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https://github.com/brain-hackers/u-boot-brain
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516799f677
This patch add the basic infrastructure for the TWL6030 driver and enables support in the two existing OMAP4 boards, Panda and OMAP4430 SDP Signed-off-by: Steve Sakoman <steve@sakoman.com> Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
/*
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* (C) Copyright 2010
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* Texas Instruments, <www.ti.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <config.h>
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#ifdef CONFIG_TWL6030_POWER
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#include <twl6030.h>
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/* Functions to read and write from TWL6030 */
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static inline int twl6030_i2c_write_u8(u8 chip_no, u8 val, u8 reg)
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{
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return i2c_write(chip_no, reg, 1, &val, 1);
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}
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static inline int twl6030_i2c_read_u8(u8 chip_no, u8 *val, u8 reg)
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{
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return i2c_read(chip_no, reg, 1, val, 1);
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}
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void twl6030_start_usb_charging(void)
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{
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twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_VICHRG_1500,
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CHARGERUSB_VICHRG);
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twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_CIN_LIMIT_NONE,
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CHARGERUSB_CINLIMIT);
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twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, MBAT_TEMP,
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CONTROLLER_INT_MASK);
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twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, MASK_MCHARGERUSB_THMREG,
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CHARGERUSB_INT_MASK);
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twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_VOREG_4P0,
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CHARGERUSB_VOREG);
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twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_CTRL2_VITERM_100,
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CHARGERUSB_CTRL2);
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/* Enable USB charging */
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twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CONTROLLER_CTRL1_EN_CHARGER,
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CONTROLLER_CTRL1);
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return;
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}
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void twl6030_init_battery_charging(void)
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{
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twl6030_start_usb_charging();
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return;
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}
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void twl6030_usb_device_settings()
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{
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u8 data = 0;
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/* Select APP Group and set state to ON */
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twl6030_i2c_write_u8(TWL6030_CHIP_PM, 0x21, VUSB_CFG_STATE);
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twl6030_i2c_read_u8(TWL6030_CHIP_PM, &data, MISC2);
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data |= 0x10;
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/* Select the input supply for VBUS regulator */
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twl6030_i2c_write_u8(TWL6030_CHIP_PM, data, MISC2);
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}
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#endif
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