From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Petazzoni Date: Thu, 10 Oct 2019 16:33:30 +0200 Subject: [Buildroot] Buildroot for Texas Instruments AM65X - add 2nd toolchain? In-Reply-To: <1570715805181.62328@amazon.com> References: <1570715805181.62328@amazon.com> Message-ID: <20191010163330.358f056d@windsurf> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hello Scott, On Thu, 10 Oct 2019 13:56:45 +0000 "Whitney, Scott" wrote: > We'd also like to create U-Boot, but for the AM65X, U-Boot has at > least one piece (tiboot3.bin) that runs on a 32-bit ARM R5 core, > requiring a 32-bit ARM cross-compiler. That piece configures some > hardware like the DRAM controller and then loads some 64-bit code > U-Boot code into DRAM, after which an A53 64-bit core starts running > it. This piece of software is bare metal, so there's no need for a Linux capable toolchain. We have the same problem on other platforms. A patch series was submitted in February tosolve this problem: http://lists.busybox.net/pipermail/buildroot/2019-February/242251.html People keep asking for this. I guess I should take my evening tonight to finally rework this patch series, and send a new iteration of it. > Has anyone used Buildroot with the AM65X? Is it feasible to > build/configure a 2nd toolchain (32-bit ARM) within Buildroot, > possibly as an additional host package? See the above patch series, which does exactly that. Best regards, Thomas -- Thomas Petazzoni, CTO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com