Update ti-omap-hsmmc devicetree documentation with omap-hsmmc-control binding
information for MMC1/MMC2 in different OMAP SoCs.
Signed-off-by: Balaji T K <balajitk@xxxxxx>
---
.../devicetree/bindings/mmc/ti-omap-hsmmc.txt | 34 ++++++++++++++++++++
1 files changed, 34 insertions(+), 0 deletions(-)
diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
index ed271fc..f0468e8 100644
--- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
+++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
@@ -31,3 +31,37 @@ Example:
vmmc-supply = <&vmmc>; /* phandle to regulator node */
ti,non-removable;
};
+
+OMAP HSMMC CONTROL
+
+Required properties:
+- compatible: Should be "ti,omap-hsmmc-control"
+- reg : Address and length of the register set for the device. It contains
+ the address of "pbias" and/or "prog_io1" and/or "ctrl_mmc1" and/or "devconf1"
+ and/or "devconf0"
+- reg-names: The names of the register addresses corresponding to the registers
+ filled in "reg".
+- ti,ctrl-type: This is used to differentiate mmc1, mmc2 on different
+ omap SOCs like 2430, omap3, omap3630, omap4, omap5.
+ MMC1 pbias programming is same for omap2430 and omap3 but differs across
+ omap3,4,5.
+ Should be "0" for no control mmc module configuration
+ Should be "1" for MMC1 on OMAP2430 for MMC1 pbias, loopback
+ and speed mode configuration
+ Should be "2" for MMC2 on OMAP2430, OMAP3 for loopback clock configuration
+ Should be "3" for MMC1 on OMAP3430 for MMC1 pbias, loopback
+ and speed mode configuration
+ Should be "4" for MMC1 on OMAP3630 for MMC1 pbias, loopback
+ and speed mode configuration
+ Should be "5" for MMC1 on OMAP4 for MMC1 pbias configuration
+ Should be "6" for MMC2 on OMAP4 for loopback clock configuration
+ Should be "7" for MMC1 on OMAP5 for MMC1 pbias configuration
+
+Example:
+omap_control_mmc1: omap-hsmmc-control@4A100600 {
+ compatible = "ti,omap-hsmmc-control";
+ reg = <0x4A100600 0x4>,
+ <0x4A100628 0x4>;
+ reg-names = "pbias", "mmc1";
+ ctrl-type = <5>;
+};
--
1.7.5.4
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