mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 08:58:52 +09:00
![Breno Matheus Lima](/assets/img/avatar_default.png)
Add instructions on how to boot mx6ul_14x14_evk_defconfig target using the Serial Download Protocol. Add examples from uuu and imx_usb_loader tools. Signed-off-by: Breno Lima <breno.lima@nxp.com> Reviewed-by: Fabio Estevam <festevam@gmail.com>
83 lines
2.2 KiB
Plaintext
83 lines
2.2 KiB
Plaintext
How to use U-Boot on Freescale MX6UL 14x14 EVK
|
|
-----------------------------------------------
|
|
|
|
- Build U-Boot for MX6UL 14x14 EVK:
|
|
|
|
$ make mrproper
|
|
$ make mx6ul_14x14_evk_defconfig
|
|
$ make
|
|
|
|
This will generate the SPL image called SPL and the u-boot.img.
|
|
|
|
1. Booting via SDCard
|
|
---------------------
|
|
|
|
- Flash the SPL image into the micro SD card:
|
|
|
|
sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1; sync
|
|
|
|
- Flash the u-boot.img image into the micro SD card:
|
|
|
|
sudo dd if=u-boot.img of=/dev/mmcblk0 bs=1k seek=69; sync
|
|
|
|
- Jumper settings:
|
|
|
|
SW601: 0 0 1 0
|
|
Sw602: 1 0
|
|
|
|
where 0 means bottom position and 1 means top position (from the
|
|
switch label numbers reference).
|
|
|
|
- Connect the USB cable between the EVK and the PC for the console.
|
|
(The USB console connector is the one close the push buttons)
|
|
|
|
- Insert the micro SD card in the board, power it up and U-Boot messages should
|
|
come up.
|
|
|
|
2. Booting via Serial Download Protocol (SDP)
|
|
---------------------------------------------
|
|
|
|
The mx6ulevk board can boot from USB OTG port using the SDP, target will
|
|
enter in SDP mode in case an SD Card is not connect or boot switches are
|
|
set as below:
|
|
|
|
Sw602: 0 1
|
|
SW601: x x x x
|
|
|
|
The following tools can be used to boot via SDP, for both tools you must
|
|
connect an USB cable in USB OTG port.
|
|
|
|
- Method 1: Universal Update Utility (uuu)
|
|
|
|
The UUU binary can be downloaded in release tab from link below:
|
|
https://github.com/NXPmicro/mfgtools
|
|
|
|
The following script should be created to boot SPL + u-boot-dtb.img binaries:
|
|
|
|
$ cat uuu_script
|
|
uuu_version 1.1.4
|
|
|
|
SDP: boot -f SPL
|
|
SDPU: write -f u-boot-dtb.img -addr 0x877fffc0
|
|
SDPU: jump -addr 0x877fffc0
|
|
SDPU: done
|
|
|
|
Please note that the address above is calculated based on SYS_TEXT_BASE address:
|
|
|
|
0x877fffc0 = 0x87800000 (SYS_TEXT_BASE) - 0x40 (U-Boot proper Header size)
|
|
|
|
Power on the target and run the following command from U-Boot root directory:
|
|
|
|
$ sudo ./uuu uuu_script
|
|
|
|
- Method 2: imx usb loader tool (imx_usb):
|
|
|
|
The imx_usb_loader tool can be downloaded in link below:
|
|
https://github.com/boundarydevices/imx_usb_loader
|
|
|
|
Build the source code and run the following commands from U-Boot root
|
|
directory:
|
|
|
|
$ sudo ./imx_usb SPL
|
|
$ sudo ./imx_usb u-boot-dtb.img
|