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authorPaul Kocialkowski <contact@paulk.fr>2014-10-28 18:14:23 +0100
committerAnatolij Gustschin <agust@denx.de>2014-10-31 00:29:39 +0100
commit2ed8c878eb781eb572c10789e8108f7cc2957192 (patch)
tree6b10e3a87d9b4c80580479609a93891db955cef6
parent934a529f94f653c869e750d8178b7ace62dadaf3 (diff)
downloadblackbird-obmc-uboot-2ed8c878eb781eb572c10789e8108f7cc2957192.tar.gz
blackbird-obmc-uboot-2ed8c878eb781eb572c10789e8108f7cc2957192.zip
twl4030: VMMC2 3.2V enable on MMC init
This enables the VMMC2 LDO, which powers the MMC2 device. When the device starts from MMC2, this has already been enabled by the BootROM, but when starting from peripheral boot (USB, UART), it is not the case. Signed-off-by: Paul Kocialkowski <contact@paulk.fr> Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
-rw-r--r--drivers/power/twl4030.c6
-rw-r--r--include/twl4030.h2
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/power/twl4030.c b/drivers/power/twl4030.c
index 3e50310464..e578ae6342 100644
--- a/drivers/power/twl4030.c
+++ b/drivers/power/twl4030.c
@@ -98,4 +98,10 @@ void twl4030_power_mmc_init(void)
TWL4030_PM_RECEIVER_VMMC1_VSEL_32,
TWL4030_PM_RECEIVER_VMMC1_DEV_GRP,
TWL4030_PM_RECEIVER_DEV_GRP_P1);
+
+ /* Set VMMC2 to 3.15 Volts */
+ twl4030_pmrecv_vsel_cfg(TWL4030_PM_RECEIVER_VMMC2_DEDICATED,
+ TWL4030_PM_RECEIVER_VMMC2_VSEL_32,
+ TWL4030_PM_RECEIVER_VMMC2_DEV_GRP,
+ TWL4030_PM_RECEIVER_DEV_GRP_P1);
}
diff --git a/include/twl4030.h b/include/twl4030.h
index 093c61d6db..18795a601b 100644
--- a/include/twl4030.h
+++ b/include/twl4030.h
@@ -395,6 +395,8 @@
#define TWL4030_PM_RECEIVER_VDAC_VSEL_18 0x03
#define TWL4030_PM_RECEIVER_VMMC1_VSEL_30 0x02
#define TWL4030_PM_RECEIVER_VMMC1_VSEL_32 0x03
+#define TWL4030_PM_RECEIVER_VMMC2_VSEL_30 0x0B
+#define TWL4030_PM_RECEIVER_VMMC2_VSEL_32 0x0C
#define TWL4030_PM_RECEIVER_VSIM_VSEL_18 0x03
/* Device Selection in PM Receiver Module */
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