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2013-10-30MIPS: db1235: Don't use MMC_CLKGATEUlf Hansson
As a first step in removing code for MMC_CLKGATE, MIPS db1235 defconfig which is the only current user, shall move away from this option. The mmc host drivers au1xmmc and jz4740_mmc, which are used on MIPS don't support clock gating through MMC_CLKGATE, thus removing the config option will have no effect on power save - clock gating wise. Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: core: Remove deprecated mmc_suspend|resume_host APIsUlf Hansson
The are no more users of the deprecated mmc_suspend|resume_host API, so let's remove it. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: mmci: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Russell King <linux@arm.linux.org.uk> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: via-sdmmc: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Bruce Chang <brucechang@via.com.tw> Cc: Harald Welte <HaraldWelte@viatech.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: tmio: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Cc: Ian Molton <ian@mnementh.co.uk> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: sh_mmcif: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: sdricoh_cs: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Sascha Sommer <saschasommer@freenet.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Sascha Sommer <saschasommer@freenet.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: rtsx: Remove redundant suspend and resume callbacksUlf Hansson
Suspend and resume of cards are handled by the protocol layer and consequently the mmc_suspend|resume_host APIs are marked as deprecated. While moving away from using the deprecated APIs, there are nothing left to be done for the suspend and resume callbacks, so remove them. Cc: Wei WANG <wei_wang@realsil.com.cn> Cc: Samuel Ortiz <sameo@linux.intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: wbsd: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Pierre Ossman <pierre@ossman.eu> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: pxamci: Remove redundant suspend and resume callbacksUlf Hansson
Suspend and resume of cards are handled by the protocol layer and consequently the mmc_suspend|resume_host APIs are marked as deprecated. While moving away from using the deprecated APIs, there are nothing left to be done for the suspend and resume callbacks, so remove them. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: s3cmci: Remove redundant suspend and resume callbacksUlf Hansson
Suspend and resume of cards are handled by the protocol layer and consequently the mmc_suspend|resume_host APIs are marked as deprecated. While moving away from using the deprecated APIs, there are nothing left to be done for the suspend and resume callbacks, so remove them. Cc: Ben Dooks <ben-linux@fluff.org> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: wmt-sdmmc: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Tony Prisk <linux@prisktech.co.nz> Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: mxcmmc: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Anatolij Gustschin <agust@denx.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: mxs-mmc: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Shawn Guo <shawn.guo@linaro.org> Cc: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: omap: Remove redundant suspend and resume callbacksUlf Hansson
Suspend and resume of cards are handled by the protocol layer and consequently the mmc_suspend|resume_host APIs are marked as deprecated. While moving away from using the deprecated APIs, there are nothing left to be done for the suspend and resume callbacks, so remove them. Cc: Jarkko Lavinen <jarkko.lavinen@nokia.com> Cc: linux-omap@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: tifm_sd: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Alex Dubov <oakad@yahoo.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: sdhci: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: vub300: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are handled by the protocol layer and consequently the mmc_suspend|resume_host APIs are marked as deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Tony Olech <tony.olech@elandigitalsystems.com> Cc: linux-usb@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: mvsdio: Remove redundant suspend and resume callbacksUlf Hansson
Suspend and resume of cards are handled by the protocol layer and consequently the mmc_suspend|resume_host APIs are marked as deprecated. While moving away from using the deprecated APIs, there are nothing left to be done for the suspend and resume callbacks, so remove them. Cc: Nicolas Pitre <nico@fluxnic.net> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: msm_sdcc: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Additionally, remove dead code which also used the deprecated APIs. Cc: David Brown <davidb@codeaurora.org> Cc: Daniel Walker <dwalker@fifo99.com> Cc: Bryan Huntsman <bryanh@codeaurora.org> Cc: linux-arm-msm@vger.kernel.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: David Brown <davidb@codeaurora.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: jz4740: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: dw_mmc: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Seungwon Jeon <tgih.jun@samsung.com> Cc: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: davinci_mmc: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Sekhar Nori <nsekhar@ti.com> Cc: Manjunathappa, Prakash <prakash.pm@ti.com> Cc: davinci-linux-open-source@linux.davincidsp.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: cb710: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: bfin_sdh: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Sonic Zhang <sonic.zhang@analog.com> Cc: uclinux-dist-devel@blackfin.uclinux.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: au1xmmc: Move away from using deprecated APIsUlf Hansson
Suspend and resume of cards are being handled from the protocol layer and consequently the mmc_suspend|resume_host APIs are deprecated. This means we can simplify the suspend|resume callbacks by removing the use of the deprecated APIs. Cc: Manuel Lauss <manuel.lauss@googlemail.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: atmel-mci: Remove redundant suspend and resume callbacksUlf Hansson
Suspend and resume of cards are handled by the protocol layer and consequently the mmc_suspend|resume_host APIs are marked as deprecated. While moving away from using the deprecated APIs, there are nothing left to be done for the suspend and resume callbacks, so remove them. Cc: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: core: Signal wakeup event at card insert/removalUlf Hansson
We want to give user space provision to fully consume a card insert/remove event, when the event was caused by a wakeup irq. By signaling the wakeup event for a time of 5 s for devices configured as wakeup capable, we likely will be prevent a sleep long enough to let user space consume the event. To enable this feature, host drivers must thus configure their devices as wakeup capable. This is a reworked implementation of the old wakelocks for the mmc subsystem, originally authored by Colin Cross and San Mehat for the Android kernel. Zoran Markovic shall also be given cred for recently re-trying to upstream this feature. Cc: San Mehat <san@google.com> Cc: Colin Cross <ccross@android.com> Cc: John Stultz <john.stultz@linaro.org> Cc: Zoran Markovic <zoran.markovic@linaro.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Zoran Markovic <zoran.markovic@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: core: Collect common code for card ocr validationUlf Hansson
Since mmc_select_voltage now only gets called from the attach sequence, it makes sense to move the out of spec validations of the card ocr into this function. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: core: Prevent violation of specs while initializing cardsUlf Hansson
According to eMMC/SD/SDIO specs, the VDD (VCC) voltage level must be maintained during the initialization sequence. If we want/need to tune the voltage level, a complete power cycle of the card must be executed. Most host drivers conforms to the specifications by only allowing to change VDD voltage level at the MMC_POWER_UP state, but some also cares about MMC_POWER_ON state, which they should'nt. This patch will not break those drivers, but they could clean up code to better reflect what is expected from the protocol layer. A big re-work of the mmc_select_voltage function is done to only change VDD voltage level if the host supports MMC_CAP2_FULL_PWR_CYCLE. Otherwise only validation of the host and card ocr mask will be done. A very nice side-effect of this patch is that we now don't need to reset the negotiated ocr mask at the mmc_power_off function, since now it will actually reflect the present voltage level, which safely can be used at the next power up and re-initialization. Moreover, we then only need to execute mmc_select_voltage from the attach sequence. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: core: Move cached value of the negotiated ocr mask to card structUlf Hansson
The negotiated ocr mask is directly related to the card. Once a card gets removed, the mask shall be dropped. By moving the cache of the ocr mask from the host struct to the card struct we have accomplished this. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: core: Cleanup code for setting ocr mask for SDIOUlf Hansson
At several places in mmc_sdio_init_card function the cached mask in host->ocr were being updated. To simplify code, we make use of an local ocr parameter instead. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: core: Remove unnecessary retry mechanism at SDIO attachUlf Hansson
The retry and fallback mechanism when failing to switch to 1.8V signaling voltage is handled by the SDIO card init function. Thus we can remove the duplicated old code from the attach function. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: core: Let mmc_set_signal_voltage take ocr as parameterUlf Hansson
This is yet another step of restructure code to be able to fixup the setup of the negotiated ocr mask. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: core: Let mmc_power_up|cycle take ocr as parameterUlf Hansson
As a step to fixup the setup of the negotiated ocr mask, we need the mmc_power_up|cycle functions to take the ocr as a parameter. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: core: Do not poll for busy with status cmd for all switch cmdsUlf Hansson
Some switch operations like poweroff notify, shall according to the spec not be followed by any other new commands. For these cases and when the host does'nt support MMC_CAP_WAIT_WHILE_BUSY, we must not send status commands to poll for busy detection. Instead wait for the stated timeout from the EXT_CSD before completing the request. Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Cc: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: sdhci-pci: Add SDIO/MMC device ID support for Intel ClovertrailEric Ernst
This patch adds intel_mid clovertrail SDIO and eMMC device IDs to the sdhci-pci driver. Signed-off-by: Eric Ernst <eric.ernst@linux.intel.com> Signed-off-by: David Cohen <david.a.cohen@linux.intel.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: omap_hsmmc: remove unused no_offBalaji T K
With lazy disable gone, no_off is not used any more in omap_hsmmc Signed-off-by: Balaji T K <balajitk@ti.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: omap_hsmmc: correct max value of clkdBalaji T K
clock divisor can take a max value of 1023. Update code so that card init can be handled at f_min even at higher IP clock frequencies from which clock to the card is derived. Signed-off-by: Balaji T K <balajitk@ti.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: omap_hsmmc: fix timeout for cmd and data soft resetJianpeng Ma
With HSMMC_HAS_UPDATED_RESET reset of cmd/data (SRC/SRD) can be to quick and can be missed resulting in wait for software timeout. With cpu_relax timeout can be long and unpredictable. Use udelay instead for timeout implementation. Reported-by: Yuzheng Ma <mayuzheng@kedacom.com> Tested-by: Yuzheng Ma <mayuzheng@kedacom.com> Reviewed-by: Hein Tibosch <hein_tibosch@yahoo.es> Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Signed-off-by: Balaji T K <balajitk@ti.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: omap_hsmmc: context save and restore for DTTony Lindgren
We want to get rid of the omap specific platform init code callbacks as they don't play nice with device tree. Convert the context loss check to be based on a register state detection instead. Cc: Andreas Fenkart <afenkart@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com> [add check for CON and HCTL in context save and restore function] Signed-off-by: Balaji T K <balajitk@ti.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-30mmc: omap_hsmmc: Fix pbias_disable for omap4Balaji T K
pbias_disable is set to protect the mmc pbias i/o cells in DT boot by preventing voltage switch. Currently pbias_disable is enabled only for omap3 and not for omap4 due to reg_offset difference of 0x100. Enable pbias_disable for omap4+ too by using res->start which does not include the reg_offset. Signed-off-by: Balaji T K <balajitk@ti.com> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-21mmc: sdhci: remove unneeded call when have preset value quirkDong Aisheng
Remove unneeded call of call sdhci_enable_preset_value when having SDHCI_QUIRK2_PRESET_VALUE_BROKEN. Signed-off-by: Dong Aisheng <b29396@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-21mmc: sdhci-esdhc-imx: add preset value quirk for mx6Dong Aisheng
The i.MX6 does not support preset value feature. Signed-off-by: Dong Aisheng <b29396@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-21mmc: sdhci-esdhc-imx: enable SDR50 tuning for imx6q/dlDong Aisheng
The imx6q/dl supports SDR50 tunning, enable it for a better timing on SDR50 mode. Signed-off-by: Dong Aisheng <b29396@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-21mmc: sdhci-esdhc-imx: add delay line setting supportDong Aisheng
The DLL(Delay Line) is newly added to assist in sampling read data. The DLL provides the ability to programmatically select a quantized delay (in fractions of the clock period) regardless of on-chip variations such as process, voltage and temperature (PVT). This patch adds a user interface to set slave delay line via device tree. It's usually used in high speed mode like mmc DDR mode when the signal quality is not good caused by board design, e.g. the signal path is too long. User can manually set delay line to find a suitable data sampling window for card to work properly. Signed-off-by: Dong Aisheng <b29396@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-21mmc: sdhci-esdhc-imx: add DDR mode support for mx6Dong Aisheng
When DDR mode is enabled, the initial pre_div should be 2. And the pre_div value should be changed accordingly from ... 02h) Base clock divided by 4 01h) Base clock divided by 2 00h) Base clock divided by 1 to .. 02h) Base clock divided by 8 01h) Base clock divided by 4 00h) Base clock divided by 2 Signed-off-by: Dong Aisheng <b29396@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-21mmc: sdhci: report error once the maximum tuning loops exhausted or timeoutDong Aisheng
The original code missed to report an error when the maximum tuning loops exhausted or timeout, it will cause the upper layer to wrongly think the tuning process is passed. Signed-off-by: Dong Aisheng <b29396@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-21mmc: sdhci-esdhc-imx: fix reading cap_1 register value for mx6slDong Aisheng
When reading CAP_1 register for mx6sl, ignore bit[0-15] as it stores CAP_2 register value which is new introduced in mx6sl. Without this fix, the max clock for mx6sl may not be correct since it's wrongly calculated by reading CAP_1 register. Signed-off-by: Dong Aisheng <b29396@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
2013-10-21mmc: sdhci-esdhc-imx: add std tuning support for mx6slDong Aisheng
The mx6sl supports standard sdhci tuning, then esdhc_executing_tuning is only needed for mx6q/dl. We introduce is_imx6_usdhc() and is_imx6sl_usdhc() to handle the difference. The standard tuning is enabled by setting ESDHC_TUNE_CTRL_STD_TUNING_EN bit in new register ESDHC_TUNE_CTRL and operates with new tuning bits defined in SDHCI_ACMD12_ERR register. Note: mx6sl can also work on the old manually tuning mode as mx6q/dl if not enable standard tuning mode. Signed-off-by: Dong Aisheng <b29396@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Chris Ball <cjb@laptop.org>
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