From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 42C0CC433EF for ; Tue, 19 Apr 2022 17:33:42 +0000 (UTC) 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=/8XW1lot1YacbPvsBpBIh7IR+4Lc1NMDlZMQmfLS9ws=; b=zX2vlF3P/tDu4y dEW6VOlAgIRbxYJ87aPozisA8OzDF8x6cC5utDBvsQKI/Wa1Fs1Akac0iCgDl0Nc7gt+dT/DrDNIw aU3xqezryEsJEH+HZnOBYL4Qud8JBF8197vEhV5QEDmmlXQVQbAPGBt5GCi+aqOPoCEFX42wJdnJx iTSl4RoFCPUfXz1BaLejbKtuKiuaiYaW7Hu8iCqIlaUZRLOhfKc+O8sU/tQYrWl3a/Wt3az0eIcej ALXs0aydPKWhVJDZGJRq+dfBG6ZiTqPFl7ynSgMFGa6dyku41H2bns9FhXhp6xB5cbU5kYfdNesFO R/o6L2YFOC+l5Tz2jWzA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1ngrj2-005LPc-Mi; Tue, 19 Apr 2022 17:33:17 +0000 Received: from ams.source.kernel.org ([145.40.68.75]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1ngqyM-004z1t-3n; Tue, 19 Apr 2022 16:45:04 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 8343FB81BDE; Tue, 19 Apr 2022 16:45:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DEE24C385A5; Tue, 19 Apr 2022 16:44:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1650386699; bh=TQPO8Eb4DXbuBVjH4snBze/CPXLx8hYfj8F7j3GxU9A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PkE+S9qLLt/uVvjmX7SVYzOD8H0A2jnCwpUediQL9CiEFuo2XQ7+fzVe5orFR/j+B 1Kn0644vK/CRT07rVNiayly/tbCE5RPqmVa3sV7YLFN50VR4KOu5kwLyvCKy7UdWrd PpC3+mfHHUpdHO2H25Am/SucJvYtHlNwTKkTuKmcMj5yZ3LlaeFsGLmcsHCxsrNU/J cXPXnNTaI9aPH1OycStlSzavEF+2HEuf5KBubApJxMqmt5vWDdLpCukXObZY00wvyD QUu8InZhgmCtgAChwTU5DZn/0HRUIttBKkcHuZWOka//Ki7ysvaMnLhCuX+trrjXmv KfputJ5rHCapw== From: Arnd Bergmann To: robert.jarzmik@free.fr, linux-arm-kernel@lists.infradead.org Cc: Arnd Bergmann , Daniel Mack , Haojian Zhuang , Marek Vasut , Philipp Zabel , Lubomir Rintel , Paul Parsons , Tomas Cech , Sergey Lapin , Thomas Bogendoerfer , Michael Turquette , Stephen Boyd , "Rafael J. Wysocki" , Viresh Kumar , Dmitry Torokhov , Ulf Hansson , Dominik Brodowski , Helge Deller , Mark Brown , Linus Walleij , linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-ide@vger.kernel.org, linux-clk@vger.kernel.org, linux-pm@vger.kernel.org, linux-input@vger.kernel.org, patches@opensource.cirrus.com, linux-leds@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, linux-rtc@vger.kernel.org, linux-usb@vger.kernel.org, linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, alsa-devel@alsa-project.org Subject: [PATCH 47/48] ARM: pxa: remove support for MTD_XIP Date: Tue, 19 Apr 2022 18:38:09 +0200 Message-Id: <20220419163810.2118169-48-arnd@kernel.org> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20220419163810.2118169-1-arnd@kernel.org> References: <20220419163810.2118169-1-arnd@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220419_094502_550072_2DFA8B0C X-CRM114-Status: GOOD ( 19.89 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org From: Arnd Bergmann Using MTD-XIP does not work on multiplatform kernels because it requires SoC specific register accesses to be done from low-level flash handling functions in RAM while the rest of the kernel sits in flash. I found no evidence of anyone still actually using this feature, so remove it from PXA to avoid spending a lot of time on actually making it work. Signed-off-by: Arnd Bergmann --- arch/arm/Kconfig | 1 - arch/arm/mach-pxa/include/mach/mtd-xip.h | 36 ------------------------ 2 files changed, 37 deletions(-) delete mode 100644 arch/arm/mach-pxa/include/mach/mtd-xip.h diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index eef8cbf20045..ace6c08c8ae2 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -413,7 +413,6 @@ config ARCH_DOVE config ARCH_PXA bool "PXA2xx/PXA3xx-based" - select ARCH_MTD_XIP select ARM_CPU_SUSPEND if PM select AUTO_ZRELADDR select COMMON_CLK diff --git a/arch/arm/mach-pxa/include/mach/mtd-xip.h b/arch/arm/mach-pxa/include/mach/mtd-xip.h deleted file mode 100644 index 4b31bef9e50a..000000000000 --- a/arch/arm/mach-pxa/include/mach/mtd-xip.h +++ /dev/null @@ -1,36 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0-only */ -/* - * MTD primitives for XIP support. Architecture specific functions - * - * Do not include this file directly. It's included from linux/mtd/xip.h - * - * Author: Nicolas Pitre - * Created: Nov 2, 2004 - * Copyright: (C) 2004 MontaVista Software, Inc. - */ - -#ifndef __ARCH_PXA_MTD_XIP_H__ -#define __ARCH_PXA_MTD_XIP_H__ - -#include - -/* restored July 2017, this did not build since 2011! */ - -#define ICIP io_p2v(0x40d00000) -#define ICMR io_p2v(0x40d00004) -#define xip_irqpending() (readl(ICIP) & readl(ICMR)) - -/* we sample OSCR and convert desired delta to usec (1/4 ~= 1000000/3686400) */ -#define xip_currtime() readl(OSCR) -#define xip_elapsed_since(x) (signed)((readl(OSCR) - (x)) / 4) - -/* - * xip_cpu_idle() is used when waiting for a delay equal or larger than - * the system timer tick period. This should put the CPU into idle mode - * to save power and to be woken up only when some interrupts are pending. - * As above, this should not rely upon standard kernel code. - */ - -#define xip_cpu_idle() asm volatile ("mcr p14, 0, %0, c7, c0, 0" :: "r" (1)) - -#endif /* __ARCH_PXA_MTD_XIP_H__ */ -- 2.29.2 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/