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| -rw-r--r-- | Documentation/devicetree/bindings/reset/zynq-reset.txt | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/reset/zynq-reset.txt b/Documentation/devicetree/bindings/reset/zynq-reset.txt new file mode 100644 index 000000000000..5860120e3064 --- /dev/null +++ b/Documentation/devicetree/bindings/reset/zynq-reset.txt @@ -0,0 +1,68 @@ +Xilinx Zynq Reset Manager + +The Zynq AP-SoC has several different resets. + +See Chapter 26 of the Zynq TRM (UG585) for more information about Zynq resets. + +Required properties: +- compatible: "xlnx,zynq-reset" +- reg: SLCR offset and size taken via syscon <0x200 0x48> +- syscon: <&slcr> + This should be a phandle to the Zynq's SLCR registers. +- #reset-cells: Must be 1 + +The Zynq Reset Manager needs to be a childnode of the SLCR. + +Example: + rstc: rstc@200 { + compatible = "xlnx,zynq-reset"; + reg = <0x200 0x48>; + #reset-cells = <1>; + syscon = <&slcr>; + }; + +Reset outputs: + 0 : soft reset + 32 : ddr reset + 64 : topsw reset + 96 : dmac reset + 128: usb0 reset + 129: usb1 reset + 160: gem0 reset + 161: gem1 reset + 164: gem0 rx reset + 165: gem1 rx reset + 166: gem0 ref reset + 167: gem1 ref reset + 192: sdio0 reset + 193: sdio1 reset + 196: sdio0 ref reset + 197: sdio1 ref reset + 224: spi0 reset + 225: spi1 reset + 226: spi0 ref reset + 227: spi1 ref reset + 256: can0 reset + 257: can1 reset + 258: can0 ref reset + 259: can1 ref reset + 288: i2c0 reset + 289: i2c1 reset + 320: uart0 reset + 321: uart1 reset + 322: uart0 ref reset + 323: uart1 ref reset + 352: gpio reset + 384: lqspi reset + 385: qspi ref reset + 416: smc reset + 417: smc ref reset + 448: ocm reset + 512: fpga0 out reset + 513: fpga1 out reset + 514: fpga2 out reset + 515: fpga3 out reset + 544: a9 reset 0 + 545: a9 reset 1 + 552: peri reset + |