linux-kernel - [PATCH 4/9] ARM: mstar: Add infinity2m support

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Date:   Mon, 30 Nov 2020 22:10:42 +0900
From:   Daniel Palmer <daniel@...f.com>
To:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org, arnd@...db.de, robh@...nel.org,
        w@....eu, daniel@...f.com
Subject: [PATCH 4/9] ARM: mstar: Add infinity2m support

The infinity2m series of chips are like the other Mstar/Sigmastar
chips in that they have a Cortex A7 system with DDR memory integrated
in a single package.

The infinity2m chips are intended for recording the incoming streams
from IP cameras. So instead of video encoders they have video decoders,
instead of a camera interface they have display hardware and so on.

Aside from the above points the big difference about these chips is that
they include a second Cortex A7 core.

Signed-off-by: Daniel Palmer <daniel@...f.com>
---
 arch/arm/boot/dts/mstar-infinity2m.dtsi | 15 +++++++++++++++
 arch/arm/boot/dts/mstar-v7.dtsi         |  2 +-
 arch/arm/mach-mstar/mstarv7.c           |  1 +
 3 files changed, 17 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/mstar-infinity2m.dtsi

diff --git a/arch/arm/boot/dts/mstar-infinity2m.dtsi b/arch/arm/boot/dts/mstar-infinity2m.dtsi
new file mode 100644
index 000000000000..02adb9fe9d3c
--- /dev/null
+++ b/arch/arm/boot/dts/mstar-infinity2m.dtsi
@@ -0,0 +1,15 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2020 thingy.jp.
+ * Author: Daniel Palmer <daniel@...ngy.jp>
+ */
+
+#include "mstar-infinity.dtsi"
+
+&cpus {
+	cpu1: cpu@1 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a7";
+		reg = <0x1>;
+	};
+};
diff --git a/arch/arm/boot/dts/mstar-v7.dtsi b/arch/arm/boot/dts/mstar-v7.dtsi
index 07fc46c7b4d4..2862b32c7f63 100644
--- a/arch/arm/boot/dts/mstar-v7.dtsi
+++ b/arch/arm/boot/dts/mstar-v7.dtsi
@@ -13,7 +13,7 @@ / {
 	#size-cells = <1>;
 	interrupt-parent = <&gic>;
 
-	cpus {
+	cpus: cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
 
diff --git a/arch/arm/mach-mstar/mstarv7.c b/arch/arm/mach-mstar/mstarv7.c
index 81a4cbcab206..1aa748fa006e 100644
--- a/arch/arm/mach-mstar/mstarv7.c
+++ b/arch/arm/mach-mstar/mstarv7.c
@@ -35,6 +35,7 @@ static void __iomem *l3bridge;
 
 static const char * const mstarv7_board_dt_compat[] __initconst = {
 	"mstar,infinity",
+	"mstar,infinity2m",
 	"mstar,infinity3",
 	"mstar,mercury5",
 	NULL,
-- 
2.29.2