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Message-ID: <20180905162024.28243-2-nm@ti.com>
Date: Wed, 5 Sep 2018 11:20:22 -0500
From: Nishanth Menon <nm@...com>
To: Tero Kristo <t-kristo@...com>
CC: Mark Rutland <mark.rutland@....com>,
Rob Herring <robh+dt@...nel.org>,
<linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
Tony Lindgren <tony@...mide.com>, Vignesh R <vigneshr@...com>,
Kishon Vijay Abraham I <kishon@...com>,
Nishanth Menon <nm@...com>
Subject: [PATCH 1/3] arm64: dts: ti: am654: Add uart nodes
Add uart nodes for AM654 device tree components.
Signed-off-by: Nishanth Menon <nm@...com>
---
arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 30 ++++++++++++++++++++++++++
arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi | 18 ++++++++++++++++
arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi | 18 ++++++++++++++++
arch/arm64/boot/dts/ti/k3-am65.dtsi | 10 +++++++++
arch/arm64/boot/dts/ti/k3-am654-base-board.dts | 5 +++++
5 files changed, 81 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
create mode 100644 arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi
diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index faace3805c01..674a266066ca 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -28,4 +28,34 @@
#msi-cells = <1>;
};
};
+
+ main_uart0: serial@...0000 {
+ compatible = "ti,am654-uart";
+ reg = <0x00 0x02800000 0x00 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ interrupts = <GIC_SPI 192 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <48000000>;
+ current-speed = <115200>;
+ };
+
+ main_uart1: serial@...0000 {
+ compatible = "ti,am654-uart";
+ reg = <0x00 0x02810000 0x00 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ interrupts = <GIC_SPI 193 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <48000000>;
+ current-speed = <115200>;
+ };
+
+ main_uart2: serial@...0000 {
+ compatible = "ti,am654-uart";
+ reg = <0x00 0x02820000 0x00 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ interrupts = <GIC_SPI 194 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <48000000>;
+ current-speed = <115200>;
+ };
};
diff --git a/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
new file mode 100644
index 000000000000..8c611d16df44
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am65-mcu.dtsi
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for AM6 SoC Family MCU Domain peripherals
+ *
+ * Copyright (C) 2016-2018 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+&cbass_mcu {
+ mcu_uart0: serial@...00000 {
+ compatible = "ti,am654-uart";
+ reg = <0x00 0x40a00000 0x00 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ interrupts = <GIC_SPI 565 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <96000000>;
+ current-speed = <115200>;
+ };
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi
new file mode 100644
index 000000000000..8b4378d4d0a3
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am65-wakeup.dtsi
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for AM6 SoC Family Wakeup Domain peripherals
+ *
+ * Copyright (C) 2016-2018 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+&cbass_wakeup {
+ wkup_uart0: serial@...00000 {
+ compatible = "ti,am654-uart";
+ reg = <0x00 0x42300000 0x00 0x100>;
+ reg-shift = <2>;
+ reg-io-width = <4>;
+ interrupts = <GIC_SPI 697 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <48000000>;
+ current-speed = <115200>;
+ };
+};
diff --git a/arch/arm64/boot/dts/ti/k3-am65.dtsi b/arch/arm64/boot/dts/ti/k3-am65.dtsi
index ded364d20835..3d4bf369d030 100644
--- a/arch/arm64/boot/dts/ti/k3-am65.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65.dtsi
@@ -16,6 +16,14 @@
#address-cells = <2>;
#size-cells = <2>;
+ aliases {
+ serial0 = &wkup_uart0;
+ serial1 = &mcu_uart0;
+ serial2 = &main_uart0;
+ serial3 = &main_uart1;
+ serial4 = &main_uart2;
+ };
+
chosen { };
firmware {
@@ -85,3 +93,5 @@
/* Now include the peripherals for each bus segments */
#include "k3-am65-main.dtsi"
+#include "k3-am65-mcu.dtsi"
+#include "k3-am65-wakeup.dtsi"
diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index af6956fdc13f..e146ac2ad781 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -34,3 +34,8 @@
};
};
};
+
+&wkup_uart0 {
+ /* Wakeup UART is used by System firmware */
+ status = "disabled";
+};
--
2.15.1
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