WIP FPC-III support
[linux/fpc-iii.git] / Documentation / devicetree / bindings / mmc / brcm,sdhci-iproc.txt
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1 Broadcom IPROC SDHCI controller
3 This file documents differences between the core properties described
4 by mmc.txt and the properties that represent the IPROC SDHCI controller.
6 Required 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"
13 Use brcm2835-sdhci for the eMMC controller on the BCM2835 (Raspberry Pi) and
14 bcm2711-emmc2 for the additional eMMC2 controller on BCM2711.
16 Use sdhci-iproc-cygnus for Broadcom SDHCI Controllers
17 restricted to 32bit host accesses to SDHCI registers.
19 Use sdhci-iproc for Broadcom SDHCI Controllers that allow standard
20 8, 16, 32-bit host access to SDHCI register.
22 - clocks : The clock feeding the SDHCI controller.
24 Optional properties:
25   - sdhci,auto-cmd12: specifies that controller should use auto CMD12.
27 Example:
29 sdhci0: 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;