linux-kernel - [PATCH v8 07/13] arm64: dts: rp1: Add support for RaspberryPi's RP1 device

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <99269f7762ec0124315e0e8977d9ca4f469f89ce.1742418429.git.andrea.porta@suse.com>
Date: Wed, 19 Mar 2025 22:52:28 +0100
From: Andrea della Porta <andrea.porta@...e.com>
To: Andrea della Porta <andrea.porta@...e.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczynski <kw@...ux.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	Derek Kiernan <derek.kiernan@....com>,
	Dragan Cvetic <dragan.cvetic@....com>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Saravana Kannan <saravanak@...gle.com>,
	linux-clk@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-pci@...r.kernel.org,
	linux-gpio@...r.kernel.org,
	Masahiro Yamada <masahiroy@...nel.org>,
	Stefan Wahren <wahrenst@....net>,
	Herve Codina <herve.codina@...tlin.com>,
	Luca Ceresoli <luca.ceresoli@...tlin.com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Andrew Lunn <andrew@...n.ch>,
	Phil Elwell <phil@...pberrypi.com>,
	Dave Stevenson <dave.stevenson@...pberrypi.com>,
	kernel-list@...pberrypi.com
Subject: [PATCH v8 07/13] arm64: dts: rp1: Add support for RaspberryPi's RP1 device

RaspberryPi RP1 is a multi function PCI endpoint device that
exposes several subperipherals via PCI BAR.
Add a dtb overlay that will be compiled into a binary blob
and linked in the RP1 driver.
This overlay offers just minimal support to represent the
RP1 device itself, the sub-peripherals will be added by
future patches.

Signed-off-by: Andrea della Porta <andrea.porta@...e.com>
Reviewed-by: Florian Fainelli <florian.fainelli@...adcom.com>
---
 MAINTAINERS                                  |  1 +
 arch/arm64/boot/dts/broadcom/rp1-common.dtsi | 42 ++++++++++++++++++++
 arch/arm64/boot/dts/broadcom/rp1-nexus.dtsi  | 14 +++++++
 3 files changed, 57 insertions(+)
 create mode 100644 arch/arm64/boot/dts/broadcom/rp1-common.dtsi
 create mode 100644 arch/arm64/boot/dts/broadcom/rp1-nexus.dtsi

diff --git a/MAINTAINERS b/MAINTAINERS
index c2749c588809..6e07b4fb1924 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -19751,6 +19751,7 @@ F:	drivers/media/platform/raspberrypi/rp1-cfe/
 RASPBERRY PI RP1 PCI DRIVER
 M:	Andrea della Porta <andrea.porta@...e.com>
 S:	Maintained
+F:	arch/arm64/boot/dts/broadcom/rp1*.dts*
 F:	drivers/clk/clk-rp1.c
 F:	drivers/pinctrl/pinctrl-rp1.c
 
diff --git a/arch/arm64/boot/dts/broadcom/rp1-common.dtsi b/arch/arm64/boot/dts/broadcom/rp1-common.dtsi
new file mode 100644
index 000000000000..5002a375eb0b
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/rp1-common.dtsi
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/clock/raspberrypi,rp1-clocks.h>
+
+pci_ep_bus: pci-ep-bus@1 {
+	compatible = "simple-bus";
+	ranges = <0x00 0x40000000  0x01 0x00 0x00000000  0x00 0x00400000>;
+	dma-ranges = <0x10 0x00000000  0x43000000 0x10 0x00000000  0x10 0x00000000>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	rp1_clocks: clocks@...18000 {
+		compatible = "raspberrypi,rp1-clocks";
+		reg = <0x00 0x40018000 0x0 0x10038>;
+		#clock-cells = <1>;
+		clocks = <&clk_rp1_xosc>;
+		assigned-clocks = <&rp1_clocks RP1_PLL_SYS_CORE>,
+				  <&rp1_clocks RP1_PLL_SYS>,
+				  <&rp1_clocks RP1_PLL_SYS_SEC>,
+				  <&rp1_clocks RP1_CLK_SYS>;
+		assigned-clock-rates = <1000000000>, // RP1_PLL_SYS_CORE
+				       <200000000>,  // RP1_PLL_SYS
+				       <125000000>,  // RP1_PLL_SYS_SEC
+				       <200000000>;  // RP1_CLK_SYS
+	};
+
+	rp1_gpio: pinctrl@...d0000 {
+		compatible = "raspberrypi,rp1-gpio";
+		reg = <0x00 0x400d0000  0x0 0xc000>,
+		      <0x00 0x400e0000  0x0 0xc000>,
+		      <0x00 0x400f0000  0x0 0xc000>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		interrupts = <0 IRQ_TYPE_LEVEL_HIGH>,
+			     <1 IRQ_TYPE_LEVEL_HIGH>,
+			     <2 IRQ_TYPE_LEVEL_HIGH>;
+	};
+};
diff --git a/arch/arm64/boot/dts/broadcom/rp1-nexus.dtsi b/arch/arm64/boot/dts/broadcom/rp1-nexus.dtsi
new file mode 100644
index 000000000000..0ef30d7f1c35
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/rp1-nexus.dtsi
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+
+rp1_nexus {
+	compatible = "pci1de4,1";
+	#address-cells = <3>;
+	#size-cells = <2>;
+	ranges = <0x01 0x00 0x00000000
+		  0x02000000 0x00 0x00000000
+		  0x0 0x400000>;
+	interrupt-controller;
+	#interrupt-cells = <2>;
+
+	#include "rp1-common.dtsi"
+};
-- 
2.35.3