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Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio

From Robert Jarzmik <robert.jarzmik@free.fr>
Newsgroups linux.kernel
Subject Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio
Date 2016-02-20 22:00 +0100
Message-ID <r4mNc-2Zt-7@gated-at.bofh.it> (permalink)
References <qVXsB-5Xs-5@gated-at.bofh.it> <r2LZn-7bM-5@gated-at.bofh.it> <r2NRv-8nd-1@gated-at.bofh.it> <r2Okz-8F-29@gated-at.bofh.it>
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Arnd Bergmann <arnd@arndb.de> writes:

> Coming back to the specific pxa25x_udc case: using __raw_* accessors
> in the driver would possibly end up breaking the PXA25x machines in
> the (very unlikely) case that someone wants to make it work with
> big-endian kernels, assuming it does not have the same hardware
> byteswap logic as ixp4xx.

As far as I know, pxa25x machine implies the kernel is little endian. From an
hardware perspective, pxa25x doesn't support big endian (old ARM platform).

So I don't think considering BE for pxa25x is ... necessary.

Cheers.

-- 
Robert

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Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio khalasa@piap.pl (Krzysztof Hałasa) - 2016-02-15 08:40 +0100
  Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio Arnd Bergmann <arnd@arndb.de> - 2016-02-15 10:40 +0100
    Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio khalasa@piap.pl (Krzysztof Hałasa) - 2016-02-15 15:00 +0100
      Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio Arnd Bergmann <arnd@arndb.de> - 2016-02-15 17:20 +0100
        Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio khalasa@piap.pl (Krzysztof Hałasa) - 2016-02-16 10:30 +0100
          Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio Arnd Bergmann <arnd@arndb.de> - 2016-02-16 12:30 +0100
            Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio khalasa@piap.pl (Krzysztof Hałasa) - 2016-02-16 14:30 +0100
              Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio Arnd Bergmann <arnd@arndb.de> - 2016-02-16 15:00 +0100
                Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio khalasa@piap.pl (Krzysztof Hałasa) - 2016-02-17 09:40 +0100
                Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio Arnd Bergmann <arnd@arndb.de> - 2016-02-17 11:40 +0100
                Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio khalasa@piap.pl (Krzysztof Hałasa) - 2016-02-17 17:20 +0100
                Re: [PATCH 3/7] usb: gadget: pxa25x_udc: use readl/writel for mmio Robert Jarzmik <robert.jarzmik@free.fr> - 2016-02-20 22:00 +0100

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