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 int palmas_mmc1_poweron_ldo(void)
30 #if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX)
32 * Currently valid for the dra7xx_evm board:
33 * Set TPS659038 LDO1 to 3.0 V
36 if (palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_VOLTAGE, val)) {
37 printf("tps65903x: could not set LDO1 voltage.\n");
41 val = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
42 if (palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_CTRL, val)) {
43 printf("tps65903x: could not turn on LDO1.\n");
49 * We assume that this is a OMAP543X + TWL603X board:
50 * Set TWL6035/37 LDO9 to 3.0 V
53 return twl603x_mmc1_set_ldo9(val);
58 * On some OMAP5 + TWL603X hardware the SD card socket and LDO9_IN are
59 * powered by an external 3.3 V regulator, while the output of LDO9
60 * supplies VDDS_SDCARD for the OMAP5 interface only. This implies that
61 * LDO9 could be set to 'bypass' mode when required (e.g. for 3.3 V cards).
63 int twl603x_mmc1_set_ldo9(u8 vsel)
65 u8 cval = 0, vval = 0; /* Off by default */
70 if (vsel > LDO_VOLT_3V3) {
71 /* Put LDO9 in bypass */
72 cval = LDO9_BYP_EN | RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
75 cval = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
79 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_VOLTAGE, vval);
81 printf("twl603x: could not set LDO9 %s: err = %d\n",
82 vsel > LDO_VOLT_3V3 ? "bypass" : "voltage", err);
85 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_CTRL, cval);
87 printf("twl603x: could not turn %s LDO9: err = %d\n",
88 cval ? "on" : "off", err);
92 #ifdef CONFIG_PALMAS_AUDPWR
94 * Turn audio codec power and 32 kHz clock on/off. Use for
95 * testing OMAP543X + TWL603X + TWL604X boards only.
97 int twl603x_audio_power(u8 on)
99 u8 cval = 0, vval = 0, c32k = 0;
103 vval = SMPS_VOLT_2V1;
104 cval = SMPS_MODE_SLP_AUTO | SMPS_MODE_ACT_AUTO;
105 c32k = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
107 /* Set SMPS9 to 2.1 V (for TWL604x), or to 0 (off) */
108 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_VOLTAGE, vval);
110 printf("twl603x: could not set SMPS9 voltage: err = %d\n",
114 /* Turn on or off SMPS9 */
115 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_CTRL, cval);
117 printf("twl603x: could not turn SMPS9 %s: err = %d\n",
118 cval ? "on" : "off", err);
121 /* Output 32 kHz clock on or off */
122 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, CLK32KGAUDIO_CTRL, c32k);
124 printf("twl603x: could not turn CLK32KGAUDIO %s: err = %d\n",
125 c32k ? "on" : "off", err);
130 #ifdef CONFIG_PALMAS_USB_SS_PWR
132 * @brief palmas_enable_ss_ldo - Configure EVM board specific configurations
133 * for the USB Super speed SMPS10 regulator.
137 int palmas_enable_ss_ldo(void)
139 /* Enable smps10 regulator */
140 return palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS10_CTRL,
141 SMPS10_MODE_ACTIVE_D);
146 * Enable/disable back-up battery (or super cap) charging on TWL6035/37.
147 * Please use defined BB_xxx values.
149 int twl603x_enable_bb_charge(u8 bb_fields)
151 u8 val = bb_fields & 0x0f;
154 val |= (VRTC_EN_SLP | VRTC_EN_OFF | VRTC_PWEN);
155 err = palmas_i2c_write_u8(TWL603X_CHIP_P1, BB_VRTC_CTRL, val);
157 printf("twl603x: could not set BB_VRTC_CTRL to 0x%02x: err = %d\n",