From patchwork Sun Jan 22 11:13:37 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= X-Patchwork-Id: 137231 Return-Path: X-Original-To: incoming-imx@patchwork.ozlabs.org Delivered-To: patchwork-incoming-imx@bilbo.ozlabs.org Received: from merlin.infradead.org (merlin.infradead.org [IPv6:2001:4978:20e::2]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 076FBB6FB6 for ; Sun, 22 Jan 2012 22:19:09 +1100 (EST) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1RovPD-0008FX-GW; Sun, 22 Jan 2012 11:16:15 +0000 Received: from bombadil.infradead.org ([2001:4830:2446:ff00:4687:fcff:fea6:5117]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1RovN7-0007Il-DH for linux-arm-kernel@merlin.infradead.org; Sun, 22 Jan 2012 11:14:05 +0000 Received: from metis.ext.pengutronix.de ([2001:6f8:1178:4:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1RovN5-0002L8-Rk for linux-arm-kernel@lists.infradead.org; Sun, 22 Jan 2012 11:14:04 +0000 Received: from dude.hi.pengutronix.de ([2001:6f8:1178:2:21e:67ff:fe11:9c5c]) by metis.ext.pengutronix.de with esmtp (Exim 4.72) (envelope-from ) id 1RovMp-0006vl-Mv; Sun, 22 Jan 2012 12:13:47 +0100 Received: from ukl by dude.hi.pengutronix.de with local (Exim 4.77) (envelope-from ) id 1RovMp-0003MV-IQ; Sun, 22 Jan 2012 12:13:47 +0100 From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= To: linux-arm-kernel@lists.infradead.org Subject: [RFC PATCH 11/11] HACK! ARM: no, we don't enter in ARM Date: Sun, 22 Jan 2012 12:13:37 +0100 Message-Id: <1327230817-12855-11-git-send-email-u.kleine-koenig@pengutronix.de> X-Mailer: git-send-email 1.7.8.3 In-Reply-To: <20120122111230.GB14835@pengutronix.de> References: <20120122111230.GB14835@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2001:6f8:1178:2:21e:67ff:fe11:9c5c X-SA-Exim-Mail-From: ukl@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-arm-kernel@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20120122_061404_143561_64311B17 X-CRM114-Status: GOOD ( 10.52 ) X-Spam-Score: -1.9 (-) X-Spam-Report: SpamAssassin version 3.3.2 on bombadil.infradead.org summary: Content analysis details: (-1.9 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 T_RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: Catalin Marinas , kernel@pengutronix.de X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+incoming-imx=patchwork.ozlabs.org@lists.infradead.org List-Id: linux-imx-kernel.lists.patchwork.ozlabs.org ... as a Cortex-M3 can only do Thumb-2 ... Signed-off-by: Uwe Kleine-König --- This probably needs a new Kconfig symbol as THUMB2_KERNEL doesn't have the right meaning. Something like "CPU_THUMB_ONLY"? --- arch/arm/kernel/head-nommu.S | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S index dba31af..bb94ce4 100644 --- a/arch/arm/kernel/head-nommu.S +++ b/arch/arm/kernel/head-nommu.S @@ -32,13 +32,14 @@ * numbers for r1. * */ - .arm + + @.arm __HEAD ENTRY(stext) - THUMB( adr r9, BSYM(1f) ) @ Kernel is always entered in ARM. - THUMB( bx r9 ) @ If this is a Thumb-2 kernel, + @THUMB( adr r9, BSYM(1f) ) @ Kernel is always entered in ARM. + @THUMB( bx r9 ) @ If this is a Thumb-2 kernel, THUMB( .thumb ) @ switch to Thumb now. THUMB(1: )