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********************************************************
Release Notes: Embedded Linux BSP V2.x for Colibri iMX7
********************************************************
Contents:
- U-Boot 2016.11 boot loader
- Linux 4.1.35 kernel, based on 4.1-2.0.x-imx branch of FSL community aka
linux-fslc-imx kernel including NXP's latest 4.1.15 2.0.0 GA release changes
- Angstrom 2016.12/OpenEmbedded morty/Yocto 2.2 based root file system, using
LXDE desktop environment
==> Flashing instructions can be found in the Toradex developer article:
http://developer.toradex.com/knowledge-base/flashing-linux-on-imx7-modules
Licensing:
- proprietary multimedia codecs included for evaluation purpose only
- customer required to obtain proper re-distribution license
********************************************************************************
Linux Image V2.7 Beta 1 (January 12, 2017)
==> Release details can be found in the Toradex developer article:
http://developer.toradex.com/software/linux/linux-software/release-details
********************************************************************************
Linux Image V2.6.1 Beta 1 (September 29, 2016)
- U-Boot boot loader:
- backport patches needed if compiling with GCC 6
- autodetect SoC and set soc environment variable accordingly
- set soc environment variable also in recovery mode (#20568)
- patch device tree with serial number, product id and revision properties to
make that information available in Linux
- configure PMIC for suspend/sleep modes
- fix writing of first firmware copy
- print warning about upcoming NAND change:
WARNING: This module uses an early tapeout/stepping
of the i.MX 7 SoC which suffers a NAND flash issue
requiring a software workaround. This U-Boot version
still implements this workaround, but future U-Boot
versions provided by Toradex will not use the
workaround anymore. You must use a newer Colibri
iMX7 (V1.1B or later) to use future software
versions. For evaluation and testing purposes it will
be possible to keep the current U-Boot and only
update the kernel and root filesystem.
- Linux kernel:
- merge changes from latest NXP release 4.1.15_1.2.0_ga
- backport patches needed if compiling with GCC 6
- enable audio clock earlier (and pinmux MCLK) to properly fix initialization
- enable USB power (USBH_PEN) also on Colibri iMX7 Solo (required for Aster/
Orchid/Viola carrier boards)
- honour native-mode in display timings node
- add SODIMM pin 45 as wake-up key
- control BL_ON (using the PWM backlight drivers enable-gpios property)
- add PWM polarity support (#18164)
- disable internal RTC on Colibri iMX7 Solo (currently not functioning)
- enable USB OTG device/host detection on USBC (#19050)
- improve pinmuxing (disable conflicting pinmux on multiplexed pins and fix
conflicting pinmux on pins which are pulled on carrier board)
- keep 240MHz system clock on which allows to start the Cortex-M4 core via
JTAG
- synchronize defconfig (#19484)
- Linux user-space:
- none
- OpenEmbedded build system:
- split meta-toradex into BSP layers meta-toradex-bsp-common and
meta-toradex-nxp as well as the software layer meta-toradex-demos
- rename the parent directory from stuff to layers
- mv from build/out*/deploy to deploy
- rename TMPDIR from out to tmp
- deploy qt5 tools into the sdk as part of optional angstrom-qt5-x11-image.bb
- sources git.toradex.com tag Colibri_iMX7_LinuxImageV2.6.1Beta1_20160929
- repository linux-toradex branch toradex_imx_4.1.15_1.0.0_ga
- repository u-boot-toradex branch 2015.04-toradex
Known Issues:
- display resolution can be set in the device tree
- flashing the ubifs rootfs with U-Boot may fail on V1.0 HW
********************************************************************************
Linux Image V2.6 Beta 2 (June 30, 2016)
- U-Boot boot loader:
- synchronize/improve memory options
- update: make set<media>update self contained
- net: increase maximum frame size to accommodate VLAN packets
- read kernel and device tree from UBI volumes instead of rootfs
- add RN5T567 PMIC support which enables reliable board reset
- runtime detection of i.MX 7Solo/Dual to construct device tree name
- add fdt_board variable and construct device tree name with carrier board name
(e.g. imx7d-colibri-eval-v3.dtb)
- fixed crash when starting USB on i.MX 7Solo
- increase maximum temperature for booting linux
- Linux kernel:
- updated to 4.1.15 LTS long term stable Linux kernel as part of NXP/Freescale's
1.0.0 GA release
- renamed device trees to add carrier board name as part of the device tree
(e.g. imx7d-colibri-eval-v3.dtb)
- resynchronized resistive touch driver AD7879 with upstream version
- use PMIC for board reset (on reboot)
- fix poweroff
- fix clock control when Cortex-M4 is running
- add MCP2515 and spidev to device tree (the former being the default)
- added support for TouchRevolution Fusion capacitive multi-touch controller
- Linux user-space:
- trdx-extra.inc: add iperf3 to all images
- florence: update to latest version 0.5.4, build without sound and drop
gstreamer 0.10 dependency
- alsa-state: add asound.state for Colibri iMX7 modules
- OpenEmbedded build system:
- further clean-up update.sh update script
- angstrom-qt5-x11-image: add a recipe which deploys qt5 and starts a demo
- sources git.toradex.com tag Colibri_iMX7_LinuxImageV2.6Beta2_20160701
- repository linux-toradex branch toradex_imx_4.1.15_1.0.0_ga
- repository u-boot-toradex branch 2015.04-toradex
Note:
- A new boot schema using static UBI volumes has been introduced. Therefore
downgrading is not directly possible. To downgrade a module, the UBI
partition needs to be cleared manually using "nand erase.part ubi".
Known Issues:
- display resolution can be set in the device tree
- flashing the ubifs rootfs with U-Boot may fail depending on HW
********************************************************************************
Linux Image V2.6 Alpha 1 (March 15, 2016)
- U-Boot boot loader:
- initial release
- Linux kernel:
- initial release
- Linux user-space:
- initial release
- uses ARMv7 hard-float Thumb2 builds (armv7at2hf-vfp-neon)
- sources git.toradex.com tag Colibri_iMX7_LinuxImageV2.6Alpha1_20160315
- repository linux-toradex branch toradex_imx_3.14.52_1.1.0_ga
- repository u-boot-toradex branch 2015.04-toradex
Known Issues:
- poweroff and reboot does not work as expected
- display resolution can be set in the device tree
- flashing the ubifs rootfs with U-Boot may fail depending on HW
- FreeRTOS firmwares for Cortex-M4 core cause Linux to freeze during boot-up
(resolved in latest kernel version toradex_imx_3.14.52_1.1.0_ga-next branch)
********************************************************************************
Notes:
- 115200 baud serial debug console on UARTA aka FFUART (lower X25 on EvalBoards
resp. X27 on V3.1a depending on JP17/19, X13 on Iris) without any handshake
- user account: root with empty password
- UBIFS flash root file system
- opkg package manager
- Linux host used for update preparation requires proper 32-bit execution
environment (e.g. install ia32-libs on 64-bit Ubuntu) and awk (e.g. install
gawk on Ubuntu)
Working on latest image:
- U-Boot boot loader
- environment storage in NAND flash
- Ethernet
- MMC/SD cards
- NAND flash
- RAM size auto detection
- serial console debug UARTA
- Toradex Colibri configuration block handling
- module type auto detection
- USB storage as host on USBH port (i.MX7 Dual only)
- USB storage as host on USBC port
- framebuffer support
- Linux kernel
- analogue audio playback and capture, resistive touch
- analogue input via IIO framework
/sys/bus/iio/devices/iio:device0
Note the 1.8 volt full scale limitation!
- DVFS power management (i.MX 7Dual only)
- Ethernet eth0
- serial number and board revision
- custom Ethernet MAC address
- framebuffer console
- GPIOlib /sys/class/gpio
- I2C via /dev/i2c-X
- NAND flash MTD/UBI/UBIFS with hardware ECC
- PWMs /sys/class/pwm
- RTC (i.MX 7 internal and board level I2C RTC)
- 4-bit MMC/SD card ESDHC2
- SPI (ECSPI) via /dev/spidev2.0, disabled in device tree
- suspend LP1
- CPU temperature sensor via hwmon /sys/class/hwmon/hwmon0/temp1_input
- serial console debug UARTA ttymxc0
- serial UARTA/UARTB and UARTC, including RTS/CTS, ttymxc0/1/2
- USB host port (Note, i.MX 7Solo only on USBC port)
- USB audio driver
- automatic USB device/host detection aka OTG support
- CAN via MCP2515 on Evaluation Board
- Linux user-space
- graphics (LCDIF aka parallel RGB)
- Firefox browser
- LXDE desktop environment
- Display:
- backlight PWM with PWM<A>
- resolution setting via device tree nodes
Not working or not tested:
- U-Boot boot loader
- USB keyboard
- USB device firmware upgrade (DFU) as device on USB OTG port
- Linux kernel
- optional CAN via flexcan can0 and can1, disabled in device tree
- IrDA
- parallel bus
- optional parallel camera interface
- RS-485
- module temperature sensor
- USB webcam
- USB raw HID device /dev/hidrawX
- USB device, ACM, Ethernet CDC, RNDIS
- watchdog
- Linux user-space
- GPIO config tool not available
******************************************************************************
Toradex, January 13, 2017
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