bindings/net/gpmc-eth.txt

1 Device tree bindings for Ethernet chip connected to TI GPMC
5 such as ethernet controllers to processors using the TI GPMC as a data bus.
7 Ethernet controllers connected to TI GPMC are represented as child nodes of
8 the GPMC controller with an "ethernet" name.
10 All timing relevant properties as well as generic GPMC child properties are
12 Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
14 For the properties relevant to the ethernet controller connected to the GPMC
18 Child nodes need to specify the GPMC bus address width using the "bank-width"
20 specify the I/O registers address width. Even when the GPMC has a maximum 16-bit
22 For example with an SMSC LAN911x/912x controller connected to the TI GPMC on an
26 - bank-width: 		Address width of the device in bytes. GPMC supports 8-bit
29 - gpmc,cs-on-ns:	Chip-select assertion time
30 - gpmc,cs-rd-off-ns:	Chip-select de-assertion time for reads
31 - gpmc,cs-wr-off-ns:	Chip-select de-assertion time for writes
32 - gpmc,oe-on-ns:	Output-enable assertion time
33 - gpmc,oe-off-ns:	Output-enable de-assertion time
34 - gpmc,we-on-ns:	Write-enable assertion time
35 - gpmc,we-off-ns:	Write-enable de-assertion time
36 - gpmc,access-ns:	Start cycle to first data capture (read access)
37 - gpmc,rd-cycle-ns:	Total read cycle time
38 - gpmc,wr-cycle-ns:	Total write cycle time
45 - gpmc,XXX		Additional GPMC timings and settings parameters. See
46 			Documentation/devicetree/bindings/memory-controllers/omap-gpmc.txt
50 gpmc: gpmc@6e000000 {
51 	compatible = "ti,omap3430-gpmc";
52 	ti,hwmods = "gpmc";
55 	gpmc,num-cs = <8>;
56 	gpmc,num-waitpins = <4>;
67 		gpmc,mux-add-data;
68 		gpmc,cs-on-ns = <0>;
69 		gpmc,cs-rd-off-ns = <186>;
70 		gpmc,cs-wr-off-ns = <186>;
71 		gpmc,adv-on-ns = <12>;
72 		gpmc,adv-rd-off-ns = <48>;
73 		gpmc,adv-wr-off-ns = <48>;
74 		gpmc,oe-on-ns = <54>;
75 		gpmc,oe-off-ns = <168>;
76 		gpmc,we-on-ns = <54>;
77 		gpmc,we-off-ns = <168>;
78 		gpmc,rd-cycle-ns = <186>;
79 		gpmc,wr-cycle-ns = <186>;
80 		gpmc,access-ns = <114>;
81 		gpmc,page-burst-access-ns = <6>;
82 		gpmc,bus-turnaround-ns = <12>;
83 		gpmc,cycle2cycle-delay-ns = <18>;
84 		gpmc,wr-data-mux-bus-ns = <90>;
85 		gpmc,wr-access-ns = <186>;
86 		gpmc,cycle2cycle-samecsen;
87 		gpmc,cycle2cycle-diffcsen;