1 Binding for Xilinx Zynq Pinctrl
4 - compatible: "xlnx,zynq-pinctrl"
5 - syscon: phandle to SLCR
6 - reg: Offset and length of pinctrl space in SLCR
8 Please refer to pinctrl-bindings.txt in this directory for details of the
9 common pinctrl bindings used by client devices, including the meaning of the
10 phrase "pin configuration node".
12 Zynq's pin configuration nodes act as a container for an arbitrary number of
13 subnodes. Each of these subnodes represents some desired configuration for a
14 pin, a group, or a list of pins or groups. This configuration can include the
15 mux function to select on those pin(s)/group(s), and various pin configuration
16 parameters, such as pull-up, slew rate, etc.
18 Each configuration node can consist of multiple nodes describing the pinmux and
19 pinconf options. Those nodes can be pinmux nodes or pinconf nodes.
21 The name of each subnode is not important; all subnodes should be enumerated
22 and processed purely based on their content.
24 Required properties for pinmux nodes are:
25 - groups: A list of pinmux groups.
26 - function: The name of a pinmux function to activate for the specified set
29 Required properties for configuration nodes:
31 - pins: a list of pin names
32 - groups: A list of pinmux groups.
34 The following generic properties as defined in pinctrl-bindings.txt are valid
35 to specify in a pinmux subnode:
38 The following generic properties as defined in pinctrl-bindings.txt are valid
39 to specify in a pinconf subnode:
40 groups, pins, bias-disable, bias-high-impedance, bias-pull-up, slew-rate,
41 low-power-disable, low-power-enable
43 Valid arguments for 'slew-rate' are '0' and '1' to select between slow and fast
46 Valid values for groups are:
47 ethernet0_0_grp, ethernet1_0_grp, mdio0_0_grp, mdio1_0_grp,
48 qspi0_0_grp, qspi1_0_grp, qspi_fbclk, qspi_cs1_grp, spi0_0_grp - spi0_2_grp,
49 spi0_X_ssY (X=0..2, Y=0..2), spi1_0_grp - spi1_3_grp,
50 spi1_X_ssY (X=0..3, Y=0..2), sdio0_0_grp - sdio0_2_grp,
51 sdio1_0_grp - sdio1_3_grp, sdio0_emio_wp, sdio0_emio_cd, sdio1_emio_wp,
52 sdio1_emio_cd, smc0_nor, smc0_nor_cs1_grp, smc0_nor_addr25_grp, smc0_nand,
53 can0_0_grp - can0_10_grp, can1_0_grp - can1_11_grp, uart0_0_grp - uart0_10_grp,
54 uart1_0_grp - uart1_11_grp, i2c0_0_grp - i2c0_10_grp, i2c1_0_grp - i2c1_10_grp,
55 ttc0_0_grp - ttc0_2_grp, ttc1_0_grp - ttc1_2_grp, swdt0_0_grp - swdt0_4_grp,
56 gpio0_0_grp - gpio0_53_grp, usb0_0_grp, usb1_0_grp
58 Valid values for pins are:
61 Valid values for function are:
62 ethernet0, ethernet1, mdio0, mdio1, qspi0, qspi1, qspi_fbclk, qspi_cs1,
63 spi0, spi0_ss, spi1, spi1_ss, sdio0, sdio0_pc, sdio0_cd, sdio0_wp,
64 sdio1, sdio1_pc, sdio1_cd, sdio1_wp,
65 smc0_nor, smc0_nor_cs1, smc0_nor_addr25, smc0_nand, can0, can1, uart0, uart1,
66 i2c0, i2c1, ttc0, ttc1, swdt0, gpio0, usb0, usb1
68 The following driver-specific properties as defined here are valid to specify in
69 a pin configuration subnode:
70 - io-standard: Configure the pin to use the selected IO standard according to
78 pinctrl0: pinctrl@700 {
79 compatible = "xlnx,pinctrl-zynq";
83 pinctrl_uart1_default: uart1-default {
85 groups = "uart1_10_grp";
90 groups = "uart1_10_grp";