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Merge branch 'bugfix/fix_uart_reset_issue_on_esp32c3' into 'master'

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bugfix(uart): reset uart0 core before uart apb reset

Closes IDF-3362

See merge request espressif/esp-idf!12749
This commit is contained in:
Michael (XIAO Xufeng)
2021-07-22 07:20:58 +00:00
parent 3277393670 6317f5b481
commit fbb6b1b11a
6 changed files with 32 additions and 9 deletions
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5
components/esp_system/port/soc/esp32c3/system_internal.c
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@@ -30,6 +30,7 @@
#include "soc/rtc_periph.h"
#include "soc/syscon_reg.h"
#include "soc/system_reg.h"
#include "soc/uart_reg.h"
#include "hal/wdt_hal.h"
#include "cache_err_int.h"
@@ -103,6 +104,10 @@ void IRAM_ATTR esp_restart_noos(void)
REG_WRITE(SYSTEM_CORE_RST_EN_REG, 0);
// Reset uart0 core first, then reset apb side.
// rom will clear this bit, as well as SYSTEM_UART_RST
SET_PERI_REG_MASK(UART_CLK_CONF_REG(0), UART_RST_CORE_M);
// Reset timer/spi/uart
SET_PERI_REG_MASK(SYSTEM_PERIP_RST_EN0_REG,
SYSTEM_TIMERS_RST | SYSTEM_SPI01_RST | SYSTEM_UART_RST);