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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt')
-rw-r--r-- | Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt new file mode 100644 index 000000000..2df4bddeb --- /dev/null +++ b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt @@ -0,0 +1,44 @@ +Hisilicon System Reset Controller +====================================== + +Please also refer to reset.txt in this directory for common reset +controller binding usage. + +The reset controller registers are part of the system-ctl block on +hi3660 and hi3670 SoCs. + +Required properties: +- compatible: should be one of the following: + "hisilicon,hi3660-reset" for HI3660 + "hisilicon,hi3670-reset", "hisilicon,hi3660-reset" for HI3670 +- hisi,rst-syscon: phandle of the reset's syscon. +- #reset-cells : Specifies the number of cells needed to encode a + reset source. The type shall be a <u32> and the value shall be 2. + + Cell #1 : offset of the reset assert control + register from the syscon register base + offset + 4: deassert control register + offset + 8: status control register + Cell #2 : bit position of the reset in the reset control register + +Example: + iomcu: iomcu@ffd7e000 { + compatible = "hisilicon,hi3660-iomcu", "syscon"; + reg = <0x0 0xffd7e000 0x0 0x1000>; + }; + + iomcu_rst: iomcu_rst_controller { + compatible = "hisilicon,hi3660-reset"; + hisi,rst-syscon = <&iomcu>; + #reset-cells = <2>; + }; + +Specifying reset lines connected to IP modules +============================================== +example: + + i2c0: i2c@..... { + ... + resets = <&iomcu_rst 0x20 3>; /* offset: 0x20; bit: 3 */ + ... + }; |