From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Tue, 24 Jun 2025 13:28:26 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uU1pC-00AaLe-1y for lore@lore.pengutronix.de; Tue, 24 Jun 2025 13:28:26 +0200 Received: from bombadil.infradead.org ([2607:7c80:54:3::133]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1uU1pC-0003uu-2b for lore@pengutronix.de; Tue, 24 Jun 2025 13:28:26 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=NaDo+K3O3iiFf4Ww4LuEwpjGp2oTKacfDnRj5ouEzvM=; b=E7RAdDxCFlh2jKXB6iTP329FSW 3cvqmbqX2l7mTMwcu0dOkokSFIykm2Li4vpFmajVEQfIN3dPnDRMB6UAIbXJGa/2Q0XwovlD28ckY UjlOi2THbw+emp1NVhr4xPutgQQ1RsqiSn4Xo9AvLn+CO9cqMQyZL/FPwzfoJeAmfFIr9S01V+v01 grkORcYXTXrIyqEpjVs/2EJgvU3UWMzn13e5VHUeJXyUFGKJSkM2/ruUW4W5iKTj8RV6kPu/MK+Yt zd2MT0cx1Oe3FzaV+Z8ZFXAVBljdQDdhS3s/U+aU0wQddHFdHsggQGQtnZ0uiasZyGEFuh/IcCUNb ZFY9Eyqg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1uU1ol-00000005Qlp-0RTG; Tue, 24 Jun 2025 11:27:59 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1uU1JQ-00000005MtM-2Hx3 for barebox@lists.infradead.org; Tue, 24 Jun 2025 10:55:37 +0000 Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.whiteo.stw.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1uU1JP-0006BK-3b; Tue, 24 Jun 2025 12:55:35 +0200 Received: from pty.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::c5]) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uU1JO-0056A9-2z; Tue, 24 Jun 2025 12:55:34 +0200 Received: from mfe by pty.whiteo.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1uU1JO-00F94C-2g; Tue, 24 Jun 2025 12:55:34 +0200 Date: Tue, 24 Jun 2025 12:55:34 +0200 From: Marco Felsch To: Ahmad Fatoum Cc: barebox@lists.infradead.org Message-ID: <20250624105534.kmewkn5etl2rhh5a@pengutronix.de> References: <20250619152556.3749995-1-m.felsch@pengutronix.de> <20250619152556.3749995-4-m.felsch@pengutronix.de> <7987c09e-d236-455e-b17d-efaa5e1ea791@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7987c09e-d236-455e-b17d-efaa5e1ea791@pengutronix.de> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250624_035536_583264_31424CC3 X-CRM114-Status: GOOD ( 17.17 ) 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: , Sender: "barebox" X-SA-Exim-Connect-IP: 2607:7c80:54:3::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.whiteo.stw.pengutronix.de X-Spam-Level: X-Spam-Status: No, score=-5.3 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: Re: [PATCH 4/5] ARM: mach-imx: tzasc: add imx6q_tzc380_early_ns_region1() X-SA-Exim-Version: 4.2.1 (built Wed, 08 May 2019 21:11:16 +0000) X-SA-Exim-Scanned: Yes (on metis.whiteo.stw.pengutronix.de) Hi Ahmad, On 25-06-24, Ahmad Fatoum wrote: > Hello Marco, > > On 6/19/25 17:25, Marco Felsch wrote: > > +void imx6q_tzc380_early_ns_region1(void) > > +{ > > + resource_size_t ram_sz = imx6_get_mmdc_sdram_size(); > > + > > + imx_tzc380_init_and_setup(IOMEM(MX6_TZASC1_BASE), 1, > > + MX6_MMDC_PORT01_BASE_ADDR, ram_sz, > > + TZC380_REGION_SP_NS_RW); > > + imx_tzc380_init_and_setup(IOMEM(MX6_TZASC2_BASE), 1, > > + MX6_MMDC_PORT01_BASE_ADDR, ram_sz, > > + TZC380_REGION_SP_NS_RW); > > What's the point of having two TZASC's if you configure them the exact > same way..? The i.MX6QDL do have two MMDCs. Depending on the system/board-design the controllers support interleaved access. I'm not that deep into that topic but I think this was mostly used by LPDDR2 setups. For DDR3 setups only one MMDC can be used. Regards, Marco > > +} > > + > > void imx8m_tzc380_init(void) > > { > > u32 __iomem *gpr = IOMEM(MX8M_IOMUXC_GPR_BASE_ADDR); > > diff --git a/include/mach/imx/tzasc.h b/include/mach/imx/tzasc.h > > index 51c86f168ee4..4d3f26fc82f1 100644 > > --- a/include/mach/imx/tzasc.h > > +++ b/include/mach/imx/tzasc.h > > @@ -6,6 +6,7 @@ > > #include > > #include > > > > +void imx6q_tzc380_early_ns_region1(void); > > void imx8m_tzc380_init(void); > > bool imx8m_tzc380_is_enabled(void); > > > > -- > Pengutronix e.K. | | > Steuerwalder Str. 21 | http://www.pengutronix.de/ | > 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | > Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | > >