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 voltage)
49 #if defined(CONFIG_DRA7XX)
52 * Currently valid for the dra7xx_evm board:
53 * Set TPS659038 LDO1 to 3.0 V or 1.8V
55 ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_VOLTAGE, voltage);
57 printf("tps65903x: could not set LDO1 voltage.\n");
61 val = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
62 ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_CTRL, val);
64 printf("tps65903x: could not turn on LDO1.\n");
70 * We assume that this is a OMAP543X + TWL603X board:
71 * Set TWL6035/37 LDO9 to 3.0 V
74 return twl603x_mmc1_set_ldo9(val);
79 * On some OMAP5 + TWL603X hardware the SD card socket and LDO9_IN are
80 * powered by an external 3.3 V regulator, while the output of LDO9
81 * supplies VDDS_SDCARD for the OMAP5 interface only. This implies that
82 * LDO9 could be set to 'bypass' mode when required (e.g. for 3.3 V cards).
84 int twl603x_mmc1_set_ldo9(u8 vsel)
86 u8 cval = 0, vval = 0; /* Off by default */
91 if (vsel > LDO_VOLT_3V3) {
92 /* Put LDO9 in bypass */
93 cval = LDO9_BYP_EN | RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
96 cval = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
100 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_VOLTAGE, vval);
102 printf("twl603x: could not set LDO9 %s: err = %d\n",
103 vsel > LDO_VOLT_3V3 ? "bypass" : "voltage", err);
106 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_CTRL, cval);
108 printf("twl603x: could not turn %s LDO9: err = %d\n",
109 cval ? "on" : "off", err);
113 #ifdef CONFIG_PALMAS_AUDPWR
115 * Turn audio codec power and 32 kHz clock on/off. Use for
116 * testing OMAP543X + TWL603X + TWL604X boards only.
118 int twl603x_audio_power(u8 on)
120 u8 cval = 0, vval = 0, c32k = 0;
124 vval = SMPS_VOLT_2V1;
125 cval = SMPS_MODE_SLP_AUTO | SMPS_MODE_ACT_AUTO;
126 c32k = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
128 /* Set SMPS9 to 2.1 V (for TWL604x), or to 0 (off) */
129 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_VOLTAGE, vval);
131 printf("twl603x: could not set SMPS9 voltage: err = %d\n",
135 /* Turn on or off SMPS9 */
136 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_CTRL, cval);
138 printf("twl603x: could not turn SMPS9 %s: err = %d\n",
139 cval ? "on" : "off", err);
142 /* Output 32 kHz clock on or off */
143 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, CLK32KGAUDIO_CTRL, c32k);
145 printf("twl603x: could not turn CLK32KGAUDIO %s: err = %d\n",
146 c32k ? "on" : "off", err);
151 #ifdef CONFIG_PALMAS_USB_SS_PWR
153 * @brief palmas_enable_ss_ldo - Configure EVM board specific configurations
154 * for the USB Super speed SMPS10 regulator.
158 int palmas_enable_ss_ldo(void)
160 /* Enable smps10 regulator */
161 return palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS10_CTRL,
162 SMPS10_MODE_ACTIVE_D);
167 * Enable/disable back-up battery (or super cap) charging on TWL6035/37.
168 * Please use defined BB_xxx values.
170 int twl603x_enable_bb_charge(u8 bb_fields)
172 u8 val = bb_fields & 0x0f;
175 val |= (VRTC_EN_SLP | VRTC_EN_OFF | VRTC_PWEN);
176 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, BB_VRTC_CTRL, val);
178 printf("twl603x: could not set BB_VRTC_CTRL to 0x%02x: err = %d\n",