Alexey,
I tested the patch on PowerPC. Seems to work fine, but you have to make sure
to set the proper order of arguments for when the EHCI registers are big
endian: __raw_writel(cpu_to_be32(b), a)
To test this patch I had to verify that __raw_ functions are supported for
PowerPC, so I created
Hi Marek, Vladimir,
On Sun, 2017-10-29 at 11:00 +0100, Marek Vasut wrote:
> On 10/27/2017 02:42 PM, Vladimir Boroda wrote:
> >
> > Alexey/Marek,
> >
> > It appears that the "drivers/usb/ehci: Use platform-specific accessors"
> > patch that was submitted in June (and currently adopted in U-Boot
>
This patch should have been rejected. It no longer breaks the build, but it
break the functionality on big-endian systems. The readl() and writel() macros
already do the endian conversion assuming the port is in little-endian format.
So after this patch the EHCI registers are now read incorre
From: Alexey Brodkin
Current implementation doesn't allow utilization of platform-specific
reads and writes.
But some arches or platforms may want to use their accessors that do
some extra work like adding barriers for data serialization etc.
Interesting enough OHCI accessors already do that so
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