Add UHS/HS200 mode support in sdhci-omap. The programming sequence for voltage switching, tuning is followed from AM572x TRM http://www.ti.com/lit/ug/spruhz6i/spruhz6i.pdf (Similar to all AM57x/DRA7x SoCs). The patch series also implements workaround for errata published in http://www.ti.com/lit/er/sprz429k/sprz429k.pdf. It also includes a pdata-quirk patch since both pdata-quirks and sdhci-omap uses struct sdhci_omap_platform_data. The dt patches enabling UHS/HS200 will follow this series. Changes from v1: *) Only poll on DAT0 and DATI for card_busy status *) Cleanup iodelay patch as suggested by Tony. *) Added quirk to disable HW timeout *) Use the existing data timer but program a relatively accurate SW timeout value (Impacts all platforms) *) Fix a bug in sdhci which was using data_timer for non data line commands I've tested on dra72-evm, dra7xx-evm, dra71-evm, am572x-idk, am571x-idk dra76-evm, am57xx-evm and k2g-evm. I've also pushed the series (along with dt) to https://github.com/kishon/linux-wip.git sdhci_uhs_v2 Kishon Vijay Abraham I (16): mmc: sdhci-omap: Update 'power_mode' outside sdhci_omap_init_74_clocks mmc: sdhci-omap: Add card_busy host ops mmc: sdhci-omap: Add custom set_uhs_signaling sdhci_host ops mmc: sdhci-omap: Add tuning support mmc: sdhci-omap: Workaround for Errata i802 mmc: sdhci_omap: Add support to set IODELAY values mmc: sdhci_omap: Fix sdhci-omap quirks mmc: sdhci-omap: Add support to override f_max and iodelay from pdata mmc: sdhci: Add quirk to disable HW timeout mmc: sdhci: Fix to use data_timer only for data line commands mmc: sdhci: Program a relatively accurate SW timeout value mmc: sdhci-omap: Workaround for Errata i834 dt-bindings: sdhci-omap: Add K2G specific binding mmc: sdhci-omap: Add support for MMC/SD controller in k2g SoC mmc: sdhci-omap: Add SPDX identifier ARM: OMAP2+: Use sdhci-omap specific pdata-quirks for MMC/SD on DRA74x EVM .../devicetree/bindings/mmc/sdhci-omap.txt | 2 + arch/arm/mach-omap2/pdata-quirks.c | 34 +- drivers/mmc/host/sdhci-omap.c | 430 +++++++++++++++++++-- drivers/mmc/host/sdhci.c | 62 ++- drivers/mmc/host/sdhci.h | 17 + include/linux/platform_data/sdhci-omap.h | 22 ++ 6 files changed, 518 insertions(+), 49 deletions(-) create mode 100644 include/linux/platform_data/sdhci-omap.h -- 2.11.0 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
