Hi all, This series implements support for faster signaling modes on Tegra SDHCI controllers. This series consist of several parts: changes required for 1.8 V signaling and pad control, pad calibration, and tuning. Following earlies patch sets have been merged into this larger set: "Tegra PMC pinctrl pad configuration", "Tegra SDHCI enable 1.8 V signaling on Tegar210 and Tegra186", "Tegra SDHCI update the padautocal procedure". Also the patches for enabling SDHCI tuning are added. Changelog: v3: - Remove tegra_sdhci_writew() from tegra210_sdhci_ops to prevent incorrect access to SDHCI_TRANSFER_MODE on Tegra210. - Drop "mmc: sdhci: Add a quirk to skip clearing the transfer mode register on tuning". This is no longer needed since it was effectively a workaround to the behavior caused by tegra_sdhci_writew() on Tegra210. - Implement disabling of the card clock during issuing of the tuning command in tegra210_sdhci_writew(). - Drop "mmc: sdhci: Add a quirk to disable card clock during tuning". This is now implemented in the sdhci-tegra driver. v2: - Fix grammar in PMC device tree bindings docs - Remove a stray line from tegra sdhci bindings - Cosmetic changes to PMC pinctrl driver - Fix a typo in "soc/tegra: pmc: Implement tegra_io_pad_is_powered()" commit message - Declare mask and value on the same line in tegra_io_pad_is_powered() - Move the call to tegra_sdhci_is_pad_and_regulator_valid() to inside the if condition in tegra_sdhci_reset() - Use usleep_range() in tegra_sdhci_configure_cal_pad() - Move sdhci_writel() out of the enable if-else body in tegra_sdhci_configure_cal_pad() - Add a delay before starting polling in tegra_sdhci_pad_autocalib() - Use usleep_range() in tegra_sdhci_set_tap() - Rename orig_enabled to status in tegra_sdhci_configure_card_clk() - Fix if condition wrapping alignment in tegra_sdhci_set_tap() v1: - Probe the regulator voltage capabilities to determine whether pinctrl is needed in tegra_sdhci_r eset - Don't remove tegra_sdhci_voltage_switch() - Use dev_warn() in tegra_sdhci_init_pinctrl_info() - Don't change start_signal_voltage_switch callback if pinctrl info invalid - Only call udelay(1) on enable in tegra_sdhci_configure_cal_pad() - Add nvidia, prefix to pad autocal offset dt props in the example See the original patch sets for earlier changelogs. Aapo Vienamo (38): dt-bindings: Add Tegra PMC pad configuration bindings dt-bindings: mmc: tegra: Add pad voltage control properties dt-bindings: Add Tegra SDHCI pad pdpu offset bindings dt-bindings: mmc: Add Tegra SDHCI sampling trimmer values soc/tegra: pmc: Fix pad voltage configuration for Tegra186 soc/tegra: pmc: Factor out DPD register bit calculation soc/tegra: pmc: Implement tegra_io_pad_is_powered() soc/tegra: pmc: Use X macro to generate IO pad tables soc/tegra: pmc: Remove public pad voltage APIs soc/tegra: pmc: Implement pad configuration via pinctrl mmc: tegra: Reconfigure pad voltages during voltage switching mmc: tegra: Poll for calibration completion mmc: tegra: Set calibration pad voltage reference mmc: tegra: Power on the calibration pad mmc: tegra: Disable card clock during pad calibration mmc: tegra: Program pad autocal offsets from dt mmc: tegra: Perform pad calibration after voltage switch mmc: tegra: Enable pad calibration on Tegra210 and Tegra186 mmc: tegra: Add a workaround for tap value change glitch mmc: tegra: Parse default trim and tap from dt mmc: tegra: Configure default tap values mmc: tegra: Configure default trim value on reset mmc: tegra: Use standard SDHCI tuning on Tegra210 and Tegra186 mmc: tegra: Remove tegra_sdhci_writew() from tegra210_sdhci_ops mmc: tegra: Disable card clock during tuning cmd on Tegra210 mmc: tegra: Enable UHS and HS200 modes for Tegra210 mmc: tegra: Enable UHS and HS200 modes for Tegra186 arm64: dts: Add Tegra210 sdmmc pinctrl voltage states arm64: dts: Add Tegra186 sdmmc pinctrl voltage states arm64: dts: tegra210-p2180: Allow ldo2 to go down to 1.8 V arm64: dts: tegra210-p2180: Correct sdmmc4 vqmmc-supply arm64: dts: tegra210-p2597: Remove no-1-8-v from sdmmc1 arm64: dts: tegra186: Add sdmmc pad auto calibration offsets arm64: dts: tegra210: Add sdmmc pad auto calibration offsets arm64: dts: tegra210: Add SDHCI tap and trim values arm64: dts: tegra186: Add SDHCI tap and trim values arm64: dts: tegra186: Assign clocks for sdmmc1 and sdmmc4 arm64: dts: tegra210: Assign clocks for sdmmc1 and sdmmc4 .../arm/tegra/nvidia,tegra186-pmc.txt | 93 +++ .../bindings/arm/tegra/nvidia,tegra20-pmc.txt | 103 ++++ .../bindings/mmc/nvidia,tegra20-sdhci.txt | 68 ++ arch/arm64/boot/dts/nvidia/tegra186.dtsi | 74 +++ .../arm64/boot/dts/nvidia/tegra210-p2180.dtsi | 12 +- .../arm64/boot/dts/nvidia/tegra210-p2597.dtsi | 1 - arch/arm64/boot/dts/nvidia/tegra210.dtsi | 55 ++ drivers/mmc/host/sdhci-tegra.c | 583 ++++++++++++++++-- drivers/soc/tegra/pmc.c | 511 +++++++++++---- .../pinctrl/pinctrl-tegra-io-pad.h | 18 + include/soc/tegra/pmc.h | 20 +- 11 files changed, 1328 insertions(+), 210 deletions(-) create mode 100644 include/dt-bindings/pinctrl/pinctrl-tegra-io-pad.h -- 2.18.0
