From: ijc@debian•org (Ian Campbell)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH 1/3] bus: mvebu-mbus: do not set WIN_CTRL_SYNCBARRIER on non io-coherent platforms.
Date: Tue, 02 Jun 2015 08:14:11 +0100 [thread overview]
Message-ID: <1433229251.5748.290.camel@debian.org> (raw)
In-Reply-To: <1432802414-12355-2-git-send-email-thomas.petazzoni@free-electrons.com>
On Thu, 2015-05-28 at 10:40 +0200, Thomas Petazzoni wrote:
> From: Nicolas Schichan <nschichan@freebox•fr>
>
> Commit a0b5cd4ac2d6 ("bus: mvebu-mbus: use automatic I/O
> synchronization barriers") enabled the usage of automatic I/O
> synchronization barriers by enabling bit WIN_CTRL_SYNCBARRIER in the
> control registers of MBus windows, but on non io-coherent platforms
> (orion5x, kirkwood and dove) the WIN_CTRL_SYNCBARRIER bit in
> the window control register is either reserved (all windows except 6
> and 7) or enables read-only protection (windows 6 and 7).
>
> Signed-off-by: Nicolas Schichan <nschichan@freebox•fr>
> Reviewed-by: Thomas Petazzoni <thomas.petazzoni@free-electrons•com>
> Cc: <stable@vger•kernel.org> # v4.0+
> Fixes: a0b5cd4ac2d6 ("bus: mvebu-mbus: use automatic I/O synchronization barriers")
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons•com>
Tested-by: Ian Campbell <ijc@debian•org> (On QNAP TS-419P, it fixed SATA
reset issue)
next prev parent reply other threads:[~2015-06-02 7:14 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-28 8:40 [PATCH 0/3] bus: mvebu-mbus: important fixes and improvements Thomas Petazzoni
2015-05-28 8:40 ` [PATCH 1/3] bus: mvebu-mbus: do not set WIN_CTRL_SYNCBARRIER on non io-coherent platforms Thomas Petazzoni
2015-05-28 9:15 ` Gregory CLEMENT
2015-06-02 7:14 ` Ian Campbell [this message]
2015-05-28 8:40 ` [PATCH 2/3] Revert "bus: mvebu-mbus: make sure SDRAM CS for DMA don't overlap the MBus bridge window" Thomas Petazzoni
2015-05-28 8:49 ` Arnd Bergmann
2015-05-28 9:01 ` Thomas Petazzoni
2015-05-28 15:58 ` Greg KH
2015-05-28 9:17 ` Gregory CLEMENT
2015-05-28 15:59 ` Greg KH
2015-05-28 8:40 ` [PATCH 3/3] bus: mvebu-mbus: add mv_mbus_dram_info_nooverlap() Thomas Petazzoni
2015-05-28 8:49 ` Thomas Petazzoni
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