[PATCH v1 1/3] dt-bindings: mmc: Add bindings for StarFive

William Qiu
2022-12-07T13:18:23Z

Add documentation to describe StarFive
designware mobile storage host controller driver.

Signed-off-by: William Qiu <william.qiu@starfivetech.com>
---
.../bindings/mmc/starfive,jh7110-sdio.yaml | 71 +++++++++++++++++++
1 file changed, 71 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mmc/starfive,jh7110-sdio.yaml

diff --git a/Documentation/devicetree/bindings/mmc/starfive,jh7110-sdio.yaml b/Documentation/devicetree/bindings/mmc/starfive,jh7110-sdio.yaml
new file mode 100644
index 000000000000..4f27ef3cf4f3
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/starfive,jh7110-sdio.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mmc/starfive,jh7110-sdio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive Designware Mobile Storage Host Controller
+
+description:
+ StarFive uses the Synopsys designware mobile storage host controller
+ to interface a SoC with storage medium such as eMMC or SD/MMC cards.
+
+allOf:
+ - $ref: "synopsys-dw-mshc-common.yaml#"
+
+maintainers:
+ - William Qiu <william.qiu@starfivetech.com>
+
+properties:
+ compatible:
+ const: starfive,jh7110-sdio
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ items:
+ - description: biu clock
+ - description: ciu clock
+
+ clock-names:
+ minItems: 1
+ items:
+ - const: biu
+ - const: ciu
+
+ interrupts:
+ maxItems: 1
+
+ starfive,sys-syscon:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description:
+ The desired number of times that the host execute tuning when needed.
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - clock-names
+ - interrupts
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/starfive-jh7110.h>
+ #include <dt-bindings/reset/starfive-jh7110.h>
+ mmc@16010000 {
+ compatible = "starfive,jh7110-sdio";
+ reg = <0x16010000 0x10000>;
+ clocks = <&syscrg JH7110_SYSCLK_SDIO0_AHB>,
+ <&syscrg JH7110_SYSCLK_SDIO0_SDCARD>;
+ clock-names = "biu","ciu";
+ resets = <&syscrg JH7110_SYSRST_SDIO0_AHB>;
+ reset-names = "reset";
+ interrupts = <74>;
+ fifo-depth = <32>;
+ fifo-watermark-aligned;
+ data-addr = <0>;
+ };
--
2.34.1