Kernel-4.18.0-80.el8_brcm,sdhci-iproc

Broadcom IPROC SDHCI controller

This file documents differences between the core properties described
by mmc.txt and the properties that represent the IPROC SDHCI controller.

Required properties:

• compatible : Should be one of the following

       "brcm,bcm2835-sdhci"
       "brcm,sdhci-iproc-cygnus"
       "brcm,sdhci-iproc"
  

Use brcm2835-sdhci for Rasperry PI.

Use sdhci-iproc-cygnus for Broadcom SDHCI Controllers
restricted to 32bit host accesses to SDHCI registers.

Use sdhci-iproc for Broadcom SDHCI Controllers that allow standard
8, 16, 32-bit host access to SDHCI register.

• clocks : The clock feeding the SDHCI controller.

Optional properties:

• sdhci,auto-cmd12: specifies that controller should use auto CMD12.

Example:

sdhci0: sdhci@18041000 {
compatible = “brcm,sdhci-iproc-cygnus”;
reg = <0x18041000 0x100>;
interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&lcpll0_clks BCM_CYGNUS_LCPLL0_SDIO_CLK>;
bus-width = <4>;
sdhci,auto-cmd12;
no-1-8-v;
};