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path: root/drivers/mmc/host/sdhci-xenon.c
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2017-05-19mmc: sdhci-xenon: kill xenon_clean_phy()Jisheng Zhang
Currently, the xenon_clean_phy() is only used for freeing phy_params. The phy_params is allocated by devm_kzalloc(), there's no need to free is explicitly. Signed-off-by: Jisheng Zhang <jszhang@marvell.com> Acked-by: Hu Ziji <huziji@marvell.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com>
2017-04-28mmc: sdhci-xenon: Fix the work flow in xenon_remove().Hu Ziji
sdhci_remove_host() might execute SOFT_RESET_ALL. Inside xenon_remove(), Xenon SDHC should be enabled during sdhci_remove_host(). Move xenon_sdhc_unprepare after sdhci_remove_host() such that Xenon SDHC is disabled after sdhci_remove_host() completes. Signed-off-by: Hu Ziji <huziji@marvell.com> Reported-by: Jisheng Zhang <jszhang@marvell.com> Tested-by: Jisheng Zhang <jszhang@marvell.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: sdhci-xenon: Add SoC PHY PAD voltage controlHu Ziji
Some SoCs have PHY PAD outside Xenon IP. PHY PAD voltage should match signalling voltage in use. Add generic SoC PHY PAD voltage control interface. Implement Aramda-3700 SoC PHY PAD voltage control. Signed-off-by: Hu Ziji <huziji@marvell.com> Tested-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: sdhci-xenon: Add support to PHYs of Marvell Xenon SDHCHu Ziji
Marvell Xenon eMMC/SD/SDIO Host Controller contains PHY. Multiple types of PHYs are supported. Add support to multiple types of PHYs init and configuration. Add register definitions of PHYs. Xenon PHY cannot fit in kernel common PHY framework. Xenon SDHC PHY register is a part of Xenon SDHC register set. Besides, MMC initialization has to call several PHY functions to complete timing setting. Those PHY setting functions have to access SDHC registers and know current MMC setting, such as bus width, clock frequency and speed mode. As a result, implement Xenon PHY in MMC host directory. Signed-off-by: Hu Ziji <huziji@marvell.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2017-04-24mmc: sdhci-xenon: Add Marvell Xenon SDHC core functionalityHu Ziji
Add Xenon eMMC/SD/SDIO host controller core functionality. Add Xenon specific initialization process. Add Xenon specific mmc_host_ops APIs. Add Xenon specific register definitions. Add CONFIG_MMC_SDHCI_XENON support in drivers/mmc/host/Kconfig. Marvell Xenon SDHC conforms to SD Physical Layer Specification Version 3.01 and is designed according to the guidelines provided in the SD Host Controller Standard Specification Version 3.00. Signed-off-by: Hu Ziji <huziji@marvell.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>