| UniPhier SD/eMMC controller |
| |
| Required properties: |
| - compatible: should be one of the following: |
| "socionext,uniphier-sd-v2.91" - IP version 2.91 |
| "socionext,uniphier-sd-v3.1" - IP version 3.1 |
| "socionext,uniphier-sd-v3.1.1" - IP version 3.1.1 |
| - reg: offset and length of the register set for the device. |
| - interrupts: a single interrupt specifier. |
| - clocks: a single clock specifier of the controller clock. |
| - reset-names: should contain the following: |
| "host" - mandatory for all versions |
| "bridge" - should exist only for "socionext,uniphier-sd-v2.91" |
| "hw" - should exist if eMMC hw reset line is available |
| - resets: a list of reset specifiers, corresponding to the reset-names |
| |
| Optional properties: |
| - pinctrl-names: if present, should contain the following: |
| "default" - should exist for all instances |
| "uhs" - should exist for SD instance with UHS support |
| - pinctrl-0: pin control state for the default mode |
| - pinctrl-1: pin control state for the UHS mode |
| - dma-names: should be "rx-tx" if present. |
| This property can exist only for "socionext,uniphier-sd-v2.91". |
| - dmas: a single DMA channel specifier |
| This property can exist only for "socionext,uniphier-sd-v2.91". |
| - bus-width: see mmc.txt |
| - cap-sd-highspeed: see mmc.txt |
| - cap-mmc-highspeed: see mmc.txt |
| - sd-uhs-sdr12: see mmc.txt |
| - sd-uhs-sdr25: see mmc.txt |
| - sd-uhs-sdr50: see mmc.txt |
| - cap-mmc-hw-reset: should exist if reset-names contains "hw". see mmc.txt |
| - non-removable: see mmc.txt |
| |
| Example: |
| |
| sd: sdhc@5a400000 { |
| compatible = "socionext,uniphier-sd-v2.91"; |
| reg = <0x5a400000 0x200>; |
| interrupts = <0 76 4>; |
| pinctrl-names = "default", "uhs"; |
| pinctrl-0 = <&pinctrl_sd>; |
| pinctrl-1 = <&pinctrl_sd_uhs>; |
| clocks = <&mio_clk 0>; |
| reset-names = "host", "bridge"; |
| resets = <&mio_rst 0>, <&mio_rst 3>; |
| dma-names = "rx-tx"; |
| dmas = <&dmac 4>; |
| bus-width = <4>; |
| cap-sd-highspeed; |
| sd-uhs-sdr12; |
| sd-uhs-sdr25; |
| sd-uhs-sdr50; |
| }; |
