linux-kernel - Re: [PATCH 8/8] spi_mpc8xxx: Add support for QE DMA mode and CPM1/CPM2 chips

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Date:	Thu, 5 Nov 2009 07:47:56 -0600
From:	Kumar Gala <galak@...nel.crashing.org>
To:	Anton Vorontsov <avorontsov@...mvista.com>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	spi-devel-general@...ts.sourceforge.net, linuxppc-dev@...abs.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 8/8] spi_mpc8xxx: Add support for QE DMA mode and CPM1/CPM2 chips


On Oct 12, 2009, at 11:49 AM, Anton Vorontsov wrote:

> This patch adds QE buffer descriptors mode support for the
> spi_mpc8xxx driver, and as a side effect we now support CPM1
> and CPM2 SPI controllers.
>
> That means that today we support almost all MPC SPI controllers:
>
> - MPC834x-style controllers (support PIO mode only);
> - CPM1 and CPM2 controllers (support DMA mode only);
> - QE SPI controllers in CPU mode (PIO mode with shift quirks);
> - QE SPI controllers in buffer descriptors (DMA) mode;
>
> The only controller we don't currently support is a newer eSPI
> (with a dedicated chip selects and a bit different registers map).
>
> Signed-off-by: Anton Vorontsov <avorontsov@...mvista.com>
> Acked-by: David Brownell <dbrownell@...rs.sourceforge.net>
> ---
> drivers/spi/Kconfig       |    3 -
> drivers/spi/spi_mpc8xxx.c |  540 ++++++++++++++++++++++++++++++++++++ 
> +++++----
> 2 files changed, 500 insertions(+), 43 deletions(-)

applied to next

- k
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