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authorLudovic Desroches <ludovic.desroches@microchip.com>2019-11-28 08:45:20 +0100
committerUlf Hansson <ulf.hansson@linaro.org>2019-12-16 12:28:09 +0100
commitd684be14457fb69a5fd6af32ca2e232cb43c5efc (patch)
tree4b86ea04ce82e9ad5710b1acfad226043c794017 /Documentation/devicetree/bindings/mmc/sdhci-atmel.txt
parentefcc69b261f00ab01afecb2c0ca6cb95f17e740b (diff)
dt-bindings: sdhci-of-at91: new compatible string and update properties
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> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20191128074522.69706-1-ludovic.desroches@microchip.com Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mmc/sdhci-atmel.txt')
-rw-r--r--Documentation/devicetree/bindings/mmc/sdhci-atmel.txt13
1 files changed, 10 insertions, 3 deletions
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt b/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt
index 503c6dbac1b2..69edfd4d3922 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-atmel.txt
@@ -5,11 +5,16 @@ 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.
- microchip,sdcal-inverted: when present, polarity on the SDCAL SoC pin is
inverted. The default polarity for this signal is described in the datasheet.
For instance on SAMA5D2, the pin is usually tied to the GND with a resistor
@@ -17,10 +22,12 @@ Optional properties:
Example:
-sdmmc0: sdio-host@a0000000 {
+mmc0: sdio-host@a0000000 {
compatible = "atmel,sama5d2-sdhci";
reg = <0xa0000000 0x300>;
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>;
};