xref: /freebsd/sys/contrib/device-tree/Bindings/mmc/brcm,sdhci-brcmstb.txt (revision 924226fba12cc9a228c73b956e1b7fa24c60b055)
1* BROADCOM BRCMSTB/BMIPS SDHCI Controller
2
3This file documents differences between the core properties in mmc.txt
4and the properties used by the sdhci-brcmstb driver.
5
6NOTE: The driver disables all UHS speed modes by default and depends
7on Device Tree properties to enable them for SoC/Board combinations
8that support them.
9
10Required properties:
11- compatible: should be one of the following
12  - "brcm,bcm7425-sdhci"
13  - "brcm,bcm7445-sdhci"
14  - "brcm,bcm7216-sdhci"
15
16Refer to clocks/clock-bindings.txt for generic clock consumer properties.
17
18Example:
19
20	sdhci@84b0000 {
21		sd-uhs-sdr50;
22		sd-uhs-ddr50;
23		sd-uhs-sdr104;
24		sdhci,auto-cmd12;
25		compatible = "brcm,bcm7216-sdhci",
26			   "brcm,bcm7445-sdhci",
27			   "brcm,sdhci-brcmstb";
28		reg = <0x84b0000 0x260 0x84b0300 0x200>;
29		reg-names = "host", "cfg";
30		interrupts = <0x0 0x26 0x4>;
31		interrupt-names = "sdio0_0";
32		clocks = <&scmi_clk 245>;
33		clock-names = "sw_sdio";
34	};
35
36	sdhci@84b1000 {
37		mmc-ddr-1_8v;
38		mmc-hs200-1_8v;
39		mmc-hs400-1_8v;
40		mmc-hs400-enhanced-strobe;
41		supports-cqe;
42		non-removable;
43		bus-width = <0x8>;
44		compatible = "brcm,bcm7216-sdhci",
45			   "brcm,bcm7445-sdhci",
46			   "brcm,sdhci-brcmstb";
47		reg = <0x84b1000 0x260 0x84b1300 0x200>;
48		reg-names = "host", "cfg";
49		interrupts = <0x0 0x27 0x4>;
50		interrupt-names = "sdio1_0";
51		clocks = <&scmi_clk 245>;
52		clock-names = "sw_sdio";
53	};
54