2 * (C) Copyright 2012-2013
3 * Texas Instruments, <www.ti.com>
5 * SPDX-License-Identifier: GPL-2.0+
10 void palmas_init_settings(void)
12 #ifdef CONFIG_PALMAS_SMPS7_FPWM
15 * Set SMPS7 (1.8 V I/O supply on platforms with TWL6035/37) to
16 * forced PWM mode. This reduces noise (but affects efficiency).
18 u8 val = SMPS_MODE_SLP_FPWM | SMPS_MODE_ACT_FPWM;
19 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS7_CTRL, val);
21 printf("palmas: could not force PWM for SMPS7: err = %d\n",
26 #if defined(CONFIG_OMAP54XX)
27 int lp873x_mmc1_poweron_ldo(uint voltage)
29 if (palmas_i2c_write_u8(LP873X_LDO1_ADDR, LP873X_LDO1_VOLTAGE,
31 printf("lp873x: could not set LDO1 voltage.\n");
35 if (palmas_i2c_write_u8(LP873X_LDO1_ADDR, LP873X_LDO1_CTRL,
36 LP873X_LDO_CTRL_EN | LP873X_LDO_CTRL_RDIS_EN)) {
37 printf("lp873x: could not turn on LDO1.\n");
45 int palmas_mmc1_poweron_ldo(uint ldo_volt, uint ldo_ctrl, uint voltage)
49 #if defined(CONFIG_DRA7XX)
52 ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, ldo_volt, voltage);
54 printf("tps65903x: could not set LDO1 voltage.\n");
58 val = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
59 ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, ldo_ctrl, val);
61 printf("tps65903x: could not turn on LDO1.\n");
67 * We assume that this is a OMAP543X + TWL603X board:
68 * Set TWL6035/37 LDO9 to 3.0 V
71 return twl603x_mmc1_set_ldo9(val);
76 * On some OMAP5 + TWL603X hardware the SD card socket and LDO9_IN are
77 * powered by an external 3.3 V regulator, while the output of LDO9
78 * supplies VDDS_SDCARD for the OMAP5 interface only. This implies that
79 * LDO9 could be set to 'bypass' mode when required (e.g. for 3.3 V cards).
81 int twl603x_mmc1_set_ldo9(u8 vsel)
83 u8 cval = 0, vval = 0; /* Off by default */
88 if (vsel > LDO_VOLT_3V3) {
89 /* Put LDO9 in bypass */
90 cval = LDO9_BYP_EN | RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
93 cval = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
97 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_VOLTAGE, vval);
99 printf("twl603x: could not set LDO9 %s: err = %d\n",
100 vsel > LDO_VOLT_3V3 ? "bypass" : "voltage", err);
103 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_CTRL, cval);
105 printf("twl603x: could not turn %s LDO9: err = %d\n",
106 cval ? "on" : "off", err);
110 #ifdef CONFIG_PALMAS_AUDPWR
112 * Turn audio codec power and 32 kHz clock on/off. Use for
113 * testing OMAP543X + TWL603X + TWL604X boards only.
115 int twl603x_audio_power(u8 on)
117 u8 cval = 0, vval = 0, c32k = 0;
121 vval = SMPS_VOLT_2V1;
122 cval = SMPS_MODE_SLP_AUTO | SMPS_MODE_ACT_AUTO;
123 c32k = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
125 /* Set SMPS9 to 2.1 V (for TWL604x), or to 0 (off) */
126 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_VOLTAGE, vval);
128 printf("twl603x: could not set SMPS9 voltage: err = %d\n",
132 /* Turn on or off SMPS9 */
133 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_CTRL, cval);
135 printf("twl603x: could not turn SMPS9 %s: err = %d\n",
136 cval ? "on" : "off", err);
139 /* Output 32 kHz clock on or off */
140 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, CLK32KGAUDIO_CTRL, c32k);
142 printf("twl603x: could not turn CLK32KGAUDIO %s: err = %d\n",
143 c32k ? "on" : "off", err);
148 #ifdef CONFIG_PALMAS_USB_SS_PWR
150 * @brief palmas_enable_ss_ldo - Configure EVM board specific configurations
151 * for the USB Super speed SMPS10 regulator.
155 int palmas_enable_ss_ldo(void)
157 /* Enable smps10 regulator */
158 return palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS10_CTRL,
159 SMPS10_MODE_ACTIVE_D);
164 * Enable/disable back-up battery (or super cap) charging on TWL6035/37.
165 * Please use defined BB_xxx values.
167 int twl603x_enable_bb_charge(u8 bb_fields)
169 u8 val = bb_fields & 0x0f;
172 val |= (VRTC_EN_SLP | VRTC_EN_OFF | VRTC_PWEN);
173 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, BB_VRTC_CTRL, val);
175 printf("twl603x: could not set BB_VRTC_CTRL to 0x%02x: err = %d\n",