From: Ludovic Desroches <ludovic.desroches@microchip.com>
To: <linux-arm-kernel@lists.infradead.org>,
<devicetree@vger.kernel.org>, <linux-mmc@vger.kernel.org>
Cc: mark.rutland@arm.com, ulf.hansson@linaro.org,
linux-kernel@vger.kernel.org, ludovic.desroches@microchip.com,
robh+dt@kernel.org, adrian.hunter@intel.com,
claudiu.beznea@microchip.com
Subject: [PATCH 1/3] dt-bindings: sdhci-of-at91: new compatible string and update properties
Date: Thu, 12 Sep 2019 22:09:06 +0200 [thread overview]
Message-ID: <20190912200908.31318-1-ludovic.desroches@microchip.com> (raw)
There is a new compatible string for the SAM9X60 sdhci device. It involves
an update of the properties about the clocks stuff.
Signed-off-by: Ludovic Desroches <ludovic.desroches@microchip.com>
---
.../devicetree/bindings/mmc/sdhci-atmel.txt | 25 ++++++++++++++++---
1 file changed, 22 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt b/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt
index 1b662d7171a0..364ceea330b6 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt
@@ -5,12 +5,19 @@ Documentation/devicetree/bindings/mmc/mmc.txt and the properties used by the
sdhci-of-at91 driver.
Required properties:
-- compatible: Must be "atmel,sama5d2-sdhci".
+- compatible: Must be "atmel,sama5d2-sdhci" or "microchip,sam9x60-sdhci".
- clocks: Phandlers to the clocks.
-- clock-names: Must be "hclock", "multclk", "baseclk";
+- clock-names: Must be "hclock", "multclk", "baseclk" for
+ "atmel,sama5d2-sdhci".
+ Must be "hclock", "multclk" for "microchip,sam9x60-sdhci".
+Optional properties:
+- assigned-clocks: The same with "multclk".
+- assigned-clock-rates The rate of "multclk" in order to not rely on the
+ gck configuration set by previous components.
-Example:
+
+Examples:
sdmmc0: sdio-host@a0000000 {
compatible = "atmel,sama5d2-sdhci";
@@ -18,4 +25,16 @@ sdmmc0: sdio-host@a0000000 {
interrupts = <31 IRQ_TYPE_LEVEL_HIGH 0>;
clocks = <&sdmmc0_hclk>, <&sdmmc0_gclk>, <&main>;
clock-names = "hclock", "multclk", "baseclk";
+ assigned-clocks = <&sdmmc0_gclk>;
+ assigned-clock-rates = <480000000>;
+};
+
+sdmmc0: sdio-host@80000000 {
+ compatible = "microchip,sam9x60-sdhci";
+ reg = <0x80000000 0x300>;
+ interrupts = <12 IRQ_TYPE_LEVEL_HIGH 0>;
+ clocks = <&pmc PMC_TYPE_PERIPHERAL 12>, <&pmc PMC_TYPE_GCK 12>;
+ clock-names = "hclock", "multclk";
+ assigned-clocks = <&pmc PMC_TYPE_GCK 12>;
+ assigned-clock-rates = <100000000>;
};
--
2.23.0
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next reply other threads:[~2019-09-12 20:10 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-12 20:09 Ludovic Desroches [this message]
2019-09-12 20:09 ` [PATCH 2/3] mmc: sdhci-of-at91: rework clocks management to support SAM9x60 device Ludovic Desroches
2019-09-20 9:34 ` Eugen.Hristev
2019-10-08 9:24 ` Ludovic Desroches
2019-09-12 20:09 ` [PATCH 3/3] ARM: dts: at91: sama5d2: set the sdmmc gclk frequency Ludovic Desroches
2019-09-30 14:56 ` [PATCH 1/3] dt-bindings: sdhci-of-at91: new compatible string and update properties Rob Herring
2019-10-08 9:28 ` Ludovic Desroches
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