84967b00dd
1. Add code to setup the PMIC voltages during low power modes 2. Add Zephyr power states that are supported to device tree 3. Add low power pin configration for Flash pins to pinctrl Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>
106 lines
2.4 KiB
C
106 lines
2.4 KiB
C
/*
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* Copyright 2022, NXP
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/init.h>
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#include "fsl_power.h"
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#include <zephyr/pm/policy.h>
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#if CONFIG_REGULATOR
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#include <zephyr/drivers/regulator.h>
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#define NODE_SW1 DT_NODELABEL(pca9420_sw1)
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#define NODE_SW2 DT_NODELABEL(pca9420_sw2)
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#define NODE_LDO1 DT_NODELABEL(pca9420_ldo1)
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#define NODE_LDO2 DT_NODELABEL(pca9420_ldo2)
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static const struct device *sw1 = DEVICE_DT_GET(NODE_SW1);
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static const struct device *sw2 = DEVICE_DT_GET(NODE_SW2);
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static const struct device *ldo1 = DEVICE_DT_GET(NODE_LDO1);
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static const struct device *ldo2 = DEVICE_DT_GET(NODE_LDO2);
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/* System clock frequency. */
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extern uint32_t SystemCoreClock;
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static const int32_t sw1_volt[] = {1100000, 1000000, 900000, 800000, 700000};
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static int32_t board_calc_volt_level(void)
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{
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uint32_t i;
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uint32_t volt;
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for (i = 0U; i < POWER_FREQ_LEVELS_NUM; i++) {
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if (SystemCoreClock > powerFreqLevel[i]) {
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break;
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}
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}
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/* Frequency exceed max supported */
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if (i == 0U) {
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volt = POWER_INVALID_VOLT_LEVEL;
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} else {
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volt = sw1_volt[i - 1U];
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}
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return volt;
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}
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static int board_config_pmic(const struct device *dev)
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{
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uint32_t volt;
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int ret = 0;
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volt = board_calc_volt_level();
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ret = regulator_set_voltage(sw1, volt, volt);
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if (ret != 0) {
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return ret;
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}
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ret = regulator_set_voltage(sw2, 1800000, 1800000);
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if (ret != 0) {
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return ret;
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}
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ret = regulator_set_voltage(ldo1, 1800000, 1800000);
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if (ret != 0) {
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return ret;
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}
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ret = regulator_set_voltage(ldo2, 3300000, 3300000);
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if (ret != 0) {
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return ret;
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}
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/* We can enter deep low power modes */
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pm_policy_state_lock_put(PM_STATE_SUSPEND_TO_IDLE, PM_ALL_SUBSTATES);
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return ret;
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}
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#endif
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static int mimxrt595_evk_init(const struct device *dev)
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{
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/* Set the correct voltage range according to the board. */
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power_pad_vrange_t vrange = {
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.Vdde0Range = kPadVol_171_198,
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.Vdde1Range = kPadVol_171_198,
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.Vdde2Range = kPadVol_171_198,
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.Vdde3Range = kPadVol_300_360,
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.Vdde4Range = kPadVol_171_198
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};
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POWER_SetPadVolRange(&vrange);
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/* Do not enter deep low power modes until the PMIC modes have been initialized */
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pm_policy_state_lock_get(PM_STATE_SUSPEND_TO_IDLE, PM_ALL_SUBSTATES);
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return 0;
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}
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#if CONFIG_REGULATOR
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/* PMIC setup is dependent on the regulator API */
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SYS_INIT(board_config_pmic, POST_KERNEL, CONFIG_APPLICATION_INIT_PRIORITY);
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#endif
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SYS_INIT(mimxrt595_evk_init, PRE_KERNEL_1, CONFIG_BOARD_INIT_PRIORITY);
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