On Mon, Dec 19, 2016 at 10:23 PM, Kipper, Matthew
<[email protected]> wrote:
> Hi all,
>
> I'm working on a Zynq-7000 system that currently performs a "legacy" boot -
> the kernel, device tree and initramfs are loaded independently into RAM, and
> then they're all loaded by passing their addresses into 'bootm'. I'd like to
> update this to a "moderm" boot, where the system loads a single FIT image
> instead. This is my first exposure to FIT images - I thought I figured out
> how to do this, but my system is crashing so I'm beginning to doubt myself ;)
>
> This is the "legacy" load sequence (output omitted):
>
> setenv bootargs "console=ttyPS0,115200 root=/dev/ram rw
> ramdisk_size=0x1600000 earlyprintk init=/sbin/init"
> tftpboot 0x2000000 devicetree.dtb
> tftpboot 0x2080000 uImage
> tftpboot 0x4000000 initramfs.img
>
> Here's the output when I actually boot:
Questions apart, I've tried latest u-boot and linux-next on Microzed
board and able to boot if you need please see below.
its:
/dts-v1/;
/ {
description = "Verified RSA image with single Linux kernel and FDT blob";
#address-cells = <1>;
images {
kernel@1 {
description = "Zynq Linux kernel";
data = /incbin/("./vmlinux.bin.gz");
type = "kernel";
arch = "arm";
os = "linux";
compression = "gzip";
load = <0x8000>;
entry = <0x8000>;
hash@1 {
algo = "md5";
};
hash@2 {
algo = "sha1";
};
signature@1 {
algo = "sha1,rsa2048";
key-name-hint = "eng";
};
};
fdt@1 {
description = "Microzed Devicetree blob";
data = /incbin/("./zynq-microzed.dtb");
type = "flat_dt";
arch = "arm";
compression = "none";
hash@1 {
algo = "md5";
};
hash@2 {
algo = "sha1";
};
signature@1 {
algo = "sha1,rsa2048";
key-name-hint = "eng";
};
};
ramdisk@1 {
description = "Ramdisk Image";
data = /incbin/("./arm_ramdisk.image.gz");
type = "ramdisk";
arch = "arm";
os = "linux";
compression = "gzip";
hash@1 {
algo = "md5";
};
hash@2 {
algo = "sha1";
};
signature@1 {
algo = "sha1,rsa2048";
key-name-hint = "eng";
};
};
};
configurations {
default = "conf@1";
conf@1 {
description = "Boot Linux kernel with FDT blob and ramdisk";
kernel = "kernel@1";
fdt = "fdt@1";
ramdisk = "ramdisk@1";
};
};
};
Steps:
http://www.openedev.com/wiki/Microzed_Board#FIT
thanks!
--
Jagan Teki
Free Software Engineer | www.openedev.com
U-Boot, Linux | Upstream Maintainer
Hyderabad, India.
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