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- /****************************************************************************/
-
- /*
- * mcfsmc.h -- SMC ethernet support for ColdFire environments.
- *
- * (C) Copyright 1999-2002, Greg Ungerer (gerg@snapgear.com)
- * (C) Copyright 2000, Lineo Inc. (www.lineo.com)
- */
-
- /****************************************************************************/
- #ifndef mcfsmc_h
- #define mcfsmc_h
- /****************************************************************************/
-
- /*
- * None of the current ColdFire targets that use the SMC91x111
- * allow 8 bit accesses. So this code is 16bit access only.
- */
-
-
- #undef outb
- #undef inb
- #undef outw
- #undef outwd
- #undef inw
- #undef outl
- #undef inl
-
- #undef outsb
- #undef outsw
- #undef outsl
- #undef insb
- #undef insw
- #undef insl
-
- /*
- * Re-defines for ColdFire environment... The SMC part is
- * mapped into memory space, so remap the PC-style in/out
- * routines to handle that.
- */
- #define outb smc_outb
- #define inb smc_inb
- #define outw smc_outw
- #define outwd smc_outwd
- #define inw smc_inw
- #define outl smc_outl
- #define inl smc_inl
-
- #define outsb smc_outsb
- #define outsw smc_outsw
- #define outsl smc_outsl
- #define insb smc_insb
- #define insw smc_insw
- #define insl smc_insl
-
-
- static inline int smc_inb(unsigned int addr)
- {
- register unsigned short w;
- w = *((volatile unsigned short *) (addr & ~0x1));
- return(((addr & 0x1) ? w : (w >> 8)) & 0xff);
- }
-
- static inline void smc_outw(unsigned int val, unsigned int addr)
- {
- *((volatile unsigned short *) addr) = (val << 8) | (val >> 8);
- }
-
- static inline int smc_inw(unsigned int addr)
- {
- register unsigned short w;
- w = *((volatile unsigned short *) addr);
- return(((w << 8) | (w >> 8)) & 0xffff);
- }
-
- static inline void smc_outl(unsigned long val, unsigned int addr)
- {
- *((volatile unsigned long *) addr) =
- ((val << 8) & 0xff000000) | ((val >> 8) & 0x00ff0000) |
- ((val << 8) & 0x0000ff00) | ((val >> 8) & 0x000000ff);
- }
-
- static inline void smc_outwd(unsigned int val, unsigned int addr)
- {
- *((volatile unsigned short *) addr) = val;
- }
-
-
- /*
- * The rep* functions are used to feed the data port with
- * raw data. So we do not byte swap them when copying.
- */
-
- static inline void smc_insb(unsigned int addr, void *vbuf, int unsigned long len)
- {
- volatile unsigned short *rp;
- unsigned short *buf, *ebuf;
-
- buf = (unsigned short *) vbuf;
- rp = (volatile unsigned short *) addr;
-
- /* Copy as words for as long as possible */
- for (ebuf = buf + (len >> 1); (buf < ebuf); )
- *buf++ = *rp;
-
- /* Lastly, handle left over byte */
- if (len & 0x1)
- *((unsigned char *) buf) = (*rp >> 8) & 0xff;
- }
-
- static inline void smc_insw(unsigned int addr, void *vbuf, unsigned long len)
- {
- volatile unsigned short *rp;
- unsigned short *buf, *ebuf;
-
- buf = (unsigned short *) vbuf;
- rp = (volatile unsigned short *) addr;
- for (ebuf = buf + len; (buf < ebuf); )
- *buf++ = *rp;
- }
-
- static inline void smc_insl(unsigned int addr, void *vbuf, unsigned long len)
- {
- volatile unsigned long *rp;
- unsigned long *buf, *ebuf;
-
- buf = (unsigned long *) vbuf;
- rp = (volatile unsigned long *) addr;
- for (ebuf = buf + len; (buf < ebuf); )
- *buf++ = *rp;
- }
-
- static inline void smc_outsw(unsigned int addr, const void *vbuf, unsigned long len)
- {
- volatile unsigned short *rp;
- unsigned short *buf, *ebuf;
-
- buf = (unsigned short *) vbuf;
- rp = (volatile unsigned short *) addr;
- for (ebuf = buf + len; (buf < ebuf); )
- *rp = *buf++;
- }
-
- static inline void smc_outsl(unsigned int addr, void *vbuf, unsigned long len)
- {
- volatile unsigned long *rp;
- unsigned long *buf, *ebuf;
-
- buf = (unsigned long *) vbuf;
- rp = (volatile unsigned long *) addr;
- for (ebuf = buf + len; (buf < ebuf); )
- *rp = *buf++;
- }
-
-
- #ifdef CONFIG_NETtel
- /*
- * Re-map the address space of at least one of the SMC ethernet
- * parts. Both parts power up decoding the same address, so we
- * need to move one of them first, before doing enything else.
- *
- * We also increase the number of wait states for this part by one.
- */
-
- void smc_remap(unsigned int ioaddr)
- {
- static int once = 0;
- extern unsigned short ppdata;
- if (once++ == 0) {
- *((volatile unsigned short *)(MCF_MBAR+MCFSIM_PADDR)) = 0x00ec;
- ppdata |= 0x0080;
- *((volatile unsigned short *)(MCF_MBAR+MCFSIM_PADAT)) = ppdata;
- outw(0x0001, ioaddr + BANK_SELECT);
- outw(0x0001, ioaddr + BANK_SELECT);
- outw(0x0067, ioaddr + BASE);
-
- ppdata &= ~0x0080;
- *((volatile unsigned short *)(MCF_MBAR+MCFSIM_PADAT)) = ppdata;
- }
-
- *((volatile unsigned short *)(MCF_MBAR+MCFSIM_CSCR3)) = 0x1180;
- }
-
- #endif
-
- /****************************************************************************/
- #endif /* mcfsmc_h */
-