0173055842cd1d9ed3984e70891c22dbf2f29372 |
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22-Aug-2014 |
Doug Anderson <dianders@chromium.org> |
mmc: dw_mmc: Support voltage changes For UHS cards we need the ability to switch voltages from 3.3V to 1.8V. Add support to the dw_mmc driver to handle this. Note that dw_mmc needs a little bit of extra code since the interface needs a special bit programmed to the CMD register while CMD11 is progressing. This means adding a few extra states to the state machine to track. Signed-off-by: Doug Anderson <dianders@chromium.org> Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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3a33a94ce27068c8fef63a4f9ab7cff1210e2a4e |
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05-Aug-2014 |
Sonny Rao <sonnyrao@chromium.org> |
mmc: dw_mmc: change to use recommended reset procedure This patch changes the fifo reset code to follow the reset procedure outlined in the documentation of Synopsys Mobile storage host databook. Signed-off-by: Sonny Rao <sonnyrao@chromium.org> Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com> Acked-by: Seungwon Jeon <tgih.jun@samsung.com> [sonnyrao: fix compile for !CONFIG_MMC_DW_IDMAC case] Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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9795a846e10b1a4a5675eb257348b88dfda68193 |
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03-Mar-2014 |
Jaehoon Chung <jh80.chung@samsung.com> |
mmc: dw_mmc: remove dw_mci_of_cd_gpio/wp_gpio() If mmc_of_parse() is used, dw_mci_of_get_cd_gpio/wp_gpio didn't need. Already implemented into mmc_of_parse(). Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <chris@printf.net>
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370aede6a18a41e01f2668108d847b598443fbc0 |
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25-Feb-2014 |
Felipe Balbi <balbi@ti.com> |
mmc: dw_mmc: fix possible build error Fix the following build errors: drivers/mmc/host/dw_mmc-k3.c: In function ‘dw_mci_k3_suspend’: drivers/mmc/host/dw_mmc-k3.c:58:2: error: implicit declaration of function ‘dw_mci_suspend’ [-Werror=implicit-function-declaration] ret = dw_mci_suspend(host); ^ drivers/mmc/host/dw_mmc-k3.c: In function ‘dw_mci_k3_resume’: drivers/mmc/host/dw_mmc-k3.c:76:2: error: implicit declaration of function ‘dw_mci_resume’ [-Werror=implicit-function-declaration] return dw_mci_resume(host); ^ drivers/mmc/host/dw_mmc-k3.c: At top level: drivers/mmc/host/dw_mmc-k3.c:53:12: warning: ‘dw_mci_k3_suspend’ defined but not used [-Wunused-function] static int dw_mci_k3_suspend(struct device *dev) ^ drivers/mmc/host/dw_mmc-k3.c:65:12: warning: ‘dw_mci_k3_resume’ defined but not used [-Wunused-function] static int dw_mci_k3_resume(struct device *dev) ^ Signed-off-by: Felipe Balbi <balbi@ti.com> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Chris Ball <chris@printf.net>
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5532ec5137f2cfd16c2edda217ad4660ce0d4f2f |
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25-Feb-2014 |
Sachin Kamat <sachin.kamat@linaro.org> |
mmc: dw_mmc: Add missing description Commit 0976f16d ("mmc: dw_mmc: add support tuning scheme") introduced the execute_tuning hook but did not add its description for kernel docs. Update the same. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Seungwon Jeon <tgih.jun@samsung.com> Signed-off-by: Chris Ball <chris@printf.net>
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f1d2736c815629f3b43d8eebf73a81b581438e65 |
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30-Aug-2013 |
Seungwon Jeon <tgih.jun@samsung.com> |
mmc: dw_mmc: control card read threshold Card Read Threshold should be ensured that the card clock does not stop in the middle of a block of data being transferred from the card to the Host. Specially, clock stop is allowed in fast transfer such as HS200 or SDR104 mode. And so, it should be enabled. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Tested-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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524268990e54dab9bd71a984b70c13ce0eb1c525 |
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30-Aug-2013 |
Seungwon Jeon <tgih.jun@samsung.com> |
mmc: dw_mmc: adjust the fifoth with block size This change helps to choose msize, rx_watermark and tx_watermark depending on block size for IDMAC mode. For SDIO block size can be variable, so if these values are set incorrectly, card clock may stop. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Tested-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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0976f16d2d7fdd3d33738c1f64b83cde6f783db3 |
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30-Aug-2013 |
Seungwon Jeon <tgih.jun@samsung.com> |
mmc: dw_mmc: add support tuning scheme For the speed modes HS200 and SDR104, tuning is needed to determine the correct sampling point. Actual tuning procedure is provided by specific host controller driver. This patch defines the tuning command and tuning data. Additionally, 'struct dw_mci_slot' is moved to header file to consider the extensive usages in driver. Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com> Tested-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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eede2111c522264f6260e0a5fb742be31f725a99 |
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12-Jun-2013 |
Dinh Nguyen <dinguyen@altera.com> |
mmc: dw_mmc: Add support DW SD/MMC driver on SOCFPGA Add platform specific functionality for the DW SD/MMC driver for SoCFPGA. Move SDMMC_CMD_USE_HOLD_REG to dw_mmc.h so other platforms can use this define. Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Reviewed-by: Pavel Machek <pavel@denx.de> Acked-by: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Seungwon Jeon <tgih.jun@samsung.com Signed-off-by: Chris Ball <cjb@laptop.org>
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3f7eec62ecb7e30bd2f7e0fc4432d0d08a1aae46 |
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27-May-2013 |
Jaehoon Chung <jh80.chung@samsung.com> |
mmc: dw_mmc: change the macro name from DTO to DRTO At Interrupt status register, Bit9 is Data Read Timeout. But we used macro name as the DTO. It could be confused with the Data Transfer Over(DTO)-Bit[3]. It's clearly that is changed the DRTO instead of DTO. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Acked-by: Seungwon Jeon <tgih.jun@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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32d781a310785dcc86c41b6793b2bd4f41015d73 |
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11-Apr-2013 |
Thomas Abraham <thomas.abraham@linaro.org> |
mmc: dw_mmc: let device core setup the default pin configuration With device core now able to setup the default pin configuration, the pin configuration code based on the deprecated Samsung specific gpio bindings is removed. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Doug Anderson <dianders@chromium.org> Tested-by: Doug Anderson <dianders@chromium.org> Acked-by: Seungwon Jeon <tgih.jun@samsung.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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800d78bfccb3d38116abfda2a5b9c8afdbd5ea21 |
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17-Sep-2012 |
Thomas Abraham <thomas.abraham@linaro.org> |
mmc: dw_mmc: add support for implementation specific callbacks The core dw-mshc controller driver can let platform specific implementations of the dw-mshc controller to control the hardware as required by such implementations. This is acheived by invoking implementation specific (optional) callbacks. Define the list of callbacks supported the add invocation points for the same. Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org> Acked-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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62ca8034d940439490a450ae7e2b7702591e3192 |
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13-Jan-2012 |
Shashidhar Hiremath <shashidharh@vayavyalabs.com> |
mmc: Support of PCI mode in the dw_mmc driver Support of PCI mode for the dw_mmc driver. This Patch adds the support for the scenario where the Synopsys Designware IP is present on the PCI bus. The patch adds the minimal modifications necessary for the driver to work on PCI platform. Also added separate files for PCI and PLATFORM modes of operation. Signed-off-by: Shashidhar Hiremath <shashidharh@vayavyalabs.com> Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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ee5d19b20a711dca3848450979e3cd20b6b795cc |
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05-Jan-2012 |
Jaehoon Chung <jh80.chung@samsung.com> |
mmc: dw_mmc: fixed wrong bit operation for SDMMC_GET_FCNT() In status register, fifo_count is bit[29:17]. (0x1FFF is correct) Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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4e0a5adf46ee7810af2e1b7e4e8c2a298652618e |
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17-Oct-2011 |
Jaehoon Chung <jh80.chung@samsung.com> |
mmc: dw_mmc: modify DATA register offset In dw_mmc 2.40a spec, Data register's offset is changed. Before we used Data register offset 0x100. but if somebody uses a 2.40a controller, we must use 0x200 for Data register. This patch adds a version-id checking point and uses SDMMC_DATA(x) instead of SDMMC_DATA. It assumes 2.40a is the latest version. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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1a5c8e1f4f09e67118f81885a22ceb7bbd2df4ee |
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29-Aug-2011 |
Shashidhar Hiremath <shashidharh@vayavyalabs.com> |
mmc: dw_mmc: Support SDIO interrupts for all slots The Patch adds the support for SDIO interrupts for all slots. It includes enabling of SDIO interrupts through dw_mci_enable_sdio_irq and the handling of the slot specific interrupts in the Interrupt Service Routine. Signed-off-by: Shashidhar Hiremath <shashidharh@vayavyalabs.com> Acked-by: James Hogan <james.hogan@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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b86d825323b4c5d0c406e5b1a85af614acf0cf5a |
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24-Jun-2011 |
James Hogan <james.hogan@imgtec.com> |
mmc: dw_mmc: don't hard code fifo depth, fix usage The FIFO_DEPTH hardware configuration parameter can be found from the power-on value of RX_WMark in the FIFOTH register. This is used to initialise the watermarks, but when calculating the number of free fifo spaces a preprocessor definition is used which is hard coded to 32. Fix reading the value out of FIFOTH (the default value in the RX_WMark field is FIFO_DEPTH-1 not FIFO_DEPTH). Allow the fifo depth to be overriden by platform data (since a bootloader may have changed FIFOTH making auto-detection unreliable). Store the fifo_depth for later use. Also fix the calculation to find the number of free bytes in the fifo to include the fifo depth in the left shift by the data shift, since the fifo depth is measured in fifo items not bytes. Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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892b1e312b179139026e366a9d70065a7f897dbc |
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24-Jun-2011 |
James Hogan <james.hogan@imgtec.com> |
mmc: dw_mmc: brackets in register access macros Add brackets around use of the dev argument to the mci_{read,write}{w,l,q}() macros, for extra safety. Signed-off-by: James Hogan <james.hogan@imgtec.com> Acked-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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41babf753cc82ab6208903625a084bf305c32d06 |
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24-Feb-2011 |
Jaehoon Chung <jh80.chung@samsung.com> |
mmc: dw_mmc: support DDR mode This patch adds DDR mode support to dw_mmc. If we set any bit in UHS_REG bit[16:31], the card of that slot is supported for DDR mode. For example, if UHS_REG[16] is set, card number 0 is DDR mode. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Chris Ball <cjb@laptop.org>
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f95f3850f7a9e1d49ebc5b6e72e7cc3ec3685b0b |
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02-Jan-2011 |
Will Newton <will.newton@gmail.com> |
mmc: dw_mmc: Add Synopsys DesignWare mmc host driver. This adds the mmc host driver for the Synopsys DesignWare mmc host controller, found in a number of embedded SoC designs. Signed-off-by: Will Newton <will.newton@imgtec.com> Reviewed-by: Matt Fleming <matt@console-pimps.org> Reviewed-by: Chris Ball <cjb@laptop.org> Signed-off-by: Chris Ball <cjb@laptop.org>
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