From: Dinh Nguyen <dinguyen@xxxxxxxxxx>
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
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