On 6/14/19 11:09 AM, Mian Yousaf Kaukab wrote:
Hi, I am seeing a hang with dhcp boot on Jetson TX2. Its running firmware from L4T 32.1 with U-Boot from master branch (c2ea87883e) with [1] applied.
I use following command sequence at u-boot prompt to boot:
Tegra186 (P2771-0000-500) # setenv ftdfile tegra186-p2771-0000.dtb Tegra186 (P2771-0000-500) # setenv boot_targets dhcp Tegra186 (P2771-0000-500) # boot
Last thing I see is the following error from TF-A and the board hangs:
What is TF-A?
U-Boot 2019.07-rc4-00137-g6fefd9c475 (Jun 14 2019 - 16:27:34 +0200)
...
TFTP from server xx.xx.xx.xx; our IP address is xx.xx.xx.xx Filename 'aarch64/grub.efi'. Load address: 0x80280000
...
MMC: no card present Scanning disk sdhci@3400000.blk... Disk sdhci@3400000.blk not ready Scanning disk sdhci@3460000.blk... Found 32 disks copying carveout for /host1x@13e00000/display-hub@15200000/display@15200000... copying carveout for /host1x@13e00000/display-hub@15200000/display@15210000... copying carveout for /host1x@13e00000/display-hub@15200000/display@15220000... ERROR: ARI request timed out: req 89 on CPU 4 ASSERT: plat/nvidia/tegra/soc/t186/drivers/mce/ari.c <127> : retries != 0U
That file doesn't exist in U-Boot; I guess it's part of grub.efi? So, this isn't a hang in U-Boot at all. You'd have to get support for that from the authors of Grub I guess.