diff options
Diffstat (limited to 'Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt')
-rw-r--r-- | Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt index bfa461aaac99..9cb55ca57461 100644 --- a/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt +++ b/Documentation/devicetree/bindings/mmc/synopsys-dw-mshc.txt @@ -16,7 +16,7 @@ Required Properties: each child-node representing a supported slot. There should be atleast one child node representing a card slot. The name of the child node representing the slot is recommended to be slot@n where n is the unique number of the slot - connnected to the controller. The following are optional properties which + connected to the controller. The following are optional properties which can be included in the slot child node. * reg: specifies the physical slot number. The valid values of this @@ -59,8 +59,9 @@ Optional properties: is specified and the ciu clock is specified then we'll try to set the ciu clock to this at probe time. -* clock-freq-min-max: Minimum and Maximum clock frequency for card output +* clock-freq-min-max (DEPRECATED): Minimum and Maximum clock frequency for card output clock(cclk_out). If it's not specified, max is 200MHZ and min is 400KHz by default. + (Use the "max-frequency" instead of "clock-freq-min-max".) * num-slots: specifies the number of slots supported by the controller. The number of physical slots actually used could be equal or less than the @@ -74,10 +75,16 @@ Optional properties: * card-detect-delay: Delay in milli-seconds before detecting card after card insert event. The default value is 0. -* supports-highspeed (DEPRECATED): Enables support for high speed cards (up to 50MHz) - (use "cap-mmc-highspeed" or "cap-sd-highspeed" instead) +* data-addr: Override fifo address with value provided by DT. The default FIFO reg + offset is assumed as 0x100 (version < 0x240A) and 0x200(version >= 0x240A) by + driver. If the controller does not follow this rule, please use this property + to set fifo address in device tree. -* broken-cd: as documented in mmc core bindings. +* fifo-watermark-aligned: Data done irq is expected if data length is less than + watermark in PIO mode. But fifo watermark is requested to be aligned with data + length in some SoC so that TX/RX irq can be generated with data done irq. Add this + watermark quirk to mark this requirement and force fifo watermark setting + accordingly. * vmmc-supply: The phandle to the regulator to use for vmmc. If this is specified we'll defer probe until we can find this regulator. @@ -106,6 +113,8 @@ board specific portions as listed below. interrupts = <0 75 0>; #address-cells = <1>; #size-cells = <0>; + data-addr = <0x200>; + fifo-watermark-aligned; resets = <&rst 20>; reset-names = "reset"; }; |