On Fri, Sep 23, 2011 at 7:05 AM, Praveen G K wrote:
> I am working on the block driver module of the eMMC driver (SDIO 3.0
> controller). I am seeing very low write speed for eMMC transfers. On
> further debugging, I observed that every 63rd and 64th transfer takes
> a long time.
Are you not j
On Tue, Sep 27, 2011 at 1:42 PM, Ulf Hansson wrote:
> The purpose of the vdd_handler does not make sense. We remove it
> and use a generic approach instead. A new ios_handler is added, the
> purpose of which e.g. can be to control GPIO pins to a levelshifter.
>
> Previously the vdd_handler was al
On Tue, Sep 27, 2011 at 1:42 PM, Ulf Hansson wrote:
> @@ -30,6 +43,8 @@ struct dma_chan;
> * @cd_invert: true if the gpio_cd pin value is active low
> * @capabilities: the capabilities of the block as implemented in
> * this platform, signify anything MMC_CAP_* from mmc/host.h
> + * @sigdir: a
On Tue, Sep 27, 2011 at 1:42 PM, Ulf Hansson wrote:
> diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
> index 4da20ec..32de82b 100644
> --- a/drivers/mmc/host/mmci.c
> +++ b/drivers/mmc/host/mmci.c
> @@ -53,6 +53,7 @@ static unsigned int fmax = 515633;
> * @st_clkdiv: true if usin
On Tue, Sep 27, 2011 at 9:45 AM, Ulf Hansson wrote:
> This patchserie fixes a couple of SDIO related issues for the mmci host
> driver. The intention is to keep each patch small and to have one patch
> for one problem. It might makes sence to squash some of the patches, but
> I leave this for dis
This patch adds the support of the HS200 bus speed for
eMMC 4.5 devices.
The eMMC 4.5 devices have support for 200MHz bus speed.
The mmc core and host modules have been touched to add support
for this module.
It is necessary to know the card type in the sdhci.c file to
add support for eMMC tuning f
This is a duplicate patch from our security machine.
Please ignore this resending.
Best regards,
Seungwon Jeon.
>
> This patch adds the support for predefined multiple block read/write.
>
> Signed-off-by: Seungwon Jeon
> ---
> drivers/mmc/host/dw_mmc.c | 32 ++--
2011/9/27 J Freyensee :
> On 09/23/2011 10:07 PM, Namjae Jeon wrote:
>>
>> It allows gerneral purpose partitions in MMC Device.
>> And I try to simpliy make mmc_blk_alloc_parts using mmc_part structure
>> suggested by Andrei Warkentin.
>> After patching, we can see general purpose partitions like t
This patch adds the support for predefined multiple block read/write.
Signed-off-by: Seungwon Jeon
---
drivers/mmc/host/dw_mmc.c | 32 ++--
1 files changed, 26 insertions(+), 6 deletions(-)
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 0e
The purpose of the vdd_handler does not make sense. We remove it
and use a generic approach instead. A new ios_handler is added, the
purpose of which e.g. can be to control GPIO pins to a levelshifter.
Previously the vdd_handler was also used for making additional
changes to the power register bit
The ST Micro variant supports bus signal direction indication. A new
member in the variant struct is added for this.
Moreover the actual signal direction configuration is board specific,
thus the amba mmci platform data is extended with a new member to be
able provide mmci with these specific boar
In the set_ios function there has been a mess of how the power register
can be modified. One part, especially strange was related to the use of
the vdd_handler.
Note that this patch serie is formated based upon the previously submitted
patch serie for mmci called "mmc: mmci: Improvements and bugf
From: Sebastian Rasmussen
Use variant data to store hardware controller deviations concerning
power registers to improve readability of the code.
Signed-off-by: Sebastian Rasmussen
Signed-off-by: Ulf Hansson
Reviewed-by: Linus Walleij
---
drivers/mmc/host/mmci.c | 22 +-
This Patch adds the support for Dual Buffer Descriptor mode of
Operation for the dw_mmc driver.The patch also provides the configurability
Option for choosing DUAL_BUFFER mode or the chained modes through menuconfig.
The Menuconfig option for selecting Dual Buffer mode or chained mode
is selected o
LEDS_CLASS is required by leds and trigger drivers, but we can build it as
module. So change this option back as tristate and treak the help message
as well.
LEDS_TRIGGERS depends on LEDS_CLASSS, which should be tristate. So set it
as tristate too and update header files as well.
Change those i
Move the SDIO preparation to be done before the DMA job is setup.
This makes it possible to do DMA for SDIO transfers as well as the
earlier supported pio mode.
Signed-off-by: Ulf Hansson
Signed-off-by: Stefan Nilsson XK
---
drivers/mmc/host/mmci.c | 10 +-
1 files changed, 5 insertio
From: Stefan Nilsson XK
For data writes smaller <= 8 bytes (only SDIO case), HW flow control was
disabled but never re-enabled again. This meant that a following large read
request would randomly give buffer overrun errors.
Moreover HW flow control is not needed for transfers that fits in the
FI
From: Stefan Nilsson XK
For the ux500v2 variant of the PL18x block, non power of two block
sizes are supported. This will make it possible to decrease data
overhead for SDIO transfers.
Signed-off-by: Stefan Nilsson XK
Signed-off-by: Ulf Hansson
---
drivers/mmc/host/mmci.c |9 +++--
1
From: Stefan Nilsson XK
Corrects a bug in pio read when reading packets < 4 bytes. These
small packets are only relevant for SDIO transfers.
Signed-off-by: Ulf Hansson
Signed-off-by: Stefan Nilsson XK
---
drivers/mmc/host/mmci.c | 19 ++-
1 files changed, 18 insertions(+), 1
This patchserie fixes a couple of SDIO related issues for the mmci host
driver. The intention is to keep each patch small and to have one patch
for one problem. It might makes sence to squash some of the patches, but
I leave this for discussion.
Stefan Nilsson XK (3):
mmc: mmci: Bugfix in pio re
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