[PATCH] pci: pcie-brcmstb: bring over some robustness improvements from Linux

[Tom Rini]

On Mon, Aug 14, 2023 at 04:34:13PM -0600, Sam Edwards wrote:

> Since the initial U-Boot driver was ported here from Linux, the latter
> has had a few changes for robustness/stability. This patch brings over
> two of them:
> - Do not attempt to access the configuration space of a PCIe device if
>   the link has gone down, as that will result in an asynchronous SError
>   interrupt which will crash U-Boot.
> - Wait for the recommended 100ms after PERST# is deasserted.
> 
> I sent this patch while debugging a crash involving PCIe, but these
> are unrelated improvements. I do not believe that this patch fixes any
> real-world bug.
> 
> Signed-off-by: Sam Edwards <CFSworks at gmail.com>

Applied to u-boot/next, thanks!

-- 
Tom
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