1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
|
* Hisilicon 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.
Required properties:
- compatible : compatible list, contains one of the following -
"hisilicon,hi3660-ufs", "jedec,ufs-1.1" for hisi ufs
host controller present on Hi3660 chipset.
"hisilicon,hi3670-ufs", "jedec,ufs-2.1" for hisi ufs
host controller present on Hi3670 chipset.
- reg : should contain UFS register address space & UFS SYS CTRL register address,
- interrupts : interrupt number
- 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. "ref_clk", "phy_clk" is optional
- 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.
- resets : describe reset node register
- reset-names : reset node register, the "rst" corresponds to reset the whole UFS IP.
Example:
ufs: ufs@ff3b0000 {
compatible = "hisilicon,hi3660-ufs", "jedec,ufs-1.1";
/* 0: HCI standard */
/* 1: UFS SYS CTRL */
reg = <0x0 0xff3b0000 0x0 0x1000>,
<0x0 0xff3b1000 0x0 0x1000>;
interrupt-parent = <&gic>;
interrupts = <GIC_SPI 278 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&crg_ctrl HI3660_CLK_GATE_UFSIO_REF>,
<&crg_ctrl HI3660_CLK_GATE_UFSPHY_CFG>;
clock-names = "ref_clk", "phy_clk";
freq-table-hz = <0 0>, <0 0>;
/* offset: 0x84; bit: 12 */
resets = <&crg_rst 0x84 12>;
reset-names = "rst";
};
|
