mirror of https://gitee.com/openkylin/linux.git
88 lines
2.5 KiB
Plaintext
88 lines
2.5 KiB
Plaintext
Axis ARTPEC-6 Pin Controller
|
|
|
|
Required properties:
|
|
- compatible: "axis,artpec6-pinctrl".
|
|
- reg: Should contain the register physical address and length for the pin
|
|
controller.
|
|
|
|
A pinctrl node should contain at least one subnode representing the pinctrl
|
|
groups available on the machine. Each subnode will list the mux function
|
|
required and what pin group it will use. Each subnode will also configure the
|
|
drive strength and bias pullup of the pin group. If either of these options is
|
|
not set, its actual value will be unspecified.
|
|
|
|
|
|
Required subnode-properties:
|
|
- function: Function to mux.
|
|
- groups: Name of the pin group to use for the function above.
|
|
|
|
Available functions and groups (function: group0, group1...):
|
|
gpio: cpuclkoutgrp0, udlclkoutgrp0, i2c1grp0, i2c2grp0,
|
|
i2c3grp0, i2s0grp0, i2s1grp0, i2srefclkgrp0, spi0grp0,
|
|
spi1grp0, pciedebuggrp0, uart0grp0, uart0grp1, uart0grp2,
|
|
uart1grp0, uart1grp1, uart2grp0, uart2grp1, uart2grp2,
|
|
uart3grp0, uart4grp0, uart4grp1, uart5grp0, uart5grp1,
|
|
uart5nocts
|
|
cpuclkout: cpuclkoutgrp0
|
|
udlclkout: udlclkoutgrp0
|
|
i2c1: i2c1grp0
|
|
i2c2: i2c2grp0
|
|
i2c3: i2c3grp0
|
|
i2s0: i2s0grp0
|
|
i2s1: i2s1grp0
|
|
i2srefclk: i2srefclkgrp0
|
|
spi0: spi0grp0
|
|
spi1: spi1grp0
|
|
pciedebug: pciedebuggrp0
|
|
uart0: uart0grp0, uart0grp1, uart0grp2
|
|
uart1: uart1grp0, uart1grp1
|
|
uart2: uart2grp0, uart2grp1, uart2grp2
|
|
uart3: uart3grp0
|
|
uart4: uart4grp0, uart4grp1
|
|
uart5: uart5grp0, uart5grp1, uart5nocts
|
|
nand: nandgrp0
|
|
sdio0: sdio0grp0
|
|
sdio1: sdio1grp0
|
|
ethernet: ethernetgrp0
|
|
|
|
|
|
Optional subnode-properties (see pinctrl-bindings.txt):
|
|
- drive-strength: 4, 6, 8, 9 mA. For SD and NAND pins, this is for 3.3V VCCQ3.
|
|
- bias-pull-up
|
|
- bias-disable
|
|
|
|
Examples:
|
|
pinctrl@f801d000 {
|
|
compatible = "axis,artpec6-pinctrl";
|
|
reg = <0xf801d000 0x400>;
|
|
|
|
pinctrl_uart0: uart0grp {
|
|
function = "uart0";
|
|
groups = "uart0grp0";
|
|
drive-strength = <4>;
|
|
bias-pull-up;
|
|
};
|
|
pinctrl_uart3: uart3grp {
|
|
function = "uart3";
|
|
groups = "uart3grp0";
|
|
};
|
|
};
|
|
uart0: uart@f8036000 {
|
|
compatible = "arm,pl011", "arm,primecell";
|
|
reg = <0xf8036000 0x1000>;
|
|
interrupts = <0 104 IRQ_TYPE_LEVEL_HIGH>;
|
|
clocks = <&pll2div24>, <&apb_pclk>;
|
|
clock-names = "uart_clk", "apb_pclk";
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_uart0>;
|
|
};
|
|
uart3: uart@f8039000 {
|
|
compatible = "arm,pl011", "arm,primecell";
|
|
reg = <0xf8039000 0x1000>;
|
|
interrupts = <0 128 IRQ_TYPE_LEVEL_HIGH>;
|
|
clocks = <&pll2div24>, <&apb_pclk>;
|
|
clock-names = "uart_clk", "apb_pclk";
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_uart3>;
|
|
};
|