From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Wed, 17 Jan 2024 16:01:43 +0100 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 1rQ7QE-003t7a-18 for lore@lore.pengutronix.de; Wed, 17 Jan 2024 16:01:43 +0100 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 1rQ7QE-0006x8-W5 for lore@pengutronix.de; Wed, 17 Jan 2024 16:01:43 +0100 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:From:In-Reply-To: Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To: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=TflvW4JokmnQLTwRyhkbt5bc7hIpYIqocsethGY34dY=; b=LGKShaSsZm8S6/UzQHgjmWqbEi JHlzihWQWA3Xs4qoRepjRW2+Gw4zwQ14MS86QeghdsRICHG7hB2TqP/fWIEYkhLYGPWxSzgQeVksx NhsKOak9c236SaTGF18SijWUeMNFWlxecTbHw+hXkhczI+dKnyXQGsG7jnern5Dru9JMeOqjmxeyZ OTXzT9KphIsbvlERRFwM1Rky/T8MExhf4Vshq8twfl17E0KuljUUrgrRkjSTpZb8rLnerjpYPl8jA Z/0aiiTQjQVlAdEX+SoQLm8ajIVFzRCPRHyWP72BLHCqh1xy4HjrJVENbL7yC99Cug9/aTD9rEAuF AQyHuNlw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rQ7Ou-00HM6B-0U; Wed, 17 Jan 2024 15:00:20 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rQ7Or-00HM5O-17 for barebox@lists.infradead.org; Wed, 17 Jan 2024 15:00:18 +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 1rQ7Oo-0006ak-VZ; Wed, 17 Jan 2024 16:00:14 +0100 Received: from [2a0a:edc0:2:b01:1d::c0] (helo=ptx.whiteo.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rQ7Oo-000URy-J5; Wed, 17 Jan 2024 16:00:14 +0100 Received: from sha by ptx.whiteo.stw.pengutronix.de with local (Exim 4.92) (envelope-from ) id 1rQ7Oo-000PxP-Gl; Wed, 17 Jan 2024 16:00:14 +0100 Date: Wed, 17 Jan 2024 16:00:14 +0100 To: Marco Felsch Cc: barebox@lists.infradead.org Message-ID: <20240117150014.GK4700@pengutronix.de> References: <20240116170738.209954-1-m.felsch@pengutronix.de> <20240116170738.209954-6-m.felsch@pengutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20240116170738.209954-6-m.felsch@pengutronix.de> X-Sent-From: Pengutronix Hildesheim X-URL: http://www.pengutronix.de/ X-Accept-Language: de,en X-Accept-Content-Type: text/plain User-Agent: Mutt/1.10.1 (2018-07-13) From: Sascha Hauer X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240117_070017_388834_E66956FF X-CRM114-Status: GOOD ( 24.81 ) 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=-6.1 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, T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: Re: [PATCH v2 05/18] ARM: i.MX8M: scratch: add optee_hdr area 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) On Tue, Jan 16, 2024 at 06:07:25PM +0100, Marco Felsch wrote: > Add a new scratch storage slot for possible optee-hdr information which > have to passed between barebox-pbl and barebox-proper. Reserve 512 bytes > between the bootrom-log and the optee-hdr in case the bootrom-log need > more space in the future. > > Signed-off-by: Marco Felsch > --- > arch/arm/mach-imx/scratch.c | 29 +++++++++++++++++++++++++++++ > include/mach/imx/scratch.h | 5 +++++ > 2 files changed, 34 insertions(+) > > diff --git a/arch/arm/mach-imx/scratch.c b/arch/arm/mach-imx/scratch.c > index f4faff835c8c..6ba9b9d55b7d 100644 > --- a/arch/arm/mach-imx/scratch.c > +++ b/arch/arm/mach-imx/scratch.c > @@ -8,10 +8,13 @@ > #include > #include > #include > +#include > #include > > struct imx_scratch_space { > u32 bootrom_log[128]; > + u32 reserved[128]; /* reserve for bootrom log */ > + struct optee_header optee_hdr; > }; > > static struct imx_scratch_space *scratch; > @@ -53,6 +56,32 @@ const u32 *imx8m_scratch_get_bootrom_log(void) > return scratch->bootrom_log; > } > > +void imx8m_scratch_save_optee_hdr(const struct optee_header *hdr) > +{ > + size_t sz = sizeof(*hdr); > + > + if (!scratch) { > + pr_err("No scratch area initialized, skip saving optee-hdr"); > + return; > + } > + > + pr_debug("Saving optee-hdr to scratch area 0x%p\n", &scratch->optee_hdr); > + > + memcpy(&scratch->optee_hdr, hdr, sz); > +} > + > +const struct optee_header *imx8m_scratch_get_optee_hdr(void) > +{ > + if (!scratch) { > + if (IN_PBL) > + return ERR_PTR(-EINVAL); > + else > + scratch = (void *)arm_mem_scratch_get(); > + } > + > + return &scratch->optee_hdr; > +} These two function do not seem to be i.MX8 specific, I could reuse them on i.MX9, so better with imx_ prefix? Sascha -- 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 |