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Diffstat (limited to 'dts/Bindings/mmc/mmc-controller.yaml')
| -rw-r--r-- | dts/Bindings/mmc/mmc-controller.yaml | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/dts/Bindings/mmc/mmc-controller.yaml b/dts/Bindings/mmc/mmc-controller.yaml index ff5ce89e51..802e3ca8be 100644 --- a/dts/Bindings/mmc/mmc-controller.yaml +++ b/dts/Bindings/mmc/mmc-controller.yaml @@ -88,11 +88,18 @@ properties: default: 1 max-frequency: - description: - Maximum operating frequency of the bus. + description: | + Maximum operating frequency of the bus: + - for eMMC, the maximum supported frequency is 200MHz, + - for SD/SDIO cards the SDR104 mode has a max supported + frequency of 208MHz, + - some mmc host controllers do support a max frequency upto + 384MHz. + So, lets keep the maximum supported value here. + $ref: /schemas/types.yaml#/definitions/uint32 minimum: 400000 - maximum: 200000000 + maximum: 384000000 disable-wp: $ref: /schemas/types.yaml#/definitions/flag |