Latest revision as of 23:22, 7 May 2023

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

This page is using the default release RELEASE_BUSTER_V3.1_DART-MX8M.
To view this page for a specific Variscite SoM and software release, please follow these steps:

Visit variwiki.com
Select your SoM
Select the software release

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_v2019.04_4.19.35_1.1.0-var01
$ cd uboot-imx

Configure compilation environment:

$ export ARCH=arm64
$ export CROSS_COMPILE=~/debian_imx8mq-var-dart/toolchain/gcc-linaro-6.3.1-2017.05-x86_64_aarch64-linux-gnu/bin/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_var02
$ cp debian-var/variscite/imx8m-var-dart/imx-boot-tools/*ddr4* .
$ cp debian-var/variscite/imx8m-var-dart/imx-boot-tools/signed_* .

Download ATF:

$ git clone https://github.com/nxp-imx/imx-atf -b imx_4.19.35_1.1.0
$ cd imx-atf
$ git apply ../debian-var/variscite/imx8mq-var-dart/imx-boot-tools/imx-atf/*
$ unset LDFLAGS
$ make PLAT=imx8mq bl31
$ cp build/imx8mq/release/bl31.bin ..
$ cd ..

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/fsl-imx8mq-var-dart.dtb .

Download imx-mkimage:

$ git clone https://github.com/nxp-imx/imx-mkimage -b imx_4.19.35_1.1.0 
$ cp debian-var/variscite/imx8m-var-dart/imx-boot-tools/imx8m-var-dart/soc.mak .
$ cp imx-mkimage/iMX8M/*.c imx-mkimage/iMX8M/*.sh imx-mkimage/scripts/*.sh .

Build boot image:

$ make -f soc.mak clean
$ make -f soc.mak SOC=iMX8MQ dtbs=fsl-imx8mq-var-dart.dtb 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=33 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 imx-boot-sd.bin /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 21: / Line 21: @@
 Configure compilation environment:
   $ export ARCH={{#var:ARCH}}
-  $ export CROSS_COMPILE={{#var:BUILD_FOLDER}}/toolchain/{{#var:TOOLCHAIN}}/{{#var:CROSS_COMPILE}}
+  $ export CROSS_COMPILE={{#var:BUILD_FOLDER}}/toolchain/{{#var:TOOLCHAIN}}/bin/{{#var:CROSS_COMPILE}}
 Cleanup everything:
@@ Line 119: / Line 119: @@
 <!-- ATF firmware -->
 Download {{#ifexpr: {{#var:DEBIAN_VERSION}} >= 11 |and build}} ATF:<!--
-- For Bullseye (except for 8mp), the ATF is built by the build script
+- Buster commonly provides the ATF firmware pre-built in the variscite/<MACHINE>/imx-boot-tools(-b0), except for the mx8m
-- The ATF blob is pre-built for Buster and located at variscite/<MACHINE>/imx-boot-tools(-b0)
+- Bullseye commonly builds the ATF from scratch, except for the mx8mp and mx8mm lf-5.4.y
--->
+- In the future (>= Bullseye), the ATF firmware will most likely be built by the build script
-{{#ifexpr: {{#var:DEBIAN_VERSION}} < 11 or {{#rpos:{{#var:SOC}}|8mp}} > 0
+-->
+{{#ifexpr: {{#expr:{{#var:DEBIAN_VERSION}} < 11 and {{#switch:{{#var:SOC}}|mx8m=0|#default=1}}}}
+or {{#rpos:{{#var:SOC}}|8mp}} >= 0
+or {{#expr:{{#rpos:{{#var:SOC}}|8mm}} >= 0 and {{#rpos:{{#var:KERNEL_BRANCH}}|lf-5.4.y}} >= 0}}
 | <!-- For Buster (Debian 10) -->
 {{#switch:{{#var:SOC}}
@@ Line 133: / Line 136: @@
 | #default=
 &nbsp;
-  $ wget {{#var:DEBIAN_GIT_WGET}}/raw/{{#var:DEBIAN_BRANCH}}/variscite/{{#var:MACHINE_NAME}}/imx-boot-tools/bl31-{{#var:SOC}}.bin -O bl31.bin
+  {{#vardefine:DEBIAN_SRC_ATF_PATH|variscite/{{#var:MACHINE_NAME}}/imx-boot-tools/bl31-i{{#var:SOC}}.bin}}
+ {{#varexists:HAS_DEBIAN_CLONE|$ cp debian-var/{{#var:DEBIAN_SRC_ATF_PATH}} bl31.bin|$ wget {{#var:DEBIAN_GIT_WGET}}/raw/{{#var:DEBIAN_BRANCH}}/{{#var:DEBIAN_SRC_ATF_PATH}} -O bl31.bin}}
 }}
 | <!-- For Bullyese (Debian 11) and above -->
 &nbsp;
-  $ git clone {{#var:VARISCITE_ATF_GIT}} -b {{#var:VARISCITE_ATF_BRANCH}}
+  $ git clone {{#var:VARISCITE_ATF_GIT|{{#var:NXP_IMX_GIT}}/imx-atf}} -b {{#var:VARISCITE_ATF_BRANCH|{{#var:NXP_IMX_BRANCH}}}}
   $ cd imx-atf
+ {{#ifeq: {{#var:SOC}}|mx8m|
+ {{#ifeq: {{#var:KERNEL_BRANCH}}|imx_4.19.35_1.1.0_var01|$ git apply ../debian-var/variscite/imx8mq-var-dart/imx-boot-tools/imx-atf/*|}}|}}
   $ unset LDFLAGS
   $ make PLAT={{#var:IMX_ATF_PLAT}} bl31
@@ Line 189: / Line 195: @@
 Download imx-mkimage:
   $ git clone {{#var:NXP_IMX_GIT}}/imx-mkimage -b {{#var:NXP_IMX_BRANCH}}
-<!-- Patch imx-mkimage for mx8mn, mx8mm, mx8mp, mx8mq -->
+ <!-- Patch imx-mkimage for mx8mn, mx8mm, mx8mp, mx8mq -->
-  {{#ifexpr: {{#var:DEBIAN_VERSION}} >= 11
+  {{#ifexpr: {{#var:DEBIAN_VERSION}} >= 11 and not {{#expr: {{#rpos:{{#var:SOC}}|8mm}} >= 0 and {{#rpos:{{#var:KERNEL_BRANCH}}|lf-5.4.y}} >= 0}}
-  | <!-- For Bullseye (Debian 11) and above, use patches located at debian-var -->
+  | <!-- For Bullseye (Debian 11) and above, use patches located at debian-var (except for mx8mm and kernel lf-5.4.y) -->
   {{#varexists:HAS_DEBIAN_CLONE||$ git clone {{#var:DEBIAN_GIT}} -b {{#var:DEBIAN_BRANCH}}}}
   $ cd imx-mkimage
@@ Line 202: / Line 208: @@
   }}
   $ cd ..
-  | <!-- For Buster (Debian 10), overwrite soc.mak (only for mx8mn) -->
+  $ cp imx-mkimage/iMX8M/*.c imx-mkimage/iMX8M/*.sh imx-mkimage/iMX8M/soc.mak imx-mkimage/scripts/*.sh .
-  {{#switch:{{#var:SOC}}
+  {{#ifexpr: {{#var:YOCTO_VERSION}} >= 3.3 |$ cp dtb_check.sh ../scripts/|}}
- $ git clone {{#var:DEBIAN_GIT}} -b {{#var:DEBIAN_BRANCH}}
+ | <!-- For Buster (Debian 10), use the pre-patched version of soc.mak -->
-  |mx8mn= $ cp {{#var:DEBIAN_GIT}}/variscite/{{#var:MACHINE_NAME}}/imx-boot-tools/{{#var:MACHINE_NAME}}/soc.mak imx-mkimage/iMX8M/soc.mak
+  $ cp debian-var/variscite/{{#var:MACHINE_NAME}}/imx-boot-tools/{{#var:MACHINE_NAME}}/soc.mak .
- }}
+ $ cp imx-mkimage/iMX8M/*.c imx-mkimage/iMX8M/*.sh imx-mkimage/scripts/*.sh .
   }} <!-- end of DEBIAN_VERSION -->
- $ cp imx-mkimage/iMX8M/*.c imx-mkimage/iMX8M/*.sh imx-mkimage/iMX8M/soc.mak . <!-- dtb-check.sh -->
 }}

Debian Build U-Boot: Difference between revisions