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This node, when enabled will disable the PCI-to-AHB bridge and then allow control of this bridge via ioctls, and access via mmap. Signed-off-by: Patrick Venture --- arch/arm/boot/dts/aspeed-g4.dtsi | 4 ++++ arch/arm/boot/dts/aspeed-g5.dtsi | 5 +++++ 2 files changed, 9 insertions(+) diff --git a/arch/arm/boot/dts/aspeed-g4.dtsi b/arch/arm/boot/dts/aspeed-g4.dtsi index 9549f867aa1ef..0b7bc6072aed0 100644 --- a/arch/arm/boot/dts/aspeed-g4.dtsi +++ b/arch/arm/boot/dts/aspeed-g4.dtsi @@ -165,6 +165,10 @@ compatible = "aspeed,g4-pinctrl"; }; + p2a: p2a-control { + compatible = "aspeed,ast2400-p2a-ctrl"; + status = "disabled"; + }; }; rng: hwrng@1e6e2078 { diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi index 3e4ed081505cc..5f01befcca1e2 100644 --- a/arch/arm/boot/dts/aspeed-g5.dtsi +++ b/arch/arm/boot/dts/aspeed-g5.dtsi @@ -212,6 +212,11 @@ aspeed,external-nodes = <&gfx &lhc>; }; + + p2a: p2a-control { + compatible = "aspeed,ast2500-p2a-ctrl"; + status = "disabled"; + }; }; rng: hwrng@1e6e2078 { From patchwork Thu Apr 25 19:49:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Patrick Leis X-Patchwork-Id: 10917667 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 53417912 for ; 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Thu, 25 Apr 2019 12:49:11 -0700 (PDT) Date: Thu, 25 Apr 2019 12:49:03 -0700 Message-Id: <20190425194903.144569-1-venture@google.com> Mime-Version: 1.0 X-Mailer: git-send-email 2.21.0.593.g511ec345e18-goog Subject: [PATCH 2/2] ARM: dts: aspeed: quanta-q71: Enable p2a node From: Patrick Venture To: venture@google.com, robh+dt@kernel.org, mark.rutland@arm.com, joel@jms.id.au, andrew@aj.id.au X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190425_124913_709574_572D602D X-CRM114-Status: UNSURE ( 8.78 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, arm@kernel.org, linux-aspeed@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Enable the aspeed-p2a-ctrl node and configure with memory-region to enable mmap access. Signed-off-by: Patrick Venture --- arch/arm/boot/dts/aspeed-bmc-quanta-q71l.dts | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/boot/dts/aspeed-bmc-quanta-q71l.dts b/arch/arm/boot/dts/aspeed-bmc-quanta-q71l.dts index 0d7c6339da465..a68ff0675c28a 100644 --- a/arch/arm/boot/dts/aspeed-bmc-quanta-q71l.dts +++ b/arch/arm/boot/dts/aspeed-bmc-quanta-q71l.dts @@ -112,6 +112,11 @@ &pinctrl_ddcclk_default &pinctrl_ddcdat_default>; }; +&p2a { + status = "okay"; + memory-region = <&vga_memory>; +}; + &ibt { status = "okay"; };