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SRICHARAN R21144292012-03-12 02:25:48 +00001/*
Nishanth Menoncb199102013-03-26 05:20:54 +00002 * (C) Copyright 2012-2013
SRICHARAN R21144292012-03-12 02:25:48 +00003 * Texas Instruments, <www.ti.com>
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23#include <config.h>
Nishanth Menoncb199102013-03-26 05:20:54 +000024#include <palmas.h>
SRICHARAN R21144292012-03-12 02:25:48 +000025
26/* Functions to read and write from TWL6030 */
27int twl6035_i2c_write_u8(u8 chip_no, u8 val, u8 reg)
28{
29 return i2c_write(chip_no, reg, 1, &val, 1);
30}
31
32int twl6035_i2c_read_u8(u8 chip_no, u8 *val, u8 reg)
33{
34 return i2c_read(chip_no, reg, 1, val, 1);
35}
36
Balaji T Kdd23e592012-03-12 02:25:49 +000037/* To align with i2c mw/mr address, reg, val command syntax */
38static inline int palmas_write_u8(u8 chip_no, u8 reg, u8 val)
39{
40 return i2c_write(chip_no, reg, 1, &val, 1);
41}
42
43static inline int palmas_read_u8(u8 chip_no, u8 reg, u8 *val)
44{
45 return i2c_read(chip_no, reg, 1, val, 1);
46}
47
Nishanth Menon12733882013-03-26 05:20:55 +000048void palmas_init_settings(void)
SRICHARAN R21144292012-03-12 02:25:48 +000049{
50 return;
51}
Balaji T Kdd23e592012-03-12 02:25:49 +000052
Vincent Stehléce851c82012-12-03 05:23:17 +000053int twl6035_mmc1_poweron_ldo(void)
Balaji T Kdd23e592012-03-12 02:25:49 +000054{
55 u8 val = 0;
56
57 /* set LDO9 TWL6035 to 3V */
58 val = 0x2b; /* (3 -.9)*28 +1 */
Vincent Stehléce851c82012-12-03 05:23:17 +000059
60 if (palmas_write_u8(0x48, LDO9_VOLTAGE, val)) {
61 printf("twl6035: could not set LDO9 voltage.\n");
62 return 1;
63 }
Balaji T Kdd23e592012-03-12 02:25:49 +000064
65 /* TURN ON LDO9 */
66 val = LDO_ON | LDO_MODE_SLEEP | LDO_MODE_ACTIVE;
Vincent Stehléce851c82012-12-03 05:23:17 +000067
68 if (palmas_write_u8(0x48, LDO9_CTRL, val)) {
69 printf("twl6035: could not turn on LDO9.\n");
70 return 1;
71 }
72
73 return 0;
Balaji T Kdd23e592012-03-12 02:25:49 +000074}