I am building a yocto image from SC20_Linux SDK, but I have some trouble with how to access Linux after-burn image. How to access Linux after-burn image?
use debug uart to access the console
I have flashed a new Linux firmware, but I cannot access the console by the debug UART.
UART logs:
Format: Log Type - Time(microsec) - Message - Optional Info
Log Type: B - Since Boot(Power On Reset), D - Delta, S - Statistic
S - QC_IMAGE_VERSION_STRING=BOOT.BF.3.1.2.C2-00060
S - IMAGE_VARIANT_STRING=DAASANAZA
S - OEM_IMAGE_VERSION_STRING=HF-SW2-P-LAYNE
S - Boot Config, 0x000000e1
B - 1566 - PBL, Start
B - 4542 - bootable_media_detect_entry, Start
B - 116301 - bootable_media_detect_success, Start
B - 116305 - elf_loader_entry, Start
B - 117591 - auth_hash_seg_entry, Start
B - 117852 - auth_hash_seg_exit, Start
B - 131890 - elf_segs_hash_verify_entry, Start
B - 191346 - PBL, End
B - 204441 - SBL1, Start
B - 262910 - boot_flash_init, Start
D - 30 - boot_flash_init, Delta
B - 269498 - boot_config_data_table_init, Start
D - 3385 - boot_config_data_table_init, Delta - (0 Bytes)
B - 279532 - CDT version:3,Platform ID:8,Major ID:1,Minor ID:0,Subtype:0
B - 286730 - pm_device_init, Start
B - 289994 - pm_device_init, TEST - MSM8909 detected
B - 295301 - pm_device_init, INFO - PM8909 is selected
B - 309697 - PM_SET_VAL:Skip
D - 21380 - pm_device_init, Delta
B - 311100 - sbl1_ddr_set_params, Start
B - 313479 - cpr_init, Start
D - 0 - cpr_init, Delta
B - 319121 - Pre_DDR_clock_init, Start
D - 213 - Pre_DDR_clock_init, Delta
D - 0 - sbl1_ddr_set_params, Delta
B - 332114 - pm_driver_init, Start
B - 338641 - → Charge init
B - 3662 - battery voltage
B - 342149 - boot up
B - 10 - Current status
D - 10705 - pm_driver_init, Delta
B - 354623 - clock_init, Start
D - 122 - clock_init, Delta
B - 354989 - Image Load, Start
D - 21930 - QSEE Image Loaded, Delta - (505472 Bytes)
B - 376980 - Image Load, Start
D - 335 - SEC Image Loaded, Delta - (2048 Bytes)
B - 385367 - sbl1_efs_handle_cookies, Start
D - 732 - sbl1_efs_handle_cookies, Delta
B - 391986 - Image Load, Start
D - 13847 - RPM Image Loaded, Delta - (156564 Bytes)
B - 405894 - Image Load, Start
D - 35685 - APPSBL Image Loaded, Delta - (574836 Bytes)
B - 441579 - QSEE Execution, Start
D - 427 - QSEE Execution, Delta
B - 447282 - SBL1, End
D - 245129 - SBL1, Delta
S - Throughput, 38000 KB/s (1238920 Bytes, 32536 us)
S - DDR Frequency, 400 MHz
Android Bootloader - UART_DM Initialized!!!
[0] welcome to lk
[0] SCM call: 0x2000601 failed with :fffffffc
[0] Failed to initialize SCM
[10] platform_init()
[10] target_init()
[40] SDHC Running in HS200 mode
[150] Done initialization of the card
[150] pm8x41_get_is_cold_boot: cold boot
[150] Waiting for the RPM to populate smd channel table
[160] Not able to search the panel:
[160] panel_operating_mode=0x0
[210] Logo config greater than fb config. Fall back default logo
[250] Config MIPI_VIDEO_PANEL.
[420] Panel CMD: command mode dma test failed
[420] dsi panel init error
[420] Turn off MIPI_VIDEO_PANEL.
[510] Not able to search the panel:
[510] panel_operating_mode=0x0
[600] Logo config greater than fb config. Fall back default logo
[630] Config MIPI_VIDEO_PANEL.
[780] Panel CMD: command mode dma test failed
[790] dsi panel init error
[790] Turn off MIPI_VIDEO_PANEL.
[870] Not able to search the panel:
[870] panel_operating_mode=0x0
[1020] Logo config greater than fb config. Fall back default logo
[1050] Config MIPI_VIDEO_PANEL.
[1210] Panic Lut0 534 Lut1 fff Robest 0
[1210] Turn on MIPI_VIDEO_PANEL.
[1230] Video lane tested successfully
CTRL+C: enter instruction mode
CTRL+C: out instruction mode
[1360] fastboot_init()
[1370] Loading keystore failed status 5 [1470] USB init ept @ 0x8f6ca000
[1490] udc_start()
I used QMulti_DL_V1.6 to flash the “SC20ALDSAR09A01_BP01.003_Linux3.18.071.01.014” firmware.