Date: Mon, 17 Jul 2023 16:37:34 +0000 From: John <jwd@freebsd.org> To: FreeBSD ARM List <freebsd-arm@freebsd.org> Subject: Supermicro R12SPD Ampere Altra - No valid device tree blob found Message-ID: <ZLVuTpUBjE2hOx1G@FreeBSD.org>
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Hi Folks, I have a new Supermicro system: Supermicro R12SPD BIOS Date:04/26/2023 Rev:1.1a CPU : Ampere(R) Altra(R) Max Processor Booting from the latest media (spot checking older media makes no difference): Boot Media: FreeBSD-14.0-CURRENT-arm64-aarch64-20230713-510fd8313800-264135-disc1.iso Fails here: Loading kernel... /boot/kernel/kernel text=0x2a8 text=0x8ff810 text=0x29b324 data=0x153cc8 data=0x0+0x2c3000 0x8+0x155628+0x8+0x17e504| Loading configured modules... can't find '/etc/hostid' can't find '/boot/entropy' No valid device tree blob found! WARNING! Trying to fire up the kernel, but no device tree blob found! EFI framebuffer information: addr, size 0x10000000, 0x300000 dimensions 1024 x 768 stride 1024 masks 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 If I break into the loader, the fdt command shows the same error message. OK fdt ls No device tree blob found! OK A verbose boot shows no additional information. I've poked around in the source and don't see an obvious fix for this. Web searches have also not provided any obvious solutions. Any ideas? Thoughts? Thanks, John
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