summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/mmc/usdhi6rol0.txt
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /Documentation/devicetree/bindings/mmc/usdhi6rol0.txt
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mmc/usdhi6rol0.txt')
-rw-r--r--Documentation/devicetree/bindings/mmc/usdhi6rol0.txt39
1 files changed, 39 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/usdhi6rol0.txt b/Documentation/devicetree/bindings/mmc/usdhi6rol0.txt
new file mode 100644
index 000000000..6d1b7971d
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/usdhi6rol0.txt
@@ -0,0 +1,39 @@
+* Renesas usdhi6rol0 SD/SDIO host controller
+
+Required properties:
+
+- compatible: must be
+ "renesas,usdhi6rol0"
+- interrupts: 3 interrupts, named "card detect", "data" and "SDIO" must be
+ specified
+- clocks: a clock binding for the IMCLK input
+
+Optional properties:
+
+- vmmc-supply: a phandle of a regulator, supplying Vcc to the card
+- vqmmc-supply: a phandle of a regulator, supplying VccQ to the card
+- pinctrl-names: Can contain a "default" entry and a "state_uhs"
+ entry. The state_uhs entry is used together with the default
+ entry when the board requires distinct settings for UHS speeds.
+
+- pinctrl-N: One property for each name listed in pinctrl-names, see
+ ../pinctrl/pinctrl-bindings.txt.
+
+Additionally any standard mmc bindings from mmc.txt can be used.
+
+Example:
+
+sd0: sd@ab000000 {
+ compatible = "renesas,usdhi6rol0";
+ reg = <0xab000000 0x200>;
+ interrupts = <0 23 0x4
+ 0 24 0x4
+ 0 25 0x4>;
+ interrupt-names = "card detect", "data", "SDIO";
+ bus-width = <4>;
+ max-frequency = <50000000>;
+ cap-power-off-card;
+ clocks = <&imclk>;
+ vmmc-supply = <&vcc_sd0>;
+ vqmmc-supply = <&vccq_sd0>;
+};