ARM: dts: stm32: Add DFU support for DHCOR recovery

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@denx.de>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

1 files changed, 12 insertions, 2 deletions

diff --git a/configs/stm32mp15_dhcor_basic_defconfig b/configs/stm32mp15_dhcor_basic_defconfig
index 38b050f667..847f80ef4c 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
@@ -68,6 +74,7 @@ CONFIG_OF_SPL_REMOVE_PROPS="interrupts interrupt-names interrupts-extended inter
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 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
@@ -76,7 +83,6 @@ 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
@@ -103,18 +109,20 @@ 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
@@ -126,8 +134,10 @@ 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