| * Marvell sdhci-pxa v2/v3 controller |
| |
| This file documents differences between the core properties in mmc.txt |
| and the properties used by the sdhci-pxav2 and sdhci-pxav3 drivers. |
| |
| Required properties: |
| - compatible: Should be "mrvl,pxav2-mmc", "mrvl,pxav3-mmc" or |
| "marvell,armada-380-sdhci". |
| - reg: |
| * for "mrvl,pxav2-mmc" and "mrvl,pxav3-mmc", one register area for |
| the SDHCI registers. |
| * for "marvell,armada-380-sdhci", two register areas. The first one |
| for the SDHCI registers themselves, and the second one for the |
| AXI/Mbus bridge registers of the SDHCI unit. |
| |
| Optional properties: |
| - mrvl,clk-delay-cycles: Specify a number of cycles to delay for tuning. |
| |
| Example: |
| |
| sdhci@d4280800 { |
| compatible = "mrvl,pxav3-mmc"; |
| reg = <0xd4280800 0x800>; |
| bus-width = <8>; |
| interrupts = <27>; |
| non-removable; |
| mrvl,clk-delay-cycles = <31>; |
| }; |
| |
| sdhci@d8000 { |
| compatible = "marvell,armada-380-sdhci"; |
| reg = <0xd8000 0x1000>, <0xdc000 0x100>; |
| interrupts = <0 25 0x4>; |
| clocks = <&gateclk 17>; |
| mrvl,clk-delay-cycles = <0x1F>; |
| }; |
