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Code Issues Releases Wiki Activity

Can now burn 82802ab

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Corresponding to coreboot v1 svn r633.
This commit is contained in:
Ronald G. Minnich
2002-09-06 16:58:14 +00:00
parent 6041bcda7a
commit 5643942750
6 changed files with 251 additions and 1 deletions
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44
82802ab.h Normal file
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@ -0,0 +1,44 @@
extern int probe_82802ab (struct flashchip * flash);
extern int erase_82802ab (struct flashchip * flash);
extern int write_82802ab (struct flashchip * flash, char * buf);
extern __inline__ void toggle_ready_82802ab (volatile char * dst)
{
unsigned int i = 0;
char tmp1, tmp2;
tmp1 = *dst & 0x40;
while (i++ < 0xFFFFFF) {
tmp2 = *dst & 0x40;
if (tmp1 == tmp2) {
break;
}
tmp1 = tmp2;
}
}
extern __inline__ void data_polling_82802ab (volatile char * dst, char data)
{
unsigned int i = 0;
char tmp;
data &= 0x80;
while (i++ < 0xFFFFFF) {
tmp = *dst & 0x80;
if (tmp == data) {
break;
}
}
}
extern __inline__ void protect_82802ab (volatile char * bios)
{
*(volatile char *) (bios + 0x5555) = 0xAA;
*(volatile char *) (bios + 0x2AAA) = 0x55;
*(volatile char *) (bios + 0x5555) = 0xA0;
usleep(200);
}