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From: | Philippe Mathieu-Daudé |
Subject: | Re: [PATCH v4 00/20] Add Allwinner H3 SoC and Orange Pi PC Machine |
Date: | Wed, 12 Feb 2020 23:12:08 +0100 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 |
On 2/12/20 10:47 PM, Niek Linnenbank wrote:
Hi all, Short status update regarding this series.Currently I am debugging booting NetBSD 9.0-RC2, which is recently released [1]The problem is that, apparently, RC2 can't mount the rootfs properly: [ 3.1871510] vfs_mountroot: can't open root device [ 3.2141370] cannot mount root, error = 6This only happens using the RC2 filesystem image. However, the RC2 kernel can properly load & boot the RC1 filesystem image, and the RC1 kernel gives the same error on the RC2 filesystem. But I dont think its a NetBSD-RC2 issue, because on a realOrange Pi PC hardware board, this problem does not show.
Linux shows: console: mmc0: Problem switching card into high-speed mode!QEMU MMC support is not in good shape, and high-speed SD card support is limited. I keep procrastinating at reviewing your SDHCI patch hmmmmm.
So you added: * DMA transfers * Direct FIFO I/O * Short/Long format command responses I'd start diffing the trace output of the following events: allwinner_sdhost* sdcard* with both kernels.
I'm comparing traces and adding more low-level debug output to NetBSD and QEMU to find the issue.Also I processed the review remarks which were send so far. Kind regards, Niek [1] https://www.netbsd.org/releases/formal-9/NetBSD-9.0.html
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