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- .. SPDX-License-Identifier: GPL-2.0+
- mx6ul_14x14_evk
- ===============
- How to use U-Boot on Freescale MX6UL 14x14 EVK
- -----------------------------------------------
- - Build U-Boot for MX6UL 14x14 EVK:
- .. code-block:: bash
- $ 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:
- .. code-block:: bash
- sudo dd if=SPL of=/dev/mmcblk0 bs=1k seek=1 conv=notrunc; sync
- - Flash the u-boot.img image into the micro SD card:
- .. code-block:: bash
- sudo dd if=u-boot.img of=/dev/mmcblk0 bs=1k seek=69 conv=notrunc; 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:
- .. code-block:: bash
- $ 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:
- .. code-block:: bash
- $ 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:
- .. code-block:: bash
- $ sudo ./imx_usb SPL
- $ sudo ./imx_usb u-boot-dtb.img
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