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path: root/drivers/mmc/am654_sdhci.c
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2020-05-18common: Drop linux/bitops.h from common headerSimon Glass
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-03-09mmc: am654_sdhci: Implement workaround for card detectFaiz Abbas
The 4 bit MMC controllers have an internal debounce for the SDCD line with a debounce delay of 1 second. Therefore, after clocks to the IP are enabled, software has to wait for this time before it can power on the controller. Add a deferred_probe() callback which polls on sdcd for a maximum of 2 seconds before switching on power to the controller or (in the case of no card) returning a ENOMEDIUM. This pushes the 1 second wait time to when the card is actually needed rather than at every probe() making sure that users who don't insert an SD card in the slot don't have to wait such a long time. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2020-03-09mmc: am654_sdhci: Update output tap delay writesFaiz Abbas
With the latest RIOT, there is a different otap delay value for each speed mode. Add a new binding with every supported speed mode. Also disable a given speed mode in the host caps if its corresponding otap-del-sel is not present. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2020-02-05dm: core: Create a new header file for 'compat' featuresSimon Glass
At present dm/device.h includes the linux-compatible features. This requires including linux/compat.h which in turn includes a lot of headers. One of these is malloc.h which we thus end up including in every file in U-Boot. Apart from the inefficiency of this, it is problematic for sandbox which needs to use the system malloc() in some files. Move the compatibility features into a separate header file. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-02-05dm: core: Require users of devres to include the headerSimon Glass
At present devres.h is included in all files that include dm.h but few make use of it. Also this pulls in linux/compat which adds several more headers. Drop the automatic inclusion and require files to include devres themselves. This provides a good indication of which files use devres. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Anatolij Gustschin <agust@denx.de>
2020-01-20mmc: am654_sdhci: Add Support for configuring PHY in J721eFaiz Abbas
Add Support for writing to PHY registers for J721e. There are number of differences between the J721e 8 bit PHY, J721e 4 bit PHY and AM654 PHY. Create a driver_data structure with an ops and flags field and use the flags field to indicate these differences. The differences are as follows: 1. The J721e 4 bit instance PHY does not have a DLL. Introduce a DLL_PRESENT flag to make sure that DLL related registers are accessed only where they are present. Also add a separate set_ios_post() callback. 2. The J721e 8 bit instance is not muxed with anything else inside the SoC and hence the IOMUX_ENABLE filed does not exist. Add a flag which is used to indicate the presence of this field. 3. The register field used to select DLL frequency is 3 bit wide in J721e as compared to 2 bits in AM65x. Add another flag that distinguishes these fields. 4. The strobe select field is 8 bit wide as compared to 4 bit wide for AM65x. Add yet another flag to indicate this difference. Strobe select is used only for HS400 speed mode, support for which has not been added in AM65x. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2020-01-20mmc: am654_sdhci: Get Xin clock by nameFaiz Abbas
Get clk_xin by name instead of by index to avoid having to put clocks in the same order in all devices. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2019-10-11mmc: am654_sdhci: Drop a redundant power_domain_on in probeLokesh Vutla
Power-domain is enabled by default in device_probe. am654 mmc driver is enabling power-domain again in probe. As the second call is redundant, drop power_domain_on from probe. Tested-by: Suman Anna <s-anna@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com> Reviewed-by: Peng Fan <peng.fan@nxp.com>
2019-07-26mmc: am654_sdhci: Separate J721E compatible into 8bit and 4bit versionsFaiz Abbas
The j721e 4 bit instances don't have a hard DLL and therefore don't need any DLL related configurations. Split the compatibles into an 8 bit and a 4 bit one. Add a private flags field which can be used to check if the DLL is present and don't register the set_ios_post callback for the 4 bit compatible instances. Also update the compatibles in k3-j721e-main.dtsi to avoid breaking boot with the new compatibles. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
2019-07-17mmc: am654_sdhci: Allow driver to probe without PDs specifiedAndreas Dannenberg
We would like to use the driver even without power domains being specified for cases such as during early boot when the required power domains have already gotten enabled by the SoC's boot ROM and such explicit initialization is not needed and possible. Signed-off-by: Andreas Dannenberg <dannenberg@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-07-17mmc: am654_sdhci: Add a platform specific set_control_reg() callbackFaiz Abbas
Add a platform specific set_control_reg() callback to help switch to UHS speed modes. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-07-17mmc: am654_sdhci: Add Support for PHYFaiz Abbas
Add support in the driver for handling phy specific registers. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-07-17mmc: am654_sdhci: Remove quirksFaiz Abbas
The host controller works perfectly well without having to add any quirks. Remove them. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>
2019-07-17arm64: dts: k3: Sync sdhci0 node from kernel and change driver nameFaiz Abbas
Sync the sdhci0 node from kernel. This changes the compatible that is required to be there in the driver. Change the same for the SD card node which is not yet supported in kernel. This also syncs the main_pmx0 node as a side effect. Also change the name of the driver to match the compatible in kernel. Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Reviewed-by: Tom Rini <trini@konsulko.com>