Difference between revisions of "Beagleboard:BeagleBone cape interface spec"
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− | This is a list of symlink interfaces based on BeagleBone Cape header pins.<ref>[https://docs.google.com/spreadsheets/d/1fE-AsDZvJ-bBwzNBj1_sPDrutvEvsmARqFwvbw_HkrE/edit?usp=sharing Google drive with summary of expansion signals on various BeagleBoard.org designs]</ref><ref>[https://dev.ti.com/pinmux TI Pinmux Helper]</ref> | + | This is a list of symlink interfaces based on BeagleBone Cape header pins.<ref>[https://docs.google.com/spreadsheets/d/1fE-AsDZvJ-bBwzNBj1_sPDrutvEvsmARqFwvbw_HkrE/edit?usp=sharing Google drive with summary of expansion signals on various BeagleBoard.org designs]</ref><ref>[https://dev.ti.com/pinmux TI Pinmux Helper]</ref><ref>[[Beagleboard:Cape Expansion Headers]]</ref> |
+ | |||
+ | = LEDs = | ||
+ | |||
+ | The compatibility layer comes with simple reference nodes for attaching LEDs to any gpio pin. The format followed for these nodes is '''led_P8_## / led_P9_##'''. The '''gpio-leds''' driver is used by these reference nodes internally and allows users to easily create compatible led nodes in overlays for BBBWL, BBB, and BBAI. For the definitions, you can see [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbai-bone-buses.dtsi#L16 bbai-bone-buses.dtsi#L16] & [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbb-bone-buses.dtsi#L16 bbb-bone-buses.dtsi#L16]. | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone LEDs Overlays | ||
+ | |- | ||
+ | ! Header !! Pin !! Overlay | ||
+ | |- | ||
+ | | P8 || 03 | ||
+ | | [https://github.com/beagleboard/BeagleBoard-DeviceTrees/blob/v4.19.x-ti-overlays/src/arm/overlays/BONE-LED_P8_03.dts BONE-LED_P8_03.dts] | ||
+ | |- | ||
+ | |||
+ | |- | ||
+ | | P9 || 11 | ||
+ | | [https://github.com/beagleboard/BeagleBoard-DeviceTrees/blob/v4.19.x-ti-overlays/src/arm/overlays/BONE-LED_P9_11.dts BONE-LED_P9_11.dts] | ||
+ | |- | ||
+ | |||
+ | |} | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone LEDs | ||
+ | |- | ||
+ | ! LED !! Header pin !! BBBWL/BBB !! BBAI | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_03 | ||
+ | | P8_03 || gpio1_6 || gpio1_24 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_04 | ||
+ | | P8_04 || gpio1_7 || gpio1_25 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_05 | ||
+ | | P8_05 || gpio1_2 || gpio7_1 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_06 | ||
+ | | P8_06 || gpio1_3 || gpio7_2 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_07 | ||
+ | | P8_07 || gpio2_2 || gpio6_5 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_08 | ||
+ | | P8_08 || gpio2_3 || gpio6_6 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_09 | ||
+ | | P8_09 || gpio2_5 || gpio6_18 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_10 | ||
+ | | P8_10 || gpio2_4 || gpio6_4 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_11 | ||
+ | | P8_11 || gpio1_13 || gpio3_11 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_12 | ||
+ | | P8_12 || gpio1_12 || gpio3_10 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_13 | ||
+ | | P8_13 || gpio0_23 || gpio4_11 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_14 | ||
+ | | P8_14 || gpio0_26 || gpio4_13 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_15 | ||
+ | | P8_15 || gpio1_15 || gpio4_3 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_16 | ||
+ | | P8_16 || gpio1_14 || gpio4_29 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_17 | ||
+ | | P8_17 || gpio0_27 || gpio8_18 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_18 | ||
+ | | P8_18 || gpio2_1 || gpio4_9 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_19 | ||
+ | | P8_19 || gpio0_22 || gpio4_10 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_20 | ||
+ | | P8_20 || gpio1_31 || gpio6_30 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_21 | ||
+ | | P8_21 || gpio1_30 || gpio6_29 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_22 | ||
+ | | P8_22 || gpio1_5 || gpio1_23 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_23 | ||
+ | | P8_23 || gpio1_4 || gpio1_22 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_24 | ||
+ | | P8_24 || gpio1_1 || gpio7_0 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_25 | ||
+ | | P8_25 || gpio1_0 || gpio6_31 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_26 | ||
+ | | P8_26 || gpio1_29 || gpio4_28 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_27 | ||
+ | | P8_27 || gpio2_22 || gpio4_23 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_28 | ||
+ | | P8_28 || gpio2_24 || gpio4_19 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_29 | ||
+ | | P8_29 || gpio2_23 || gpio4_22 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_30 | ||
+ | | P8_30 || gpio2_25 || gpio4_20 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_31 | ||
+ | | P8_31 || gpio0_10 || gpio8_14 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_32 | ||
+ | | P8_32 || gpio0_11 || gpio8_15 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_33 | ||
+ | | P8_33 || gpio0_9 || gpio8_13 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_34 | ||
+ | | P8_34 || gpio2_17 || gpio8_11 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_35 | ||
+ | | P8_35 || gpio0_8 || gpio8_12 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_36 | ||
+ | | P8_36 || gpio2_16 || gpio8_10 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_37 | ||
+ | | P8_37 || gpio2_14 || gpio8_8 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_38 | ||
+ | | P8_38 || gpio2_15 || gpio8_9 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_39 | ||
+ | | P8_39 || gpio2_12 || gpio8_6 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_40 | ||
+ | | P8_40 || gpio2_13 || gpio8_7 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_41 | ||
+ | | P8_41 || gpio2_10 || gpio8_4 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_42 | ||
+ | | P8_42 || gpio2_11 || gpio8_5 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_43 | ||
+ | | P8_43 || gpio2_8 || gpio8_2 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_44 | ||
+ | | P8_44 || gpio2_9 || gpio8_3 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_45 | ||
+ | | P8_45 || gpio2_6 || gpio8_0 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P8_46 | ||
+ | | P8_46 || gpio2_7 || gpio8_1 | ||
+ | |||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_11 | ||
+ | | P9_11 || gpio0_30 || gpio8_17 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_12 | ||
+ | | P9_12 || gpio1_28 || gpio5_0 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_13 | ||
+ | | P9_13 || gpio0_31 || gpio6_12 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_14 | ||
+ | | P9_14 || gpio1_18 || gpio4_25 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_15 | ||
+ | | P9_15 || gpio1_16 || gpio3_12 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_16 | ||
+ | | P9_16 || gpio1_19 || gpio4_26 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_17 | ||
+ | | P9_17 || gpio0_5 || gpio7_17 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_18 | ||
+ | | P9_18 || gpio0_4 || gpio7_16 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_19 | ||
+ | | P9_19 || gpio0_13 || gpio7_3 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_20 | ||
+ | | P9_20 || gpio0_12 || gpio7_4 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_21 | ||
+ | | P9_21 || gpio0_3 || gpio3_3 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_22 | ||
+ | | P9_22 || gpio0_2 || gpio6_19 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_23 | ||
+ | | P9_23 || gpio1_17 || gpio7_11 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_24 | ||
+ | | P9_24 || gpio0_15 || gpio6_15 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_25 | ||
+ | | P9_25 || gpio3_21 || gpio6_17 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_26 | ||
+ | | P9_26 || gpio0_14 || gpio6_14 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_27 | ||
+ | | P9_27 || gpio3_19 || gpio4_15 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_28 | ||
+ | | P9_28 || gpio3_17 || gpio4_17 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_29 | ||
+ | | P9_29 || gpio3_15 || gpio5_11 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_30 | ||
+ | | P9_30 || gpio3_16 || gpio5_12 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_31 | ||
+ | | P9_31 || gpio3_14 || gpio5_10 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_41 | ||
+ | | P9_41 || gpio0_20 || gpio6_20 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_91 | ||
+ | | P9_91 || gpio3_20 || ❌ | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_42 | ||
+ | | P9_42 || gpio0_7 || gpio4_18 | ||
+ | |- | ||
+ | ! /sys/class/leds/led_P9_92 | ||
+ | | P9_92 || gpio3_18 || ❌ | ||
+ | |- | ||
+ | ! /sys/class/leds/led_A15 | ||
+ | | A15 || gpio0_19 || ❌ | ||
+ | |- | ||
+ | |||
+ | |} | ||
= I2C = | = I2C = | ||
+ | |||
+ | Compatibility layer provides simple I2C bone bus nodes for creating compatible overlays for BBBWL, BBB, & BBAI. The format followed for these nodes is '''bone_i2c_#'''. For the definitions, you can see [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbai-bone-buses.dtsi#L388 bbai-bone-buses.dtsi#L388] & [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbb-bone-buses.dtsi#L403 bbb-bone-buses.dtsi#L403]. | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone bus I2C | ||
+ | |- | ||
+ | ! Bone bus !! BBBWL/BBB !! BBAI !! SCL !! SDA !! Overlay | ||
+ | |- | ||
+ | !/dev/bone/i2c/0 | ||
+ | | I2C0 || I2C1 | ||
+ | | colspan="3" style="text-align: center;" |❌ (On-board) | ||
+ | |- | ||
+ | |- | ||
+ | !/dev/bone/i2c/1 | ||
+ | | I2C1 || I2C5 || P9.17 || P9.18 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_i2c/src/arm/BONE-I2C1.dts BONE-I2C1.dts] | ||
+ | |- | ||
+ | |- | ||
+ | !/dev/bone/i2c/2 | ||
+ | | I2C2 || I2C4 || P9.19 || P9.20 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_i2c/src/arm/BONE-I2C2.dts BONE-I2C2.dts] | ||
+ | |- | ||
+ | |- | ||
+ | !/dev/bone/i2c/2a | ||
+ | | I2C2 || N/A || P9.21 || P9.22 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_i2c/src/arm/BONE-I2C2A.dts BONE-I2C2A.dts] | ||
+ | |- | ||
+ | |- | ||
+ | !/dev/bone/i2c/3 | ||
+ | | I2C1 || I2C3 || P9.24 || P9.26 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_i2c/src/arm/BONE-I2C3.dts BONE-I2C3.dts] | ||
+ | |- | ||
+ | |||
+ | |} | ||
+ | |||
+ | |||
+ | |||
+ | <!-- | ||
=== /dev/bone/i2c/0 === | === /dev/bone/i2c/0 === | ||
AM3358 I2C0<br> | AM3358 I2C0<br> | ||
Line 20: | Line 297: | ||
* P9.19 - SCL | * P9.19 - SCL | ||
* P9.20 - SDA | * P9.20 - SDA | ||
+ | |||
+ | === /dev/bone/i2c/2a === | ||
+ | TODO<br> | ||
+ | AM3358 I2C2<br> | ||
+ | AM5729 ''N/A'' | ||
+ | * P9.21 - SCL | ||
+ | * P9.22 - SDA | ||
=== /dev/bone/i2c/3 === | === /dev/bone/i2c/3 === | ||
− | AM3358 | + | TODO<br> |
+ | AM3358 I2C1<br> | ||
AM5729 I2C3 | AM5729 I2C3 | ||
* P9.24 - SCL | * P9.24 - SCL | ||
* P9.26 - SDA | * P9.26 - SDA | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
=== /dev/bone/i2c/5 === | === /dev/bone/i2c/5 === | ||
Line 54: | Line 332: | ||
= SPI = | = SPI = | ||
+ | SPI bone bus nodes allow creating compatible overlays for BBBWl, BBB, & BBAI. For the definitions, you can see [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbai-bone-buses.dtsi#L406 bbai-bone-buses.dtsi#L406] & [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbb-bone-buses.dtsi#L423 bbb-bone-buses.dtsi#L423]. | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone bus SPI | ||
+ | |- | ||
+ | ! Bone bus !! BBBWL/BBB !! BBAI !! MOSI !! MISO !! CLK !! CS !! Overlay | ||
+ | |- | ||
+ | !/dev/bone/spi/0.''x'' | ||
+ | | SPI0 || SPI2 || P9.18 || P9.21 || P9.22 | ||
+ | | | ||
+ | * P9.17 (CS0) | ||
+ | * P9.23 (CS1 - BBAI only) | ||
+ | | | ||
+ | * [https://github.com/lorforlinux/bb.org-overlays/blob/bone_spi/src/arm/BONE-SPI0_0.dts BONE-SPI0_0.dts] | ||
+ | * [https://github.com/beagleboard/BeagleBoard-DeviceTrees/blob/v4.19.x-ti-overlays/src/arm/overlays/BBAI-SPI0_1.dts BBAI-SPI0_1.dts] | ||
+ | |- | ||
+ | |- | ||
+ | !/dev/bone/spi/1.''x'' | ||
+ | | SPI1 || SPI3 || P9.30 || P9.29 || P9.31 | ||
+ | | | ||
+ | * P9.28 (CS0) | ||
+ | * P9.42 (CS1) | ||
+ | | | ||
+ | * [https://github.com/lorforlinux/bb.org-overlays/blob/bone_spi/src/arm/BONE-SPI1_0.dts BONE-SPI1_0.dts] | ||
+ | * [https://github.com/lorforlinux/bb.org-overlays/blob/bone_spi/src/arm/BONE-SPI1_1.dts BONE-SPI1_1.dts] | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | |||
+ | |||
+ | |||
+ | <!-- | ||
Need to add a symlink from /dev/spi to /dev/bone/spi. | Need to add a symlink from /dev/spi to /dev/bone/spi. | ||
Line 91: | Line 401: | ||
AM5729 SPI3 GPIO7_11 | AM5729 SPI3 GPIO7_11 | ||
* P9.23 - CS | * P9.23 - CS | ||
+ | --> | ||
= UART = | = UART = | ||
+ | UART bone bus nodes allow creating compatible overlays for BBBWl, BBB, & BBAI. For the definitions, you can see [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbai-bone-buses.dtsi#L367 bbai-bone-buses.dtsi#L367] & [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbb-bone-buses.dtsi#L382 bbb-bone-buses.dtsi#L382]. | ||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone bus UART | ||
+ | |- | ||
+ | ! Bone bus !! BBBWL/BBB !! BBAI !! TX !! RX !! RTSn !! CTSn !! Overlays | ||
+ | |- | ||
+ | ! /dev/bone/uart/0 | ||
+ | | UART0 || UART1 | ||
+ | | colspan="5" style="text-align: center;" | ❌ (console debug header pins) | ||
+ | |- | ||
+ | ! /dev/bone/uart/1 | ||
+ | | UART1 || UART10 || P9.24 || P9.26 | ||
+ | | | ||
+ | * P9.19 | ||
+ | * P8.4 (''N/A'' on AM3358) | ||
+ | | | ||
+ | * P9.20 | ||
+ | * P8.3 (''N/A'' on AM3358) | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_uart/src/arm/BONE-UART1.dts BONE-UART1.dts] | ||
+ | |- | ||
+ | |||
+ | |- | ||
+ | ! /dev/bone/uart/2 | ||
+ | | UART2 || UART3 || P9.21 || P9.22 | ||
+ | | | ||
+ | * P8.38 (N/A on AM5729) | ||
+ | | | ||
+ | * P8.37 (N/A on AM5729) | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_uart/src/arm/BONE-UART2.dts BONE-UART2.dts] | ||
+ | |- | ||
+ | |||
+ | |- | ||
+ | ! /dev/bone/uart/3 | ||
+ | | UART3 || ❌ || P9.42 || ❌ | ||
+ | | ❌ | ||
+ | | ❌ | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_uart/src/arm/BONE-UART3.dts BONE-UART3.dts] | ||
+ | |- | ||
+ | |||
+ | |- | ||
+ | ! /dev/bone/uart/4 | ||
+ | | UART4 || UART5 || P9.13 || P9.11 | ||
+ | | | ||
+ | * P8.33 (N/A on AM5729) | ||
+ | * P8.6 (N/A on AM3358) | ||
+ | | | ||
+ | * P8.35 (N/A on AM5729) | ||
+ | * P8.5 (N/A on AM3358) | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_uart/src/arm/BONE-UART4.dts BONE-UART4.dts] | ||
+ | |- | ||
+ | |||
+ | |- | ||
+ | ! /dev/bone/uart/5 | ||
+ | | UART5 || UART8 || P8.37 || P8.38 | ||
+ | | P8.32 | ||
+ | | P8.31 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_uart/src/arm/BONE-UART5.dts BONE-UART5.dts] | ||
+ | |- | ||
+ | |||
+ | |} | ||
+ | |||
+ | <!-- | ||
=== /dev/bone/uart/0 === | === /dev/bone/uart/0 === | ||
AM3358 UART0<br> | AM3358 UART0<br> | ||
Line 112: | Line 485: | ||
=== /dev/bone/uart/2 === | === /dev/bone/uart/2 === | ||
https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-UART2-00A0.dts <br> | https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-UART2-00A0.dts <br> | ||
− | https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-UART2-RTSCTS-00A0.dts | + | https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-UART2-RTSCTS-00A0.dts <br> |
AM3358 UART2<br> | AM3358 UART2<br> | ||
AM5729 UART3 | AM5729 UART3 | ||
Line 147: | Line 520: | ||
* P8.32 - RTSn | * P8.32 - RTSn | ||
* P8.31 - CTSn | * P8.31 - CTSn | ||
+ | --> | ||
= CAN = | = CAN = | ||
+ | CAN bone bus nodes allow creating compatible overlays for BBBWl, BBB, & BBAI. For the definitions, you can see [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbai-bone-buses.dtsi#L440 bbai-bone-buses.dtsi#L440] & [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbb-bone-buses.dtsi#L457 bbb-bone-buses.dtsi#L457]. | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone bus CAN | ||
+ | |- | ||
+ | <!-- ! Bone bus! --> | ||
+ | ! BBBWL/BBB !! BBAI !! TX !! RX !! Overlays | ||
+ | |- | ||
+ | <!-- !/dev/bone/can/0 --> | ||
+ | | CAN0 || ❌ || P9.20 || P9.19 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_can/src/arm/BONE-CAN0.dts BONE-CAN0.dts] | ||
+ | |- | ||
+ | |||
+ | |- | ||
+ | <!-- !/dev/bone/can/1 --> | ||
+ | | CAN1 || CAN2 || P9.26 || P9.24 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_can/src/arm/BONE-CAN1.dts BONE-CAN1.dts] | ||
+ | |- | ||
+ | |||
+ | |- | ||
+ | <!-- !/dev/bone/can/2 --> | ||
+ | | ❌ || CAN1 (rev A2 and later) || P8.8 || P8.7 | ||
+ | | TODO | ||
+ | |- | ||
+ | |||
+ | |} | ||
+ | |||
+ | <!-- | ||
=== /dev/bone/can/0 === | === /dev/bone/can/0 === | ||
https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-CAN0-00A0.dts <br> | https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-CAN0-00A0.dts <br> | ||
Line 157: | Line 559: | ||
=== /dev/bone/can/1 === | === /dev/bone/can/1 === | ||
+ | https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-CAN1-00A0.dts <br> | ||
AM3358 CAN1<br> | AM3358 CAN1<br> | ||
AM5729 CAN2 | AM5729 CAN2 | ||
* P9.24 - RX | * P9.24 - RX | ||
* P9.26 - TX | * P9.26 - TX | ||
+ | |||
+ | === /dev/bone/can/2 === | ||
+ | TODO <br> | ||
+ | AM3358 ''N/A''<br> | ||
+ | AM5729 CAN1 (AI rev A2 and later) | ||
+ | * P8.7 - proposed | ||
+ | * P8.8 - proposed | ||
+ | --> | ||
= ADC = | = ADC = | ||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone ADC | ||
+ | |- | ||
+ | ! BBBWL/BBB !! BBAI !! overlay | ||
+ | |- | ||
+ | | Internal || External (STMPE811) | ||
+ | | [https://github.com/beagleboard/BeagleBoard-DeviceTrees/blob/v4.19.x-ti-overlays/src/arm/overlays/BONE-ADC.dts BONE-ADC.dts] | ||
+ | |} | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |- | ||
+ | ! Index !! Header pin !! BBBWL/BBB !! BBAI | ||
+ | |- | ||
+ | ! 0 | ||
+ | | P9_39 || in_voltage0_raw || in_voltage0_raw | ||
+ | |- | ||
+ | ! 1 | ||
+ | | P9_40 || in_voltage1_raw || in_voltage1_raw | ||
+ | |- | ||
+ | ! 2 | ||
+ | | P9_37 || in_voltage2_raw || in_voltage3_raw | ||
+ | |- | ||
+ | ! 3 | ||
+ | | P9_38 || in_voltage3_raw || in_voltage2_raw | ||
+ | |- | ||
+ | ! 4 | ||
+ | | P9_33 || in_voltage4_raw || in_voltage7_raw | ||
+ | |- | ||
+ | ! 5 | ||
+ | | P9_36 || in_voltage5_raw || in_voltage6_raw | ||
+ | |- | ||
+ | ! 6 | ||
+ | | P9_35 || in_voltage6_raw || in_voltage4_raw | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | <!-- | ||
Work needs to be done to create these symlinks as well as handle major differences in the driver used for the ADC. Maybe just have the "okay" in here and more in the base tree? | Work needs to be done to create these symlinks as well as handle major differences in the driver used for the ADC. Maybe just have the "okay" in here and more in the base tree? | ||
Line 174: | Line 622: | ||
* 5 - AM3358 in_voltage5_raw, AM5729 in_voltage6_raw | * 5 - AM3358 in_voltage5_raw, AM5729 in_voltage6_raw | ||
* 6 - AM3358 in_voltage6_raw, AM5729 in_voltage4_raw | * 6 - AM3358 in_voltage6_raw, AM5729 in_voltage4_raw | ||
+ | --> | ||
+ | |||
+ | = PWM = | ||
+ | PWM bone bus nodes allow creating compatible overlays for BBBWl, BBB, & BBAI. For the definitions, you can see [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbai-bone-buses.dtsi#L415 bbai-bone-buses.dtsi#L415] & [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbb-bone-buses.dtsi#L432 bbb-bone-buses.dtsi#L432] | ||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone bus PWM | ||
+ | |- | ||
+ | ! Bone bus !! BBBWL/BBB !! BBAI !! A !! B !! Overlay | ||
+ | |- | ||
+ | !/dev/bone/pwm/0 | ||
+ | | PWM0 || ❌ || P9.22 || P9.21 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_pwm/src/arm/BONE-PWM0.dts BONE-PWM0.dts] | ||
+ | |- | ||
+ | |||
+ | |- | ||
+ | !/dev/bone/pwm/1 | ||
+ | | PWM1 || PWM3 || P9.14 || P9.16 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_pwm/src/arm/BONE-PWM1.dts BONE-PWM1.dts] | ||
+ | |- | ||
+ | |||
+ | |- | ||
+ | !/dev/bone/pwm/2 | ||
+ | | PWM2 || PWM2 || P8.19 || P8.13 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_pwm/src/arm/BONE-PWM2.dts BONE-PWM2.dts] | ||
+ | |- | ||
+ | |||
+ | |} | ||
+ | |||
+ | = TIMER PWM= | ||
+ | TIMER PWM bone bus uses ti,omap-dmtimer-pwm driver, and timer nodes that allow creating compatible overlays for BBBWl, BBB, & BBAI. For the timer node definitions, you can see [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbai-bone-buses.dtsi#L449 bbai-bone-buses.dtsi#L449] & [https://github.com/lorforlinux/BeagleBoard-DeviceTrees/blob/97a6f0daa9eab09633a2064f68a53b107d6e3968/src/arm/bbb-bone-buses.dtsi#L466 bbb-bone-buses.dtsi#L466]. | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone TIMER PWMs | ||
+ | |- | ||
+ | ! Bone bus !! Header pin !! BBBWL/BBB !! BBAI !! overlay | ||
+ | |- | ||
+ | ! /sys/bus/platform/devices/bone_timer_pwm_0/ | ||
+ | | P8.10 || timer6 || timer10 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_timer/src/arm/BONE-TIMER_PWM_0.dts BONE-TIMER_PWM_0.dts] | ||
+ | |- | ||
+ | ! /sys/bus/platform/devices/bone_timer_pwm_1/ | ||
+ | | P8.07 || timer4 || timer11 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_timer/src/arm/BONE-TIMER_PWM_1.dts BONE-TIMER_PWM_1.dts] | ||
+ | |- | ||
+ | ! /sys/bus/platform/devices/bone_timer_pwm_2/ | ||
+ | | P8.08 || timer7 || timer12 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_timer/src/arm/BONE-TIMER_PWM_2.dts BONE-TIMER_PWM_2.dts] | ||
+ | |- | ||
+ | ! /sys/bus/platform/devices/bone_timer_pwm_3/ | ||
+ | | P9.21 || ❌ || timer13 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_timer/src/arm/BONE-TIMER_PWM_3.dts BONE-TIMER_PWM_3.dts] | ||
+ | |- | ||
+ | ! /sys/bus/platform/devices/bone_timer_pwm_4/ | ||
+ | | P8.09 || timer5 || timer14 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_timer/src/arm/BONE-TIMER_PWM_4.dts BONE-TIMER_PWM_4.dts] | ||
+ | |- | ||
+ | ! /sys/bus/platform/devices/bone_timer_pwm_5/ | ||
+ | | P9.22 || ❌ || timer15 | ||
+ | | [https://github.com/lorforlinux/bb.org-overlays/blob/bone_timer/src/arm/BONE-TIMER_PWM_5.dts BONE-TIMER_PWM_5.dts] | ||
+ | |- | ||
+ | |} | ||
− | = | + | = eCAP = |
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ BBBWL/BBB eCAP PWMs | ||
+ | |- | ||
+ | ! Bone bus !! Header pin !! peripheral !! overlay | ||
+ | |- | ||
+ | ! /sys/bus/platform/drivers/ecap/48302100.ecap | ||
+ | | P9.42 || eCAP0_in_PWM0_out | ||
+ | | [https://github.com/beagleboard/BeagleBoard-DeviceTrees/blob/v4.19.x-ti-overlays/src/arm/overlays/BBB-ECAP0.dts BBB-ECAP0.dts] | ||
+ | |- | ||
+ | ! /sys/bus/platform/drivers/ecap/48304100.ecap | ||
+ | | P9.28 || eCAP2_in_PWM2_out | ||
+ | | [https://github.com/beagleboard/BeagleBoard-DeviceTrees/blob/v4.19.x-ti-overlays/src/arm/overlays/BBB-ECAP2.dts BBB-ECAP2.dts] | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ BBAI eCAP PWMs | ||
+ | |- | ||
+ | ! Bone bus !! Header pin !! peripheral !! overlay | ||
+ | |- | ||
+ | ! /sys/bus/platform/drivers/ecap/4843e100.ecap | ||
+ | | P8.15 || eCAP1_in_PWM1_out | ||
+ | | [https://github.com/beagleboard/BeagleBoard-DeviceTrees/blob/v4.19.x-ti-overlays/src/arm/overlays/BBAI-ECAP1.dts BBAI-ECAP1.dts] | ||
+ | |- | ||
+ | ! /sys/bus/platform/drivers/ecap/48440100.ecap | ||
+ | | P8.14 || eCAP2_in_PWM2_out | ||
+ | | [https://github.com/beagleboard/BeagleBoard-DeviceTrees/blob/v4.19.x-ti-overlays/src/arm/overlays/BBAI-ECAP2.dts BBAI-ECAP2.dts] | ||
+ | |- | ||
+ | ! /sys/bus/platform/drivers/ecap/48440100.ecap | ||
+ | | P8.20 || eCAP2_in_PWM2_out | ||
+ | | [https://github.com/beagleboard/BeagleBoard-DeviceTrees/blob/v4.19.x-ti-overlays/src/arm/overlays/BBAI-ECAP2A.dts BBAI-ECAP2A.dts] | ||
+ | |- | ||
+ | ! /sys/bus/platform/drivers/ecap/48442100.ecap | ||
+ | | P8.04 || eCAP3_in_PWM3_out | ||
+ | | [https://github.com/beagleboard/BeagleBoard-DeviceTrees/blob/v4.19.x-ti-overlays/src/arm/overlays/BBAI-ECAP3.dts BBAI-ECAP3.dts] | ||
+ | |- | ||
+ | ! /sys/bus/platform/drivers/ecap/48442100.ecap | ||
+ | | P8.26 || eCAP3_in_PWM3_out | ||
+ | | [https://github.com/beagleboard/BeagleBoard-DeviceTrees/blob/v4.19.x-ti-overlays/src/arm/overlays/BBAI-ECAP3A.dts BBAI-ECAP3A.dts] | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | <!-- | ||
=== /dev/bone/pwm/0 === | === /dev/bone/pwm/0 === | ||
https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-PWM0-00A0.dts <br> | https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/BB-PWM0-00A0.dts <br> | ||
Line 196: | Line 749: | ||
* P8.19 - A | * P8.19 - A | ||
* P8.13 - B | * P8.13 - B | ||
+ | |||
=== /dev/bone/timer/4 === | === /dev/bone/timer/4 === | ||
Line 220: | Line 774: | ||
AM5729 TIMER12 | AM5729 TIMER12 | ||
* P8.8 | * P8.8 | ||
+ | |||
=== /dev/bone/ecap/1 === | === /dev/bone/ecap/1 === | ||
Line 238: | Line 793: | ||
AM5729 eCAP3_in_PWM3_out | AM5729 eCAP3_in_PWM3_out | ||
* P8.04 | * P8.04 | ||
+ | --> | ||
+ | |||
+ | = eMMC = | ||
− | = | + | {| class="wikitable" style="text-align: center;" |
+ | |+ Bone eMMC | ||
+ | |- | ||
+ | ! BBBWL/BBB !! BBAI !! overlay | ||
+ | |- | ||
+ | | MMC2 || MMC3 || [https://github.com/beagleboard/BeagleBoard-DeviceTrees/blob/v4.19.x-ti-overlays/src/arm/overlays/BONE-eMMC.dts BONE-eMMC.dts] | ||
+ | |} | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |- | ||
+ | ! Header pin !! Description | ||
+ | |- | ||
+ | | P8.3 || DAT6 | ||
+ | |- | ||
+ | | P8.4 || DAT7 | ||
+ | |- | ||
+ | | P8.5 || DAT2 | ||
+ | |- | ||
+ | | P8.6 || DAT3 | ||
+ | |- | ||
+ | | P8.20 || CMD | ||
+ | |- | ||
+ | | P8.21 || CLK | ||
+ | |- | ||
+ | | P8.22 || DAT5 | ||
+ | |- | ||
+ | | P8.23 || DAT4 | ||
+ | |- | ||
+ | | P8.24 || DAT1 | ||
+ | |- | ||
+ | | P8.25 || DAT0 | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | <!-- | ||
=== /dev/bone/mmc/2 === | === /dev/bone/mmc/2 === | ||
TODO: need overlay. Note: On Black, this is used by the on-board eMMC. On AI, these pins are available.<br> | TODO: need overlay. Note: On Black, this is used by the on-board eMMC. On AI, these pins are available.<br> | ||
Line 254: | Line 846: | ||
* P8.4 - DAT7 | * P8.4 - DAT7 | ||
* P8.3 - DAT6 | * P8.3 - DAT6 | ||
+ | --> | ||
= LCD = | = LCD = | ||
− | + | {| class="wikitable" style="text-align: center;" | |
+ | |+ 16bit LCD interface | ||
+ | |- | ||
+ | ! BBBWL/BBB !! BBAI !! overlay | ||
+ | |- | ||
+ | | lcdc || dss || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |- | ||
+ | ! Header pin !! Description | ||
+ | |- | ||
+ | |P8_45 || lcd_data0 | ||
+ | |- | ||
+ | |P8_46 || lcd_data1 | ||
+ | |- | ||
+ | |P8_43 || lcd_data2 | ||
+ | |- | ||
+ | |P8_44 || lcd_data3 | ||
+ | |- | ||
+ | |P8_41 || lcd_data4 | ||
+ | |- | ||
+ | |P8_42 || lcd_data5 | ||
+ | |- | ||
+ | |P8_39 || lcd_data6 | ||
+ | |- | ||
+ | |P8_40 || lcd_data7 | ||
+ | |- | ||
+ | |P8_37 || lcd_data8 | ||
+ | |- | ||
+ | |P8_38 || lcd_data9 | ||
+ | |- | ||
+ | |P8_36 || lcd_data10 | ||
+ | |- | ||
+ | |P8_34 || lcd_data11 | ||
+ | |- | ||
+ | |P8_35 || lcd_data12 | ||
+ | |- | ||
+ | |P8_33 || lcd_data13 | ||
+ | |- | ||
+ | |P8_31 || lcd_data14 | ||
+ | |- | ||
+ | |P8_32 || lcd_data15 | ||
+ | |- | ||
+ | |P8_27 || lcd_vsync | ||
+ | |- | ||
+ | |P8_29 || lcd_hsync | ||
+ | |- | ||
+ | |P8_28 || lcd_pclk | ||
+ | |- | ||
+ | |P8_30 || lcd_ac_bias_en | ||
+ | |- | ||
+ | |} | ||
= eQEP = | = eQEP = | ||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone eQEP | ||
+ | |- | ||
+ | ! Bone bus !! BBBWL/BBB !! BBAI !! A !! B !! strobe !! index !! overlay | ||
+ | |- | ||
+ | ! /bone/eQEP0 | ||
+ | | eQEP0 || eQEP2 || P9.42 || P9.27 | ||
+ | || | ||
+ | * BBB: P9.25 | ||
+ | * BBAI: P8.06 | ||
+ | || | ||
+ | * BBB: P9.41 | ||
+ | * BBAI: P8.05 | ||
+ | | | ||
+ | |- | ||
+ | |||
+ | |- | ||
+ | ! /bone/eQEP1 | ||
+ | | eQEP1 || eQEP0 || P8.35 || P8.33 | ||
+ | || | ||
+ | * BBB: P8.32 | ||
+ | * BBAI: P9.21 | ||
+ | || | ||
+ | * BBB: P8.31 | ||
+ | * BBAI: ❌ | ||
+ | | | ||
+ | |- | ||
+ | |||
+ | |- | ||
+ | ! /bone/eQEP2 | ||
+ | | eQEP2 || eQEP1 || P8.12 || P8.22 | ||
+ | || | ||
+ | * BBB: P8.15 | ||
+ | * BBAI: P8.18 | ||
+ | || | ||
+ | * BBB: P8.16 | ||
+ | * BBAI: P9.15 | ||
+ | | | ||
+ | |- | ||
+ | |||
+ | |- | ||
+ | ! /bone/eQEP2A | ||
+ | | eQEP2 || ❌ || P8.41 || P8.42 || P8.40 || P8.39 | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | <!-- | ||
=== /dev/bone/eqep/0 === | === /dev/bone/eqep/0 === | ||
https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/bone_eqep0-00A0.dts <br> | https://github.com/beagleboard/bb.org-overlays/blob/master/src/arm/bone_eqep0-00A0.dts <br> | ||
Line 297: | Line 990: | ||
* P8.40 - STROBE | * P8.40 - STROBE | ||
* P8.39 - INDEX | * P8.39 - INDEX | ||
+ | --> | ||
= McASP = | = McASP = | ||
− | + | ||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone McASP0 | ||
+ | |- | ||
+ | ! BBBWL/BBB !! BBAI !! overlay | ||
+ | |- | ||
+ | | McASP0 || McASP1 || | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |- | ||
+ | ! Header pin !! Description | ||
+ | |- | ||
+ | | P9.12 || aclkr | ||
+ | |- | ||
+ | | P9.25 || ahclkx | ||
+ | |- | ||
+ | | P9.27 || fsr | ||
+ | |- | ||
+ | | P9.28 || | ||
+ | * BBB: axr2 | ||
+ | * BBAI: axr9 | ||
+ | |- | ||
+ | | P9.29 || fsx | ||
+ | |- | ||
+ | | P9.30 || | ||
+ | * BBB: axr0 | ||
+ | * BBAI: axr10 | ||
+ | |- | ||
+ | | P9.31 || aclkx | ||
+ | |- | ||
+ | |} | ||
= PRU = | = PRU = | ||
The overlay situation for PRUs is a bit more complex than with other peripherals. The mechanism for loading, starting and stopping the PRUs can go through either UIO or RemoteProc.<ref>reference needed</ref> | The overlay situation for PRUs is a bit more complex than with other peripherals. The mechanism for loading, starting and stopping the PRUs can go through either UIO or RemoteProc.<ref>reference needed</ref> | ||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone PRU eCAP | ||
+ | |- | ||
+ | ! Header Pin !! BBBWL/BBB !! BBAI | ||
+ | |- | ||
+ | | P8.15 || pr1_ecap0 || pr1_ecap0 | ||
+ | |- | ||
+ | | P8.32 || ❌ || pr2_ecap0 | ||
+ | |- | ||
+ | | P9.42 || pr1_ecap0 || ❌ | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ BBAI PRU UART | ||
+ | |- | ||
+ | ! UART || TX !! RX !! RTSn !! CTSn !! Overlays | ||
+ | |- | ||
+ | ! PRU1 UART0 | ||
+ | | P8_31 || P8_33 || P8_34 || P8_35 | ||
+ | | | ||
+ | |- | ||
+ | |||
+ | |- | ||
+ | ! PRU2 UART0 | ||
+ | | P8_43 || P8_44 || P8_45 || P8_46 | ||
+ | | | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | {| class="wikitable" style="text-align: center;" | ||
+ | |+ Bone PRU | ||
+ | |- | ||
+ | ! Header Pin !! BBBWL/BBB !! BBAI | ||
+ | |- | ||
+ | | P8.03 || ❌ || pr2_pru0 10 | ||
+ | |- | ||
+ | | P8.04 || ❌ || pr2_pru0 11 | ||
+ | |- | ||
+ | | P8.05 || ❌ || pr2_pru0 06 | ||
+ | |- | ||
+ | | P8.06 || ❌ || pr2_pru0 07 | ||
+ | |- | ||
+ | | P8.07 || ❌ || pr2_pru1 16 | ||
+ | |- | ||
+ | | P8.08 || ❌ || pr2_pru0 20 | ||
+ | |- | ||
+ | | P8.09 || ❌ || pr2_pru1 06 | ||
+ | |- | ||
+ | | P8.10 || ❌ || pr2_pru1 15 | ||
+ | |- | ||
+ | | P8.11 || pr1_pru0 15 (Out) || pr1_pru0 04 | ||
+ | |- | ||
+ | | P8.12 || pr1_pru0 14 (Out) || pr1_pru0 03 | ||
+ | |- | ||
+ | | P8.13 || ❌ || pr1_pru1 07 | ||
+ | |- | ||
+ | | P8.14 || ❌ || pr1_pru1 09 | ||
+ | |- | ||
+ | | P8.15 || pr1_pru0 15 (In) || pr1_pru1 16 | ||
+ | |- | ||
+ | | P8.16 || pr1_pru0 14 (In) || pr1_pru1 18 | ||
+ | |- | ||
+ | | P8.17 || ❌ || pr2_pru0 15 | ||
+ | |- | ||
+ | | P8.18 || ❌ || pr1_pru1 05 | ||
+ | |- | ||
+ | | P8.19 || ❌ || pr1_pru1 06 | ||
+ | |- | ||
+ | | P8.20 || ❌ || pr2_pru0 03 | ||
+ | |- | ||
+ | | P8.21 || ❌ || pr2_pru0 02 | ||
+ | |- | ||
+ | | P8.22 || ❌ || pr2_pru0 09 | ||
+ | |- | ||
+ | | P8.23 || ❌ || pr2_pru0 08 | ||
+ | |- | ||
+ | | P8.24 || ❌ || pr2_pru0 05 | ||
+ | |- | ||
+ | | P8.25 || ❌ || pr2_pru0 04 | ||
+ | |- | ||
+ | | P8.26 || ❌ || pr1_pru1 17 | ||
+ | |- | ||
+ | | P8.27 || ❌ || pr2_pru1 17 | ||
+ | |- | ||
+ | | P8.28 || ❌ || pr2_pru0 17 | ||
+ | |- | ||
+ | | P8.29 || ❌ || pr2_pru0 18 | ||
+ | |- | ||
+ | | P8.30 || ❌ || pr2_pru0 19 | ||
+ | |- | ||
+ | | P8.31 || ❌ || pr2_pru0 11 | ||
+ | |- | ||
+ | | P8.32 || ❌ || pr2_pru1 00 | ||
+ | |- | ||
+ | | P8.33 || ❌ || pr2_pru0 10 | ||
+ | |- | ||
+ | | P8.34 || ❌ || pr2_pru0 08 | ||
+ | |- | ||
+ | | P8.35 || ❌ || pr2_pru0 09 | ||
+ | |- | ||
+ | | P8.36 || ❌ || pr2_pru0 07 | ||
+ | |- | ||
+ | | P8.37 || ❌ || pr2_pru0 05 | ||
+ | |- | ||
+ | | P8.38 || ❌ || pr2_pru0 06 | ||
+ | |- | ||
+ | | P8.39 || ❌ || pr2_pru0 03 | ||
+ | |- | ||
+ | | P8.40 || ❌ || pr2_pru0 04 | ||
+ | |- | ||
+ | | P8.41 || ❌ || pr2_pru0 01 | ||
+ | |- | ||
+ | | P8.42 || ❌ || pr2_pru0 02 | ||
+ | |- | ||
+ | | P8.43 || ❌ || pr2_pru1 20 | ||
+ | |- | ||
+ | | P8.44 || ❌ || pr2_pru0 00 | ||
+ | |- | ||
+ | | P8.45 || ❌ || pr2_pru1 18 | ||
+ | |- | ||
+ | | P8.46 || ❌ || pr2_pru1 19 | ||
+ | |- | ||
+ | | P9.11 || ❌ || pr2_pru0 14 | ||
+ | |- | ||
+ | | P9.13 || ❌ || pr2_pru0 15 | ||
+ | |- | ||
+ | | P9.14 || ❌ || pr1_pru1 14 | ||
+ | |- | ||
+ | | P9.15 || ❌ || pr1_pru0 5 | ||
+ | |- | ||
+ | | P9.16 || ❌ || pr1_pru1 15 | ||
+ | |- | ||
+ | | P9.17 || ❌ || pr2_pru1 09 | ||
+ | |- | ||
+ | | P9.18 || ❌ || pr2_pru1 08 | ||
+ | |- | ||
+ | | P9.19 || ❌ || pr1_pru1 02 | ||
+ | |- | ||
+ | | P9.20 || ❌ || pr1_pru1 01 | ||
+ | |- | ||
+ | | P9.24 || pr1_pru0 16 (In) || ❌ | ||
+ | |- | ||
+ | | P9.25 || pr1_pru0 07 || pr2_pru1 05 | ||
+ | |- | ||
+ | | P9.26 || pr1_pru1 16 (In) || pr1_pru0 17 | ||
+ | |- | ||
+ | | P9.27 || pr1_pru0 05 || pr1_pru1 11 | ||
+ | |- | ||
+ | | P9.28 || pr1_pru0 03 || pr2_pru1 13 | ||
+ | |- | ||
+ | | P9.29 || pr1_pru0 01 || pr2_pru1 11 | ||
+ | |- | ||
+ | | P9.30 || pr1_pru0 02 || pr2_pru1 12 | ||
+ | |- | ||
+ | | P9.31 || pr1_pru0 00 || pr2_pru1 10 | ||
+ | |- | ||
+ | | P9.41 || pr1_pru0 06 || pr1_pru1 03 | ||
+ | |- | ||
+ | | P9.42 || pr1_pru0 04 || pr1_pru1 10 | ||
+ | |- | ||
+ | |} | ||
+ | |||
+ | <!-- | ||
=== /dev/bone/pru/0.0 === | === /dev/bone/pru/0.0 === | ||
TODO<br> | TODO<br> | ||
Line 310: | Line 1,200: | ||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
− | ! PIN | + | ! PIN !! AM3358 !! AM5729 |
|- | |- | ||
− | | P8.11 | + | | P8.11 || out 15 || I/O 4 |
|- | |- | ||
− | | P8.12 | + | | P8.12 || out 14 || I/O 3 |
|- | |- | ||
− | | P8.15 | + | | P8.15 || in 15 || see [[#/dev/bone/pru/0.1|pru/0.1]] |
|- | |- | ||
− | | P8.16 || | + | | P8.16 || in 14 || see [[#/dev/bone/pru/0.1|pru/0.1]] |
|- | |- | ||
− | | P8.17 | + | | P8.17 || - || I/O 15 |
|- | |- | ||
− | | P9.15 | + | | P9.15 || - || I/O 5 |
|- | |- | ||
− | | P9.24 | + | | P9.24 || in 16 || - |
|- | |- | ||
− | | P9.25 | + | | P9.25 || I/O 7 || see [[#/dev/bone/pru/1.1|pru/1.1]] |
|- | |- | ||
− | | P9.26 | + | | P9.26 || see [[#/dev/bone/pru/0.1|pru0.1]] || I/O 17 |
|- | |- | ||
− | | P9.27 | + | | P9.27 || I/O 5 || see [[#/dev/bone/pru/0.1|pru/0.1]] |
|- | |- | ||
− | | P9.28 | + | | P9.28 || I/O 3 || see [[#/dev/bone/pru/1.1|pru/1.1]] |
|- | |- | ||
− | | P9.29 | + | | P9.29 || I/O 1 || see [[#/dev/bone/pru/1.1|pru/1.1]] |
|- | |- | ||
− | | P9.30 | + | | P9.30 || I/O 2 || see [[#/dev/bone/pru/1.1|pru/1.1]] |
|- | |- | ||
− | | P9.31 | + | | P9.31 || I/O 0 || see [[#/dev/bone/pru/1.1|pru/1.1]] |
|- | |- | ||
− | | P9.41 | + | | P9.41 || I/O 6 || see [[#/dev/bone/pru/0.1|pru/0.1]] |
|- | |- | ||
− | | P9.42 | + | | P9.42 || I/O 4 || see [[#/dev/bone/pru/1.1|pru/1.1]] or [[#/deb/bone/pru/2.0|pru/2.0]] |
|- | |- | ||
− | | USR0 | + | | USR0 || - || I/O 10 |
|- | |- | ||
− | | USR2 | + | | USR2 || - || I/O 8 |
|- | |- | ||
− | | USR3 | + | | USR3 || - || I/O 7 |
|- | |- | ||
− | | USR4 | + | | USR4 || - || I/O 0 |
|} | |} | ||
Line 357: | Line 1,247: | ||
AM3358 PRU1<br> | AM3358 PRU1<br> | ||
AM5279 PRUSS1, PRU1 | AM5279 PRUSS1, PRU1 | ||
− | + | {| class="wikitable" | |
− | + | |- | |
− | + | ! PIN !! AM3358 !! AM5729 | |
− | + | |- | |
+ | | P8.13 || - || I/O 7 | ||
+ | |- | ||
+ | | P8.14 || - || I/O 9 | ||
+ | |- | ||
+ | | P8.15 || - || I/O 16 | ||
+ | |- | ||
+ | | P8.16 || - || I/O 18 | ||
+ | |} | ||
=== /dev/bone/pru/1.0 === | === /dev/bone/pru/1.0 === | ||
Line 379: | Line 1,277: | ||
* P8.9 - I/O 6 (''N/A'' on AM3358) | * P8.9 - I/O 6 (''N/A'' on AM3358) | ||
* P8.10 - I/O 15 (''N/A'' on AM3358) | * P8.10 - I/O 15 (''N/A'' on AM3358) | ||
− | + | --> | |
= GPIO = | = GPIO = | ||
Line 387: | Line 1,285: | ||
= Methodology = | = Methodology = | ||
+ | The methodology for applied in the kernel and software images to expose the software interfaces is to be documented here. The most fundamental elements are the device tree entries, including overlays, and udev rules. | ||
+ | |||
+ | == Device Trees == | ||
== udev rules <ref>[https://github.com/beagleboard/customizations/tree/master/etc/udev/rules.d BeagleBoard customizations udev rules]</ref>== | == udev rules <ref>[https://github.com/beagleboard/customizations/tree/master/etc/udev/rules.d BeagleBoard customizations udev rules]</ref>== | ||
Line 407: | Line 1,308: | ||
# create symlinks for gpios exported to sysfs by DT | # create symlinks for gpios exported to sysfs by DT | ||
SUBSYSTEM=="gpio", ACTION=="add", TEST=="value", ATTR{label}!="sysfs", \ | SUBSYSTEM=="gpio", ACTION=="add", TEST=="value", ATTR{label}!="sysfs", \ | ||
− | RUN+="/bin/mkdir -p /dev/gpio", \ | + | RUN+="/bin/mkdir -p /dev/bone/gpio", \ |
− | RUN+="/bin/ln -sT '/sys/class/gpio/%k' /dev/gpio/%s{label}" | + | RUN+="/bin/ln -sT '/sys/class/gpio/%k' /dev/bone/gpio/%s{label}" |
</pre> | </pre> | ||
+ | |||
+ | = Verification = | ||
+ | TODO: The steps used to verify all of these configurations is to be documented here. It will serve to document what has been tested, how to reproduce the configurations, and how to verify each major triannual release. All faults will be documented in the issue tracker. | ||
= References = | = References = | ||
<references /> | <references /> |
Revision as of 11:12, 2 January 2021
This is a list of symlink interfaces based on BeagleBone Cape header pins.[1][2][3]
Contents
LEDs
The compatibility layer comes with simple reference nodes for attaching LEDs to any gpio pin. The format followed for these nodes is led_P8_## / led_P9_##. The gpio-leds driver is used by these reference nodes internally and allows users to easily create compatible led nodes in overlays for BBBWL, BBB, and BBAI. For the definitions, you can see bbai-bone-buses.dtsi#L16 & bbb-bone-buses.dtsi#L16.
Header | Pin | Overlay |
---|---|---|
P8 | 03 | BONE-LED_P8_03.dts |
P9 | 11 | BONE-LED_P9_11.dts |
LED | Header pin | BBBWL/BBB | BBAI |
---|---|---|---|
/sys/class/leds/led_P8_03 | P8_03 | gpio1_6 | gpio1_24 |
/sys/class/leds/led_P8_04 | P8_04 | gpio1_7 | gpio1_25 |
/sys/class/leds/led_P8_05 | P8_05 | gpio1_2 | gpio7_1 |
/sys/class/leds/led_P8_06 | P8_06 | gpio1_3 | gpio7_2 |
/sys/class/leds/led_P8_07 | P8_07 | gpio2_2 | gpio6_5 |
/sys/class/leds/led_P8_08 | P8_08 | gpio2_3 | gpio6_6 |
/sys/class/leds/led_P8_09 | P8_09 | gpio2_5 | gpio6_18 |
/sys/class/leds/led_P8_10 | P8_10 | gpio2_4 | gpio6_4 |
/sys/class/leds/led_P8_11 | P8_11 | gpio1_13 | gpio3_11 |
/sys/class/leds/led_P8_12 | P8_12 | gpio1_12 | gpio3_10 |
/sys/class/leds/led_P8_13 | P8_13 | gpio0_23 | gpio4_11 |
/sys/class/leds/led_P8_14 | P8_14 | gpio0_26 | gpio4_13 |
/sys/class/leds/led_P8_15 | P8_15 | gpio1_15 | gpio4_3 |
/sys/class/leds/led_P8_16 | P8_16 | gpio1_14 | gpio4_29 |
/sys/class/leds/led_P8_17 | P8_17 | gpio0_27 | gpio8_18 |
/sys/class/leds/led_P8_18 | P8_18 | gpio2_1 | gpio4_9 |
/sys/class/leds/led_P8_19 | P8_19 | gpio0_22 | gpio4_10 |
/sys/class/leds/led_P8_20 | P8_20 | gpio1_31 | gpio6_30 |
/sys/class/leds/led_P8_21 | P8_21 | gpio1_30 | gpio6_29 |
/sys/class/leds/led_P8_22 | P8_22 | gpio1_5 | gpio1_23 |
/sys/class/leds/led_P8_23 | P8_23 | gpio1_4 | gpio1_22 |
/sys/class/leds/led_P8_24 | P8_24 | gpio1_1 | gpio7_0 |
/sys/class/leds/led_P8_25 | P8_25 | gpio1_0 | gpio6_31 |
/sys/class/leds/led_P8_26 | P8_26 | gpio1_29 | gpio4_28 |
/sys/class/leds/led_P8_27 | P8_27 | gpio2_22 | gpio4_23 |
/sys/class/leds/led_P8_28 | P8_28 | gpio2_24 | gpio4_19 |
/sys/class/leds/led_P8_29 | P8_29 | gpio2_23 | gpio4_22 |
/sys/class/leds/led_P8_30 | P8_30 | gpio2_25 | gpio4_20 |
/sys/class/leds/led_P8_31 | P8_31 | gpio0_10 | gpio8_14 |
/sys/class/leds/led_P8_32 | P8_32 | gpio0_11 | gpio8_15 |
/sys/class/leds/led_P8_33 | P8_33 | gpio0_9 | gpio8_13 |
/sys/class/leds/led_P8_34 | P8_34 | gpio2_17 | gpio8_11 |
/sys/class/leds/led_P8_35 | P8_35 | gpio0_8 | gpio8_12 |
/sys/class/leds/led_P8_36 | P8_36 | gpio2_16 | gpio8_10 |
/sys/class/leds/led_P8_37 | P8_37 | gpio2_14 | gpio8_8 |
/sys/class/leds/led_P8_38 | P8_38 | gpio2_15 | gpio8_9 |
/sys/class/leds/led_P8_39 | P8_39 | gpio2_12 | gpio8_6 |
/sys/class/leds/led_P8_40 | P8_40 | gpio2_13 | gpio8_7 |
/sys/class/leds/led_P8_41 | P8_41 | gpio2_10 | gpio8_4 |
/sys/class/leds/led_P8_42 | P8_42 | gpio2_11 | gpio8_5 |
/sys/class/leds/led_P8_43 | P8_43 | gpio2_8 | gpio8_2 |
/sys/class/leds/led_P8_44 | P8_44 | gpio2_9 | gpio8_3 |
/sys/class/leds/led_P8_45 | P8_45 | gpio2_6 | gpio8_0 |
/sys/class/leds/led_P8_46 | P8_46 | gpio2_7 | gpio8_1 |
/sys/class/leds/led_P9_11 | P9_11 | gpio0_30 | gpio8_17 |
/sys/class/leds/led_P9_12 | P9_12 | gpio1_28 | gpio5_0 |
/sys/class/leds/led_P9_13 | P9_13 | gpio0_31 | gpio6_12 |
/sys/class/leds/led_P9_14 | P9_14 | gpio1_18 | gpio4_25 |
/sys/class/leds/led_P9_15 | P9_15 | gpio1_16 | gpio3_12 |
/sys/class/leds/led_P9_16 | P9_16 | gpio1_19 | gpio4_26 |
/sys/class/leds/led_P9_17 | P9_17 | gpio0_5 | gpio7_17 |
/sys/class/leds/led_P9_18 | P9_18 | gpio0_4 | gpio7_16 |
/sys/class/leds/led_P9_19 | P9_19 | gpio0_13 | gpio7_3 |
/sys/class/leds/led_P9_20 | P9_20 | gpio0_12 | gpio7_4 |
/sys/class/leds/led_P9_21 | P9_21 | gpio0_3 | gpio3_3 |
/sys/class/leds/led_P9_22 | P9_22 | gpio0_2 | gpio6_19 |
/sys/class/leds/led_P9_23 | P9_23 | gpio1_17 | gpio7_11 |
/sys/class/leds/led_P9_24 | P9_24 | gpio0_15 | gpio6_15 |
/sys/class/leds/led_P9_25 | P9_25 | gpio3_21 | gpio6_17 |
/sys/class/leds/led_P9_26 | P9_26 | gpio0_14 | gpio6_14 |
/sys/class/leds/led_P9_27 | P9_27 | gpio3_19 | gpio4_15 |
/sys/class/leds/led_P9_28 | P9_28 | gpio3_17 | gpio4_17 |
/sys/class/leds/led_P9_29 | P9_29 | gpio3_15 | gpio5_11 |
/sys/class/leds/led_P9_30 | P9_30 | gpio3_16 | gpio5_12 |
/sys/class/leds/led_P9_31 | P9_31 | gpio3_14 | gpio5_10 |
/sys/class/leds/led_P9_41 | P9_41 | gpio0_20 | gpio6_20 |
/sys/class/leds/led_P9_91 | P9_91 | gpio3_20 | ❌ |
/sys/class/leds/led_P9_42 | P9_42 | gpio0_7 | gpio4_18 |
/sys/class/leds/led_P9_92 | P9_92 | gpio3_18 | ❌ |
/sys/class/leds/led_A15 | A15 | gpio0_19 | ❌ |
I2C
Compatibility layer provides simple I2C bone bus nodes for creating compatible overlays for BBBWL, BBB, & BBAI. The format followed for these nodes is bone_i2c_#. For the definitions, you can see bbai-bone-buses.dtsi#L388 & bbb-bone-buses.dtsi#L403.
Bone bus | BBBWL/BBB | BBAI | SCL | SDA | Overlay |
---|---|---|---|---|---|
/dev/bone/i2c/0 | I2C0 | I2C1 | ❌ (On-board) | ||
/dev/bone/i2c/1 | I2C1 | I2C5 | P9.17 | P9.18 | BONE-I2C1.dts |
/dev/bone/i2c/2 | I2C2 | I2C4 | P9.19 | P9.20 | BONE-I2C2.dts |
/dev/bone/i2c/2a | I2C2 | N/A | P9.21 | P9.22 | BONE-I2C2A.dts |
/dev/bone/i2c/3 | I2C1 | I2C3 | P9.24 | P9.26 | BONE-I2C3.dts |
SPI
SPI bone bus nodes allow creating compatible overlays for BBBWl, BBB, & BBAI. For the definitions, you can see bbai-bone-buses.dtsi#L406 & bbb-bone-buses.dtsi#L423.
Bone bus | BBBWL/BBB | BBAI | MOSI | MISO | CLK | CS | Overlay |
---|---|---|---|---|---|---|---|
/dev/bone/spi/0.x | SPI0 | SPI2 | P9.18 | P9.21 | P9.22 |
|
|
/dev/bone/spi/1.x | SPI1 | SPI3 | P9.30 | P9.29 | P9.31 |
|
UART
UART bone bus nodes allow creating compatible overlays for BBBWl, BBB, & BBAI. For the definitions, you can see bbai-bone-buses.dtsi#L367 & bbb-bone-buses.dtsi#L382.
Bone bus | BBBWL/BBB | BBAI | TX | RX | RTSn | CTSn | Overlays |
---|---|---|---|---|---|---|---|
/dev/bone/uart/0 | UART0 | UART1 | ❌ (console debug header pins) | ||||
/dev/bone/uart/1 | UART1 | UART10 | P9.24 | P9.26 |
|
|
BONE-UART1.dts |
/dev/bone/uart/2 | UART2 | UART3 | P9.21 | P9.22 |
|
|
BONE-UART2.dts |
/dev/bone/uart/3 | UART3 | ❌ | P9.42 | ❌ | ❌ | ❌ | BONE-UART3.dts |
/dev/bone/uart/4 | UART4 | UART5 | P9.13 | P9.11 |
|
|
BONE-UART4.dts |
/dev/bone/uart/5 | UART5 | UART8 | P8.37 | P8.38 | P8.32 | P8.31 | BONE-UART5.dts |
CAN
CAN bone bus nodes allow creating compatible overlays for BBBWl, BBB, & BBAI. For the definitions, you can see bbai-bone-buses.dtsi#L440 & bbb-bone-buses.dtsi#L457.
BBBWL/BBB | BBAI | TX | RX | Overlays |
---|---|---|---|---|
CAN0 | ❌ | P9.20 | P9.19 | BONE-CAN0.dts |
CAN1 | CAN2 | P9.26 | P9.24 | BONE-CAN1.dts |
❌ | CAN1 (rev A2 and later) | P8.8 | P8.7 | TODO |
ADC
BBBWL/BBB | BBAI | overlay |
---|---|---|
Internal | External (STMPE811) | BONE-ADC.dts |
Index | Header pin | BBBWL/BBB | BBAI |
---|---|---|---|
0 | P9_39 | in_voltage0_raw | in_voltage0_raw |
1 | P9_40 | in_voltage1_raw | in_voltage1_raw |
2 | P9_37 | in_voltage2_raw | in_voltage3_raw |
3 | P9_38 | in_voltage3_raw | in_voltage2_raw |
4 | P9_33 | in_voltage4_raw | in_voltage7_raw |
5 | P9_36 | in_voltage5_raw | in_voltage6_raw |
6 | P9_35 | in_voltage6_raw | in_voltage4_raw |
PWM
PWM bone bus nodes allow creating compatible overlays for BBBWl, BBB, & BBAI. For the definitions, you can see bbai-bone-buses.dtsi#L415 & bbb-bone-buses.dtsi#L432
Bone bus | BBBWL/BBB | BBAI | A | B | Overlay |
---|---|---|---|---|---|
/dev/bone/pwm/0 | PWM0 | ❌ | P9.22 | P9.21 | BONE-PWM0.dts |
/dev/bone/pwm/1 | PWM1 | PWM3 | P9.14 | P9.16 | BONE-PWM1.dts |
/dev/bone/pwm/2 | PWM2 | PWM2 | P8.19 | P8.13 | BONE-PWM2.dts |
TIMER PWM
TIMER PWM bone bus uses ti,omap-dmtimer-pwm driver, and timer nodes that allow creating compatible overlays for BBBWl, BBB, & BBAI. For the timer node definitions, you can see bbai-bone-buses.dtsi#L449 & bbb-bone-buses.dtsi#L466.
Bone bus | Header pin | BBBWL/BBB | BBAI | overlay |
---|---|---|---|---|
/sys/bus/platform/devices/bone_timer_pwm_0/ | P8.10 | timer6 | timer10 | BONE-TIMER_PWM_0.dts |
/sys/bus/platform/devices/bone_timer_pwm_1/ | P8.07 | timer4 | timer11 | BONE-TIMER_PWM_1.dts |
/sys/bus/platform/devices/bone_timer_pwm_2/ | P8.08 | timer7 | timer12 | BONE-TIMER_PWM_2.dts |
/sys/bus/platform/devices/bone_timer_pwm_3/ | P9.21 | ❌ | timer13 | BONE-TIMER_PWM_3.dts |
/sys/bus/platform/devices/bone_timer_pwm_4/ | P8.09 | timer5 | timer14 | BONE-TIMER_PWM_4.dts |
/sys/bus/platform/devices/bone_timer_pwm_5/ | P9.22 | ❌ | timer15 | BONE-TIMER_PWM_5.dts |
eCAP
Bone bus | Header pin | peripheral | overlay |
---|---|---|---|
/sys/bus/platform/drivers/ecap/48302100.ecap | P9.42 | eCAP0_in_PWM0_out | BBB-ECAP0.dts |
/sys/bus/platform/drivers/ecap/48304100.ecap | P9.28 | eCAP2_in_PWM2_out | BBB-ECAP2.dts |
Bone bus | Header pin | peripheral | overlay |
---|---|---|---|
/sys/bus/platform/drivers/ecap/4843e100.ecap | P8.15 | eCAP1_in_PWM1_out | BBAI-ECAP1.dts |
/sys/bus/platform/drivers/ecap/48440100.ecap | P8.14 | eCAP2_in_PWM2_out | BBAI-ECAP2.dts |
/sys/bus/platform/drivers/ecap/48440100.ecap | P8.20 | eCAP2_in_PWM2_out | BBAI-ECAP2A.dts |
/sys/bus/platform/drivers/ecap/48442100.ecap | P8.04 | eCAP3_in_PWM3_out | BBAI-ECAP3.dts |
/sys/bus/platform/drivers/ecap/48442100.ecap | P8.26 | eCAP3_in_PWM3_out | BBAI-ECAP3A.dts |
eMMC
BBBWL/BBB | BBAI | overlay |
---|---|---|
MMC2 | MMC3 | BONE-eMMC.dts |
Header pin | Description |
---|---|
P8.3 | DAT6 |
P8.4 | DAT7 |
P8.5 | DAT2 |
P8.6 | DAT3 |
P8.20 | CMD |
P8.21 | CLK |
P8.22 | DAT5 |
P8.23 | DAT4 |
P8.24 | DAT1 |
P8.25 | DAT0 |
LCD
BBBWL/BBB | BBAI | overlay |
---|---|---|
lcdc | dss |
Header pin | Description |
---|---|
P8_45 | lcd_data0 |
P8_46 | lcd_data1 |
P8_43 | lcd_data2 |
P8_44 | lcd_data3 |
P8_41 | lcd_data4 |
P8_42 | lcd_data5 |
P8_39 | lcd_data6 |
P8_40 | lcd_data7 |
P8_37 | lcd_data8 |
P8_38 | lcd_data9 |
P8_36 | lcd_data10 |
P8_34 | lcd_data11 |
P8_35 | lcd_data12 |
P8_33 | lcd_data13 |
P8_31 | lcd_data14 |
P8_32 | lcd_data15 |
P8_27 | lcd_vsync |
P8_29 | lcd_hsync |
P8_28 | lcd_pclk |
P8_30 | lcd_ac_bias_en |
eQEP
Bone bus | BBBWL/BBB | BBAI | A | B | strobe | index | overlay |
---|---|---|---|---|---|---|---|
/bone/eQEP0 | eQEP0 | eQEP2 | P9.42 | P9.27 |
|
|
|
/bone/eQEP1 | eQEP1 | eQEP0 | P8.35 | P8.33 |
|
|
|
/bone/eQEP2 | eQEP2 | eQEP1 | P8.12 | P8.22 |
|
|
|
/bone/eQEP2A | eQEP2 | ❌ | P8.41 | P8.42 | P8.40 | P8.39 |
McASP
BBBWL/BBB | BBAI | overlay |
---|---|---|
McASP0 | McASP1 |
Header pin | Description |
---|---|
P9.12 | aclkr |
P9.25 | ahclkx |
P9.27 | fsr |
P9.28 |
|
P9.29 | fsx |
P9.30 |
|
P9.31 | aclkx |
PRU
The overlay situation for PRUs is a bit more complex than with other peripherals. The mechanism for loading, starting and stopping the PRUs can go through either UIO or RemoteProc.[4]
Header Pin | BBBWL/BBB | BBAI |
---|---|---|
P8.15 | pr1_ecap0 | pr1_ecap0 |
P8.32 | ❌ | pr2_ecap0 |
P9.42 | pr1_ecap0 | ❌ |
UART | TX | RX | RTSn | CTSn | Overlays |
---|---|---|---|---|---|
PRU1 UART0 | P8_31 | P8_33 | P8_34 | P8_35 | |
PRU2 UART0 | P8_43 | P8_44 | P8_45 | P8_46 |
Header Pin | BBBWL/BBB | BBAI |
---|---|---|
P8.03 | ❌ | pr2_pru0 10 |
P8.04 | ❌ | pr2_pru0 11 |
P8.05 | ❌ | pr2_pru0 06 |
P8.06 | ❌ | pr2_pru0 07 |
P8.07 | ❌ | pr2_pru1 16 |
P8.08 | ❌ | pr2_pru0 20 |
P8.09 | ❌ | pr2_pru1 06 |
P8.10 | ❌ | pr2_pru1 15 |
P8.11 | pr1_pru0 15 (Out) | pr1_pru0 04 |
P8.12 | pr1_pru0 14 (Out) | pr1_pru0 03 |
P8.13 | ❌ | pr1_pru1 07 |
P8.14 | ❌ | pr1_pru1 09 |
P8.15 | pr1_pru0 15 (In) | pr1_pru1 16 |
P8.16 | pr1_pru0 14 (In) | pr1_pru1 18 |
P8.17 | ❌ | pr2_pru0 15 |
P8.18 | ❌ | pr1_pru1 05 |
P8.19 | ❌ | pr1_pru1 06 |
P8.20 | ❌ | pr2_pru0 03 |
P8.21 | ❌ | pr2_pru0 02 |
P8.22 | ❌ | pr2_pru0 09 |
P8.23 | ❌ | pr2_pru0 08 |
P8.24 | ❌ | pr2_pru0 05 |
P8.25 | ❌ | pr2_pru0 04 |
P8.26 | ❌ | pr1_pru1 17 |
P8.27 | ❌ | pr2_pru1 17 |
P8.28 | ❌ | pr2_pru0 17 |
P8.29 | ❌ | pr2_pru0 18 |
P8.30 | ❌ | pr2_pru0 19 |
P8.31 | ❌ | pr2_pru0 11 |
P8.32 | ❌ | pr2_pru1 00 |
P8.33 | ❌ | pr2_pru0 10 |
P8.34 | ❌ | pr2_pru0 08 |
P8.35 | ❌ | pr2_pru0 09 |
P8.36 | ❌ | pr2_pru0 07 |
P8.37 | ❌ | pr2_pru0 05 |
P8.38 | ❌ | pr2_pru0 06 |
P8.39 | ❌ | pr2_pru0 03 |
P8.40 | ❌ | pr2_pru0 04 |
P8.41 | ❌ | pr2_pru0 01 |
P8.42 | ❌ | pr2_pru0 02 |
P8.43 | ❌ | pr2_pru1 20 |
P8.44 | ❌ | pr2_pru0 00 |
P8.45 | ❌ | pr2_pru1 18 |
P8.46 | ❌ | pr2_pru1 19 |
P9.11 | ❌ | pr2_pru0 14 |
P9.13 | ❌ | pr2_pru0 15 |
P9.14 | ❌ | pr1_pru1 14 |
P9.15 | ❌ | pr1_pru0 5 |
P9.16 | ❌ | pr1_pru1 15 |
P9.17 | ❌ | pr2_pru1 09 |
P9.18 | ❌ | pr2_pru1 08 |
P9.19 | ❌ | pr1_pru1 02 |
P9.20 | ❌ | pr1_pru1 01 |
P9.24 | pr1_pru0 16 (In) | ❌ |
P9.25 | pr1_pru0 07 | pr2_pru1 05 |
P9.26 | pr1_pru1 16 (In) | pr1_pru0 17 |
P9.27 | pr1_pru0 05 | pr1_pru1 11 |
P9.28 | pr1_pru0 03 | pr2_pru1 13 |
P9.29 | pr1_pru0 01 | pr2_pru1 11 |
P9.30 | pr1_pru0 02 | pr2_pru1 12 |
P9.31 | pr1_pru0 00 | pr2_pru1 10 |
P9.41 | pr1_pru0 06 | pr1_pru1 03 |
P9.42 | pr1_pru0 04 | pr1_pru1 10 |
GPIO
TODO
For each of the pins with a GPIO, there should be a symlink that comes from the names
Methodology
The methodology for applied in the kernel and software images to expose the software interfaces is to be documented here. The most fundamental elements are the device tree entries, including overlays, and udev rules.
Device Trees
udev rules [5]
10-of-symlink.rules[6]
#From: https://github.com/mvduin/py-uio/blob/master/etc/udev/rules.d/10-of-symlink.rules # allow declaring a symlink for a device in DT ATTR{device/of_node/symlink}!="", \ ENV{OF_SYMLINK}="%s{device/of_node/symlink}" ENV{OF_SYMLINK}!="", ENV{DEVNAME}!="", \ SYMLINK+="%E{OF_SYMLINK}", \ TAG+="systemd", ENV{SYSTEMD_ALIAS}+="/dev/%E{OF_SYMLINK}"
TBD
#Also courtesy of mvduin # create symlinks for gpios exported to sysfs by DT SUBSYSTEM=="gpio", ACTION=="add", TEST=="value", ATTR{label}!="sysfs", \ RUN+="/bin/mkdir -p /dev/bone/gpio", \ RUN+="/bin/ln -sT '/sys/class/gpio/%k' /dev/bone/gpio/%s{label}"
Verification
TODO: The steps used to verify all of these configurations is to be documented here. It will serve to document what has been tested, how to reproduce the configurations, and how to verify each major triannual release. All faults will be documented in the issue tracker.