| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | Broadcom Cygnus IOMUX Controller |
| 2 | |
| 3 | The Cygnus IOMUX controller supports group based mux configuration. In |
| 4 | addition, certain pins can be muxed to GPIO function individually. |
| 5 | |
| 6 | Required properties: |
| 7 | |
| 8 | - compatible: |
| 9 | Must be "brcm,cygnus-pinmux" |
| 10 | |
| 11 | - reg: |
| 12 | Define the base and range of the I/O address space that contains the Cygnus |
| 13 | IOMUX registers |
| 14 | |
| 15 | Properties in subnodes: |
| 16 | |
| 17 | - function: |
| 18 | The mux function to select |
| 19 | |
| 20 | - groups: |
| 21 | The list of groups to select with a given function |
| 22 | |
| 23 | For more details, refer to |
| 24 | Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt |
| 25 | |
| 26 | For example: |
| 27 | |
| 28 | pinmux: pinmux@0301d0c8 { |
| 29 | compatible = "brcm,cygnus-pinmux"; |
| 30 | reg = <0x0301d0c8 0x1b0>; |
| 31 | |
| 32 | pinctrl-names = "default"; |
| 33 | pinctrl-0 = <&i2s0_default>; |
| 34 | |
| 35 | i2s0_default: i2s0_default { |
| 36 | mux { |
| 37 | function = "i2s0"; |
| 38 | groups = "i2s0_0_grp", "i2s0_1_grp"; |
| 39 | }; |
| 40 | }; |
| 41 | }; |
| 42 | |
| 43 | List of supported functions and groups in Cygnus: |
| 44 | |
| 45 | "i2s0": "i2s0_0_grp", "i2s0_1_grp" |
| 46 | |
| 47 | "i2s1": "i2s1_0_grp", "i2s1_1_grp" |
| 48 | |
| 49 | "i2s2": "i2s2_0_grp", "i2s2_1_grp", "i2s2_2_grp", "i2s2_3_grp", "i2s2_4_grp" |
| 50 | |
| 51 | "spdif": "spdif_grp" |
| 52 | |
| 53 | "pwm0": "pwm0_grp" |
| 54 | |
| 55 | "pwm1": "pwm1_grp" |
| 56 | |
| 57 | "pwm2": "pwm2_grp" |
| 58 | |
| 59 | "pwm3": "pwm3_grp" |
| 60 | |
| 61 | "pwm4": "pwm4_grp" |
| 62 | |
| 63 | "pwm5": "pwm5_grp" |
| 64 | |
| 65 | "key": "key0_grp", "key1_grp", "key2_grp", "key3_grp", "key4_grp", "key5_grp", |
| 66 | "key6_grp", "key7_grp", "key8_grp", "key9_grp", "key10_grp", "key11_grp", |
| 67 | "key12_grp", "key13_grp", "key14_grp", "key15_grp" |
| 68 | |
| 69 | "audio_dte": "audio_dte0_grp", "audio_dte1_grp", "audio_dte2_grp", "audio_dte3_grp" |
| 70 | |
| 71 | "smart_card0": "smart_card0_grp", "smart_card0_fcb_grp" |
| 72 | |
| 73 | "smart_card1": "smart_card1_grp", "smart_card1_fcb_grp" |
| 74 | |
| 75 | "spi0": "spi0_grp" |
| 76 | |
| 77 | "spi1": "spi1_grp" |
| 78 | |
| 79 | "spi2": "spi2_grp" |
| 80 | |
| 81 | "spi3": "spi3_grp" |
| 82 | |
| 83 | "spi4": "spi4_0_grp", "spi4_1_grp" |
| 84 | |
| 85 | "spi5": "spi5_grp" |
| 86 | |
| 87 | "sw_led0": "sw_led0_0_grp", "sw_led0_1_grp" |
| 88 | |
| 89 | "sw_led1": "sw_led1_grp" |
| 90 | |
| 91 | "sw_led2": "sw_led2_0_grp", "sw_led2_1_grp" |
| 92 | |
| 93 | "d1w": "d1w_grp" |
| 94 | |
| 95 | "lcd": "lcd_grp" |
| 96 | |
| 97 | "sram": "sram_0_grp", "sram_1_grp" |
| 98 | |
| 99 | "uart0": "uart0_grp" |
| 100 | |
| 101 | "uart1": "uart1_grp", "uart1_dte_grp" |
| 102 | |
| 103 | "uart2": "uart2_grp" |
| 104 | |
| 105 | "uart3": "uart3_grp" |
| 106 | |
| 107 | "uart4": "uart4_grp" |
| 108 | |
| 109 | "qspi": "qspi_0_grp", "qspi_1_grp" |
| 110 | |
| 111 | "nand": "nand_grp" |
| 112 | |
| 113 | "sdio0": "sdio0_grp", "sdio0_cd_grp", "sdio0_mmc_grp" |
| 114 | |
| 115 | "sdio1": "sdio1_data_0_grp", "sdio1_data_1_grp", "sdio1_cd_grp", |
| 116 | "sdio1_led_grp", "sdio1_mmc_grp" |
| 117 | |
| 118 | "can0": "can0_grp" |
| 119 | |
| 120 | "can1": "can1_grp" |
| 121 | |
| 122 | "cam": "cam_led_grp", "cam_0_grp", "cam_1_grp" |
| 123 | |
| 124 | "bsc1": "bsc1_grp" |
| 125 | |
| 126 | "pcie_clkreq": "pcie_clkreq_grp" |
| 127 | |
| 128 | "usb0_oc": "usb0_oc_grp" |
| 129 | |
| 130 | "usb1_oc": "usb1_oc_grp" |
| 131 | |
| 132 | "usb2_oc": "usb2_oc_grp" |