We are trying to bring up t1023 freescale board (using SDK 1.9). With default
image, wireless chipset (AR9558) was not detected. Hence we built the uImage,
rootfs in yocto environment and booted the board. With this uImage, we built
ath10k driver as a kernel module. When we insert kernel module, there was an
error firmware.bin is not present. We could not find this firmware.bin in the
linux package. When we tried to download firmware.bin we got some information
that only from 3.13 kernel, the driver shall act as an AP whereas the previous
version shall act only as a Station.
Hence we thought to upgrade the kernel to 3.18 kernel. We cross compiled the
linux kernel 3.18 (using make menuconfig) and generated the uImage. But with
this uImage and dtb file for tool chain, we are not able to successfully boot
the board. Please find attachment of the screenshot. The image hangs after
loading the device tree. We could not understand what could have went wrong.
It will be helpful if we get the following information.
1. Can we use 3.12 kernel as AP? If so can you provide us the firmware.bin
2. Do we miss any steps to bring up the board when compiling 3.18 kernel.
3. In case we want to upgrade the kernel, can you provide the steps to
compile the kernel in yocto environment