Commit | Line | Data |
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1da177e4 LT |
1 | /****************************************************************************/ |
2 | ||
3 | /* | |
4 | * mcfsmc.h -- SMC ethernet support for ColdFire environments. | |
5 | * | |
6 | * (C) Copyright 1999-2002, Greg Ungerer (gerg@snapgear.com) | |
7 | * (C) Copyright 2000, Lineo Inc. (www.lineo.com) | |
8 | */ | |
9 | ||
10 | /****************************************************************************/ | |
11 | #ifndef mcfsmc_h | |
12 | #define mcfsmc_h | |
13 | /****************************************************************************/ | |
14 | ||
15 | /* | |
16 | * None of the current ColdFire targets that use the SMC91x111 | |
17 | * allow 8 bit accesses. So this code is 16bit access only. | |
18 | */ | |
19 | ||
20 | #include <linux/config.h> | |
21 | ||
22 | #undef outb | |
23 | #undef inb | |
24 | #undef outw | |
25 | #undef outwd | |
26 | #undef inw | |
27 | #undef outl | |
28 | #undef inl | |
29 | ||
30 | #undef outsb | |
31 | #undef outsw | |
32 | #undef outsl | |
33 | #undef insb | |
34 | #undef insw | |
35 | #undef insl | |
36 | ||
37 | /* | |
38 | * Re-defines for ColdFire environment... The SMC part is | |
39 | * mapped into memory space, so remap the PC-style in/out | |
40 | * routines to handle that. | |
41 | */ | |
42 | #define outb smc_outb | |
43 | #define inb smc_inb | |
44 | #define outw smc_outw | |
45 | #define outwd smc_outwd | |
46 | #define inw smc_inw | |
47 | #define outl smc_outl | |
48 | #define inl smc_inl | |
49 | ||
50 | #define outsb smc_outsb | |
51 | #define outsw smc_outsw | |
52 | #define outsl smc_outsl | |
53 | #define insb smc_insb | |
54 | #define insw smc_insw | |
55 | #define insl smc_insl | |
56 | ||
57 | ||
58 | static inline int smc_inb(unsigned int addr) | |
59 | { | |
60 | register unsigned short w; | |
61 | w = *((volatile unsigned short *) (addr & ~0x1)); | |
62 | return(((addr & 0x1) ? w : (w >> 8)) & 0xff); | |
63 | } | |
64 | ||
65 | static inline void smc_outw(unsigned int val, unsigned int addr) | |
66 | { | |
67 | *((volatile unsigned short *) addr) = (val << 8) | (val >> 8); | |
68 | } | |
69 | ||
70 | static inline int smc_inw(unsigned int addr) | |
71 | { | |
72 | register unsigned short w; | |
73 | w = *((volatile unsigned short *) addr); | |
74 | return(((w << 8) | (w >> 8)) & 0xffff); | |
75 | } | |
76 | ||
77 | static inline void smc_outl(unsigned long val, unsigned int addr) | |
78 | { | |
79 | *((volatile unsigned long *) addr) = | |
80 | ((val << 8) & 0xff000000) | ((val >> 8) & 0x00ff0000) | | |
81 | ((val << 8) & 0x0000ff00) | ((val >> 8) & 0x000000ff); | |
82 | } | |
83 | ||
84 | static inline void smc_outwd(unsigned int val, unsigned int addr) | |
85 | { | |
86 | *((volatile unsigned short *) addr) = val; | |
87 | } | |
88 | ||
89 | ||
90 | /* | |
91 | * The rep* functions are used to feed the data port with | |
92 | * raw data. So we do not byte swap them when copying. | |
93 | */ | |
94 | ||
95 | static inline void smc_insb(unsigned int addr, void *vbuf, int unsigned long len) | |
96 | { | |
97 | volatile unsigned short *rp; | |
98 | unsigned short *buf, *ebuf; | |
99 | ||
100 | buf = (unsigned short *) vbuf; | |
101 | rp = (volatile unsigned short *) addr; | |
102 | ||
103 | /* Copy as words for as long as possible */ | |
104 | for (ebuf = buf + (len >> 1); (buf < ebuf); ) | |
105 | *buf++ = *rp; | |
106 | ||
107 | /* Lastly, handle left over byte */ | |
108 | if (len & 0x1) | |
109 | *((unsigned char *) buf) = (*rp >> 8) & 0xff; | |
110 | } | |
111 | ||
112 | static inline void smc_insw(unsigned int addr, void *vbuf, unsigned long len) | |
113 | { | |
114 | volatile unsigned short *rp; | |
115 | unsigned short *buf, *ebuf; | |
116 | ||
117 | buf = (unsigned short *) vbuf; | |
118 | rp = (volatile unsigned short *) addr; | |
119 | for (ebuf = buf + len; (buf < ebuf); ) | |
120 | *buf++ = *rp; | |
121 | } | |
122 | ||
123 | static inline void smc_insl(unsigned int addr, void *vbuf, unsigned long len) | |
124 | { | |
125 | volatile unsigned long *rp; | |
126 | unsigned long *buf, *ebuf; | |
127 | ||
128 | buf = (unsigned long *) vbuf; | |
129 | rp = (volatile unsigned long *) addr; | |
130 | for (ebuf = buf + len; (buf < ebuf); ) | |
131 | *buf++ = *rp; | |
132 | } | |
133 | ||
134 | static inline void smc_outsw(unsigned int addr, const void *vbuf, unsigned long len) | |
135 | { | |
136 | volatile unsigned short *rp; | |
137 | unsigned short *buf, *ebuf; | |
138 | ||
139 | buf = (unsigned short *) vbuf; | |
140 | rp = (volatile unsigned short *) addr; | |
141 | for (ebuf = buf + len; (buf < ebuf); ) | |
142 | *rp = *buf++; | |
143 | } | |
144 | ||
145 | static inline void smc_outsl(unsigned int addr, void *vbuf, unsigned long len) | |
146 | { | |
147 | volatile unsigned long *rp; | |
148 | unsigned long *buf, *ebuf; | |
149 | ||
150 | buf = (unsigned long *) vbuf; | |
151 | rp = (volatile unsigned long *) addr; | |
152 | for (ebuf = buf + len; (buf < ebuf); ) | |
153 | *rp = *buf++; | |
154 | } | |
155 | ||
156 | ||
157 | #ifdef CONFIG_NETtel | |
158 | /* | |
159 | * Re-map the address space of at least one of the SMC ethernet | |
160 | * parts. Both parts power up decoding the same address, so we | |
161 | * need to move one of them first, before doing enything else. | |
162 | * | |
163 | * We also increase the number of wait states for this part by one. | |
164 | */ | |
165 | ||
166 | void smc_remap(unsigned int ioaddr) | |
167 | { | |
168 | static int once = 0; | |
169 | extern unsigned short ppdata; | |
170 | if (once++ == 0) { | |
171 | *((volatile unsigned short *)(MCF_MBAR+MCFSIM_PADDR)) = 0x00ec; | |
172 | ppdata |= 0x0080; | |
173 | *((volatile unsigned short *)(MCF_MBAR+MCFSIM_PADAT)) = ppdata; | |
174 | outw(0x0001, ioaddr + BANK_SELECT); | |
175 | outw(0x0001, ioaddr + BANK_SELECT); | |
176 | outw(0x0067, ioaddr + BASE); | |
177 | ||
178 | ppdata &= ~0x0080; | |
179 | *((volatile unsigned short *)(MCF_MBAR+MCFSIM_PADAT)) = ppdata; | |
180 | } | |
181 | ||
182 | *((volatile unsigned short *)(MCF_MBAR+MCFSIM_CSCR3)) = 0x1180; | |
183 | } | |
184 | ||
185 | #endif | |
186 | ||
187 | /****************************************************************************/ | |
188 | #endif /* mcfsmc_h */ |