26extern void pcc_ioread_word(int, unsigned long, void *, size_t, size_t, int);
27extern void pcc_iowrite_byte(int, unsigned long, void *, size_t, size_t, int);
28extern void pcc_iowrite_word(int, unsigned long, void *, size_t, size_t, int);
29#endif /* CONFIG_PCMCIA && CONFIG_M32R_CFC */
30
31#define PORT2ADDR(port) _port2addr(port)
32
33static inline void *_port2addr(unsigned long port)
34{
35 return (void *)(port | NONCACHE_OFFSET);
36}
37
38#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
39static inline void *__port2addr_ata(unsigned long port)
40{
41 static int dummy_reg;
42
43 switch (port) {
44 case 0x1f0: return (void *)(0x0c002000 | NONCACHE_OFFSET);
45 case 0x1f1: return (void *)(0x0c012800 | NONCACHE_OFFSET);
46 case 0x1f2: return (void *)(0x0c012002 | NONCACHE_OFFSET);
47 case 0x1f3: return (void *)(0x0c012802 | NONCACHE_OFFSET);
48 case 0x1f4: return (void *)(0x0c012004 | NONCACHE_OFFSET);
49 case 0x1f5: return (void *)(0x0c012804 | NONCACHE_OFFSET);
50 case 0x1f6: return (void *)(0x0c012006 | NONCACHE_OFFSET);
51 case 0x1f7: return (void *)(0x0c012806 | NONCACHE_OFFSET);
52 case 0x3f6: return (void *)(0x0c01200e | NONCACHE_OFFSET);
53 default: return (void *)&dummy_reg;
54 }
55}
56#endif
57
58/*
59 * M32104T-LAN is located in the extended bus space
60 * from 0x01000000 to 0x01ffffff on physical address.
61 * The base address of LAN controller(LAN91C111) is 0x300.
62 */
63#define LAN_IOSTART (0x300 | NONCACHE_OFFSET)
64#define LAN_IOEND (0x320 | NONCACHE_OFFSET)
65static inline void *_port2addr_ne(unsigned long port)
66{
67 return (void *)(port + NONCACHE_OFFSET + 0x01000000);
68}
69
70static inline void delay(void)
71{
72 __asm__ __volatile__ ("push r0; \n\t pop r0;" : : :"memory");
73}
74
75/*
76 * NIC I/O function
77 */
78
79#define PORT2ADDR_NE(port) _port2addr_ne(port)
80
81static inline unsigned char _ne_inb(void *portp)
82{
83 return *(volatile unsigned char *)portp;
84}
85
86static inline unsigned short _ne_inw(void *portp)
87{
88 return (unsigned short)le16_to_cpu(*(volatile unsigned short *)portp);
89}
90
91static inline void _ne_insb(void *portp, void *addr, unsigned long count)
92{
93 unsigned char *buf = (unsigned char *)addr;
94
95 while (count--)
96 *buf++ = _ne_inb(portp);
97}
98
99static inline void _ne_outb(unsigned char b, void *portp)
100{
101 *(volatile unsigned char *)portp = b;
102}
103
104static inline void _ne_outw(unsigned short w, void *portp)
105{
106 *(volatile unsigned short *)portp = cpu_to_le16(w);
107}
108
109unsigned char _inb(unsigned long port)
110{
111 if (port >= LAN_IOSTART && port < LAN_IOEND)
112 return _ne_inb(PORT2ADDR_NE(port));
113
114 return *(volatile unsigned char *)PORT2ADDR(port);
115}
116
117unsigned short _inw(unsigned long port)
118{
119 if (port >= LAN_IOSTART && port < LAN_IOEND)
120 return _ne_inw(PORT2ADDR_NE(port));
121
122 return *(volatile unsigned short *)PORT2ADDR(port);
123}
124
125unsigned long _inl(unsigned long port)
126{
127 return *(volatile unsigned long *)PORT2ADDR(port);
128}
129
130unsigned char _inb_p(unsigned long port)
131{
132 unsigned char v = _inb(port);
133 delay();
134 return (v);
135}
136
137unsigned short _inw_p(unsigned long port)
138{
139 unsigned short v = _inw(port);
140 delay();
141 return (v);
142}
143
144unsigned long _inl_p(unsigned long port)
145{
146 unsigned long v = _inl(port);
147 delay();
148 return (v);
149}
150
151void _outb(unsigned char b, unsigned long port)
152{
153 if (port >= LAN_IOSTART && port < LAN_IOEND)
154 _ne_outb(b, PORT2ADDR_NE(port));
155 else
156 *(volatile unsigned char *)PORT2ADDR(port) = b;
157}
158
159void _outw(unsigned short w, unsigned long port)
160{
161 if (port >= LAN_IOSTART && port < LAN_IOEND)
162 _ne_outw(w, PORT2ADDR_NE(port));
163 else
164 *(volatile unsigned short *)PORT2ADDR(port) = w;
165}
166
167void _outl(unsigned long l, unsigned long port)
168{
169 *(volatile unsigned long *)PORT2ADDR(port) = l;
170}
171
172void _outb_p(unsigned char b, unsigned long port)
173{
174 _outb(b, port);
175 delay();
176}
177
178void _outw_p(unsigned short w, unsigned long port)
179{
180 _outw(w, port);
181 delay();
182}
183
184void _outl_p(unsigned long l, unsigned long port)
185{
186 _outl(l, port);
187 delay();
188}
189
190void _insb(unsigned int port, void *addr, unsigned long count)
191{
192 if (port >= LAN_IOSTART && port < LAN_IOEND)
193 _ne_insb(PORT2ADDR_NE(port), addr, count);
194 else {
195 unsigned char *buf = addr;
196 unsigned char *portp = PORT2ADDR(port);
197 while (count--)
198 *buf++ = *(volatile unsigned char *)portp;
199 }
200}
201
202void _insw(unsigned int port, void *addr, unsigned long count)
203{
204 unsigned short *buf = addr;
205 unsigned short *portp;
206
207 if (port >= LAN_IOSTART && port < LAN_IOEND) {
208 /*
209 * This portion is only used by smc91111.c to read data
210 * from the DATA_REG. Do not swap the data.
211 */
212 portp = PORT2ADDR_NE(port);
213 while (count--)
214 *buf++ = *(volatile unsigned short *)portp;
215#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
216 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
217 pcc_ioread_word(9, port, (void *)addr, sizeof(unsigned short),
218 count, 1);
219#endif
220#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
221 } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
222 portp = __port2addr_ata(port);
223 while (count--)
224 *buf++ = *(volatile unsigned short *)portp;
225#endif
226 } else {
227 portp = PORT2ADDR(port);
228 while (count--)
229 *buf++ = *(volatile unsigned short *)portp;
230 }
231}
232
233void _insl(unsigned int port, void *addr, unsigned long count)
234{
235 unsigned long *buf = addr;
236 unsigned long *portp;
237
238 portp = PORT2ADDR(port);
239 while (count--)
240 *buf++ = *(volatile unsigned long *)portp;
241}
242
243void _outsb(unsigned int port, const void *addr, unsigned long count)
244{
245 const unsigned char *buf = addr;
246 unsigned char *portp;
247
248 if (port >= LAN_IOSTART && port < LAN_IOEND) {
249 portp = PORT2ADDR_NE(port);
250 while (count--)
251 _ne_outb(*buf++, portp);
252 } else {
253 portp = PORT2ADDR(port);
254 while (count--)
255 *(volatile unsigned char *)portp = *buf++;
256 }
257}
258
259void _outsw(unsigned int port, const void *addr, unsigned long count)
260{
261 const unsigned short *buf = addr;
262 unsigned short *portp;
263
264 if (port >= LAN_IOSTART && port < LAN_IOEND) {
265 /*
266 * This portion is only used by smc91111.c to write data
267 * into the DATA_REG. Do not swap the data.
268 */
269 portp = PORT2ADDR_NE(port);
270 while (count--)
271 *(volatile unsigned short *)portp = *buf++;
272#if defined(CONFIG_IDE) && !defined(CONFIG_M32R_CFC)
273 } else if ((port >= 0x1f0 && port <=0x1f7) || port == 0x3f6) {
274 portp = __port2addr_ata(port);
275 while (count--)
276 *(volatile unsigned short *)portp = *buf++;
277#endif
278#if defined(CONFIG_PCMCIA) && defined(CONFIG_M32R_CFC)
279 } else if (port >= M32R_PCC_IOSTART0 && port <= M32R_PCC_IOEND0) {
280 pcc_iowrite_word(9, port, (void *)addr, sizeof(unsigned short),
281 count, 1);
282#endif
283 } else {
284 portp = PORT2ADDR(port);
285 while (count--)
286 *(volatile unsigned short *)portp = *buf++;
287 }
288}
289
290void _outsl(unsigned int port, const void *addr, unsigned long count)
291{
292 const unsigned long *buf = addr;
293 unsigned char *portp;
294
295 portp = PORT2ADDR(port);
296 while (count--)
297 *(volatile unsigned long *)portp = *buf++;
298}
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