platform: imx8qxp c0 mek OS: yocto 4.19.35_1.1.0 hardware connection: imx8qxp lvds0 => dummy panel ,  lvds1 => it6263 => display   On imx8qxp there are one DPU(display process unit) and one ISI(image subsystem interface), ISI supports input from dpu.   dpu block diagram: note that only dsi0 and lvds0 can be used for loopback. and this patch only test the lvds0, since lvds support dummy panel.   Please see the readme in the attchment for how to enale this feature.   Note: for ISI loopback,  it needs output of 2x GPIO (4x for HDMI-TX or combo PHY) to pixel_link_receiver_address: For iMX8QM: o LVDS: pixel_link_receiver_address[1:0] = do_gpio_dr[7:6]  o MIPI-DSI: pixel_link_receiver_address[1:0] = do_gpio_dr[7:6] o HDMI-TX: odd_pixel_link_receiver_address[1:0] = do_gpio_dr[7:6],even_pixel_link_receiver_address[1:0] = do_gpio_dr[5:4]   For iMX8QXP: o Combo MIPI-DSI / LVDS: pixel_link0_receiver_address[1:0] = do_gpio_dr[7:6], pixel_link1_receiver_address[1:0] = do_gpio_dr[5:4]   

One chunk of the file system for the Linux Image i.MX 6Dual/6Quad Power Consumption Measurement Linux Image

Q: When trying to mount his SDIO WiFi module (an Azurewave module containing a Marvel 88W8790)  in 4 bit mode, and got error wifi module on iMX6 Smart SD dev board using the alpha kernel (3.5.7+3285970). mwifiex_sdio mmc0:0001:1: WLAN FW is active mwifiex_sdio mmc0:0001:1: mwifiex_cmd_timeout_func: Timeout cmd id (2004.239824) = 0xa9, act = 0x0 mwifiex_sdio mmc0:0001:1: num_data_h2c_failure = 0 mwifiex_sdio mmc0:0001:1: num_cmd_h2c_failure = 0 mwifiex_sdio mmc0:0001:1: num_cmd_timeout = 1 mwifiex_sdio mmc0:0001:1: num_tx_timeout = 0 mwifiex_sdio mmc0:0001:1: last_cmd_index = 1 mwifiex_sdio mmc0:0001:1: last_cmd_resp_index = 0 mwifiex_sdio mmc0:0001:1: last_event_index = 0 mwifiex_sdio mmc0:0001:1: data_sent=1 cmd_sent=1 mwifiex_sdio mmc0:0001:1: ps_mode=1 ps_state=0 +++++++++++++++++++++++ There are only two known issues with the SDHC driver as noted in the release notes and these don't seem to match.  The Linux Reference Manual states the operation of the SDIO was veriifed usign the AR6003.  My assumption is that this is the Silex module we have standardized on.  Was 4 bit mode verified using this module? Does anyone have any idea what could be happening here? A: L3.5.7 is an alpha release, and WiFi function is not stable. The test report shows that open WiFi issue exists. Wifi module sometime can't work on mx6q_smd. After insmod ath, ath6kl_core and ath6kl_sdio. Insert the wifi card, sometime(50%) will display -------------------------- ath6kl: unable to read RX_LOOKAHEAD_VALID                                      ath6kl: Unable to recv target info: -84                                        ath6kl: Failed to init ath6kl core                                             ath6kl_sdio: probe of mmc0:0001:1 failed with error -84    -------------------------- reinsert the wifi card may solve the problem. when execute "udhcpc -i wlan0", sometime (30%) will cause program exception. Sometime can't get the wlan0 ip(program hang). Environment(OS,Platform,Driver, etc): HW: MX6Q_SMD Num014 and Num017 MX6Q_ARD don't have this problem SW: Kernel 3.5.7-1.0.0 GNU/Linux Case ID: TGE-LV-WIFI-0043 Reproduce Steps: #modprobe ath #modprobe ath6kl_core #modprobe ath6kl_sdio insert the wifi card # iwconfig wlan0 mode managed # iwlist wlan0 scanning | grep MAD-wifi #iwconfig wlan0 key 00112233445566778899123456 #iwconfig wlan0 essid MAD-wifi #udhcpc -i wlan0 Attached MX6 ARD WiFi issue also. [Kernel3.5.7_MX6QARD]Wifi:wifi card can't work during suspend and resume. 100% -- Bug detailed description: With wifi card inserted in the board. doing system suspend and resume test. wifi card can't work well after the system suspend and resume. Always report : ath6kl: Unable to decrement the command credit count register: -84             ath6kl: Unable to write to the device: -84                                     ath6kl: bmi_write_memory for uart debug failed                                 ath6kl: Failed to boot hw in resume: -5          Environment(OS,Platform,Driver, etc): HW: MX6QARD -023 Only tried on this platform SW: root@imx6qsabreauto:~# uname -a                                                Linux imx6qsabreauto 3.5.7-1.0.0+3285970 #1 SMP PREEMPT Sat Jun 29 10:20:45 CDT 2013 armv7l GNU/Linux Case ID:  TGE-LV-WIFI-1060 and TGE-LV-WIFI-1062 Reproduce Steps: 1. boot the kernel with wif card inserted 2. doing wifi stress test 3. doing suspend and resume

This patch implements (or exposes) routines to poll the imx uarts. The KGDB drivers need these methods to be implemented or the ttymxc driver is not sufficient. The synthetic CONFIG_CONSOLE_POLL value activates these routines (or CONFIG_SERIAL_MXC_CONSOLE for the polled write). There is still no poll routines in -855-ge067785, which is the September 2010 Linux release from Freescale. Also not in Linux 2.6.36 drivers/serial/imx.c either. $ git diff drivers/serial/mxc_uart.c diff --git a/drivers/serial/mxc_uart.c b/drivers/serial/mxc_uart.c index ae6d2e1..728b607 100644 --- a/drivers/serial/mxc_uart.c +++ b/drivers/serial/mxc_uart.c @@ -1551,6 +1551,28 @@ mxcuart_pm(struct uart_port *port, unsigned int state, unsigned int oldstate)                             clk_enable(umxc->clk);    }  +#ifdef CONFIG_CONSOLE_POLL +/* + * Read a character from the UART. + */ +static inline int mxcuart_console_read_char(struct uart_port *port) +{ +       volatile unsigned int status; +    int ch; + +       do { +               status = readl(port->membase + MXC_UARTUSR2); +       } while ((status & MXC_UARTUSR2_RDR) == 0); +       ch = readl(port->membase + MXC_UARTURXD); +/* Ignore parity errors, etc. */ +/*  status = ch | UART_CREAD_BIT; */ +    ch &= 0xff; + +    return ch; +} +static void mxcuart_console_write_char(struct uart_port *port, char ch); +#endif +    /*!     * This structure contains the pointers to the control functions that are     * invoked by the core serial driver to access the UART hardware. The @@ -1575,14 +1597,18 @@ static struct uart_ops mxc_ops = {                 .config_port = mxcuart_config_port,                 .verify_port = mxcuart_verify_port,                 .send_xchar = mxcuart_send_xchar, +#ifdef CONFIG_CONSOLE_POLL +              .poll_put_char = mxcuart_console_write_char, +              .poll_get_char = mxcuart_console_read_char, +#endif };  -#ifdef CONFIG_SERIAL_MXC_CONSOLE +#if defined(CONFIG_SERIAL_MXC_CONSOLE) || defined (CONFIG_CONSOLE_POLL)     /*     * Write out a character once the UART is ready     */ -static inline void mxcuart_console_write_char(struct uart_port *port, char ch) +static void mxcuart_console_write_char(struct uart_port *port, char ch)    {            volatile unsigned int status;  @@ -1592,6 +1618,10 @@ static inline void mxcuart_console_write_char(struct uart_port *port, char ch)                writel(ch, port->membase + MXC_UARTUTXD);     }  +#endif + +#ifdef CONFIG_SERIAL_MXC_CONSOLE +    /*!     * This function is called to write the console messages through the UART port.     *

Attached is a chunk of the filesystem for the Linux Image https://community.freescale.com/docs/DOC-93887

[中文翻译版] 见附件   原文链接： https://community.nxp.com/docs/DOC-343273 

[中文翻译版] 见附件   原文链接： https://community.nxp.com/docs/DOC-343518 

L5.4.3_1.0.0 release is now available on IMX_SW landing page: BSP Updates and Releases -> Linux ->Linux L5.4.3_1.0.0. Documentation -> Linux -> Linux 5.4.3_1.0.0 Documentation Files available: # Name Description 1 imx-yocto-LF_L5.4.3_1.0.0.zip i.MX L5.4.3_1.0.0 for Linux BSP Documentation. Includes Release Notes, User Guide. 2 LF_v5.4.y-1.0.0_images_MX6QPDLSOLOX.zip i.MX 6QuadPlus, i.MX 6Quad, i.MX 6DualLite, i.MX 6Solox Linux Binary Demo Files 3 LF_v5.4.y-1.0.0_images_MX6SLLEVK.zip i.MX 6SLL EVK Linux Binary Demo Files 4 LF_v5.4.y-1.0.0_images_MX6UL7D.zip i.MX 6UltraLite EVK, 7Dual SABRESD, 6ULL EVK Linux Binary Demo Files 5 LF_v5.4.y-1.0.0_images_MX7ULPEVK.zip i.MX 7ULP EVK Linux Binary Demo Files  6 LF_v5.4.y-1.0.0_images_MX8MMEVK.zip i.MX 8M Mini EVK Linux Binary Demo Files  7 LF_v5.4.y-1.0.0_images_MX8MNEVK.zip i.MX 8M Nano EVK Linux Binary Demo Files  8 LF_v5.4.y-1.0.0_images_MX8MQEVK.zip i.MX 8M Quad EVK Linux Binary Demo files 9 LF_v5.4.y-1.0.0_images_MX8QMMEK.zip i.MX 8QMax MEK Linux Binary Demo files 10 LF_v5.4.y-1.0.0_images_MX8QXPMEK.zip i.MX 8QXPlus MEK Linux Binary Demo files 11 imx-scfw-porting-kit-1.2.10.1.tar.gz System Controller Firmware (SCFW) porting kit v1.2.10.1 for L5.4.3_1.0.0   Target board: MX 8 Series MX 8QuadXPlus MEK Board MX 8QuadMax MEK Board MX 8M Quad EVK Board MX 8M Mini EVK Board MX 8M Nano EVK Board MX 7 Series MX 7Dual SABRE-SD Board MX 7ULP EVK Board MX 6 Series MX 6QuadPlus SABRE-SD and SABRE-AI Boards MX 6Quad SABRE-SD and SABRE-AI Boards MX 6DualLite SDP SABRE-SD and SABRE-AI Boards MX 6SoloX SABRE-SD MX 6UltraLite EVK Board MX 6ULL EVK Board MX 6ULZ EVK Board MX 6SLL EVK Board   What’s New/Features: Please consult the Release Notes.   Known Issues: For known issues and more details please consult the Release Notes.   More information on changes of Yocto, see: README: https://source.codeaurora.org/external/imx/imx-manifest/tree/README?h=imx-linux-zeus ChangeLog: https://source.codeaurora.org/external/imx/imx-manifest/tree/ChangeLog?h=imx-linux-zeus      

This is the procedure and patch to set up Ubuntu 13.10 64bit Linux Host PC and building i.MX6x L3.0.35_4.1.0. It has been tested to build GNOME profile and with FSL Standard MM Codec for i.MX6Q SDB board. A) Basic Requirement: Set up the Linux Host PC using ubuntu-13.10-desktop-amd64.iso Make sure the previous LTIB installation and the /opt/freescale have been removed B) Installed the needed packages to the Linux Host PC $ sudo apt-get update $ sudo apt-get install gettext libgtk2.0-dev rpm bison m4 libfreetype6-dev $ sudo apt-get install libdbus-glib-1-dev liborbit2-dev intltool $ sudo apt-get install ccache ncurses-dev zlib1g zlib1g-dev gcc g++ libtool $ sudo apt-get install uuid-dev liblzo2-dev $ sudo apt-get install tcl dpkg $ sudo apt-get install asciidoc texlive-latex-base dblatex xutils-dev $ sudo apt-get install texlive texinfo $ sudo apt-get install lib32z1 lib32ncurses5 lib32bz2-1.0 $ sudo apt-get install libc6-dev-i386 $ sudo apt-get install u-boot-tools $ sudo apt-get install scrollkeeper $ sudo apt-get install gparted $ sudo apt-get install nfs-common nfs-kernel-server $ sudo apt-get install git-core git-doc git-email git-gui gitk $ sudo apt-get install meld atftpd $ sudo ln -s /usr/lib/x86_64-linux-gnu/librt.so   /usr/lib/librt.so C) Unpack and install the LTIB source package and assume done on the home directory: $ cd ~ $ tar -zxvf L3.0.35_4.1.0_130816_source. tar.gz $ ./L3.0.35_4.1.0_130816_source/install      After that, you will find ~/ltib directory created D) Apply the patch to make L3.0.35_4.1.0 could be installed and compiled on Ubuntu 13.10 64bit OS $ cd ~/ltib $ git apply 0001_make_L3.0.35_4.1.0_compile_on_Ubuntu_13.10_64bit_OS.patch What the patch is doing: a) The patch modifies the following files:    dist/lfs-5.1/base_libs/base_libs.spec    dist/lfs-5.1/m4/m4.spec    dist/lfs-5.1/ncurses/ncurses.spec b) Add the following files to the pkgs directory:    pkgs/m4-1.4.16-1383761043.patch    pkgs/m4-1.4.16-1383761043.patch.md5 E) Then, it is ready to proceed the rest of the LTIB env setup process: $ cd ~/ltib $ ./ltib -m config $ ./ltib Reference: L3.0.35_4.1.0_130816_docs/doc/mx6/Setting_Up_LTIB_host.pdf https://community.freescale.com/message/332385#332385 https://community.freescale.com/thread/271675 https://community.freescale.com/message/360556#360556 m4 compilation issue: 1. https://github.com/hashdist/hashstack/commit/f6be2a58de62327d05e052d89c9aa931d4c926b3 2. https://github.com/hashdist/hashstack/issues/81 rpm-fs package failed to build issue: https://community.freescale.com/message/355771#355771 scrollkeeper is for the gnome-desktop compilation NOTE: When compiling gstreamer, this warning was pop up.  Just ignore it seems okay.

[中文翻译版] 见附件   原文链接： https://community.nxp.com/docs/DOC-343715 

The i.MX 6 D/Q L3.035_1.0.3 patch release is now available on www.freescale.com ·         Files available # Name Description 1 L3.0.35_1.0.3_TEMP_PFD_PATCH This patch release is based on the i.MX 6Dual/6Quad Linux   12.09.01 release. The purpose of this patch release is update thermal sensor   calibration routine and correct the PFD workflow in U-Boot. More details in   the release notes.

gst-launch is the tool to execute GStreamer pipelines. Task Pipeline Looking at caps gst-launch -v  <gst elements> Enable log gst-launch --gst-debug=<element>:<level> gst-launch --gst-debug=videotestsrc:5 videotestsrc ! filesink location=/dev/null

[中文翻译版] 见附件   原文链接： https://community.nxp.com/docs/DOC-341641 

Using a USB Touchscreen on Ubuntu   This example uses a XENARC 706TSA monitor http://www.xenarc.com/product/706tsa.html To use a USB touchscreen on i.MX51 EVK, disable all touchscreen drivers on menuconfig and build the kernel: Device Drivers  --->        Input device support  --->        [ ]   Touchscreens  ---> Download xserver-xorg-input-evtouch (0.8.8-ubuntu3 version) from http://launchpadlibrarian.net/24760784/xserver-xorg-input-evtouch_0.8.8-0ubuntu3_armel.deb. X crash is found if using latest 0.8.8-ubuntu6.1 version. For the details. See https://bugs.launchpad.net/ubuntu/+source/xf86-inputevtouch/+bug/511491 On MX51 EVK board, run “sudo dpkg –i xserver-xorg-input-evtouch_0.8.8-0ubuntu3_armel.deb” to install debian package. Add fdi file by "sudo vi ./usr/share/hal/fdi/policy/20thirdparty/50-eGalax.fdi": <?xml version="1.0" encoding="UTF-8"?> <deviceinfo version="0.2">    <device>       <match key="info.product" contains="eGalax">          <match key="info.capabilities" contains="input">             <merge key="input.x11_driver" type="string">evtouch</merge>             <merge key="input.x11_options.minx" type="string">130</merge>             <merge key="input.x11_options.miny" type="string">197</merge>             <merge key="input.x11_options.maxx" type="string">3945</merge>             <merge key="input.x11_options.maxy" type="string">3894</merge>             <merge key="input.x11_options.Rotate" type="string">CCW</merge>             <merge key="input.x11_options.Swapy" type="string">true</merge>             <merge key="input.x11_options.taptimer" type="string">30</merge>             <merge key="input.x11_options.longtouchtimer" type="string">750</merge>             <merge key="input.x11_options.longtouched_action" type="string">click</merge>             <merge key="input.x11_options.longtouched_button" type="string">3</merge>             <merge key="input.x11_options.oneandhalftap_button" type="string">2</merge>             <merge key="input.x11_options.movelimit" type="string">10</merge>             <merge key="input.x11_options.touched_drag" type="string">1</merge>             <merge key="input.x11_options.maybetapped_action" type="string">click</merge>             <merge key="input.x11_options.maybetapped_button" type="string">1</merge>          </match>       </match>    </device> </deviceinfo> Save above configuration. Calibrating Calibration in made by clicking on System -> Administration -> Calibrate Touchscreen Follow the on screen instructions and reboot the system. Calibrating using Xinput Calibrator Xinput_calibrator is another option to calibrate touchscreen. It can be downloaded at: http://www.freedesktop.org/wiki/Software/xinput_calibrator On i.MX5x Ubuntu, unpack the source code: tar -xzvf xinput_calibrator-0.7.5.tar.gz Install xorg-dev, it's required to build xinput_calibrator sudo apt-get install xorg-dev Configure, build and install xinput_calibrator ./configure ./make ./make install Execute xinput_calibrator. A four-point calibration screen will be shown. Follow the instructions on screen and after complete xinput_calibrator will return the calibration parameters. Replace the given calibration parameters on file /usr/share/hal/fdi/policy/20thirdparty/50-eGalax.fdi and reboot the system.

[中文翻译版] 见附件   原文链接： https://community.nxp.com/docs/DOC-341570 

This example uses the touchscreen that comes with i.MX51 EVK's parallel LCD Download xserver-xorg-input-evtouch (xserver-xorg-input-evtouch_0.8.8-3build1_armel.deb) from https://launchpad.net/ubuntu/lucid/armel/xserver-xorg-input-evtouch/0.8.8-3build1 On i.MX51 EVK board, run “sudo dpkg –i xserver-xorg-input-evtouch_0.8.8-3build1_armel.deb” to install debian package. Remove evdev config file: sudo rm /usr/lib/X11/xorg.conf.d/05-evdev.conf Change the content of 10-evtouch.conf to: sudo vi /usr/lib/X11/xorg.conf.d/10-evtouch.conf Section "InputClass"            Identifier "touchscreen catchall"            MatchIsTouchscreen "on"            Driver "evtouch"            Option "SwapY" "1"            Option "MinX" "32"            Option "MinY" "46"            Option "MaxX" "1001"            Option "MaxY" "967" EndSection   The MinX, MinY, MaxX and MaxY values can be changed to match the exact configuration of your touchscreen Save above configuration and reboot the system.

On power-up of a system, the bootloader performs initial hardware configuration, and is responsible for loading the Linux kernel in memory. Several bootloaders are available which support i.MX SoCs: Barebox (http://www.barebox.org/) RedBoot (http://ecos.sourceware.org/redboot/) U-Boot (http://www.denx.de/wiki/U-Boot/) Qi (http://wiki.openmoko.org/wiki/Qi)

This is the procedure and patch to set up Ubuntu 13.10 64bit Linux Host PC and building i.MX28 L2.6.35_1.1.0_130130. It has been tested to build GNOME profile and with FSL Standard MM codec. A) Basic Requirement: Set up the Linux Host PC using ubuntu-13.10-desktop-amd64.iso Make sure the previous LTIB installation and the /opt/freescale have been removed B) Installed the needed packages to the Linux Host PC $ sudo apt-get update $ sudo apt-get install gettext libgtk2.0-dev rpm bison m4 libfreetype6-dev $ sudo apt-get install libdbus-glib-1-dev liborbit2-dev intltool $ sudo apt-get install ccache ncurses-dev zlib1g zlib1g-dev gcc g++ libtool $ sudo apt-get install uuid-dev liblzo2-dev $ sudo apt-get install tcl dpkg $ sudo apt-get install asciidoc texlive-latex-base dblatex xutils-dev $ sudo apt-get install texlive texinfo $ sudo apt-get install lib32z1 lib32ncurses5 lib32bz2-1.0 $ sudo apt-get install libc6-dev-i386 $ sudo apt-get install u-boot-tools $ sudo apt-get install scrollkeeper $ sudo apt-get install gparted $ sudo apt-get install nfs-common nfs-kernel-server $ sudo apt-get install git-core git-doc git-email git-gui gitk $ sudo apt-get install meld atftpd $ sudo ln -s /usr/lib/x86_64-linux-gnu/librt.so   /usr/lib/librt.so C) Unpack and install the LTIB source package and assume done on the home directory: $ cd ~ $ tar -zxvf L2.6.35_1.1.0_130130_source.tar.gz $ ./L2.6.35_1.1.0_130130_source/install After that, you will find ~/ltib directory created D) Apply the patch to make L2.6.35_1.1.0_130130 could be installed and compiled on Ubuntu 13.10 64bit OS $ cd ~/ltib $ git apply 0001_make_L2.6.35_1.1.0_130130_compile_on_ubuntu_13.10_64bit_OS.patch What the patch is doing: a) The patch modifies the following files: dist/lfs-5.1/base_libs/base_libs.spec dist/lfs-5.1/elftosb/elftosb.spec dist/lfs-5.1/lkc/lkc.spec dist/lfs-5.1/mux_server/mux_server.spec dist/lfs-5.1/ncurses/ncurses.spec b) Add the following files to the pkgs directory: pkgs/elftosb-2.6.35.3-1385779630.patch pkgs/elftosb-2.6.35.3-1385779630.patch.md5 pkgs/lkc-1.4-lib.patch pkgs/lkc-1.4-lib.patch.md5 E) Then, it is ready to proceed the rest of the LTIB env setup process: $ cd ~/ltib $ ./ltib -m config $ ./ltib Reference: L2.6.35_1.1.0_130130_docs/doc/mx28/Setting_Up_LTIB_Host_on_Ubuntu_9_04.pdf https://community.freescale.com/docs/DOC-93394 https://community.freescale.com/message/332385#332385 https://community.freescale.com/thread/271675 https://community.freescale.com/message/360556#360556 scrollkeeper is for the gnome-desktop compilation elftosb compilation issue fixed by added -lm to LIBS in the elftosb-2.6.35.3-1.1.0/makefile.rules NOTE: When compiling gstreamer, this warning was pop up.  Just ignore it seems okay.