Changes between Version 1 and Version 2 of catalina/DigitalIO


Ignore:
Timestamp:
04/27/2026 09:30:30 PM (2 days ago)
Author:
Tim Harvey
Comment:

updated DIO connector table

Legend:

Unmodified
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  • catalina/DigitalIO

    v1 v2  
    2727
    2828Catalina DIO Mapping (NOTE: Venice hardware manuals should be used for official pinouts):
    29 ||= Board =||= Connector^^^1^^^ =||= Primary Function^^^2^^^ =||= IMX8M_PAD =||= U-Boot^^^3^^^ =||= Linux^^^4^^^ =||= Notes ||
    30 || GW920x  || J19.1 || DIO0 || GPIO[3]:DIO[26] || GPIO[3]:DIO[26] || dio0 || ||
    31 ||         || J19.2 || DIO1 || GPIO[3]:DIO[27] || GPIO[3]:DIO[27] || dio1 || ||
    32 
     29||= Board =||= Connector^^^1^^^ =||= Primary Function^^^2^^^ =||= IMX8M_PAD =||= Pinmux^^^3^^^ =||= U-Boot^^^4^^^ =||= Linux^^^5^^^ =||= Notes ||
     30|| GW920x  || J19.1 || DIO0 || CCM_CLKO1__GPIO3_IO_BIT26 || GPIO3_IO_BIT26 || dio0.gpio-hog || dio0 || ||
     31||         || J19.2 || DIO1 || CCM_CLKO2__GPIO3_IO_BIT27 || GPIO3_IO_BIT27 || dio1.gpio-hog || dio1 || ||
     32||         || J19.3 || RXD || GPIO_IO13__LPUART8_RX || LPUART8_RX || ||   || ttyLP7 ||
     33||         || J19.4 || TXD || GPIO_IO12__LPUART8_TX || LPUART8_TX ||  ||   || ttyLP7 ||
     34||         || J19.5 || SCL || N/A || N/A ||  ||   || i2c@7 ||
     35||         || J19.6 || SDA || N/A || N/A ||  ||   || i2c@7 ||
     36||         || J19.7 || ADC_IN0 || ADC_IN0 || N/A ||  ||   || ||
     37||         || J19.8 || ADC_IN1 || ADC_IN1 || N/A ||  ||   || ||
    33381. This is the connector pinout.
    34392. This is the signal name from the [http://www.gateworks.com/usermanuals ​Catalina hardware manuals]
    35 3. This is the bank_pin name that can be used in U-Boot (see [wiki:gpio#uboot here])
    36 4. This is the name provided to Linux via gpio-line-names in the device-tree (see [wiki:gpio#gpiolib here])
    37 5. Any of the above pin function assignments can be altered by changing the device-tree to change the pinmux which is also where you can specify drive strength, pull-up, pull-down etc. Read more about gaining more GPIOs via pinmuxing [https://trac.gateworks.com/wiki/linux/devicetree#Venice here]
     403. This is how it is pinmuxed
     414. This is the dio name in U-Boot (see [wiki:gpio#uboot here])
     425. This is the dio name in Linux (via gpio-line-names) in the device-tree (see [wiki:gpio#gpiolib here])
     436. Any of the above pin function assignments can be altered by changing the device-tree to change the pinmux which is also where you can specify drive strength, pull-up, pull-down etc. Read more about gaining more GPIOs via pinmuxing [https://trac.gateworks.com/wiki/linux/devicetree#Venice here]
    3844
    3945Note that all signals (unless noted in notes) are 3.3V tolerant.