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/*
* (C) Copyright 2010
* Texas Instruments, <www.ti.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <config.h>
#ifdef CONFIG_TWL6030_POWER
#include <twl6030.h>
/* Functions to read and write from TWL6030 */
static inline int twl6030_i2c_write_u8(u8 chip_no, u8 val, u8 reg)
{
return i2c_write(chip_no, reg, 1, &val, 1);
}
static inline int twl6030_i2c_read_u8(u8 chip_no, u8 *val, u8 reg)
{
return i2c_read(chip_no, reg, 1, val, 1);
}
void twl6030_start_usb_charging(void)
{
twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_VICHRG_1500,
CHARGERUSB_VICHRG);
twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_CIN_LIMIT_NONE,
CHARGERUSB_CINLIMIT);
twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, MBAT_TEMP,
CONTROLLER_INT_MASK);
twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, MASK_MCHARGERUSB_THMREG,
CHARGERUSB_INT_MASK);
twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_VOREG_4P0,
CHARGERUSB_VOREG);
twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_CTRL2_VITERM_100,
CHARGERUSB_CTRL2);
/* Enable USB charging */
twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CONTROLLER_CTRL1_EN_CHARGER,
CONTROLLER_CTRL1);
return;
}
void twl6030_init_battery_charging(void)
{
twl6030_start_usb_charging();
return;
}
void twl6030_usb_device_settings()
{
u8 data = 0;
/* Select APP Group and set state to ON */
twl6030_i2c_write_u8(TWL6030_CHIP_PM, 0x21, VUSB_CFG_STATE);
twl6030_i2c_read_u8(TWL6030_CHIP_PM, &data, MISC2);
data |= 0x10;
/* Select the input supply for VBUS regulator */
twl6030_i2c_write_u8(TWL6030_CHIP_PM, data, MISC2);
}
#endif
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