From: Chunyan Zhang <zhang.chunyan@linaro.org>
To: Ulf Hansson <ulf.hansson@linaro.org>,
Adrian Hunter <adrian.hunter@intel.com>
Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
Orson Zhai <orsonzhai@gmail.com>,
Baolin Wang <baolin.wang@linaro.org>,
Billows Wu <billows.wu@unisoc.com>,
Jason Wu <jason.wu@unisoc.com>,
Chunyan Zhang <chunyan.zhang@unisoc.com>,
Chunyan Zhang <zhang.lyra@gmail.com>
Subject: [PATCH V6 9/9] dt-bindings: sdhci-sprd: Add bindings for the sdhci-sprd controller
Date: Fri, 24 Aug 2018 17:20:28 +0800 [thread overview]
Message-ID: <1535102428-20332-10-git-send-email-zhang.chunyan@linaro.org> (raw)
In-Reply-To: <1535102428-20332-1-git-send-email-zhang.chunyan@linaro.org>
From: Chunyan Zhang <chunyan.zhang@unisoc.com>
This patch adds the device-tree binding documentation for Spreadtrum
SDHCI driver.
Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com>
---
.../devicetree/bindings/mmc/sdhci-sprd.txt | 41 ++++++++++++++++++++++
1 file changed, 41 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-sprd.txt
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-sprd.txt b/Documentation/devicetree/bindings/mmc/sdhci-sprd.txt
new file mode 100644
index 0000000..45c9978
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/sdhci-sprd.txt
@@ -0,0 +1,41 @@
+* Spreadtrum SDHCI controller (sdhci-sprd)
+
+The Secure Digital (SD) Host controller on Spreadtrum SoCs provides an interface
+for MMC, SD and SDIO types of cards.
+
+This file documents differences between the core properties in mmc.txt
+and the properties used by the sdhci-sprd driver.
+
+Required properties:
+- compatible: Should contain "sprd,sdhci-r11".
+- reg: physical base address of the controller and length.
+- interrupts: Interrupts used by the SDHCI controller.
+- clocks: Should contain phandle for the clock feeding the SDHCI controller
+- clock-names: Should contain the following:
+ "sdio" - SDIO source clock (required)
+ "enable" - gate clock which used for enabling/disabling the device (required)
+
+Optional properties:
+- assigned-clocks: the same with "sdio" clock
+- assigned-clock-parents: the default parent of "sdio" clock
+
+Examples:
+
+sdio0: sdio@20600000 {
+ compatible = "sprd,sdhci-r11";
+ reg = <0 0x20600000 0 0x1000>;
+ interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
+
+ clock-names = "sdio", "enable";
+ clocks = <&ap_clk CLK_EMMC_2X>,
+ <&apahb_gate CLK_EMMC_EB>;
+ assigned-clocks = <&ap_clk CLK_EMMC_2X>;
+ assigned-clock-parents = <&rpll CLK_RPLL_390M>;
+
+ bus-width = <8>;
+ non-removable;
+ no-sdio;
+ no-sd;
+ cap-mmc-hw-reset;
+ status = "okay";
+};
--
2.7.4
prev parent reply other threads:[~2018-08-24 9:22 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-24 9:20 [PATCH V6 0/9] mmc: add support for sdhci 4.0 Chunyan Zhang
2018-08-24 9:20 ` [PATCH V6 1/9] mmc: sdhci: Add version V4 definition Chunyan Zhang
2018-08-24 9:20 ` [PATCH V6 2/9] mmc: sdhci: Add sd host v4 mode Chunyan Zhang
2018-08-24 9:20 ` [PATCH V6 3/9] mmc: sdhci: Change SDMA address register for " Chunyan Zhang
2018-08-24 9:20 ` [PATCH V6 4/9] mmc: sdhci: Add ADMA2 64-bit addressing support for V4 mode Chunyan Zhang
2018-08-24 9:20 ` [PATCH V6 5/9] mmc: sdhci: Add 32-bit block count support for v4 mode Chunyan Zhang
2018-08-27 7:07 ` Adrian Hunter
2018-08-27 7:52 ` Chunyan Zhang
2018-08-24 9:20 ` [PATCH V6 6/9] mmc: sdhci: Add Auto CMD Auto Select support Chunyan Zhang
2018-08-24 9:20 ` [PATCH V6 7/9] mmc: sdhci: SDMA may use Auto-CMD23 in v4 mode Chunyan Zhang
2018-08-24 9:20 ` [PATCH V6 8/9] mmc: sdhci-sprd: Add Spreadtrum's initial host controller Chunyan Zhang
2018-08-27 7:34 ` Adrian Hunter
2018-08-24 9:20 ` Chunyan Zhang [this message]
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