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path: root/drivers/mmc
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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>
2018-01-12mmc: Add a new callback function to perform the 74 clocks cycle sequenceJean-Jacques Hiblot
Add a new callback function *send_init_stream* which start a sequence of at least 74 clock cycles. The mmc core uses *mmc_send_init_stream* in order to invoke the callback function. This will be used during power cycle where the specification requires such a sequence after power up. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: Enable signal voltage to be selected from mmc coreKishon Vijay Abraham I
Add a new function *mmc_set_signal_voltage* in mmc core which can be used during mmc initialization to select the signal voltage. Platform driver should use the set_ios callback function to select the signal voltage. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: make mmc_set_ios() return statusKishon Vijay Abraham I
set_ios callback has a return value of 'int' but the mmc_set_ios() function ignore this. Modify mmc_set_ios() and the callers of mmc_set_ios() to to return the error status. 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: refactor MMC startup to make it easier to support new modesJean-Jacques Hiblot
The MMC startup process currently handles 4 modes. To make it easier to add support for more modes, let's make the process more generic and use a list of the modes to try. The major functional change is that when a mode fails we try the next one. Not all modes are tried, only those supported by the card and the host. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12mmc: refactor SD startup to make it easier to support new modesJean-Jacques Hiblot
The SDcard startup process currently handles only 2 modes. To make it easier to add support for more modes, let's make the process more generic and use a list of the modes to try. The major functional change is that when a mode fails we try the next one. Not all modes are tried, only those supported by the card and the host. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12mmc: use mmc modes to select the correct bus speedJean-Jacques Hiblot
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12mmc: Add a function to dump the mmc capabilitiesJean-Jacques Hiblot
This adds a simple helper function to display information (bus width and mode) based on a capability mask. Useful for debug. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: introduce mmc modesJean-Jacques Hiblot
no functionnal changes. In order to add the support for the high speed SD and MMC modes, it is useful to track this information. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12mmc: add a function to read and test the ext csd (mmc >= 4)Jean-Jacques Hiblot
This will be reused later in the selection of high speed and ddr modes. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12mmc: make ext_csd part of struct mmcJean-Jacques Hiblot
The ext csd is used for comparison many times. Keep a reference content of the ext csd in the struct mmc to avoid reading multiple times Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12mmc: move the MMC startup for version above v4.0 in a separate functionJean-Jacques Hiblot
no functionnal change. This is only to further reduce the size o mmc_startup(). Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12mmc: split mmc_startup()Jean-Jacques Hiblot
No functionnal change here. The function is really big and can be split. The part related to bus configuration are put in 2 separate functions: one for MMC and one for SD. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org>
2018-01-12mmc: dm: get the IO-line and main voltage regulators from the dtsJean-Jacques Hiblot
Get a reference to the regulator devices from the dts and store them in the struct mmc for later use. Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
2018-01-12mmc: sdhci: do not compare pointer to 0Heinrich Schuchardt
data is defined as struct mmc_data *data. So it should not be compared to 0. Problem identified with Coccinelle. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
2018-01-12mmc: sdhci: don't clear SDHCI_INT_STATUS register during CMD_INHIBITJorge Ramirez-Ortiz
Fixes emmc initialization regression on the db410c platform. Clearing this register while SDHCI_PRESENT_STATE reports SDHCI_CMD_INHIBIT leads to undefined behaviour on the db410c. When commit 7dde50 was merged (mmc: sdhci: Wait for SDHCI_INT_DATA_END when transferring), SDHCI transfers transitioned to wait for bit SDHCI_INT_DATA_END before flagging transfers done. Without this patch, the db410 platform fails to initialize its eMMC due to all of its transfers timing out (SDHCI_INT_DATA_END is never raised after all the blocks have been transferred). Signed-off-by: Jorge Ramirez-Ortiz <jorge.ramirez-ortiz@linaro.org>
2018-01-12mmc: sanitize includes for DM i2cFelix Brack
This patch fixes some warnings when building boards that do not define DM_I2C_COMPAT i.e. boards that entirely rely on the new i2c layer. Signed-off-by: Felix Brack <fb@ltec.ch>
2018-01-12drivers: mmc: Avoid memory leak in case of failureSuniel Mahesh
priv pointer should be freed before returning with an error value from exynos_dwmci_get_config(). Signed-off-by: Suniel Mahesh <sunil.m@techveda.org> Signed-off-by: Raghu Bharadwaj <raghu@techveda.org>
2018-01-12drivers: mmc: Change buffer type in ALLOC_CACHE_ALIGN_BUFFER macroSuniel Mahesh
__be32_to_cpu() accepts argument of type __be32. This patch changes type of the buffer in ALLOC_CACHE_ALIGN_BUFFER macro to __be32, which is then passed to __be32_to_cpu(). This prevents sparse build warnings. drivers/mmc/mmc.c: warning: cast to restricted __be32 Signed-off-by: Suniel Mahesh <sunil.m@techveda.org> Signed-off-by: Karthik Tummala <karthik@techveda.org>
2017-12-09mmc: uniphier-sd: Add R8A77995 D3 compatibleMarek Vasut
Add new compatible to the Uniphier SD driver for R8A77995 D3 SoC. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-12-09mmc: uniphier-sd: Add R8A77970 V3M compatibleMarek Vasut
Add new compatible to the Uniphier SD driver for R8A77970 V3M SoC. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
2017-11-29mmc: atmel_sdhci: not on capabilities to set gck rateLudovic Desroches
The capabilities have default values which doesn't reflect the reality when it concerns the base clock and the mul value. Use a fixe rate for the gck. 240 MHz is an arbitrary choice, it is a multiple of the maximum SD clock frequency handle by the controller and it allows to get a 400 kHz clock for the card initialisation. Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com> Signed-off-by: Wenyou Yang <wenyou.yang@microchip.com>
2017-11-30nds32: ftsdc010: Fix SD detech fail on AE3XX.Rick Chen
AE3XX can not support SD high-speed mode. SW can work-around by removing HS capibility. Signed-off-by: Rick Chen <rick@andestech.com>
2017-11-30nds32: ftsdc010: fix wait status error coding.Rick Chen
Bit of DATA_END and DATA_CRC_OK shall be checked for returning pass or fail of a request. Signed-off-by: Rick Chen <rick@andestech.com>
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