1*4882a593SmuzhiyunBroadcom IPROC SDHCI controller 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunThis file documents differences between the core properties described 4*4882a593Smuzhiyunby mmc.txt and the properties that represent the IPROC SDHCI controller. 5*4882a593Smuzhiyun 6*4882a593SmuzhiyunRequired properties: 7*4882a593Smuzhiyun- compatible : Should be one of the following 8*4882a593Smuzhiyun "brcm,bcm2835-sdhci" 9*4882a593Smuzhiyun "brcm,bcm2711-emmc2" 10*4882a593Smuzhiyun "brcm,sdhci-iproc-cygnus" 11*4882a593Smuzhiyun "brcm,sdhci-iproc" 12*4882a593Smuzhiyun 13*4882a593SmuzhiyunUse brcm2835-sdhci for the eMMC controller on the BCM2835 (Raspberry Pi) and 14*4882a593Smuzhiyunbcm2711-emmc2 for the additional eMMC2 controller on BCM2711. 15*4882a593Smuzhiyun 16*4882a593SmuzhiyunUse sdhci-iproc-cygnus for Broadcom SDHCI Controllers 17*4882a593Smuzhiyunrestricted to 32bit host accesses to SDHCI registers. 18*4882a593Smuzhiyun 19*4882a593SmuzhiyunUse sdhci-iproc for Broadcom SDHCI Controllers that allow standard 20*4882a593Smuzhiyun8, 16, 32-bit host access to SDHCI register. 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun- clocks : The clock feeding the SDHCI controller. 23*4882a593Smuzhiyun 24*4882a593SmuzhiyunOptional properties: 25*4882a593Smuzhiyun - sdhci,auto-cmd12: specifies that controller should use auto CMD12. 26*4882a593Smuzhiyun 27*4882a593SmuzhiyunExample: 28*4882a593Smuzhiyun 29*4882a593Smuzhiyunsdhci0: sdhci@18041000 { 30*4882a593Smuzhiyun compatible = "brcm,sdhci-iproc-cygnus"; 31*4882a593Smuzhiyun reg = <0x18041000 0x100>; 32*4882a593Smuzhiyun interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>; 33*4882a593Smuzhiyun clocks = <&lcpll0_clks BCM_CYGNUS_LCPLL0_SDIO_CLK>; 34*4882a593Smuzhiyun bus-width = <4>; 35*4882a593Smuzhiyun sdhci,auto-cmd12; 36*4882a593Smuzhiyun no-1-8-v; 37*4882a593Smuzhiyun}; 38