On Mon, Mar 2, 2015 at 10:20 AM, Fabio Estevam fabio.estevam@freescale.com wrote:
Provide instructions on how to upgrade U-boot in the eMMC.
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com
board/warp/README | 56 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 56 insertions(+) create mode 100644 board/warp/README
diff --git a/board/warp/README b/board/warp/README new file mode 100644 index 0000000..da77542 --- /dev/null +++ b/board/warp/README @@ -0,0 +1,56 @@ +How to Update U-boot on Warp board +----------------------------------
+Required software on the host PC:
+- imx_loader: https://github.com/warpboard/imx_usb_loader
I see no reason to link WaRP's fork. The Boundary Devices upstream code offers a more up to date bases and I think we should give them the credit for the tool. Mind to change it?
+- dfu-util: http://dfu-util.sourceforge.net/releases/
+Build U-boot for Warp:
+$ make mrproper +$ make warp_config +$ make
+This will generate the U-boot binary called u-boot.imx.
+Put warp board in USB download mode
+Connect a USB to serial adapter between the host PC and warp
+Connect a USB cable between the OTG warp port and the host PC
+Open a terminal program such as minicom
+Copy u-boot.imx to the imx_usb folder.
+Load u-boot.imx via USB:
+$ sudo ./imx_usb
$ sudo ./imx_usb <path to u-boot.imx>
+Then U-boot should start and its messages will appear in the console program.
+Use the default environment variables:
+=> env default -f -a +=> save
I think this is not needed as the environment will be rewritten when the U-Boot is overridden.