1Broadcom IPROC SDHCI controller
2
3This file documents differences between the core properties described
4by mmc.txt and the properties that represent the IPROC SDHCI controller.
5
6Required properties:
7- compatible : Should be one of the following
8	       "brcm,bcm2835-sdhci"
9	       "brcm,bcm2711-emmc2"
10	       "brcm,sdhci-iproc-cygnus"
11	       "brcm,sdhci-iproc"
12
13Use brcm2835-sdhci for the eMMC controller on the BCM2835 (Raspberry Pi) and
14bcm2711-emmc2 for the additional eMMC2 controller on BCM2711.
15
16Use sdhci-iproc-cygnus for Broadcom SDHCI Controllers
17restricted to 32bit host accesses to SDHCI registers.
18
19Use sdhci-iproc for Broadcom SDHCI Controllers that allow standard
208, 16, 32-bit host access to SDHCI register.
21
22- clocks : The clock feeding the SDHCI controller.
23
24Optional properties:
25  - sdhci,auto-cmd12: specifies that controller should use auto CMD12.
26
27Example:
28
29sdhci0: sdhci@18041000 {
30	compatible = "brcm,sdhci-iproc-cygnus";
31	reg = <0x18041000 0x100>;
32	interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
33	clocks = <&lcpll0_clks BCM_CYGNUS_LCPLL0_SDIO_CLK>;
34	bus-width = <4>;
35	sdhci,auto-cmd12;
36	no-1-8-v;
37};
38