#define SST_CSR_S0IOCS         (0x1 << 21)
 #define SST_CSR_S1IOCS         (0x1 << 23)
 #define SST_CSR_LPCS           (0x1 << 31)
+#define SST_CSR_24MHZ_LPCS     (SST_CSR_SBCS0 | SST_CSR_SBCS1 | SST_CSR_LPCS)
+#define SST_CSR_24MHZ_NO_LPCS  (SST_CSR_SBCS0 | SST_CSR_SBCS1)
 #define SST_BYT_CSR_RST                (0x1 << 0)
 #define SST_BYT_CSR_VECTOR_SEL (0x1 << 1)
 #define SST_BYT_CSR_STALL      (0x1 << 2)
 #define SST_IMRX_DONE          (0x1 << 0)
 #define SST_BYT_IMRX_REQUEST   (0x1 << 1)
 
+/* IMRD / IMD */
+#define SST_IMRD_DONE          (0x1 << 0)
+#define SST_IMRD_BUSY          (0x1 << 1)
+#define SST_IMRD_SSP0          (0x1 << 16)
+#define SST_IMRD_DMAC0         (0x1 << 21)
+#define SST_IMRD_DMAC1         (0x1 << 22)
+#define SST_IMRD_DMAC          (SST_IMRD_DMAC0 | SST_IMRD_DMAC1)
+
 /*  IPCX / IPCC */
 #define        SST_IPCX_DONE           (0x1 << 30)
 #define        SST_IPCX_BUSY           (0x1 << 31)
 /* HMDC */
 #define SST_HMDC_HDDA0(x)      (x << 0)
 #define SST_HMDC_HDDA1(x)      (x << 7)
+#define SST_HMDC_HDDA_E0_CH0   1
+#define SST_HMDC_HDDA_E0_CH1   2
+#define SST_HMDC_HDDA_E0_CH2   4
+#define SST_HMDC_HDDA_E0_CH3   8
+#define SST_HMDC_HDDA_E1_CH0   SST_HMDC_HDDA1(SST_HMDC_HDDA_E0_CH0)
+#define SST_HMDC_HDDA_E1_CH1   SST_HMDC_HDDA1(SST_HMDC_HDDA_E0_CH1)
+#define SST_HMDC_HDDA_E1_CH2   SST_HMDC_HDDA1(SST_HMDC_HDDA_E0_CH2)
+#define SST_HMDC_HDDA_E1_CH3   SST_HMDC_HDDA1(SST_HMDC_HDDA_E0_CH3)
+#define SST_HMDC_HDDA_E0_ALLCH (SST_HMDC_HDDA_E0_CH0 | SST_HMDC_HDDA_E0_CH1 | \
+                                SST_HMDC_HDDA_E0_CH2 | SST_HMDC_HDDA_E0_CH3)
+#define SST_HMDC_HDDA_E1_ALLCH (SST_HMDC_HDDA_E1_CH0 | SST_HMDC_HDDA_E1_CH1 | \
+                                SST_HMDC_HDDA_E1_CH2 | SST_HMDC_HDDA_E1_CH3)
 
 
 /* SST Vendor Defined Registers and bits */
 #define SST_VDRTCTL3           0xaC
 
 /* VDRTCTL0 */
+#define SST_VDRTCL0_APLLSE_MASK                1
 #define SST_VDRTCL0_DSRAMPGE_SHIFT     16
 #define SST_VDRTCL0_DSRAMPGE_MASK      (0xffff << SST_VDRTCL0_DSRAMPGE_SHIFT)
 #define SST_VDRTCL0_ISRAMPGE_SHIFT     6
 #define SST_VDRTCL0_ISRAMPGE_MASK      (0x3ff << SST_VDRTCL0_ISRAMPGE_SHIFT)
 
+/* PMCS */
+#define SST_PMCS               0x84
+#define SST_PMCS_PS_MASK       0x3
+
 struct sst_dsp;
 
 /*