- 23 7月, 2012 1 次提交
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由 Shawn Guo 提交于
If bootloader or platform initialization code does not enable the power supply to mmc slot, we need to do it in mmc driver. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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- 06 6月, 2012 1 次提交
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由 Marek Vasut 提交于
Signed-off-by: NMarek Vasut <marex@denx.de> Acked-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NChris Ball <cjb@laptop.org>
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- 13 5月, 2012 8 次提交
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由 Shawn Guo 提交于
It adds device tree probe support for mxs-mmc driver. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NChris Ball <cjb@laptop.org>
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由 Shawn Guo 提交于
Copy wp_gpio from platform_data into struct mxs_mmc_host, so that the use of platform_data can be limited in probe function, which will ease the device tree probe. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NMarek Vasut <marex@denx.de> Acked-by: NChris Ball <cjb@laptop.org>
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由 Shawn Guo 提交于
It replaces dma_res with dma_channel in struct mxs_mmc_host, so that the device tree support will be a little easier, since dma channel can not be retrieved from "struct resource *dma_res". Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NMarek Vasut <marex@denx.de> Acked-by: NChris Ball <cjb@laptop.org>
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由 Shawn Guo 提交于
Use devm_request_and_ioremap and devm_request_irq helpers to clean up the code a little bit. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NMarek Vasut <marex@denx.de> Acked-by: NChris Ball <cjb@laptop.org>
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由 Shawn Guo 提交于
Rename arch/arm/mach-mxs/include/mach/mmc.h to include/linux/mmc/mxs-mmc.h, so that mxs-mmc driver becomes <mach/*> inclusion free. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NMarek Vasut <marex@denx.de> Acked-by: NChris Ball <cjb@laptop.org>
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由 Shawn Guo 提交于
The register HW_SSP_VERSION is broken for ssp version detection, as the address of the register is different between imx23 and imx28. Let's use platform_device_id to detect the device, so that the use of cpu_is_xxx can be removed. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NChris Ball <cjb@laptop.org>
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由 Shawn Guo 提交于
Let macro ssp_is_old take host as parameter to make the code easy to read. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NChris Ball <cjb@laptop.org>
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由 Shawn Guo 提交于
Use global stmp_device functionality to reduce mach-dependency. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NMarek Vasut <marex@denx.de> Acked-by: NChris Ball <cjb@laptop.org>
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- 12 5月, 2012 1 次提交
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由 Shawn Guo 提交于
Cc: linux-mmc@vger.kernel.org Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NChris Ball <cjb@laptop.org>
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- 20 4月, 2012 1 次提交
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由 Shawn Guo 提交于
Enable channel in device_issue_pending call, so that the order between cookie assignment and channel enabling can be ensured naturally. It fixes the mxs gpmi-nand breakage which is caused by the incorrect order of cookie assigning and channel enabling. Suggested-by: NRussell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Tested-by: NHuang Shijie <b32955@freescale.com> Tested-by <samgandhi9@gmail.com> Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
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- 27 3月, 2012 2 次提交
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由 Huang Shijie 提交于
[1] Background : The GPMI does ECC read page operation with a DMA chain consist of three DMA Command Structures. The middle one of the chain is used to enable the BCH, and read out the NAND page. The WAIT4END(wait for command end) is a comunication signal between the GPMI and MXS-DMA. [2] The current DMA code sets the WAIT4END bit at the last one, such as: +-----+ +-----+ +-----+ | cmd | ------------> | cmd | ------------------> | cmd | +-----+ +-----+ +-----+ ^ | | set WAIT4END here This chain works fine in the mx23/mx28. [3] But in the new GPMI version (used in MX50/MX60), the WAIT4END bit should be set not only at the last DMA Command Structure, but also at the middle one, such as: +-----+ +-----+ +-----+ | cmd | ------------> | cmd | ------------------> | cmd | +-----+ +-----+ +-----+ ^ ^ | | | | set WAIT4END here too set WAIT4END here If we do not set WAIT4END, the BCH maybe stalls in "ECC reading page" state. In the next ECC write page operation, a DMA-timeout occurs. This has been catched in the MX6Q board. [4] In order to fix the bug, rewrite the last parameter of mxs_dma_prep_slave_sg(), and use the dma_ctrl_flags: --------------------------------------------------------- DMA_PREP_INTERRUPT : append a new DMA Command Structrue. DMA_CTRL_ACK : set the WAIT4END bit for this DMA Command Structure. --------------------------------------------------------- [5] changes to the relative drivers: <1> For mxs-mmc driver, just use the new flags, do not change any logic. <2> For gpmi-nand driver, and use the new flags to set the DMA chain, especially for ecc read page. Acked-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NHuang Shijie <b32955@freescale.com> Acked-by: NVinod Koul <vinod.koul@linux.intel.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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由 Huang Shijie 提交于
Move the header to a more common place. The mxs dma engine is not only used in mx23/mx28, but also used in mx50/mx6q. It will also be used in the future chips. Rename it to mxs-dma.h, and create a new folder include/linux/fsl/ to store the Freescale's header files. change mxs-dma driver, mxs-mmc driver, gpmi-nand driver, mxs-saif driver to the new header file. Acked-by: NShawn Guo <shawn.guo@linaro.org> Acked-by: NMark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: NHuang Shijie <b32955@freescale.com> Acked-by: NVinod Koul <vinod.koul@linux.intel.com> Acked-by: NChris Ball <cjb@laptop.org> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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- 21 3月, 2012 1 次提交
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由 Alexandre Bounine 提交于
Add inline wrappers for device_prep_slave_sg() and device_prep_dma_cyclic() interfaces to hide new parameter from current users of affected interfaces. Convert current users to use new wrappers instead of direct calls. Suggested by Russell King [https://lkml.org/lkml/2012/2/3/269]. Signed-off-by: NAlexandre Bounine <alexandre.bounine@idt.com> Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
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- 12 1月, 2012 1 次提交
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由 Axel Lin 提交于
This patch converts the drivers in drivers/mmc/host/* to use the module_platform_driver() macro which makes the code smaller and a bit simpler. Signed-off-by: NAxel Lin <axel.lin@gmail.com> Acked-by: N"Michał Mirosław" <mirq-linux@rere.qmqm.pl> Acked-by: NDavid Brown <davidb@codeaurora.org> Acked-by: NViresh Kumar <viresh.kumar@st.com> Acked-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: NSascha Hauer <s.hauer@pengutronix.de> Acked-by: NWolfram Sang <w.sang@pengutronix.de> Acked-by: NAnton Vorontsov <cbouatmailru@gmail.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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- 28 12月, 2011 1 次提交
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由 Shawn Guo 提交于
The patch converts mxs-mmc driver to clk_prepare/clk_unprepare by using helper functions clk_prepare_enable/clk_disable_unprepare. Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Cc: Chris Ball <cjb@laptop.org> Acked-by: NMarek Vasut <marek.vasut@gmail.com>
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- 24 12月, 2011 1 次提交
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由 Shawn Guo 提交于
The commit 05f5799c (mmc-host: move to dma_transfer_direction) left out the DMA_NONE, in turn breaks the driver as below. [ 0.650000] mxs-mmc mxs-mmc.0: initialized [ 0.650000] mxs-mmc mxs-mmc.1: initialized [ 0.690000] mxs-dma mxs-dma-apbh: maximum bytes for sg entry exceeded: -55906 7475 > 65280 [ 0.690000] mxs-mmc mxs-mmc.0: mxs_mmc_ac: failed to prep dma Signed-off-by: NShawn Guo <shawn.guo@linaro.org> Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
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- 31 10月, 2011 1 次提交
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由 Vinod Koul 提交于
fixup usage of dma direction by introducing dma_transfer_direction, this patch moves mmc drivers to use new enum Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Chris Ball <cjb@laptop.org> Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Acked-by: NNicolas Ferre <nicolas.ferre@atmel.com> Acked-by: NGuennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: NVinod Koul <vinod.koul@linux.intel.com>
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- 27 10月, 2011 1 次提交
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由 Paul Gortmaker 提交于
We are cleaning up the implicit presence of module.h; these guys are some of the people who just assume it will be there. Call it out explitly for those that really need it. Signed-off-by: NPaul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: NChris Ball <cjb@laptop.org>
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- 21 7月, 2011 1 次提交
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由 Koen Beel 提交于
Fix clock rate setting in the mxs-mmc driver. Previously, if div2 was 0 then the value for TIMING_CLOCK_RATE would have been 255 instead of 0. The limits for div1 (TIMING_CLOCK_DIVIDE) and div2 (TIMING_CLOCK_RATE+1) were also not correctly defined. Can easily be reproduced on mx23evk: default clock for high speed sdio cards is 50 MHz. With a SSP_CLK of 28.8 MHz default), this resulted in an actual clock rate of about 56 kHz. Tested on mx23evk. Signed-off-by: NKoen Beel <koen.beel@barco.com> Reviewed-by: NWolfram Sang <w.sang@pengutronix.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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- 16 3月, 2011 1 次提交
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由 Shawn Guo 提交于
This adds the mmc host driver for Freescale MXS-based SoC i.MX23/28. The driver calls into mxs-dma via generic dmaengine api for both pio and data transfer. Thanks Chris Ball for the indentation patch. Signed-off-by: NShawn Guo <shawn.guo@freescale.com> Reviewed-by: NArnd Bergmann <arnd@arndb.de> Tested-by: NWolfram Sang <w.sang@pengutronix.de> Signed-off-by: NChris Ball <cjb@laptop.org>
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