Based on several reports and discussions it is clear that U-Boot's footprint is always a concern, and any kind of reduction is an improvement.
This series is a proposal to help reducing the footprint by parsing information provided in DT and drivers in different ways and adding additional intelligence to dtoc. The current version implements the basic functionality in dtoc but this is no fully integrated, however it will allow us to discuss this approach.
Firstly, based on the compatible strings found in drivers, include only DT nodes which are supported by any driver present in U-Boot.
Secondly, generate struct udevice_id entries only for nodes present in DT, which will allow to avoid including additional data.
These are the first steps for further improvements as proposed in the specific patches in this series.
This work is based on the work of Simon Glass present in [1] which adds support to dtoc for parsing compatible strings.
[1] https://gitlab.denx.de/u-boot/custodians/u-boot-dm/-/tree/dtoc-working
Walter Lozano (4): dtoc: add POC for dtb shrink dtoc: add initial support for deleting DTB nodes dtoc: add support for generate stuct udevice_id mmc: fsl_esdhc_imx: make use of dtoc to generate struct udevice_id
drivers/mmc/fsl_esdhc_imx.c | 58 ++++++++++++++------ tools/dtoc/dtb_platdata.py | 102 ++++++++++++++++++++++++++++++++++-- tools/dtoc/fdt.py | 3 ++ 3 files changed, 143 insertions(+), 20 deletions(-)