/* * (C) Copyright 2012-2013 * Texas Instruments, <www.ti.com> * * SPDX-License-Identifier: GPL-2.0+ */ #include <config.h> #include <palmas.h> void palmas_init_settings(void) { #ifdef CONFIG_PALMAS_SMPS7_FPWM int err; /* * Set SMPS7 (1.8 V I/O supply on platforms with TWL6035/37) to * forced PWM mode. This reduces noise (but affects efficiency). */ u8 val = SMPS_MODE_SLP_FPWM | SMPS_MODE_ACT_FPWM; err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS7_CTRL, val); if (err) printf("palmas: could not force PWM for SMPS7: err = %d\n", err); #endif } int palmas_mmc1_poweron_ldo(void) { u8 val = 0; #if defined(CONFIG_DRA7XX) /* * Currently valid for the dra7xx_evm board: * Set TPS659038 LDO1 to 3.0 V */ val = LDO_VOLT_3V0; if (palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_VOLTAGE, val)) { printf("tps65903x: could not set LDO1 voltage.\n"); return 1; } /* TURN ON LDO1 */ val = RSC_MODE_SLEEP | RSC_MODE_ACTIVE; if (palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_CTRL, val)) { printf("tps65903x: could not turn on LDO1.\n"); return 1; } return 0; #else /* * We assume that this is a OMAP543X + TWL603X board: * Set TWL6035/37 LDO9 to 3.0 V */ val = LDO_VOLT_3V0; return twl603x_mmc1_set_ldo9(val); #endif } /* * On some OMAP5 + TWL603X hardware the SD card socket and LDO9_IN are * powered by an external 3.3 V regulator, while the output of LDO9 * supplies VDDS_SDCARD for the OMAP5 interface only. This implies that * LDO9 could be set to 'bypass' mode when required (e.g. for 3.3 V cards). */ int twl603x_mmc1_set_ldo9(u8 vsel) { u8 cval = 0, vval = 0; /* Off by default */ int err; if (vsel) { /* Turn on */ if (vsel > LDO_VOLT_3V3) { /* Put LDO9 in bypass */ cval = LDO9_BYP_EN | RSC_MODE_SLEEP | RSC_MODE_ACTIVE; vval = LDO_VOLT_3V3; } else { cval = RSC_MODE_SLEEP | RSC_MODE_ACTIVE; vval = vsel & 0x3f; } } err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_VOLTAGE, vval); if (err) { printf("twl603x: could not set LDO9 %s: err = %d\n", vsel > LDO_VOLT_3V3 ? "bypass" : "voltage", err); return err; } err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_CTRL, cval); if (err) printf("twl603x: could not turn %s LDO9: err = %d\n", cval ? "on" : "off", err); return err; } #ifdef CONFIG_PALMAS_AUDPWR /* * Turn audio codec power and 32 kHz clock on/off. Use for * testing OMAP543X + TWL603X + TWL604X boards only. */ int twl603x_audio_power(u8 on) { u8 cval = 0, vval = 0, c32k = 0; int err; if (on) { vval = SMPS_VOLT_2V1; cval = SMPS_MODE_SLP_AUTO | SMPS_MODE_ACT_AUTO; c32k = RSC_MODE_SLEEP | RSC_MODE_ACTIVE; } /* Set SMPS9 to 2.1 V (for TWL604x), or to 0 (off) */ err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_VOLTAGE, vval); if (err) { printf("twl603x: could not set SMPS9 voltage: err = %d\n", err); return err; } /* Turn on or off SMPS9 */ err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_CTRL, cval); if (err) { printf("twl603x: could not turn SMPS9 %s: err = %d\n", cval ? "on" : "off", err); return err; } /* Output 32 kHz clock on or off */ err = palmas_i2c_write_u8(TWL603X_CHIP_P1, CLK32KGAUDIO_CTRL, c32k); if (err) printf("twl603x: could not turn CLK32KGAUDIO %s: err = %d\n", c32k ? "on" : "off", err); return err; } #endif #ifdef CONFIG_PALMAS_USB_SS_PWR /** * @brief palmas_enable_ss_ldo - Configure EVM board specific configurations * for the USB Super speed SMPS10 regulator. * * @return 0 */ int palmas_enable_ss_ldo(void) { /* Enable smps10 regulator */ return palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS10_CTRL, SMPS10_MODE_ACTIVE_D); } #endif /* * Enable/disable back-up battery (or super cap) charging on TWL6035/37. * Please use defined BB_xxx values. */ int twl603x_enable_bb_charge(u8 bb_fields) { u8 val = bb_fields & 0x0f; int err; val |= (VRTC_EN_SLP | VRTC_EN_OFF | VRTC_PWEN); err = palmas_i2c_write_u8(TWL603X_CHIP_P1, BB_VRTC_CTRL, val); if (err) printf("twl603x: could not set BB_VRTC_CTRL to 0x%02x: err = %d\n", val, err); return err; }