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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 | ||
1da177e4 LT |
20 | |
21 | #undef outb | |
22 | #undef inb | |
23 | #undef outw | |
24 | #undef outwd | |
25 | #undef inw | |
26 | #undef outl | |
27 | #undef inl | |
28 | ||
29 | #undef outsb | |
30 | #undef outsw | |
31 | #undef outsl | |
32 | #undef insb | |
33 | #undef insw | |
34 | #undef insl | |
35 | ||
36 | /* | |
37 | * Re-defines for ColdFire environment... The SMC part is | |
38 | * mapped into memory space, so remap the PC-style in/out | |
39 | * routines to handle that. | |
40 | */ | |
41 | #define outb smc_outb | |
42 | #define inb smc_inb | |
43 | #define outw smc_outw | |
44 | #define outwd smc_outwd | |
45 | #define inw smc_inw | |
46 | #define outl smc_outl | |
47 | #define inl smc_inl | |
48 | ||
49 | #define outsb smc_outsb | |
50 | #define outsw smc_outsw | |
51 | #define outsl smc_outsl | |
52 | #define insb smc_insb | |
53 | #define insw smc_insw | |
54 | #define insl smc_insl | |
55 | ||
56 | ||
57 | static inline int smc_inb(unsigned int addr) | |
58 | { | |
59 | register unsigned short w; | |
60 | w = *((volatile unsigned short *) (addr & ~0x1)); | |
61 | return(((addr & 0x1) ? w : (w >> 8)) & 0xff); | |
62 | } | |
63 | ||
64 | static inline void smc_outw(unsigned int val, unsigned int addr) | |
65 | { | |
66 | *((volatile unsigned short *) addr) = (val << 8) | (val >> 8); | |
67 | } | |
68 | ||
69 | static inline int smc_inw(unsigned int addr) | |
70 | { | |
71 | register unsigned short w; | |
72 | w = *((volatile unsigned short *) addr); | |
73 | return(((w << 8) | (w >> 8)) & 0xffff); | |
74 | } | |
75 | ||
76 | static inline void smc_outl(unsigned long val, unsigned int addr) | |
77 | { | |
78 | *((volatile unsigned long *) addr) = | |
79 | ((val << 8) & 0xff000000) | ((val >> 8) & 0x00ff0000) | | |
80 | ((val << 8) & 0x0000ff00) | ((val >> 8) & 0x000000ff); | |
81 | } | |
82 | ||
83 | static inline void smc_outwd(unsigned int val, unsigned int addr) | |
84 | { | |
85 | *((volatile unsigned short *) addr) = val; | |
86 | } | |
87 | ||
88 | ||
89 | /* | |
90 | * The rep* functions are used to feed the data port with | |
91 | * raw data. So we do not byte swap them when copying. | |
92 | */ | |
93 | ||
94 | static inline void smc_insb(unsigned int addr, void *vbuf, int unsigned long len) | |
95 | { | |
96 | volatile unsigned short *rp; | |
97 | unsigned short *buf, *ebuf; | |
98 | ||
99 | buf = (unsigned short *) vbuf; | |
100 | rp = (volatile unsigned short *) addr; | |
101 | ||
102 | /* Copy as words for as long as possible */ | |
103 | for (ebuf = buf + (len >> 1); (buf < ebuf); ) | |
104 | *buf++ = *rp; | |
105 | ||
106 | /* Lastly, handle left over byte */ | |
107 | if (len & 0x1) | |
108 | *((unsigned char *) buf) = (*rp >> 8) & 0xff; | |
109 | } | |
110 | ||
111 | static inline void smc_insw(unsigned int addr, void *vbuf, unsigned long len) | |
112 | { | |
113 | volatile unsigned short *rp; | |
114 | unsigned short *buf, *ebuf; | |
115 | ||
116 | buf = (unsigned short *) vbuf; | |
117 | rp = (volatile unsigned short *) addr; | |
118 | for (ebuf = buf + len; (buf < ebuf); ) | |
119 | *buf++ = *rp; | |
120 | } | |
121 | ||
122 | static inline void smc_insl(unsigned int addr, void *vbuf, unsigned long len) | |
123 | { | |
124 | volatile unsigned long *rp; | |
125 | unsigned long *buf, *ebuf; | |
126 | ||
127 | buf = (unsigned long *) vbuf; | |
128 | rp = (volatile unsigned long *) addr; | |
129 | for (ebuf = buf + len; (buf < ebuf); ) | |
130 | *buf++ = *rp; | |
131 | } | |
132 | ||
133 | static inline void smc_outsw(unsigned int addr, const void *vbuf, unsigned long len) | |
134 | { | |
135 | volatile unsigned short *rp; | |
136 | unsigned short *buf, *ebuf; | |
137 | ||
138 | buf = (unsigned short *) vbuf; | |
139 | rp = (volatile unsigned short *) addr; | |
140 | for (ebuf = buf + len; (buf < ebuf); ) | |
141 | *rp = *buf++; | |
142 | } | |
143 | ||
144 | static inline void smc_outsl(unsigned int addr, void *vbuf, unsigned long len) | |
145 | { | |
146 | volatile unsigned long *rp; | |
147 | unsigned long *buf, *ebuf; | |
148 | ||
149 | buf = (unsigned long *) vbuf; | |
150 | rp = (volatile unsigned long *) addr; | |
151 | for (ebuf = buf + len; (buf < ebuf); ) | |
152 | *rp = *buf++; | |
153 | } | |
154 | ||
155 | ||
156 | #ifdef CONFIG_NETtel | |
157 | /* | |
158 | * Re-map the address space of at least one of the SMC ethernet | |
159 | * parts. Both parts power up decoding the same address, so we | |
160 | * need to move one of them first, before doing enything else. | |
161 | * | |
162 | * We also increase the number of wait states for this part by one. | |
163 | */ | |
164 | ||
165 | void smc_remap(unsigned int ioaddr) | |
166 | { | |
167 | static int once = 0; | |
168 | extern unsigned short ppdata; | |
169 | if (once++ == 0) { | |
170 | *((volatile unsigned short *)(MCF_MBAR+MCFSIM_PADDR)) = 0x00ec; | |
171 | ppdata |= 0x0080; | |
172 | *((volatile unsigned short *)(MCF_MBAR+MCFSIM_PADAT)) = ppdata; | |
173 | outw(0x0001, ioaddr + BANK_SELECT); | |
174 | outw(0x0001, ioaddr + BANK_SELECT); | |
175 | outw(0x0067, ioaddr + BASE); | |
176 | ||
177 | ppdata &= ~0x0080; | |
178 | *((volatile unsigned short *)(MCF_MBAR+MCFSIM_PADAT)) = ppdata; | |
179 | } | |
180 | ||
181 | *((volatile unsigned short *)(MCF_MBAR+MCFSIM_CSCR3)) = 0x1180; | |
182 | } | |
183 | ||
184 | #endif | |
185 | ||
186 | /****************************************************************************/ | |
187 | #endif /* mcfsmc_h */ |