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-rw-r--r--Documentation/devicetree/bindings/mmc/davinci_mmc.txt33
-rw-r--r--Documentation/devicetree/bindings/mmc/fsl-imx-mmc.txt24
-rw-r--r--Documentation/devicetree/bindings/mmc/mxs-mmc.txt12
-rw-r--r--Documentation/devicetree/bindings/mmc/samsung-sdhci.txt35
-rw-r--r--Documentation/devicetree/bindings/mmc/sdhci-sirf.txt18
5 files changed, 87 insertions, 35 deletions
diff --git a/Documentation/devicetree/bindings/mmc/davinci_mmc.txt b/Documentation/devicetree/bindings/mmc/davinci_mmc.txt
new file mode 100644
index 0000000..e5a0140
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/davinci_mmc.txt
@@ -0,0 +1,33 @@
+* TI Highspeed MMC host controller for DaVinci
+
+The Highspeed MMC Host Controller on TI DaVinci family
+provides an interface for MMC, SD and SDIO types of memory cards.
+
+This file documents the properties used by the davinci_mmc driver.
+
+Required properties:
+- compatible:
+ Should be "ti,da830-mmc": for da830, da850, dm365
+ Should be "ti,dm355-mmc": for dm355, dm644x
+
+Optional properties:
+- bus-width: Number of data lines, can be <1>, <4>, or <8>, default <1>
+- max-frequency: Maximum operating clock frequency, default 25MHz.
+- dmas: List of DMA specifiers with the controller specific format
+ as described in the generic DMA client binding. A tx and rx
+ specifier is required.
+- dma-names: RX and TX DMA request names. These strings correspond
+ 1:1 with the DMA specifiers listed in dmas.
+
+Example:
+mmc0: mmc@1c40000 {
+ compatible = "ti,da830-mmc",
+ reg = <0x40000 0x1000>;
+ interrupts = <16>;
+ status = "okay";
+ bus-width = <4>;
+ max-frequency = <50000000>;
+ dmas = <&edma 16
+ &edma 17>;
+ dma-names = "rx", "tx";
+};
diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-mmc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-mmc.txt
new file mode 100644
index 0000000..db44235
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/fsl-imx-mmc.txt
@@ -0,0 +1,24 @@
+* Freescale Secure Digital Host Controller for i.MX2/3 series
+
+This file documents differences to the properties defined in mmc.txt.
+
+Required properties:
+- compatible : Should be "fsl,<chip>-mmc", chip can be imx21 or imx31
+
+Optional properties:
+- dmas: One DMA phandle with arguments as defined by the devicetree bindings
+ of the used DMA controller.
+- dma-names: Has to be "rx-tx".
+
+Example:
+
+sdhci1: sdhci@10014000 {
+ compatible = "fsl,imx27-mmc", "fsl,imx21-mmc";
+ reg = <0x10014000 0x1000>;
+ interrupts = <11>;
+ dmas = <&dma 7>;
+ dma-names = "rx-tx";
+ bus-width = <4>;
+ cd-gpios = <&gpio3 29>;
+ status = "okay";
+};
diff --git a/Documentation/devicetree/bindings/mmc/mxs-mmc.txt b/Documentation/devicetree/bindings/mmc/mxs-mmc.txt
index 54949f6..515addc 100644
--- a/Documentation/devicetree/bindings/mmc/mxs-mmc.txt
+++ b/Documentation/devicetree/bindings/mmc/mxs-mmc.txt
@@ -9,15 +9,19 @@ and the properties used by the mxsmmc driver.
Required properties:
- compatible: Should be "fsl,<chip>-mmc". The supported chips include
imx23 and imx28.
-- interrupts: Should contain ERROR and DMA interrupts
-- fsl,ssp-dma-channel: APBH DMA channel for the SSP
+- interrupts: Should contain ERROR interrupt number
+- dmas: DMA specifier, consisting of a phandle to DMA controller node
+ and SSP DMA channel ID.
+ Refer to dma.txt and fsl-mxs-dma.txt for details.
+- dma-names: Must be "rx-tx".
Examples:
ssp0: ssp@80010000 {
compatible = "fsl,imx28-mmc";
reg = <0x80010000 2000>;
- interrupts = <96 82>;
- fsl,ssp-dma-channel = <0>;
+ interrupts = <96>;
+ dmas = <&dma_apbh 0>;
+ dma-names = "rx-tx";
bus-width = <8>;
};
diff --git a/Documentation/devicetree/bindings/mmc/samsung-sdhci.txt b/Documentation/devicetree/bindings/mmc/samsung-sdhci.txt
index 3b3a1ee..328e990 100644
--- a/Documentation/devicetree/bindings/mmc/samsung-sdhci.txt
+++ b/Documentation/devicetree/bindings/mmc/samsung-sdhci.txt
@@ -5,13 +5,6 @@ MMC, SD and eMMC storage mediums. This file documents differences between the
core mmc properties described by mmc.txt and the properties used by the
Samsung implmentation of the SDHCI controller.
-Note: The mmc core bindings documentation states that if none of the core
-card-detect bindings are used, then the standard sdhci card detect mechanism
-is used. The Samsung's SDHCI controller bindings extends this as listed below.
-
-[A] The property "samsung,cd-pinmux-gpio" can be used as stated in the
- "Optional Board Specific Properties" section below.
-
Required SoC Specific Properties:
- compatible: should be one of the following
- "samsung,s3c6410-sdhci": For controllers compatible with s3c6410 sdhci
@@ -20,18 +13,8 @@ Required SoC Specific Properties:
controller.
Required Board Specific Properties:
-- Samsung GPIO variant (will be completely replaced by pinctrl):
- - gpios: Should specify the gpios used for clock, command and data lines. The
- gpio specifier format depends on the gpio controller.
-- Pinctrl variant (preferred if available):
- - pinctrl-0: Should specify pin control groups used for this controller.
- - pinctrl-names: Should contain only one value - "default".
-
-Optional Board Specific Properties:
-- samsung,cd-pinmux-gpio: Specifies the card detect line that is routed
- through a pinmux to the card-detect pin of the card slot. This property
- should be used only if none of the mmc core card-detect properties are
- used. Only for Samsung GPIO variant.
+- pinctrl-0: Should specify pin control groups used for this controller.
+- pinctrl-names: Should contain only one value - "default".
Example:
sdhci@12530000 {
@@ -39,19 +22,9 @@ Example:
reg = <0x12530000 0x100>;
interrupts = <0 75 0>;
bus-width = <4>;
- cd-gpios = <&gpk2 2 2 3 3>;
-
- /* Samsung GPIO variant */
- gpios = <&gpk2 0 2 0 3>, /* clock line */
- <&gpk2 1 2 0 3>, /* command line */
- <&gpk2 3 2 3 3>, /* data line 0 */
- <&gpk2 4 2 3 3>, /* data line 1 */
- <&gpk2 5 2 3 3>, /* data line 2 */
- <&gpk2 6 2 3 3>; /* data line 3 */
-
- /* Pinctrl variant */
- pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4>;
+ cd-gpios = <&gpk2 2 0>;
pinctrl-names = "default";
+ pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_bus4>;
};
Note: This example shows both SoC specific and board specific properties
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-sirf.txt b/Documentation/devicetree/bindings/mmc/sdhci-sirf.txt
new file mode 100644
index 0000000..dd6ed46
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/sdhci-sirf.txt
@@ -0,0 +1,18 @@
+* SiRFprimII/marco/atlas6 SDHCI Controller
+
+This file documents differences between the core properties in mmc.txt
+and the properties used by the sdhci-sirf driver.
+
+Required properties:
+- compatible: sirf,prima2-sdhc
+
+Optional properties:
+- cd-gpios: card detect gpio, with zero flags.
+
+Example:
+
+ sd0: sdhci@56000000 {
+ compatible = "sirf,prima2-sdhc";
+ reg = <0xcd000000 0x100000>;
+ cd-gpios = <&gpio 6 0>;
+ };