[PATCH 2/2] ARM: dts: stm32: Add DFU support for DHCOR recovery

Patrice CHOTARD patrice.chotard at foss.st.com
Tue Dec 7 11:02:16 CET 2021


Hi Marek

On 12/6/21 9:58 PM, Marek Vasut wrote:
> This patch configures U-Boot SPL for DHCOR SoM to permit DFU upload of
> SPL and subsequent u-boot.itb for recovery or commissioning purposes.
> 
> To start U-Boot on DHCOR based board, e.g. Avenger96, proceed as follows:
> - Install dfu-util on the host PC (in debian this is package 'dfu-util')
> 
> - Power off the Avenger96 board.
> - Connect both USB-serial console and USB-OTG microB ports to host PC.
> - Switch Avenger96 to USB boot mode -- BOOT0..2 switches all set to 0.
> - Power on the Avenger96 board.
> - Verify using '$ dmesg' that a new device has been detected as follows:
>     New USB device found, idVendor=0483, idProduct=df11, bcdDevice= 2.00
>     New USB device strings: Mfr=1, Product=2, SerialNumber=3
>     Product: DFU in HS Mode @Device ID /0x500, @Revision ID /0x0000
>     Manufacturer: STMicroelectronics
> 
> - Upload U-Boot SPL:
> $ dfu-util -a 1 -D u-boot-spl.stm32
> - Upload U-Boot proper:
> $ dfu-util -a 0 -D u-boot.itb
> 
> - At this point, SPL will wait for user to press "Ctrl-C" on serial
>   console. When ready to interact with U-Boot, press Ctrl-C to start
>   the bootloader.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Patrice Chotard <patrice.chotard at foss.st.com>
> Cc: Patrick Delaunay <patrick.delaunay at foss.st.com>
> ---
>  arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi | 42 ++++++++++++++++++++++
>  configs/stm32mp15_dhcor_basic_defconfig    | 14 ++++++--
>  include/configs/stm32mp15_dh_dhsom.h       |  7 ++++
>  3 files changed, 61 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi b/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi
> index 502cd95da05..71375510b4a 100644
> --- a/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi
> +++ b/arch/arm/dts/stm32mp15xx-dhcor-u-boot.dtsi
> @@ -27,6 +27,7 @@
>  
>  &i2c4 {
>  	u-boot,dm-pre-reloc;
> +	u-boot,dm-spl;
>  };
>  
>  &i2c4_pins_a {
> @@ -38,6 +39,15 @@
>  
>  &pmic {
>  	u-boot,dm-pre-reloc;
> +	u-boot,dm-spl;
> +
> +	regulators {
> +		u-boot,dm-spl;
> +	};
> +};
> +
> +&pwr_regulators {
> +	u-boot,dm-spl;
>  };
>  
>  &qspi {
> @@ -152,3 +162,35 @@
>  		u-boot,dm-pre-reloc;
>  	};
>  };
> +
> +&reg11 {
> +	u-boot,dm-spl;
> +};
> +
> +&reg18 {
> +	u-boot,dm-spl;
> +};
> +
> +&usbotg_hs {
> +	u-boot,dm-spl;
> +};
> +
> +&usbphyc {
> +	u-boot,dm-spl;
> +};
> +
> +&usbphyc_port0 {
> +	u-boot,dm-spl;
> +};
> +
> +&usbphyc_port1 {
> +	u-boot,dm-spl;
> +};
> +
> +&vdd_io {
> +	u-boot,dm-spl;
> +};
> +
> +&vdd_usb {
> +	u-boot,dm-spl;
> +};
> diff --git a/configs/stm32mp15_dhcor_basic_defconfig b/configs/stm32mp15_dhcor_basic_defconfig
> index 2356de76baf..87980d2570d 100644
> --- a/configs/stm32mp15_dhcor_basic_defconfig
> +++ b/configs/stm32mp15_dhcor_basic_defconfig
> @@ -16,6 +16,7 @@ CONFIG_DISTRO_DEFAULTS=y
>  CONFIG_SYS_LOAD_ADDR=0xc2000000
>  CONFIG_FIT=y
>  CONFIG_SPL_LOAD_FIT=y
> +CONFIG_SPL_LOAD_FIT_ADDRESS=0xc1000000
>  CONFIG_SPL_FIT_SOURCE="board/dhelectronics/dh_stm32mp1/u-boot-dhcor.its"
>  # CONFIG_USE_SPL_FIT_GENERATOR is not set
>  CONFIG_BOOTDELAY=1
> @@ -25,12 +26,17 @@ CONFIG_BOARD_EARLY_INIT_F=y
>  CONFIG_SPL_LEGACY_IMAGE_SUPPORT=y
>  CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION=y
>  CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION=3
> +CONFIG_SPL_ENV_SUPPORT=y
>  CONFIG_SPL_I2C=y
>  CONFIG_SPL_MTD_SUPPORT=y
>  CONFIG_SPL_DM_SPI_FLASH=y
>  CONFIG_SPL_POWER=y
> +CONFIG_SPL_RAM_SUPPORT=y
> +CONFIG_SPL_RAM_DEVICE=y
>  CONFIG_SPL_SPI_FLASH_MTD=y
>  CONFIG_SYS_SPI_U_BOOT_OFFS=0x80000
> +CONFIG_SPL_USB_GADGET=y
> +CONFIG_SPL_DFU=y
>  CONFIG_SYS_PROMPT="STM32MP> "
>  # CONFIG_CMD_ELF is not set
>  # CONFIG_CMD_EXPORTENV is not set
> @@ -76,6 +82,7 @@ CONFIG_USE_ENV_SPI_MODE=y
>  CONFIG_ENV_SPI_MODE=0x0
>  CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
>  CONFIG_SYS_RELOC_GD_ENV_ADDR=y
> +CONFIG_SPL_ENV_IS_NOWHERE=y
>  CONFIG_NET_RANDOM_ETHADDR=y
>  CONFIG_IP_DEFRAG=y
>  CONFIG_TFTP_BLOCKSIZE=1536
> @@ -84,7 +91,6 @@ CONFIG_SPL_BLOCK_CACHE=y
>  CONFIG_DFU_MMC=y
>  CONFIG_DFU_MTD=y
>  CONFIG_DFU_RAM=y
> -CONFIG_DFU_VIRT=y
>  CONFIG_GPIO_HOG=y
>  CONFIG_DM_HWSPINLOCK=y
>  CONFIG_HWSPINLOCK_STM32=y
> @@ -113,18 +119,20 @@ CONFIG_PHY_MICREL_KSZ90X1=y
>  CONFIG_DM_ETH=y
>  CONFIG_DWC_ETH_QOS=y
>  CONFIG_PHY=y
> +CONFIG_SPL_PHY=y
>  CONFIG_PHY_STM32_USBPHYC=y
>  CONFIG_PINCONF=y
>  # CONFIG_SPL_PINCTRL_FULL is not set
>  CONFIG_PINCTRL_STMFX=y
>  CONFIG_DM_PMIC=y
> -# CONFIG_SPL_PMIC_CHILDREN is not set
>  CONFIG_PMIC_STPMIC1=y
>  CONFIG_DM_REGULATOR=y
> +CONFIG_SPL_DM_REGULATOR=y
>  CONFIG_DM_REGULATOR_FIXED=y
>  CONFIG_DM_REGULATOR_GPIO=y
>  CONFIG_DM_REGULATOR_STM32_VREFBUF=y
>  CONFIG_DM_REGULATOR_STPMIC1=y
> +CONFIG_SPL_DM_REGULATOR_STPMIC1=y
>  CONFIG_REMOTEPROC_STM32_COPRO=y
>  CONFIG_DM_RTC=y
>  CONFIG_RTC_STM32=y
> @@ -136,8 +144,10 @@ CONFIG_STM32_SPI=y
>  CONFIG_SYSRESET_SYSCON=y
>  CONFIG_USB=y
>  CONFIG_DM_USB_GADGET=y
> +CONFIG_SPL_DM_USB_GADGET=y
>  CONFIG_USB_EHCI_HCD=y
>  CONFIG_USB_EHCI_GENERIC=y
> +CONFIG_USB_DWC2=y
>  CONFIG_USB_HOST_ETHER=y
>  CONFIG_USB_ETHER_ASIX=y
>  CONFIG_USB_GADGET=y
> diff --git a/include/configs/stm32mp15_dh_dhsom.h b/include/configs/stm32mp15_dh_dhsom.h
> index d2fe923a33b..9e7d4b8144f 100644
> --- a/include/configs/stm32mp15_dh_dhsom.h
> +++ b/include/configs/stm32mp15_dh_dhsom.h
> @@ -8,6 +8,13 @@
>  #ifndef __CONFIG_STM32MP15_DH_DHSOM_H__
>  #define __CONFIG_STM32MP15_DH_DHSOM_H__
>  
> +#ifdef CONFIG_SPL_BUILD
> +#define CONFIG_EXTRA_ENV_SETTINGS					\
> +	"dfu_alt_info_ram=u-boot.itb ram "				\
> +			__stringify(CONFIG_SPL_LOAD_FIT_ADDRESS)	\
> +			" 0x800000\0"
> +#endif
> +
>  #define STM32MP_BOARD_EXTRA_ENV \
>  	"usb_pgood_delay=1000\0" \
>  	"update_sf=" /* Erase SPI NOR and install U-Boot from SD */	\
> 

Reviewed-by: Patrice Chotard <patrice.chotard at foss.st.com>
Thanks
Patrice


More information about the U-Boot mailing list