From patchwork Mon Apr 22 13:35:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heiko Stuebner X-Patchwork-Id: 13638528 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 0BEC5C4345F for ; Mon, 22 Apr 2024 13:35:20 +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=5edeRBWRxjnkmLJ1tQ0CwT7pXwtzo+Iqt0sqrqcuKg4=; b=XMrXlvOCe2syVT yX7ibQVF0PmmCygCRLppgBvrzT9yBV147uvnU0BZNEZ0V+2ExeIZ0yilwTOtX+v+gq0hZg52TtyXX YMSGL8mlD9eOKyOFqj+F020exD+d++Ix1Bnyau/17zjKgzASVohdLIkT1GHN2FfIdXNotGeQlTVUX We/iPw81m5Yz79nW7Wlb4ygkj2Yf+EIEqjMVxtlQUIo5Mv3N7jJtU3f9QjkG/7aIziIB6oZW2Zja5 luqeBWWl1bcUOZPcHd7NBCU24rBTmDhIGxPq9fp0ZMxRKigwOUjJIBdACqfU/nSJLb4ZUKHvH4vrs v8FIhqfdgb9kK+Gz4OxA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rytpB-0000000DlNF-3Xkn; Mon, 22 Apr 2024 13:35:13 +0000 Received: from gloria.sntech.de ([185.11.138.130]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rytp7-0000000DlKW-3vpF; Mon, 22 Apr 2024 13:35:11 +0000 Received: from i5e861d85.versanet.de ([94.134.29.133] helo=phil.lan) by gloria.sntech.de with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1rytp3-0003PX-SH; Mon, 22 Apr 2024 15:35:05 +0200 From: Heiko Stuebner To: heiko@sntech.de Cc: quentin.schulz@theobroma-systems.com, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, Heiko Stuebner Subject: [PATCH v3] arm64: dts: rockchip: add PCIe3 support on rk3588-jaguar Date: Mon, 22 Apr 2024 15:35:02 +0200 Message-Id: <20240422133502.2592975-1-heiko@sntech.de> X-Mailer: git-send-email 2.39.2 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240422_063510_003626_FA2BECB7 X-CRM114-Status: GOOD ( 14.07 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org From: Heiko Stuebner The Jaguar SBC provides an M.2 slot connected to the pcie3 controller. In contrast to a number of other boards the pcie-refclk is gpio-controlled, so the necessary clock and is added to the list of pcie3 clocks. Signed-off-by: Heiko Stuebner Reviewed-by: Quentin Schulz --- changes in v3: - drop unnecessary pinctrl comment (Quentin) - add Quentin's review changes in v2: - "an" M.2 slot (Dragan) - pinctrl for refclk-en and reset pin (Quentin) - don't repurpose the pcie30x4_pins pinctrl entry for only wake (Quentin) .../arm64/boot/dts/rockchip/rk3588-jaguar.dts | 59 +++++++++++++++++++ 1 file changed, 59 insertions(+) diff --git a/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts b/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts index 4076c92668ba..0ad53d7768a3 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts +++ b/arch/arm64/boot/dts/rockchip/rk3588-jaguar.dts @@ -72,6 +72,27 @@ led-1 { }; }; + /* + * 100MHz reference clock for PCIe peripherals from PI6C557-05BLE + * clock generator. + * The clock output is gated via the OE pin on the clock generator. + * This is modeled as a fixed-clock plus a gpio-gate-clock. + */ + pcie_refclk_gen: pcie-refclk-gen-clock { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <1000000000>; + }; + + pcie_refclk: pcie-refclk-clock { + compatible = "gpio-gate-clock"; + clocks = <&pcie_refclk_gen>; + #clock-cells = <0>; + enable-gpios = <&gpio0 RK_PC6 GPIO_ACTIVE_LOW>; /* PCIE30X4_CLKREQN_M0 */ + pinctrl-names = "default"; + pinctrl-0 = <&pcie30x4_clkreqn_m0>; + }; + pps { compatible = "pps-gpio"; gpios = <&gpio0 RK_PD5 GPIO_ACTIVE_HIGH>; @@ -358,6 +379,30 @@ &pcie2x1l0 { status = "okay"; }; +&pcie30phy { + status = "okay"; +}; + +&pcie3x4 { + /* + * The board has a gpio-controlled "pcie_refclk" generator, + * so add it to the list of clocks. + */ + clocks = <&cru ACLK_PCIE_4L_MSTR>, <&cru ACLK_PCIE_4L_SLV>, + <&cru ACLK_PCIE_4L_DBI>, <&cru PCLK_PCIE_4L>, + <&cru CLK_PCIE_AUX0>, <&cru CLK_PCIE4L_PIPE>, + <&pcie_refclk>; + clock-names = "aclk_mst", "aclk_slv", + "aclk_dbi", "pclk", + "aux", "pipe", + "ref"; + pinctrl-names = "default"; + pinctrl-0 = <&pcie30x4_waken_m0 &pcie30x4_perstn_m0>; + reset-gpios = <&gpio0 RK_PD0 GPIO_ACTIVE_HIGH>; /* PCIE30X4_PERSTN_M0 */ + vpcie3v3-supply = <&vcc3v3_mdot2>; + status = "okay"; +}; + &pinctrl { emmc { emmc_reset: emmc-reset { @@ -376,6 +421,20 @@ led1_pin: led1-pin { rockchip,pins = <1 RK_PD4 RK_FUNC_GPIO &pcfg_pull_none>; }; }; + + pcie30x4 { + pcie30x4_clkreqn_m0: pcie30x4-clkreqn-m0 { + rockchip,pins = <0 RK_PC6 RK_FUNC_GPIO &pcfg_pull_none>; + }; + + pcie30x4_perstn_m0: pcie30x4-perstn-m0 { + rockchip,pins = <0 RK_PD0 RK_FUNC_GPIO &pcfg_pull_none>; + }; + + pcie30x4_waken_m0: pcie30x4-waken-m0 { + rockchip,pins = <0 RK_PC7 12 &pcfg_pull_none>; + }; + }; }; &saradc {