Changes between Version 2 and Version 3 of SPI


Ignore:
Timestamp:
11/30/2017 09:37:44 PM (23 months ago)
Author:
Tim Harvey
Comment:

added newport details

Legend:

Unmodified
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  • SPI

    v2 v3  
    1414
    1515
     16== On-Board SPI controllers ==
     17
     18=== Newport / Ventana ===
     19Various Gateworks boards support 3.3V TTL SPI to an off-board expansion connector with a single CS#:
     20||= Family =||= Board   =||= Device   =||= Connector =||
     21|| Newport  || GW630x    || SPI0       || J8          ||
     22||          || GW640x    || SPI0       || J8          ||
     23|| ||
     24|| Ventana  || GW552x    || ECSPI3     || J24         ||
     25||          || GW54xx-E+ || ECSPI2     || J32         ||
     26
     27Pinout (all signals are 3.3V TTL):
     28 * 1 - MOSI
     29 * 2 - MISO
     30 * 3 - SCLK
     31 * 4 - SS0#
     32 * 5 - 3.3V
     33 * GND
     34
     35=== Laguna ===
     36While SPI is used for on-board FLASH storage for many Laguna boards, it also is brought out to the J9 expansion connector available on the Laguna GW2388:
     37 * J9.2 - CS#
     38 * J9.4 - SCLK
     39 * J9.6 - MISO
     40 * J9.8 - MOSI
     41 * J9.10 - GND
     42
     43[[Image(spi2388.png,800px)]]
     44
     45
     46[=#usb]
    1647== USB Expansion devices ==
    1748A SPI master can also be added via USB expansion. For example:
     
    2051
    2152
    22 == Ventana ==
    23 
    24 === GW5220 ===
    25 The i.MX6 Ventana GW5220 brings out the IMX6 ECSPI3 bus to the 6-pin J24 expansion connector for connection to a 3.3V TTL SPI slave device:
    26  * J24.1 - MOSI
    27  * J24.2 - MISO
    28  * J24.3 - SCLK
    29  * J24.4 - SS0#
    30  * J24.5 - 3.3V
    31  * J24.6 - GND
    32 
    33 === GW54xx (Revision E+) ===
    34 The i.MX6 Ventana GW54xx brings out the IMX6 ECSPI2 bus to the 6-pin J32 expansion connector for connection to a 3.3V TTL SPI slave device:
    35  * J32.1 - MOSI
    36  * J32.2 - MISO
    37  * J32.3 - SCLK
    38  * J32.4 - SS0#
    39  * J32.5 - 3.3V
    40  * J32.6 - GND
    41 
    42 === Adding Kernel Support for Specific SPI Devices ===
     53[=#spidev]
     54== Adding Kernel Support for Specific SPI Devices ==
    4355In order to support the specific device you plan to connect an addition to the GW5220 device tree must be made.
    4456
     
    6880When searching for your device ID string or its controlling driver, searching via a LXR site like the one at [https://lxr.missinglinkelectronics.com/linux missing link electronics] for your device name can be helpful.
    6981
    70 
    71 == Laguna ==
    72 While SPI is used for on-board FLASH storage for many Laguna boards, it also is brought out to the J9 expansion connector available on the Laguna GW2388:
    73  * J9.2 - CS#
    74  * J9.4 - SCLK
    75  * J9.6 - MISO
    76  * J9.8 - MOSI
    77  * J9.10 - GND
    78 
    79 [[Image(spi2388.png,800px)]]
    80 
    8182== spidev - Userspace SPI API ==
    8283