From patchwork Fri Dec 15 12:28:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Nagy X-Patchwork-Id: 13494399 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2FDB0C46CA2 for ; Fri, 15 Dec 2023 12:29:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=lUnjbCSYLRXHlVhD48YqHLWwcN7DeRJFWJr8H2IkE0g=; b=p1IROPxip6W6uY 2bA1BI7cA+2o9cKpkwaIIUdnr01pPWooKMNeYUZ1/tWE96RPY5TI2gT8e+3kzsveNOaGaAqc6+ayO 5BNPi4AGmzXD7nUMtcDDTkWic7sU15HFlyWP85tQBu/Xn3iWfS8yH5W0ZX0jDRVAJPbpxuXj2uXdX iVA2DgjkoIVEjblB6/Ak2FlYQww7iNwmGir2JZtcTyEA9PJHmfXdB0/HIbnXeiIDeMhmwTd6YfxTa Iaf/SZTk+jZScwimgWQ/xWaKEl6KyfMgOVyS7sOjFRn0OjoI2Ef+4+q++K6QbPqo7zGD9bhu4Piug WYnyJm9frNhI/vihy9IQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1rE7JT-003ED5-2B; Fri, 15 Dec 2023 12:29:07 +0000 Received: from uvw.ixypsilon.net ([81.223.58.118]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1rE7JQ-003EAn-20; Fri, 15 Dec 2023 12:29:06 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=ixypsilon.net; s=20210903; h=Content-Transfer-Encoding:MIME-Version: Message-Id:Date:Subject:Cc:To:From:Sender: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-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=Oj0QHgPdvHMo9GUAP8G/tq7iyDKRF1mzr5DOg7Hc4RM=; t=1702643341; x=1703852941; b=Yc+9JMTwePhlGRrC09C69YES+BVIO7jWilrnqoFBxPp5CIiASfCxh+xaVSpD25Su4umUL8dz4/H Qd9Mdzl5GAy+ym+AadGPS80gPDfwohYzwDmfDHsR8lLleGiXAawtazIci9vUYXBTXlFUsIBzuFXYt 2Wu3ivYSyhdqFCJZ7AHFhCRGI7gMzjpOaie93EgerkcTZajBT7nOrosQNdavf8IN08GEyaCNDTEbP 6plVqteCu+0yr/btsnNkg8/fJbEsmRbFSOwnV9aYOYTYhIF5DL532sXmsE1QT15VVXnaYu1K/j5ak cUcbag0XDCrb1nY7ngWCjvFiWU7LaHbhX8KA==; Received: from [192.168.0.1] (helo=librem14.Hitronhub.home) by uvw.ixypsilon.net with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1rE7JH-0006gN-0U; Fri, 15 Dec 2023 13:28:56 +0100 From: Stefan Nagy To: Heiko Stuebner Cc: linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] arm64: dts: rockchip: Increase maximum frequency of SPI flash for ROCK Pi 4A/B/C Date: Fri, 15 Dec 2023 13:28:48 +0100 Message-Id: <20231215122848.59534-1-stefan.nagy@ixypsilon.net> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-Spam_score: -1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231215_042904_968058_C27A7FBA X-CRM114-Status: GOOD ( 10.92 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The ROCK Pi 4A/B/C boards come with a 32 Mbit SPI NOR flash chip (XTX Technology Limited XT25F32) which has a maximum clock frequency of 108 MHz. However, the Rockchip SPI controller driver limits the maximum SPI clock frequency to 50 MHz. Use this limit for spi-max-freq. This patch has been tested on ROCK Pi 4A. Signed-off-by: Stefan Nagy --- arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a.dts | 2 +- arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts | 2 +- arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a.dts index d5df8939a..30e63e62a 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4a.dts @@ -19,6 +19,6 @@ &spi1 { flash@0 { compatible = "jedec,spi-nor"; reg = <0>; - spi-max-frequency = <10000000>; + spi-max-frequency = <50000000>; }; }; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts index bee6d7588..7122bf6c0 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4b.dts @@ -37,7 +37,7 @@ &spi1 { flash@0 { compatible = "jedec,spi-nor"; reg = <0>; - spi-max-frequency = <10000000>; + spi-max-frequency = <50000000>; }; }; diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts index de2ebe4cb..8af75bc7c 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts +++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4c.dts @@ -49,7 +49,7 @@ &spi1 { flash@0 { compatible = "jedec,spi-nor"; reg = <0>; - spi-max-frequency = <10000000>; + spi-max-frequency = <50000000>; }; };