+/* LDOUSB control/voltage */
+#define LDOUSB_CTRL 0x64
+#define LDOUSB_VOLTAGE 0x65
+#define LDO_CTRL 0x6a
+
+/* Control of 32 kHz audio clock */
+#define CLK32KGAUDIO_CTRL 0xd5
+
+/* SYSEN2_CTRL for VCC_3v3_AUX supply on the sEVM */
+#define SYSEN2_CTRL 0xd9
+
+/*
+ * Bit field definitions for LDOx_CTRL, SYSENx_CTRL
+ * and some other xxx_CTRL resources:
+ */
+#define LDO9_BYP_EN (1 << 6) /* LDO9 only! */
+#define RSC_STAT_ON (1 << 4) /* RO status bit! */
+#define RSC_MODE_SLEEP (1 << 2)
+#define RSC_MODE_ACTIVE (1 << 0)
+
+/* Some LDO voltage values */
+#define LDO_VOLT_OFF 0
+#define LDO_VOLT_1V8 0x13
+#define LDO_VOLT_3V0 0x2b
+#define LDO_VOLT_3V3 0x31
+/* Request bypass, LDO9 only */
+#define LDO9_BYPASS 0x3f
+
+/* SMPS7_CTRL */
+#define SMPS7_CTRL 0x30
+
+/* SMPS9_CTRL */
+#define SMPS9_CTRL 0x38
+#define SMPS9_VOLTAGE 0x3b
+
+/* SMPS10_CTRL */
+#define SMPS10_CTRL 0x3c
+#define SMPS10_MODE_ACTIVE_D 0x0d
+
+/* Bit field definitions for SMPSx_CTRL */
+#define SMPS_MODE_ACT_AUTO 1
+#define SMPS_MODE_ACT_ECO 2
+#define SMPS_MODE_ACT_FPWM 3
+#define SMPS_MODE_SLP_AUTO (1 << 2)
+#define SMPS_MODE_SLP_ECO (2 << 2)
+#define SMPS_MODE_SLP_FPWM (3 << 2)
+
+/*
+ * Some popular SMPS voltages, all with RANGE=1; note
+ * that RANGE cannot be changed on the fly
+ */
+#define SMPS_VOLT_OFF 0
+#define SMPS_VOLT_1V2 0x90
+#define SMPS_VOLT_1V8 0xae
+#define SMPS_VOLT_2V1 0xbd
+#define SMPS_VOLT_3V0 0xea
+#define SMPS_VOLT_3V3 0xf9
+
+/* Backup Battery & VRTC Control */
+#define BB_VRTC_CTRL 0xa8
+/* Bit definitions for BB_VRTC_CTRL */
+#define VRTC_EN_SLP (1 << 6)
+#define VRTC_EN_OFF (1 << 5)
+#define VRTC_PWEN (1 << 4)
+#define BB_LOW_ICHRG (1 << 3)
+#define BB_HIGH_ICHRG (0 << 3)
+#define BB_VSEL_3V0 (0 << 1)
+#define BB_VSEL_2V5 (1 << 1)
+#define BB_VSEL_3V15 (2 << 1)
+#define BB_VSEL_VBAT (3 << 1)
+#define BB_CHRG_EN (1 << 0)