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twl4030: VMMC2 3.2V enable on MMC init

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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>
This commit is contained in:
Paul Kocialkowski 2014-10-28 18:14:23 +01:00 • committed by Anatolij Gustschin
parent 934a529f94
commit 2ed8c878eb
2 changed files with 8 additions and 0 deletions
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6
drivers/power/twl4030.c
View file

@ -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);
}

2
include/twl4030.h
View file

@ -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 */