@@ -9,6 +9,9 @@ $ 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
@@ -30,3 +33,50 @@ switch label numbers reference).
- 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
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> --- Changes since v1: - Added more details on how to calculate address for UUU script. - Clarified that UUU and imx_usb_loader are 2 different methods. board/freescale/mx6ul_14x14_evk/README | 50 ++++++++++++++++++++++++++ 1 file changed, 50 insertions(+)