Hi António, good to see you here! I am also fairly new - but i have spent some time with this CPU and might be able to help you a bit. I would recommend you do use an image that is known good. For example boot the Lichepi minmin image. You will find it on the licheepizero.us website.
If this does boot we know we have to search in your u-boot configs and devicetree. Did you use licheepi configs and dts? Using it should be risk free - it has fixed voltage regulators. Good luck! Jakob ninomeg...@gmail.com schrieb am Freitag, 22. März 2024 um 23:14:08 UTC+1: > Hi, all! > > I'm new to the forum and, keeping with the long time tradition, my first > message is asking for help and guidance :D > > I'm developing my own board based on the Allwinner V3S SOC. For most of > the hardware I've followed the schematic for the Lichee Pi Zero. After > struggling with the power supply, I finally (believe) that I got the > timings right and the voltages stable. > > Now I'm trying to understand the U-Boot boot process to see why I'm stuck > on getting the board booting. > > Long story short: U-Boots stops after it outputs the DRAM amount. > > The first thing I did was trying to check the stability of the CPU. For > that, I've injected a code right before the "Trying to boot from" message, > with an infinite loop, doing arithmetical calculations and outputting to > UART. I left this code running overnight and it kept running fine. Alright, > so I assume my CPU is stable... so moving forward... > > Any U-Boot code wizards out there that could give me a hand on identifying > exactly where it is stuck, so I could give me a clue if it's hardware or > firmware related? > > Bellow is my latest log. > - It has verbose 9 level enable everywhere plus CONFIG_TRACE enabled. > - The [number] before the "DRAM" lines was injected by me to try locating > the code line that was outputting it. > - the message "board_init_f finished" I inserted at the last line of the > board_init_f function. > > Thanks a bunch! > > -------------------------------- > U-Boot SPL 2024.04-rc4 (Mar 22 2024 - 18:31:19 -0300) > [5]DRAM: 64 MiB > size=18, ptr=18, limit=100000: 4fd00000 > Trying to boot from MMC1 > common/malloc_simple.c:27-alloc_simple() size=190, ptr=1a8, limit=100000: > common/malloc_simple.c:48-malloc_simple() 4fd00018 > drivers/mmc/mmc.c:196-mmc_select_mode() selecting mode MMC legacy (freq : > 0 MHz) > drivers/mmc/mmc.c:196-mmc_select_mode() selecting mode MMC legacy (freq : > 25 MHz) > drivers/mmc/mmc.c:1821-sd_select_mode_and_width() trying mode SD High > Speed (50MHz) width 4 (at 50 MHz) > drivers/mmc/mmc.c:196-mmc_select_mode() selecting mode MMC legacy (freq : > 25 MHz) > drivers/mmc/mmc.c:1821-sd_select_mode_and_width() trying mode SD High > Speed (50MHz) width 1 (at 50 MHz) > drivers/mmc/mmc.c:196-mmc_select_mode() selecting mode SD High Speed > (50MHz) (freq : 50 MHz) > ers/core/lists.c:201- lists_bind_fdt() bind node leds > drivers/core/lists.c:222- lists_bind_fdt() - attempt to match > compatible string 'gpio-leds' > drivers/core/lists.c:273- lists_bind_fdt() No match for node 'leds' > drivers/core/lists.c:201- lists_bind_fdt() bind node binman > drivers/core/lists.c:206- lists_bind_fdt() Device 'binman' has no > compatible string > drivers/core/lists.c:201- lists_bind_fdt() bind node __symbols__ > drivers/core/lists.c:206- lists_bind_fdt() Device '__symbols__' has > no compatible string > drivers/core/root.c:205- dm_scan_fdt_node() - ignoring disabled > device > drivers/core/lists.c:201- lists_bind_fdt() bind node osc24M_clk > drivers/core/lists.c:222- lists_bind_fdt() - attempt to match > compatible string 'fixed-clock' > drivers/core/lists.c:250- lists_bind_fdt() - found match at > 'fixed_clock': 'fixed-clock' matches 'fixed-clock' > common/malloc_simple.c:27- alloc_simple() size=18, ptr=174, > limit=2000: 602c > common/malloc_simple.c:27- alloc_simple() size=50, ptr=1c4, > limit=2000: 6044 > common/malloc_simple.c:27- alloc_simple() size=28, ptr=1ec, > limit=2000: 6094 > drivers/core/device.c:185- device_bind_common() Bound device osc24M_clk > to root_driver > drivers/core/lists.c:201- lists_bind_fdt() bind node osc32k_clk > drivers/core/lists.c:222- lists_bind_fdt() - attempt to match > compatible string 'fixed-clock' > drivers/core/lists.c:250- lists_bind_fdt() - found match at > 'fixed_clock': 'fixed-clock' matches 'fixed-clock' > common/malloc_simple.c:27- alloc_simple() size=50, ptr=23c, > limit=2000: 60bc > common/malloc_simple.c:27- alloc_simple() size=28, ptr=264, > limit=2000: 610c > drivers/core/device.c:185- device_bind_common() Bound device osc32k_clk > to root_driver > common/malloc_simple.c:27- alloc_simple() size=18, ptr=27c, > limit=2000: 6134 > drivers/core/lists.c:201- lists_bind_fdt() bind node serial@1c28000 > drivers/core/lists.c:222- lists_bind_fdt() - attempt to match > compatible string 'snps,dw-apb-uart' > drivers/core/lists.c:250- lists_bind_fdt() - found match at > 'ns16550_serial': 'ns16550' matches 'snps,dw-apb-uart' > common/malloc_simple.c:27- alloc_simple() size=50, ptr=2cc, > limit=2000: 614c > drivers/core/device.c:95- device_bind_common() - seq=0 > common/malloc_simple.c:27- alloc_simple() size=20, ptr=2ec, > limit=2000: 619c > drivers/core/device.c:185- device_bind_common() Bound device > serial@1c28000 to root_driver > common/malloc_simple.c:27- alloc_simple() size=18, ptr=304, > limit=2000: 61bc > common/malloc_simple.c:27- alloc_simple() size=10, ptr=314, > limit=2000: 61d4 > drivers/core/uclass.c:538-uclass_get_device_by_ofnode() Looking for > clock@1c20000 > drivers/core/uclass.c:389-uclass_find_device_by_ofnode() Looking for > clock@1c20000 > drivers/core/uclass.c:398-uclass_find_device_by_ofnode() - checking > osc24M_clk > drivers/core/uclass.c:398-uclass_find_device_by_ofnode() - checking > osc32k_clk > drivers/core/uclass.c:408-uclass_find_device_by_ofnode() - result for > clock@1c20000: (none) (ret=-19) > drivers/core/uclass.c:541-uclass_get_device_by_ofnode() - result for > clock@1c20000: (none) (ret=-19) > drivers/clk/clk-uclass.c:91-clk_get_by_index_tail() get: returning err=-19 > common/malloc_simple.c:27- alloc_simple() size=18, ptr=32c, > limit=2000: 61e4 > drivers/pinctrl/pinctrl-uclass.c:87-pinctrl_select_state_full() > ns16550_serial serial@1c28000: pinctrl_select_state_full: > uclass_get_device_by_phandle_id: err=-19 > common/malloc_simple.c:27- alloc_simple() size=40, ptr=370, > limit=2000: aligned to 6200 > drivers/core/uclass.c:538-uclass_get_device_by_ofnode() Looking for > clock@1c20000 > drivers/core/uclass.c:389-uclass_find_device_by_ofnode() Looking for > clock@1c20000 > common/malloc_simple.c:27- alloc_simple() size=18, ptr=388, > limit=2000: 6240 > drivers/core/uclass.c:408-uclass_find_device_by_ofnode() - result for > clock@1c20000: (none) (ret=-19) > drivers/core/uclass.c:541-uclass_get_device_by_ofnode() - result for > clock@1c20000: (none) (ret=-19) > > > U-Boot 2024.04-rc4 (Mar 22 2024 - 18:31:19 -0300) Allwinner Technology > > common/malloc_simple.c:27- alloc_simple() size=18, ptr=3a0, > limit=2000: 6258 > CPU: Allwinner V3s (SUN8I 1681) > Model: Lichee Pi Zero > [14]DRAM: 64 MiB > board_init_f finished > -------------------------------- > > > -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. 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