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1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
145 lines
3.7 KiB
C
145 lines
3.7 KiB
C
/*
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* (C) Copyright 2012-2013
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* Texas Instruments, <www.ti.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <config.h>
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#include <palmas.h>
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void palmas_init_settings(void)
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{
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#ifdef CONFIG_PALMAS_SMPS7_FPWM
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int err;
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/*
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* Set SMPS7 (1.8 V I/O supply on platforms with TWL6035/37) to
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* forced PWM mode. This reduces noise (but affects efficiency).
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*/
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u8 val = SMPS_MODE_SLP_FPWM | SMPS_MODE_ACT_FPWM;
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err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS7_CTRL, val);
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if (err)
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printf("palmas: could not force PWM for SMPS7: err = %d\n",
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err);
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#endif
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}
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int palmas_mmc1_poweron_ldo(void)
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{
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u8 val = 0;
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#if defined(CONFIG_DRA7XX)
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/*
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* Currently valid for the dra7xx_evm board:
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* Set TPS659038 LDO1 to 3.0 V
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*/
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val = LDO_VOLT_3V0;
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if (palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_VOLTAGE, val)) {
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printf("tps65903x: could not set LDO1 voltage.\n");
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return 1;
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}
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/* TURN ON LDO1 */
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val = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
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if (palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_CTRL, val)) {
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printf("tps65903x: could not turn on LDO1.\n");
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return 1;
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}
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return 0;
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#else
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/*
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* We assume that this is a OMAP543X + TWL603X board:
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* Set TWL6035/37 LDO9 to 3.0 V
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*/
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val = LDO_VOLT_3V0;
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return twl603x_mmc1_set_ldo9(val);
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#endif
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}
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/*
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* On some OMAP5 + TWL603X hardware the SD card socket and LDO9_IN are
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* powered by an external 3.3 V regulator, while the output of LDO9
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* supplies VDDS_SDCARD for the OMAP5 interface only. This implies that
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* LDO9 could be set to 'bypass' mode when required (e.g. for 3.3 V cards).
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*/
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int twl603x_mmc1_set_ldo9(u8 vsel)
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{
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u8 cval = 0, vval = 0; /* Off by default */
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int err;
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if (vsel) {
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/* Turn on */
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if (vsel > LDO_VOLT_3V3) {
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/* Put LDO9 in bypass */
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cval = LDO9_BYP_EN | RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
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vval = LDO_VOLT_3V3;
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} else {
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cval = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
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vval = vsel & 0x3f;
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}
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}
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err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_VOLTAGE, vval);
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if (err) {
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printf("twl603x: could not set LDO9 %s: err = %d\n",
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vsel > LDO_VOLT_3V3 ? "bypass" : "voltage", err);
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return err;
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}
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err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_CTRL, cval);
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if (err)
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printf("twl603x: could not turn %s LDO9: err = %d\n",
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cval ? "on" : "off", err);
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return err;
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}
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#ifdef CONFIG_PALMAS_AUDPWR
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/*
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* Turn audio codec power and 32 kHz clock on/off. Use for
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* testing OMAP543X + TWL603X + TWL604X boards only.
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*/
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int twl603x_audio_power(u8 on)
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{
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u8 cval = 0, vval = 0, c32k = 0;
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int err;
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if (on) {
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vval = SMPS_VOLT_2V1;
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cval = SMPS_MODE_SLP_AUTO | SMPS_MODE_ACT_AUTO;
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c32k = RSC_MODE_SLEEP | RSC_MODE_ACTIVE;
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}
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/* Set SMPS9 to 2.1 V (for TWL604x), or to 0 (off) */
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err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_VOLTAGE, vval);
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if (err) {
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printf("twl603x: could not set SMPS9 voltage: err = %d\n",
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err);
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return err;
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}
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/* Turn on or off SMPS9 */
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err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_CTRL, cval);
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if (err) {
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printf("twl603x: could not turn SMPS9 %s: err = %d\n",
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cval ? "on" : "off", err);
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return err;
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}
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/* Output 32 kHz clock on or off */
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err = palmas_i2c_write_u8(TWL603X_CHIP_P1, CLK32KGAUDIO_CTRL, c32k);
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if (err)
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printf("twl603x: could not turn CLK32KGAUDIO %s: err = %d\n",
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c32k ? "on" : "off", err);
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return err;
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}
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#endif
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/*
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* Enable/disable back-up battery (or super cap) charging on TWL6035/37.
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* Please use defined BB_xxx values.
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*/
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int twl603x_enable_bb_charge(u8 bb_fields)
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{
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u8 val = bb_fields & 0x0f;
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int err;
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val |= (VRTC_EN_SLP | VRTC_EN_OFF | VRTC_PWEN);
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err = palmas_i2c_write_u8(TWL603X_CHIP_P1, BB_VRTC_CTRL, val);
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if (err)
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printf("twl603x: could not set BB_VRTC_CTRL to 0x%02x: err = %d\n",
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val, err);
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return err;
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}
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