From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-x22b.google.com (mail-lf0-x22b.google.com [IPv6:2a00:1450:4010:c07::22b]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id C4E7882037 for ; Tue, 31 Jan 2017 04:34:03 -0800 (PST) Received: by mail-lf0-x22b.google.com with SMTP id x1so123737483lff.0 for ; Tue, 31 Jan 2017 04:34:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=UxUkaYALvdBJ7Rmf9DQB+GMMkVnscrEEVIxBJL4WCZA=; b=gCF6CBidOT18USDt7wqDPZPhyN63+55N7/1jLUtBZIEEniuO2JZbxgJta1g6wjq6bm SH/aesLboIakGjFOP95Zlk9vyF8tUrkn7nAn9N41lpICqA8AMWQxY4hSZoZFJ4oa9Hzs oBIh9GRYtpuRd1RjfwoE7QIV4v8Nn1CVkXD6Y= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=UxUkaYALvdBJ7Rmf9DQB+GMMkVnscrEEVIxBJL4WCZA=; b=f7vH8Tu1HQe2BXzmzZXGCEpecLtMK23DHAJfHipWzBwC8X765tvjzs9QeQicsDe0wz c18jHWTL2b9g/AhqM4vhx5peXQhzVQRe9GFiFUzoImAh4yysn2i4AMjAV+iYL5hjh6SQ pyxXAfzS9XqtUlgFTj+IB5exwiH7iyvjf50MVtdEhSYepjxQi+RC+u6Ep8stFRdT7TUu vuJB1pO8w3OT3plDir1YqTi7TD/jNMhvDT1GO6KDxRqowNg8RTF4+/HGStiMPgJXphTm PJnKetckFIDQ71l9FMAki7Rj5sbwfFmdGDaVBlMycq6xe/4WC1pw2ezdj32Jhc/wMT8m H6dg== X-Gm-Message-State: AIkVDXIPVA5KY89rl4D42CGvOY+XID/HayBO5Yyx/Wihtk6n+2b/DKo2KXZegQwZqnH3vIftC3agW8TxcbCfv4ht X-Received: by 10.25.10.6 with SMTP id 6mr9204444lfk.88.1485866041779; Tue, 31 Jan 2017 04:34:01 -0800 (PST) MIME-Version: 1.0 Received: by 10.25.207.72 with HTTP; Tue, 31 Jan 2017 04:34:01 -0800 (PST) In-Reply-To: <20170131114449.GA25883@bivouac.eciton.net> References: <1484912445-23625-1-git-send-email-bhupesh.linux@gmail.com> <20170126143633.GY25883@bivouac.eciton.net> <20170131114449.GA25883@bivouac.eciton.net> From: Ryan Harkin Date: Tue, 31 Jan 2017 12:34:01 +0000 Message-ID: To: Leif Lindholm Cc: Bhupesh Sharma , "edk2-devel@lists.01.org" , Ard Biesheuvel Subject: Re: [PATCH V3 1/1] ArmPlatformPkg/TZASC: Allow specifying subregions to be disabled X-BeenThere: edk2-devel@lists.01.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: EDK II Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 31 Jan 2017 12:34:04 -0000 Content-Type: text/plain; charset=UTF-8 On 31 January 2017 at 11:44, Leif Lindholm wrote: > On Tue, Jan 31, 2017 at 09:48:11AM +0000, Ryan Harkin wrote: >> On 26 January 2017 at 14:36, Leif Lindholm wrote: >> > On Fri, Jan 20, 2017 at 05:10:45PM +0530, Bhupesh Sharma wrote: >> >> ARM TZASC-380 IP provides a mechanism to split memory regions being >> >> protected via it into eight equal-sized sub-regions. A bit-setting >> >> allows the corresponding subregion to be disabled. >> >> >> >> Several NXP/FSL SoCs support the TZASC-380 IP block and allow >> >> the DDR connected via the TZASC to be partitioned into regions >> >> having different security settings and also allow subregions >> >> to be disabled. >> >> >> >> This patch enables this support and can be used for SoCs which >> >> support such a partition of DDR regions. >> >> >> >> Details of the 'subregion_disable' register can be viewed here: >> >> http://infocenter.arm.com/help/topic/com.arm.doc.ddi0431c/CHDIGDCI.html >> >> >> >> Cc: Leif Lindholm >> >> Cc: Ard Biesheuvel >> >> Contributed-under: TianoCore Contribution Agreement 1.0 >> >> Signed-off-by: Bhupesh Sharma >> >> [bhupesh.linux@gmail.com : Added my gmail ID as the NXP one is no longer valid] >> >> Signed-off-by: Bhupesh Sharma >> > >> > Thanks for the cleanup. >> > I may actually delete that CTA9x4 lib once your platform gets in... >> > >> Probably a good idea. I suspect it's not used or tested any more, >> unless QEMU is using it? > > It's unused. Good. Maybe it's u-boot that uses CTA9 for qemu testing... > And if we do ever resurrect the CTA9 port, it'll be using > ARM Trusted Firmware, Gulp! > so this code will still be irrelevant. > Exterminate! > / > Leif