start u-boot in versatile express ARM

start u-boot in versatile express ARM

first all,... compile it and get the u-boot binary executable

[mariotpc@fedora31 u-boot]$ make vexpress_ca9x4_defconfig CROSS_COMPILE=~/Downloads/arm/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/arm-linux-gnueabihf-
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/kconfig/conf.o
  YACC    scripts/kconfig/zconf.tab.c
  LEX     scripts/kconfig/zconf.lex.c
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
#
# configuration written to .config
#
[mariotpc@fedora31 u-boot]$ make CROSS_COMPILE=~/Downloads/arm/gcc-arm-8.3-2019.03-x86_64-arm-linux-gnueabihf/bin/arm-linux-gnueabihf-
scripts/kconfig/conf  --syncconfig Kconfig
  UPD     include/config.h
  CFG     u-boot.cfg
  GEN     include/autoconf.mk

..
..
 OBJCOPY examples/standalone/hello_world.srec
  OBJCOPY examples/standalone/hello_world.bin
  LDS     u-boot.lds
  LD      u-boot
  OBJCOPY u-boot.srec
  OBJCOPY u-boot-nodtb.bin
  COPY    u-boot.bin
  SYM     u-boot.sym
¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡


[mariotpc@fedora31 u-boot]$ qemu-system-arm -machine vexpress-a9 -serial stdio -nographic -no-reboot -kernel u-boot
QEMU 4.1.1 monitor - type 'help' for more information
(qemu) qemu-system-arm: -serial stdio: cannot use stdio by multiple character devices
qemu-system-arm: -serial stdio: could not connect serial device to character backend 'stdio'
[mariotpc@fedora31 u-boot]$ qemu-system-arm -machine vexpress-a9 -nographic -no-reboot -kernel u-boot
pulseaudio: set_sink_input_volume() failed
pulseaudio: Reason: Invalid argument
pulseaudio: set_sink_input_mute() failed
pulseaudio: Reason: Invalid argument


U-Boot 2020.10-rc2-00140-g789bfb5266 (Aug 20 2020 - 12:34:12 -0600)

DRAM:  128 MiB
WARNING: Caches not enabled
Flash: 128 MiB
MMC:   MMC: 0
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   smc911x-0
Hit any key to stop autoboot:  0 
MMC Device 1 not found