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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 <common.h>
#include <i2c.h>
/* I2C chip addresses */
#define TWL6030_CHIP_PM 0x48
#define TWL6030_CHIP_USB 0x49
#define TWL6030_CHIP_ADC 0x49
#define TWL6030_CHIP_CHARGER 0x49
#define TWL6030_CHIP_PWM 0x49
/* Slave Address 0x48 */
#define VMMC_CFG_STATE 0x9A
#define VMMC_CFG_VOLTATE 0x9B
#define VUSB_CFG_STATE 0xA2
#define MISC1 0xE4
#define VAC_MEAS (1 << 2)
#define VBAT_MEAS (1 << 1)
#define BB_MEAS (1 << 0)
#define MISC2 0xE5
/* Slave Address 0x49 */
/* Battery CHARGER REGISTERS */
#define CONTROLLER_INT_MASK 0xE0
#define CONTROLLER_CTRL1 0xE1
#define CONTROLLER_WDG 0xE2
#define CONTROLLER_STAT1 0xE3
#define CHARGERUSB_INT_STATUS 0xE4
#define CHARGERUSB_INT_MASK 0xE5
#define CHARGERUSB_STATUS_INT1 0xE6
#define CHARGERUSB_STATUS_INT2 0xE7
#define CHARGERUSB_CTRL1 0xE8
#define CHARGERUSB_CTRL2 0xE9
#define CHARGERUSB_CTRL3 0xEA
#define CHARGERUSB_STAT1 0xEB
#define CHARGERUSB_VOREG 0xEC
#define CHARGERUSB_VICHRG 0xED
#define CHARGERUSB_CINLIMIT 0xEE
#define CHARGERUSB_CTRLLIMIT1 0xEF
/* CHARGERUSB_VICHRG */
#define CHARGERUSB_VICHRG_500 0x4
#define CHARGERUSB_VICHRG_1500 0xE
/* CHARGERUSB_CINLIMIT */
#define CHARGERUSB_CIN_LIMIT_100 0x1
#define CHARGERUSB_CIN_LIMIT_300 0x5
#define CHARGERUSB_CIN_LIMIT_500 0x9
#define CHARGERUSB_CIN_LIMIT_NONE 0xF
/* CONTROLLER_INT_MASK */
#define MVAC_FAULT (1 << 6)
#define MAC_EOC (1 << 5)
#define MBAT_REMOVED (1 << 4)
#define MFAULT_WDG (1 << 3)
#define MBAT_TEMP (1 << 2)
#define MVBUS_DET (1 << 1)
#define MVAC_DET (1 << 0)
/* CHARGERUSB_INT_MASK */
#define MASK_MCURRENT_TERM (1 << 3)
#define MASK_MCHARGERUSB_STAT (1 << 2)
#define MASK_MCHARGERUSB_THMREG (1 << 1)
#define MASK_MCHARGERUSB_FAULT (1 << 0)
/* CHARGERUSB_VOREG */
#define CHARGERUSB_VOREG_3P52 0x01
#define CHARGERUSB_VOREG_4P0 0x19
#define CHARGERUSB_VOREG_4P2 0x23
#define CHARGERUSB_VOREG_4P76 0x3F
/* CHARGERUSB_CTRL1 */
#define SUSPEND_BOOT (1 << 7)
#define OPA_MODE (1 << 6)
#define HZ_MODE (1 << 5)
#define TERM (1 << 4)
/* CHARGERUSB_CTRL2 */
#define CHARGERUSB_CTRL2_VITERM_50 (0 << 5)
#define CHARGERUSB_CTRL2_VITERM_100 (1 << 5)
#define CHARGERUSB_CTRL2_VITERM_150 (2 << 5)
#define CHARGERUSB_CTRL2_VITERM_400 (7 << 5)
/* CONTROLLER_CTRL1 */
#define CONTROLLER_CTRL1_EN_CHARGER (1 << 4)
#define CONTROLLER_CTRL1_SEL_CHARGER (1 << 3)
/* CONTROLLER_STAT1 */
#define CHRG_EXTCHRG_STATZ (1 << 7)
#define CHRG_DET_N (1 << 5)
#define VAC_DET (1 << 3)
#define VBUS_DET (1 << 2)
#define FG_REG_10 0xCA
#define FG_REG_11 0xCB
#define TOGGLE1 0x90
#define FGS (1 << 5)
#define FGR (1 << 4)
#define GPADCS (1 << 1)
#define GPADCR (1 << 0)
#define CTRL_P2 0x34
#define CTRL_P2_SP2 (1 << 2)
#define CTRL_P2_EOCP2 (1 << 1)
#define CTRL_P2_BUSY (1 << 0)
#define GPCH0_LSB 0x57
#define GPCH0_MSB 0x58
/* Functions to read and write from TWL6030 */
static inline int twl6030_i2c_write_u8(u8 chip_no, u8 reg, u8 val)
{
return i2c_write(chip_no, reg, 1, &val, 1);
}
static inline int twl6030_i2c_read_u8(u8 chip_no, u8 reg, u8 *val)
{
return i2c_read(chip_no, reg, 1, val, 1);
}
void twl6030_init_battery_charging(void);
void twl6030_usb_device_settings(void);
void twl6030_start_usb_charging(void);
void twl6030_stop_usb_charging(void);
int twl6030_get_battery_voltage(void);
int twl6030_get_battery_current(void);
void twl6030_power_mmc_init(void);
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