Re: [PATCH] dw_mmc: Add Synopsys DesignWare mmc host driver.

Chris Ball
2010-12-11T19:23:20Z

Hi Will,

On Thu, Dec 09, 2010 at 05:24:26PM +0000, Will Newton wrote:
> This adds the mmc host driver for the Synopsys DesignWare mmc
> host controller, found in a number of embedded SoC designs.
>
> Signed-off-by: Will Newton <will.newton@imgtec.com>
> Reviewed-by: Matt Fleming <matt@console-pimps.org>

Running a test build on ARM fails:

drivers/mmc/host/dw_mmc.c: In function ‘dw_mci_push_data64’:
drivers/mmc/host/dw_mmc.c:985: error: implicit declaration of function ‘__raw_writeq’
drivers/mmc/host/dw_mmc.c: In function ‘dw_mci_pull_data64’:
drivers/mmc/host/dw_mmc.c:998: error: implicit declaration of function ‘__raw_readq’

because arch/arm doesn't implement raw versions of these 64-bit accesses.
I'm surprised that this driver hasn't been compiled on ARM before! What
kind of arch are you testing on? Do you have any ARM hardware (lpc313x?)
to verify the driver on?

Thanks,

--
Chris Ball <cjb@laptop.org> <http://printf.net/>
One Laptop Per Child

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