1cb199102SNishanth Menon /* 2cb199102SNishanth Menon * (C) Copyright 2012-2013 3cb199102SNishanth Menon * Texas Instruments, <www.ti.com> 4cb199102SNishanth Menon * 51a459660SWolfgang Denk * SPDX-License-Identifier: GPL-2.0+ 6cb199102SNishanth Menon */ 7cb199102SNishanth Menon #include <config.h> 8cb199102SNishanth Menon #include <palmas.h> 9cb199102SNishanth Menon 1012733881SNishanth Menon void palmas_init_settings(void) 11cb199102SNishanth Menon { 12e9090fa4SLubomir Popov #ifdef CONFIG_PALMAS_SMPS7_FPWM 13e9090fa4SLubomir Popov int err; 14e9090fa4SLubomir Popov /* 15e9090fa4SLubomir Popov * Set SMPS7 (1.8 V I/O supply on platforms with TWL6035/37) to 16e9090fa4SLubomir Popov * forced PWM mode. This reduces noise (but affects efficiency). 17e9090fa4SLubomir Popov */ 18e9090fa4SLubomir Popov u8 val = SMPS_MODE_SLP_FPWM | SMPS_MODE_ACT_FPWM; 19e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS7_CTRL, val); 20e9090fa4SLubomir Popov if (err) 21e9090fa4SLubomir Popov printf("palmas: could not force PWM for SMPS7: err = %d\n", 22e9090fa4SLubomir Popov err); 23e9090fa4SLubomir Popov #endif 24cb199102SNishanth Menon } 25cb199102SNishanth Menon 26b4b06006SLokesh Vutla #if defined(CONFIG_OMAP54XX) 27b4b06006SLokesh Vutla int lp873x_mmc1_poweron_ldo(uint voltage) 28b4b06006SLokesh Vutla { 29b4b06006SLokesh Vutla if (palmas_i2c_write_u8(LP873X_LDO1_ADDR, LP873X_LDO1_VOLTAGE, 30b4b06006SLokesh Vutla voltage)) { 31b4b06006SLokesh Vutla printf("lp873x: could not set LDO1 voltage.\n"); 32b4b06006SLokesh Vutla return 1; 33b4b06006SLokesh Vutla } 34b4b06006SLokesh Vutla /* TURN ON LDO1 */ 35b4b06006SLokesh Vutla if (palmas_i2c_write_u8(LP873X_LDO1_ADDR, LP873X_LDO1_CTRL, 36b4b06006SLokesh Vutla LP873X_LDO_CTRL_EN | LP873X_LDO_CTRL_RDIS_EN)) { 37b4b06006SLokesh Vutla printf("lp873x: could not turn on LDO1.\n"); 38b4b06006SLokesh Vutla return 1; 39b4b06006SLokesh Vutla } 40b4b06006SLokesh Vutla return 0; 41b4b06006SLokesh Vutla 42b4b06006SLokesh Vutla } 43b4b06006SLokesh Vutla #endif 44b4b06006SLokesh Vutla 45b4b06006SLokesh Vutla int palmas_mmc1_poweron_ldo(uint voltage) 46cb199102SNishanth Menon { 47cb199102SNishanth Menon u8 val = 0; 48cb199102SNishanth Menon 493891a54fSNishanth Menon #if defined(CONFIG_DRA7XX) 50*505cf475SJaehoon Chung int ret; 51e9090fa4SLubomir Popov /* 52e9090fa4SLubomir Popov * Currently valid for the dra7xx_evm board: 53e9090fa4SLubomir Popov * Set TPS659038 LDO1 to 3.0 V 54e9090fa4SLubomir Popov */ 55e9090fa4SLubomir Popov val = LDO_VOLT_3V0; 56*505cf475SJaehoon Chung ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_VOLTAGE, val); 57*505cf475SJaehoon Chung if (ret) { 58e9090fa4SLubomir Popov printf("tps65903x: could not set LDO1 voltage.\n"); 59*505cf475SJaehoon Chung return ret; 60cb199102SNishanth Menon } 61e9090fa4SLubomir Popov /* TURN ON LDO1 */ 62e9090fa4SLubomir Popov val = RSC_MODE_SLEEP | RSC_MODE_ACTIVE; 63*505cf475SJaehoon Chung ret = palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_CTRL, val); 64*505cf475SJaehoon Chung if (ret) { 65e9090fa4SLubomir Popov printf("tps65903x: could not turn on LDO1.\n"); 66*505cf475SJaehoon Chung return ret; 67cb199102SNishanth Menon } 68cb199102SNishanth Menon return 0; 69e9090fa4SLubomir Popov #else 70e9090fa4SLubomir Popov /* 71e9090fa4SLubomir Popov * We assume that this is a OMAP543X + TWL603X board: 72e9090fa4SLubomir Popov * Set TWL6035/37 LDO9 to 3.0 V 73e9090fa4SLubomir Popov */ 74e9090fa4SLubomir Popov val = LDO_VOLT_3V0; 75e9090fa4SLubomir Popov return twl603x_mmc1_set_ldo9(val); 76e9090fa4SLubomir Popov #endif 77e9090fa4SLubomir Popov } 78e9090fa4SLubomir Popov 79e9090fa4SLubomir Popov /* 80e9090fa4SLubomir Popov * On some OMAP5 + TWL603X hardware the SD card socket and LDO9_IN are 81e9090fa4SLubomir Popov * powered by an external 3.3 V regulator, while the output of LDO9 82e9090fa4SLubomir Popov * supplies VDDS_SDCARD for the OMAP5 interface only. This implies that 83e9090fa4SLubomir Popov * LDO9 could be set to 'bypass' mode when required (e.g. for 3.3 V cards). 84e9090fa4SLubomir Popov */ 85e9090fa4SLubomir Popov int twl603x_mmc1_set_ldo9(u8 vsel) 86e9090fa4SLubomir Popov { 87e9090fa4SLubomir Popov u8 cval = 0, vval = 0; /* Off by default */ 88e9090fa4SLubomir Popov int err; 89e9090fa4SLubomir Popov 90e9090fa4SLubomir Popov if (vsel) { 91e9090fa4SLubomir Popov /* Turn on */ 92e9090fa4SLubomir Popov if (vsel > LDO_VOLT_3V3) { 93e9090fa4SLubomir Popov /* Put LDO9 in bypass */ 94e9090fa4SLubomir Popov cval = LDO9_BYP_EN | RSC_MODE_SLEEP | RSC_MODE_ACTIVE; 95e9090fa4SLubomir Popov vval = LDO_VOLT_3V3; 96e9090fa4SLubomir Popov } else { 97e9090fa4SLubomir Popov cval = RSC_MODE_SLEEP | RSC_MODE_ACTIVE; 98e9090fa4SLubomir Popov vval = vsel & 0x3f; 99e9090fa4SLubomir Popov } 100e9090fa4SLubomir Popov } 101e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_VOLTAGE, vval); 102e9090fa4SLubomir Popov if (err) { 103e9090fa4SLubomir Popov printf("twl603x: could not set LDO9 %s: err = %d\n", 104e9090fa4SLubomir Popov vsel > LDO_VOLT_3V3 ? "bypass" : "voltage", err); 105e9090fa4SLubomir Popov return err; 106e9090fa4SLubomir Popov } 107e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_CTRL, cval); 108e9090fa4SLubomir Popov if (err) 109e9090fa4SLubomir Popov printf("twl603x: could not turn %s LDO9: err = %d\n", 110e9090fa4SLubomir Popov cval ? "on" : "off", err); 111e9090fa4SLubomir Popov return err; 112e9090fa4SLubomir Popov } 113e9090fa4SLubomir Popov 114e9090fa4SLubomir Popov #ifdef CONFIG_PALMAS_AUDPWR 115e9090fa4SLubomir Popov /* 116e9090fa4SLubomir Popov * Turn audio codec power and 32 kHz clock on/off. Use for 117e9090fa4SLubomir Popov * testing OMAP543X + TWL603X + TWL604X boards only. 118e9090fa4SLubomir Popov */ 119e9090fa4SLubomir Popov int twl603x_audio_power(u8 on) 120e9090fa4SLubomir Popov { 121e9090fa4SLubomir Popov u8 cval = 0, vval = 0, c32k = 0; 122e9090fa4SLubomir Popov int err; 123e9090fa4SLubomir Popov 124e9090fa4SLubomir Popov if (on) { 125e9090fa4SLubomir Popov vval = SMPS_VOLT_2V1; 126e9090fa4SLubomir Popov cval = SMPS_MODE_SLP_AUTO | SMPS_MODE_ACT_AUTO; 127e9090fa4SLubomir Popov c32k = RSC_MODE_SLEEP | RSC_MODE_ACTIVE; 128e9090fa4SLubomir Popov } 129e9090fa4SLubomir Popov /* Set SMPS9 to 2.1 V (for TWL604x), or to 0 (off) */ 130e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_VOLTAGE, vval); 131e9090fa4SLubomir Popov if (err) { 132e9090fa4SLubomir Popov printf("twl603x: could not set SMPS9 voltage: err = %d\n", 133e9090fa4SLubomir Popov err); 134e9090fa4SLubomir Popov return err; 135e9090fa4SLubomir Popov } 136e9090fa4SLubomir Popov /* Turn on or off SMPS9 */ 137e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_CTRL, cval); 138e9090fa4SLubomir Popov if (err) { 139e9090fa4SLubomir Popov printf("twl603x: could not turn SMPS9 %s: err = %d\n", 140e9090fa4SLubomir Popov cval ? "on" : "off", err); 141e9090fa4SLubomir Popov return err; 142e9090fa4SLubomir Popov } 143e9090fa4SLubomir Popov /* Output 32 kHz clock on or off */ 144e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, CLK32KGAUDIO_CTRL, c32k); 145e9090fa4SLubomir Popov if (err) 146e9090fa4SLubomir Popov printf("twl603x: could not turn CLK32KGAUDIO %s: err = %d\n", 147e9090fa4SLubomir Popov c32k ? "on" : "off", err); 148e9090fa4SLubomir Popov return err; 149e9090fa4SLubomir Popov } 150e9090fa4SLubomir Popov #endif 151e9090fa4SLubomir Popov 1521bd435bcSDan Murphy #ifdef CONFIG_PALMAS_USB_SS_PWR 1531bd435bcSDan Murphy /** 1541bd435bcSDan Murphy * @brief palmas_enable_ss_ldo - Configure EVM board specific configurations 1551bd435bcSDan Murphy * for the USB Super speed SMPS10 regulator. 1561bd435bcSDan Murphy * 1571bd435bcSDan Murphy * @return 0 1581bd435bcSDan Murphy */ 1591bd435bcSDan Murphy int palmas_enable_ss_ldo(void) 1601bd435bcSDan Murphy { 1611bd435bcSDan Murphy /* Enable smps10 regulator */ 1621bd435bcSDan Murphy return palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS10_CTRL, 1631bd435bcSDan Murphy SMPS10_MODE_ACTIVE_D); 1641bd435bcSDan Murphy } 1651bd435bcSDan Murphy #endif 1661bd435bcSDan Murphy 167e9090fa4SLubomir Popov /* 168e9090fa4SLubomir Popov * Enable/disable back-up battery (or super cap) charging on TWL6035/37. 169e9090fa4SLubomir Popov * Please use defined BB_xxx values. 170e9090fa4SLubomir Popov */ 171e9090fa4SLubomir Popov int twl603x_enable_bb_charge(u8 bb_fields) 172e9090fa4SLubomir Popov { 173e9090fa4SLubomir Popov u8 val = bb_fields & 0x0f; 174e9090fa4SLubomir Popov int err; 175e9090fa4SLubomir Popov 176e9090fa4SLubomir Popov val |= (VRTC_EN_SLP | VRTC_EN_OFF | VRTC_PWEN); 177e9090fa4SLubomir Popov err = palmas_i2c_write_u8(TWL603X_CHIP_P1, BB_VRTC_CTRL, val); 178e9090fa4SLubomir Popov if (err) 179e9090fa4SLubomir Popov printf("twl603x: could not set BB_VRTC_CTRL to 0x%02x: err = %d\n", 180e9090fa4SLubomir Popov val, err); 181e9090fa4SLubomir Popov return err; 182cb199102SNishanth Menon } 183