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TDA4VM: How should I capture the log printed by tiboot3 from mcu_r5?

Part Number: TDA4VM

step1:I connect the main usb,and I got ttyUSB0-3,ttyUSB0 outputs log printted by A72,

step 2:I connect the mcu usb,and I got ttyUSB4-5.Neither ttyUSB4 nor ttyUSB5 outputs log.

  • U-Boot SPL 2020.01-gf9b0d030d3 (Jun 17 2020 - 15:08:08 +0000)
    SYSFW ABI: 3.0 (firmware rev 0x0014 '20.04.1-v2020.04a (Terrific Lla')
    Trying to boot from MMC2
    Loading Environment from MMC... *** Warning - No MMC card found, using default environment

    Remoteproc 2 started successfully
    Starting ATF on ARM64 core...

    NOTICE: BL31: v2.3():07.00.00.005-dirty
    NOTICE: BL31: Built : 14:33:55, Jun 17 2020

    U-Boot SPL 2020.01-gf9b0d030d3 (Jun 17 2020 - 14:34:25 +0000)
    SYSFW ABI: 3.0 (firmware rev 0x0014 '20.04.1-v2020.04a (Terrific Lla')
    Detected: J7X-BASE-CPB rev E3
    Detected: J7X-INFOTAN-EXP rev E3
    Detected: J7X-VSC8514-ETH rev E2
    Trying to boot from MMC2


    U-Boot 2020.01-gf9b0d030d3 (Jun 17 2020 - 14:34:25 +0000)

    SoC: J721E SR1.0
    Model: Texas Instruments K3 J721E SoC
    Board: J721EX-PM2-SOM rev E7
    DRAM: 4 GiB
    not found for dev hbmc-mux
    Flash: 0 Bytes
    MMC: sdhci@4f80000: 0, sdhci@4fb0000: 1
    Loading Environment from MMC... OK
    In: serial@2800000
    Out: serial@2800000
    Err: serial@2800000
    Detected: J7X-BASE-CPB rev E3
    Detected: J7X-INFOTAN-EXP rev E3
    Detected: J7X-VSC8514-ETH rev E2
    Net: eth0: ethernet@046000000
    Hit any key to stop autoboot: 0
    switch to partitions #0, OK
    mmc1 is current device
    SD/MMC found on device 1
    0 bytes read in 1 ms (0 Bytes/s)
    Loaded env from uEnv.txt
    Importing environment from mmc1 ...
    ## Error: "setup_mmc" not defined
    16654344 bytes read in 346 ms (45.9 MiB/s)
    89857 bytes read in 4 ms (21.4 MiB/s)
    8948 bytes read in 2 ms (4.3 MiB/s)
    ## Flattened Device Tree blob at 82000000
    Booting using the fdt blob at 0x82000000
    Loading Device Tree to 00000000fdda1000, end 00000000fdeb9fff ... OK

    Starting kernel ...

    [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x411fd080]
    [ 0.000000] Linux version 5.4.40-g66cf445b76 (oe-user@oe-host) (gcc version 9.2.1 20191025 (GNU Toolchain for the A-profile Architecture 0
    [ 0.000000] Machine model: Texas Instruments K3 J721E SoC
    [ 0.000000] earlycon: ns16550a0 at MMIO32 0x0000000002800000 (options '')
    [ 0.000000] printk: bootconsole [ns16550a0] enabled
    [ 0.000000] Reserved memory: created DMA memory pool at 0x00000000a0000000, size 1 MiB

  • Hi fan cheng,

    Could you help us understand why do you require prints from r5-spl? Are you seeing any issue in booting?

    Rgds,

    Brijesh

  • I misunderstood  the r5_sbl and the r5_spl。now I'm clear about them