525 lines
14 KiB
C
525 lines
14 KiB
C
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/****************************************************************************
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* configs/spresense/src/cxd56_power.c
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*
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* Copyright 2018 Sony Semiconductor Solutions Corporation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name of Sony Semiconductor Solutions Corporation nor
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* the names of its contributors may be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/types.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <errno.h>
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#include <assert.h>
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#include <debug.h>
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#include <semaphore.h>
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#include <nuttx/arch.h>
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#include "chip.h"
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#include "up_arch.h"
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#include <arch/chip/pm.h>
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#include <arch/board/board.h>
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#include "cxd56_pmic.h"
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#include "cxd56_pinconfig.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Private Types
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****************************************************************************/
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/****************************************************************************
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* Private Data
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****************************************************************************/
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static sem_t g_ltsem = SEM_INITIALIZER(1);
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static bool g_used_lna = true;
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static bool g_used_tcxo = true;
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#ifdef CONFIG_BOARDCTL_RESET
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static struct pm_cpu_freqlock_s g_hv_lock =
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PM_CPUFREQLOCK_INIT(PM_CPUFREQLOCK_TAG('B','P',0), PM_CPUFREQLOCK_FLAG_HV);
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#endif
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: board_pmic_read
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*
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* Description:
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* Read the value from the specified sub address
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*
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* Input Parameter:
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* addr - sub address
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* buf - pointer to read buffer
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* size - byte count of read
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*
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* Returned Value:
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* Return 0 on success. Otherwise, return a negated errno.
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*
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****************************************************************************/
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int board_pmic_read(uint8_t addr, void *buf, uint32_t size)
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{
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return cxd56_pmic_read(addr, buf, size);
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}
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/****************************************************************************
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* Name: board_pmic_write
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*
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* Description:
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* Write the value to the specified sub address
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*
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* Input Parameter:
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* addr - sub address
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* buf - pointer to write buffer
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* size - byte count of write
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*
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* Returned Value:
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* Return 0 on success. Otherwise, return a negated errno.
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*
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****************************************************************************/
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int board_pmic_write(uint8_t addr, void *buf, uint32_t size)
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{
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return cxd56_pmic_write(addr, buf, size);
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}
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/****************************************************************************
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* Name: board_power_setup
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*
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* Description:
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* Initial setup for board-specific power control
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*
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****************************************************************************/
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int board_power_setup(int status)
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{
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#ifdef CONFIG_BOARD_USB_DISABLE_IN_DEEP_SLEEPING
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uint8_t val;
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uint32_t bootcause;
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/* Enable USB after wakeup from deep sleeping */
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bootcause = up_pm_get_bootcause();
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switch (bootcause)
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{
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case PM_BOOT_DEEP_WKUPL:
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case PM_BOOT_DEEP_WKUPS:
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case PM_BOOT_DEEP_RTC:
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case PM_BOOT_DEEP_OTHERS:
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cxd56_pmic_read(PMIC_REG_CNT_USB2, &val, sizeof(val));
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if (val & PMIC_SET_CHGOFF)
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{
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val &= ~PMIC_SET_CHGOFF;
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cxd56_pmic_write(PMIC_REG_CNT_USB2, &val, sizeof(val));
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}
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break;
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default:
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break;
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}
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#endif
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/* Disable unused DDC/LDO permanently */
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board_power_control(POWER_DDC_ANA | POWER_LDO_PERI, false);
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/* Disable unnecessary load switch in boot-up stage */
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board_power_control(POWER_AUDIO_DVDD, false);
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/* Power off all of GPO switches (except for GPO0) in boot-up stage */
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board_power_control(PMIC_GPO(1) | PMIC_GPO(2) | PMIC_GPO(3) | PMIC_GPO(4) |
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PMIC_GPO(5) | PMIC_GPO(6) | PMIC_GPO(7), false);
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/* Set GPO0 to Hi-Z */
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cxd56_pmic_set_gpo_hiz(PMIC_GET_CH(PMIC_GPO(0)));
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return 0;
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}
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/****************************************************************************
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* Name: board_power_control
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*
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* Description:
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* Power on/off the device on the board.
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*
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****************************************************************************/
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int board_power_control(int target, bool en)
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{
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int ret = 0;
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int (*pfunc)(uint8_t chset, bool en) = NULL;
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switch (PMIC_GET_TYPE(target))
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{
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#ifdef CONFIG_CXD56_PMIC
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case PMIC_TYPE_LSW:
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pfunc = cxd56_pmic_set_loadswitch;
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break;
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case PMIC_TYPE_GPO:
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pfunc = cxd56_pmic_set_gpo;
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break;
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case PMIC_TYPE_DDCLDO:
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pfunc = cxd56_pmic_set_ddc_ldo;
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break;
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#endif /* CONFIG_CXD56_PMIC */
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default:
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break;
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}
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if (pfunc)
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{
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ret = pfunc(PMIC_GET_CH(target), en);
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}
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return ret;
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}
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/****************************************************************************
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* Name: board_power_monitor
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*
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* Description:
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* Get status of Power on/off the device on the board.
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*
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****************************************************************************/
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bool board_power_monitor(int target)
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{
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bool ret = false;
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bool (*pfunc)(uint8_t chset) = NULL;
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switch (PMIC_GET_TYPE(target))
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{
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#ifdef CONFIG_CXD56_PMIC
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case PMIC_TYPE_LSW:
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pfunc = cxd56_pmic_get_loadswitch;
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break;
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case PMIC_TYPE_GPO:
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pfunc = cxd56_pmic_get_gpo;
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break;
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case PMIC_TYPE_DDCLDO:
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pfunc = cxd56_pmic_get_ddc_ldo;
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break;
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#endif /* CONFIG_CXD56_PMIC */
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default:
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break;
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}
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if (pfunc)
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{
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ret = pfunc(PMIC_GET_CH(target));
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}
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return ret;
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}
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/****************************************************************************
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* Name: board_flash_power_control
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*
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* Description:
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* Power on/off the flash device on the board.
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*
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****************************************************************************/
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int board_flash_power_control(bool en)
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{
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int ret = 0;
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if (en)
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{
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/* power on */
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board_power_control(POWER_FLASH, true);
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/* pin enable */
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CXD56_PIN_CONFIGS(PINCONFS_SPI1);
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}
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else
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{
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/* pin disable */
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CXD56_PIN_CONFIGS(PINCONFS_SPI1_GPIO);
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/* power off */
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board_power_control(POWER_FLASH, false);
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}
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return ret;
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}
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/****************************************************************************
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* Name: board_flash_power_monitor
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*
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* Description:
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* Get status of Power on/off the flash device on the board.
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*
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****************************************************************************/
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bool board_flash_power_monitor(void)
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{
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return board_power_monitor(POWER_FLASH);
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}
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/****************************************************************************
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* Name: board_xtal_power_control
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*
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* Description:
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* Power on/off the Xtal device on the board.
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*
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****************************************************************************/
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int board_xtal_power_control(bool en)
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{
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int ret = 0;
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/* Get exclusive access to the lna / tcxo power control */
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sem_wait(&g_ltsem);
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if (en)
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{
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/* power on */
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board_power_control(POWER_TCXO, true);
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/* set used flag */
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g_used_tcxo = true;
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}
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else
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{
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/* power off */
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if (!g_used_lna)
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{
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board_power_control(POWER_TCXO, false);
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}
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/* unset used flag */
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g_used_tcxo = false;
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}
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sem_post(&g_ltsem);
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return ret;
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}
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/****************************************************************************
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* Name: board_xtal_power_monitor
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*
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* Description:
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* Get status of Power on/off the Xtal device on the board.
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*
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****************************************************************************/
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bool board_xtal_power_monitor(void)
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{
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return board_power_monitor(POWER_TCXO);
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}
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/****************************************************************************
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* Name: board_lna_power_control
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*
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* Description:
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* Power on/off the LNA device on the board.
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*
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****************************************************************************/
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int board_lna_power_control(bool en)
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{
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int ret = 0;
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/* Get exclusive access to the lna / tcxo power control */
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sem_wait(&g_ltsem);
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if (en)
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{
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/* power on */
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board_power_control(POWER_LNA, true);
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/* set used flag */
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g_used_lna = true;
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}
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else
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{
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/* power off */
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if (!g_used_tcxo)
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{
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board_power_control(POWER_LNA, false);
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}
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/* unset used flag */
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g_used_lna = false;
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}
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sem_post(&g_ltsem);
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return ret;
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}
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/****************************************************************************
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* Name: board_reset
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*
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* Description:
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* Reset board. This function may or may not be supported by a
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* particular board architecture.
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*
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* Input Parameters:
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* status - Status information provided with the reset event. This
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* meaning of this status information is board-specific. If not used by
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* a board, the value zero may be provided in calls to board_reset.
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*
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* Returned Value:
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* If this function returns, then it was not possible to power-off the
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* board due to some constraints. The return value int this case is a
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* board-specific reason for the failure to shutdown.
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*
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* Assumptions:
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* Must not compile up_systemreset.c to avoid duplication symbol definition
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*
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****************************************************************************/
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#ifdef CONFIG_BOARDCTL_RESET
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int board_reset(int status)
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{
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/* Restore the original state for bootup after power cycle */
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board_xtal_power_control(true);
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board_flash_power_control(true);
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up_pm_acquire_freqlock(&g_hv_lock);
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/* System reboot */
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up_pm_reboot(); /* this function never returns */
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return 0;
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}
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#endif
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/****************************************************************************
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* Name: board_power_off
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*
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* Description:
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* Power off the board.
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*
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* If this function returns, then it was not possible to power-off the
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* board due to some other constraints.
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*
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* Input Parameters:
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* status - Status information provided with the power off event.
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* This status is used as the power shutdown level.
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* 0= Deep Sleep, 1= Cold Sleep
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*
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* Returned Value:
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* If this function returns, then it was not possible to power-off the
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* board due to some constraints. The return value int this case is a
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* board-specific reason for the failure to shutdown.
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*
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****************************************************************************/
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#ifdef CONFIG_BOARDCTL_POWEROFF
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int board_power_off(int status)
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{
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enum pm_sleepmode_e mode;
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uint8_t val;
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|
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/* Power off explicitly because GPOs are kept during deep sleeping */
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board_power_control(PMIC_GPO(0) | PMIC_GPO(1) | PMIC_GPO(2) | PMIC_GPO(3) |
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||
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PMIC_GPO(4) | PMIC_GPO(5) | PMIC_GPO(6) | PMIC_GPO(7),
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false);
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/* Set DDC_ANA output to HiZ before sleeping for power saving */
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||
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val = PMIC_PM_HIZ | PMIC_IOST_DEF | PMIC_IOMAX_DEF;
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cxd56_pmic_write(PMIC_REG_DDC_ANA1, &val, sizeof(val));
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|
if (BOARD_POWEROFF_COLD == status)
|
||
|
{
|
||
|
/* Flash power off */
|
||
|
|
||
|
board_flash_power_control(false);
|
||
|
|
||
|
/* Enter cold sleep mode */
|
||
|
|
||
|
mode = PM_SLEEP_COLD;
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
#ifdef CONFIG_BOARD_USB_DISABLE_IN_DEEP_SLEEPING
|
||
|
/* Disable USB detection to enter deep sleep with USB attached */
|
||
|
|
||
|
val = PMIC_SET_CHGOFF;
|
||
|
cxd56_pmic_write(PMIC_REG_CNT_USB2, &val, sizeof(val));
|
||
|
#endif
|
||
|
|
||
|
/* Enter deep sleep mode */
|
||
|
|
||
|
mode = PM_SLEEP_DEEP;
|
||
|
}
|
||
|
|
||
|
/* this function never returns */
|
||
|
|
||
|
up_pm_sleep(mode);
|
||
|
|
||
|
return 0;
|
||
|
}
|
||
|
#endif
|