On 1 April 2015 at 17:26, Hans de Goede hdego...@redhat.com wrote:
The eMMC on a tablet I've will stop working / communicating as soon as
the kernel executes:
mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
EXT_CSD_HPI_MGMT, 1,
[...]
- ability to hold off re-tuning if the card is busy
What do you mean by card is busy?
I guess, more accurately, any time the card is in a state that is
incapable
of supporting re-tuning. For example:
- DAT0 busy
This state is not specific to re-tuning. An SDIO device
Hi Chuanxiao,
-Original Message-
From: linux-mmc-ow...@vger.kernel.org [mailto:linux-mmc-
ow...@vger.kernel.org] On Behalf Of Chuanxiao Dong
Sent: Tuesday, March 17, 2015 1:10 PM
To: linux-mmc@vger.kernel.org
Subject: [PATCH 0/5] mmc: Soft Command queue implementation for
eMMC5.1
On 1/04/2015 10:59 p.m., Len Brown wrote:
Ad hoc testing with Lenovo Thinkpad 10 showed a stress
test could run for at least 24 hours with the patches,
compared to less than an hour without.
There is a patch in linux-next to delete C1E from BYT,
since it is problematic on multiple platforms.
I
On Thu, 2 Apr 2015 16:00:52 +0200 Ulf Hansson ulf.hans...@linaro.org wrote:
[...]
Also SDIO cards can have a custom sleep state where tuning won't
work.
Our SDIO wifi device has such a state and it can only come out of it
upon
CMD52 write or CMD14 (ExitSleep).
So how
Thanks Alex for review.
From my understanding, if host-areq == areq, then means the areq is the
current running request. By this way, driver will clear the executable ready
bit in slots and continue to find the next one. So the task with the same ID
won't be executed at the same time.
+
On 04/02/15 10:43, Ulf Hansson wrote:
[...]
- ability to hold off re-tuning if the card is busy
What do you mean by card is busy?
I guess, more accurately, any time the card is in a state that is
incapable
of supporting re-tuning. For example:
- DAT0 busy
This state is not
[...]
- ability to enable / disable re-tuning
Handled internally by the mmc core.
The host controller driver enables re-tuning based on whether the host
controller requires it for that transfer mode. For example, only the SDHCI
host controller knows if tuning is required for SDR50 mode
On 02/04/15 15:10, Ulf Hansson wrote:
On 2 April 2015 at 12:30, Arend van Spriel ar...@broadcom.com wrote:
On 04/02/15 10:43, Ulf Hansson wrote:
[...]
- ability to hold off re-tuning if the card is busy
What do you mean by card is busy?
I guess, more accurately, any time the card
On 2 April 2015 at 14:18, Adrian Hunter adrian.hun...@intel.com wrote:
On 02/04/15 15:10, Ulf Hansson wrote:
On 2 April 2015 at 12:30, Arend van Spriel ar...@broadcom.com wrote:
On 04/02/15 10:43, Ulf Hansson wrote:
[...]
- ability to hold off re-tuning if the card is busy
What do
On 04/02/15 14:25, Ulf Hansson wrote:
On 2 April 2015 at 14:18, Adrian Hunteradrian.hun...@intel.com wrote:
On 02/04/15 15:10, Ulf Hansson wrote:
On 2 April 2015 at 12:30, Arend van Sprielar...@broadcom.com wrote:
On 04/02/15 10:43, Ulf Hansson wrote:
[...]
- ability to hold off
On 02/04/15 15:27, Arend van Spriel wrote:
On 04/02/15 14:25, Ulf Hansson wrote:
On 2 April 2015 at 14:18, Adrian Hunteradrian.hun...@intel.com wrote:
On 02/04/15 15:10, Ulf Hansson wrote:
On 2 April 2015 at 12:30, Arend van Sprielar...@broadcom.com wrote:
On 04/02/15 10:43, Ulf Hansson
On 2 April 2015 at 12:30, Arend van Spriel ar...@broadcom.com wrote:
On 04/02/15 10:43, Ulf Hansson wrote:
[...]
- ability to hold off re-tuning if the card is busy
What do you mean by card is busy?
I guess, more accurately, any time the card is in a state that is
incapable
of
[...]
Also SDIO cards can have a custom sleep state where tuning won't work.
Our SDIO wifi device has such a state and it can only come out of it
upon
CMD52 write or CMD14 (ExitSleep).
So how will the mmc core know about these states? I guess we will
require SDIO func drivers to deal
On 2/04/2015 4:05 p.m., Ulf Hansson wrote:
[...]
- ability to enable / disable re-tuning
Handled internally by the mmc core.
The host controller driver enables re-tuning based on whether the host
controller requires it for that transfer mode. For example, only the SDHCI
host
On Wed, Apr 01, 2015 at 05:26:24PM +0200, Hans de Goede wrote:
The eMMC on the A13 based Utoo-P66 tablet does not properly support hpi,
and trying to enable it results in the eMMC not working, so add a child-node
describing the eMMC, and set the broken-hpi property on it.
Signed-off-by: Hans
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