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authorStefan Agner <stefan.agner@toradex.com>2017-03-02 13:45:10 -0800
committerStefan Agner <stefan.agner@toradex.com>2017-03-21 13:45:30 -0700
commitcedf55d098b4b0af2815c92ee40576a4c899fcfb (patch)
tree8eec804c7ce3e885f22011b32384e342cfe139fb
parentc77a50386f672d6846df1a20295129fb66044779 (diff)
colibri_imx7: setup PMIC sleep mode configuration
Disable 3.3V Ethernet and ARM rail when entering sleep mode. Signed-off-by: Stefan Agner <stefan.agner@toradex.com> Acked-by: Max Krummenacher <max.krummenacher@toradex.com>
-rw-r--r--board/toradex/colibri_imx7/colibri_imx7.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/board/toradex/colibri_imx7/colibri_imx7.c b/board/toradex/colibri_imx7/colibri_imx7.c
index 7ac376e4e31..9f831671e04 100644
--- a/board/toradex/colibri_imx7/colibri_imx7.c
+++ b/board/toradex/colibri_imx7/colibri_imx7.c
@@ -372,6 +372,22 @@ int power_init_board(void)
/* set judge and press timer of N_OE to minimal values */
pmic_clrsetbits(dev, RN5T567_NOETIMSETCNT, 0x7, 0);
+ /* configure sleep slot for 3.3V Ethernet */
+ reg = pmic_reg_read(dev, RN5T567_LDO1_SLOT);
+ reg = (reg & 0xf0) | reg >> 4;
+ pmic_reg_write(dev, RN5T567_LDO1_SLOT, reg);
+
+ /* disable DCDC2 discharge to avoid backfeeding through VFB2 */
+ pmic_clrsetbits(dev, RN5T567_DC2CTL, 0x2, 0);
+
+ /* configure sleep slot for ARM rail */
+ reg = pmic_reg_read(dev, RN5T567_DC2_SLOT);
+ reg = (reg & 0xf0) | reg >> 4;
+ pmic_reg_write(dev, RN5T567_DC2_SLOT, reg);
+
+ /* disable LDO2 discharge to avoid backfeeding from +V3.3_SD */
+ pmic_clrsetbits(dev, RN5T567_LDODIS1, 0x2, 0);
+
return 0;
}