powerpc/p4080: Add workaround for erratum CPU22
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index 89f283a..84a1e2e 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -495,6 +495,7 @@
#define L1CSR1_ICFI 0x00000002 /* Instruction Cache Flash Invalidate */
#define L1CSR1_ICE 0x00000001 /* Instruction Cache Enable */
#define SPRN_L1CSR2 0x25e /* L1 Data Cache Control and Status Register 2 */
+#define L1CSR2_DCWS 0x40000000 /* Data Cache Write Shadow */
#define SPRN_L2CSR0 0x3f9 /* L2 Data Cache Control and Status Register 0 */
#define L2CSR0_L2E 0x80000000 /* L2 Cache Enable */
#define L2CSR0_L2PE 0x40000000 /* L2 Cache Parity/ECC Enable */
