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Fri, 13 Jun 2025 15:54:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1749830099; bh=txoIyDrG2vubdoOdTiTdmcJQb8y7qy5caM50Zd8G8to=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=gFPoa516Ela1DPXpH0f6/CS5GkNUbZK3nAYpFk07eqEgd3MKAhYJpF0s0lR7On5mh mTRs3hEkjNSmkoYXNNxat0V6bY1VSuL9RUaPNvJuo+3M4NxXHk18J9uIsBuF7BfZSP LT2mpCyuW/nNNqy98L7h2qv/SXJaaEYTKmk9KlAx8hO5gtnc+f8HFC2H9FWk4DGBfW 6JdxNAw5ZVa4sVUYSYyFngUyMNeio0PIqep0t3E5XJuUwayNZIlc1Um9AsPD8fsgtD LX9RVvGngHT5S7OMOIWzgnwkmg0oDRjT3tctQgL7cXq2tYr8yGsydjYdO2oCDGOE4x 7e6vKtWFkarMA== Date: Fri, 13 Jun 2025 10:54:58 -0500 From: Bjorn Helgaas To: Jacky Chou Cc: bhelgaas@google.com, lpieralisi@kernel.org, kwilczynski@kernel.org, mani@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, joel@jms.id.au, andrew@codeconstruct.com.au, vkoul@kernel.org, kishon@kernel.org, linus.walleij@linaro.org, p.zabel@pengutronix.de, linux-aspeed@lists.ozlabs.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, openbmc@lists.ozlabs.org, linux-gpio@vger.kernel.org, elbadrym@google.com, romlem@google.com, anhphan@google.com, wak@google.com, yuxiaozhang@google.com, BMC-SW@aspeedtech.com Subject: Re: [PATCH 5/7] ARM: dts: aspeed-g6: Add PCIe RC node Message-ID: <20250613155458.GA962010@bhelgaas> X-Mailing-List: linux-aspeed@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250613033001.3153637-6-jacky_chou@aspeedtech.com> On Fri, Jun 13, 2025 at 11:29:59AM +0800, Jacky Chou wrote: > The AST2600 has one PCIe RC, and add the relative configure regmap. > + pcie0: pcie@1e7700c0 { > + compatible = "aspeed,ast2600-pcie"; > + device_type = "pci"; > + reg = <0x1e7700c0 0x40>; > + linux,pci-domain = <0>; > + #address-cells = <3>; > + #size-cells = <2>; > + interrupts = ; > + bus-range = <0x80 0xff>; > + > + ranges = <0x01000000 0x0 0x00018000 0x00018000 0x0 0x00008000 > + 0x02000000 0x0 0x70000000 0x70000000 0x0 0x10000000>; > + > + status = "disabled"; > + > + resets = <&syscon ASPEED_RESET_H2X>, > + <&syscon ASPEED_RESET_PCIE_RC_O>; > + reset-names = "h2x", "perst"; PERST# is clearly a per-Root Port item since it's a signal on the PCIe connector. Can you separate this and any other per-Root Port things into a Root Port stanza to leave open the possibility of future hardware that supports multiple Root Ports in the RC? > + clocks = <&syscon ASPEED_CLK_GATE_BCLK>; > + pinctrl-names = "default"; > + pinctrl-0 = <&pinctrl_pcierc1_default>; > + > + #interrupt-cells = <1>; > + msi-parent = <&pcie0>; > + msi-controller; > + msi_address = <0x1e77005c>; > + > + aspeed,ahbc = <&ahbc>; > + aspeed,pciecfg = <&pcie_cfg>; > + aspeed,pciephy = <&pcie_phy1>; > + > + interrupt-map-mask = <0 0 0 7>; > + interrupt-map = <0 0 0 1 &pcie_intc0 0>, > + <0 0 0 2 &pcie_intc0 1>, > + <0 0 0 3 &pcie_intc0 2>, > + <0 0 0 4 &pcie_intc0 3>; > + pcie_intc0: interrupt-controller { > + interrupt-controller; > + #address-cells = <0>; > + #interrupt-cells = <1>; > + }; > + }; > + > gfx: display@1e6e6000 { > compatible = "aspeed,ast2600-gfx", "syscon"; > reg = <0x1e6e6000 0x1000>; > -- > 2.43.0 >