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→... into NOR flash
<pre>
load=tftp ${loadaddr} ${uboot}
loadk=tftpboot ${loadaddr} ${serverip}:${bootfile}
loadfdt=tftpboot ${fdtaddr} ${serverip}:${fdtfile}
spi_loadfdt=sf read ${fdtaddr} 180000 80000
spi_nand=sf probe; run spi_loadk spi_loadfdt nandargs addcons addmisc; if run configid_fixupfdt; then bootm ${loadaddr} - ${fdtaddr}; fi
spi_update=sf probe; sf erase 0 +${filesize};sf write ${loadaddr} 400 ${filesize}
</pre>
===U-Boot===
The following example shows how to store a U-Boot image in NOR flash replacing the existing one (version <code>xuelk-2.0.0</code>). The variable <code>uboot</code> is edited to pick up a specific U-Boot image from the TFTP server (version <code>xuelk-2.0.2</code>).
<pre class="board-terminal">
U-Boot 2016.03-xuelk-2.0.0 (Sep 27 2017 - 16:52:39 +0200), Build: jenkins-XUELK_U-Boot-35
CPU: Freescale i.MX6UL rev1.1 528 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 34C
Reset cause: POR
Environment: SPI Flash
I2C: ready
DRAM: 512 MiB
Relocating to 9ff24000, new gd at 9ef13eb8, sp at 9ef13e90
WARNING: CB ConfigID is UNLOCKED, use configid cb_lock 0 to lock it
PMIC: PFUZE3000 DEV_ID=0x30 REV_ID=0x11
NAND: 2048 MiB
MMC: FSL_SDHC: 0
SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64 KiB, total 32 MiB
In: serial
Out: serial
Err: serial
MMC: no card present
SOM ConfigID#: 00000013
SOM UniqueID#: e6b3f362:262c61d4
CB ConfigID#: 00000030
CB UniqueID#: 00000000:00000000
Board: MX6UL SBC Lynx
Net: FEC0
Normal Boot
Hit any key to stop autoboot: 0
=> editenv uboot
edit: lynx/u-boot/xuelk-2.0.2_mx6ul_lynx_spi_u-boot.imx
=> run load
Using FEC0 device
TFTP from server 192.168.0.23; our IP address is 192.168.0.80
Filename 'lynx/u-boot/xuelk-2.0.2_mx6ul_lynx_spi_u-boot.imx'.
Load address: 0x80800000
Loading: #################################################################
##############################################
1.8 MiB/s
done
Bytes transferred = 565292 (8a02c hex)
=> run update
## Error: "update" not defined
=> run spi_update
SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64 KiB, total 32 MiB
SF: 589824 bytes @ 0x0 Erased: OK
device 0 offset 0x400, size 0x8a02c
SF: 565292 bytes @ 0x400 Written: OK
=> res
resetting ...
U-Boot 2016.03-xuelk-2.0.2 (Jan 12 2018 - 09:14:35 +0100), Build: jenkins-XUELK_U-Boot-38
CPU: Freescale i.MX6UL rev1.1 528 MHz (running at 396 MHz)
CPU: Industrial temperature grade (-40C to 105C) at 44C
Reset cause: POR
Environment: SPI Flash
I2C: ready
DRAM: 512 MiB
Relocating to 9ff24000, new gd at 9ef13eb8, sp at 9ef13e90
WARNING: CB ConfigID is UNLOCKED, use configid cb_lock 0 to lock it
PMIC: PFUZE3000 DEV_ID=0x30 REV_ID=0x11
NAND: 2048 MiB
MMC: FSL_SDHC: 0
SF: Detected S25FL256S_64K with page size 256 Bytes, erase size 64 KiB, total 32 MiB
In: serial
Out: serial
Err: serial
MMC: no card present
SOM ConfigID#: 00000013
SOM UniqueID#: e6b3f362:262c61d4
CB ConfigID#: 00000030
CB UniqueID#: 00000000:00000000
Board: MX6UL SBC Lynx
Net: FEC0
Normal Boot
Hit any key to stop autoboot: 0
=>
</pre>
===Linux kernel image and device tree===
* Update the <code>bootfile</code> and <code>fdtfile</code> environment variables to fit the filename as found inside the TFTP server.
* Program kernel and device tree on NOR flash with the following U-Boot command
