iMX6 Rex Ultra U-Boot - Revision history

Voipac at 08:56, 24 April 2022

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Voipac at 18:59, 24 October 2021

2021-10-24T18:59:18Z

Voipac at 06:23, 26 April 2021

2021-04-26T06:23:51Z

Voipac at 20:55, 23 March 2021

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Voipac at 20:41, 23 March 2021

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Voipac at 13:14, 19 March 2021

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Voipac at 13:12, 19 March 2021

2021-03-19T13:12:59Z

Voipac: Created page with "Category:iMX6 Rex Development kit Category:iMX6 Rex Ultra Category:U-boot
TOC
U-Boot is a bootloader responsible for ha..."

2021-03-19T13:10:55Z

Created page with "Category:iMX6 Rex Development kit Category:iMX6 Rex Ultra Category:U-boot  <div style="float:right">__TOC__</div> U-Boot is a bootloader responsible for ha..."

New page

[[Category:iMX6 Rex Development kit]]
[[Category:iMX6 Rex Ultra]]
[[Category:U-boot]]

<div style="float:right">__TOC__</div>
U-Boot is a bootloader responsible for hardware initialization, loading and booting Linux kernel. It is also used for module flashing.

== Build ==

==== Set toolchain ====
Export [[iMX6 Rex Toolchain|toolchain variables]] for every related terminal session.

==== Initial steps ====
Create working directory
<syntaxhighlight lang="bash">
mkdir -pv ~/workdir/imx6/bootloader/
</syntaxhighlight>

== U-Boot v2015.04 ==

=== Download and extract source code ===
<syntaxhighlight lang="bash">
cd ~/workdir/imx6/bootloader/
git clone -b uboot-imx-v2015.04 --single-branch https://github.com/voipac/uboot-imx uboot-imx-v2015.04-rex
cd uboot-imx-v2015.04-rex
</syntaxhighlight>

=== Compile ===
Output file is called u-boot.imx. All the compiled images are intended for production usage.

==== Compile for SD and Linux/Yocto ====
<syntaxhighlight lang="bash">
cd ~/workdir/imx6/bootloader/uboot-imx-v2015.04-rex
make distclean
make mx6rexultra_config
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi-
cp u-boot.imx /srv/tftp/imx6/u-boot-imx6-rexultra.imx
cp u-boot.bin /srv/tftp/imx6/u-boot-imx6-rexultra.bin
</syntaxhighlight>

==== Compile for SATA and Linux/Yocto ====
<syntaxhighlight lang="bash">
cd ~/workdir/imx6/bootloader/uboot-imx-v2015.04-rex
make distclean
make mx6rexultrasata_config
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi-
cp u-boot.imx /srv/tftp/imx6/u-boot-imx6-rexultrasata.imx
cp u-boot.bin /srv/tftp/imx6/u-boot-imx6-rexultrasata.bin
</syntaxhighlight>

==== Compile for Android 7.x ====
<syntaxhighlight lang="bash">
cd ~/workdir/imx6/bootloader/uboot-imx-v2015.04-rex
make distclean
make mx6rexultraandroid_config
make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi-
cp u-boot.imx /srv/tftp/imx6/u-boot-imx6-rexultraandroid.imx
</syntaxhighlight>

=== How to Flash a new version ===
==== Flash image into SPI ====
<syntaxhighlight lang="bash">
setenv ipaddr 192.168.0.150
setenv serverip 192.168.0.1
tftp 0x177ff400 imx6/u-boot-imx6-rex*.bin
go 0x17800000

setenv ipaddr 192.168.0.150
setenv serverip 192.168.0.1
mw.b 0x10800000 0xFF 0x80000
tftp 0x10800000 imx6/u-boot-imx6-rex*.imx
if sf probe 2:2; then sf erase 0x0 0x80000; sf write 0x10800000 0x400 0x7fc00; fi
</syntaxhighlight>

==== Flash image into SATA ====
setenv ipaddr 192.168.0.150
setenv serverip 192.168.0.1
tftp 0x177ff400 imx6/u-boot-imx6-rex*.bin
go 0x17800000

setenv ipaddr 192.168.0.150
setenv serverip 192.168.0.1
mw.b 0x10800000 0xFF 0x80000
tftp 0x10800000 imx6/u-boot-imx6-rex*sata.imx
if sata init; then sata write 0x10800000 0x2 0x3ff; fi
</syntaxhighlight>

Flashing log:
<syntaxhighlight lang="bash">
U-Boot 2015.04-g3e8754e-dirty (May 08 2017 - 15:31:43)

CPU: Freescale i.MX6Q rev1.2 at 792 MHz
CPU: Temperature 42 C
Reset cause: WDOG
Board: MX6 Rex - pro
I2C: ready
DRAM: 2 GiB
MMC: FSL_SDHC: 0, FSL_SDHC: 1
SF: Detected SST25VF032B with page size 256 Bytes, erase size 4 KiB, total 4 MiB
In: serial
Out: serial
Err: serial
Fastboot: Normal
flash target is MMC:0
Bad partition index:5 for partition:system
Bad partition index:4 for partition:data
Net: FEC [PRIME]
Normal Boot
Hit any key to stop autoboot: 0
Rex U-Boot > setenv ipaddr 192.168.1.150
Rex U-Boot > setenv serverip 192.168.1.1
Rex U-Boot > mw.b 0x10800000 0xFF 0x80000
Rex U-Boot > tftp 0x10800000 imx6/u-boot-imx6-rexpro.imx
Using FEC device
TFTP from server 192.168.1.1; our IP address is 192.168.1.150
Filename 'imx6/u-boot-imx6-rexpro.imx'.
Load address: 0x10800000
Loading: #######################
2.9 MiB/s
done
Bytes transferred = 330752 (50c00 hex)
Rex U-Boot > sf probe 2:2;sf erase 0x0 0x80000;sf write 0x10800000 0x400 0x7fc00
SF: Detected SST25VF032B with page size 256 Bytes, erase size 4 KiB, total 4 MiB
SF: 524288 bytes @ 0x0 Erased: OK
SF: 523264 bytes @ 0x400 Written: OK
Rex U-Boot >
</syntaxhighlight>

== U-Boot v2014.10 ==

=== Download and Extract source code ===
<syntaxhighlight lang="bash">
cd ~/workdir/imx6/bootloader/
git clone -b uboot-imx-v2014.10 --single-branch https://github.com/voipac/uboot-imx uboot-imx-v2014.10-rex
cd uboot-imx-v2014.10-rex
</syntaxhighlight>

=== Compile ===
Output file is called u-boot.imx. The compiled image is intended for production usage.

==== Compile for Linux/Yocto ====
<syntaxhighlight lang="bash">
cd ~/workdir/imx6/bootloader/uboot-imx-v2014.10-rex
make distclean
make mx6rexultra_config
make
cp u-boot.imx /srv/tftp/imx6/u-boot-imx6-rexultra.imx
cp u-boot.bin /srv/tftp/imx6/u-boot-imx6-rexultra.bin
</syntaxhighlight>

=== How to Flash a new version ===
==== Flash Normal image into SD3 ====
<syntaxhighlight lang="bash">
setenv ipaddr 192.168.0.150
setenv serverip 192.168.0.1
tftp 0x177ff400 imx6/u-boot-imx6-rexultra.imx
go 0x17800000

setenv ipaddr 192.168.0.150
setenv serverip 192.168.0.1
mw.b 0x10800000 0xFF 0x80000
tftp 0x10800000 imx6/u-boot-imx6-rexultra.imx
sf probe 2:2;sf erase 0x0 0x80000;sf write 0x10800000 0x400 0x7fc00
</syntaxhighlight>

== Configure ==

==== Manually erase configuration ====
<syntaxhighlight lang="bash">
Rex U-Boot > sf probe 2:2
SF: Detected SST25VF032B with page size 256 Bytes, erase size 4 KiB, total 4 MiB
Rex U-Boot > sf erase 0x80000 0x2000
SF: 8192 bytes @ 0x80000 Erased: OK
Rex U-Boot > reset
</syntaxhighlight>

=== Android 4.4.2 bootloader + FEDEVEL kernels ===
To boot kernels available at [http://www.imx6rex.com/application/imx6-development-board/ iMX6Rex.com] the machine id variable must be modified:
<syntaxhighlight lang="bash">
Rex U-Boot > setenv machid f8c
Rex U-Boot > saveenv
</syntaxhighlight>

=== Running bootloader from SD card ===
iMX6 Rex Modules are configured to boot from SPI flash memory by default using eFuses configuration. This setting can be overwritten by running a special firmware that must be stored into SPI flash memory:
<syntaxhighlight lang="bash">
setenv ipaddr 192.168.0.150
setenv serverip 192.168.0.1
mw.b 0x10800000 0xFF 0x80000
tftp 0x10800000 imx6/iMX6DQ_SPI_to_uSDHC3.bin
sf probe 2:2
sf erase 0x0 0x80000
sf write 0x10800000 0x0 0x80000
</syntaxhighlight>

=== Manually boot from SATA ===
<syntaxhighlight lang="bash">
mw.l 0x020d8040 0x00001020; mw.l 0x020d8044 0x10000000; reset
</syntaxhighlight>

@@ Line 1: / Line 1: @@
-[[Category:iMX6 Rex Development kit]]
+[[Category:iMX6 Rex Development Kit]]
 [[Category:iMX6 Rex Ultra]]
 [[Category:U-Boot]]

@@ Line 173: / Line 173: @@
 SF: 8192 bytes @ 0x80000 Erased: OK
 Rex U-Boot > reset
 </syntaxhighlight>

@@ Line 80: / Line 80: @@
 CPU:   Temperature 42 C
 Reset cause: WDOG
-Board: MX6 Rex - pro
+Board: MX6 Rex - ultra
 I2C:   ready
 DRAM:  2 GiB
@@ Line 98: / Line 98: @@
 Rex U-Boot > setenv serverip 192.168.1.1
 Rex U-Boot > mw.b 0x10800000 0xFF 0x80000
-Rex U-Boot > tftp 0x10800000 imx6/u-boot-imx6-rexpro.imx
+Rex U-Boot > tftp 0x10800000 imx6/u-boot-imx6-rexultra.imx
 Using FEC device
 TFTP from server 192.168.1.1; our IP address is 192.168.1.150
-Filename 'imx6/u-boot-imx6-rexpro.imx'.
+Filename 'imx6/u-boot-imx6-rexultra.imx'.
 Load address: 0x10800000
 Loading: #######################

@@ Line 71: / Line 71: @@
 tftp 0x10800000 imx6/u-boot-imx6-rex*.imx
 if sf probe 2:2; then sf erase 0x0 0x80000; sf write 0x10800000 0x400 0x7fc00; fi
 </syntaxhighlight>
@@ Line 126: / Line 112: @@
 SF: 523264 bytes @ 0x400 Written: OK
 Rex U-Boot >
 </syntaxhighlight>

@@ Line 151: / Line 151: @@
 === How to Flash a new version ===
 <syntaxhighlight lang="bash">
 setenv ipaddr 192.168.0.150

@@ Line 74: / Line 74: @@
 ==== Flash image into SATA ====
 setenv ipaddr 192.168.0.150
 setenv serverip 192.168.0.1