Thread (21 messages) 21 messages, 4 authors, 2015-09-16
STALE3943d
Revisions (2)
  1. v1 current
  2. v2 [diff vs current]

[PATCH 11/11] ARCv2: Add a DT which enables THP

From: Vineet Gupta <hidden>
Date: 2015-08-27 09:05:22
Also in: linux-arch
Subsystem: synopsys arc architecture, the rest · Maintainers: Vineet Gupta, Linus Torvalds

* Enable THP at bootup
* More than 512M RAM (kernel auto-disabled THP for smaller systems)

Signed-off-by: Vineet Gupta <redacted>
---
 arch/arc/boot/dts/hs_thp.dts | 59 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 arch/arc/boot/dts/hs_thp.dts
diff --git a/arch/arc/boot/dts/hs_thp.dts b/arch/arc/boot/dts/hs_thp.dts
new file mode 100644
index 000000000000..818a8c968330
--- /dev/null
+++ b/arch/arc/boot/dts/hs_thp.dts
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2015 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
+
+/ {
+	compatible = "snps,nsim_hs";
+	interrupt-parent = <&core_intc>;
+
+	chosen {
+		bootargs = "earlycon=arc_uart,mmio32,0xc0fc1000,115200n8 console=ttyARC0,115200n8 transparent_hugepage=always";
+	};
+
+	aliases {
+		serial0 = &arcuart0;
+	};
+
+	memory {
+		device_type = "memory";
+		/* reg = <0x00000000 0x28000000>; */
+		reg = <0x00000000 0x40000000>;
+	};
+
+	fpga {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		/* child and parent address space 1:1 mapped */
+		ranges;
+
+		core_intc: core-interrupt-controller {
+			compatible = "snps,archs-intc";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
+
+		arcuart0: serial@c0fc1000 {
+			compatible = "snps,arc-uart";
+			reg = <0xc0fc1000 0x100>;
+			interrupts = <24>;
+			clock-frequency = <80000000>;
+			current-speed = <115200>;
+			status = "okay";
+		};
+
+		arcpct0: pct {
+			compatible = "snps,archs-pct";
+			#interrupt-cells = <1>;
+			interrupts = <20>;
+		};
+	};
+};
-- 
1.9.1

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