1Bitmain BM1880 Pin Controller 2 3This binding describes the pin controller found in the BM1880 SoC. 4 5Required Properties: 6 7- compatible: Should be "bitmain,bm1880-pinctrl" 8- reg: Offset and length of pinctrl space in SCTRL. 9 10Please refer to pinctrl-bindings.txt in this directory for details of the 11common pinctrl bindings used by client devices, including the meaning of the 12phrase "pin configuration node". 13 14The pin configuration nodes act as a container for an arbitrary number of 15subnodes. Each of these subnodes represents some desired configuration for a 16pin, a group, or a list of pins or groups. This configuration for BM1880 SoC 17includes only pinmux as there is no pinconf support available in SoC. 18 19Each configuration node can consist of multiple nodes describing the pinmux 20options. The name of each subnode is not important; all subnodes should be 21enumerated and processed purely based on their content. 22 23The following generic properties as defined in pinctrl-bindings.txt are valid 24to specify in a pinmux subnode: 25 26Required Properties: 27 28- pins: An array of strings, each string containing the name of a pin. 29 Valid values for pins are: 30 31 MIO0 - MIO111 32 33- groups: An array of strings, each string containing the name of a pin 34 group. Valid values for groups are: 35 36 nand_grp, spi_grp, emmc_grp, sdio_grp, eth0_grp, pwm0_grp, 37 pwm1_grp, pwm2_grp, pwm3_grp, pwm4_grp, pwm5_grp, pwm6_grp, 38 pwm7_grp, pwm8_grp, pwm9_grp, pwm10_grp, pwm11_grp, pwm12_grp, 39 pwm13_grp, pwm14_grp, pwm15_grp, pwm16_grp, pwm17_grp, 40 pwm18_grp, pwm19_grp, pwm20_grp, pwm21_grp, pwm22_grp, 41 pwm23_grp, pwm24_grp, pwm25_grp, pwm26_grp, pwm27_grp, 42 pwm28_grp, pwm29_grp, pwm30_grp, pwm31_grp, pwm32_grp, 43 pwm33_grp, pwm34_grp, pwm35_grp, pwm36_grp, i2c0_grp, 44 i2c1_grp, i2c2_grp, i2c3_grp, i2c4_grp, uart0_grp, uart1_grp, 45 uart2_grp, uart3_grp, uart4_grp, uart5_grp, uart6_grp, 46 uart7_grp, uart8_grp, uart9_grp, uart10_grp, uart11_grp, 47 uart12_grp, uart13_grp, uart14_grp, uart15_grp, gpio0_grp, 48 gpio1_grp, gpio2_grp, gpio3_grp, gpio4_grp, gpio5_grp, 49 gpio6_grp, gpio7_grp, gpio8_grp, gpio9_grp, gpio10_grp, 50 gpio11_grp, gpio12_grp, gpio13_grp, gpio14_grp, gpio15_grp, 51 gpio16_grp, gpio17_grp, gpio18_grp, gpio19_grp, gpio20_grp, 52 gpio21_grp, gpio22_grp, gpio23_grp, gpio24_grp, gpio25_grp, 53 gpio26_grp, gpio27_grp, gpio28_grp, gpio29_grp, gpio30_grp, 54 gpio31_grp, gpio32_grp, gpio33_grp, gpio34_grp, gpio35_grp, 55 gpio36_grp, gpio37_grp, gpio38_grp, gpio39_grp, gpio40_grp, 56 gpio41_grp, gpio42_grp, gpio43_grp, gpio44_grp, gpio45_grp, 57 gpio46_grp, gpio47_grp, gpio48_grp, gpio49_grp, gpio50_grp, 58 gpio51_grp, gpio52_grp, gpio53_grp, gpio54_grp, gpio55_grp, 59 gpio56_grp, gpio57_grp, gpio58_grp, gpio59_grp, gpio60_grp, 60 gpio61_grp, gpio62_grp, gpio63_grp, gpio64_grp, gpio65_grp, 61 gpio66_grp, gpio67_grp, eth1_grp, i2s0_grp, i2s0_mclkin_grp, 62 i2s1_grp, i2s1_mclkin_grp, spi0_grp 63 64- function: An array of strings, each string containing the name of the 65 pinmux functions. The following are the list of pinmux 66 functions available: 67 68 nand, spi, emmc, sdio, eth0, pwm0, pwm1, pwm2, pwm3, pwm4, 69 pwm5, pwm6, pwm7, pwm8, pwm9, pwm10, pwm11, pwm12, pwm13, 70 pwm14, pwm15, pwm16, pwm17, pwm18, pwm19, pwm20, pwm21, pwm22, 71 pwm23, pwm24, pwm25, pwm26, pwm27, pwm28, pwm29, pwm30, pwm31, 72 pwm32, pwm33, pwm34, pwm35, pwm36, i2c0, i2c1, i2c2, i2c3, 73 i2c4, uart0, uart1, uart2, uart3, uart4, uart5, uart6, uart7, 74 uart8, uart9, uart10, uart11, uart12, uart13, uart14, uart15, 75 gpio0, gpio1, gpio2, gpio3, gpio4, gpio5, gpio6, gpio7, gpio8, 76 gpio9, gpio10, gpio11, gpio12, gpio13, gpio14, gpio15, gpio16, 77 gpio17, gpio18, gpio19, gpio20, gpio21, gpio22, gpio23, 78 gpio24, gpio25, gpio26, gpio27, gpio28, gpio29, gpio30, 79 gpio31, gpio32, gpio33, gpio34, gpio35, gpio36, gpio37, 80 gpio38, gpio39, gpio40, gpio41, gpio42, gpio43, gpio44, 81 gpio45, gpio46, gpio47, gpio48, gpio49, gpio50, gpio51, 82 gpio52, gpio53, gpio54, gpio55, gpio56, gpio57, gpio58, 83 gpio59, gpio60, gpio61, gpio62, gpio63, gpio64, gpio65, 84 gpio66, gpio67, eth1, i2s0, i2s0_mclkin, i2s1, i2s1_mclkin, 85 spi0 86 87Example: 88 pinctrl: pinctrl@50 { 89 compatible = "bitmain,bm1880-pinctrl"; 90 reg = <0x50 0x4B0>; 91 92 pinctrl_uart0_default: uart0-default { 93 pinmux { 94 groups = "uart0_grp"; 95 function = "uart0"; 96 }; 97 }; 98 }; 99