| 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,bcm2711-emmc2" |
| "brcm,sdhci-iproc-cygnus" |
| "brcm,sdhci-iproc" |
| |
| Use brcm2835-sdhci for the eMMC controller on the BCM2835 (Raspberry Pi) and |
| bcm2711-emmc2 for the additional eMMC2 controller on BCM2711. |
| |
| 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; |
| }; |
