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path: root/drivers/mmc
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2018-01-28mmc: Add bcm2835 sdhost controllerAlexander Graf
The BCM2835 family of SoCs has 2 different SD controllers: One based on the SDHCI spec and a custom, home-grown one. This patch implements a driver for the latter based on the Linux driver. This is needed so that we can make use of device trees that assume driver presence of both SD controllers. Signed-off-by: Alexander Graf <agraf@suse.de>
2018-01-26Merge git://git.denx.de/u-boot-spiTom Rini
2018-01-24mmc: Poll for broken card detection caseJun Nie
Poll for broken card detection case instead of return no card detected. Signed-off-by: Jun Nie <jun.nie@linaro.org>
2018-01-24mmc: fix to assign to correct clock value when clock is enablingJaehoon Chung
When clock is enabling, it's assigned to 0 as mmc->clock. Then it can't initialize any card. Fix to assign to correct clock value as mmc->cfg->f_min or f_max. Fixes: 9546eb92cb6 ("mmc: fix the wrong disabling clock") Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Tested-by: Guillaume GARDET <guillaume.gardet@free.fr> Tested-by: Anand Moon <linux.amoon@gmail.com> Tested-by: Stephen Warren <swarren@nvidia.com>
2018-01-24wait_bit: use wait_for_bit_le32 and remove wait_for_bitÁlvaro Fernández Rojas
wait_for_bit callers use the 32 bit LE version Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Jagan Teki <jagan@openedev.com>
2018-01-22mmc: fsl_esdhc: Fix i.MX53 eSDHCv3 clockBenoît Thébaudeau
Commit 4f425280fa71 ("mmc: fsl_esdhc: Allow all supported prescaler values") made it possible to set SYSCTL.SDCLKFS to 0 in SDR mode on i.MX, thus bypassing the SD clock frequency prescaler, in order to be able to get higher SD clock frequencies in some contexts. However, that commit missed the fact that this value is illegal on the eSDHCv3 instance of the i.MX53. This seems to be the only exception on i.MX, this value being legal even for the eSDHCv2 instances of the i.MX53. Fix this issue by changing the minimum prescaler value for the single instance of the i.MX53 eSDHCv3 controller. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau.dev@gmail.com> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
2018-01-22mmc: fix the wrong disabling clockJaehoon Chung
When power is off, clock is not disabling. Because it's passed to 1, mmc->clock should be set to f_min value. Some drivers can't initialize the eMMC/SD card with current status. This patch is to fix the disabling clock value to 0. Fixes: 2e7410d76ad1 ("mmc: disable the mmc clock during power off") Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com> Reviewed-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Tested-by: Guillaume GARDET <guillaume.gardet@free.fr> Tested-by: Anand Moon <linux.amoon@gmail.com>
2018-01-22mmc: sdhci: change data transfer failure into debug messageMasahiro Yamada
During the tuning, drivers repeat data transfer, changing timing parameters in the controller hardware. So, the tuning commands (CMD19 for SD, CMD21 for eMMC) fail, and this is not a problem at all. Showing "Error detected..." in normal operation just make users upset. This should not be shown. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-22mmc: sdhci-cadence: add HS200 supportMasahiro Yamada
Add HS200 timing setting and the MMC tuning callback. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2018-01-22mmc: sdhci-cadence: call mmc_of_parse()Masahiro Yamada
This is needed to parse more capabilities such as mmc-hs200-1_8v. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-22mmc: sdhci-cadence: use bitfield access macros for cleanupMasahiro Yamada
This driver is a counterpart from the one in Linux. Follow the clean-up I did in Linux. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-22mmc: sdhci: do not overwrite host_caps in sdhci_setup_cfg()Masahiro Yamada
This line overwrites host_cap that has been set by drivers and/or helpers like mmc_of_parse(). Accumulate capabilities flags. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-22mmc: let mmc_of_parse() fail for insane bus-width valueMasahiro Yamada
You must fix your DT if it specifies insane bus-width, for example, bus-width = <3>; debug() is not displayed in usual configuration, so people will not even notice weirdness. Use dev_err() instead, then let it fail. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-22mmc: do not overwrite cfg->f_max if "max-frequency" if missingMasahiro Yamada
mmc_of_parse() in U-Boot is a pussy helper; it sets cfg->f_max to 52MHz even if DT does not provide "max-frequency" at all. This can overwrite cfg->f_max that may have been set to a reasonable default. As the DT binding says, "max-frequency" is an optional property. Do nothing if DT does not specify it. This is the behavior of mmc_of_parse() in Linux. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2018-01-19mmc: omap_hsmmc: Fix incorrect bit operations for disabling a bitKishon Vijay Abraham I
omap_hsmmc driver uses "|" in a couple of places for disabling a bit. While it's okay to use it in "mmc_reg_out" (since mmc_reg_out has a _mask_ argument to take care of resetting a bit), it's incorrectly used for resetting flags in "omap_hsmmc_send_cmd". Fix it here by using "&= ~()" to reset a bit. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-01-19mmc: omap_hsmmc: Enable Auto command (CMD12) enableKishon Vijay Abraham I
Instead of sending STOP TRANSMISSION command from MMC core, enable the auto command feature so that the Host Controller issues CMD12 automatically when last block transfer is completed. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-01-19mmc: omap_hsmmc: Add support for DMA (ADMA2)Kishon Vijay Abraham I
The omap hsmmc host controller can have the ADMA2 feature. It brings better read and write throughput. On most SOC, the capability is read from the hl_hwinfo register. On OMAP3, DMA support is compiled out. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-01-18Revert "omap_hsmmc: update struct hsmmc to accommodate omap3 from DT"Jean-Jacques Hiblot
This reverts commit 46831c1a4cda75d92f7ad18d4e2b1eb196c62b2f. This reserved area at the beginning of struct hsmm, will be used later to support ADMA Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-01-13mmc: fsl_esdhc: Fix eMMC 1.8v setting issuePeng Fan
Current USDHC driver will reset VSELECT to 0 (3.3v) during mmc init, then set to 1 for 1.8v eMMC I/O. When booting from eMMC, since ROM has already set VSELECT to 1.8v before running the u-boot. This reset in USDHC driver causes a short 2.2v pulse on CMD pin. Fix this issue by not reset VSELECT to 0 when 1.8v flag is set. Signed-off-by: Ye Li <ye.li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>
2018-01-12mmc: remove hc_wp_grp_size from struct mmc if not neededJean-Jacques Hiblot
hc_wp_grp_size is needed only if hardware partitionning is used. On ARM removing it saves about 30 bytes of code space. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: don't read the size of eMMC enhanced user data area in SPLJean-Jacques Hiblot
This information is only used by the "mmc info" command. On ARM removing this information from SPL saves about 140 of code space. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: compile out erase and write mmc commands if write operations are not ↵Jean-Jacques Hiblot
enabled Also remove erase_grp_size and write_bl_len from struct mmc as they are not used anymore. On ARM, removing them saves about 100 bytes of code space in SPL. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: read ssr only if MMC write support is enabledJean-Jacques Hiblot
The content of ssr is useful only for erase operations. on ARM, removing sd_read_ssr() saves around 300 bytes. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: add a Kconfig option to enable the support for MMC write operationsJean-Jacques Hiblot
This allows using CONFIG_IS_ENABLED(MMC_WRITE) to compile out code needed only if write support is required. The option is added for u-boot and for SPL Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: reworked version lookup in mmc_startup_v4Jean-Jacques Hiblot
Using a table versus a switch() structure saves a bit of space Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: compile out more code if support for UHS and HS200 is not enabledJean-Jacques Hiblot
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: atmel: when sending a data command, use the provided block sizeJean-Jacques Hiblot
struct mmc_data contains the block size to use for the data transfer. Use this information instead of using the default value or the block length information stored in struct mmc. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12dm: mmc: sandbox: Update SD card emulationJean-Jacques Hiblot
The SDcard initialization procedure does a few more things than it did earlier: * switch the bus width even for 1-bit bus width * check that speed has been properly set (in resp[4] of SD_CMD_SWITCH_FUNC) Update the SD simulator to handle those requests gracefully. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
2018-01-12mmc: make optional the support for eMMC hardware partitioningJean-Jacques Hiblot
Not all boards have an eMMC and not all users have a need for this. Allow to compile it out. By default it is still included. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: make UHS and HS200 optionalJean-Jacques Hiblot
Supporting USH and HS200 increases the code size as it brings in IO voltage control, tuning and fatter data structures. Use Kconfig configuration to select which of those features should be built in. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: convert most of printf() to pr_err() and pr_warn()Jean-Jacques Hiblot
This allows to compile out the log message by tweaking the LOGLEVEL. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2018-01-12mmc: don't use malloc_cache_aligned()Jean-Jacques Hiblot
Not using this function reduces the size of the binary. It's replaces by a standard malloc() and the alignment requirement is handled by an intermediate buffer on the stack. Also make sure that the allocated buffer is freed in case of error. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: fix for old MMCs (below version 4)Jean-Jacques Hiblot
The ext_csd is allocated only for MMC above version 4. The compare will crash or fail for older MMCs. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: all hosts support 1-bit bus width and legacy timingsJean-Jacques Hiblot
Make sure that those basic capabilities are advertised by the host. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12mmc: Fixed a problem with old sd or mmc that do not support High speedJean-Jacques Hiblot
As the legacy modes were not added to the list of supported modes, old cards that do not support other modes could not be used. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Lukasz Majewski <lukma@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12dm: mmc: update mmc_of_parse()Jean-Jacques Hiblot
* convert to livetree API * don't fail because of an invalid bus-width, instead default to 1-bit. * recognize 1.2v DDR and 1.2v HS200 flags Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: dump card and host capabilities if debug is enabledJean-Jacques Hiblot
This is a useful information while debugging the initialization process or performance issues. Also dump this information with the other mmc info if the verbose option is selected Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: meson_gx_mmc: fix the complie errorJaehoon Chung
mmc_set_clock() is changed. This patch is for fixing complie error. Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
2018-01-12dm: mmc: Add a library function to parse generic dt bindingKishon Vijay Abraham I
Add a new function to parse host controller dt node and set mmc_config. This function can be used by mmc controller drivers to set the generic mmc_config. This function can be extended to set other UHS mode caps once UHS mode support is added. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: add a library function to send tuning commandJean-Jacques Hiblot
HS200/SDR104 requires tuning command to be sent to the card. Add a simple function to send tuning command and to read and compare the received data with the tuning block pattern. This function can be used by platform driver to perform DLL tuning. This patch is similar to commit 996903de92f0 ("mmc: core: add core-level function for sending tuning commands") added in linux kernel. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: use the right voltage level for MMC DDR and HS200 modesJean-Jacques Hiblot
HS200 only supports 1.2v and 1.8v signal voltages. DDR52 supports 3.3v/1.8v or 1.2v signal voltages. Select the lowest voltage available when using those modes. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: Retry some MMC cmds on failureKishon Vijay Abraham I
With certain SD cards like Kingston 8GB/16GB UHS card, it is seen that MMC_CMD_ALL_SEND_CID cmd fails on first attempt, but succeeds subsequently. Therefore, retry MMC_CMD_ALL_SEND_CID cmd a few time as done in Linux kernel. Similarly, it is seen that MMC_CMD_SET_BLOCKLEN may fail on first attempt, therefore retry this cmd a few times as done in kernel. To make it clear that those are optionnal workarounds, a new Kconfig option 'MMC_QUIRKS' is added (enabled by default). Signed-off-by: Vignesh R <vigneshr@ti.com> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: Change mode when switching to a boot partitionJean-Jacques Hiblot
Boot partitions do not support HS200. Changing to a lower performance mode is required to access them. mmc_select_mode_and_width() and sd_select_mode_and_width() are modified to make it easier to call them outside of the initialization context. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12mmc: disable UHS modes if Vcc cannot be switched on and offJean-Jacques Hiblot
If a power cycle cannot be done on Vcc, it is safer not to try the UHS modes because we wouldn't be able to recover from an error occurring during the UHS initialization. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: Add support for UHS modesJean-Jacques Hiblot
Add UHS modes to the list of supported modes, get the UHS capabilites of the SDcard and implement the procedure to switch the voltage (UHS modes use 1v8 IO lines) During the voltage switch procedure, DAT0 is used by the card to signal when it's ready. The optional card_busy() callback can be used to get this information from the host driver. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12mmc: add HS200 support in MMC coreKishon Vijay Abraham I
Add HS200 to the list of supported modes and introduce tuning in the MMC startup process. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12mmc: Add a execute_tuning() callback to the mmc operations.Kishon Vijay Abraham I
Tuning is a mandatory step in the initialization of SDR104 and HS200 modes. This callback execute the tuning process. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: disable the mmc clock during power offKishon Vijay Abraham I
There is no point in having the mmc clock enabled during power off. Disable the mmc clock. This is similar to how it's programmed in Linux Kernel. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Vignesh R <vigneshr@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12mmc: add a new mmc parameter to disable mmc clockKishon Vijay Abraham I
mmc clock has to be disabled in certain cases like during the voltage switch sequence. Modify mmc_set_clock function to take disable as an argument that signifies if the clock has to be enabled or disabled. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: add power cyle support in mmc coreKishon Vijay Abraham I
mmc/sd specification requires vdd to be disabled for 1 ms and then enabled again during power cycle. Add a function in mmc core to perform power cycle and set the io signal to it's initial state. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
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