1 files changed, 17 insertions, 0 deletions

diff --git a/arch/powerpc/boot/dcr.h b/arch/powerpc/boot/dcr.h
index f6b793573b96..55655f78505a 100644
--- a/arch/powerpc/boot/dcr.h
+++ b/arch/powerpc/boot/dcr.h
@@ -160,6 +160,23 @@ static const unsigned long sdram_bxcr[] = { SDRAM0_B0CR, SDRAM0_B1CR,
 #define DCRN_CPR0_PERD                                  0x0e0
 #define DCRN_CPR0_MALD                                  0x100
 
+#define DCRN_SDR0_CONFIG_ADDR   0xe
+#define DCRN_SDR0_CONFIG_DATA   0xf
+
+/* SDR read/write helper macros */
+#define SDR0_READ(offset) ({\
+        mtdcr(DCRN_SDR0_CONFIG_ADDR, offset); \
+        mfdcr(DCRN_SDR0_CONFIG_DATA); })
+#define SDR0_WRITE(offset, data) ({\
+        mtdcr(DCRN_SDR0_CONFIG_ADDR, offset); \
+        mtdcr(DCRN_SDR0_CONFIG_DATA, data); })
+
+#define DCRN_SDR0_UART0         0x0120
+#define DCRN_SDR0_UART1         0x0121
+#define DCRN_SDR0_UART2         0x0122
+#define DCRN_SDR0_UART3         0x0123
+
+
 /* CPRs read/write helper macros - based off include/asm-ppc/ibm44x.h */
 
 #define DCRN_CPR0_CFGADDR                               0xc