183d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
2cb199102SNishanth Menon /*
3cb199102SNishanth Menon * (C) Copyright 2012-2013
4cb199102SNishanth Menon * Texas Instruments, <www.ti.com>
5cb199102SNishanth Menon */
6cb199102SNishanth Menon #include <config.h>
7cb199102SNishanth Menon #include <palmas.h>
8cb199102SNishanth Menon
palmas_init_settings(void)912733881SNishanth Menon void palmas_init_settings(void)
10cb199102SNishanth Menon {
11e9090fa4SLubomir Popov #ifdef CONFIG_PALMAS_SMPS7_FPWM
12e9090fa4SLubomir Popov int err;
13e9090fa4SLubomir Popov /*
14e9090fa4SLubomir Popov * Set SMPS7 (1.8 V I/O supply on platforms with TWL6035/37) to
15e9090fa4SLubomir Popov * forced PWM mode. This reduces noise (but affects efficiency).
16e9090fa4SLubomir Popov */
17e9090fa4SLubomir Popov u8 val = SMPS_MODE_SLP_FPWM | SMPS_MODE_ACT_FPWM;
18e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS7_CTRL, val);
19e9090fa4SLubomir Popov if (err)
20e9090fa4SLubomir Popov printf("palmas: could not force PWM for SMPS7: err = %d\n",
21e9090fa4SLubomir Popov err);
22e9090fa4SLubomir Popov #endif
23cb199102SNishanth Menon }
24cb199102SNishanth Menon
25b4b06006SLokesh Vutla #if defined(CONFIG_OMAP54XX)
lp873x_mmc1_poweron_ldo(uint voltage)26b4b06006SLokesh Vutla int lp873x_mmc1_poweron_ldo(uint voltage)
27b4b06006SLokesh Vutla {
28b4b06006SLokesh Vutla if (palmas_i2c_write_u8(LP873X_LDO1_ADDR, LP873X_LDO1_VOLTAGE,
29b4b06006SLokesh Vutla voltage)) {
30b4b06006SLokesh Vutla printf("lp873x: could not set LDO1 voltage.\n");
31b4b06006SLokesh Vutla return 1;
32b4b06006SLokesh Vutla }
33b4b06006SLokesh Vutla /* TURN ON LDO1 */
34b4b06006SLokesh Vutla if (palmas_i2c_write_u8(LP873X_LDO1_ADDR, LP873X_LDO1_CTRL,
35b4b06006SLokesh Vutla LP873X_LDO_CTRL_EN | LP873X_LDO_CTRL_RDIS_EN)) {
36b4b06006SLokesh Vutla printf("lp873x: could not turn on LDO1.\n");
37b4b06006SLokesh Vutla return 1;
38b4b06006SLokesh Vutla }
39b4b06006SLokesh Vutla return 0;
40b4b06006SLokesh Vutla
41b4b06006SLokesh Vutla }
42b4b06006SLokesh Vutla #endif
43b4b06006SLokesh Vutla
palmas_mmc1_poweron_ldo(uint ldo_volt,uint ldo_ctrl,uint voltage)44db4fce8fSLokesh Vutla int palmas_mmc1_poweron_ldo(uint ldo_volt, uint ldo_ctrl, uint voltage)
45cb199102SNishanth Menon {
46cb199102SNishanth Menon u8 val = 0;
47cb199102SNishanth Menon
483891a54fSNishanth Menon #if defined(CONFIG_DRA7XX)
49505cf475SJaehoon Chung int ret;
50db4fce8fSLokesh Vutla
51db4fce8fSLokesh Vutla ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, ldo_volt, voltage);
52505cf475SJaehoon Chung if (ret) {
53e9090fa4SLubomir Popov printf("tps65903x: could not set LDO1 voltage.\n");
54505cf475SJaehoon Chung return ret;
55cb199102SNishanth Menon }
56e9090fa4SLubomir Popov /* TURN ON LDO1 */
57e9090fa4SLubomir Popov val = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
58db4fce8fSLokesh Vutla ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, ldo_ctrl, val);
59505cf475SJaehoon Chung if (ret) {
60e9090fa4SLubomir Popov printf("tps65903x: could not turn on LDO1.\n");
61505cf475SJaehoon Chung return ret;
62cb199102SNishanth Menon }
63cb199102SNishanth Menon return 0;
64e9090fa4SLubomir Popov #else
65e9090fa4SLubomir Popov /*
66e9090fa4SLubomir Popov * We assume that this is a OMAP543X + TWL603X board:
67e9090fa4SLubomir Popov * Set TWL6035/37 LDO9 to 3.0 V
68e9090fa4SLubomir Popov */
69e9090fa4SLubomir Popov val = LDO_VOLT_3V0;
70e9090fa4SLubomir Popov return twl603x_mmc1_set_ldo9(val);
71e9090fa4SLubomir Popov #endif
72e9090fa4SLubomir Popov }
73e9090fa4SLubomir Popov
74e9090fa4SLubomir Popov /*
75e9090fa4SLubomir Popov * On some OMAP5 + TWL603X hardware the SD card socket and LDO9_IN are
76e9090fa4SLubomir Popov * powered by an external 3.3 V regulator, while the output of LDO9
77e9090fa4SLubomir Popov * supplies VDDS_SDCARD for the OMAP5 interface only. This implies that
78e9090fa4SLubomir Popov * LDO9 could be set to 'bypass' mode when required (e.g. for 3.3 V cards).
79e9090fa4SLubomir Popov */
twl603x_mmc1_set_ldo9(u8 vsel)80e9090fa4SLubomir Popov int twl603x_mmc1_set_ldo9(u8 vsel)
81e9090fa4SLubomir Popov {
82e9090fa4SLubomir Popov u8 cval = 0, vval = 0; /* Off by default */
83e9090fa4SLubomir Popov int err;
84e9090fa4SLubomir Popov
85e9090fa4SLubomir Popov if (vsel) {
86e9090fa4SLubomir Popov /* Turn on */
87e9090fa4SLubomir Popov if (vsel > LDO_VOLT_3V3) {
88e9090fa4SLubomir Popov /* Put LDO9 in bypass */
89e9090fa4SLubomir Popov cval = LDO9_BYP_EN | RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
90e9090fa4SLubomir Popov vval = LDO_VOLT_3V3;
91e9090fa4SLubomir Popov } else {
92e9090fa4SLubomir Popov cval = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
93e9090fa4SLubomir Popov vval = vsel & 0x3f;
94e9090fa4SLubomir Popov }
95e9090fa4SLubomir Popov }
96e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_VOLTAGE, vval);
97e9090fa4SLubomir Popov if (err) {
98e9090fa4SLubomir Popov printf("twl603x: could not set LDO9 %s: err = %d\n",
99e9090fa4SLubomir Popov vsel > LDO_VOLT_3V3 ? "bypass" : "voltage", err);
100e9090fa4SLubomir Popov return err;
101e9090fa4SLubomir Popov }
102e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_CTRL, cval);
103e9090fa4SLubomir Popov if (err)
104e9090fa4SLubomir Popov printf("twl603x: could not turn %s LDO9: err = %d\n",
105e9090fa4SLubomir Popov cval ? "on" : "off", err);
106e9090fa4SLubomir Popov return err;
107e9090fa4SLubomir Popov }
108e9090fa4SLubomir Popov
109e9090fa4SLubomir Popov #ifdef CONFIG_PALMAS_AUDPWR
110e9090fa4SLubomir Popov /*
111e9090fa4SLubomir Popov * Turn audio codec power and 32 kHz clock on/off. Use for
112e9090fa4SLubomir Popov * testing OMAP543X + TWL603X + TWL604X boards only.
113e9090fa4SLubomir Popov */
twl603x_audio_power(u8 on)114e9090fa4SLubomir Popov int twl603x_audio_power(u8 on)
115e9090fa4SLubomir Popov {
116e9090fa4SLubomir Popov u8 cval = 0, vval = 0, c32k = 0;
117e9090fa4SLubomir Popov int err;
118e9090fa4SLubomir Popov
119e9090fa4SLubomir Popov if (on) {
120e9090fa4SLubomir Popov vval = SMPS_VOLT_2V1;
121e9090fa4SLubomir Popov cval = SMPS_MODE_SLP_AUTO | SMPS_MODE_ACT_AUTO;
122e9090fa4SLubomir Popov c32k = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
123e9090fa4SLubomir Popov }
124e9090fa4SLubomir Popov /* Set SMPS9 to 2.1 V (for TWL604x), or to 0 (off) */
125e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_VOLTAGE, vval);
126e9090fa4SLubomir Popov if (err) {
127e9090fa4SLubomir Popov printf("twl603x: could not set SMPS9 voltage: err = %d\n",
128e9090fa4SLubomir Popov err);
129e9090fa4SLubomir Popov return err;
130e9090fa4SLubomir Popov }
131e9090fa4SLubomir Popov /* Turn on or off SMPS9 */
132e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_CTRL, cval);
133e9090fa4SLubomir Popov if (err) {
134e9090fa4SLubomir Popov printf("twl603x: could not turn SMPS9 %s: err = %d\n",
135e9090fa4SLubomir Popov cval ? "on" : "off", err);
136e9090fa4SLubomir Popov return err;
137e9090fa4SLubomir Popov }
138e9090fa4SLubomir Popov /* Output 32 kHz clock on or off */
139e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, CLK32KGAUDIO_CTRL, c32k);
140e9090fa4SLubomir Popov if (err)
141e9090fa4SLubomir Popov printf("twl603x: could not turn CLK32KGAUDIO %s: err = %d\n",
142e9090fa4SLubomir Popov c32k ? "on" : "off", err);
143e9090fa4SLubomir Popov return err;
144e9090fa4SLubomir Popov }
145e9090fa4SLubomir Popov #endif
146e9090fa4SLubomir Popov
1471bd435bcSDan Murphy #ifdef CONFIG_PALMAS_USB_SS_PWR
1481bd435bcSDan Murphy /**
1491bd435bcSDan Murphy * @brief palmas_enable_ss_ldo - Configure EVM board specific configurations
1501bd435bcSDan Murphy * for the USB Super speed SMPS10 regulator.
1511bd435bcSDan Murphy *
1521bd435bcSDan Murphy * @return 0
1531bd435bcSDan Murphy */
palmas_enable_ss_ldo(void)1541bd435bcSDan Murphy int palmas_enable_ss_ldo(void)
1551bd435bcSDan Murphy {
1561bd435bcSDan Murphy /* Enable smps10 regulator */
1571bd435bcSDan Murphy return palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS10_CTRL,
1581bd435bcSDan Murphy SMPS10_MODE_ACTIVE_D);
1591bd435bcSDan Murphy }
1601bd435bcSDan Murphy #endif
1611bd435bcSDan Murphy
162e9090fa4SLubomir Popov /*
163e9090fa4SLubomir Popov * Enable/disable back-up battery (or super cap) charging on TWL6035/37.
164e9090fa4SLubomir Popov * Please use defined BB_xxx values.
165e9090fa4SLubomir Popov */
twl603x_enable_bb_charge(u8 bb_fields)166e9090fa4SLubomir Popov int twl603x_enable_bb_charge(u8 bb_fields)
167e9090fa4SLubomir Popov {
168e9090fa4SLubomir Popov u8 val = bb_fields & 0x0f;
169e9090fa4SLubomir Popov int err;
170e9090fa4SLubomir Popov
171e9090fa4SLubomir Popov val |= (VRTC_EN_SLP | VRTC_EN_OFF | VRTC_PWEN);
172e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, BB_VRTC_CTRL, val);
173e9090fa4SLubomir Popov if (err)
174e9090fa4SLubomir Popov printf("twl603x: could not set BB_VRTC_CTRL to 0x%02x: err = %d\n",
175e9090fa4SLubomir Popov val, err);
176e9090fa4SLubomir Popov return err;
177cb199102SNishanth Menon }
178*fb1b7712SJean-Jacques Hiblot
179*fb1b7712SJean-Jacques Hiblot #ifdef CONFIG_DM_I2C
palmas_i2c_write_u8(u8 chip_no,u8 reg,u8 val)180*fb1b7712SJean-Jacques Hiblot int palmas_i2c_write_u8(u8 chip_no, u8 reg, u8 val)
181*fb1b7712SJean-Jacques Hiblot {
182*fb1b7712SJean-Jacques Hiblot struct udevice *dev;
183*fb1b7712SJean-Jacques Hiblot int ret;
184*fb1b7712SJean-Jacques Hiblot
185*fb1b7712SJean-Jacques Hiblot ret = i2c_get_chip_for_busnum(0, chip_no, 1, &dev);
186*fb1b7712SJean-Jacques Hiblot if (ret) {
187*fb1b7712SJean-Jacques Hiblot pr_err("unable to get I2C bus. ret %d\n", ret);
188*fb1b7712SJean-Jacques Hiblot return ret;
189*fb1b7712SJean-Jacques Hiblot }
190*fb1b7712SJean-Jacques Hiblot ret = dm_i2c_reg_write(dev, reg, val);
191*fb1b7712SJean-Jacques Hiblot if (ret) {
192*fb1b7712SJean-Jacques Hiblot pr_err("writing to palmas failed. ret %d\n", ret);
193*fb1b7712SJean-Jacques Hiblot return ret;
194*fb1b7712SJean-Jacques Hiblot }
195*fb1b7712SJean-Jacques Hiblot return 0;
196*fb1b7712SJean-Jacques Hiblot }
197*fb1b7712SJean-Jacques Hiblot
palmas_i2c_read_u8(u8 chip_no,u8 reg,u8 * valp)198*fb1b7712SJean-Jacques Hiblot int palmas_i2c_read_u8(u8 chip_no, u8 reg, u8 *valp)
199*fb1b7712SJean-Jacques Hiblot {
200*fb1b7712SJean-Jacques Hiblot struct udevice *dev;
201*fb1b7712SJean-Jacques Hiblot int ret;
202*fb1b7712SJean-Jacques Hiblot
203*fb1b7712SJean-Jacques Hiblot ret = i2c_get_chip_for_busnum(0, chip_no, 1, &dev);
204*fb1b7712SJean-Jacques Hiblot if (ret) {
205*fb1b7712SJean-Jacques Hiblot pr_err("unable to get I2C bus. ret %d\n", ret);
206*fb1b7712SJean-Jacques Hiblot return ret;
207*fb1b7712SJean-Jacques Hiblot }
208*fb1b7712SJean-Jacques Hiblot ret = dm_i2c_reg_read(dev, reg);
209*fb1b7712SJean-Jacques Hiblot if (ret < 0) {
210*fb1b7712SJean-Jacques Hiblot pr_err("reading from palmas failed. ret %d\n", ret);
211*fb1b7712SJean-Jacques Hiblot return ret;
212*fb1b7712SJean-Jacques Hiblot }
213*fb1b7712SJean-Jacques Hiblot *valp = (u8)ret;
214*fb1b7712SJean-Jacques Hiblot return 0;
215*fb1b7712SJean-Jacques Hiblot }
216*fb1b7712SJean-Jacques Hiblot #endif
217