Revision as of 17:57, 3 May 2023

Warning: This page is designed to be used with a 'release' URL parameter.

This page is using the default release RELEASE_BUSTER_V2.0_DART-MX8M.
To view this page for a specific Variscite SoM and software release, please follow these steps:

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Build U-Boot from source code

Toolchain installation for out of builds

To install the toolchain, follow the Debian Toolchain installation guide.

Build U-Boot out of tree

Obtain sources:

$ git clone https://github.com/varigit/uboot-imx.git -b imx_v2018.03_4.14.78_1.0.0_ga_var01
$ cd uboot-imx

Configure compilation environment:

$ export ARCH=arm64
$ export CROSS_COMPILE=~/var_mx8m_dart_debian/toolchain/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/aarch64-linux-gnu-

Cleanup everything:

$ make mrproper

Select configuration:

$ make imx8m_var_dart_defconfig

Build U-Boot:

$ make -j$(nproc)

Build boot image

The final boot image contains multiple firmware files, as explained by NXP in IMX_LINUX_USERS_GUIDE.pdf (Search for "How to build imx-boot image by using imx-mkimage").

The following procedure builds the final image:

Create imx-boot-tools directory:

$ mkdir imx-boot-tools
$ cd imx-boot-tools

Download DDR and HDMI/DP firmware:

$ git clone https://github.com/varigit/debian-var.git -b debian_buster_var01
$ cp debian-var/variscite/imx8m-var-dart/imx-boot-tools/*ddr4* .
$ cp debian-var/variscite/imx8m-var-dart/imx-boot-tools/signed_* .

Download ATF:

$ wget https://github.com/varigit/debian-var/raw/debian_buster_var01/variscite/imx8m-var-dart/imx-boot-tools/bl31-mx8m.bin -O bl31.bin

Copy U-Boot binaries:

$ cp ../tools/mkimage mkimage_uboot
$ cp ../u-boot.bin .
$ cp ../u-boot-nodtb.bin ../spl/u-boot-spl.bin ../arch/arm/dts/ .

Download imx-mkimage:

$ git clone /imx-mkimage -b   
$ cp imx-mkimage/iMX8M/*.c imx-mkimage/iMX8M/*.sh imx-mkimage/iMX8M/soc.mak .

Build boot image:

$ make -f soc.mak clean
$ make -f soc.mak SOC= dtbs= MKIMG=./mkimage_imx8 PAD_IMAGE=./pad_image.sh CC=gcc OUTIMG=imx-boot-sd.bin flash_evk

Install the built U-Boot on an SD card

$ sudo dd if=imx-boot-sd.bin of=/dev/sdX bs=1K seek= conv=fsync
(Replace /dev/sdX with the correct device)

If you want to use our recovery SD card to flash the built U-Boot to NAND flash/eMMC, then copy it to the appropriate location in the SD card:

$ sudo cp SPL /media/rootfs/opt/images/Debian
$ sudo cp u-boot.img /media/rootfs/opt/images/Debian

And eject the SD card gracefully from host machine.

Note: If you manually upgrade an existing U-Boot, and you have an old environment saved, it is a good idea to reset your environment to the new default (see Environment handling commands)

Update your U-Boot out of Debian tree

$ cd uboot-imx
$ git pull

@@ Line 60: / Line 60: @@
 | imx8=
 Obtain SC firmware:<br>
-{{#ifexpr: {{#var:DEBIAN_VERSION}} < 11 |Either build|Build}} SCFW by following the {{Varlink|Yocto_Build_SCFW|{{#var:RELEASE_LINK}}|Build SCFW from source code}} page and copy the SCFW image to the imx-boot-tools directory{{#ifexpr: {{#var:DEBIAN_VERSION}} < 11 |, or download the pre-built binary by running:<br>
+{{#ifexpr: {{#var:DEBIAN_VERSION}} < 11 |Either build|Build}} SCFW by following the {{Varlink|Yocto_Build_SCFW|{{#var:RELEASE_LINK}}|Build SCFW from source code}} page and copy the SCFW image to the imx-boot-tools directory{{#ifexpr: {{#var:DEBIAN_VERSION}} < 11 |, or download the pre-built binary by running:
- <!-- For Buster (Debian 10) obtain from the debian-var repo -->
+<!-- For Buster (Debian 10) obtain from the debian-var repo -->
 {{#switch:{{#var:SOC}}
 | mx8qxp=
+<br>
 For i.MXQXP SOC revB:<br>
   $ wget {{#var:DEBIAN_GIT_WGET}}/raw/{{#var:DEBIAN_BRANCH}}/variscite/{{#var:MACHINE_NAME}}/imx-boot-tools-b0/{{#var:SC_FIRMWARE}} -O scfw_tcm.bin
@@ Line 69: / Line 70: @@
   $ wget {{#var:DEBIAN_GIT_WGET}}/raw/{{#var:DEBIAN_BRANCH}}/variscite/{{#var:MACHINE_NAME}}/imx-boot-tools/{{#var:SC_FIRMWARE}} -O scfw_tcm.bin
 | mx8qm=
+&nbsp;
   $ wget {{#var:DEBIAN_GIT_WGET}}/raw/{{#var:DEBIAN_BRANCH}}/variscite/{{#var:MACHINE_NAME}}/imx-boot-tools/scfw_tcm.bin
 }} <!-- end of switch SOC -->
@@ Line 78: / Line 80: @@
 {{#switch:{{#var:SOC}}
 | mx8qxp=
-&nbsp;
+<br>
 For i.MXQXP SOC revB:<br>
   $ wget {{#var:DEBIAN_GIT_WGET}}/raw/{{#var:DEBIAN_BRANCH}}/variscite/{{#var:MACHINE_NAME}}/imx-boot-tools-b0/{{#var:SECO_FIRMWARE_IMG_B0}}
@@ Line 84: / Line 86: @@
   $ wget {{#var:DEBIAN_GIT_WGET}}/raw/{{#var:DEBIAN_BRANCH}}/variscite/{{#var:MACHINE_NAME}}/imx-boot-tools/{{#var:SECO_FIRMWARE_IMG}}
 | mx8qm=
-<br>
+&nbsp;
   $ wget {{#var:DEBIAN_GIT_WGET}}/raw/{{#var:DEBIAN_BRANCH}}/variscite/{{#var:MACHINE_NAME}}/imx-boot-tools/{{#var:SECO_FIRMWARE_IMG}}
 }}
@@ Line 95: / Line 97: @@
 }}
 | imx9=
-&nbsp;
+<br>
 Download Sentinel firmware:
   $ wget {{#var:IMX_SENTINEL_URL}}
@@ Line 107: / Line 109: @@
   $ cp {{#var:NXP_FIRMWARE}}/firmware/ddr/synopsys/* .
 | #default= <!-- Download the DDR/HDMI firmware from the debian-var repository (Debian Buster and above) -->
-&nbsp;
+<br>
 Download DDR {{#switch: {{#var:SOC}}|mx8mq|mx8m= and HDMI/DP|#default=}} firmware:
   $ git clone {{#var:DEBIAN_GIT}} -b {{#var:DEBIAN_BRANCH}}

Debian Build U-Boot: Difference between revisions