mirror of
https://github.com/espressif/esp-idf.git
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120 lines
4.9 KiB
C
120 lines
4.9 KiB
C
/*
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* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <string.h>
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#include "sdkconfig.h"
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#include "esp_system.h"
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#include "esp_private/system_internal.h"
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#include "esp_attr.h"
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#include "esp_log.h"
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#include "esp_rom_sys.h"
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#include "riscv/rv_utils.h"
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#include "esp_rom_uart.h"
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#include "soc/gpio_reg.h"
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#include "esp_cpu.h"
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#include "soc/rtc.h"
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#include "soc/rtc_periph.h"
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#include "soc/uart_reg.h"
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#include "hal/wdt_hal.h"
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#include "esp_private/cache_err_int.h"
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#include "esp32c6/rom/cache.h"
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#include "esp32c6/rom/rtc.h"
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#include "soc/pcr_reg.h"
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/* "inner" restart function for after RTOS, interrupts & anything else on this
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* core are already stopped. Stalls other core, resets hardware,
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* triggers restart.
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*/
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void IRAM_ATTR esp_restart_noos(void)
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{
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// Disable interrupts
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rv_utils_intr_global_disable();
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// Enable RTC watchdog for 1 second
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wdt_hal_context_t rtc_wdt_ctx;
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wdt_hal_init(&rtc_wdt_ctx, WDT_RWDT, 0, false);
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uint32_t stage_timeout_ticks = (uint32_t)(1000ULL * rtc_clk_slow_freq_get_hz() / 1000ULL);
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wdt_hal_write_protect_disable(&rtc_wdt_ctx);
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wdt_hal_config_stage(&rtc_wdt_ctx, WDT_STAGE0, stage_timeout_ticks, WDT_STAGE_ACTION_RESET_SYSTEM);
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wdt_hal_config_stage(&rtc_wdt_ctx, WDT_STAGE1, stage_timeout_ticks, WDT_STAGE_ACTION_RESET_RTC);
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//Enable flash boot mode so that flash booting after restart is protected by the RTC WDT.
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wdt_hal_set_flashboot_en(&rtc_wdt_ctx, true);
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wdt_hal_write_protect_enable(&rtc_wdt_ctx);
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// C6 is a single core SoC, no need to reset and stall the other CPU
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// Disable TG0/TG1 watchdogs
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wdt_hal_context_t wdt0_context = {.inst = WDT_MWDT0, .mwdt_dev = &TIMERG0};
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wdt_hal_write_protect_disable(&wdt0_context);
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wdt_hal_disable(&wdt0_context);
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wdt_hal_write_protect_enable(&wdt0_context);
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wdt_hal_context_t wdt1_context = {.inst = WDT_MWDT1, .mwdt_dev = &TIMERG1};
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wdt_hal_write_protect_disable(&wdt1_context);
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wdt_hal_disable(&wdt1_context);
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wdt_hal_write_protect_enable(&wdt1_context);
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// Flush any data left in UART FIFOs
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esp_rom_uart_tx_wait_idle(0);
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esp_rom_uart_tx_wait_idle(1);
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// Disable cache
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Cache_Disable_ICache();
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// 2nd stage bootloader reconfigures SPI flash signals.
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// Reset them to the defaults expected by ROM.
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WRITE_PERI_REG(GPIO_FUNC0_IN_SEL_CFG_REG, 0x30);
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// TODO: IDF-5659
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// WRITE_PERI_REG(GPIO_FUNC1_IN_SEL_CFG_REG, 0x30);
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// WRITE_PERI_REG(GPIO_FUNC2_IN_SEL_CFG_REG, 0x30);
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// WRITE_PERI_REG(GPIO_FUNC3_IN_SEL_CFG_REG, 0x30);
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// WRITE_PERI_REG(GPIO_FUNC4_IN_SEL_CFG_REG, 0x30);
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// WRITE_PERI_REG(GPIO_FUNC5_IN_SEL_CFG_REG, 0x30);
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// Reset wifi/bluetooth/ethernet/sdio (bb/mac)
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// Moved to module internal
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// SET_PERI_REG_MASK(SYSTEM_CORE_RST_EN_REG,
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// SYSTEM_WIFIBB_RST | SYSTEM_FE_RST | // TODO: IDF-5680 (esp_phy)
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// SYSTEM_WIFIMAC_RST | // TODO: IDF-5679 (esp_wifi)
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// SYSTEM_SDIO_RST | // SDIO_HINF_HINF_SDIO_RST?
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// SYSTEM_EMAC_RST | SYSTEM_MACPWR_RST | // TODO: IDF-5325 (ethernet)
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// SYSTEM_BTBB_RST | SYSTEM_BTBB_REG_RST | // TODO: IDF-5727 (bt)
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// SYSTEM_RW_BTMAC_RST | SYSTEM_RW_BTLP_RST | SYSTEM_RW_BTMAC_REG_RST | SYSTEM_RW_BTLP_REG_RST);
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// REG_WRITE(SYSTEM_CORE_RST_EN_REG, 0);
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// Set Peripheral clk rst
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SET_PERI_REG_MASK(PCR_TIMERGROUP0_CONF_REG, PCR_TG0_RST_EN);
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SET_PERI_REG_MASK(PCR_TIMERGROUP1_CONF_REG, PCR_TG1_RST_EN);
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SET_PERI_REG_MASK(PCR_MSPI_CONF_REG, PCR_MSPI_RST_EN);
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SET_PERI_REG_MASK(PCR_UART0_CONF_REG, PCR_UART0_RST_EN);
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SET_PERI_REG_MASK(PCR_UART1_CONF_REG, PCR_UART1_RST_EN);
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SET_PERI_REG_MASK(PCR_SYSTIMER_CONF_REG, PCR_SYSTIMER_RST_EN);
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SET_PERI_REG_MASK(PCR_GDMA_CONF_REG, PCR_GDMA_RST_EN);
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SET_PERI_REG_MASK(PCR_SDIO_SLAVE_CONF_REG, PCR_SDIO_SLAVE_RST_EN);
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SET_PERI_REG_MASK(PCR_MODEM_APB_CONF_REG, PCR_MODEM_RST_EN);
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// Clear Peripheral clk rst
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CLEAR_PERI_REG_MASK(PCR_TIMERGROUP0_CONF_REG, PCR_TG0_RST_EN);
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CLEAR_PERI_REG_MASK(PCR_TIMERGROUP1_CONF_REG, PCR_TG1_RST_EN);
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CLEAR_PERI_REG_MASK(PCR_MSPI_CONF_REG, PCR_MSPI_RST_EN);
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CLEAR_PERI_REG_MASK(PCR_UART0_CONF_REG, PCR_UART0_RST_EN);
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CLEAR_PERI_REG_MASK(PCR_UART1_CONF_REG, PCR_UART1_RST_EN);
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CLEAR_PERI_REG_MASK(PCR_SYSTIMER_CONF_REG, PCR_SYSTIMER_RST_EN);
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CLEAR_PERI_REG_MASK(PCR_GDMA_CONF_REG, PCR_GDMA_RST_EN);
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CLEAR_PERI_REG_MASK(PCR_SDIO_SLAVE_CONF_REG, PCR_SDIO_SLAVE_RST_EN);
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CLEAR_PERI_REG_MASK(PCR_MODEM_APB_CONF_REG, PCR_MODEM_RST_EN);
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// Set CPU back to XTAL source, no PLL, same as hard reset
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#if !CONFIG_IDF_ENV_FPGA
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rtc_clk_cpu_freq_set_xtal();
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#endif
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// Reset PRO CPU
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esp_rom_software_reset_cpu(0);
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while (true) {
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;
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}
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}
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