From: Philip Rakity
The vmmc regulator should not rely on it being enabled in
the platform code. Expliciitly enable and disable the
regulator.
Signed-off-by: Philip Rakity
---
drivers/mmc/host/sdhci.c |7 +--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/h
From: Philip Rakity
On some systems the host controller does not support vccq
signaling. This is supplied by a dedicated regulator (vqmmc).
Add support for this regulator.
Signed-off-by: Philip Rakity
---
drivers/mmc/host/sdhci.c | 179 +
include
From: Philip Rakity
This definition is missing when CONFIG_REGULATOR is not defined.
This causes compiler errors when compiling sdhci.c. This can
be worked around by adding #ifdef CONFIG_REGULATOR .. #endif
but since other definitions are there we have defined the missing
definition
Signed-off-
From: Philip Rakity
currently only the capability_0 register can be set if
SDHCI_QUIRK_MISSING_CAPS is defined. This is a problem when
the capability_1 register also needs changing. Use the
SDHCI_QUIRK_MISSING_CAPS to allow both registers to be set.
Redefining caps[1] is useful when the board
From: Philip Rakity
currently only the capability_0 register can be set if
SDHCI_QUIRK_MISSING_CAPS is defined. This is a problem when
the capability_1 register also needs changing. Use the
SDHCI_QUIRK_MISSING_CAPS to allow both registers to be set.
Redefining caps[1] is useful when the board
From: Philip Rakity
Power needs to be removed from the card when switching to 1.8v fails.
If a regulator is used to control vmmc we need to turn the
regulator off and then back on otherwise power will not be removed
from the card.
Signed-off-by: Philip Rakity
---
drivers/mmc/host/sdhci.c |
From: Philip Rakity
The SD Host Controller may require a regulator to support signal
and voltage switching. Curently we support voltage (vmmc) but not
signal changing via a regulator. Add this support.
If a regulator is supported and voltage switching to 1.8V is
supported then use the vmmc reg
From: Philip Rakity
If we are using a regulator the SD Host Controller and the
regulator should agree about the voltages supported. Use
the common subset that is supported.
Signed-off-by: Philip Rakity
---
drivers/mmc/host/sdhci.c | 15 +++
1 files changed, 15 insertions(+), 0 d
From: Philip Rakity
V2
--
initialize caps[2] to 0.
remove else if
V1
--
host capability register caps[0] can be changed by the platform code
using a quirk
host capability_1 register caps[1] should also be allowed to be redefined.
This is useful if UHS or other modes are not supported that
are
From: Philip Rakity
CAPABILITY_1 can be changed by the platform code using a quirk
CAPALBILTY_2 should also be allowed to be redefined.
This is useful if UHS or other modes are not supported that
are defined in the the register but the platform code has
specific information that these value shou
From: Philip Rakity
The sd host controller spec indicates the the MAX_CURRENT value may be
returned as 0. In this case other methods need to be used to return
the current. If 0 is returned and there is a regulator, ask the regulator
for how much current is available.
Signed-off-by: Mark F. Bro
From: Philip Rakity
max_current_caps can return 0 if not available from the sd controller.
if no regulator is present or the regulator specifies a current
less then 200ma we will set the 200ma caps bit by default.
do not do this.
Signed-off-by: Philip Rakity
Reviewed-by: Aaron Lu
---
drivers
From: Philip Rakity
We have h/w that does not support 1.8v signaling even though the
controller does support this. If we enable 1.8v support UHS
cards are recognised but recovery to 3.3v is not possible
depending on the SD card.
Ensure that when we do not support 1.8v UHS mode cards can
work (i
From: Philip Rakity
A UHS sdio card that fails initialization at 1.8v signaling
is not in UHS mode. We cannot use the speed in the the cis
to reflect the bus speed as this is the maxiumum value and
will not reflect the fact that the host is operating at a
lower (non uhs) bus speed.
Signed-off-b
14 matches
Mail list logo
