[OE-core] is there OE support for building multi-image/component FIT image files?

[Robert P. J. Day]

On Tue, 28 Mar 2017, Rick Altherr wrote:

> kernel-fitimage.bbclass loops through all the DTBs listed in
> KERNEL_DEVICETREE and adds a FIT section for each one.  It looks
> like only the first one is put into a config section though.

  that's not what i'm seeing based on a test with YP-provided
beaglebone reference board. that machine config file includes the
line for two dtb files:

  KERNEL_DEVICETREE="am335x-bone.dtb am335x-boneblack.dtb"

and the resulting .its file generated contains two configurations --
using the same kernel, and for each dtb file. i just need to read the
code more carefully to verify that it appears to loop through all the
dtb files.


images {
        kernel at 1 {
                description = "Linux kernel";
                data = /incbin/("linux.bin");
                type = "kernel";
                arch = "arm";
                os = "linux";
                compression = "none";
                load = <0x80008000>;
                entry = <0x80008000>;
                hash at 1 {
                        algo = "sha1";
                };
        };
        fdt at am335x-bone.dtb {
                description = "Flattened Device Tree blob";
                data = /incbin/("arch/arm/boot/dts/am335x-bone.dtb");
                type = "flat_dt";
                arch = "arm";
                compression = "none";
                hash at 1 {
                        algo = "sha1";
                };
        };
        fdt at am335x-boneblack.dtb {
                description = "Flattened Device Tree blob";
                data = /incbin/("arch/arm/boot/dts/am335x-boneblack.dtb");
                type = "flat_dt";
                arch = "arm";
                compression = "none";
                hash at 1 {
                        algo = "sha1";
                };
        };
	};

configurations {
        default = "conf at am335x-bone.dtb";
        conf at am335x-bone.dtb {
			description = "1 Linux kernel, FDT blob";
			kernel = "kernel at 1";
			fdt = "fdt at am335x-bone.dtb";


                hash at 1 {
                        algo = "sha1";
                };
        };

        conf at am335x-boneblack.dtb {
			description = "0 Linux kernel, FDT blob";
			kernel = "kernel at 1";
			fdt = "fdt at am335x-boneblack.dtb";


                hash at 1 {
                        algo = "sha1";
                };
	};
};


rday

-- 

========================================================================
Robert P. J. Day                                 Ottawa, Ontario, CANADA
                        http://crashcourse.ca

Twitter:                                       http://twitter.com/rpjday
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