enable battery backup capacitor

diff --git a/board/pandora/pandora.c b/board/pandora/pandora.c
index 75e4330..3d97121 100644 (file)
--- a/board/pandora/pandora.c
+++ b/board/pandora/pandora.c
@@ -78,6 +78,10 @@ int misc_init_r(void)
        writel(GPIO28, &gpio5_base->setdataout);
        writel(GPIO4, &gpio6_base->setdataout);
 
+       /* Enable battery backup capacitor (3.2V, 0.5mA charge current) */
+       twl4030_i2c_write_u8(TWL4030_CHIP_PM_RECEIVER, 0x1e,
+                            TWL4030_PM_RECEIVER_BB_CFG);
+
        dieid_num_r();
 
        return 0;