From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 27 Nov 2023 08:30:01 +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 1r7W48-00AhQ9-1i for lore@lore.pengutronix.de; Mon, 27 Nov 2023 08:30:01 +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 1r7W48-0006dg-Jk for lore@pengutronix.de; Mon, 27 Nov 2023 08:30:01 +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=K6XxhxLL1zsmkFlR+0M5c6kAbRuQp1yB3viFqNpx6zA=; b=ltaly07/hmZh5IOce30lTgXOAl EGQhPF1asiM+/Jw06xv4PR5SNGc62vbF2XwRjhf0fsO1x0eQd0MRu/D7XhJtqUC8MlQ5xFN7UNHIx wbCMnTpM7xap7wc6ti/umDzVI7N7BfK2x5OOjHUVziP+vaQAy0UyP1wHXHfDusQ4iMX1o5nxP+6yI libZNo8ODpI7GZfENZkNPoz1yu/pwT6KO4Wry0ZECKcwYrd63DWzSZJ1PPxXnHqSAZsVkha5SxYri 3TmKH+ui4wiuMvD3s8/KotdJjpvo0HmHQH4pWfyA+zMjDAJn/BqgtDkj42eTakam4E0VAyGBixPrL HFXO1mag==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r7W30-001jhd-2M; Mon, 27 Nov 2023 07:28:50 +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 1r7W2x-001jh0-1A for barebox@lists.infradead.org; Mon, 27 Nov 2023 07:28:48 +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 1r7W2w-0006Wn-1S; Mon, 27 Nov 2023 08:28:46 +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 1r7W2v-00BtEJ-LW; Mon, 27 Nov 2023 08:28:45 +0100 Received: from sha by dude02.red.stw.pengutronix.de with local (Exim 4.96) (envelope-from ) id 1r7W2v-007ZE3-1x; Mon, 27 Nov 2023 08:28:45 +0100 From: Sascha Hauer To: Barebox List Date: Mon, 27 Nov 2023 08:28:44 +0100 Message-Id: <20231127072844.1803529-1-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-20231126_232847_398992_61CC34F5 X-CRM114-Status: UNSURE ( 8.42 ) X-CRM114-Notice: Please train this message. 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=-4.9 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: layerscape: ppa: Enable MMU when in EL2 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) We enter EL2 with MMU disabled even when it was enabled in EL3. Enable MMU in EL2 again. Signed-off-by: Sascha Hauer --- arch/arm/mach-layerscape/ppa.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/mach-layerscape/ppa.c b/arch/arm/mach-layerscape/ppa.c index 43145a7ece..996e881232 100644 --- a/arch/arm/mach-layerscape/ppa.c +++ b/arch/arm/mach-layerscape/ppa.c @@ -123,9 +123,16 @@ int ls1046a_ppa_init(resource_size_t ppa_start, resource_size_t ppa_size) get_builtin_firmware(ppa_ls1046a_bin, &ppa_fw, &ppa_fw_size); if (el == 3) { + unsigned int cr; + + asm volatile("mrs %0, sctlr_el3" : "=r" (cr) : : "cc"); remap_range((void *)ppa_start, ppa_size, MAP_CACHED); + ret = ppa_init(ppa_fw, ppa_fw_size, (void *)ppa_start); + + asm volatile("msr sctlr_el2, %0" : : "r" (cr) : "cc"); remap_range((void *)ppa_start, ppa_size, MAP_UNCACHED); + if (ret) return ret; } -- 2.39.2