[PATCHv3 0/4] socfpga: Enable SD/MMC support

[dinguyen at altera.com]

From: Dinh Nguyen <dinguyen at altera.com>

Hi,

This is v3 of the patch series to enable SD/MMC on the SOCFPGA platform. The
SD/MMC IP is the Synopsys DW SD/MMC driver. However, the settings for the
clock-phase of the CIU resides in a register that is located outside of SD/MMC
IP, in a register block called the system manager.

Per Arnd's suggestion, I implemented a clock driver for the system manager
block. The SD/MMC driver can now use the common clock API to set the correct
settings for the SD/MMC clock phase.

Patch 1/4: clk: socfpga: Add a clock driver for SOCFPGA's system manager
This patch adds a clk-sysmgr driver that can be use by a common clock API
to set system manager register bits needed by the SD/MMC driver. The SD/MMC
driver can simply call a common clock API to set the required clock phase
settings for the SD/MMC CIU.

Patch 2/4: arm: dts: Add a system manager compatible property
This patch adds a DTS compatible entry for the new clk-sysmgr driver.

Patch 3/4: mmc: dw_mmc-socfpga: Clean up SOCFPGA platform specific functionality
This patch cleans up dw_mmc-socpfga.c file from defines that are outside of
the SD/MMC IP. It makes the common clock API call to set the SD/MMC clock
phase settings in the system manager.

Patch 4/4: arm: dts: Add support for SD/MMC on SOCFPGA
This patch adds the necessary DTS bindings for the SOCFPGA specific extensions
to the base Synopsys DW SD/MMC driver.

Thanks,

Dinh Nguyen (4):
  clk: socfpga: Add a clock driver for SOCFPGA's system manager
  arm: dts: Add a system manager compatible property
  mmc: dw_mmc-socfpga: Clean up SOCFPGA platform specific
    funcationality
  arm: dts: Add support for SD/MMC on SOCFPGA

 .../bindings/arm/altera/socfpga-system.txt         |   10 +++
 .../devicetree/bindings/mmc/socfpga-dw-mshc.txt    |   38 ++++++++
 arch/arm/boot/dts/socfpga.dtsi                     |   25 +++++-
 arch/arm/boot/dts/socfpga_cyclone5.dtsi            |   12 +++
 arch/arm/boot/dts/socfpga_vt.dts                   |   12 +++
 drivers/clk/socfpga/Makefile                       |    2 +-
 drivers/clk/socfpga/clk-sysmgr.c                   |   91 ++++++++++++++++++++
 drivers/mmc/host/dw_mmc-socfpga.c                  |   78 +++--------------
 8 files changed, 196 insertions(+), 72 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/mmc/socfpga-dw-mshc.txt
 create mode 100644 drivers/clk/socfpga/clk-sysmgr.c

-- 
1.7.9.5