litmus-rt-odroidx.git/drivers/mmc, branch odroidx

Apply k4412 kernel from HardKernel for ODROID-X.

2012-09-28T18:50:15+00:00

mmc: sdhci-pci: CaFe has broken card detection

2012-08-09T15:27:33+00:00

commit 55fc05b7414274f17795cd0e8a3b1546f3649d5e upstream.

At http://dev.laptop.org/ticket/11980 we have determined that the
Marvell CaFe SDHCI controller reports bad card presence during
resume. It reports that no card is present even when it is.
This is a regression -- resume worked back around 2.6.37.

Around 400ms after resuming, a "card inserted" interrupt is
generated, at which point it starts reporting presence.

Work around this hardware oddity by setting the
SDHCI_QUIRK_BROKEN_CARD_DETECTION flag.
Thanks to Chris Ball for helping with diagnosis.

Signed-off-by: Daniel Drake 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

mmc: sdio: avoid spurious calls to interrupt handlers

2012-06-01T07:13:00+00:00

commit bbbc4c4d8c5face097d695f9bf3a39647ba6b7e7 upstream.

Commit 06e8935feb ("optimized SDIO IRQ handling for single irq")
introduced some spurious calls to SDIO function interrupt handlers,
such as when the SDIO IRQ thread is started, or the safety check
performed upon a system resume.  Let's add a flag to perform the
optimization only when a real interrupt is signaled by the host
driver and we know there is no point confirming it.

Reported-by: Sujit Reddy Thumma 
Signed-off-by: Nicolas Pitre 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

mmc: unbreak sdhci-esdhc-imx on i.MX25

2012-05-07T15:56:35+00:00

commit b89152824f993a9572b47eb31f4579feadeac34c upstream.

This was broken by me in 37865fe91582582a6f6c00652f6a2b1ff71f8a78
("mmc: sdhci-esdhc-imx: fix timeout on i.MX's sdhci") where more
extensive tests would have shown that read or write of data to the
card were failing (even if the partition table was correctly read).

Signed-off-by: Eric Bénard 
Acked-by: Wolfram Sang 
Signed-off-by: Chris Ball 
Signed-off-by: Jonathan Nieder 
Signed-off-by: Greg Kroah-Hartman

mmc: atmel-mci: correct data timeout computation

2012-04-13T15:14:07+00:00

commit 66292ad92c6d3f2f1c137a1c826b331ca8595dfd upstream.

The HSMCI operates at a rate of up to Master Clock divided by two.
Moreover previous calculation can cause overflows and so wrong
timeouts.

Signed-off-by: Ludovic Desroches 
Acked-by: Nicolas Ferre 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

mmc: sdhci-esdhc-imx: fix for mmc cards on i.MX5

2012-03-12T17:32:55+00:00

commit 5b6b0ad6e572b32a641116aaa5f897ffebe31e44 upstream.

On i.MX53 we have to write a special SDHCI_CMD_ABORTCMD to the
SDHCI_TRANSFER_MODE register during a MMC_STOP_TRANSMISSION
command. This works for SD cards. However, with MMC cards
the MMC_SET_BLOCK_COUNT command is used instead, but this
needs the same handling. Fix MMC cards by testing for the
MMC_SET_BLOCK_COUNT command aswell. Tested on a custom i.MX53
board with a Transcend MMC+ card and eMMC.

The kernel started used MMC_SET_BLOCK_COUNT in 3.0, so this
is a regression for these boards introduced in 3.0; it should
go to 3.0/3.1/3.2-stable.

Signed-off-by: Sascha Hauer 
Acked-by: Shawn Guo 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

mmc: core: check for zero length ioctl data

2012-03-01T00:33:42+00:00

commit 4d6144de8ba263eb3691a737c547e5b2fdc45287 upstream.

If the read or write buffer size associated with the command sent
through the mmc_blk_ioctl is zero, do not prepare data buffer.

This enables a ioctl(2) call to for instance send a MMC_SWITCH to set
a byte in the ext_csd.

Signed-off-by: Johan Rudholm 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

mmc: sd: Fix SDR12 timing regression

2012-01-26T01:24:46+00:00

commit dd8df17fe83483d7ea06ff229895e35a42071599 upstream.

This patch fixes a failure to recognize SD cards reported on a Dell
Vostro with O2 Micro SD card reader.  Patch 49c468f ("mmc: sd: add
support for uhs bus speed mode selection") caused the problem, by
setting the SDHCI_CTRL_HISPD flag even for legacy timings.

Signed-off-by: Alexander Elbs 
Acked-by: Philip Rakity 
Acked-by: Arindam Nath 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

mmc: sdhci: Fix tuning timer incorrect setting when suspending host

2012-01-26T01:24:46+00:00

commit c6ced0db08010ed75df221a2946c5228454b38d5 upstream.

When suspending host, the tuning timer shoule be deactivated.
And the HOST_NEEDS_TUNING flag should be set after tuning timer is
deactivated.

Signed-off-by: Philip Rakity 
Signed-off-by: Aaron Lu 
Acked-by: Adrian Hunter 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman

mmc: core: Fix voltage select in DDR mode

2012-01-26T01:24:45+00:00

commit 913047e9e5787a90696533a9f109552b7694ecc9 upstream.

This patch fixes the wrong comparison before setting the interface
voltage in DDR mode.

The assignment to the variable ddr before comaprison is either
ddr = MMC_1_2V_DDR_MODE; or ddr == MMC_1_8V_DDR_MODE. But the comparison
is done with the extended csd value if ddr == EXT_CSD_CARD_TYPE_DDR_1_2V.

Signed-off-by: Girish K S 
Acked-by: Subhash Jadavani 
Acked-by: Philip Rakity 
Signed-off-by: Chris Ball 
Signed-off-by: Greg Kroah-Hartman