From patchwork Mon Feb 10 13:18:19 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Patrice CHOTARD X-Patchwork-Id: 13967862 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 C5CC9C02198 for ; Mon, 10 Feb 2025 13:28:28 +0000 (UTC) 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: Content-Type:MIME-Version:References:In-Reply-To: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:List-Owner; bh=zi9sWfS4AcvcvOsYJDRFzll/+wt+aEfG/kF8n5iSU4w=; b=ccAlhWePCCR9fp3YLLZiLw1EgP 33AOYKpPEK1HiIJ//CwQKbZ7NOTsY6UlO6yH+TlGAH1IeLf8YmZtGn49IkIGaWbOh8khEzie/TN/N XBfXNbIsHfE14xW2kHO8X/w1fQAxkyjny0LtaNPWr1vo6ZLUUuXQDsQpM+LY5pStmdZWs//6fIp2s 1BGJ3nAtvAnzrPCBmTHDEuXJIWkz5g0yFjeOGNBifVXwdDBai4yb0I2jUB5XMZKGjEY1g8IWVMqXv yPrc0Fe03PUVULfW6/GVdC7ww9XIB8U3ayoTff+AohOCeX08HJ+9+56NgQpJjpgjYCZpasPyTk7Y6 81I/5o2w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1thTpl-0000000HY7Z-19oK; Mon, 10 Feb 2025 13:28:21 +0000 Received: from mx07-00178001.pphosted.com ([185.132.182.106]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1thTin-0000000HWID-2pdN for linux-arm-kernel@lists.infradead.org; Mon, 10 Feb 2025 13:21:11 +0000 Received: from pps.filterd (m0241204.ppops.net [127.0.0.1]) by mx07-00178001.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 51ACopkt024316; Mon, 10 Feb 2025 14:20:59 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=foss.st.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=selector1; bh= zi9sWfS4AcvcvOsYJDRFzll/+wt+aEfG/kF8n5iSU4w=; b=HfoEt3h46rPzcq7P dWSkCnqrtNwcSN7Bvg7DjEVY7LEQSOKiB9r0lTJo3pCu36VYNlkEmBEkDbga4F6U 9jtz8lk+KR0ELaKK+3bSM3EproCM9fkk+zpafuA1o60mt7eAhw/UCC9WkI0XLdRl /+8deqMq3aCZcbBMOVxMJWkDuITqV8AjLY4/KHMapwwlPUIrp/VbW2/DYc8zufi6 0zzH1qCDlVEs+Ds5jw9J1zhTTRiwSD2SoJjWZp7UCS2Tq2eN7m6U2HrGLSUFx0IG aWwNhjvU9plTIDRg/KFYQ2ea10Gn5+uaY1mb+Q3n4kY/ZwaEYqzSl2OkmBte68U4 tX+NPA== Received: from beta.dmz-ap.st.com (beta.dmz-ap.st.com [138.198.100.35]) by mx07-00178001.pphosted.com (PPS) with ESMTPS id 44p0rhxpdc-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 10 Feb 2025 14:20:58 +0100 (CET) Received: from euls16034.sgp.st.com (euls16034.sgp.st.com [10.75.44.20]) by beta.dmz-ap.st.com (STMicroelectronics) with ESMTP id A85DB40046; Mon, 10 Feb 2025 14:19:34 +0100 (CET) Received: from Webmail-eu.st.com (shfdag1node1.st.com [10.75.129.69]) by euls16034.sgp.st.com (STMicroelectronics) with ESMTP id E1A1925BCB3; Mon, 10 Feb 2025 14:18:32 +0100 (CET) Received: from localhost (10.48.87.62) by SHFDAG1NODE1.st.com (10.75.129.69) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Mon, 10 Feb 2025 14:18:32 +0100 From: To: Mark Brown , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Alexandre Torgue , Philipp Zabel , Maxime Coquelin , Greg Kroah-Hartman , Arnd Bergmann , Catalin Marinas , Will Deacon CC: , , , , , , Subject: [PATCH v3 1/8] dt-bindings: spi: Add STM32 OSPI controller Date: Mon, 10 Feb 2025 14:18:19 +0100 Message-ID: <20250210131826.220318-2-patrice.chotard@foss.st.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20250210131826.220318-1-patrice.chotard@foss.st.com> References: <20250210131826.220318-1-patrice.chotard@foss.st.com> MIME-Version: 1.0 X-Originating-IP: [10.48.87.62] X-ClientProxiedBy: SAFCAS1NODE1.st.com (10.75.90.11) To SHFDAG1NODE1.st.com (10.75.129.69) X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1057,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-02-10_07,2025-02-10_01,2024-11-22_01 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250210_052110_015149_568AAA81 X-CRM114-Status: GOOD ( 15.93 ) 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 From: Patrice Chotard Add device tree bindings for the STM32 OSPI controller. Main features of the Octo-SPI controller : - support sNOR / sNAND / HyperRAM™ and HyperFlash™ devices. - Three functional modes: indirect, automatic-status polling, memory-mapped. - Up to 4 Gbytes of external memory can be addressed in indirect mode (per physical port and per CS), and up to 256 Mbytes in memory-mapped mode (combined for both physical ports and per CS). - Single-, dual-, quad-, and octal-SPI communication. - Dual-quad communication. - Single data rate (SDR) and double transfer rate (DTR). - Maximum target frequency is 133 MHz for SDR and 133 MHz for DTR. - Data strobe support. - DMA channel for indirect mode. - Double CS mapping that allows two external flash devices to be addressed with a single OCTOSPI controller mapped on a single OCTOSPI port. Signed-off-by: Patrice Chotard Reviewed-by: Krzysztof Kozlowski --- .../bindings/spi/st,stm32mp25-ospi.yaml | 105 ++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 Documentation/devicetree/bindings/spi/st,stm32mp25-ospi.yaml diff --git a/Documentation/devicetree/bindings/spi/st,stm32mp25-ospi.yaml b/Documentation/devicetree/bindings/spi/st,stm32mp25-ospi.yaml new file mode 100644 index 000000000000..5f276f27dc4c --- /dev/null +++ b/Documentation/devicetree/bindings/spi/st,stm32mp25-ospi.yaml @@ -0,0 +1,105 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/spi/st,stm32mp25-ospi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: STMicroelectronics STM32 Octal Serial Peripheral Interface (OSPI) + +maintainers: + - Patrice Chotard + +allOf: + - $ref: spi-controller.yaml# + +properties: + compatible: + const: st,stm32mp25-ospi + + reg: + maxItems: 1 + + memory-region: + description: + Memory region to be used for memory-map read access. + In memory-mapped mode, read access are performed from the memory + device using the direct mapping. + maxItems: 1 + + clocks: + maxItems: 1 + + interrupts: + maxItems: 1 + + resets: + items: + - description: phandle to OSPI block reset + - description: phandle to delay block reset + + dmas: + maxItems: 2 + + dma-names: + items: + - const: tx + - const: rx + + st,syscfg-dlyb: + description: configure OCTOSPI delay block. + $ref: /schemas/types.yaml#/definitions/phandle-array + items: + - description: phandle to syscfg + - description: register offset within syscfg + + access-controllers: + description: phandle to the rifsc device to check access right + and in some cases, an additional phandle to the rcc device for + secure clock control. + items: + - description: phandle to bus controller + - description: phandle to clock controller + minItems: 1 + + power-domains: + maxItems: 1 + +required: + - compatible + - reg + - clocks + - interrupts + - st,syscfg-dlyb + +unevaluatedProperties: false + +examples: + - | + #include + #include + #include + + spi@40430000 { + compatible = "st,stm32mp25-ospi"; + reg = <0x40430000 0x400>; + memory-region = <&mm_ospi1>; + interrupts = ; + dmas = <&hpdma 2 0x62 0x00003121 0x0>, + <&hpdma 2 0x42 0x00003112 0x0>; + dma-names = "tx", "rx"; + clocks = <&scmi_clk CK_SCMI_OSPI1>; + resets = <&scmi_reset RST_SCMI_OSPI1>, <&scmi_reset RST_SCMI_OSPI1DLL>; + access-controllers = <&rifsc 74>; + power-domains = <&CLUSTER_PD>; + st,syscfg-dlyb = <&syscfg 0x1000>; + + #address-cells = <1>; + #size-cells = <0>; + + flash@0 { + compatible = "jedec,spi-nor"; + reg = <0>; + spi-rx-bus-width = <4>; + spi-max-frequency = <108000000>; + }; + };