tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1SMI (Smart Multimedia Interface) Local Arbiter
2
3The hardware block diagram please check bindings/iommu/mediatek,iommu.txt
4
5Required properties:
6- compatible : must be "mediatek,mt8173-smi-larb"
7- reg : the register and size of this local arbiter.
8- mediatek,smi : a phandle to the smi_common node.
9- power-domains : a phandle to the power domain of this local arbiter.
10- clocks : Must contain an entry for each entry in clock-names.
11- clock-names: must contain 2 entries, as follows:
12 - "apb" : Advanced Peripheral Bus clock, It's the clock for setting
13 the register.
14 - "smi" : It's the clock for transfer data and command.
15
16Example:
17 larb1: larb@16010000 {
18 compatible = "mediatek,mt8173-smi-larb";
19 reg = <0 0x16010000 0 0x1000>;
20 mediatek,smi = <&smi_common>;
21 power-domains = <&scpsys MT8173_POWER_DOMAIN_VDEC>;
22 clocks = <&vdecsys CLK_VDEC_CKEN>,
23 <&vdecsys CLK_VDEC_LARB_CKEN>;
24 clock-names = "apb", "smi";
25 };