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,sdhci-iproc-cygnus"
  10                "brcm,sdhci-iproc"
  11
  12 Use brcm2835-sdhci for Rasperry PI.
  13
  14 Use sdhci-iproc-cygnus for Broadcom SDHCI Controllers
  15 restricted to 32bit host accesses to SDHCI registers.
  16
  17 Use sdhci-iproc for Broadcom SDHCI Controllers that allow standard
  18 8, 16, 32-bit host access to SDHCI register.
  19
  20 - clocks : The clock feeding the SDHCI controller.
  21
  22 Optional properties:
  23   - sdhci,auto-cmd12: specifies that controller should use auto CMD12.
  24
  25 Example:
  26
  27 sdhci0: sdhci@0x18041000 {
  28         compatible = "brcm,sdhci-iproc-cygnus";
  29         reg = <0x18041000 0x100>;
  30         interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
  31         clocks = <&lcpll0_clks BCM_CYGNUS_LCPLL0_SDIO_CLK>;
  32         bus-width = <4>;
  33         sdhci,auto-cmd12;
  34         no-1-8-v;
  35 };