Trouble running u-boot and SPL on Digilent Genesys ZU

[Alvaro Gamez]

Hi again

El jue, 17 jun 2021 a las 15:07, Alvaro Gamez
(<alvaro.gamez at hazent.com>) escribió:
>
> Hi!
>
> I'm trying to use buildroot to generate a system for the Digilent
> Genesys ZU board, which is based on the zynqmp SOC.
> I'm having trouble getting it to boot, and I was hoping I could get
> some guidance on what to do next. My issue is basically that
> nothing seems to work, since I don't have an output at all on the
> serial console.
>
> I'm using u-boot version 2021.04, which has the latest patches from
> Luca Ceresoli that should allow booting completely via u-boot and
> u-boot SPL, without using Xilinx' FSBL. My method of cross compiling
> is via buildroot version 2021.05, which eases the process of gathering
> also Arm Trusted Firmware, building the linux kernel and filesystem, etc.
>
> Out of Digilent's reference design, Vivado/Vitis generates for me
> configuration object pm_cfg_obj.c and PSU init file psu_init_gpl.c,
> which shall be fed to u-boot. Alongside these files, I use PMU firmware
> built by Luca at
> https://github.com/lucaceresoli/zynqmp-pmufw-binaries/raw/master/bin/pmufw-v2018.3.bin
>
> To provide Arm Trusted Firmware, I'm passing buildroot the same
> configuration as already exists on configs/zynqmp_zcu106_defconfig
> which is version 1.5 of :
> https://github.com/ARM-software/arm-trusted-firmware.git
> but I don't think my board has reached the state of needing this firmware yet,
> since I don't get any SPL serial console output.
>
> The device tree I'm using is extracted from Digilent's kernel image,
> and matches perfectly with the one generated by petalinux for this
> Digilent's Vivado design, so it should be correct
>
> Provided image by Digilent follows the Xilinx' booting workflow, so
> only a BOOT.BIN file is on the sdcard which includes xilinx' FSBL, PMU
> firmware with configuration object, u-boot, kernel, device tree, etc,
> so at least I know that the board is fine as this firmware works
> flawlessly. I also was able to load the kernel and device tree as
> built by buildroot over this instance of u-boot, so at least I can
> load my own kernel, but I can't progress deeper than that.

I've been able to load u-boot proper via Xilinx FSBL, so it seems that my u-boot
configuration is not very far from what should be, but I'm still
unable to see any
reaction when trying to load SPL. I'm attaching my u-boot configuration, just
in case any of you can provide any guidance on this.

CONFIG_ARM=y
CONFIG_ARCH_ZYNQMP=y
CONFIG_SYS_TEXT_BASE=0x8000000
CONFIG_SYS_MALLOC_F_LEN=0x8000
CONFIG_ENV_OFFSET=0x100000
CONFIG_ENV_SECT_SIZE=0x20000
CONFIG_DM_GPIO=y
CONFIG_SPL=y
CONFIG_DEBUG_UART_BASE=0xFF000000
CONFIG_DEBUG_UART_CLOCK=100000000
CONFIG_XILINX_PS_INIT_FILE="/tmp/psu_init_gpl.c"
CONFIG_PMUFW_INIT_FILE="/tmp/pmufw-v2018.3.bin"
CONFIG_ZYNQMP_SPL_PM_CFG_OBJ_FILE="/tmp/pm_cfg_obj.bin"
CONFIG_ZYNQMP_USB=y
CONFIG_DEFAULT_DEVICE_TREE="zynqmp-zcu102-rev1.0"
CONFIG_DEBUG_UART=y
CONFIG_DISTRO_DEFAULTS=y
CONFIG_FIT=y
CONFIG_FIT_VERBOSE=y
CONFIG_LOG=y
# CONFIG_DISPLAY_CPUINFO is not set
CONFIG_BOARD_EARLY_INIT_R=y
CONFIG_CMD_BOOTMENU=y
CONFIG_CMD_THOR_DOWNLOAD=y
CONFIG_CMD_MEMTEST=y
CONFIG_SYS_ALT_MEMTEST=y
CONFIG_CMD_CLK=y
CONFIG_CMD_DFU=y
CONFIG_CMD_FPGA_LOADBP=y
CONFIG_CMD_FPGA_LOADP=y
CONFIG_CMD_FPGA_LOAD_SECURE=y
CONFIG_CMD_GPIO=y
CONFIG_CMD_GPT=y
CONFIG_CMD_I2C=y
CONFIG_CMD_MMC=y
CONFIG_CMD_SDRAM=y
CONFIG_CMD_SPI=y
CONFIG_CMD_USB=y
CONFIG_CMD_TFTPPUT=y
CONFIG_CMD_TIME=y
CONFIG_CMD_TIMER=y
CONFIG_CMD_EXT4_WRITE=y
CONFIG_CMD_UBI=y
CONFIG_SPL_OF_CONTROL=y
CONFIG_OF_EMBED=y
CONFIG_ENV_IS_NOWHERE=y
CONFIG_ENV_IS_IN_FAT=y
CONFIG_ENV_IS_IN_SPI_FLASH=y
CONFIG_NET_RANDOM_ETHADDR=y
CONFIG_CLK_ZYNQMP=y
CONFIG_DFU_MMC=y
CONFIG_DFU_RAM=y
CONFIG_USB_FUNCTION_FASTBOOT=y
CONFIG_FASTBOOT_FLASH=y
CONFIG_FASTBOOT_FLASH_MMC_DEV=0
CONFIG_FASTBOOT_CMD_OEM_FORMAT=y
CONFIG_FPGA_XILINX=y
CONFIG_FPGA_ZYNQMPPL=y
CONFIG_XILINX_GPIO=y
CONFIG_DM_I2C=y
CONFIG_SYS_I2C_CADENCE=y
CONFIG_I2C_MUX=y
CONFIG_I2C_MUX_PCA954x=y
CONFIG_LED=y
CONFIG_LED_GPIO=y
CONFIG_MISC=y
CONFIG_MMC_IO_VOLTAGE=y
CONFIG_MMC_UHS_SUPPORT=y
CONFIG_MMC_SDHCI=y
CONFIG_MMC_SDHCI_ZYNQ=y
CONFIG_MTD=y
CONFIG_SPI_FLASH_BAR=y
CONFIG_SPI_FLASH_ISSI=y
CONFIG_SPI_FLASH_MACRONIX=y
CONFIG_SPI_FLASH_SPANSION=y
CONFIG_SPI_FLASH_STMICRO=y
CONFIG_SPI_FLASH_WINBOND=y
# CONFIG_SPI_FLASH_USE_4K_SECTORS is not set
CONFIG_MTD_UBI_BEB_LIMIT=0
CONFIG_PHY_MARVELL=y
CONFIG_PHY_REALTEK=y
CONFIG_PHY_TI=y
CONFIG_PHY_VITESSE=y
CONFIG_PHY_FIXED=y
CONFIG_PHY_GIGE=y
CONFIG_MII=y
CONFIG_ZYNQ_GEM=y
CONFIG_DEBUG_UART_ANNOUNCE=y
CONFIG_ZYNQ_SERIAL=y
CONFIG_SPI=y
CONFIG_ZYNQMP_GQSPI=y
CONFIG_USB=y
CONFIG_USB_XHCI_HCD=y
CONFIG_USB_XHCI_DWC3=y
CONFIG_USB_DWC3=y
CONFIG_USB_DWC3_GENERIC=y
CONFIG_USB_ULPI_VIEWPORT=y
CONFIG_USB_ULPI=y
CONFIG_USB_GADGET=y
CONFIG_USB_GADGET_MANUFACTURER="Xilinx"
CONFIG_USB_GADGET_VENDOR_NUM=0x03FD
CONFIG_USB_GADGET_PRODUCT_NUM=0x0300
CONFIG_USB_FUNCTION_THOR=y
CONFIG_PANIC_HANG=y
# CONFIG_EFI_LOADER is not set


Thanks!


-- 
Álvaro Gámez Machado