On Wed, Nov 24, 2010 at 11:05:08AM +0100, Guennadi Liakhovetski wrote:
> This patch series slightly cleans up the sh_mmcif MMC driver and adds a
> DMA capability to it. One of the patches is not directly related, but is
> required for a proper DMA functionality. V2 limits the number of request
>
Need io accressors for pxa168 otherwise need to touch sdhci.c for returning
certain register values.
From: zhangfei gao [zhangfei@gmail.com]
Sent: Wednesday, November 24, 2010 9:31 PM
To: Philip Rakity
Cc: linux-mmc; Mark Brown
Subject: Re: [PATCH] sdh
Linus,
Please pull from:
git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc.git for-linus
to fix two regressions in -rc1 (SDIO devices and <8-bit MMC cards), two
longstanding bugs (rmmod race, enable SDIO IRQ wakeups), and some small
device support bugs. These have been tested in linux-nex
On Wed, Nov 24, 2010 at 4:30 PM, Philip Rakity wrote:
> Resend as plain text
>
> From 5ffe0546fb3d70dd97af178e474fbcdfa64ea4e8 Mon Sep 17 00:00:00 2001
> From: Philip Rakity
> Date: Wed, 24 Nov 2010 13:25:47 -0800
> Subject: [PATCH] sdhci: Kconfig: MMC_SDHCI_PXA: CPU_MMP2 no need IO_ACCESSORS
>
>
On Wed, Nov 24, 2010 at 12:29:57PM +0100, Takashi Iwai wrote:
> At Wed, 24 Nov 2010 10:59:35 +0100,
> Wolfram Sang wrote:
> >
> > On Wed, Nov 24, 2010 at 07:21:13AM +0100, Takashi Iwai wrote:
> >
> > > +/* Controller doesn't support VDD 180 for MMC (for SD/MMC combo chips) */
> > > +#define SDHCI
Resend as plain text
>From 5ffe0546fb3d70dd97af178e474fbcdfa64ea4e8 Mon Sep 17 00:00:00 2001
From: Philip Rakity
Date: Wed, 24 Nov 2010 13:25:47 -0800
Subject: [PATCH] sdhci: Kconfig: MMC_SDHCI_PXA: CPU_MMP2 no need IO_ACCESSORS
read and write to MMP2 controller in sdhci-pxa does not use
IO_ACCE
>From 5ffe0546fb3d70dd97af178e474fbcdfa64ea4e8 Mon Sep 17 00:00:00 2001
From: Philip Rakity
Date: Wed, 24 Nov 2010 13:25:47 -0800
Subject: [PATCH] sdhci: Kconfig: MMC_SDHCI_PXA: CPU_MMP2 no need IO_ACCESSORS
read and write to MMP2 controller in sdhci-pxa does not use
IO_ACCESSORS. MMP2 hardware
Hi Philip,
On Sun, Nov 21, 2010 at 11:17:09AM -0800, Philip Rakity wrote:
> a) QUIRK removed for 8 bit support since platform issue - not quirk
> b) platform Flag defined for sdhci-pxa.c and plat-pxa
> c) comments added to sdhci.c on usage
Thanks very much, I'll plan on sending this to Linus tomo
On Wed, Nov 24, 2010 at 02:15:57PM +0100, Linus Walleij wrote:
> > [ 10.136067] mmc0: frequency set to 0 in disable function, this means the
> > clock is already disabled.
>
> It didn't use to be like that back when I first wrote the patch, but
> it seems to be like
> that nowadays. So yes.
Hm
2010/11/23 Chris Ball :
> [ 10.136067] mmc0: frequency set to 0 in disable function, this means the
> clock is already disabled.
> [ 10.164089] mmc0: frequency set to 0 in disable function, this means the
> clock is already disabled.
> [ 10.192076] mmc0: frequency set to 0 in disable funct
At Wed, 24 Nov 2010 10:59:35 +0100,
Wolfram Sang wrote:
>
> On Wed, Nov 24, 2010 at 07:21:13AM +0100, Takashi Iwai wrote:
>
> > +/* Controller doesn't support VDD 180 for MMC (for SD/MMC combo chips) */
> > +#define SDHCI_QUIRK_MMC_VDD_180(1<<30)
>
> Can't we handle t
Have to add DMA slave configuration to enable DMA for the sh7372 MMCIF
controller.
Signed-off-by: Guennadi Liakhovetski
---
v2: no change
arch/arm/mach-shmobile/board-ap4evb.c | 10 ++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-shmobile/board-ap4evb
Replace pr_* with respective dev_*, sort headers alphabetically, remove an
unused struct member, superfluous variable initialisations and type-casts.
Signed-off-by: Guennadi Liakhovetski
---
v2: no change
drivers/mmc/host/sh_mmcif.c | 63 --
1 files ch
In sh_mmcif.c an event is used as a completion, switch over. When a
wait_for_completion*_timeout() returns, it suffices to check the remaining
time, setting an additional flag before waking up the waiting task only reduces
the race window, but does not eliminate it. This patch switches the driver t
The MMCIF controller on sh-mobile platforms can use the DMA controller for data
transfers. Interface to the SH dmaengine driver to enable DMA. We also have to
lower the maximum number of segments to match with the number od DMA
descriptors on SuperH, this doesn't significantly affect driver's PIO
p
This patch series slightly cleans up the sh_mmcif MMC driver and adds a
DMA capability to it. One of the patches is not directly related, but is
required for a proper DMA functionality. V2 limits the number of request
segments, instead of raising the number of DMA descriptors in shdma.c.
This d
Add DMA slave IDs and slave definitions for MMCIF on sh7372.
Signed-off-by: Guennadi Liakhovetski
---
v2: no change
arch/arm/mach-shmobile/include/mach/sh7372.h |2 ++
arch/arm/mach-shmobile/setup-sh7372.c| 10 ++
2 files changed, 12 insertions(+), 0 deletions(-)
diff --
On Wed, Nov 24, 2010 at 07:21:13AM +0100, Takashi Iwai wrote:
> +/* Controller doesn't support VDD 180 for MMC (for SD/MMC combo chips) */
> +#define SDHCI_QUIRK_MMC_VDD_180 (1<<30)
Can't we handle this more generic? Like setting ocr_avail_* from
sdhci-pci.c somehow (
On Wed, Nov 24, 2010 at 9:02 AM, Philip Rakity wrote:
> Resent -- now plain text
>
> MMC spec calls for the host to send 74 clocks to the card
> during initialization, right after voltage stabilization.
> the mmp2 controller does not start the clock when the clock
> is enabled but does provide a w
>
> Basic question. Do you have any performance gain or improvement?
> In my test environment. no performance gain. Yes I know it's not for
> performance improvement.
My understanding:
If BKOPS feature is not enabled, the background operations will be started when
card handles some read or write
Hi,
Basic question. Do you have any performance gain or improvement?
In my test environment. no performance gain. Yes I know it's not for
performance improvement.
How to measure or check it has some improvement?
Any ideas?
Thank you,
Kyungmin Park
On Tue, Nov 23, 2010 at 5:43 PM, Chuanxiao Dong
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