From: Robin Getz Date: Fri, 9 Jul 2010 17:29:26 +0000 (+0000) Subject: Blackfin: workaround anomaly 05000481 (corruption with ITEST MMRs) X-Git-Tag: firefly_0821_release~7613^2~3674^2~25 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c0ab9387456d7660dead96ce1b5463741f087db1;p=firefly-linux-kernel-4.4.55.git Blackfin: workaround anomaly 05000481 (corruption with ITEST MMRs) Nothing actually needs to use these MMRs (as direct cache manipulation is done with the DTEST MMRs), so simply hide the read funcs behind the anomaly define. They're generally unusable anyways when this anomaly is in effect. Signed-off-by: Robin Getz Signed-off-by: Mike Frysinger --- diff --git a/arch/blackfin/include/asm/cdef_LPBlackfin.h b/arch/blackfin/include/asm/cdef_LPBlackfin.h index 6c39d94b44d0..a1f6817687e8 100644 --- a/arch/blackfin/include/asm/cdef_LPBlackfin.h +++ b/arch/blackfin/include/asm/cdef_LPBlackfin.h @@ -172,16 +172,19 @@ #define bfin_write_ICPLB_DATA14(val) bfin_write32(ICPLB_DATA14,val) #define bfin_read_ICPLB_DATA15() bfin_read32(ICPLB_DATA15) #define bfin_write_ICPLB_DATA15(val) bfin_write32(ICPLB_DATA15,val) -#define bfin_read_ITEST_COMMAND() bfin_read32(ITEST_COMMAND) #define bfin_write_ITEST_COMMAND(val) bfin_write32(ITEST_COMMAND,val) #if 0 #define ITEST_INDEX 0xFFE01304 /* Instruction Test Index Register */ #endif -#define bfin_read_ITEST_DATA0() bfin_read32(ITEST_DATA0) #define bfin_write_ITEST_DATA0(val) bfin_write32(ITEST_DATA0,val) -#define bfin_read_ITEST_DATA1() bfin_read32(ITEST_DATA1) #define bfin_write_ITEST_DATA1(val) bfin_write32(ITEST_DATA1,val) +#if ANOMALY_05000481 +#define bfin_read_ITEST_COMMAND() bfin_read32(ITEST_COMMAND) +#define bfin_read_ITEST_DATA0() bfin_read32(ITEST_DATA0) +#define bfin_read_ITEST_DATA1() bfin_read32(ITEST_DATA1) +#endif + /* Event/Interrupt Registers*/ #define bfin_read_EVT0() bfin_read32(EVT0)