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Message-ID: <1444729078-26585-3-git-send-email-chaotian.jing@mediatek.com>
Date: Tue, 13 Oct 2015 17:37:56 +0800
From: Chaotian Jing <chaotian.jing@...iatek.com>
To: Ulf Hansson <ulf.hansson@...aro.org>
CC: Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
Mark Rutland <mark.rutland@....com>,
Ian Campbell <ijc+devicetree@...lion.org.uk>,
Kumar Gala <galak@...eaurora.org>,
Matthias Brugger <matthias.bgg@...il.com>,
Catalin Marinas <catalin.marinas@....com>,
Will Deacon <will.deacon@....com>,
Hans de Goede <hdegoede@...hat.com>,
Lars-Peter Clausen <lars@...afoo.de>,
Javier Martinez Canillas <javier.martinez@...labora.co.uk>,
Sascha Hauer <s.hauer@...gutronix.de>,
Howard Chen <ibanezchen@...il.com>,
Daniel Kurtz <djkurtz@...omium.org>,
Adrian Hunter <adrian.hunter@...el.com>,
Kristina Martsenko <kristina.martsenko@...il.com>,
Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-mediatek@...ts.infradead.org>, <linux-mmc@...r.kernel.org>,
<srv_heupstream@...iatek.com>,
Chaotian Jing <chaotian.jing@...iatek.com>
Subject: [PATCH 2/4] mmc: dt-bindings: update Mediatek MMC bindings
Add 400Mhz clock source for HS400 mode
Signed-off-by: Chaotian Jing <chaotian.jing@...iatek.com>
---
Documentation/devicetree/bindings/mmc/mtk-sd.txt | 12 ++++++++++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.txt b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
index a1adfa4..745bee2 100644
--- a/Documentation/devicetree/bindings/mmc/mtk-sd.txt
+++ b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
@@ -17,6 +17,11 @@ Required properties:
- vmmc-supply: power to the Core
- vqmmc-supply: power to the IO
+Optional properties:
+- clocks: 400mhz clock source for HS400
+- clock-names: "400mhz"
+- hs400-ds-delay: HS400 DS delay setting
+
Examples:
mmc0: mmc@...30000 {
compatible = "mediatek,mt8173-mmc", "mediatek,mt8135-mmc";
@@ -24,9 +29,12 @@ mmc0: mmc@...30000 {
interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_LOW>;
vmmc-supply = <&mt6397_vemc_3v3_reg>;
vqmmc-supply = <&mt6397_vio18_reg>;
- clocks = <&pericfg CLK_PERI_MSDC30_0>, <&topckgen CLK_TOP_MSDC50_0_H_SEL>;
- clock-names = "source", "hclk";
+ clocks = <&pericfg CLK_PERI_MSDC30_0>,
+ <&topckgen CLK_TOP_MSDC50_0_H_SEL>,
+ <&topckgen CLK_TOP_MSDCPLL_D2> ;
+ clock-names = "source", "hclk", "400mhz";
pinctrl-names = "default", "state_uhs";
pinctrl-0 = <&mmc0_pins_default>;
pinctrl-1 = <&mmc0_pins_uhs>;
+ hs400-ds-delay = <0x14015>;
};
--
1.8.1.1.dirty
--
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