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Blackfin: update handling of anomaly 364 (wrong rev id in BF527-0.1)

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This anomaly only applies to the BF527-0.1, not the BF526-0.1, and not any
other revision of the BF527.  So make sure we don't go returning 0xffff
for other cases.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Graf Yang 2009-07-01 04:08:01 +00:00 committed by Mike Frysinger
parent 532f07ca04
commit 10a5ecd03f
1 changed files with 7 additions and 14 deletions
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21
arch/blackfin/include/asm/processor.h
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@ -105,23 +105,16 @@ static inline uint32_t __pure bfin_revid(void)
/* Always use CHIPID, to work around ANOMALY_05000234 */
uint32_t revid = (bfin_read_CHIPID() & CHIPID_VERSION) >> 28;
#ifdef CONFIG_BF52x
/* ANOMALY_05000357
#ifdef _BOOTROM_GET_DXE_ADDRESS_TWI
/*
* ANOMALY_05000364
* Incorrect Revision Number in DSPID Register
*/
if (revid == 0)
switch (bfin_read16(_BOOTROM_GET_DXE_ADDRESS_TWI)) {
case 0x0010:
revid = 0;
break;
case 0x2796:
revid = 1;
break;
default:
revid = 0xFFFF;
break;
}
if (ANOMALY_05000364 &&
bfin_read16(_BOOTROM_GET_DXE_ADDRESS_TWI) == 0x2796)
revid = 1;
#endif
return revid;
}