From patchwork Tue Aug 9 19:41:22 2011 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Linus Walleij X-Patchwork-Id: 1050912 Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by demeter2.kernel.org (8.14.4/8.14.4) with ESMTP id p79JgEw0021583 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 9 Aug 2011 19:42:34 GMT Received: from canuck.infradead.org ([2001:4978:20e::1]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1QqsBe-0006HQ-74; Tue, 09 Aug 2011 19:42:03 +0000 Received: from localhost ([127.0.0.1] helo=canuck.infradead.org) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1QqsBd-0006wN-E5; Tue, 09 Aug 2011 19:42:01 +0000 Received: from eu1sys200aog120.obsmtp.com ([207.126.144.149]) by canuck.infradead.org with smtps (Exim 4.76 #1 (Red Hat Linux)) id 1QqsBH-0006sA-Qd for linux-arm-kernel@lists.infradead.org; Tue, 09 Aug 2011 19:41:41 +0000 Received: from beta.dmz-ap.st.com ([138.198.100.35]) (using TLSv1) by eu1sys200aob120.postini.com ([207.126.147.11]) with SMTP ID DSNKTkGNamvACPo9nrmerEbRTj0hfuQs16jr@postini.com; Tue, 09 Aug 2011 19:41:39 UTC Received: from zeta.dmz-ap.st.com (ns6.st.com [138.198.234.13]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id 9ABCA115; Tue, 9 Aug 2011 19:41:27 +0000 (GMT) Received: from relay2.stm.gmessaging.net (unknown [10.230.100.18]) by zeta.dmz-ap.st.com (STMicroelectronics) with ESMTP id DC3A9F47; Tue, 9 Aug 2011 19:41:26 +0000 (GMT) Received: from exdcvycastm022.EQ1STM.local (alteon-source-exch [10.230.100.61]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (Client CN "exdcvycastm022", Issuer "exdcvycastm022" (not verified)) by relay2.stm.gmessaging.net (Postfix) with ESMTPS id 3CF59A8065; Tue, 9 Aug 2011 21:41:18 +0200 (CEST) Received: from localhost.localdomain (10.230.100.153) by smtp.stericsson.com (10.230.100.30) with Microsoft SMTP Server (TLS) id 8.3.83.0; Tue, 9 Aug 2011 21:41:25 +0200 From: Linus Walleij To: Subject: [PATCH 1/5] mach-u300: retire odd singlemem variant Date: Tue, 9 Aug 2011 21:41:22 +0200 Message-ID: <1312918882-11828-1-git-send-email-linus.walleij@stericsson.com> X-Mailer: git-send-email 1.7.3.2 MIME-Version: 1.0 X-CRM114-Version: 20090807-BlameThorstenAndJenny ( TRE 0.7.6 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20110809_154140_217954_0C5DED81 X-CRM114-Status: GOOD ( 24.22 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.3.1 on canuck.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at http://www.dnswl.org/, medium trust [207.126.144.149 listed in list.dnswl.org] Cc: Linus Walleij , Lee Jones , Nicolas Pitre X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Greylist: IP, sender and recipient auto-whitelisted, not delayed by milter-greylist-4.2.6 (demeter2.kernel.org [140.211.167.43]); Tue, 09 Aug 2011 19:42:34 +0000 (UTC) From: Linus Walleij The U300 had a special variant where a memory was shared between two CPU:s and only one part of memory was accessible for the kernel. However it is now seriously legacy and only create problems for kernel consolidation, so let's retire it. Cc: Nicolas Pitre Signed-off-by: Linus Walleij --- arch/arm/mach-u300/Kconfig | 38 ------------------------------ arch/arm/mach-u300/Makefile.boot | 17 ++----------- arch/arm/mach-u300/include/mach/memory.h | 22 +--------------- arch/arm/mach-u300/u300.c | 16 ------------ 4 files changed, 5 insertions(+), 88 deletions(-) diff --git a/arch/arm/mach-u300/Kconfig b/arch/arm/mach-u300/Kconfig index 32a7b0f..d3a9ca4 100644 --- a/arch/arm/mach-u300/Kconfig +++ b/arch/arm/mach-u300/Kconfig @@ -48,25 +48,6 @@ config MACH_U300_BS365 endchoice -choice - prompt "Memory configuration" - default MACH_U300_SINGLE_RAM - ---help--- - You have to config the kernel according to the physical memory - configuration. - -config MACH_U300_SINGLE_RAM - bool "Single RAM" - help - Select this if you want support for Single RAM phones. - -config MACH_U300_DUAL_RAM - bool "Dual RAM" - help - Select this if you want support for Dual RAM phones. - This is two RAM memories on different EMIFs. -endchoice - config U300_DEBUG bool "Debug support for U300" depends on PM @@ -93,25 +74,6 @@ config MACH_U300_SPIDUMMY you don't need it. Selecting this will activate the SPI framework and ARM PL022 support. -comment "All the settings below must match the bootloader's settings" - -config MACH_U300_ACCESS_MEM_SIZE - int "Access CPU memory allocation" - range 7 25 - depends on MACH_U300_SINGLE_RAM - default 13 - help - How much memory in MiB that the Access side CPU has allocated - -config MACH_U300_2MB_ALIGNMENT_FIX - bool "2MiB alignment fix" - depends on MACH_U300_SINGLE_RAM - default y - help - If yes and the Access side CPU has allocated an odd size in - MiB, this fix gives you one MiB extra that would otherwise be - lost due to Linux 2 MiB alignment policy. - endmenu endif diff --git a/arch/arm/mach-u300/Makefile.boot b/arch/arm/mach-u300/Makefile.boot index 6fbfc6e..a06bb0d 100644 --- a/arch/arm/mach-u300/Makefile.boot +++ b/arch/arm/mach-u300/Makefile.boot @@ -1,15 +1,4 @@ -# Note: the following conditions must always be true: -# ZRELADDR == virt_to_phys(TEXTADDR) -# PARAMS_PHYS must be within 4MB of ZRELADDR -# INITRD_PHYS must be in RAM - -ifdef CONFIG_MACH_U300_SINGLE_RAM - zreladdr-y := 0x28E08000 - params_phys-y := 0x28E00100 -else - zreladdr-y := 0x48008000 - params_phys-y := 0x48000100 -endif - + zreladdr-y := 0x48008000 +params_phys-y := 0x48000100 # This isn't used. -#initrd_phys-y := 0x29800000 +#initrd_phys-y := 0x48800000 diff --git a/arch/arm/mach-u300/include/mach/memory.h b/arch/arm/mach-u300/include/mach/memory.h index 888e2e3..02bd832 100644 --- a/arch/arm/mach-u300/include/mach/memory.h +++ b/arch/arm/mach-u300/include/mach/memory.h @@ -13,26 +13,8 @@ #ifndef __MACH_MEMORY_H #define __MACH_MEMORY_H -#ifdef CONFIG_MACH_U300_DUAL_RAM - -#define PLAT_PHYS_OFFSET UL(0x48000000) -#define BOOT_PARAMS_OFFSET (PHYS_OFFSET + 0x100) - -#else - -#ifdef CONFIG_MACH_U300_2MB_ALIGNMENT_FIX -#define PLAT_PHYS_OFFSET (0x28000000 + \ - (CONFIG_MACH_U300_ACCESS_MEM_SIZE - \ - (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024) -#else -#define PLAT_PHYS_OFFSET (0x28000000 + \ - (CONFIG_MACH_U300_ACCESS_MEM_SIZE + \ - (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024) -#endif -#define BOOT_PARAMS_OFFSET (0x28000000 + \ - (CONFIG_MACH_U300_ACCESS_MEM_SIZE + \ - (CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1))*1024*1024 + 0x100) -#endif +#define PLAT_PHYS_OFFSET UL(0x48000000) +#define BOOT_PARAMS_OFFSET (PLAT_PHYS_OFFSET + 0x100) /* * We enable a real big DMA buffer if need be. diff --git a/arch/arm/mach-u300/u300.c b/arch/arm/mach-u300/u300.c index 48b3b7f..25d11ba 100644 --- a/arch/arm/mach-u300/u300.c +++ b/arch/arm/mach-u300/u300.c @@ -23,21 +23,6 @@ #include #include -static void __init u300_reserve(void) -{ - /* - * U300 - This platform family can share physical memory - * between two ARM cpus, one running Linux and the other - * running another OS. - */ -#ifdef CONFIG_MACH_U300_SINGLE_RAM -#if ((CONFIG_MACH_U300_ACCESS_MEM_SIZE & 1) == 1) && \ - CONFIG_MACH_U300_2MB_ALIGNMENT_FIX - memblock_reserve(PHYS_OFFSET, 0x00100000); -#endif -#endif -} - static void __init u300_init_machine(void) { u300_init_devices(); @@ -63,7 +48,6 @@ MACHINE_START(U300, MACH_U300_STRING) /* Maintainer: Linus Walleij */ .boot_params = BOOT_PARAMS_OFFSET, .map_io = u300_map_io, - .reserve = u300_reserve, .init_irq = u300_init_irq, .timer = &u300_timer, .init_machine = u300_init_machine,