From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Fri, 03 May 2024 12:37:54 +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 1s2qIb-00H8BP-3C for lore@lore.pengutronix.de; Fri, 03 May 2024 12:37:54 +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 1s2qIa-0002Et-V8 for lore@pengutronix.de; Fri, 03 May 2024 12:37:53 +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:Content-Transfer-Encoding: MIME-Version:Message-Id:Date:Subject:Cc: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=p3K1pcXJ22/naD6/MKtfIGP7Lqgfo7TC15jJrNPotmw=; b=z3DmvOan21or6TxpEBWPfAAe1s 723SwHIag7Htn9oxBMtKio569e38D31eroFCmHCe9RTl8Mm+Fv2PIHV/mtcSQ/oN/tf6bQwz/oSSZ fPv5cdMT3IHgarNH8V8hlYBFTS/XhBcxiW7W2JrFkClA3jRlO17r/RLkyrjaKDK6agCEkoiV9gLWk R5fsaFm7nGAAxbw2CobM13S5Jrynw1InV+kgMtiON+Cp67ie37M1Rc/5ticy/oFBT8GktJUCiR8ly IVYz+s7Cg6G+H2pC8kZ4TtlOzqMywsfocyWJavl9CmlBb0Kc4GdLCCCO/h7iXU5MNFqOpaIgQohyU 3HQF76hg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1s2qI8-0000000G4u4-34vy; Fri, 03 May 2024 10:37:24 +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 1s2qI4-0000000G4rz-3jsR for barebox@lists.infradead.org; Fri, 03 May 2024 10:37:22 +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 1s2qI3-0001wL-LZ; Fri, 03 May 2024 12:37:19 +0200 Received: from [2a0a:edc0:0:1101:1d::54] (helo=dude05.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 1s2qI3-00FgXd-99; Fri, 03 May 2024 12:37:19 +0200 Received: from localhost ([::1] helo=dude05.red.stw.pengutronix.de) by dude05.red.stw.pengutronix.de with esmtp (Exim 4.96) (envelope-from ) id 1s2qI3-005kc5-0c; Fri, 03 May 2024 12:37:19 +0200 From: Ahmad Fatoum To: barebox@lists.infradead.org Cc: lst@pengutronix.de Date: Fri, 3 May 2024 12:37:12 +0200 Message-Id: <20240503103717.1370636-1-a.fatoum@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-20240503_033720_948093_168CD88F X-CRM114-Status: GOOD ( 10.56 ) 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=-5.8 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: [PATCH v2 0/5] ARM: i.MX8MP: add nominal drive mode support 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) Unlike the i.MX8MM and i.MX8MN SoCs added earlier, the early setup code and device tree for the i.MX8MP configures some clocks at frequencies that are only validated for overdrive mode, i.e. when VDD_SOC is 950 mV. Boards may want to run their SoC at the lower voltage of 850 mV though to reduce heat generation and power usage. For this to work, clock rates need to adhere to the limits of the nominal drive mode. This needs to be done across both barebox and Linux. This series handles the barebox side and a separate series will follow for the kernel. Ahmad Fatoum (5): ARM: i.MX8M: pass cpu_type parameter to __imx8m_early_clock_init ARM: i.MX8MP: configure PLL3 as 600MHz ARM: i.MX8MP: configure PLL3 as noc_io parent ARM: i.MX8MP: don't reparent GIC from BootROM default ARM: dts: i.MX8MP: Add optional nominal drive mode DTSI arch/arm/dts/imx8mp-nominal.dtsi | 49 +++++++++++++++++++++++++++++++ arch/arm/mach-imx/imx8m.c | 43 ++++++++++++++++++++------- include/mach/imx/imx8m-ccm-regs.h | 1 + 3 files changed, 83 insertions(+), 10 deletions(-) create mode 100644 arch/arm/dts/imx8mp-nominal.dtsi -- 2.39.2