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Fixes

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- switch to volatile everywhere
 - use myusec_delay instead of usleep

Corresponding to coreboot v1 svn r492.
This commit is contained in:
Ronald G. Minnich
2002-01-29 20:18:02 +00:00
parent f4cf2baec9
commit ef5779d1dd
8 changed files with 137 additions and 88 deletions
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20
jedec.h
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@ -2,7 +2,7 @@ extern int probe_jedec (struct flashchip * flash);
extern int erase_jedec (struct flashchip * flash);
extern int write_jedec (struct flashchip * flash, char * buf);
extern __inline__ void toggle_ready_jedec (char * dst)
extern __inline__ void toggle_ready_jedec (volatile char * dst)
{
unsigned int i = 0;
char tmp1, tmp2;
@ -18,7 +18,7 @@ extern __inline__ void toggle_ready_jedec (char * dst)
}
}
extern __inline__ void data_polling_jedec (char * dst, char data)
extern __inline__ void data_polling_jedec (volatile char * dst, char data)
{
unsigned int i = 0;
char tmp;
@ -33,23 +33,23 @@ extern __inline__ void data_polling_jedec (char * dst, char data)
}
}
extern __inline__ void protect_jedec (char * bios)
extern __inline__ void protect_jedec (volatile char * bios)
{
*(char *) (bios + 0x5555) = 0xAA;
*(char *) (bios + 0x2AAA) = 0x55;
*(char *) (bios + 0x5555) = 0xA0;
*(volatile char *) (bios + 0x5555) = 0xAA;
*(volatile char *) (bios + 0x2AAA) = 0x55;
*(volatile char *) (bios + 0x5555) = 0xA0;
usleep(200);
}
extern __inline__ void write_page_jedec (char * bios, char * src, char * dst,
extern __inline__ void write_page_jedec (volatile char * bios, char * src, volatile char * dst,
int page_size)
{
int i;
*(char *) (bios + 0x5555) = 0xAA;
*(char *) (bios + 0x2AAA) = 0x55;
*(char *) (bios + 0x5555) = 0xA0;
*(volatile char *) (bios + 0x5555) = 0xAA;
*(volatile char *) (bios + 0x2AAA) = 0x55;
*(volatile char *) (bios + 0x5555) = 0xA0;
for (i = 0; i < page_size; i++) {
/* transfer data from source to destination */