fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-m68knommu / mcfsmc.h
blob2d7a4dbd96832a735f2a1300c67aab7181826782
1 /****************************************************************************/
3 /*
4 * mcfsmc.h -- SMC ethernet support for ColdFire environments.
6 * (C) Copyright 1999-2002, Greg Ungerer (gerg@snapgear.com)
7 * (C) Copyright 2000, Lineo Inc. (www.lineo.com)
8 */
10 /****************************************************************************/
11 #ifndef mcfsmc_h
12 #define mcfsmc_h
13 /****************************************************************************/
16 * None of the current ColdFire targets that use the SMC91x111
17 * allow 8 bit accesses. So this code is 16bit access only.
21 #undef outb
22 #undef inb
23 #undef outw
24 #undef outwd
25 #undef inw
26 #undef outl
27 #undef inl
29 #undef outsb
30 #undef outsw
31 #undef outsl
32 #undef insb
33 #undef insw
34 #undef insl
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.
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
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
57 static inline int smc_inb(unsigned int addr)
59 register unsigned short w;
60 w = *((volatile unsigned short *) (addr & ~0x1));
61 return(((addr & 0x1) ? w : (w >> 8)) & 0xff);
64 static inline void smc_outw(unsigned int val, unsigned int addr)
66 *((volatile unsigned short *) addr) = (val << 8) | (val >> 8);
69 static inline int smc_inw(unsigned int addr)
71 register unsigned short w;
72 w = *((volatile unsigned short *) addr);
73 return(((w << 8) | (w >> 8)) & 0xffff);
76 static inline void smc_outl(unsigned long val, unsigned int addr)
78 *((volatile unsigned long *) addr) =
79 ((val << 8) & 0xff000000) | ((val >> 8) & 0x00ff0000) |
80 ((val << 8) & 0x0000ff00) | ((val >> 8) & 0x000000ff);
83 static inline void smc_outwd(unsigned int val, unsigned int addr)
85 *((volatile unsigned short *) addr) = val;
90 * The rep* functions are used to feed the data port with
91 * raw data. So we do not byte swap them when copying.
94 static inline void smc_insb(unsigned int addr, void *vbuf, int unsigned long len)
96 volatile unsigned short *rp;
97 unsigned short *buf, *ebuf;
99 buf = (unsigned short *) vbuf;
100 rp = (volatile unsigned short *) addr;
102 /* Copy as words for as long as possible */
103 for (ebuf = buf + (len >> 1); (buf < ebuf); )
104 *buf++ = *rp;
106 /* Lastly, handle left over byte */
107 if (len & 0x1)
108 *((unsigned char *) buf) = (*rp >> 8) & 0xff;
111 static inline void smc_insw(unsigned int addr, void *vbuf, unsigned long len)
113 volatile unsigned short *rp;
114 unsigned short *buf, *ebuf;
116 buf = (unsigned short *) vbuf;
117 rp = (volatile unsigned short *) addr;
118 for (ebuf = buf + len; (buf < ebuf); )
119 *buf++ = *rp;
122 static inline void smc_insl(unsigned int addr, void *vbuf, unsigned long len)
124 volatile unsigned long *rp;
125 unsigned long *buf, *ebuf;
127 buf = (unsigned long *) vbuf;
128 rp = (volatile unsigned long *) addr;
129 for (ebuf = buf + len; (buf < ebuf); )
130 *buf++ = *rp;
133 static inline void smc_outsw(unsigned int addr, const void *vbuf, unsigned long len)
135 volatile unsigned short *rp;
136 unsigned short *buf, *ebuf;
138 buf = (unsigned short *) vbuf;
139 rp = (volatile unsigned short *) addr;
140 for (ebuf = buf + len; (buf < ebuf); )
141 *rp = *buf++;
144 static inline void smc_outsl(unsigned int addr, void *vbuf, unsigned long len)
146 volatile unsigned long *rp;
147 unsigned long *buf, *ebuf;
149 buf = (unsigned long *) vbuf;
150 rp = (volatile unsigned long *) addr;
151 for (ebuf = buf + len; (buf < ebuf); )
152 *rp = *buf++;
156 #ifdef CONFIG_NETtel
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.
162 * We also increase the number of wait states for this part by one.
165 void smc_remap(unsigned int ioaddr)
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);
177 ppdata &= ~0x0080;
178 *((volatile unsigned short *)(MCF_MBAR+MCFSIM_PADAT)) = ppdata;
181 *((volatile unsigned short *)(MCF_MBAR+MCFSIM_CSCR3)) = 0x1180;
184 #endif
186 /****************************************************************************/
187 #endif /* mcfsmc_h */