Thanks for your answer.
​
Through your answers, I learned the function of the PA13 and PA14.
​
​But there is something I can't understand.
There is no connection of PA13 to PA14 in the schematic of my board.
And the relevant part of my CubeMX Device tree is as follows.
{
/* USER CODE BEGIN root */
aliases{
i2c3 = &i2c4;
mmc0 = &sdmmc1;
mmc1 = &sdmmc2;
i2c1 = &i2c2;
i2c4 = &i2c5;
spi0 = &qspi;
usb0 = &usbotg_hs;
};
config{
u-boot,boot-led = "heartbeat";
u-boot,error-led = "error";
u-boot,mmc-env-partition = "ssbl";
st,fastboot-gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
st,stm32prog-gpios = <&gpioa 14 GPIO_ACTIVE_LOW>;
};
led{
red{
label = "error";
gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
default-state = "off";
status = "okay";
};
};
/* USER CODE END root */
clocks {
u-boot,dm-pre-reloc;
/* USER CODE BEGIN clocks */
/* USER CODE END clocks */
#ifndef CONFIG_STM32MP1_TRUSTED
clk_lsi: clk-lsi {
u-boot,dm-pre-reloc;
/* USER CODE BEGIN clk_lsi */
/* USER CODE END clk_lsi */
};
clk_hsi: clk-hsi {
u-boot,dm-pre-reloc;
/* USER CODE BEGIN clk_hsi */
/* USER CODE END clk_hsi */
};
clk_csi: clk-csi {
u-boot,dm-pre-reloc;
status = "disabled";
/* USER CODE BEGIN clk_csi */
/* USER CODE END clk_csi */
};
clk_lse: clk-lse {
u-boot,dm-pre-reloc;
st,drive = < LSEDRV_MEDIUM_HIGH >;
/* USER CODE BEGIN clk_lse */
/* USER CODE END clk_lse */
};
clk_hse: clk-hse {
u-boot,dm-pre-reloc;
st,digbypass;
/* USER CODE BEGIN clk_hse */
/* USER CODE END clk_hse */
};
#endif /*CONFIG_STM32MP1_TRUSTED*/
};
}; /*root*/So I want to completely disable the function you mentioned.
However, the CONFIG_FASTBOOT does not exist in any ST base layer.
How do I disable that feature? Please provide guidelines.
​
And what happens when you remove the line below?
I want to completely remove it.
st,fastboot-gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
st,stm32prog-gpios = <&gpioa 14 GPIO_ACTIVE_LOW>;I need your help​
Thanks
