From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=62.149.158.101 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793748674; b=OaW8yGAYWBa7nkV7b8YyAEguiVBXDUtc3C6VVeNX37/StFWHfHmoHbjBq50nwKkI5Rwc +fZykgvLL3hE7BpCeGLxaHn0o2Fq8VZNNw4MPXsHczqzg/9k5VCTt6z29KVflET9Ps3ta qXcc4s3nuIs9j3dot/WEP8DTTK/atKAozkULqLzJrXcRHQUJd1oPMmRPxDUjyCGegNTWU gI2MbsmnDOzRasAomr5xAGuRvFoufqj87mtIqDPU/xLEAaacUtrbUAzgUapLkajSTBpbJ mlGXc8TFdxKKM5wTMK4a5JjJ2nHGPHxrYQ2jhvXYPf55o0IL3og+lNUrGIQmVOrGJWA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793748674; h=DMARC-Filter:Received:DKIM-Signature:From:Date:Subject:MIME-Version: Content-Type:Content-Transfer-Encoding:Message-Id:References: In-Reply-To:To:Cc:X-Mailer:X-CMAE-Envelope; bh=yAGcBk+LWAFBvOOewXZ3yZh72Go4Wd+roZLdUKupGgk=; b=s04Wem5i+YYxZOngbU52rm1JSJnwYEb5YGt3sAM59Jk9T+Bkcf+I+CZd1mQWkaYta9K2 SDKgVii6wkble/LAYLlITbTjBT/cHsNp7nfjBolJ4s8wrb3Q0302xgieSlkl4On1EOLnv Z3scjDq4s0aprXRqeAziuyRXa9Cxb15J6BkUzcWO9qkjxFWCE1ipSHZbtFeHZz2VWRmCc uMfcpBmmwiLKoV5sDZgMmLk0KVZOmdp6ZPP9/BJnG+cXJ9FyJbcGtUfw48c2TJ78uT9EH ihjP+WbXLhXOrxTfSceS1FnE4oO1R7hyLBQ5V8peLKUCVRHx/kj6ok3KTMfxNt0TcxQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass header.from=mythread.it; spf=pass smtp.mailfrom=mythread.it; dkim=pass header.d=mythread.it header.i=@mythread.it header.a=rsa-sha256 header.s=a1 header.b="iI0/wf3m"; arc=none smtp.remote-ip=62.149.158.101 Received: from smtpcmd02101.aruba.it (smtpcmd02101.aruba.it [62.149.158.101]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 264BA606A31B for ; Tue, 3 Nov 2026 23:31:06 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 264BA606A31B Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=mythread.it Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mythread.it Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=mythread.it header.i=@mythread.it header.a=rsa-sha256 header.s=a1 header.b=iI0/wf3m Received: from [192.168.1.237] ([94.34.125.0]) by Aruba SMTP with ESMTPSA id ONxyxz48a7fl5ONxzxPx9E; Wed, 04 Nov 2026 00:30:59 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=mythread.it; s=a1; t=1793748659; bh=9BlQvetNuv+4h8j3yTB60v+kh4T8vn8oqQZJG9B3A/M=; h=From:Date:Subject:MIME-Version:Content-Type:To; b=iI0/wf3mkz2cU9UTdVmCB8sMft+uel+5dRNASyg+u1jsd6ey1pd0SXiILwLsb/WQo EQ3zkotWwlcOSwEn8jWnaaXnluE5W/U5Ke6woJldNR8jsRl/Ooe3mf6XqBIOb19z7V 4X9EWunkl1b1HqtwWTt35K2IsU/rlf1INJmINeR3Iwp/VYf1JBzV6C3d3PB9uizCtB F108L4uCHH7opAGYwdjsVDpH8chlWsBmxuauE+tpWpSXtKskuYSQP966rGCzdhy+Vc 0OaQTBl4LUC8m13LSVa8T+gLcy0X+wPReiVqk4IGjnDxv+oe2NXpFbYg3ZYxr13wgk I1uJmdHq6eP4A== From: Alessio Ferri Date: Wed, 04 Nov 2026 00:30:57 +0100 Subject: [PATCH v3 1/5] dt-bindings: bus: add Broadcom BCM6362 WLAN AXI backplane X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261104-bcm6362-wlan-v3-1-e46562b2ac12@mythread.it> References: <20261104-bcm6362-wlan-v3-0-e46562b2ac12@mythread.it> In-Reply-To: <20261104-bcm6362-wlan-v3-0-e46562b2ac12@mythread.it> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , =?utf-8?q?Rafa=C5=82_Mi=C5=82ecki?= , Philipp Zabel , Florian Fainelli , Broadcom internal kernel review list , Thomas Bogendoerfer , Jonas Gorski Cc: linux-wireless@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, Alessio Ferri X-Mailer: b4 0.14.3 X-CMAE-Envelope: MS4xfCGfJlQk5zHd5tl9/+3/t67H4T9ssLhpKRSdEehXV6IsMyUJNHfeWsrfsRrgaWaCIaRrPYMb0/3MTJjBvq3OjUoxhSct3m9JtfRO6926Rp24KaQdId/M bWjr8Nen32TawHDiBbg8e6LcWMVnppCynapVC58RxzsY1eIIyQmcjnxQ4w75AAOMvVvB65qMw1VMsw8uFUNA6aiixDcmljJ0imJJp3tUh1Up0VHmhLTGNtTl AqhiqJmjmd5yJEmLr2upiyejlHqrSq7tnqTfjgPHxNHwLzJ3ef3n3yoTDDA1SXpU27D250ztwRCFusVvakoX0Gg39Gm/XVVvKF7/EwEYEt+qs6CVa6dL++BW ++5vRgpx5CTxUK8QYx3Eex5r/RdCkd2McjdFHWsutX1pXmQ4ArMJsXnntA9iF3YtcadtUTOQCeXDhvgElXifMYMpG/kghcZ0T15uy9qctbSRPgcTcC2rgSnT kM6QpSpcJtnpbWmdYHjYgP75YpanYkw6Dvrflog8Zs27Kz7Gndxy1FJVs/bmVWca1HRoQjFlI3rigDUc001ddm+N8cUEBdjLsqxpJAx6tMwpRQkS3L4LvrOO NnyL2XfWfOhgH/r1vvyVZ+7vPV/rA+ikJLiXsd5ZQTB/YYauvSTk8ynqAgGKaZsyTKjdy+mTwzFcV9s+T/ohEnqCfprfXEzlJtAvrZCTa4DWYw== The BCM6362 integrates a WLAN macro on its own AXI backplane. Unlike the backplanes covered by brcm,bus-axi, its cores have no wrappers: clock gating and reset are driven through a separate WLAN control register block, and the macro needs a clock, two resets and the WLAN pads power domain before the backplane can be accessed. The backplane registers are big-endian. Add a binding describing the ChipCommon and WLAN control register blocks, the clock, resets and power domain, and the interrupt-map used to route core interrupts, following the brcm,bus-axi convention. Signed-off-by: Alessio Ferri --- .../bindings/bus/brcm,bcm6362-wlan-bus-axi.yaml | 109 +++++++++++++++++++++ 1 file changed, 109 insertions(+) diff --git a/Documentation/devicetree/bindings/bus/brcm,bcm6362-wlan-bus-axi.yaml b/Documentation/devicetree/bindings/bus/brcm,bcm6362-wlan-bus-axi.yaml new file mode 100644 index 000000000000..c27efd719989 --- /dev/null +++ b/Documentation/devicetree/bindings/bus/brcm,bcm6362-wlan-bus-axi.yaml @@ -0,0 +1,109 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/bus/brcm,bcm6362-wlan-bus-axi.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom BCM6362 integrated WLAN AXI backplane + +maintainers: + - Alessio Ferri + +description: | + The BCM6362 integrates a WLAN macro on a dedicated AXI backplane + (bcma), whose cores are discovered at runtime from the backplane + EROM. + + The cores have no DMP wrappers: clock gating and reset of the + ChipCommon and 802.11 cores are controlled through a separate WLAN + control register block. The backplane registers are big-endian. + + Interrupts of the cores are described with an interrupt-map, as for + brcm,bus-axi: bcma looks up each core interrupt with the core base + address and the core interrupt index as key. The node has no child + nodes; #address-cells only sets the size of the address part of the + key. + +properties: + compatible: + const: brcm,bcm6362-wlan-bus-axi + + reg: + items: + - description: ChipCommon core registers + - description: WLAN control registers + + reg-names: + items: + - const: chipcommon + - const: wlan-ctrl + + clocks: + maxItems: 1 + + resets: + items: + - description: WLAN macro reset + - description: WLAN UBUS interface reset + + reset-names: + items: + - const: wlan + - const: wlan-ubus + + power-domains: + maxItems: 1 + + "#address-cells": + const: 1 + + "#interrupt-cells": + const: 1 + + interrupt-map-mask: + items: + - const: 0x000fffff + - const: 0xffff + + interrupt-map: + description: + Interrupt of the 802.11 core, keyed by the low 20 bits of the core + base address and by the core interrupt index. + maxItems: 1 + +required: + - compatible + - reg + - reg-names + - clocks + - resets + - reset-names + - power-domains + - "#address-cells" + - "#interrupt-cells" + - interrupt-map-mask + - interrupt-map + +additionalProperties: false + +examples: + - | + #include + #include + #include + + bus@10004000 { + compatible = "brcm,bcm6362-wlan-bus-axi"; + reg = <0x10004000 0x1000>, <0x10007000 0x100>; + reg-names = "chipcommon", "wlan-ctrl"; + + #address-cells = <1>; + clocks = <&periph_clk BCM6362_CLK_WLAN_OCP>; + #interrupt-cells = <1>; + interrupt-map = <0x00005000 0 &periph_intc 7>; + interrupt-map-mask = <0x000fffff 0xffff>; + power-domains = <&periph_pwr BCM6362_POWER_DOMAIN_WLAN_PADS>; + resets = <&periph_rst BCM6362_RST_WLAN_SHIM>, + <&periph_rst BCM6362_RST_WLAN_UBUS>; + reset-names = "wlan", "wlan-ubus"; + }; -- 2.56.0