and SDR25 in the host
capabilities data structure for all V3.0 host controllers, only set them
if SDR104, SDR50 or DDR50 is set in the host capabilities register. This
will prevent the switch to 1.8V later.
Signed-off-by: Al Cooper acoo...@gmail.com
---
drivers/mmc/host/sdhci.c |5 +++--
1
If the HIGHSPEED capabilities bit is not set, limit the MMC clock
speed to 25MHz.
Signed-off-by: Al Cooper acoo...@gmail.com
---
drivers/mmc/core/mmc.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 54df5ad..912c893
not be as simple as snapping the time at the loop start and
checking for 150ms to pass because the loop queues the CMD19's and
uses events to wait for completion so the time would include
all the normal scheduler latencies.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/host/sdhci.c | 24
From: Al Cooper acoo...@broadcom.com
Add support for the LOCK_UNLOCK command. This command can lock,
unlock, set password, clear password and force erase SD and
MMC cards.
refs #SWLINUX-2545
Signed-off-by: Al Cooper acoo...@broadcom.com
---
drivers/mmc/core/mmc_ops.c | 112
From: Al Cooper acoo...@broadcom.com
This function will try to get a password for the card and use the
password to unlock it. It will leave the card state flag set
appropriately.
refs #SWLINUX-2545
Signed-off-by: Al Cooper acoo...@broadcom.com
---
drivers/mmc/core/core.c | 28
From: Al Cooper acoo...@broadcom.com
Create a sysfs interface that allows a user to manage an inserted
cards lock state. The sysfs attribute lock will be added to the
device's sysfs directory. The following commands are supported:
setpw - Set the cards password
clearpw - Clear the cards
From: Al Cooper acoo...@broadcom.com
Change the MMC block layer to avoid reading the partition table
when the card is locked because read commands will fail.
refs #SWLINUX-2545
Signed-off-by: Al Cooper acoo...@broadcom.com
---
drivers/mmc/card/block.c | 7 +++
1 file changed, 7 insertions
From: Al Cooper acoo...@broadcom.com
- Change mmc_init_card() to check for a locked card and, if found,
try to get a password using the kernel KEYS subsystem, unlock the card
and continue. Unlike SD cards, MMC cards support all initialization
commands when locked so the init sequence can
From: Al Cooper acoo...@broadcom.com
- Change mmc_sd_init_card() to check for a locked card and, if found,
try to get a password using the kernel KEYS subsystem, unlock the card
and continue. The unlock can fail due to a bad password, no password
or during boot when the rootfs that holds
, unlock,
assign a password, clear a password and force erase a card. The
unlock_retry attribute is used to retry an unlock that failed
during boot because the rootfs was not yet available with the password.
Al Cooper (7):
mmc: lock: Use the kernel KEYS subsystem to get a card's password
mmc: lock
From: Al Cooper acoo...@broadcom.com
Use the kernel KEYS subsystem to get a password for a card based on
the card's CID. This code was based on a patch set submitted by
Anderson Briglia in 2006.
refs #SWLINUX-2545
Signed-off-by: Al Cooper acoo...@broadcom.com
---
drivers/mmc/core/Kconfig | 8
- Unlock the card
erase - Force erase the card, clear the password and unlock it
Commands that require a password will request the password through
the kernels KEYS subsystem.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/mmc.c | 81
Add support for the LOCK_UNLOCK command. This command can lock,
unlock, set password, clear password and force erase SD and
MMC cards.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/mmc_ops.c | 112 +
drivers/mmc/core/mmc_ops.h | 13
Use the kernel KEYS subsystem to get a password for a card based on
the card's CID. This code was based on a patch set submitted by
Anderson Briglia in 2006.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/Kconfig | 8
drivers/mmc/core/core.c | 105
state will be cleared
and the block layer restarted which will now read the partition table.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/mmc.c | 46 --
1 file changed, 44 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/core
functions to reduce the number of CONFIG ifdefs.
- Add static to a few functions that were local.
- Use pr_warn instead of pr_warning.
- Improve a few variable names and messages.
Al Cooper (7):
mmc: lock: Use the kernel KEYS subsystem to get a card's password
mmc: lock: Add low level
This function will try to get a password for the card and use the
password to unlock it. It will leave the card state flag set
appropriately.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/core.c | 26 ++
1 file changed, 26 insertions(+)
diff --git
commands or to
trigger a retry, presumably after the password has be made available
by user space.
- Add sysfs attribute unlock_retry that will try again to unlock
and fully init the card.
- Add sysfs attribute lock to enable sysfs LOCK maintenance
commands
Signed-off-by: Al Cooper alcoop
Change the MMC block layer to avoid reading the partition table
when the card is locked because read commands will fail.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/card/block.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/drivers/mmc/card/block.c b/drivers/mmc
the rootfs was not yet available to setup the
keys password. The unlock_retry attribute is a NOP for unlocked
cards, so user space init processing can write a 1 to all instances
found in the sysfs once the rootfs with keyutils functionality is
available.
Al Cooper (7):
mmc: lock: Use the kernel
commands or to
trigger a retry, presumably after the password has be made available
by user space.
- Add sysfs attribute unlock_retry that will try again to unlock
and fully init the card.
- Add sysfs attribute lock to enable sysfs LOCK maintenance
commands
Signed-off-by: Al Cooper alcoop
A locked card will return an error for all reads/writes to the
block device, so prevent the block layer from coming up until
the card is unlocked.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/card/block.c | 10 ++
1 file changed, 10 insertions(+)
diff --git a/drivers/mmc
will be cleared
and the block layer will be allowed to come up.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/mmc.c | 46 --
1 file changed, 44 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index
Add support for the LOCK_UNLOCK command. This command can lock,
unlock, set password, clear password and force erase SD and
MMC cards.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/mmc_ops.c | 109 +
drivers/mmc/core/mmc_ops.h | 13
Use the kernel KEYS subsystem to get a password for a card based on
the card's CID. This code was based on a patch set submitted by
Anderson Briglia in 2006.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/Kconfig | 8
drivers/mmc/core/core.c | 105
- Unlock the card
erase - Force erase the card, clear the password and unlock it
Commands that require a password will request the password through
the kernels KEYS subsystem.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/mmc.c | 81
on BASE_CLK_FREQ in the host
CAPS register). This means that a host controller that doesn't
support HS200 mode but has a base clock of 100MHz and an eMMC module
that supports HS200 speeds will end up using a 100MHz clock.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/mmc.c |2 ++
1
on BASE_CLK_FREQ in the host
CAPS register). This means that a host controller that doesn't
support HS200 mode but has a base clock of 100MHz and an eMMC module
that supports HS200 speeds will end up using a 100MHz clock.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/mmc.c |2 ++
1
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/host/sdhci-pltfm.c |4 +++-
drivers/mmc/host/sdhci-pltfm.h |1 +
2 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 3145a78..e605509 100644
before converting to write blocks. This allow mkfs.ext4 to run
in 30 secs instead of 10 hours.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/core.c | 7 ++-
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index
- Unlock the card
erase - Force erase the card, clear the password and unlock it
Commands that require a password will request the password through
the kernels KEYS subsystem.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/mmc.c | 81
commands or to
trigger a retry, presumably after the password has be made available
by user space.
- Add sysfs attribute unlock_retry that will try again to unlock
and fully init the card.
- Add sysfs attribute lock to enable sysfs LOCK maintenance
commands
Signed-off-by: Al Cooper alcoop
, CMD16 and lock card command class. Thus, the host is
allowed to reset, initialize, select, query for status, etc., but
not to access data on the card.
Al Cooper (7):
mmc: lock: Use the kernel KEYS subsystem to get a card's password
mmc: lock: Add low level LOCK_UNLOCK command
mmc: lock
Change the MMC block layer to avoid reading the partition table
when the card is locked because read commands will fail.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/card/block.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/drivers/mmc/card/block.c b/drivers/mmc
Add support for the LOCK_UNLOCK command. This command can lock,
unlock, set password, clear password and force erase SD and
MMC cards.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/core.c| 5 +-
drivers/mmc/core/mmc_ops.c | 150
state will be cleared
and the block layer restarted which will now read the partition table.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/mmc.c | 46 --
1 file changed, 44 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/core
This function will try to get a password for the card and use the
password to unlock it. It will leave the card state flag set
appropriately.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/core.c | 26 ++
1 file changed, 26 insertions(+)
diff --git
Use the kernel KEYS subsystem to get a password for a card based on
the card's CID. This code was based on a patch set submitted by
Anderson Briglia in 2006.
Signed-off-by: Al Cooper alcoop...@gmail.com
---
drivers/mmc/core/Kconfig | 8
drivers/mmc/core/core.c | 97
operations if the card is locked.
One can unlock the card after system boot by following below steps
1) Add key for this card.
2) Unlock the card using sysfs attribute 'unlock_retry' for this card.
Cc: Al Cooper alcoop...@gmail.com
Cc: Chris Ball c...@laptop.org
Signed-off-by: Abbas Raza abbas_r
Signed-off-by: Al Cooper <alcoop...@gmail.com>
---
.../devicetree/bindings/mmc/sdhci-brcmstb.txt | 16 +++
drivers/mmc/host/Kconfig | 12 ++
drivers/mmc/host/Makefile | 1 +
drivers/mmc/host/sdhci-brcmstb.c
Add quirk to disable SDR50 mode for controllers/boards that have
problems with this mode.
Signed-off-by: Al Cooper <alcoop...@gmail.com>
---
drivers/mmc/host/sdhci.c | 3 +++
drivers/mmc/host/sdhci.h | 2 ++
2 files changed, 5 insertions(+)
diff --git a/drivers/mmc/host/sdhci.c b/drive
This includes both newly added and previously undocumented
properties.
Signed-off-by: Al Cooper <alcoop...@gmail.com>
---
Documentation/devicetree/bindings/mmc/mmc.txt | 8
1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt
b/Documen
t of the driver and into the Device Tree node.
Signed-off-by: Al Cooper <alcoop...@gmail.com>
---
drivers/mmc/host/sdhci-pltfm.c | 10 +-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 87fb5ea..81eb4
- Don't create a new QUIRK to handle broken SDR50 mode in
the controller. The functionality was moved into the
sdhci-brcmstb driver.
Al Cooper (3):
mmc: sdhci-pltfm: Add DT properties to set various QUIRKS
mmc: Add Device Tree binding supported by sdhci-pltfm.c
mmc: sdhci-brcmstb: Add
the Device Tree node.
Signed-off-by: Al Cooper <alcoop...@gmail.com>
---
drivers/mmc/host/sdhci-pltfm.c | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/mmc/host/sdhci-pltfm.c b/drivers/mmc/host/sdhci-pltfm.c
index 87fb5ea..cc0730c 100644
--- a/drivers/mmc/
Signed-off-by: Al Cooper <alcoop...@gmail.com>
---
.../devicetree/bindings/mmc/sdhci-brcmstb.txt | 36 +
drivers/mmc/host/Kconfig | 12 ++
drivers/mmc/host/Makefile | 1 +
drivers/mmc/host/sdhci-brcmstb.c
This includes both newly added and previously undocumented
properties.
Signed-off-by: Al Cooper <alcoop...@gmail.com>
---
Documentation/devicetree/bindings/mmc/mmc.txt | 8
1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt
b/Documen
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