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Blackfin: update handling of anomaly 364 (wrong rev id in BF527-0.1)
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>
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1 changed files with 7 additions and 14 deletions
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@ -105,23 +105,16 @@ static inline uint32_t __pure bfin_revid(void)
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/* Always use CHIPID, to work around ANOMALY_05000234 */
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uint32_t revid = (bfin_read_CHIPID() & CHIPID_VERSION) >> 28;
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#ifdef CONFIG_BF52x
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/* ANOMALY_05000357
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#ifdef _BOOTROM_GET_DXE_ADDRESS_TWI
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/*
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* ANOMALY_05000364
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* Incorrect Revision Number in DSPID Register
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*/
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if (revid == 0)
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switch (bfin_read16(_BOOTROM_GET_DXE_ADDRESS_TWI)) {
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case 0x0010:
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revid = 0;
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break;
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case 0x2796:
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revid = 1;
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break;
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default:
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revid = 0xFFFF;
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break;
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}
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if (ANOMALY_05000364 &&
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bfin_read16(_BOOTROM_GET_DXE_ADDRESS_TWI) == 0x2796)
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revid = 1;
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#endif
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return revid;
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}
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