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[/] [or1k/] [trunk/] [rc203soc/] [sw/] [uClinux/] [include/] [asm-m68knommu/] [mcfsmc.h] - Rev 1633
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/****************************************************************************/ /* * mcfsmc.h -- SMC ethernet support for ColdFire environments. * * (C) Copyright 1999, Greg Ungerer (gerg@moreton.com.au) */ /****************************************************************************/ #ifndef mcfsmc_h #define mcfsmc_h /****************************************************************************/ #include <linux/config.h> #undef outb #undef inb /* * 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 inline int smc_inb(unsigned int addr) { register unsigned short w; w = *((volatile unsigned short *) (addr & ~0x1)); return(((addr & 0x1) ? w : (w >> 8)) & 0xff); } inline void smc_outw(unsigned int val, unsigned int addr) { *((volatile unsigned short *) addr) = ((val << 8) | (val >> 8)); } inline int smc_inw(unsigned int addr) { register unsigned short w; w = *((volatile unsigned short *) addr); return(((w << 8) | (w >> 8)) & 0xffff); } 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); } 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. */ 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; } 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; } 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; } 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++; } 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. */ 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; } } #endif /****************************************************************************/ #endif /* mcfsmc_h */
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