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From: Martin Guy <martinwguy-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: H Hartley Sweeten
	<hartleys-3FF4nKcrg1dE2c76skzGb0EOCMrvLtNR@public.gmane.org>
Cc: "spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org"
	<spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
	Mika Westerberg <mika.westerberg-X3B1VOXEql0@public.gmane.org>,
	"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
	<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
Subject: Re: [PATCH v2 2/3] ep93xx: added chip revision reading function
Date: Fri, 26 Mar 2010 15:40:01 +0000	[thread overview]
Message-ID: <56d259a01003260840sacc120ep7fd74ab2c33a8c4a@mail.gmail.com> (raw)
In-Reply-To: <0D753D10438DA54287A00B02708426976368F66FD1-gaq956PjLg32KbjnnMDalRurcAul1UnsRrxOEX5GOmysTnJN9+BGXg@public.gmane.org>

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On 3/25/10, H Hartley Sweeten <hartleys-3FF4nKcrg1dE2c76skzGb0EOCMrvLtNR@public.gmane.org> wrote:
>  For parts 1 and 3.
>
>  I tried testing them in my setup with the mmc_spi.c and sst25l.c drivers.  Both
>  did not work.  For some reason the data read is always either 0x00 or 0xff.
>
>  I will try to get some time this week/weekend to look into this.

I got these working with the Sim.One board without modification.
The data rate when dd'ing from the block device is slightly slower
than the Cirrus Logic patches (222kB/s instead of 235kB/s), and I got
the same kind of write errors at the same frequency as we did with the
Cirrus code, but this seems to be some problem with our board. Unlike
the CIrrus code, it successfully retries failed multi-block read
requests using single-block reads.

In case it's useful to you, I attach the first hack of the
modifications I made to the board description file
I'm not sure it's right, and I haven't coded in the use of the
MMC-card-present GPIO interrupt line yet, but it "seems to work" ^TM

    M

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WARNING: multiple messages have this Message-ID (diff)
From: martinwguy@gmail.com (Martin Guy)
To: linux-arm-kernel@lists.infradead.org
Subject: [spi-devel-general] [PATCH v2 2/3] ep93xx: added chip revision reading function
Date: Fri, 26 Mar 2010 15:40:01 +0000	[thread overview]
Message-ID: <56d259a01003260840sacc120ep7fd74ab2c33a8c4a@mail.gmail.com> (raw)
In-Reply-To: <0D753D10438DA54287A00B02708426976368F66FD1@AUSP01VMBX24.collaborationhost.net>

On 3/25/10, H Hartley Sweeten <hartleys@visionengravers.com> wrote:
>  For parts 1 and 3.
>
>  I tried testing them in my setup with the mmc_spi.c and sst25l.c drivers.  Both
>  did not work.  For some reason the data read is always either 0x00 or 0xff.
>
>  I will try to get some time this week/weekend to look into this.

I got these working with the Sim.One board without modification.
The data rate when dd'ing from the block device is slightly slower
than the Cirrus Logic patches (222kB/s instead of 235kB/s), and I got
the same kind of write errors at the same frequency as we did with the
Cirrus code, but this seems to be some problem with our board. Unlike
the CIrrus code, it successfully retries failed multi-block read
requests using single-block reads.

In case it's useful to you, I attach the first hack of the
modifications I made to the board description file
I'm not sure it's right, and I haven't coded in the use of the
MMC-card-present GPIO interrupt line yet, but it "seems to work" ^TM

    M
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  parent reply	other threads:[~2010-03-26 15:40 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-03-18 16:59 [PATCH v2 0/3] spi: driver for Cirrus EP93xx SPI controller Mika Westerberg
2010-03-18 16:59 ` Mika Westerberg
     [not found] ` <cover.1268930557.git.mika.westerberg-X3B1VOXEql0@public.gmane.org>
2010-03-18 17:00   ` [PATCH v2 1/3] spi: implemented " Mika Westerberg
2010-03-18 17:00     ` Mika Westerberg
     [not found]   ` <c222c3df9c94d9ec919817f640a953e4f45ae99b.1268930557.git.mika.westerberg-X3B1VOXEql0@public.gmane.org>
2010-03-18 17:00     ` [PATCH v2 3/3] ep93xx: SPI driver platform support code Mika Westerberg
2010-03-18 17:00       ` Mika Westerberg
2010-03-18 17:27     ` [PATCH v2 2/3] ep93xx: added chip revision reading function H Hartley Sweeten
2010-03-18 17:27       ` [spi-devel-general] " H Hartley Sweeten
     [not found]       ` <0D753D10438DA54287A00B02708426976368AC725D-gaq956PjLg32KbjnnMDalRurcAul1UnsRrxOEX5GOmysTnJN9+BGXg@public.gmane.org>
2010-03-25  9:06         ` Mika Westerberg
2010-03-25  9:06           ` [spi-devel-general] " Mika Westerberg
     [not found]           ` <20100325090638.GA20512-WfG2TfFPcQ9S6P4I59wummXnswh1EIUO@public.gmane.org>
2010-03-25 17:20             ` H Hartley Sweeten
2010-03-25 17:20               ` [spi-devel-general] " H Hartley Sweeten
     [not found]               ` <0D753D10438DA54287A00B02708426976368F66FD1-gaq956PjLg32KbjnnMDalRurcAul1UnsRrxOEX5GOmysTnJN9+BGXg@public.gmane.org>
2010-03-26 15:40                 ` Martin Guy [this message]
2010-03-26 15:40                   ` Martin Guy
     [not found]   ` <9de3769ae253830fb0eebc98d299137c59c69b8c.1268930557.git.mika.westerberg-X3B1VOXEql0@public.gmane.org>
2010-03-18 17:00     ` Mika Westerberg
2010-03-18 17:00       ` Mika Westerberg
2010-03-20 18:07       ` Martin Guy
2010-03-20 18:25         ` Daniel Mack
2010-03-20 18:40           ` Martin Guy
2010-03-20 19:31             ` H Hartley Sweeten
2010-03-20 19:48               ` Martin Guy
2010-03-20 18:31         ` Mika Westerberg
2010-03-20 19:42           ` H Hartley Sweeten
2010-03-21 18:45             ` Mika Westerberg
2010-03-25 13:49     ` [PATCH v2 1/3] spi: implemented driver for Cirrus EP93xx SPI controller Martin Guy
2010-03-25 13:49       ` Martin Guy
     [not found]       ` <56d259a01003250649ubf0e32ejc15e4f3b45ec43cd-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-03-25 18:43         ` Mika Westerberg
2010-03-25 18:43           ` Mika Westerberg
     [not found]           ` <20100325184316.GB20512-WfG2TfFPcQ9S6P4I59wummXnswh1EIUO@public.gmane.org>
2010-04-01  0:15             ` Martin Guy
2010-04-01  0:15               ` Martin Guy
     [not found]               ` <s2n56d259a01003311715ke5b93a96v9d453ec32f08ec29-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-01  3:00                 ` Ryan Mallon
2010-04-01  3:00                   ` Ryan Mallon
2010-04-01  6:26                 ` Mika Westerberg
2010-04-01  6:26                   ` Mika Westerberg
2010-04-06  5:44                 ` Mika Westerberg
2010-04-06  5:44                   ` Mika Westerberg
     [not found]                   ` <20100406054418.GA27465-WfG2TfFPcQ9S6P4I59wummXnswh1EIUO@public.gmane.org>
2010-04-06 12:50                     ` Martin Guy
2010-04-06 12:50                       ` Martin Guy
     [not found]                       ` <s2g56d259a01004060550me72bd64cr35e4a83c495d6909-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-06 18:18                         ` Mika Westerberg
2010-04-06 18:18                           ` Mika Westerberg
     [not found]                           ` <20100406181839.GA2685-WfG2TfFPcQ9S6P4I59wummXnswh1EIUO@public.gmane.org>
2010-04-06 21:28                             ` Martin Guy
2010-04-06 21:28                               ` Martin Guy
     [not found]                               ` <x2r56d259a01004061428raffb32e9o1d42570c79c0ee56-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-09 17:56                                 ` Martin Guy
2010-04-09 17:56                                   ` Martin Guy
     [not found]                                   ` <l2j56d259a01004091056i91598adub4201b47c4a86a90-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2010-04-09 18:08                                     ` Martin Guy
2010-04-09 18:08                                       ` Martin Guy
2010-04-10 15:54                                     ` Mika Westerberg
2010-04-10 15:54                                       ` Mika Westerberg
     [not found]                                       ` <20100410155443.GG2685-WfG2TfFPcQ9S6P4I59wummXnswh1EIUO@public.gmane.org>
2010-04-11 14:24                                         ` Martin Guy
2010-04-11 14:24                                           ` Martin Guy
2010-04-12 10:03                                         ` Martin Guy
2010-04-12 10:03                                           ` Martin Guy

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