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dt-bindings: mmc: sdhci-am654: Document bindings for the host controllers on TI's J7200 devices 

Add binding documentation for mmc host controllers present on
TI's J7200 SOC

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200802070114.9624-1-faiz_abbas@ti.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Faiz Abbas 2020-08-02 12:31:14 +05:30 committed by Ulf Hansson
parent 9481b45ca9
commit d99654f623
1 changed files with 5 additions and 1 deletions
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6
Documentation/devicetree/bindings/mmc/sdhci-am654.txt
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@ -12,6 +12,8 @@ Required Properties:
"ti,am654-sdhci-5.1": SDHCI on AM654 device.
"ti,j721e-sdhci-8bit": 8 bit SDHCI on J721E device.
"ti,j721e-sdhci-4bit": 4 bit SDHCI on J721E device.
"ti,j7200-sdhci-8bit": 8 bit SDHCI on J7200 device.
"ti,j7200-sdhci-4bit": 4 bit SDHCI on J7200 device.
- reg: Must be two entries.
- The first should be the sdhci register space
- The second should the subsystem/phy register space
@ -33,7 +35,9 @@ Required Properties:
These bindings must be provided otherwise the driver will disable the
corresponding speed mode (i.e. all nodes must provide at least -legacy)
Optional Properties (Required for ti,am654-sdhci-5.1 and ti,j721e-sdhci-8bit):
Optional Properties (Required for ti,am654-sdhci-5.1,
ti,j721e-sdhci-8bit,
ti,j7200-sdhci-8bit):
- ti,trm-icp: DLL trim select
- ti,driver-strength-ohm: driver strength in ohms.
Valid values are 33, 40, 50, 66 and 100 ohms.