arm64: dts: ti: Add support for AM654 EVM base board

The EValuation Module(EVM) platform for AM654 consists of a
common Base board + one or more of daughter cards, which include:
a) "Personality Modules", which can be specific to a profile, such as
 ICSSG enabled or Multi-media (including audio).
b) SERDES modules, which may be 2 lane PCIe or two port PCIe + USB2
c) Camera daughter card
d) various display panels

Among other options. There are two basic configurations defined which
include an "EVM" configuration and "IDK" (Industrial development kit)
which differ in the specific combination of daughter cards that are
used.

To simplify support, we choose to support just the base board as the
core device tree file and all daughter cards would be expected to be
device tree overlays.

Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/MAINTAINERS b/MAINTAINERS
index 6785cea..e9e916d 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2093,6 +2093,7 @@ M:        Nishanth Menon <nm@ti.com>
 L:     linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:     Supported
 F:     Documentation/devicetree/bindings/arm/ti/k3.txt
+F:     arch/arm64/boot/dts/ti/Makefile
 F:     arch/arm64/boot/dts/ti/k3-*
 
 ARM/TEXAS INSTRUMENT KEYSTONE ARCHITECTURE

diff --git a/arch/arm64/boot/dts/Makefile b/arch/arm64/boot/dts/Makefile
index 3543bc3..4690364 100644 (file)
--- a/arch/arm64/boot/dts/Makefile
+++ b/arch/arm64/boot/dts/Makefile
@@ -23,5 +23,6 @@ subdir-y += rockchip
 subdir-y += socionext
 subdir-y += sprd
 subdir-y += synaptics
+subdir-y += ti
 subdir-y += xilinx
 subdir-y += zte

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
new file mode 100644 (file)
index 0000000..63e619d
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -0,0 +1,9 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Make file to build device tree binaries for boards based on
+# Texas Instruments Inc processors
+#
+# Copyright (C) 2016-2018 Texas Instruments Incorporated - http://www.ti.com/
+#
+
+dtb-$(CONFIG_ARCH_K3_AM6_SOC) += k3-am654-base-board.dtb

diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
new file mode 100644 (file)
index 0000000..af6956f
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2016-2018 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+/dts-v1/;
+
+#include "k3-am654.dtsi"
+
+/ {
+       compatible =  "ti,am654-evm", "ti,am654";
+       model = "Texas Instruments AM654 Base Board";
+
+       chosen {
+               stdout-path = "serial2:115200n8";
+               bootargs = "earlycon=ns16550a,mmio32,0x02800000";
+       };
+
+       memory@80000000 {
+               device_type = "memory";
+               /* 4G RAM */
+               reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
+                     <0x00000008 0x80000000 0x00000000 0x80000000>;
+       };
+
+       reserved-memory {
+               #address-cells = <2>;
+               #size-cells = <2>;
+               ranges;
+               secure_ddr: secure_ddr@9e800000 {
+                       reg = <0 0x9e800000 0 0x01800000>; /* for OP-TEE */
+                       alignment = <0x1000>;
+                       no-map;
+               };
+       };
+};