On Wed, 2021-08-18 at 09:19 -0300, Fabio Estevam wrote:
After the conversion to binman in commit 8996e6b7c6a1 ("imx8mm_evk: switch to use binman to pack images"), it is necessary to flash both flash.bin and u-boot.itb to get a bootable system. Prior to this commit, only flash.bin was needed.
Such new requirement breaks existing distro mechanisms to generate the final binary because the extra u-boot.itb is now required.
Generate a final flash.bin that can be used again as a single bootable binary to keep the original behavior.
After this change the SPL binary is called spl.bin, which is a more descriptive name for its purpose, and can still be used standalone (for example, for secure boot purposes).
Signed-off-by: Fabio Estevam festevam@denx.de
arch/arm/dts/imx8mm-evk-u-boot.dtsi | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/arch/arm/dts/imx8mm-evk-u-boot.dtsi b/arch/arm/dts/imx8mm-evk-u-boot.dtsi index f200afac9f..453fe1d259 100644 --- a/arch/arm/dts/imx8mm-evk-u-boot.dtsi +++ b/arch/arm/dts/imx8mm-evk-u-boot.dtsi @@ -150,7 +150,7 @@ }; - flash { + spl { mkimage { args = "-n spl/u-boot-spl.cfgout -T imx8mimage -e 0x7e1000";
A second issue I found (besides imximage.cfg needing adjustments as pointed out by Frieder) is that for me it only works if I also explicitly set the filename here to spl.bin e.g. as follows:
filename = "spl.bin";
Anyway, I am just about to send a patch set updating our Verdin iMX8M Mini to also make use of all this. Stay tuned...
@@ -217,4 +217,19 @@ }; }; };
+ imx-boot { + filename = "flash.bin"; + pad-byte = <0x00>;
+ spl: blob-ext@1 { + offset = <0x0>; + filename = "spl.bin"; + };
+ uboot: blob-ext@2 { + offset = <0x57c00>; + filename = "u-boot.itb"; + }; + }; };