gogoer Posted May 29, 2022 Posted May 29, 2022 Hello. I'm trying to understand how to build u-boot for my board. I have Nanopi Neo Core + Mini Shield and want to buid u-boot loader for it. I have some problems, maybe someone can help me) I decide to try extlinux.conf file create boot menu. First of all i got current version of u-boot (https://github.com/u-boot/u-boot) and configure it with Nanopi Neo default config: make nanopi_neo_defconfig i have next output in console: U-Boot SPL 2022.07-rc3-00073-g4fe629d2e8-dirty (May 29 2022 - 23:11:36 +0300) DRAM: 512 MiB Trying to boot from MMC1 U-Boot 2022.07-rc3-00073-g4fe629d2e8-dirty (May 29 2022 - 23:11:36 +0300) Allwinner Technology CPU: Allwinner H3 (SUN8I 1680) Model: FriendlyARM NanoPi NEO DRAM: 512 MiB Core: 63 devices, 17 uclasses, devicetree: separate WDT: Not starting watchdog@1c20ca0 MMC: mmc@1c0f000: 0, mmc@1c11000: 1 Loading Environment from FAT... *** Warning - bad CRC, using default environment In: serial Out: serial Err: serial Net: phy interface1 eth0: ethernet@1c30000 starting USB... Bus usb@1c1a000: USB EHCI 1.00 Bus usb@1c1a400: USB OHCI 1.0 Bus usb@1c1d000: USB EHCI 1.00 Bus usb@1c1d400: USB OHCI 1.0 scanning bus usb@1c1a000 for devices... 1 USB Device(s) found scanning bus usb@1c1a400 for devices... 1 USB Device(s) found scanning bus usb@1c1d000 for devices... EHCI timed out on TD - token=0xd8d80 pause about 20-30 sec Device NOT ready Request Sense returned 00 00 00 data abort pc : [<5ffaaffe>] lr : [<5ffa1daf>] reloc pc : [<4a020ffe>] lr : [<4a017daf>] sp : 58a9bee8 ip : 0000001c fp : 5ffdf00e r10: 006f656e r9 : 5bf69ec0 r8 : 58a9bf40 r7 : 00000000 r6 : 5ffe4758 r5 : e59ff014 r4 : 00000000 r3 : 00000000 r2 : 00000001 r1 : 00000000 r0 : 00000000 Flags: nZcv IRQs off FIQs off Mode SVC_32 (T) Code: 4604 f8d3 a03c 460f (f8da) 3000 Resetting CPU ... resetting ... then i try to buid sunxi version of bootloader (https://github.com/linux-sunxi/u-boot-sunxi) i have next output: U-Boot SPL 2019.01-rc3-g829407b58f (May 29 2022 - 23:34:45 +0300) DRAM: 512 MiB Trying to boot from MMC1 U-Boot 2019.01-rc3-g829407b58f (May 29 2022 - 23:34:45 +0300) Allwinner Technology CPU: Allwinner H3 (SUN8I 1680) Model: FriendlyElec NanoPi H3 Core DRAM: 512 MiB MMC: MMC0: 01c20060 = 0x4540, 01c20088 = 0x8151000b, 01c202c0 = 0x4540 MMC2: 01c20060 = 0x4540, 01c20090 = 0x80500000, 01c202c0 = 0x4540 mmc@1c0f000: 0, mmc@1c11000: 1 Loading Environment from FAT... *** Warning - bad CRC, using default environment In: serial Out: serial Err: serial Net: eth-1: ethernet@1c30000 starting USB... USB0: USB EHCI 1.00 scanning bus 0 for devices... EHCI timed out on TD - token=0xd8d80 pause for 20-30 sec Device NOT ready Request Sense returned 04 44 81 2 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found Hit any key to stop autoboot: 0 switch to partitions #0, OK mmc0 is current device Scanning mmc 0:1... Found /extlinux/extlinux.conf Retrieving file: /extlinux/extlinux.conf 290 bytes read in 3 ms (93.8 KiB/s) Boot menu 1: Default 2: Local boot script (boot.scr) Enter choice: here it works, but i still have big pause. Maybe someone can explain why i have this pause and how properly crteate bootloader for my board? i want to understand this process and build it by myself.
gogoer Posted May 29, 2022 Author Posted May 29, 2022 Add: i write Armbian 22.05 Focal image to sd card and it has same problem with delay in boot process: U-Boot SPL 2021.10-armbian (May 28 2022 - 08:41:34 +0000) DRAM: 512 MiB Trying to boot from MMC1 U-Boot 2021.10-armbian (May 28 2022 - 08:41:34 +0000) Allwinner Technology CPU: Allwinner H3 (SUN8I 1680) Model: FriendlyARM NanoPi NEO DRAM: 512 MiB MMC: mmc@1c0f000: 0, mmc@1c11000: 1 Loading Environment from FAT... Unable to use mmc 0:1... In: serial Out: serial Err: serial Net: phy interface0 Error: ethernet@1c30000 address not set. No ethernet found. starting USB... Bus usb@1c1a000: USB EHCI 1.00 Bus usb@1c1a400: USB OHCI 1.0 Bus usb@1c1d000: USB EHCI 1.00 Bus usb@1c1d400: USB OHCI 1.0 scanning bus usb@1c1a000 for devices... 1 USB Device(s) found scanning bus usb@1c1a400 for devices... 1 USB Device(s) found scanning bus usb@1c1d000 for devices... EHCI timed out on TD - token=0xd8d80 pause for 20-30 sec Device NOT ready Request Sense returned 00 00 00 2 USB Device(s) found scanning bus usb@1c1d400 for devices... 1 USB Device(s) found scanning usb for storage devices... 0 Storage Device(s) found Autoboot in 1 seconds, press <Space> to stop switch to partitions #0, OK mmc0 is current device is it normal or there is chance to build without this pause?
Werner Posted May 30, 2022 Posted May 30, 2022 There should be I guess since Armbian boot processes do not have such a (long) pause. No idea though how this is managed. I suggest to take a look at our build script to get an idea who Armbian deals with this. https://github.com/armbian/build/blob/87fa0628df82db765e45c4d020bb924de329616a/lib/compilation.sh#L117-L325
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