diff --git a/components/bootloader_support/src/flash_qio_mode.c b/components/bootloader_support/src/flash_qio_mode.c index f541a26643..6c6332a568 100644 --- a/components/bootloader_support/src/flash_qio_mode.c +++ b/components/bootloader_support/src/flash_qio_mode.c @@ -267,6 +267,8 @@ IRAM_ATTR static uint32_t bootloader_flash_execute_command_common( assert(mosi_len <= 32); assert(miso_len <= 32); uint32_t old_ctrl_reg = SPIFLASH.ctrl.val; + uint32_t old_user_reg = SPIFLASH.user.val; + uint32_t old_user1_reg = SPIFLASH.user1.val; SPIFLASH.ctrl.val = SPI_WP_REG_M; // keep WP high while idle, otherwise leave DIO mode //command phase SPIFLASH.user.usr_command = 1; @@ -297,6 +299,8 @@ IRAM_ATTR static uint32_t bootloader_flash_execute_command_common( while(SPIFLASH.cmd.usr != 0) { } SPIFLASH.ctrl.val = old_ctrl_reg; + SPIFLASH.user.val = old_user_reg; + SPIFLASH.user1.val = old_user1_reg; uint32_t ret = SPIFLASH.data_buf[0]; if (miso_len < 32) {