[PATCH v2 00/16] mmc: sdhci-omap: Add UHS/HS200 mode support

[Kishon Vijay Abraham I]

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