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arm: mvebu: Enable BootROM output on A38x

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BootROMs on pre-A38x SoCs enabled its output on UART by default, but A38x'
BootROM has its output on UART disabled by default.

To enable BootROM output on A38x SoC, it is required to set DEBUG flag
(which only enables BootROM output and nothing more) in kwbimage. For UART
images this DEBUG flag is ignored by BootROM.

Enable kwbimage DEBUG flag for all A38x boards.

With this change BootROM prints the following (success) information on UART
before booting U-Boot kwbimage:

  BootROM - 1.73
  Booting from SPI flash

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Pali Rohár 2022-01-12 18:20:47 +01:00 committed by Stefan Roese
parent bdf8c9f219
commit 18d85d6e8a
2 changed files with 10 additions and 0 deletions
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7
arch/arm/mach-mvebu/Makefile
View file

@ -70,6 +70,13 @@ KWB_REPLACE += SEC_FUSE_DUMP
KWB_CFG_SEC_FUSE_DUMP = a38x
endif
ifdef CONFIG_ARMADA_38X
# BootROM output is by default enabled on pre-A38x and disabled on A38x
# DEBUG flag on A38x for non-UART boot source only enable BootROM output and nothing more
KWB_REPLACE += DEBUG
KWB_CFG_DEBUG = 1
endif
quiet_cmd_kwbcfg = KWBCFG $@
cmd_kwbcfg = sed -ne '$(foreach V,$(KWB_REPLACE),s/\#@$(V)/$(V) $(KWB_CFG_$(V))/;)p' \
<$< >$(dir $@)$(@F)

3
arch/arm/mach-mvebu/kwbimage.cfg.in
View file

@ -11,5 +11,8 @@ VERSION 1
# Boot Media configurations
#@BOOT_FROM
# Enable BootROM output via DEBUG flag on SoCs which require it
#@DEBUG
# Include U-Boot SPL with DDR3 training code into Binary Header
BINARY spl/u-boot-spl.bin #@LOAD_ADDRESS