From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 19 Nov 2024 10:04:27 +0100 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1tDK9r-003lvS-1T for lore@lore.pengutronix.de; Tue, 19 Nov 2024 10:04:27 +0100 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1tDK9q-0005R4-IZ for lore@pengutronix.de; Tue, 19 Nov 2024 10:04:27 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:In-Reply-To:From:References:Cc:To:Subject:MIME-Version:Date: Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=8eLgLVSL29EcY2TKX6ZAEyQeQOEdrRsvFy4rqVgNGa0=; b=o37wxpZL80jtZUE65Bc45JFnsd cXjiz633FsH88d1DHgo9IkvhV4e7f7MLSz37N1LWMgX6MLUk7A3PhdTkPCekLkqApY4PZkC50iv23 nWA3ii/LwMovPhQw7sJWtk+RuO+y8bEuo9zYGalBhYndaugfViejUs9FqEbQgwGd48Nt2rOjdKr93 4vU/7BjimX7isJ2ERxIS9ksEswUcdRxUODI9JlaXB10CTCaQaZ5+eRoAJ8+FUbZQh7CbWePGfjBPH zGvSgHv+ZV63Q+j8E016sceziaGQqoVGLQAfC+0rVZfxUJOJHHOgdSU540/l3dy0Q6LhUSc9uHjSu uulKFzKA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tDK9L-0000000BpXx-1iWA; Tue, 19 Nov 2024 09:03:55 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tDK9H-0000000BpXK-3Ph7 for barebox@lists.infradead.org; Tue, 19 Nov 2024 09:03:53 +0000 Received: from ptz.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::77] helo=[IPV6:::1]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1tDK9G-0005IU-Dl; Tue, 19 Nov 2024 10:03:50 +0100 Message-ID: <55dbe395-08b7-4b72-b2b9-6e2ceee182b5@pengutronix.de> Date: Tue, 19 Nov 2024 10:03:47 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: Stefano Manni Cc: barebox@lists.infradead.org References: Content-Language: en-US From: Ahmad Fatoum In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241119_010351_858447_4B6CF1A1 X-CRM114-Status: GOOD ( 21.47 ) X-BeenThere: barebox@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::133 X-SA-Exim-Mail-From: barebox-bounces+lore=pengutronix.de@lists.infradead.org X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on metis.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.2 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: firmwareload fails for cortex-m7 on imx8mp X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Hi Stefano, On 15.11.24 16:01, Stefano Manni wrote: > Il giorno ven 15 nov 2024 alle ore 15:49 Ahmad Fatoum > > ha scritto: >> >> Hello Stefano, >> >> On 15.11.24 15:47, Stefano Manni wrote: >>> Hello Ahmad, >>> >>> patch [1] works fine when M7 firmware is compiled to run from ITCM. Thank you! >> >> Thanks for testing. >> >>> But when I use exactly the same firmware but compiled to run from DDR >>> (see [2]) I got: >>> >>> barebox@NXP i.MX8MPlus EVK board:/ firmwareload hello-ddr.elf >>> remoteproc0: powering up remoteproc-cm7.of >>> ERROR: remoteproc0: bad phdr da 0x80000000 mem 0x3de4 >>> ERROR: remoteproc0: Failed to load program segments: -22 >>> >>> Note that I can run it both from linux and u-boot. I am surprised it works for you in Linux. To get it working with barebox: 1) run iomem and note where your malloc area begins. Set CONFIG_MALLOC_SIZE, so it starts after 0x90000000 2) Add the following to your DT: &{/reserved-memory} { rproc_reserved: rproc@80000000 { reg = <0 0x80000000 0 0x10000000>; }; }; &remoteproc_cm7 { memory-region = <&rproc_reserved>; }; Do you not have an equivalent memory-region definition in your kernel DT? 3) I found some issues that I just Cc'd you on the fixes for. They may not be necessary for the simple hello-ddr.elf example though. Cheers, Ahmad >>> >>> [1] https://lore.barebox.org/barebox/20241115135242.1251691-1-a.fatoum@pengutronix.de/ >>> [2] https://docs.zephyrproject.org/latest/boards/nxp/imx8mp_evk/doc/index.html#programming-and-debugging-m7 >> >> Can you send me the ELF file, so I can look at the headers myself? >> >> Cheers, >> Ahmad >> >>> >>> Il giorno ven 15 nov 2024 alle ore 15:02 Ahmad Fatoum >>> ha scritto: >>>> >>>> Hello Stefano, >>>> >>>> On 15.11.24 14:43, Stefano Manni wrote: >>>>> Dear all, >>>>> >>>>> I cannot run an ELF image on the M7 core on the imx8mp soc. >>>>> The ELF comes from zephyr and it runs as expected when I load it from linux, >>>>> but in barebox I encounter this error: >>>>> >>>>> barebox@NXP i.MX8MPlus EVK board:/ tftp zephyr.elf >>>>> [################################################################] >>>>> barebox@NXP i.MX8MPlus EVK board:/ firmwareload zephyr.elf >>>>> remoteproc0: powering up remoteproc-cm7.of >>>>> DABT (current EL) exception (ESR 0x96000061) at 0x00000000007e0004 >>>> >>>> https://esr.arm64.dev/#0x96000061 decodes this as >>>> "Abort caused by writing to memory" (Alignment fault) with valid FAR. >>>> >>>> FAR is the addresss listed here (0x00000000007e0004), which is indeed >>>> not divisible by 8. >>>> >>>>> [] (__arch_memcpy+0x48/0x13c) from [] (memcpy+0xc/0x14) >>>> >>>> The optimized memcpy used here expects misalignment not to trap. >>>> >>>>> As you can see the exception happens when rproc_elf_load_segments() tries to >>>>> memcpy a segment where the M7 expects it. The ELF has been compiled to run >>>>> from ITCM memory (0x007E0000-0x007FFFFF). >>>>> >>>>> Do you have any idea? Maybe may I have to put a reserved-memory for ITCM? >>>> >>>> I think I may have broken this when I changed barebox to map everything outside >>>> main memory as uncached. >>>> >>>> I did this, because we 1) don't want to risk the main CPU speculating into I/O >>>> memory and 2) don't want to have to use memory barriers for synchronization. >>>> >>>> The flipside is that drivers that access I/O memory must do this via >>>> readl/writel and friends or via memcpy_io/memset_io. This was already required >>>> before, but some drivers that didn't do this were lucky enough to fly under >>>> the radar. At least for remoteproc, this seems no longer the case. >>>> >>>> I just Cc'd you on a patch to fix this for remoteproc. >>>> Please let me know with a Tested-by if this resolves your issue. >>>> >>>> Cheers, >>>> Ahmad >>>> >>>>> >>>>> Thank you. >>>>> >>>>> Best, >>>>> Stefano >>>>> >>>>> >>>> >>>> >>>> -- >>>> Pengutronix e.K. | | >>>> Steuerwalder Str. 21 | http://www.pengutronix.de/ | >>>> 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | >>>> Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | >>> >> >> >> -- >> Pengutronix e.K. | | >> Steuerwalder Str. 21 | http://www.pengutronix.de/ | >> 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | >> Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |