1 Actions Semi S900 Pin Controller
3 This binding describes the pin controller found in the S900 SoC.
7 - compatible: Should be "actions,s900-pinctrl"
8 - reg: Should contain the register base address and size of
10 - clocks: phandle of the clock feeding the pin controller
11 - gpio-controller: Marks the device node as a GPIO controller.
12 - gpio-ranges: Specifies the mapping between gpio controller and
14 - #gpio-cells: Should be two. The first cell is the gpio pin number
15 and the second cell is used for optional parameters.
16 - interrupt-controller: Marks the device node as an interrupt controller.
17 - #interrupt-cells: Specifies the number of cells needed to encode an
18 interrupt. Shall be set to 2. The first cell
19 defines the interrupt number, the second encodes
20 the trigger flags described in
21 bindings/interrupt-controller/interrupts.txt
23 Please refer to pinctrl-bindings.txt in this directory for details of the
24 common pinctrl bindings used by client devices, including the meaning of the
25 phrase "pin configuration node".
27 The pin configuration nodes act as a container for an arbitrary number of
28 subnodes. Each of these subnodes represents some desired configuration for a
29 pin, a group, or a list of pins or groups. This configuration can include the
30 mux function to select on those group(s), and various pin configuration
31 parameters, such as pull-up, drive strength, etc.
33 PIN CONFIGURATION NODES:
35 The name of each subnode is not important; all subnodes should be enumerated
36 and processed purely based on their content.
38 Each subnode only affects those parameters that are explicitly listed. In
39 other words, a subnode that lists a mux function but no pin configuration
40 parameters implies no information about any pin configuration parameters.
41 Similarly, a pin subnode that describes a pullup parameter implies no
42 information about e.g. the mux function.
44 Pinmux functions are available only for the pin groups while pinconf
45 parameters are available for both pin groups and individual pins.
47 The following generic properties as defined in pinctrl-bindings.txt are valid
48 to specify in a pin configuration subnode:
52 - pins: An array of strings, each string containing the name of a pin.
53 These pins are used for selecting the pull control and schmitt
54 trigger parameters. The following are the list of pins
57 eth_txd0, eth_txd1, eth_txen, eth_rxer, eth_crs_dv,
58 eth_rxd1, eth_rxd0, eth_ref_clk, eth_mdc, eth_mdio,
59 sirq0, sirq1, sirq2, i2s_d0, i2s_bclk0, i2s_lrclk0,
60 i2s_mclk0, i2s_d1, i2s_bclk1, i2s_lrclk1, i2s_mclk1,
61 pcm1_in, pcm1_clk, pcm1_sync, pcm1_out, eram_a5,
62 eram_a6, eram_a7, eram_a8, eram_a9, eram_a10, eram_a11,
63 lvds_oep, lvds_oen, lvds_odp, lvds_odn, lvds_ocp,
64 lvds_ocn, lvds_obp, lvds_obn, lvds_oap, lvds_oan,
65 lvds_eep, lvds_een, lvds_edp, lvds_edn, lvds_ecp,
66 lvds_ecn, lvds_ebp, lvds_ebn, lvds_eap, lvds_ean,
67 sd0_d0, sd0_d1, sd0_d2, sd0_d3, sd1_d0, sd1_d1,
68 sd1_d2, sd1_d3, sd0_cmd, sd0_clk, sd1_cmd, sd1_clk,
69 spi0_sclk, spi0_ss, spi0_miso, spi0_mosi, uart0_rx,
70 uart0_tx, uart2_rx, uart2_tx, uart2_rtsb, uart2_ctsb,
71 uart3_rx, uart3_tx, uart3_rtsb, uart3_ctsb, uart4_rx,
72 uart4_tx, i2c0_sclk, i2c0_sdata, i2c1_sclk, i2c1_sdata,
73 i2c2_sclk, i2c2_sdata, csi0_dn0, csi0_dp0, csi0_dn1,
74 csi0_dp1, csi0_cn, csi0_cp, csi0_dn2, csi0_dp2, csi0_dn3,
75 csi0_dp3, dsi_dp3, dsi_dn3, dsi_dp1, dsi_dn1, dsi_cp,
76 dsi_cn, dsi_dp0, dsi_dn0, dsi_dp2, dsi_dn2, sensor0_pclk,
77 csi1_dn0,csi1_dp0,csi1_dn1, csi1_dp1, csi1_cn, csi1_cp,
78 sensor0_ckout, nand0_d0, nand0_d1, nand0_d2, nand0_d3,
79 nand0_d4, nand0_d5, nand0_d6, nand0_d7, nand0_dqs,
80 nand0_dqsn, nand0_ale, nand0_cle, nand0_ceb0, nand0_ceb1,
81 nand0_ceb2, nand0_ceb3, nand1_d0, nand1_d1, nand1_d2,
82 nand1_d3, nand1_d4, nand1_d5, nand1_d6, nand1_d7, nand1_dqs,
83 nand1_dqsn, nand1_ale, nand1_cle, nand1_ceb0, nand1_ceb1,
84 nand1_ceb2, nand1_ceb3, sgpio0, sgpio1, sgpio2, sgpio3
86 - groups: An array of strings, each string containing the name of a pin
87 group. These pin groups are used for selecting the pinmux
90 lvds_oxx_uart4_mfp, rmii_mdc_mfp, rmii_mdio_mfp, sirq0_mfp,
91 sirq1_mfp, rmii_txd0_mfp, rmii_txd1_mfp, rmii_txen_mfp,
92 rmii_rxer_mfp, rmii_crs_dv_mfp, rmii_rxd1_mfp, rmii_rxd0_mfp,
93 rmii_ref_clk_mfp, i2s_d0_mfp, i2s_d1_mfp, i2s_lr_m_clk0_mfp,
94 i2s_bclk0_mfp, i2s_bclk1_mclk1_mfp, pcm1_in_out_mfp,
95 pcm1_clk_mfp, pcm1_sync_mfp, eram_a5_mfp, eram_a6_mfp,
96 eram_a7_mfp, eram_a8_mfp, eram_a9_mfp, eram_a10_mfp,
97 eram_a11_mfp, lvds_oep_odn_mfp, lvds_ocp_obn_mfp,
98 lvds_oap_oan_mfp, lvds_e_mfp, spi0_sclk_mosi_mfp, spi0_ss_mfp,
99 spi0_miso_mfp, uart2_rtsb_mfp, uart2_ctsb_mfp, uart3_rtsb_mfp,
100 uart3_ctsb_mfp, sd0_d0_mfp, sd0_d1_mfp, sd0_d2_d3_mfp,
101 sd1_d0_d3_mfp, sd0_cmd_mfp, sd0_clk_mfp, sd1_cmd_clk_mfp,
102 uart0_rx_mfp, nand0_d0_ceb3_mfp, uart0_tx_mfp, i2c0_mfp,
103 csi0_cn_cp_mfp, csi0_dn0_dp3_mfp, csi1_dn0_cp_mfp,
104 dsi_dp3_dn1_mfp, dsi_cp_dn0_mfp, dsi_dp2_dn2_mfp,
105 nand1_d0_ceb1_mfp, nand1_ceb3_mfp, nand1_ceb0_mfp,
106 csi1_dn0_dp0_mfp, uart4_rx_tx_mfp
109 These pin groups are used for selecting the drive strength
112 sgpio3_drv, sgpio2_drv, sgpio1_drv, sgpio0_drv,
113 rmii_tx_d0_d1_drv, rmii_txen_rxer_drv, rmii_crs_dv_drv,
114 rmii_rx_d1_d0_drv, rmii_ref_clk_drv, rmii_mdc_mdio_drv,
115 sirq_0_1_drv, sirq2_drv, i2s_d0_d1_drv, i2s_lr_m_clk0_drv,
116 i2s_blk1_mclk1_drv, pcm1_in_out_drv, lvds_oap_oan_drv,
117 lvds_oep_odn_drv, lvds_ocp_obn_drv, lvds_e_drv, sd0_d3_d0_drv,
118 sd1_d3_d0_drv, sd0_sd1_cmd_clk_drv, spi0_sclk_mosi_drv,
119 spi0_ss_miso_drv, uart0_rx_tx_drv, uart4_rx_tx_drv, uart2_drv,
120 uart3_drv, i2c0_drv, i2c1_drv, i2c2_drv, sensor0_drv
122 These pin groups are used for selecting the slew rate
125 sgpio3_sr, sgpio2_sr, sgpio1_sr, sgpio0_sr, rmii_tx_d0_d1_sr,
126 rmii_txen_rxer_sr, rmii_crs_dv_sr, rmii_rx_d1_d0_sr,
127 rmii_ref_clk_sr, rmii_mdc_mdio_sr, sirq_0_1_sr, sirq2_sr,
128 i2s_do_d1_sr, i2s_lr_m_clk0_sr, i2s_bclk0_mclk1_sr,
129 pcm1_in_out_sr, sd1_d3_d0_sr, sd0_sd1_clk_cmd_sr,
130 spi0_sclk_mosi_sr, spi0_ss_miso_sr, uart0_rx_tx_sr,
131 uart4_rx_tx_sr, uart2_sr, uart3_sr, i2c0_sr, i2c1_sr, i2c2_sr,
134 - function: An array of strings, each string containing the name of the
135 pinmux functions. These functions can only be selected by
136 the corresponding pin groups. The following are the list of
137 pinmux functions available:
139 eram, eth_rmii, eth_smii, spi0, spi1, spi2, spi3, sens0,
140 uart0, uart1, uart2, uart3, uart4, uart5, uart6, i2s0, i2s1,
141 pcm0, pcm1, jtag, pwm0, pwm1, pwm2, pwm3, pwm4, pwm5, sd0,
142 sd1, sd2, sd3, i2c0, i2c1, i2c2, i2c3, i2c4, i2c5, lvds,
143 usb30, usb20, gpu, mipi_csi0, mipi_csi1, mipi_dsi, nand0,
144 nand1, spdif, sirq0, sirq1, sirq2
148 - bias-bus-hold: No arguments. The specified pins should retain the previous
150 - bias-high-impedance: No arguments. The specified pins should be configured
152 - bias-pull-down: No arguments. The specified pins should be configured as
154 - bias-pull-up: No arguments. The specified pins should be configured as
156 - input-schmitt-enable: No arguments: Enable schmitt trigger for the specified
158 - input-schmitt-disable: No arguments: Disable schmitt trigger for the specified
160 - slew-rate: Integer. Sets slew rate for the specified pins.
164 - drive-strength: Integer. Selects the drive strength for the specified
174 pinctrl: pinctrl@e01b0000 {
175 compatible = "actions,s900-pinctrl";
176 reg = <0x0 0xe01b0000 0x0 0x1000>;
177 clocks = <&cmu CLK_GPIO>;
179 gpio-ranges = <&pinctrl 0 0 146>;
181 interrupt-controller;
182 #interrupt-cells = <2>;
184 uart2-default: uart2-default {
186 groups = "lvds_oep_odn_mfp";
190 groups = "lvds_oep_odn_drv";
191 drive-strength = <12>;