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>

diff --git a/arch/blackfin/include/asm/processor.h b/arch/blackfin/include/asm/processor.h
index d0be99be8308d3a9324dacae900939f384e6f1e0..a36ad8dac0681914dd067af2a6c1609d39e475c5 100644 (file)
--- a/arch/blackfin/include/asm/processor.h
+++ b/arch/blackfin/include/asm/processor.h
@@ -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;
 }