= Gateworks Venice Family Support
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The Gateworks Venice product family utilizes the NXP i.MX8M Mini (i.MX8MM) SoC (System On Chip) family offering a large variety of peripherals with a focus on Networking, Security, and Media. See [http://www.gateworks.com/product#ventana here] for a product comparison matrix.
= Links
'''Please note: This is a subset of information for Venice, however, please visit our [wiki:WikiStart Main Wiki] for all other information'''
== Software
* [#software Software Section] - Bootloader, Boot Firmware, Operating Systems, Kernel, etc
== Peripheral Support
* Connector Pinouts - see [http://www.gateworks.com/usermanuals Hardware User Manual]
* [wiki:venice/mipi Venice MIPI DSI / CSI ] - LCD Video Display output / Camera Video Input
* [wiki:alternateconnectors Connector and Cable Information]
* [wiki:gettingstarted Serial Console Access]
* [wiki:USB USB Support] - Note the standard Venice family supports USB 2.0 (USB 3.0 not currently offered)
* [wiki:SPI SPI Support]
* [wiki:I2C I2C Support]
* [wiki:gpio/#gpiolib GPIO Control]
* [wiki:gpio/#led_class LED Control]
* [wiki:sata mSATA Information]
* [wiki:gps GPS Support]
* [wiki:canbus CAN Bus Support]
* [wiki:minipciexpressmodules PCIe Accessory Cards]
* [wiki:MMC MultiMediaCard (microSD/eMMC) Information]
* [wiki:gsc Gateworks System Controller (GSC)] - Temperature, voltage, RTC, GPIO, Digital IO, I/O, pushbutton, etc
* [wiki:ventana/expansion Gateworks Expansion Modules - GW16081, GW16082, GW16083]
== Other Info
* [http://www.gateworks.com/product#venice Product Info]
* [http://shop.gateworks.com Where to Buy]
* [wiki:venice/orderoptions Venice Board Ordering Options]
* [wiki:venice/errata Venice Board Errata]
* [wiki:linux/devicetree Linux Kernel Device-Tree info]
* [wiki:eol End of Life - EOL Dates ]
== User Manuals
* [http://www.gateworks.com/usermanuals All Gateworks User Manuals]
* [https://www.nxp.com/products/processors-and-microcontrollers/arm-processors/i-mx-applications-processors/i-mx-8-processors/i-mx-8m-mini-arm-cortex-a53-cortex-m4-audio-voice-video:i.MX8MMINI?tab=Documentation_Tab i.MX8M Mini Reference Manual]
== Entire Raw Index of Venice Wiki Pages
[[TitleIndex(venice)]]
[=#software]
= Venice Software
Venice Software is comprised of many pieces, including the following:
* GSC (Gateworks System Controller) Firmware
* Boot Firmware (ARM Trusted Firmware, DDR controller Firmware, U-Boot Bootloader)
* Operating System (including kernel / rootfs)
Ubuntu is pre-installed on all Venice boards before they ship.
Please view the following links for the appropriate software section:
* [#choosingsoftware Choosing an OS]
* [wiki:venice/bsp#images Pre-built Software Images]
* [wiki:venice/bsp Building & Compiling BSP (Board Support Package) Images] - This includes all the boot firmware & operating System
* [wiki:/venice/firmware Venice Software Installation page]
* [wiki:venice/boot Venice Boot Firmware (up to and including the Bootloader)]
* [wiki:gsc#GSCVersionHistory GSC Firmware]
* [#linux Venice Mainline Linux kernel support]
* [#third_party_linux Booting Third Party Linux Distro's on Venice]
* [#jtag Venice JTAG Programming]
* [wiki:ubuntu/#hello-world.c Native Compile Hello World Example]
* [wiki:buildroot Buildroot Linux]
[=#choosingsoftware]
== Choosing a BSP
Gateworks offers several Board Support Packages for the Venice Product family. Which one we recommend depends a bit upon what your goal is and what your experience level is. ** Note: By default Venice boards are pre-programmed with and Ubuntu root filesystem and Gateworks kernel. **
[=#ubuntu]
=== Ubuntu
Gateworks offers a pre-built Ubuntu root filesystem using the latest Gateworks kernel as well as instructions on how to build your own Ubuntu based distribution.
* [wiki:/venice/bsp Venice Ubuntu Wiki and Software]
Venice pre-built Ubuntu root filesytem image:
- '''Recommended for developers trying to heavily leverage opensource software packages or libraries that are not supported by the other BSP's. This is the most user-friendly for developers new to Embedded Linux but will not produce a very trimmed down filesystem image.'''
- The Gateworks Ubuntu focual image can boot to login in about 26 seconds (removing the U-Boot bootdelay) and takes about 1.5GiB of FLASH storage. Several seconds of that time is spent waiting for the network interfaces to come up which can be disabled. Much of the required space is taken up by various packages we pre-install however it is difficult to get Ubuntu pruned down below 1GiB or booting much faster.
- Able to use mainline kernel.
- Supports all Venice features.
- Documentation provided to use Ubuntu pre-built packages and debootstrap to create a root filesystem in minutes
- Native compilation: no SDK or cross-toolchain needed
[=#buildroot]
=== Buildroot
Gateworks provides documentation on building your own compact and customized Linux distribution using [wiki:buildroot Buildroot]:
- intended for custom applications (low flash and memory footprint)
- a standard buildroot image can boot to login in about 8 seconds (removing the U-Boot bootdelay) and can take less than 32MiB of FLASH storage (both of which can be reduced by turning off the console output and reducing the kernel features)
- Fairly up-to-date and/or vanilla kernel support
- Wide variety of packages
- Console-based build system
- exportable Toolchain available to build apps on a development host outside of the buildroot environment
[=#third_party_linux]
= Third Party Linux Distros =
While Gateworks cannot fully support all Linux distros, it is relatively simple to overlay a Gateworks Venice kernel onto any non-Gateworks third party Linux distro rootfs image.
The following links will describe what is needed:
1. Linux kernel supporting Venice: [wiki:linux/kernel]
2. Root Filesystem: [#rootfs see below]
3. Bootable media: [wiki:linux/blockdev]
[=#rootfs]
=== Root filesystem Sources
There are several sources of pre-built root filesystems that are compatible with Venice. As Venice uses an ARM 64bit based SoC, you need to use something that is compatible with an ARMv8 instruction set. Many pre-built distributions will reference 'arm64' which means 'ARM 64-bit' which is appropriate for the i.MX8MM SoC.
Some popular third-party sources:
* [http://cdimage.ubuntu.com/ubuntu-core/ Ubuntu Core] - this is a minimal filesystem that you can build off of at runtime by adding packages from various repositories.
* [https://releases.linaro.org/ Linaro] - Linaro has several root filesystems including server, nano, developer, core, and ALIP. Each root filesystem will have different things installed for different purposes. Choose carefully which will work for you.
Notes:
* some root filesystems may require you to manually add a user before booting (ie Ubuntu Core)
[=#linux]
[=#mainline-linux]
= Mainline Linux Kernel support
Gateworks actively participates in the development of the Linux kernel.
== Mainline Linux Kernel support
Gateworks actively participates in the development of the Linux kernel.
The following table shows what i.MX8MM support is available in the mainline kernel:
||= item =||= DT compatible =||= driver =||= kconfig =||= kernel =||
|| mmc || fsl,imx7d-usdhc || drivers/mmc/host/sdhci-esdhc-imx.c || CONFIG_MMC_SDHCI_ESDHC_IMX || ||
|| sdma || fsl,imx7d-sdma || drivers/dma/imx-sdma.c || CONFIG_IMX_SDMA || ||
|| uart || fsl,imx6q-uart || imx-uart: drivers/tty/serial/imx.c || CONFIG_SERIAL_IMX || ||
|| ethernet || fsl,imx6sx-fec || fec: drivers/net/ethernet/freescale/fec_main.c || CONFIG_FEC || ||
|| i2c || fsl,imx21-i2c || drivers/i2c/busses/i2c-imx.c || CONFIG_I2C_IMX || ||
|| spi || fsl,imx51-ecspi || drivers/spi/spi-imx.c || CONFIG_SPI_IMX || ||
|| gpio || fsl,imx35-gpio || drivers/gpio/gpio-mxc.c || CONFIG_GPIO_MXC || ||
|| wdog || fsl,imx21-wdt || drivers/watchdog/imx2_wdt.c || CONFIG_IMX2_WDT || ||
|| pwm || fsl,imx27-pwm || drivers/pwm/pwm-imx27.c || CONFIG_PWM_IMX27 || ||
|| audio dai || fsl,imx8mq-sai || fsl-sai: sound/soc/fsl/fsl_sai.c || CONFIG_SND_SOC_FSL_SAI || 5.4 ||
|| caam || fsl,sec-v4.0 || drivers/crypto/caam/* || CONFIG_CRYPTO_DEV_FSL_CAAM || 5.6 ||
|| ddrc (Dyanmic Scaling for DDR controller) || fsl,imx8m-ddrc || drivers/devfreq/imx8m-ddrc.c || ARM_IMX8M_DDRC_DEVFREQ || 5.6 ||
|| thermal || fsl,imx8mm-tmu || drivers/thermal/imx8mm_thermal.c || IMX8MM_THERMAL || 5.7 ||
|| fspi (Flex SPI) || nxp,imx8mm-fspi || drivers/spi/spi-nxp-fspi.c || SPI_NXP_FLEXSPI || 5.7 ||
|| ||
|| usb^^^1^^^ || not yet upstream as of v5.7 - should not be a driver change just need USB PM enabled || || || ||
|| pci^^^1^^^ || not yet upstream as of v5.7 - needs minor driver support PCIE PM || || || ||
|| mipi dsi bridge || not yet upstream as of v5.7 || || || ||
|| mipi csi bridge || not yet upstream as of v5.7 || || || ||
|| vpu/hantro-g1 || not yet upstream as of v5.7 || || || ||
1. While support may not be officially upstream yet, the Gateworks kernel does have support for these devices
See also:
* Prebuilt Venice Kernel: [http://dev.gateworks.com/venice/kernel/]
* Building the Venice Kernel as part of the BSP: [wiki:venice/bsp#kernel]
* Building a Mainline Kernel Wiki: [wiki:linux/kernel]
