tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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1Altera FPGA/HPS Bridge Driver
2
3Required properties:
4- regs : base address and size for AXI bridge module
5- compatible : Should contain one of:
6 "altr,socfpga-lwhps2fpga-bridge",
7 "altr,socfpga-hps2fpga-bridge", or
8 "altr,socfpga-fpga2hps-bridge"
9- resets : Phandle and reset specifier for this bridge's reset
10- clocks : Clocks used by this module.
11
12See Documentation/devicetree/bindings/fpga/fpga-bridge.txt for generic bindings.
13
14Example:
15 fpga_bridge0: fpga-bridge@ff400000 {
16 compatible = "altr,socfpga-lwhps2fpga-bridge";
17 reg = <0xff400000 0x100000>;
18 resets = <&rst LWHPS2FPGA_RESET>;
19 clocks = <&l4_main_clk>;
20 bridge-enable = <0>;
21 };
22
23 fpga_bridge1: fpga-bridge@ff500000 {
24 compatible = "altr,socfpga-hps2fpga-bridge";
25 reg = <0xff500000 0x10000>;
26 resets = <&rst HPS2FPGA_RESET>;
27 clocks = <&l4_main_clk>;
28 bridge-enable = <1>;
29 };
30
31 fpga_bridge2: fpga-bridge@ff600000 {
32 compatible = "altr,socfpga-fpga2hps-bridge";
33 reg = <0xff600000 0x100000>;
34 resets = <&rst FPGA2HPS_RESET>;
35 clocks = <&l4_main_clk>;
36 };