On Fri, Sep 16, 2011 at 5:47 PM, Ohad Ben-Cohen wrote:
> Maybe. I was wondering why nobody cared so far about putting delays at
> the power down path then, but I guess no one was really powering down
> their controllers ? I know Marvell did, using some out-of-tree code,
> but IIUC Marvell utilizes
On Fri, Sep 16, 2011 at 6:33 PM, Daniel Drake wrote:
> Do you know the source of that info?
No, not more than what the comments say.
It also seems that the first delay was originally 1ms and at some
point it was increased to 2ms (commit
f9996aee36921e8f1d499de1b2ea380855cf6d97 "mmc: increase pow
On Thu, Sep 1, 2011 at 2:37 AM, zhangfei gao wrote:
> Daniel once suggested reusing vmmc, however we found CD pin requires
> vmmc to be alwayes on.
> If vmmc is dynamically power off, CD pin will be low, which indicating
> card is inserted by mistake.
> For example when no card inserted, CD pin wi
On Wed, Sep 7, 2011 at 8:12 PM, Ohad Ben-Cohen wrote:
> I wouldn't call them random - they're pretty much explained.
Do you know the source of that info? It probably also justifies what
we need here.
If short delays are needed when messing with power in the powerup path
(i.e. "we just touched po
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 patch adds the power class selection feature available
for mmc versions 4.0 and above.
During the enumeration stage before switching to the lower
data bus, check if the power class is supported for the
current bus width. If the power class is available then
switch to the power class and use th
This patch version removes some checkpatch error.
Earlier versions were checked with the older checkpatch.pl
which didnt give any checkpatch errors. This patch uses
the checkpatch.pl in the latest script folder.
Girish K S (1):
mmc: core: eMMC 4.5 Power Class Selection Feature
drivers/mmc/core
This patch adds the support for power off notify feature
available in eMMC 4.5 devices.
If the the host has support for this feature, then the
mmc core will notify it to the device by setting the
POWER_OFF_NOTIFICATION byte in the extended csd register
with a value 1(POWER_ON).
This
This patch adds the power off notification handling
during suspend and system poweroff.
For suspend mode short timeout is used, whereas for the
normal poweroff long timeout is used.
Signed-off-by: Girish K S
---
drivers/mmc/core/core.c | 34 ++
drivers/mmc/core
This patch version removes some checkpatch error.
Earlier versions were checked with the older checkpatch.pl
which didnt give any checkpatch errors. This patch uses
the checkpatch.pl in the latest script folder.
Girish K S (2):
mmc: core: Add power off notify feature(eMMC 4.5)
mmc: core: Add P
This patch adds the power class selection feature available
for mmc versions 4.0 and above.
During the enumeration stage before switching to the lower
data bus, check if the power class is supported for the
current bus width. If the power class is available then
switch to the power class and use th
This patch adds the power class selection feature available
for mmc versions 4.0 and above.
During the enumeration stage before switching to the lower
data bus, check if the power class is supported for the
current bus width. If the power class is available then
switch to the power class and use th
This patch version removes some checkpatch error.
Earlier versions were checked with the older checkpatch.pl
which didnt give any checkpatch errors. This patch uses
the checkpatch.pl in the latest script folder.
Girish K S (1):
mmc: core: eMMC 4.5 Power Class Selection Feature
drivers/mmc/core
This patch adds the power off notification handling
during suspend and system poweroff.
For suspend mode short timeout is used, whereas for the
normal poweroff long timeout is used.
Signed-off-by: Girish K S
---
drivers/mmc/core/core.c | 34 ++
drivers/mmc/core
This patch adds the support for power off notify feature
available in eMMC 4.5 devices.
If the the host has support for this feature, then the
mmc core will notify it to the device by setting the
POWER_OFF_NOTIFICATION byte in the extended csd register
with a value 1(POWER_ON).
This
This patch version removes some checkpatch error.
Earlier versions were checked with the older checkpatch.pl
which didnt give any checkpatch errors. This patch uses
the checkpatch.pl in the latest script folder.
Girish K S (2):
mmc: core: Add power off notify feature(eMMC 4.5)
mmc: core: Add P
Hi Aaron,
On 09/16/2011 04:05 AM, Aaron Lu wrote:
Hi Ulf,
I'm not familiar with mmc, but I've some questions on sd below.
On Thu, Sep 15, 2011 at 05:50:38PM +0200, Ulf Hansson wrote:
Earlier all cards where initiated with bus mode set as OPENDRAIN, and then
later switched to PUSHPULL. Accordi
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