kopia lustrzana https://github.com/espressif/esp-idf
155 wiersze
5.3 KiB
C
155 wiersze
5.3 KiB
C
// Copyright 2013-2016 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include <string.h>
|
|
#include "esp_system.h"
|
|
#include "esp_private/system_internal.h"
|
|
#include "esp_attr.h"
|
|
#include "esp_efuse.h"
|
|
#include "esp_wifi.h"
|
|
#include "esp_log.h"
|
|
#include "sdkconfig.h"
|
|
#include "esp32/rom/efuse.h"
|
|
#include "esp32/rom/cache.h"
|
|
#include "esp32/rom/uart.h"
|
|
#include "soc/dport_reg.h"
|
|
#include "soc/gpio_periph.h"
|
|
#include "soc/efuse_periph.h"
|
|
#include "soc/rtc_periph.h"
|
|
#include "soc/timer_periph.h"
|
|
#include "soc/cpu.h"
|
|
#include "soc/rtc.h"
|
|
#include "soc/rtc_wdt.h"
|
|
#include "hal/timer_ll.h"
|
|
#include "freertos/xtensa_api.h"
|
|
|
|
/* "inner" restart function for after RTOS, interrupts & anything else on this
|
|
* core are already stopped. Stalls other core, resets hardware,
|
|
* triggers restart.
|
|
*/
|
|
void IRAM_ATTR esp_restart_noos(void)
|
|
{
|
|
// Disable interrupts
|
|
xt_ints_off(0xFFFFFFFF);
|
|
|
|
// Enable RTC watchdog for 1 second
|
|
rtc_wdt_protect_off();
|
|
rtc_wdt_disable();
|
|
rtc_wdt_set_stage(RTC_WDT_STAGE0, RTC_WDT_STAGE_ACTION_RESET_RTC);
|
|
rtc_wdt_set_stage(RTC_WDT_STAGE1, RTC_WDT_STAGE_ACTION_RESET_SYSTEM);
|
|
rtc_wdt_set_length_of_reset_signal(RTC_WDT_SYS_RESET_SIG, RTC_WDT_LENGTH_200ns);
|
|
rtc_wdt_set_length_of_reset_signal(RTC_WDT_CPU_RESET_SIG, RTC_WDT_LENGTH_200ns);
|
|
rtc_wdt_set_time(RTC_WDT_STAGE0, 1000);
|
|
rtc_wdt_flashboot_mode_enable();
|
|
|
|
// Reset and stall the other CPU.
|
|
// CPU must be reset before stalling, in case it was running a s32c1i
|
|
// instruction. This would cause memory pool to be locked by arbiter
|
|
// to the stalled CPU, preventing current CPU from accessing this pool.
|
|
const uint32_t core_id = xPortGetCoreID();
|
|
const uint32_t other_core_id = (core_id == 0) ? 1 : 0;
|
|
esp_cpu_reset(other_core_id);
|
|
esp_cpu_stall(other_core_id);
|
|
|
|
// Other core is now stalled, can access DPORT registers directly
|
|
esp_dport_access_int_abort();
|
|
|
|
// Disable TG0/TG1 watchdogs
|
|
timer_ll_wdt_set_protect(&TIMERG0, false);
|
|
timer_ll_wdt_set_enable(&TIMERG0, false);
|
|
timer_ll_wdt_set_protect(&TIMERG0, true);
|
|
|
|
timer_ll_wdt_set_protect(&TIMERG1, false);
|
|
timer_ll_wdt_set_enable(&TIMERG1, false);
|
|
timer_ll_wdt_set_protect(&TIMERG1, true);
|
|
|
|
// Flush any data left in UART FIFOs
|
|
uart_tx_wait_idle(0);
|
|
uart_tx_wait_idle(1);
|
|
uart_tx_wait_idle(2);
|
|
|
|
// Disable cache
|
|
Cache_Read_Disable(0);
|
|
Cache_Read_Disable(1);
|
|
|
|
// 2nd stage bootloader reconfigures SPI flash signals.
|
|
// Reset them to the defaults expected by ROM.
|
|
WRITE_PERI_REG(GPIO_FUNC0_IN_SEL_CFG_REG, 0x30);
|
|
WRITE_PERI_REG(GPIO_FUNC1_IN_SEL_CFG_REG, 0x30);
|
|
WRITE_PERI_REG(GPIO_FUNC2_IN_SEL_CFG_REG, 0x30);
|
|
WRITE_PERI_REG(GPIO_FUNC3_IN_SEL_CFG_REG, 0x30);
|
|
WRITE_PERI_REG(GPIO_FUNC4_IN_SEL_CFG_REG, 0x30);
|
|
WRITE_PERI_REG(GPIO_FUNC5_IN_SEL_CFG_REG, 0x30);
|
|
|
|
// Reset wifi/bluetooth/ethernet/sdio (bb/mac)
|
|
DPORT_SET_PERI_REG_MASK(DPORT_CORE_RST_EN_REG,
|
|
DPORT_BB_RST | DPORT_FE_RST | DPORT_MAC_RST |
|
|
DPORT_BT_RST | DPORT_BTMAC_RST | DPORT_SDIO_RST |
|
|
DPORT_SDIO_HOST_RST | DPORT_EMAC_RST | DPORT_MACPWR_RST |
|
|
DPORT_RW_BTMAC_RST | DPORT_RW_BTLP_RST);
|
|
DPORT_REG_WRITE(DPORT_CORE_RST_EN_REG, 0);
|
|
|
|
// Reset timer/spi/uart
|
|
DPORT_SET_PERI_REG_MASK(DPORT_PERIP_RST_EN_REG,
|
|
DPORT_TIMERS_RST | DPORT_SPI01_RST | DPORT_UART_RST | DPORT_UART1_RST | DPORT_UART2_RST);
|
|
DPORT_REG_WRITE(DPORT_PERIP_RST_EN_REG, 0);
|
|
|
|
// Set CPU back to XTAL source, no PLL, same as hard reset
|
|
rtc_clk_cpu_freq_set_xtal();
|
|
|
|
// Clear entry point for APP CPU
|
|
DPORT_REG_WRITE(DPORT_APPCPU_CTRL_D_REG, 0);
|
|
|
|
// Reset CPUs
|
|
if (core_id == 0) {
|
|
// Running on PRO CPU: APP CPU is stalled. Can reset both CPUs.
|
|
esp_cpu_reset(1);
|
|
esp_cpu_reset(0);
|
|
} else {
|
|
// Running on APP CPU: need to reset PRO CPU and unstall it,
|
|
// then reset APP CPU
|
|
esp_cpu_reset(0);
|
|
esp_cpu_unstall(0);
|
|
esp_cpu_reset(1);
|
|
}
|
|
while(true) {
|
|
;
|
|
}
|
|
}
|
|
|
|
void esp_chip_info(esp_chip_info_t* out_info)
|
|
{
|
|
uint32_t efuse_rd3 = REG_READ(EFUSE_BLK0_RDATA3_REG);
|
|
memset(out_info, 0, sizeof(*out_info));
|
|
|
|
out_info->model = CHIP_ESP32;
|
|
out_info->revision = esp_efuse_get_chip_ver();
|
|
|
|
if ((efuse_rd3 & EFUSE_RD_CHIP_VER_DIS_APP_CPU_M) == 0) {
|
|
out_info->cores = 2;
|
|
} else {
|
|
out_info->cores = 1;
|
|
}
|
|
out_info->features = CHIP_FEATURE_WIFI_BGN;
|
|
if ((efuse_rd3 & EFUSE_RD_CHIP_VER_DIS_BT_M) == 0) {
|
|
out_info->features |= CHIP_FEATURE_BT | CHIP_FEATURE_BLE;
|
|
}
|
|
int package = (efuse_rd3 & EFUSE_RD_CHIP_VER_PKG_M) >> EFUSE_RD_CHIP_VER_PKG_S;
|
|
if (package == EFUSE_RD_CHIP_VER_PKG_ESP32D2WDQ5 ||
|
|
package == EFUSE_RD_CHIP_VER_PKG_ESP32PICOD2 ||
|
|
package == EFUSE_RD_CHIP_VER_PKG_ESP32PICOD4) {
|
|
out_info->features |= CHIP_FEATURE_EMB_FLASH;
|
|
}
|
|
}
|