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From: Peter Korsgaard <peter@korsgaard.com>
To: Neal Frager <nealf@xilinx.com>
Cc: "luca@lucaceresoli.net" <luca@lucaceresoli.net>,
	"giulio.benetti@benettiengineering.com"
	<giulio.benetti@benettiengineering.com>,
	Michal Simek <michals@xilinx.com>,
	"buildroot@buildroot.org" <buildroot@buildroot.org>
Subject: Re: [Buildroot] [PATCH v6 1/2] configs/zynqmp_zcu106: bump ATF/U-Boot/Linux to Xilinx 2022
Date: Wed, 23 Feb 2022 12:11:40 +0100	[thread overview]
Message-ID: <87k0dl6dn7.fsf@dell.be.48ers.dk> (raw)
In-Reply-To: <PH0PR02MB775035975B305CECD5D842F3D73C9@PH0PR02MB7750.namprd02.prod.outlook.com> (Neal Frager's message of "Wed, 23 Feb 2022 11:02:24 +0000")

>>>>> "Neal" == Neal Frager <nealf@xilinx.com> writes:

 > Hi Peter,
 >> Hmm, did you test this on a zcu106 board?

 >> I just got access to a zcu106 rev 1.0 board and gave it a try here, and see nothing on either of the serial ports.

 >> Looking at the u-boot configuration I see that xilinx_zynqmp_virt_defconfig sets:

 >> CONFIG_DEFAULT_DEVICE_TREE="zynqmp-zcu100-revC"

 >> Which seems to have a different uart and pinmuxing setup. Changing
 >> that to zynqmp-zcu106-revA it does boot (but complains here and
 >> there).

 >> This is the first time I use a zcu106, so maybe I am missing
 >> something, but I don't understand how it can work for you with the
 >> zcu100 DTB?

 > Thank you for catching this.  I will take care of getting this corrected with a follow up patch.

 > The way zynqmp_virt_defconfig works is described on our wiki page below:
 > https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/18841973/Build+U-Boot

 > The reason why this was working for me is because I had the DEVICE_TREE environment variable set when building.

 > make distclean
 > make xilinx_zynqmp_virt_defconfig
 > export DEVICE_TREE="zynqmp-zcu106-revA"
 > make

 > What is the proper way for setting an environment variable with
 > buildroot?  Should I add this as a pre-build script in each defconfig?

Instead of working with an environment variable, I think it would be
nicer to tweak the zynqmp_virt_defconfig file with a configuration
fragment with the

CONFIG_DEFAULT_DEVICE_TREE="zynqmp-zcu106-revA"

Line.

This can be done with the BR2_TARGET_UBOOT_CONFIG_FRAGMENT_FILES option.

-- 
Bye, Peter Korsgaard
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  reply	other threads:[~2022-02-23 11:32 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-02-11 14:44 [Buildroot] [PATCH v6 1/2] configs/zynqmp_zcu106: bump ATF/U-Boot/Linux to Xilinx 2022 Neal Frager
2022-02-11 14:44 ` [Buildroot] [PATCH v6 2/2] add configs/zynqmp_zcu102_defconfig Neal Frager
2022-02-12 13:43   ` Peter Korsgaard
2022-02-12 13:13 ` [Buildroot] [PATCH v6 1/2] configs/zynqmp_zcu106: bump ATF/U-Boot/Linux to Xilinx 2022 Luca Ceresoli
2022-02-12 13:18   ` Neal Frager
2022-02-12 13:45   ` Peter Korsgaard
2022-02-12 14:47     ` Neal Frager
2022-02-23 10:05     ` Peter Korsgaard
2022-02-23 12:55       ` Neal Frager
2022-02-12 13:42 ` Peter Korsgaard
2022-02-23 10:04   ` Peter Korsgaard
2022-02-23 11:02     ` Neal Frager
2022-02-23 11:11       ` Peter Korsgaard [this message]
2022-02-23 11:29         ` Neal Frager
2022-02-23 11:18       ` Peter Korsgaard
2022-02-23 11:27         ` Neal Frager
2022-02-23 11:07     ` Neal Frager

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