From: Hiago De Franco hiago.franco@toradex.com

Extend the padding process of u-boot-nand.imx target by adding 10k bytes of zeros to the end of the binary using the 'dd' command.

The existing padding method did not generate a functional binary, as discussed in more detail in this thread [1]. Instead, we adopt the end-padding calculation method documented in 'board/doc/colibri_imx7.rst' as a reference, which is relevant for iMX7 with NAND storage.

Adding 10k bytes of zeros provides an approximate value that makes the proper padding for these NAND devices.

[1] https://lore.kernel.org/all/CAC4tdFUqffQzRQFv5AGe_xtbFy1agr2SEpn_FzEdexhwjdr...

Signed-off-by: Hiago De Franco hiago.franco@toradex.com --- arch/arm/mach-imx/Makefile | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index aebfa6517b..6904cf3880 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -142,7 +142,9 @@ u-boot.imx: u-boot.bin u-boot.cfgout $(PLUGIN).bin FORCE $(call if_changed,mkimage)

quiet_cmd_u-boot-nand_imx = GEN $@ -cmd_u-boot-nand_imx = (dd bs=1024 count=1 if=/dev/zero 2>/dev/null) | cat - $< > $@ +cmd_u-boot-nand_imx = (dd bs=1024 count=1 if=/dev/zero 2>/dev/null) | cat - $< > $@.zero-padded ; \ + (dd bs=10k count=1 if=/dev/zero 2>/dev/null) | cat $@.zero-padded - > $@ ; \ + rm -f $@.zero-padded

u-boot-nand.imx: u-boot.imx FORCE $(call if_changed,u-boot-nand_imx)