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* Mediatek Universal Flash Storage (UFS) Host Controller
UFS nodes are defined to describe on-chip UFS hardware macro.
Each UFS Host Controller should have its own node.
To bind UFS PHY with UFS host controller, the controller node should
contain a phandle reference to UFS M-PHY node.
Required properties for UFS nodes:
- compatible : Compatible list, contains the following controller:
"mediatek,mt8183-ufshci" for MediaTek UFS host controller
present on MT81xx chipsets.
- reg : Address and length of the UFS register set.
- phys : phandle to m-phy.
- clocks : List of phandle and clock specifier pairs.
- clock-names : List of clock input name strings sorted in the same
order as the clocks property. "ufs" is mandatory.
"ufs": ufshci core control clock.
- freq-table-hz : Array of <min max> operating frequencies stored in the same
order as the clocks property. If this property is not
defined or a value in the array is "0" then it is assumed
that the frequency is set by the parent clock or a
fixed rate clock source.
- vcc-supply : phandle to VCC supply regulator node.
Example:
ufsphy: phy@11fa0000 {
...
};
ufshci@11270000 {
compatible = "mediatek,mt8183-ufshci";
reg = <0 0x11270000 0 0x2300>;
interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_LOW>;
phys = <&ufsphy>;
clocks = <&infracfg_ao INFRACFG_AO_UFS_CG>;
clock-names = "ufs";
freq-table-hz = <0 0>;
vcc-supply = <&mt_pmic_vemc_ldo_reg>;
};
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