1 * Marvell sdhci-pxa v2/v3 controller
3 This file documents differences between the core properties in mmc.txt
4 and the properties used by the sdhci-pxav2 and sdhci-pxav3 drivers.
7 - compatible: Should be "mrvl,pxav2-mmc", "mrvl,pxav3-mmc" or
8 "marvell,armada-380-sdhci".
10 * for "mrvl,pxav2-mmc" and "mrvl,pxav3-mmc", one register area for
13 * for "marvell,armada-380-sdhci", three register areas. The first
14 one for the SDHCI registers themselves, the second one for the
15 AXI/Mbus bridge registers of the SDHCI unit, the third one for the
16 SDIO3 Configuration register
17 - reg names: should be "sdhci", "mbus", "conf-sdio3". only mandatory
18 for "marvell,armada-380-sdhci"
19 - clocks: Array of clocks required for SDHCI; requires at least one for
21 - clock-names: Array of names corresponding to clocks property; shall be
22 "io" for I/O clock and "core" for optional core clock.
25 - mrvl,clk-delay-cycles: Specify a number of cycles to delay for tuning.
30 compatible = "mrvl,pxav3-mmc";
31 reg = <0xd4280800 0x800>;
34 clocks = <&chip CLKID_SDIO1XIN>, <&chip CLKID_SDIO1>;
35 clock-names = "io", "core";
37 mrvl,clk-delay-cycles = <31>;
41 compatible = "marvell,armada-380-sdhci";
42 reg-names = "sdhci", "mbus", "conf-sdio3";
43 reg = <0xd8000 0x1000>,
46 interrupts = <0 25 0x4>;
47 clocks = <&gateclk 17>;
49 mrvl,clk-delay-cycles = <0x1F>;