1 Abilis Systems TB10x pin controller
2 ===================================
3
4 Required properties
5 -------------------
6
7 - compatible: should be "abilis,tb10x-iomux";
8 - reg: should contain the physical address and
9 register range.
10
11
12 Function definitions
13 --------------------
14
15 Functions are defined (and referenced) by sub-
16 Every sub-node defines exactly one function (i
17 Every function is associated to one named pin
18 driver and these names are used to associate p
19 controller sub-nodes.
20
21 Required function definition subnode propertie
22 - abilis,function: should be set to the name
23
24 The following pin groups are available:
25 - GPIO ports: gpioa, gpiob, gpioc, gpiod, gp
26 gpioh, gpioi, gpioj, gpiok, gp
27 - Serial TS input ports: mis0, mis1, mis2, m
28 - Parallel TS input ports: mip1, mip3, mip5,
29 - Serial TS output ports: mos0, mos1, mos2,
30 - Parallel TS output port: mop
31 - CI+ port: ciplus
32 - CableCard (Mcard) port: mcard
33 - Smart card ports: stc0, stc1
34 - UART ports: uart0, uart1
35 - SPI ports: spi1, spi3
36 - JTAG: jtag
37
38 All other ports of the chip are not multiplexe
39 driver.
40
41
42 GPIO ranges definition
43 ----------------------
44
45 The named pin groups of GPIO ports can be used
46 explained in Documentation/devicetree/bindings
47
48
49 Example
50 -------
51
52 iomux: iomux@ff10601c {
53 compatible = "abilis,tb10x-iomux";
54 reg = <0xFF10601c 0x4>;
55 pctl_gpio_a: pctl-gpio-a {
56 abilis,function = "gpioa";
57 };
58 pctl_uart0: pctl-uart0 {
59 abilis,function = "uart0";
60 };
61 };
62 uart@ff100000 {
63 compatible = "snps,dw-apb-uart";
64 reg = <0xFF100000 0x100>;
65 clock-frequency = <166666666>;
66 interrupts = <25 1>;
67 reg-shift = <2>;
68 reg-io-width = <4>;
69 pinctrl-names = "default";
70 pinctrl-0 = <&pctl_uart0>;
71 };
72 gpioa: gpio@ff140000 {
73 compatible = "abilis,tb10x-gpio";
74 reg = <0xFF140000 0x1000>;
75 gpio-controller;
76 #gpio-cells = <2>;
77 ngpio = <3>;
78 gpio-ranges = <&iomux 0 0>;
79 gpio-ranges-group-names = "gpioa";
80 };
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