path: root/Documentation/devicetree/bindings/mmc
diff options
authorDinh Nguyen <dinguyen@altera.com>2014-02-17 20:31:02 -0600
committerChris Ball <chris@printf.net>2014-02-26 21:30:23 -0500
commitd9c3f5df539a8a74cc830b35838670fe0541fed1 (patch)
tree4f8a2158012aa5046b9cce60645d08954a070794 /Documentation/devicetree/bindings/mmc
parentec1e5d703e4a75fb19e99a92d20b4b70861bf483 (diff)
dts: socfpga: Add support for SD/MMC on the SOCFPGA platform
Introduce "altr,socfpga-dw-mshc" to enable Altera's SOCFPGA platform specific implementation of the dw_mmc driver. Also add the "syscon" binding to the "altr,sys-mgr" node. The clock driver can use the syscon driver to toggle the register for the SD/MMC clock phase shift settings. Finally, fix an indentation error for the sysmgr node. Signed-off-by: Dinh Nguyen <dinguyen@altera.com> Acked-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Tested-by: Steffen Trumtrar <s.trumtrar@pengutronix.de> Signed-off-by: Chris Ball <chris@printf.net>
Diffstat (limited to 'Documentation/devicetree/bindings/mmc')
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/socfpga-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/socfpga-dw-mshc.txt
new file mode 100644
index 000000000000..4897bea7e3f8
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/socfpga-dw-mshc.txt
@@ -0,0 +1,23 @@
+* Altera SOCFPGA specific extensions to the Synopsys Designware Mobile
+ Storage Host Controller
+The Synopsys designware mobile storage host controller is used to interface
+a SoC with storage medium such as eMMC or SD/MMC cards. This file documents
+differences between the core Synopsys dw mshc controller properties described
+by synopsys-dw-mshc.txt and the properties used by the Altera SOCFPGA specific
+extensions to the Synopsys Designware Mobile Storage Host Controller.
+Required Properties:
+* compatible: should be
+ - "altr,socfpga-dw-mshc": for Altera's SOCFPGA platform
+ mmc: dwmmc0@ff704000 {
+ compatible = "altr,socfpga-dw-mshc";
+ reg = <0xff704000 0x1000>;
+ interrupts = <0 129 4>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };

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