linux-toradex.git/drivers/mmc, branch colibri Linux kernel for Apalis and Colibri modules mmc: card: retry if transfer aborted due to out of range 2014-07-21T12:26:21+00:00 Stefan Agner stefan.agner@toradex.com 2014-06-24T11:57:21+00:00 bdf9e11d339ebc121e80e7ecdd44e0abcaf4ff38 This works around a issue we see when using eMMC 4.5 on tegra SDHCI host controller. 
This works around a issue we see when using eMMC 4.5 on tegra
SDHCI host controller.
mmc: tegra: use 1.8V quirk only on affected instances 2014-07-21T12:26:21+00:00 Stefan Agner stefan.agner@toradex.com 2014-06-24T11:47:49+00:00 29b19ff42a7d4c609f824c13ca139eef7332ff1f The 1.8V quirk also affected the internal eMMC which disabled newer modes such as SDR50, SDR104 and DDR50. This in turn lead to an out of spec usage since the clock was still 50MHz. By creating a no_1v8 field in the platform data we can now enable this work around on a per-instance basis. Hence we enable the quirk only on the controllers which are connected to the external SD-slots. 
The 1.8V quirk also affected the internal eMMC which disabled newer
modes such as SDR50, SDR104 and DDR50. This in turn lead to an
out of spec usage since the clock was still 50MHz.

By creating a no_1v8 field in the platform data we can now enable
this work around on a per-instance basis. Hence we enable the
quirk only on the controllers which are connected to the external
SD-slots.
colibri_t20: mmc: sdhci: fix build 2013-04-23T10:20:42+00:00 Marcel Ziswiler marcel.ziswiler@toradex.com 2013-04-23T10:20:42+00:00 64898e54084445317383ecbe125dc14c0ee729d0 Fix the following build issue introduced by commit 5cfcbc23d116927a7ae8d5b67baeacf2905b21f9 if neither CONFIG_MACH_APALIS_T30 nor CONFIG_MACH_COLIBRI_T30 is defined as in case of e.g. the Colibri T20: drivers/mmc/host/sdhci-tegra.c:951:2: error: expected expression before '.' token 
Fix the following build issue introduced by commit
5cfcbc23d116927a7ae8d5b67baeacf2905b21f9 if neither
CONFIG_MACH_APALIS_T30 nor CONFIG_MACH_COLIBRI_T30 is defined as in
case of e.g. the Colibri T20:

drivers/mmc/host/sdhci-tegra.c:951:2:
 error: expected expression before '.' token
apalis/colibri_t30: mmc: sdhci: hack to make newer cards work 2013-04-18T12:15:11+00:00 Marcel Ziswiler marcel.ziswiler@toradex.com 2013-04-18T12:15:11+00:00 5cfcbc23d116927a7ae8d5b67baeacf2905b21f9 SDR12, SDR25, SDR50, SDR104 and DDR50 all require 1.8V signalling which our current T30 designs can't do. Newer cards will fail as follows: Kingston 32GB microSDHC class 10 [ 69.000280] mmc1: error -84 whilst initialising SD card SanDisk Mobile Ultra 8GB microSDHC I [ 28.289174] mmc1: error -110 whilst initialising SD card This patch activates a quirk which signals our lack of 1.8V support. 
SDR12, SDR25, SDR50, SDR104 and DDR50 all require 1.8V signalling which
our current T30 designs can't do. Newer cards will fail as follows:

Kingston 32GB microSDHC class 10
[   69.000280] mmc1: error -84 whilst initialising SD card

SanDisk Mobile Ultra 8GB microSDHC I
[   28.289174] mmc1: error -110 whilst initialising SD card

This patch activates a quirk which signals our lack of 1.8V support.
mmc: sdhci: add quirk for lack of 1.8v support 2013-04-18T12:01:32+00:00 Daniel Drake dsd@laptop.org 2012-11-25T18:01:19+00:00 e892379bb58aed6db12e45d033f99f532055a1b4 The OLPC XO-1.75 laptop includes a SDHCI controller which is 1.8v capable, and it truthfully reports so in its capabilities. This alternate voltage is used for driving new "UHS-I" SD cards at their full speed. However, what the controller doesn't know is that the motherboard physically doesn't have a 1.8v supply available. Add a quirk so that systems such as this one can override disable 1.8v support, adding support for UHS-I cards (by running them at 3.3v). This avoids a problem where the system would first try to run the card at 1.8v, fail, and then not be able to fully reset the card to retry at the normal 3.3v voltage. This is more appropriate than using the MISSING_CAPS quirk, which is intended for cases where the SDHCI controller is actually lying about its capabilities, and would force us to somehow override both caps words from another source. Signed-off-by: Daniel Drake <dsd@laptop.org> Reviewed-by: Philip Rakity <prakity@nvidia.com> Signed-off-by: Chris Ball <cjb@laptop.org> 
The OLPC XO-1.75 laptop includes a SDHCI controller which is 1.8v
capable, and it truthfully reports so in its capabilities. This
alternate voltage is used for driving new "UHS-I" SD cards at their
full speed.

However, what the controller doesn't know is that the motherboard
physically doesn't have a 1.8v supply available.

Add a quirk so that systems such as this one can override disable
1.8v support, adding support for UHS-I cards (by running them at
3.3v).

This avoids a problem where the system would first try to run the
card at 1.8v, fail, and then not be able to fully reset the card
to retry at the normal 3.3v voltage.

This is more appropriate than using the MISSING_CAPS quirk, which
is intended for cases where the SDHCI controller is actually lying
about its capabilities, and would force us to somehow override both
caps words from another source.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Reviewed-by: Philip Rakity <prakity@nvidia.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Merge branch 'l4t/l4t-r16-r2' into colibri 2012-11-12T14:28:39+00:00 Marcel Ziswiler marcel.ziswiler@toradex.com 2012-11-12T14:28:39+00:00 f987e832a9e79d2ce8009a5ea9c7b677624b3b30 Conflicts: arch/arm/mach-tegra/tegra3_usb_phy.c arch/arm/mach-tegra/usb_phy.c drivers/usb/gadget/tegra_udc.c drivers/usb/otg/Makefile drivers/video/tegra/fb.c sound/soc/tegra/tegra_pcm.c 
Conflicts:
	arch/arm/mach-tegra/tegra3_usb_phy.c
	arch/arm/mach-tegra/usb_phy.c
	drivers/usb/gadget/tegra_udc.c
	drivers/usb/otg/Makefile
	drivers/video/tegra/fb.c
	sound/soc/tegra/tegra_pcm.c
sdhci: colibri_t20: avoid warning messages hack 2012-11-12T00:31:15+00:00 Marcel Ziswiler marcel.ziswiler@toradex.com 2012-11-12T00:31:15+00:00 f737b7f46a72c099cf8ac88baff02fbf61b1a47c Hack to avoid extensive warning messages from Redpine Signals LiteFi driver due to unaligned DMA accesses. 
Hack to avoid extensive warning messages from Redpine Signals LiteFi
driver due to unaligned DMA accesses.
mmc: host: tegra: get rid of tegra_gpio_enable() 2012-08-02T02:11:35+00:00 Laxman Dewangan ldewangan@nvidia.com 2012-07-31T09:48:54+00:00 541c39246d27e039d2c0e6b84c6253c239cd8c03 The gpio mode of pin is configured when setting direction and hence this call is no more required. Change-Id: I2c9bce83a283f6ef45754075cf3b7b1bc5c1d9ac Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Reviewed-on: http://git-master/r/119612 Reviewed-by: Simone Willett <swillett@nvidia.com> Tested-by: Simone Willett <swillett@nvidia.com> 
The gpio mode of pin is configured when setting
direction and hence this call is no more required.

Change-Id: I2c9bce83a283f6ef45754075cf3b7b1bc5c1d9ac
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-on: http://git-master/r/119612
Reviewed-by: Simone Willett <swillett@nvidia.com>
Tested-by: Simone Willett <swillett@nvidia.com>
mmc: tegra: treat compilation warning as error 2012-08-02T01:08:40+00:00 schowdary schowdary@nvidia.com 2012-07-24T13:11:46+00:00 a6026ba7d591ac1a851b72ff6ed127c6f76d803a - Add compilation flag to treat warning as error - Modified sdhci-tegra.c to remove compile warning bug 949219 Change-Id: I704ea95e3b8ca8862482b6793b71ca4e5114f832 Signed-off-by: schowdary <schowdary@nvidia.com> Reviewed-on: http://git-master/r/118036 Reviewed-by: Simone Willett <swillett@nvidia.com> Tested-by: Simone Willett <swillett@nvidia.com> 
- Add compilation flag to treat warning as error
- Modified sdhci-tegra.c to remove compile warning

bug 949219

Change-Id: I704ea95e3b8ca8862482b6793b71ca4e5114f832
Signed-off-by: schowdary <schowdary@nvidia.com>
Reviewed-on: http://git-master/r/118036
Reviewed-by: Simone Willett <swillett@nvidia.com>
Tested-by: Simone Willett <swillett@nvidia.com>
Revert "mmc: host: Disable SDIO card clock when idle" 2012-07-31T15:55:49+00:00 Pavan Kunapuli pkunapuli@nvidia.com 2012-06-25T10:12:55+00:00 6308fd8ea1d7291835b3b689779a5b58ac0cf47a Without card clock, inband interrupt is not working on some wifi chips. Bug 981683 This reverts commit b31946b34507209f26c6d709e23fd1c0cedd25f8. Change-Id: I2dd86edb2445bd6db7917adf509b7a018d31aaed Reviewed-on: http://git-master/r/110839 Signed-off-by: Pavan Kunapuli <pkunapuli@nvidia.com> Change-Id: I6f2266ac5b6bd9585272958b4b8a89af1b3cdffb Reviewed-on: http://git-master/r/119009 Reviewed-by: Lokesh Pathak <lpathak@nvidia.com> Tested-by: Lokesh Pathak <lpathak@nvidia.com> 
Without card clock, inband interrupt is not working on
some wifi chips.

Bug 981683

This reverts commit b31946b34507209f26c6d709e23fd1c0cedd25f8.

Change-Id: I2dd86edb2445bd6db7917adf509b7a018d31aaed
Reviewed-on: http://git-master/r/110839

Signed-off-by: Pavan Kunapuli <pkunapuli@nvidia.com>
Change-Id: I6f2266ac5b6bd9585272958b4b8a89af1b3cdffb
Reviewed-on: http://git-master/r/119009
Reviewed-by: Lokesh Pathak <lpathak@nvidia.com>
Tested-by: Lokesh Pathak <lpathak@nvidia.com>