Porting U-Boot to a QCA9531 board?

[Heinrich Schuchardt]

On 18.11.20 11:34, Wambui Karuga wrote:
> Hi
>
> I'm trying to port the latest version of U-Boot (master branch) to a QCA9531
> board, based on the QCA ap147 reference design which itself is OS image
> compatible with the ap143 target of mainline U-Boot. The board comes with the
> closed-source BREED bootloader from the manufacturer but it also fully works
> with the open source U-Boot-mod by Pepe2k.
>
> The board comes with a Chaos Calmer ar71xx mach based OpenWRT image which we
> have upgraded to a fully working ath79 dts based image running the 5.4 Linux
> kernel.
>
> For U-Boot, initially we have modified the existing ap143 target and found the
> following results which are consistent across U-Boot releases 2016-07, 2019-10,
> 2020-04 and latest master:
> - Ethernet support is not working within U-Boot. Detection of the ethernet
>   device fails with:  "Net: No ethernet found". The troubleshooting tip found
>   here https://www.denx.de/wiki/view/DULG/NetNoEthernetFound doesn't resolve the
>   problem

Your dts has this line: #include "qca953x.dtsi"

arch/mips/dts/qca953x.dtsi has

                        gmac1: eth1 at 0x1a000000 {
                                compatible = "qca,ag953x-mac";
                                reg = <0x1a000000 0x200>;
                                phy = <&phy0>;
                                phy-mode = "rgmii";


The driver with the same compatible string is drivers/net/ag7xxx.c.

The Makefile has:

drivers/net/Makefile:7:obj-$(CONFIG_AG7XXX) += ag7xxx.o

The driver will not be compiled because your config does not select
CONFIG_AG7XXX.

> - With OpenWrt 18.06 (Kernel 4.4 - ar71xx mach target) and 19.07 (kernel 4.14 -
>   ath79 dts target) the boot process doesn't complete and stalls at [link]. With
>   OpenWrt Master (5.4) the boot process completes but the system displays the
>   following issues: -- Within OpenWrt the watchdog timer (usually on GPIO 2)
>   does not respond to writes on sysfs and therefore the device reboots every 4
>   minutes -- The second USB hub on the board is not detected by OpenWrt during
>   boot and therefore some devices do not come up on the operating system such as
>   the modem.

These seem to be questions about Linux configuration, not U-Boot.

Cc: Daniel Schwierzeck <daniel.schwierzeck at gmail.com> (maintainer:MIPS)

Best regards

Heinrich

>
> My working config file is here[1], my device tree is here[2], the board file
> here[3]  and my defconfig can be found here[4].
>
> Am I running into an obvious oversight? What are the next steps I need to take
> to get my port working?
>
> Thanks,
> wambui karuga
> [1] https://github.com/wambu-i/u-boot/blob/getbox/include/configs/get-box.h
> [2] https://github.com/wambu-i/u-boot/blob/getbox/arch/mips/dts/jangala,get-box.dts
> [3] https://github.com/wambu-i/u-boot/blob/getbox/board/jangala/get-box/get-box.c
> [4] https://github.com/wambu-i/u-boot/blob/getbox/configs/get-box_defconfig
>