From: Qu Wenruo <wqu@suse.com> To: Lennart Poettering <lennart@poettering.net> Cc: systemd-devel@lists.freedesktop.org, U-Boot-Denx <u-boot@lists.denx.de>, Linux ARM <linux-arm-kernel@lists.infradead.org> Subject: Re: [systemd-devel] Systemd-boot not properly loading device tree, when loaded by U-boot (ARM64, tested on RK3399) Date: Fri, 17 Sep 2021 21:16:58 +0800 [thread overview] Message-ID: <64f2c0a8-7b4b-7e22-ba7b-b2f5a97afcf0@suse.com> (raw) In-Reply-To: <YUR/8cn+hfIpewYS@gardel-login> On 2021/9/17 19:45, Lennart Poettering wrote: > On Fr, 17.09.21 19:25, Qu Wenruo (wqu@suse.com) wrote: > >> Hi, >> >> I'm recently testing booting my RK3399 boards with the following boot >> sequence: >> >> U-boot -> systemd-boot (EFI payload) -> kernel >> >> Which provides much more flex than plain extlinux conf from U-boot. >> (More choice, easier to write config, runtime kernel change). >> >> So far "kernel" and "initramfs" key work fine. >> >> But I notice that "devicetree" key is not working properly. >> >> The Uboot fdt search path doesn't include "/dtbs" which is used by my >> distro, and my entry config specify the device-tree file like this: >> >> title ManjaroARM boot from nvme >> linux /Image >> devicetree /dtbs/rockchip/rk3399-rockpro64.dtb >> initrd /initramfs-linux.img >> options console=ttyS2,1500000 root=/dev/arm_nvme/root rw loglevel=7 >> >> Thus if systemd-boot doesn't load the correct device-tree, kernel will >> use the default fdt passed from Uboot, which is already out-of-date and >> can cause problems for the upstream kernel I used. >> >> Unfortunately, with above config, after booting the kernel, the fdt is >> the fallback one from Uboot, not loading the proper one specified by >> systemd-boot config. >> >> The proof I went is checking the opp table. >> I have replaced the "/dtbs/rockchip/rk3399-rockpro64.dtb" with a custom >> dtb which uses op1 tables. >> But the kernel only sees a very out-of-dated fdt, which some opp is even >> invalid. >> >> How could I continue debugging the missing link? >> Like what systemd-boot needs to load the device-tree? Or U-boot EFI >> environment lacks certain facility to support systemd-boot? > > Did you see this: > > https://github.com/systemd/systemd/pull/19417 Confirmed this pull fixes the problem. I only need to wait for next release to get it from my distro. Awesome! Thanks, Qu > > (and maybe this: https://github.com/systemd/systemd/pull/20601) > > maybe that addresses your issues? > > Lennart > > -- > Lennart Poettering, Berlin >
WARNING: multiple messages have this Message-ID (diff)
From: Qu Wenruo <wqu@suse.com> To: Lennart Poettering <lennart@poettering.net> Cc: systemd-devel@lists.freedesktop.org, U-Boot-Denx <u-boot@lists.denx.de>, Linux ARM <linux-arm-kernel@lists.infradead.org> Subject: Re: [systemd-devel] Systemd-boot not properly loading device tree, when loaded by U-boot (ARM64, tested on RK3399) Date: Fri, 17 Sep 2021 21:16:58 +0800 [thread overview] Message-ID: <64f2c0a8-7b4b-7e22-ba7b-b2f5a97afcf0@suse.com> (raw) In-Reply-To: <YUR/8cn+hfIpewYS@gardel-login> On 2021/9/17 19:45, Lennart Poettering wrote: > On Fr, 17.09.21 19:25, Qu Wenruo (wqu@suse.com) wrote: > >> Hi, >> >> I'm recently testing booting my RK3399 boards with the following boot >> sequence: >> >> U-boot -> systemd-boot (EFI payload) -> kernel >> >> Which provides much more flex than plain extlinux conf from U-boot. >> (More choice, easier to write config, runtime kernel change). >> >> So far "kernel" and "initramfs" key work fine. >> >> But I notice that "devicetree" key is not working properly. >> >> The Uboot fdt search path doesn't include "/dtbs" which is used by my >> distro, and my entry config specify the device-tree file like this: >> >> title ManjaroARM boot from nvme >> linux /Image >> devicetree /dtbs/rockchip/rk3399-rockpro64.dtb >> initrd /initramfs-linux.img >> options console=ttyS2,1500000 root=/dev/arm_nvme/root rw loglevel=7 >> >> Thus if systemd-boot doesn't load the correct device-tree, kernel will >> use the default fdt passed from Uboot, which is already out-of-date and >> can cause problems for the upstream kernel I used. >> >> Unfortunately, with above config, after booting the kernel, the fdt is >> the fallback one from Uboot, not loading the proper one specified by >> systemd-boot config. >> >> The proof I went is checking the opp table. >> I have replaced the "/dtbs/rockchip/rk3399-rockpro64.dtb" with a custom >> dtb which uses op1 tables. >> But the kernel only sees a very out-of-dated fdt, which some opp is even >> invalid. >> >> How could I continue debugging the missing link? >> Like what systemd-boot needs to load the device-tree? Or U-boot EFI >> environment lacks certain facility to support systemd-boot? > > Did you see this: > > https://github.com/systemd/systemd/pull/19417 Confirmed this pull fixes the problem. I only need to wait for next release to get it from my distro. Awesome! Thanks, Qu > > (and maybe this: https://github.com/systemd/systemd/pull/20601) > > maybe that addresses your issues? > > Lennart > > -- > Lennart Poettering, Berlin > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-09-17 13:17 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-09-17 11:25 Systemd-boot not properly loading device tree, when loaded by U-boot (ARM64, tested on RK3399) Qu Wenruo 2021-09-17 11:25 ` Qu Wenruo 2021-09-17 11:45 ` [systemd-devel] " Lennart Poettering 2021-09-17 11:45 ` Lennart Poettering 2021-09-17 11:48 ` Qu Wenruo 2021-09-17 11:48 ` Qu Wenruo 2021-09-17 13:16 ` Qu Wenruo [this message] 2021-09-17 13:16 ` Qu Wenruo
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