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From: Lokesh Vutla <lokeshvutla@ti.com>
To: Nishanth Menon <nm@ti.com>, Tero Kristo <t-kristo@ti.com>,
	Rob Herring <robh+dt@kernel.org>
Cc: Device Tree Mailing List <devicetree@vger.kernel.org>,
	Grygorii Strashko <grygorii.strashko@ti.com>,
	Lokesh Vutla <lokeshvutla@ti.com>, Sekhar Nori <nsekhar@ti.com>,
	Linux ARM Mailing List <linux-arm-kernel@lists.infradead.org>
Subject: [PATCH v2 4/4] arm64: dts: ti: Add support for J7200 Common Processor Board
Date: Thu, 27 Aug 2020 12:21:44 +0530	[thread overview]
Message-ID: <20200827065144.17683-5-lokeshvutla@ti.com> (raw)
In-Reply-To: <20200827065144.17683-1-lokeshvutla@ti.com>

Add support for J7200 Common Processor Board.
The EVM architecture is very similar to J721E as follows:

+------------------------------------------------------+
|   +-------------------------------------------+      |
|   |                                           |      |
|   |        Add-on Card 1 Options              |      |
|   |                                           |      |
|   +-------------------------------------------+      |
|                                                      |
|                                                      |
|                     +-------------------+            |
|                     |                   |            |
|                     |   SOM             |            |
|  +--------------+   |                   |            |
|  |              |   |                   |            |
|  |  Add-on      |   +-------------------+            |
|  |  Card 2      |                                    |    Power Supply
|  |  Options     |                                    |    |
|  |              |                                    |    |
|  +--------------+                                    | <---
+------------------------------------------------------+
                                Common Processor Board

Common Processor board is the baseboard that has most of the actual
connectors, power supply etc. A SOM (System on Module) is plugged on
to the common processor board and this contains the SoC, PMIC, DDR and
basic high speed components necessary for functionality.

Note:
* The minimum configuration required to boot up the board is System On
  Module(SOM) + Common Processor Board.
* Since there is just a single SOM and Common Processor Board, we are
  maintaining common processor board as the base dts and SOM as the dtsi
  that we include. In the future as more SOM's appear, we should move
  common processor board as a dtsi and include configurations as dts.
* All daughter cards beyond the basic boards shall be maintained as
  overlays.
* Since J7200 is derivative of J721E re-using the CONFIG_ARCH_K3_J721E_SOC
  config for building J7200 dts files.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
---
 arch/arm64/boot/dts/ti/Makefile               |  3 +-
 .../dts/ti/k3-j7200-common-proc-board.dts     | 64 +++++++++++++++++++
 arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi   | 29 +++++++++
 3 files changed, 95 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
 create mode 100644 arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 05c0bebf65d4..60ab9b72c130 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -8,4 +8,5 @@
 
 dtb-$(CONFIG_ARCH_K3_AM6_SOC) += k3-am654-base-board.dtb
 
-dtb-$(CONFIG_ARCH_K3_J721E_SOC) += k3-j721e-common-proc-board.dtb
+dtb-$(CONFIG_ARCH_K3_J721E_SOC) += k3-j721e-common-proc-board.dtb \
+				   k3-j7200-common-proc-board.dtb
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
new file mode 100644
index 000000000000..e27069317c4e
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j7200-common-proc-board.dts
@@ -0,0 +1,64 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+
+#include "k3-j7200-som-p0.dtsi"
+
+/ {
+	chosen {
+		stdout-path = "serial2:115200n8";
+		bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";
+	};
+};
+
+&wkup_uart0 {
+	/* Wakeup UART is used by System firmware */
+	status = "disabled";
+};
+
+&main_uart0 {
+	power-domains = <&k3_pds 146 TI_SCI_PD_SHARED>;
+};
+
+&main_uart2 {
+	/* MAIN UART 2 is used by R5F firmware */
+	status = "disabled";
+};
+
+&main_uart3 {
+	/* UART not brought out */
+	status = "disabled";
+};
+
+&main_uart4 {
+	/* UART not brought out */
+	status = "disabled";
+};
+
+&main_uart5 {
+	/* UART not brought out */
+	status = "disabled";
+};
+
+&main_uart6 {
+	/* UART not brought out */
+	status = "disabled";
+};
+
+&main_uart7 {
+	/* UART not brought out */
+	status = "disabled";
+};
+
+&main_uart8 {
+	/* UART not brought out */
+	status = "disabled";
+};
+
+&main_uart9 {
+	/* UART not brought out */
+	status = "disabled";
+};
diff --git a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
new file mode 100644
index 000000000000..22fc50bd5c4c
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2020 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+
+#include "k3-j7200.dtsi"
+
+/ {
+	memory@80000000 {
+		device_type = "memory";
+		/* 4G RAM */
+		reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
+		      <0x00000008 0x80000000 0x00000000 0x80000000>;
+	};
+
+	reserved_memory: reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		secure_ddr: optee@9e800000 {
+			reg = <0x00 0x9e800000 0x00 0x01800000>;
+			alignment = <0x1000>;
+			no-map;
+		};
+	};
+};
-- 
2.28.0


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  parent reply	other threads:[~2020-08-27  6:53 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-27  6:51 [PATCH v2 0/4] arm64: Initial support for Texas Instrument's J7200 Platform Lokesh Vutla
2020-08-27  6:51 ` [PATCH v2 1/4] dt-bindings: arm: ti: Convert K3 board/soc bindings to DT schema Lokesh Vutla
2020-08-28  0:41   ` Nishanth Menon
2020-08-28  3:14     ` Lokesh Vutla
2020-08-28  3:47       ` Suman Anna
2020-08-28 13:07       ` Nishanth Menon
2020-09-04 11:55       ` Nishanth Menon
2020-09-04  7:15   ` Lokesh Vutla
2020-08-27  6:51 ` [PATCH v2 2/4] dt-bindings: arm: ti: Add bindings for J7200 SoC Lokesh Vutla
2020-08-27  6:51 ` [PATCH v2 3/4] arm64: dts: ti: Add support " Lokesh Vutla
2020-08-27 17:04   ` Suman Anna
2020-09-08 11:47     ` Nishanth Menon
2020-08-31  9:13   ` Peter Ujfalusi
2020-09-02  3:51     ` Lokesh Vutla
2020-08-27  6:51 ` Lokesh Vutla [this message]
2020-09-08 11:57   ` [PATCH v2 4/4] arm64: dts: ti: Add support for J7200 Common Processor Board Nishanth Menon
2020-08-27  9:09 ` [PATCH v2 0/4] arm64: Initial support for Texas Instrument's J7200 Platform Grygorii Strashko
2020-09-07 12:02 ` Lokesh Vutla
2020-09-07 14:14   ` Nishanth Menon
2020-09-07 14:23     ` Lokesh Vutla
2020-09-07 23:48       ` Nishanth Menon
2020-09-08  9:55         ` Tero Kristo
2020-09-08 11:25           ` Nishanth Menon

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