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 --- arch/arm/mach-mvebu/Makefile | 7 +++++++ arch/arm/mach-mvebu/kwbimage.cfg.in | 3 +++ 2 files changed, 10 insertions(+)
diff --git a/arch/arm/mach-mvebu/Makefile b/arch/arm/mach-mvebu/Makefile index 9ace049c9d7c..74478a3134e3 100644 --- a/arch/arm/mach-mvebu/Makefile +++ b/arch/arm/mach-mvebu/Makefile @@ -69,6 +69,13 @@ 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) diff --git a/arch/arm/mach-mvebu/kwbimage.cfg.in b/arch/arm/mach-mvebu/kwbimage.cfg.in index 603e8863450c..ccb09975817e 100644 --- a/arch/arm/mach-mvebu/kwbimage.cfg.in +++ b/arch/arm/mach-mvebu/kwbimage.cfg.in @@ -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