@@ -0,0 +1,25 @@
+These properties are common to multiple MMC host controllers. Any host
+that requires the respective functionality should implement them using
+these definitions.
+
+Required properties:
+- bus-width: Number of data lines, can be <1>, <4>, or <8>
+
+Optional properties:
+- cd-gpios : Specify GPIOs for card detection, see gpio binding
+- wp-gpios : Specify GPIOs for write protection, see gpio binding
+- cd-inverted: when present, polarity on the wp gpio line is inverted
+- wp-inverted: when present, polarity on the wp gpio line is inverted
+- non-removable: non-removable slot (like eMMC)
+
+Example:
+
+sdhci@ab000000 {
+ compatible = "sdhci";
+ reg = <0xab000000 0x200>;
+ interrupts = <23>;
+ bus-width = <4>;
+ cd-gpios = <&gpio 69 0>;
+ cd-inverted;
+ wp-gpios = <&gpio 70 0>;
+}
@@ -11,9 +11,11 @@ Required properties:
- interrupt-parent : interrupt source phandle.
- clock-frequency : specifies eSDHC base clock frequency.
- sdhci,wp-inverted : (optional) specifies that eSDHC controller
- reports inverted write-protect state;
+ reports inverted write-protect state; New devices should use
+ the generic "wp-inverted" property.
- sdhci,1-bit-only : (optional) specifies that a controller can
- only handle 1-bit data transfers.
+ only handle 1-bit data transfers. New devices should use the
+ generic "bus-width = <1>" property.
- sdhci,auto-cmd12: (optional) specifies that a controller can
only handle auto CMD12.
@@ -9,7 +9,7 @@ Required properties:
- interrupts : Should contain eSDHC interrupt
Optional properties:
-- fsl,card-wired : Indicate the card is wired to host permanently
+- non-removable : Indicate the card is wired to host permanently
- fsl,cd-internal : Indicate to use controller internal card detection
- fsl,wp-internal : Indicate to use controller internal write protection
- cd-gpios : Specify GPIOs for card detection
@@ -10,7 +10,8 @@ Required properties:
Optional properties:
- gpios : may specify GPIOs in this order: Card-Detect GPIO,
- Write-Protect GPIO.
+ Write-Protect GPIO. Note that this does not follow the
+ binding from mmc.txt, for historic reasons.
- interrupts : the interrupt of a card detect interrupt.
- interrupt-parent : the phandle for the interrupt controller that
services interrupts for this device.
@@ -6,13 +6,13 @@ and SDIO types of memory cards.
Required properties:
- compatible : Should be "nvidia,<chip>-sdhci"
- reg : Should contain SD/MMC registers location and length
-- interrupts : Should contain SD/MMC interrupt
+- interrupt : Should contain SD/MMC interrupt
+- bus-width : Number of data lines, can be <1>, <4>, or <8>
Optional properties:
- cd-gpios : Specify GPIOs for card detection
- wp-gpios : Specify GPIOs for write protection
- power-gpios : Specify GPIOs for power control
-- support-8bit : Boolean, indicates if 8-bit mode should be used.
Example:
@@ -23,5 +23,5 @@ sdhci@c8000200 {
cd-gpios = <&gpio 69 0>; /* gpio PI5 */
wp-gpios = <&gpio 57 0>; /* gpio PH1 */
power-gpios = <&gpio 155 0>; /* gpio PT3 */
- support-8bit;
+ bus-width = <8>;
};
@@ -15,10 +15,10 @@ Optional properties:
ti,dual-volt: boolean, supports dual voltage cards
<supply-name>-supply: phandle to the regulator device tree node
"supply-name" examples are "vmmc", "vmmc_aux" etc
-ti,bus-width: Number of data lines, default assumed is 1 if the property is missing.
+bus-width: Number of data lines, default assumed is 1 if the property is missing.
cd-gpios: GPIOs for card detection
wp-gpios: GPIOs for write protection
-ti,non-removable: non-removable slot (like eMMC)
+non-removable: non-removable slot (like eMMC)
ti,needs-special-reset: Requires a special softreset sequence
Example:
@@ -27,7 +27,7 @@ Example:
reg = <0x4809c000 0x400>;
ti,hwmods = "mmc1";
ti,dual-volt;
- ti,bus-width = <4>;
+ bus-width = <4>;
vmmc-supply = <&vmmc>; /* phandle to regulator node */
ti,non-removable;
};
@@ -35,7 +35,7 @@
};
esdhc@50008000 { /* ESDHC2 */
- fsl,card-wired;
+ non-removable;
status = "okay";
};
@@ -76,7 +76,7 @@
};
esdhc@50020000 { /* ESDHC3 */
- fsl,card-wired;
+ non-removable;
status = "okay";
};
};
@@ -41,7 +41,7 @@
};
usdhc@0219c000 { /* uSDHC4 */
- fsl,card-wired;
+ non-removable;
vmmc-supply = <®_3p3v>;
status = "okay";
};
@@ -57,7 +57,7 @@
&mmc1 {
vmmc-supply = <&vmmc1>;
vmmc_aux-supply = <&vsim>;
- ti,bus-width = <8>;
+ bus-width = <8>;
};
&mmc2 {
@@ -55,7 +55,7 @@
&mmc1 {
vmmc-supply = <&vmmc>;
- ti,bus-width = <8>;
+ bus-width = <8>;
};
&mmc2 {
@@ -72,5 +72,5 @@
&mmc5 {
ti,non-removable;
- ti,bus-width = <4>;
+ bus-width = <4>;
};
@@ -94,12 +94,12 @@
&mmc1 {
vmmc-supply = <&vmmc>;
- ti,bus-width = <8>;
+ bus-width = <8>;
};
&mmc2 {
vmmc-supply = <&vaux1>;
- ti,bus-width = <8>;
+ bus-width = <8>;
ti,non-removable;
};
@@ -112,6 +112,6 @@
};
&mmc5 {
- ti,bus-width = <4>;
+ bus-width = <4>;
ti,non-removable;
};
@@ -54,6 +54,7 @@
cd-gpios = <&gpio 69 0>; /* gpio PI5 */
wp-gpios = <&gpio 155 0>; /* gpio PT3 */
power-gpios = <&gpio 31 0>; /* gpio PD7 */
+ bus-width = <4>;
};
sdhci@78000200 {
@@ -66,5 +67,6 @@
sdhci@78000400 {
support-8bit;
+ bus-width = <8>;
};
};
@@ -100,6 +100,7 @@
cd-gpios = <&gpio 69 0>; /* gpio PI5 */
wp-gpios = <&gpio 57 0>; /* gpio PH1 */
power-gpios = <&gpio 155 0>; /* gpio PT3 */
+ bus-width = <4>;
};
sdhci@c8000400 {
@@ -111,5 +112,6 @@
wp-gpios = <&gpio 59 0>; /* gpio PH3 */
power-gpios = <&gpio 70 0>; /* gpio PI6 */
support-8bit;
+ bus-width = <8>;
};
};
@@ -97,6 +97,7 @@
cd-gpios = <&gpio 173 0>; /* gpio PV5 */
wp-gpios = <&gpio 57 0>; /* gpio PH1 */
power-gpios = <&gpio 169 0>; /* gpio PV1 */
+ bus-width = <4>;
};
sdhci@c8000200 {
@@ -109,6 +110,7 @@
sdhci@c8000600 {
support-8bit;
+ bus-width = <8>;
};
gpio-keys {
@@ -104,10 +104,12 @@
cd-gpios = <&gpio 69 0>; /* gpio PI5 */
wp-gpios = <&gpio 57 0>; /* gpio PH1 */
power-gpios = <&gpio 70 0>; /* gpio PI6 */
+ bus-width = <4>;
};
sdhci@c8000600 {
support-8bit;
+ bus-width = <8>;
};
usb@c5000000 {
@@ -100,9 +100,11 @@
cd-gpios = <&gpio 69 0>; /* gpio PI5 */
wp-gpios = <&gpio 57 0>; /* gpio PH1 */
power-gpios = <&gpio 70 0>; /* gpio PI6 */
+ bus-width = <4>;
};
sdhci@c8000600 {
support-8bit;
+ bus-width = <8>;
};
};
@@ -119,6 +119,7 @@
sdhc@2e000 {
status = "disabled";
sdhci,1-bit-only;
+ bus-width = <1>;
};
par_io@e0100 {
@@ -1766,7 +1766,7 @@ static struct omap_mmc_platform_data *of_get_hsmmc_pdata(struct device *dev)
pdata->slots[0].nonremovable = true;
pdata->slots[0].no_regulator_off_init = true;
}
- of_property_read_u32(np, "ti,bus-width", &bus_width);
+ of_property_read_u32(np, "bus-width", &bus_width);
if (bus_width == 4)
pdata->slots[0].caps |= MMC_CAP_4_BIT_DATA;
else if (bus_width == 8)
@@ -402,7 +402,7 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
if (!np)
return -ENODEV;
- if (of_get_property(np, "fsl,card-wired", NULL))
+ if (of_get_property(np, "non-removable", NULL))
boarddata->cd_type = ESDHC_CD_PERMANENT;
if (of_get_property(np, "fsl,cd-controller", NULL))
@@ -42,7 +42,8 @@ static struct sdhci_ops sdhci_pltfm_ops = {
#ifdef CONFIG_OF
static bool sdhci_of_wp_inverted(struct device_node *np)
{
- if (of_get_property(np, "sdhci,wp-inverted", NULL))
+ if (of_get_property(np, "sdhci,wp-inverted", NULL) ||
+ of_get_property(np, "wp-inverted", NULL))
return true;
/* Old device trees don't have the wp-inverted property. */
@@ -59,13 +60,16 @@ void sdhci_get_of_property(struct platform_device *pdev)
struct sdhci_host *host = platform_get_drvdata(pdev);
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
const __be32 *clk;
+ u32 bus_width;
int size;
if (of_device_is_available(np)) {
if (of_get_property(np, "sdhci,auto-cmd12", NULL))
host->quirks |= SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12;
- if (of_get_property(np, "sdhci,1-bit-only", NULL))
+ if (of_get_property(np, "sdhci,1-bit-only", NULL) ||
+ (of_property_read_u32(np, "bus-width", &bus_width) == 0 &&
+ bus_width = 1))
host->quirks |= SDHCI_QUIRK_FORCE_1_BIT_DATA;
if (sdhci_of_wp_inverted(np))