From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 02 Jun 2021 16:39:52 +0200 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by lore.white.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1loS2C-00041h-9D for lore@lore.pengutronix.de; Wed, 02 Jun 2021 16:39:52 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:e::133]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1loS26-0008GD-1l for lore@pengutronix.de; Wed, 02 Jun 2021 16:39:52 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=wWdxDlUimRzLxVj6J3T+57XUQqXFtZOd3XG3vK9JHss=; b=b4/BveLUkXP5Bm P+Ocykozmo2r8/mIR7SxWX5ZwwNHA8G2pUd8Z2htWJgc2n/R7Xm/l1OgoY3DhtdCgGPLG6OxxX+ch lUVC53LcD8lNno/vfEuo0V3eaEvTxh9lfqy1+JtzcWyVgzOL3zvcbX6Ml2dldTklgmqNEtYPbxcbT jp+COAWlxKvH7Upe4ENvLnKsIfbkJvOGbtNws5xb6uHWZI3nKb3AUgqmWEP8niBG59ZWTfe94aFLL ggkVOyaX4hJeMkt5d7xxwiCO3ix3Na4Mp8TdWyIX7LqWOqAhESiiK5BEHyyfEnNhLYWBzqh9U76Rj VdRBQhAiSVE6yPEYJYNw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1loS0P-004cQh-Jh; Wed, 02 Jun 2021 14:38:01 +0000 Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1loRxY-004ayD-V3 for barebox@lists.infradead.org; Wed, 02 Jun 2021 14:35:11 +0000 Received: from dude.hi.pengutronix.de ([2001:67c:670:100:1d::7]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1loRxW-0006tP-Gx; Wed, 02 Jun 2021 16:35:02 +0200 Received: from afa by dude.hi.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1loRxV-0006hT-ME; Wed, 02 Jun 2021 16:35:01 +0200 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: Ahmad Fatoum Date: Wed, 2 Jun 2021 16:34:44 +0200 Message-Id: <20210602143453.23097-5-a.fatoum@pengutronix.de> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210602143453.23097-1-a.fatoum@pengutronix.de> References: <20210602143453.23097-1-a.fatoum@pengutronix.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210602_073505_229049_0BF0A67C X-CRM114-Status: GOOD ( 11.83 ) 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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:e::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.ext.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-4.6 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: [PATCH v3 04/13] MIPS: qemu-malta: generate swapped image as part of multi-image build X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.ext.pengutronix.de) Having to manually swap the words in the MIPS Malta image for QEMU little endian emulation is annoying. Have the multi-image build for Malta generate a second .swapped image that can be readily used if needed. Signed-off-by: Ahmad Fatoum --- Documentation/boards/mips/qemu-malta.rst | 16 ++++------------ images/.gitignore | 1 + images/Makefile | 2 +- images/Makefile.malta | 10 +++++++++- 4 files changed, 15 insertions(+), 14 deletions(-) diff --git a/Documentation/boards/mips/qemu-malta.rst b/Documentation/boards/mips/qemu-malta.rst index e188ae8c642a..fd37d5edb229 100644 --- a/Documentation/boards/mips/qemu-malta.rst +++ b/Documentation/boards/mips/qemu-malta.rst @@ -10,31 +10,23 @@ QEMU run string: qemu-system-mips -nodefaults -M malta -m 256 \ -device VGA -serial stdio -monitor null \ - -bios barebox-flash-image + -bios ./images/barebox-qemu-malta.img Little-endian mode ------------------ -Running little-endian Malta is a bit tricky. In little-endian mode the 32bit words in the boot flash image are swapped, a neat trick which allows bi-endian firmware. -You have to swap words of ``zbarebox.bin`` image, e.g.: - -.. code-block:: sh - - echo arch/mips/pbl/zbarebox.bin \ - | cpio --create \ - | cpio --extract --swap --unconditional - -QEMU run string: +The barebox build generates a second ``./images/barebox-qemu-malta.img.swapped`` +image that can be used in this case, e.g.: .. code-block:: sh qemu-system-mipsel -nodefaults -M malta -m 256 \ -device VGA -serial stdio -monitor null \ - -bios barebox-flash-image + -bios ./images/barebox-qemu-malta.img.swapped Using GXemul diff --git a/images/.gitignore b/images/.gitignore index eafdb44b5bdd..3a9a77dad16e 100644 --- a/images/.gitignore +++ b/images/.gitignore @@ -32,3 +32,4 @@ barebox.sum *.mvebu1img *.stm32 *.nmon +*.swapped diff --git a/images/Makefile b/images/Makefile index c185982c17ed..cc330d957597 100644 --- a/images/Makefile +++ b/images/Makefile @@ -218,5 +218,5 @@ $(flash-list): $(image-y-path) clean-files := *.pbl *.pblb *.map start_*.imximg *.img barebox.z start_*.kwbimg \ start_*.kwbuartimg *.socfpgaimg *.mlo *.t20img *.t20img.cfg *.t30img \ *.t30img.cfg *.t124img *.t124img.cfg *.mlospi *.mlo *.mxsbs *.mxssd \ - start_*.simximg start_*.usimximg *.zynqimg *.image + start_*.simximg start_*.usimximg *.zynqimg *.image *.swapped clean-files += pbl.lds diff --git a/images/Makefile.malta b/images/Makefile.malta index 5739ec464092..96d7b86b1187 100644 --- a/images/Makefile.malta +++ b/images/Makefile.malta @@ -1,3 +1,11 @@ +quiet_cmd_bswap32_image = BSWAP4 $@ + cmd_bswap32_image = cp $< $@ && \ + truncate -s %4 $@ && \ + objcopy -I binary --reverse-byte=4 $@ + +$(obj)/%.img.swapped: $(obj)/%.img FORCE + $(call if_changed,bswap32_image) + pblb-$(CONFIG_BOARD_QEMU_MALTA) += start_qemu_malta FILE_barebox-qemu-malta.img = start_qemu_malta.pblb -image-$(CONFIG_BOARD_QEMU_MALTA) += barebox-qemu-malta.img +image-$(CONFIG_BOARD_QEMU_MALTA) += barebox-qemu-malta.img barebox-qemu-malta.img.swapped -- 2.29.2 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox