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| author | Fabio Estevam <festevam@gmail.com> | 2018-09-04 10:23:13 -0300 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2018-09-14 15:04:24 +0200 |
| commit | c97c9e0804062c86e253b404e1da10edc3e9a0f1 (patch) | |
| tree | be0d7bed437bcff1bbfe76aa128e1bf79c20979c /board/technexion | |
| parent | 000829fdb8999a4085e45799e7dee73f27c7d3f0 (diff) | |
| download | u-boot-c97c9e0804062c86e253b404e1da10edc3e9a0f1.tar.gz | |
pico-imx6ul: Update the README file
Update the README file to take into accound the switch to SPL.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Fabio Berton <fabio.berton@ossystems.com.br>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Diffstat (limited to 'board/technexion')
| -rw-r--r-- | board/technexion/pico-imx6ul/README | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/board/technexion/pico-imx6ul/README b/board/technexion/pico-imx6ul/README index 2f66095097..a5415714ee 100644 --- a/board/technexion/pico-imx6ul/README +++ b/board/technexion/pico-imx6ul/README @@ -13,7 +13,13 @@ $ make mrproper $ make pico-imx6ul_defconfig $ make -This will generate the U-Boot binary called u-boot.imx. +This generates the SPL and u-boot.img binaries. + +1. Loading U-Boot via USB Serial Download Protocol + +Note: This method is convenient for development purposes. +If the eMMC has already a U-Boot flashed with DFU support then +the user can go to step 2 below in order to update U-Boot. Put pico board in USB download mode (refer to the document http://www.wandboard.org/images/hobbit/hobbitboard-imx6ul-reva1.pdf page 15) @@ -24,11 +30,15 @@ Connect a USB cable between the OTG pico port and the host PC Open a terminal program such as minicom -Copy u-boot.imx to the imx_usb_loader folder. +Copy SPL and u-boot.img to the imx_usb_loader folder. + +Load the SPL binary via USB: -Load u-boot.imx via USB: +$ sudo ./imx_usb SPL -$ sudo ./imx_usb u-boot.imx +Load the u-boot.img binary via USB: + +$ sudo ./imx_usb u-boot.img Then U-Boot should start and its messages will appear in the console program. @@ -37,12 +47,16 @@ Use the default environment variables: => env default -f -a => saveenv +2. Flashing U-Boot into the eMMC + Run the DFU command: => dfu 0 mmc 0 -Transfer u-boot.imx that will be flashed into the eMMC: +Flash SPL and u-boot.img into the eMMC running the following commands on a PC: + +$ sudo dfu-util -D SPL -a spl -$ sudo dfu-util -D u-boot.imx -a boot +$ sudo dfu-util -D u-boot.img -a u-boot Then on the U-Boot prompt the following message should be seen after a successful upgrade: |