[PATCH 0/3] rockchip: Use external TPL binary to create a working firmware image
Jonas Karlman
jonas at kwiboo.se
Sun Feb 5 21:21:21 CET 2023
Rockchip SoCs typically use U-Boot TPL to initialize DRAM, then jumps
back to boot-rom to load the next stage of the boot flow, U-Boot SPL.
For RK356x there is currently no support to initialize DRAM using U-Boot
TPL and instead an external TPL binary must be used to generate a
working u-boot-rockchip.bin image.
This adds a new generic external-tpl entry to binman and make use of
this new entry in rockchip-u-boot.dtsi.
Please note that the allow-missing flag and the added missing-msg entry
does not work as expected becuase the wrapping mkimage entry used
requires that the files to all child entries exists.
Instead without a provided EXTERNAL_TPL the build fails with:
ValueError: Filename 'ddr.bin' not found in input path (...)
originating from
Entry_mkimage.ObtainContents:
fnames.append(tools.get_input_filename(entry.GetDefaultFilename()))
Not sure how to properly add support for allow-missing flag to mkimage
entry, possible something for another series?
Regards,
Jonas
Jonas Karlman (3):
binman: Add support for an external-tpl entry
rockchip: Require an external TPL binary when TPL is missing
Revert "board: rockchip: Fix binman_init failure on EVB-RK3568"
Makefile | 1 +
arch/arm/dts/rockchip-u-boot.dtsi | 16 ++++++++++++----
configs/evb-rk3568_defconfig | 1 -
tools/binman/entries.rst | 12 ++++++++++++
tools/binman/etype/external_tpl.py | 18 ++++++++++++++++++
tools/binman/ftest.py | 7 +++++++
tools/binman/missing-blob-help | 5 +++++
tools/binman/test/277_external_tpl.dts | 16 ++++++++++++++++
8 files changed, 71 insertions(+), 5 deletions(-)
create mode 100644 tools/binman/etype/external_tpl.py
create mode 100644 tools/binman/test/277_external_tpl.dts
--
2.39.1
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