diff options
| author | Hiago De Franco | 2023-10-03 18:26:54 -0300 |
|---|---|---|
| committer | Stefano Babic | 2023-10-16 08:46:01 +0200 |
| commit | 7dede4033bd0391d240914b3e54ec49a984d39b2 (patch) | |
| tree | 2de9ab780774e2fb0f76b3bbedefb2a7bcb8229e | |
| parent | 0c39564d02817a3a5b5b2519e73afc0969966206 (diff) | |
arm: mach-imx: Makefile: Extend u-boot-nand.imx padding
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_FzEdexhwjdryyw@mail.gmail.com/
Signed-off-by: Hiago De Franco <hiago.franco@toradex.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
| -rw-r--r-- | arch/arm/mach-imx/Makefile | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index aebfa6517bd..6904cf38802 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) |