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(+)

diff --git a/board/freescale/mx6ul_14x14_evk/README b/board/freescale/mx6ul_14x14_evk/README index 1edccf688c..e101abe48c 100644 --- a/board/freescale/mx6ul_14x14_evk/README +++ b/board/freescale/mx6ul_14x14_evk/README @@ -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