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Commit a2ca78ce authored by Mike Frysinger's avatar Mike Frysinger
Browse files

Blackfin: check for anomaly 05000475 



Parts that have on-chip L2 SRAM cannot safely utilize writeback caching
mode, so reject any attempts to use it.

Signed-off-by: default avatarMike Frysinger <vapier@gentoo.org>
parent f99e8c1d

arch/blackfin/mach-common/arch_checks.c

+5 −0
Original line number Diff line number Diff line
@@ -57,3 +57,8 @@ 
	 (!defined(CONFIG_BFIN_EXTMEM_DCACHEABLE) && defined(CONFIG_BFIN_L2_WRITEBACK)))

# error You are exposing Anomaly 220 in this config, either config L2 as Write Through, or make External Memory WB.

#endif



#if ANOMALY_05000475 && \

	(defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK))

# error "Anomaly 475 does not allow you to use Write Back cache with L2 or External Memory"

#endif