1*4882a593SmuzhiyunTexas Instruments TI-SCI Clocks 2*4882a593Smuzhiyun=============================== 3*4882a593Smuzhiyun 4*4882a593SmuzhiyunAll clocks on Texas Instruments' SoCs that contain a System Controller, 5*4882a593Smuzhiyunare only controlled by this entity. Communication between a host processor 6*4882a593Smuzhiyunrunning an OS and the System Controller happens through a protocol known 7*4882a593Smuzhiyunas TI-SCI[1]. This clock implementation plugs into the common clock 8*4882a593Smuzhiyunframework and makes use of the TI-SCI protocol on clock API requests. 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun[1] Documentation/devicetree/bindings/arm/keystone/ti,sci.txt 11*4882a593Smuzhiyun 12*4882a593SmuzhiyunRequired properties: 13*4882a593Smuzhiyun------------------- 14*4882a593Smuzhiyun- compatible: Must be "ti,k2g-sci-clk" 15*4882a593Smuzhiyun- #clock-cells: Shall be 2. 16*4882a593Smuzhiyun In clock consumers, this cell represents the device ID and clock ID 17*4882a593Smuzhiyun exposed by the PM firmware. The list of valid values for the device IDs 18*4882a593Smuzhiyun and clocks IDs for 66AK2G SoC are documented at 19*4882a593Smuzhiyun http://processors.wiki.ti.com/index.php/TISCI#66AK2G02_Data 20*4882a593Smuzhiyun 21*4882a593SmuzhiyunExamples: 22*4882a593Smuzhiyun-------- 23*4882a593Smuzhiyun 24*4882a593Smuzhiyunpmmc: pmmc { 25*4882a593Smuzhiyun compatible = "ti,k2g-sci"; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun k2g_clks: clocks { 28*4882a593Smuzhiyun compatible = "ti,k2g-sci-clk"; 29*4882a593Smuzhiyun #clock-cells = <2>; 30*4882a593Smuzhiyun }; 31*4882a593Smuzhiyun}; 32*4882a593Smuzhiyun 33*4882a593Smuzhiyunuart0: serial@2530c00 { 34*4882a593Smuzhiyun compatible = "ns16550a"; 35*4882a593Smuzhiyun clocks = <&k2g_clks 0x2c 0>; 36*4882a593Smuzhiyun}; 37