Documentation/devicetree/bindings/mmc/brcm,sdhci-iproc.txt

   1 Broadcom IPROC SDHCI controller
   2
   3 This file documents differences between the core properties described
   4 by mmc.txt and the properties that represent the IPROC SDHCI controller.
   5
   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"
  12
  13 Use brcm2835-sdhci for the eMMC controller on the BCM2835 (Raspberry Pi) and
  14 bcm2711-emmc2 for the additional eMMC2 controller on BCM2711.
  15
  16 Use sdhci-iproc-cygnus for Broadcom SDHCI Controllers
  17 restricted to 32bit host accesses to SDHCI registers.
  18
  19 Use sdhci-iproc for Broadcom SDHCI Controllers that allow standard
  20 8, 16, 32-bit host access to SDHCI register.
  21
  22 - clocks : The clock feeding the SDHCI controller.
  23
  24 Optional properties:
  25   - sdhci,auto-cmd12: specifies that controller should use auto CMD12.
  26
  27 Example:
  28
  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;
  37 };