diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/pinctrl/brcm,ns2-pinmux.txt | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/pinctrl/brcm,ns2-pinmux.txt')
-rw-r--r-- | Documentation/devicetree/bindings/pinctrl/brcm,ns2-pinmux.txt | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/brcm,ns2-pinmux.txt b/Documentation/devicetree/bindings/pinctrl/brcm,ns2-pinmux.txt new file mode 100644 index 000000000..e295dda4b --- /dev/null +++ b/Documentation/devicetree/bindings/pinctrl/brcm,ns2-pinmux.txt @@ -0,0 +1,102 @@ +Broadcom Northstar2 IOMUX Controller + +The Northstar2 IOMUX controller supports group based mux configuration. There +are some individual pins that support modifying the pinconf parameters. + +Required properties: + +- compatible: + Must be "brcm,ns2-pinmux" + +- reg: + Define the base and range of the I/O address space that contains the + Northstar2 IOMUX and pin configuration registers. + +Properties in sub nodes: + +- function: + The mux function to select + +- groups: + The list of groups to select with a given function + +- pins: + List of pin names to change configuration + +The generic properties bias-disable, bias-pull-down, bias-pull-up, +drive-strength, slew-rate, input-enable, input-disable are supported +for some individual pins listed at the end. + +For more details, refer to +Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt + +For example: + + pinctrl: pinctrl@6501d130 { + compatible = "brcm,ns2-pinmux"; + reg = <0x6501d130 0x08>, + <0x660a0028 0x04>, + <0x660009b0 0x40>; + + pinctrl-names = "default"; + pinctrl-0 = <&nand_sel &uart3_rx &sdio0_d4>; + + /* Select nand function */ + nand_sel: nand_sel { + function = "nand"; + groups = "nand_grp"; + }; + + /* Pull up the uart3 rx pin */ + uart3_rx: uart3_rx { + pins = "uart3_sin"; + bias-pull-up; + }; + + /* Set the drive strength of sdio d4 pin */ + sdio0_d4: sdio0_d4 { + pins = "sdio0_data4"; + drive-strength = <8>; + }; + }; + +List of supported functions and groups in Northstar2: + +"nand": "nand_grp" + +"nor": "nor_data_grp", "nor_adv_grp", "nor_addr_0_3_grp", "nor_addr_4_5_grp", + "nor_addr_6_7_grp", "nor_addr_8_9_grp", "nor_addr_10_11_grp", + "nor_addr_12_15_grp" + +"gpio": "gpio_0_1_grp", "gpio_2_5_grp", "gpio_6_7_grp", "gpio_8_9_grp", + "gpio_10_11_grp", "gpio_12_13_grp", "gpio_14_17_grp", "gpio_18_19_grp", + "gpio_20_21_grp", "gpio_22_23_grp", "gpio_24_25_grp", "gpio_26_27_grp", + "gpio_28_29_grp", "gpio_30_31_grp" + +"pcie": "pcie_ab1_clk_wak_grp", "pcie_a3_clk_wak_grp", "pcie_b3_clk_wak_grp", + "pcie_b2_clk_wak_grp", "pcie_a2_clk_wak_grp" + +"uart0": "uart0_modem_grp", "uart0_rts_cts_grp", "uart0_in_out_grp" + +"uart1": "uart1_ext_clk_grp", "uart1_dcd_dsr_grp", "uart1_ri_dtr_grp", + "uart1_rts_cts_grp", "uart1_in_out_grp" + +"uart2": "uart2_rts_cts_grp" + +"pwm": "pwm_0_grp", "pwm_1_grp", "pwm_2_grp", "pwm_3_grp" + + +List of pins that support pinconf parameters: + +"qspi_wp", "qspi_hold", "qspi_cs", "qspi_sck", "uart3_sin", "uart3_sout", +"qspi_mosi", "qspi_miso", "spi0_fss", "spi0_rxd", "spi0_txd", "spi0_sck", +"spi1_fss", "spi1_rxd", "spi1_txd", "spi1_sck", "sdio0_data7", +"sdio0_emmc_rst", "sdio0_led_on", "sdio0_wp", "sdio0_data3", "sdio0_data4", +"sdio0_data5", "sdio0_data6", "sdio0_cmd", "sdio0_data0", "sdio0_data1", +"sdio0_data2", "sdio1_led_on", "sdio1_wp", "sdio0_cd_l", "sdio0_clk", +"sdio1_data5", "sdio1_data6", "sdio1_data7", "sdio1_emmc_rst", "sdio1_data1", +"sdio1_data2", "sdio1_data3", "sdio1_data4", "sdio1_cd_l", "sdio1_clk", +"sdio1_cmd", "sdio1_data0", "ext_mdio_0", "ext_mdc_0", "usb3_p1_vbus_ppc", +"usb3_p1_overcurrent", "usb3_p0_vbus_ppc", "usb3_p0_overcurrent", +"usb2_presence_indication", "usb2_vbus_present", "usb2_vbus_ppc", +"usb2_overcurrent", "sata_led1", "sata_led0" |