[U-Boot] [PATCH 07/11] arm: pxa: colibri_pxa270: fix boot hang

[Marek Vasut]

On Sunday, August 16, 2015 at 04:16:32 AM, Marcel Ziswiler wrote:
> Fix boot hang caused by incompatible libgcc which has been observed
> when using later Linaro toolchains like
> gcc-linaro-arm-linux-gnueabihf-2012.09-20120921_linux or
> gcc-linaro-4.9-2014.11-x86_64_arm-linux-gnueabihf.

That's no surprise, since U-Boot links libgcc into itself. And since PXA2xx
is armv5-compatible, you'd need armv5 toolchain. The hang you're observing
is most likely happening in some aeabi_* function pulled in from libgcc,
which contains some armv7 instruction(s), which in turn upsets the xscale.

I would suggest that we drop this patch, but I would also suggest that we do
the same thing kernel does and just enable CONFIG_USE_PRIVATE_LIBGCC globally 
for everyone to break this constant nonsensical influx of toolchain-related 
problems. This nonsense has been dragging on for too long. Tom? Albert?

> Signed-off-by: Marcel Ziswiler <marcel at ziswiler.com>
> ---
> 
>  configs/colibri_pxa270_defconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/configs/colibri_pxa270_defconfig
> b/configs/colibri_pxa270_defconfig index 3963a50..2ef9ccb 100644
> --- a/configs/colibri_pxa270_defconfig
> +++ b/configs/colibri_pxa270_defconfig
> @@ -4,3 +4,4 @@ CONFIG_TARGET_COLIBRI_PXA270=y
>  # CONFIG_CMD_LOADB is not set
>  # CONFIG_CMD_LOADS is not set
>  # CONFIG_CMD_SETEXPR is not set
> +CONFIG_USE_PRIVATE_LIBGCC=y

Best regards,
Marek Vasut