From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 11 Mar 2024 09:07:19 +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 1rjago-000lMx-3C for lore@lore.pengutronix.de; Mon, 11 Mar 2024 09:07:19 +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 1rjago-0003iE-EM for lore@pengutronix.de; Mon, 11 Mar 2024 09:07:18 +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:Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:To:From:Reply-To:Cc:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=P7MUbzp7kkLFZrF3dR6sGwvZoUfWF/rGsnteYUfx2B0=; b=R5Te5y+9RfkuWof3SSzQ13o1q0 qlj/ysfXKc0BGgown9AWAOLafgyCdWaslufeQfTXhK1EHK4EUXvx1t3+l6KhQbyRcjkhn9T2EyIPq K0TvqGXqEugshtTpAVt3jkd/c2us7R/ORYLZ5K/dtO+l3Cq/IL6or+HujxRaVuvlTNMdQ8zJUBXAG 59OBGHB3Ic4iXmWtoaWfJQXo0bXr2LhrL0EP9EVVVcM4WWouWUHdjJ46f77AkEbdmWmIgrgM3BVdO KDFEkb9zkqOwMc/VJyjJ3Yas1yUUJ73xAmTV/iWDyhsNptgyNOBelNdSn5F8uACcUowbBv4vvIbjO vvEdOxMQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rjag5-00000000Z9t-1wBd; Mon, 11 Mar 2024 08:06:33 +0000 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rjag1-00000000Z8l-2xFu for barebox@lists.infradead.org; Mon, 11 Mar 2024 08:06:31 +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 1rjafx-0003CS-Lm; Mon, 11 Mar 2024 09:06:25 +0100 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.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 1rjafx-005fU1-9L; Mon, 11 Mar 2024 09:06:25 +0100 Received: from localhost ([::1] helo=dude02.red.stw.pengutronix.de) by dude02.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1rjafx-007hvI-0Y; Mon, 11 Mar 2024 09:06:25 +0100 From: Sascha Hauer To: Barebox List Date: Mon, 11 Mar 2024 09:06:24 +0100 Message-Id: <20240311080624.1836184-1-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240311_010629_764766_CB92A614 X-CRM114-Status: GOOD ( 10.97 ) 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=-5.6 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: [PATCH] ARM: i.MX93: ele: start TRNG on i.MX93 rev a1 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 i.MX93 a0 the TRNG seems to be started automatically. On rev a1 it's not and OP-TEE panics with "Cannot retrieve random data from ELE". Start the TRNG to let OP-TEE startup successfully. Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/ele.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/arch/arm/mach-imx/ele.c b/arch/arm/mach-imx/ele.c index ab3958cbd3..f8093fc694 100644 --- a/arch/arm/mach-imx/ele.c +++ b/arch/arm/mach-imx/ele.c @@ -165,6 +165,23 @@ int ele_get_info(struct ele_get_info_data *info) return ret; } +static int ele_get_start_trng(void) +{ + struct ele_msg msg = { + .version = ELE_VERSION, + .tag = ELE_CMD_TAG, + .size = 1, + .command = ELE_START_RNG, + }; + int ret; + + ret = ele_call(&msg); + if (ret) + pr_err("Could not start TRNG, response 0x%x\n", msg.data[0]); + + return ret; +} + int imx93_ele_load_fw(void *bl33) { struct ele_get_info_data info = {}; @@ -204,6 +221,9 @@ int imx93_ele_load_fw(void *bl33) pr_err("Could not start ELE firmware: ret %d, response 0x%x\n", ret, msg.data[0]); + if (rev == 0xa1) + ele_get_start_trng(); + return 0; } -- 2.39.2