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Commit 10a5ecd0 authored by Graf Yang's avatar Graf Yang Committed by Mike Frysinger
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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: default avatarGraf Yang <graf.yang@analog.com>
Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
parent 532f07ca

arch/blackfin/include/asm/processor.h

+7 −14
Original line number Diff line number Diff line
@@ -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:

	if (ANOMALY_05000364 &&

	    bfin_read16(_BOOTROM_GET_DXE_ADDRESS_TWI) == 0x2796)

		revid = 1;

			break;

		default:

			revid = 0xFFFF;

			break;

		}

#endif



	return revid;

}