diff --git a/exosphere/lp0fw/src/car.h b/exosphere/lp0fw/src/car.h
index 9174b4598..31b73ef80 100644
--- a/exosphere/lp0fw/src/car.h
+++ b/exosphere/lp0fw/src/car.h
@@ -33,6 +33,9 @@
 #define CLK_RST_CONTROLLER_SUPER_CCLKG_DIVIDER_0 MAKE_CAR_REG(0x36C)
 #define CLK_RST_CONTROLLER_SUPER_CCLKP_DIVIDER_0 MAKE_CAR_REG(0x374)
 
+#define CLK_RST_CONTROLLER_CLK_SOURCE_DVFS_REF_0 MAKE_CAR_REG(0x62C)
+#define CLK_RST_CONTROLLER_CLK_SOURCE_DVFS_SOC_0 MAKE_CAR_REG(0x630)
+
 #define CLK_RST_CONTROLLER_CPU_SOFTRST_CTRL2_0 MAKE_CAR_REG(0x388)
 #define CLK_RST_CONTROLLER_CLK_SOURCE_MSELECT_0 MAKE_CAR_REG(0x3B4)
 
@@ -46,11 +49,13 @@
 
 #define CLK_RST_CONTROLLER_SPARE_REG0_0 MAKE_CAR_REG(0x55C)
 
+#define CLK_RST_CONTROLLER_RST_DEV_H_SET_0 MAKE_CAR_REG(0x308)
 #define CLK_RST_CONTROLLER_RST_DEV_U_SET_0 MAKE_CAR_REG(0x310)
 
 #define CLK_RST_CONTROLLER_RST_DEV_U_CLR_0 MAKE_CAR_REG(0x314)
 #define CLK_RST_CONTROLLER_RST_DEV_V_CLR_0 MAKE_CAR_REG(0x434)
 
+#define CLK_RST_CONTROLLER_CLK_ENB_H_SET_0 MAKE_CAR_REG(0x328)
 #define CLK_RST_CONTROLLER_CLK_ENB_U_SET_0 MAKE_CAR_REG(0x330)
 #define CLK_RST_CONTROLLER_CLK_ENB_V_SET_0 MAKE_CAR_REG(0x440)
 #define CLK_RST_CONTROLLER_CLK_ENB_W_SET_0 MAKE_CAR_REG(0x448)
diff --git a/exosphere/lp0fw/src/cluster.c b/exosphere/lp0fw/src/cluster.c
index 26b1bda0b..4fd6ea039 100644
--- a/exosphere/lp0fw/src/cluster.c
+++ b/exosphere/lp0fw/src/cluster.c
@@ -61,6 +61,29 @@ void cluster_initialize_cpu(void) {
     APBDEV_PMC_DPD_SAMPLE_0 = 0;
     timer_wait(10);
     
+    /* Configure UART2 via GPIO controller 2 G. */
+    MAKE_REG32(0x6000D108) |= 4;  /* GPIO_CNF */
+    MAKE_REG32(0x6000D118) |= 4;  /* GPIO_OE */
+    MAKE_REG32(0x6000D128) &= ~4; /* GPIO_OUT */
+    
+    /* Set CL_DVFS RSVD0 + TRISTATE, read register to make it stick. */
+    PINMUX_AUX_DVFS_PWM_0 = 0x11;
+    (void)PINMUX_AUX_DVFS_PWM_0;
+    
+    /* Configure I2C. */
+    PINMUX_AUX_PWR_I2C_SCL_0 = 0x40;
+    PINMUX_AUX_PWR_I2C_SDA_0 = 0x40;
+    
+    /* Enable clock to CL_DVFS, and set its source/divider. */
+    CLK_RST_CONTROLLER_CLK_ENB_W_SET_0 = 0x08000000;
+    CLK_RST_CONTROLLER_CLK_SOURCE_DVFS_REF_0 = 0xE;
+    CLK_RST_CONTROLLER_CLK_SOURCE_DVFS_SOC_0 = 0xE;
+    
+    /* Power on I2C5, wait 5 us. */
+    CLK_RST_CONTROLLER_CLK_ENB_H_SET_0 = 0x8000;
+    CLK_RST_CONTROLLER_RST_DEV_H_SET_0 = 0x8000;
+    timer_wait(5);
+    
     /* TODO: This function is enormous */
 }
 
diff --git a/exosphere/lp0fw/src/misc.h b/exosphere/lp0fw/src/misc.h
index a4f7c2b66..6fe93d520 100644
--- a/exosphere/lp0fw/src/misc.h
+++ b/exosphere/lp0fw/src/misc.h
@@ -29,6 +29,10 @@
 
 #define APB_MISC_GP_ASDBGREG_0 MAKE_MISC_REG(0x810)
 
+#define PINMUX_AUX_PWR_I2C_SCL_0 MAKE_MISC_REG(0x30DC)
+#define PINMUX_AUX_PWR_I2C_SDA_0 MAKE_MISC_REG(0x30E0)
+#define PINMUX_AUX_DVFS_PWM_0    MAKE_MISC_REG(0x3184)
+
 #define PINMUX_AUX_GPIO_PA6_0 MAKE_MISC_REG(0x3244)
 
 void misc_configure_device_dbg_settings(void);