From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Thu, 05 Mar 2026 08:02:22 +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 1vy2iz-008FTW-2s for lore@lore.pengutronix.de; Thu, 05 Mar 2026 08:02:22 +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 1vy2j0-0004PT-2o for lore@pengutronix.de; Thu, 05 Mar 2026 08:02:22 +0100 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:Cc: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: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=xiF9XmQbwl8boZJTFHc1yc12FqXFMRzJHoF0Xnp2VcM=; b=N4HJlaSfQfvLXP +1msQgkreKhKSUiTy0L25xGVsBaz21kWbGa2xkVpUSYNcVNXN4GqHAtwVNY0+lSTC2bDKdCx/mV3A xHP4ca6yDRu2d0e6oCkK+n4Yc8QcBrSY0/FkS9EqL1wcRHUDy2Xp3+bq6rEKzAaFcs18AcZibJ5Zj qFJUOI+j7hnJCH8cA5tvg0agLKXoHx+lQ+wLaNw4rC5dD4XJP5B+KZNpzCL4Xf1lthaw6YIFbMijU /Y1HM++tx4oGl4gjvb2G8kKrvV8U6v6kwuUS358gJLK5s0mnO0z+GYIMPPgU+5eLxbaYa10xQx3re rJ+fp0qJpRtauEkRrtGA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vy2iW-000000013ap-1xKT; Thu, 05 Mar 2026 07:01:52 +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 1vy2iU-000000013aP-1wM2 for barebox@lists.infradead.org; Thu, 05 Mar 2026 07:01:51 +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 1vy2iS-00049h-Ut; Thu, 05 Mar 2026 08:01:48 +0100 Received: from dude02.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::28]) 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 1vy2iR-003q7I-1M; Thu, 05 Mar 2026 08:01:48 +0100 Received: from [::1] (helo=dude02.red.stw.pengutronix.de) by dude02.red.stw.pengutronix.de with esmtp (Exim 4.98.2) (envelope-from ) id 1vy2iS-0000000ELSU-2miC; Thu, 05 Mar 2026 08:01:48 +0100 From: Sascha Hauer To: Barebox List Date: Thu, 5 Mar 2026 08:01:47 +0100 Message-ID: <20260305070147.3419069-1-s.hauer@pengutronix.de> X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260304_230150_500359_026F6946 X-CRM114-Status: GOOD ( 13.25 ) 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: , Cc: Michael Tretter 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=-3.8 required=4.0 tests=AWL,BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_NONE autolearn=unavailable autolearn_force=no version=3.4.2 Subject: [PATCH] ARM: rockchip: pass smaller device tree to OP-TEE 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) From: Michael Tretter libfdt is slow on larger device tree, especially fdt_subnode_offset. Adding the memory nodes to the ROCK 5T device tree takes about 2 seconds on my machine. OP-TEE doesn't need the entire tree, but only the memory nodes. Create a fresh device tree, which is much smaller, and add the memory nodes there to avoid the costly search through the device tree. Since OP-TEE uses libfdt, too, this saves another 2.5 seconds in OP-TEE. Signed-off-by: Michael Tretter Signed-off-by: Sascha Hauer --- arch/arm/mach-rockchip/atf.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-rockchip/atf.c b/arch/arm/mach-rockchip/atf.c index 37f027740c..a60b55ae24 100644 --- a/arch/arm/mach-rockchip/atf.c +++ b/arch/arm/mach-rockchip/atf.c @@ -230,6 +230,20 @@ static int rk3588_fixup_mem(void *fdt) return fdt_fixup_mem(fdt, base, size, i); } +static int rk3588_open_fdt(const void *fdt, void *buf, int bufsize) +{ + int root; + + if (fdt_create_empty_tree(buf, bufsize) != 0) + return -1; + root = fdt_path_offset(buf, "/"); + + fdt_setprop_u32(buf, root, "#address-cells", 2); + fdt_setprop_u32(buf, root, "#size-cells", 2); + + return 0; +} + void __noreturn rk3588_barebox_entry(void *fdt) { phys_addr_t membase, memend; @@ -250,7 +264,7 @@ void __noreturn rk3588_barebox_entry(void *fdt) if (IS_ENABLED(CONFIG_ARCH_ROCKCHIP_ATF_PASS_FDT)) { pr_debug("Copy fdt to scratch area 0x%p (%zu bytes)\n", rk_scratch->fdt, sizeof(rk_scratch->fdt)); - if (fdt_open_into(fdt, rk_scratch->fdt, sizeof(rk_scratch->fdt)) == 0) + if (rk3588_open_fdt(fdt, rk_scratch->fdt, sizeof(rk_scratch->fdt)) == 0) fdt_scratch = rk_scratch->fdt; else pr_warn("Failed to copy fdt to scratch: Continue without fdt\n"); -- 2.47.3