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backup dma: force clear reset signal to fix the backup dma operation failure caused by RTC_SW_CPU_RST

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This commit is contained in:
Li Shuai 2022-10-17 11:07:51 +08:00
parent f0a3ccc732
commit dbf1241ae2
1 changed files with 5 additions and 0 deletions
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5
components/esp_system/port/soc/esp32s3/clk.c
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@ -306,6 +306,11 @@ __attribute__((weak)) void esp_perip_clk_init(void)
CLEAR_PERI_REG_MASK(SYSTEM_PERIP_CLK_EN1_REG, hwcrypto_perip_clk);
SET_PERI_REG_MASK(SYSTEM_PERIP_RST_EN1_REG, hwcrypto_perip_clk);
/* Force clear backup dma reset signal. This is a fix to the backup dma
* implementation in the ROM, the reset signal was not cleared when the
* backup dma was started, which caused the backup dma operation to fail. */
CLEAR_PERI_REG_MASK(SYSTEM_PERIP_RST_EN1_REG, SYSTEM_PERI_BACKUP_RST);
/* Disable WiFi/BT/SDIO clocks. */
CLEAR_PERI_REG_MASK(SYSTEM_WIFI_CLK_EN_REG, wifi_bt_sdio_clk);
SET_PERI_REG_MASK(SYSTEM_WIFI_CLK_EN_REG, SYSTEM_WIFI_CLK_EN);