I totally agree with Eli. The devicetree should read something like "WP is not
present" (which will be the case on all micro SD readers). Having "WP is
inverted" there is just misleading.
On our boards, I use MIO0 as a "heartbeat" LED. Combined with a quirk in XPS
and/or Vivado that the pinmu
Hello Michal.
The Zybo board doesn't have any WP pin connected to the MicroSD card.
There is no physical possibility for the processor to know whether the
card is write-protected or not.
As I mentioned earlier, the practical problem can be worked around by
inverting the polarity of the WP bi
Hi,
On 03/06/2014 05:42 PM, Sören Brinkmann wrote:
> On Thu, 2014-03-06 at 02:31PM +0100, Mike Looijmans wrote:
>> On 03/04/2014 10:00 PM, Sören Brinkmann wrote:
>>> On Tue, 2014-03-04 at 10:06PM +0200, Eli Billauer wrote:
Hello Sören,
wp-inverted solves the practical problem indeed
On Thu, 2014-03-06 at 02:31PM +0100, Mike Looijmans wrote:
> On 03/04/2014 10:00 PM, Sören Brinkmann wrote:
> >On Tue, 2014-03-04 at 10:06PM +0200, Eli Billauer wrote:
> >>Hello Sören,
> >>
> >>wp-inverted solves the practical problem indeed, and fools the
> >>driver into thinking that the card has
On 03/04/2014 10:00 PM, Sören Brinkmann wrote:
On Tue, 2014-03-04 at 10:06PM +0200, Eli Billauer wrote:
Hello Sören,
wp-inverted solves the practical problem indeed, and fools the
driver into thinking that the card has an inverted write protection
sensor, and the logic zero that it finds in th
On Tue, 2014-03-04 at 10:06PM +0200, Eli Billauer wrote:
> Hello Sören,
>
> wp-inverted solves the practical problem indeed, and fools the
> driver into thinking that the card has an inverted write protection
> sensor, and the logic zero that it finds in the hardware register
> means that the card
Hello Sören,
wp-inverted solves the practical problem indeed, and fools the driver
into thinking that the card has an inverted write protection sensor, and
the logic zero that it finds in the hardware register means that the
card isn't write protected.
I'm insisting on this patch, because I
Hi Eli,
On Sun, 2014-03-02 at 01:20PM +0200, Eli Billauer wrote:
> The write protection signal is absent on a board based upon Xilinx' Zynq
> processor ("ZyBo"). This leads the kernel to think that the MicroSD card is
> write protected, and causes a kernel panic during boot, as root fails to
> mou
The write protection signal is absent on a board based upon Xilinx' Zynq
processor ("ZyBo"). This leads the kernel to think that the MicroSD card is
write protected, and causes a kernel panic during boot, as root fails to
mount RW.
This patch adds a quirk and an optional OF property, sdhci,broken-
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