Re: [PATCH 2/2] ARM: mvebu: dts: Add dts file for DLink DNS-327L

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Andrew Lunn писал 12.04.2015 00:40:
On Sat, Apr 11, 2015 at 11:29:20PM +0300, Andrew Andrianov wrote:
Signed-off-by: Andrew Andrianov <andrew@xxxxxxxxxx>
---
 arch/arm/boot/dts/Makefile                     |    1 +
arch/arm/boot/dts/armada-370-dlink-dns327l.dts | 309 ++++++++++++++++++++++++
 2 files changed, 310 insertions(+)
 create mode 100644 arch/arm/boot/dts/armada-370-dlink-dns327l.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index a1c776b..8535e4e 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -612,6 +612,7 @@ dtb-$(CONFIG_ARCH_ZYNQ) += \
 	zynq-zybo.dtb
 dtb-$(CONFIG_MACH_ARMADA_370) += \
 	armada-370-db.dtb \
+	armada-370-dlink-dns327l.dtb \
 	armada-370-mirabox.dtb \
 	armada-370-netgear-rn102.dtb \
 	armada-370-netgear-rn104.dtb \
diff --git a/arch/arm/boot/dts/armada-370-dlink-dns327l.dts b/arch/arm/boot/dts/armada-370-dlink-dns327l.dts
new file mode 100644
index 0000000..12bc072
--- /dev/null
+++ b/arch/arm/boot/dts/armada-370-dlink-dns327l.dts
@@ -0,0 +1,309 @@
+/*
+ * Device Tree file for DLINK DNS-327L
+ *
+ * Copyright (C) 2014, Andrew Andrianov <andrew@xxxxxxxxxx>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */

Hi Andrew

There has been a move to license all the 370 and XP DTS files under
dual GPL and X11. Are you willing to add X11?

No problem, will fix.


+
+/* Remaining mysteries:
+ *
+ * There's still something unknown on i2c address 0x13
+ * CONFIG_ARM_MVEBU_V7_CPUIDLE=y causes hard freezes every 1-8 hours
+ *
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/gpio/gpio.h>
+#include "armada-370.dtsi"
+
+/ {
+	model = "DLINK DNS-327L";
+	compatible = "dlink,dns327l",
+		"marvell,armada370",
+		"marvell,armada-370-xp";
+
+	chosen {
+		bootargs = "console=ttyS0,115200 earlyprintk";

It would be nice to have

stdout-path = &uart0;

here. That will help with boot loaders, using this DT file, and it a
step towards removing the console=ttyS0,115200.

+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x20000000>; /* 512 MiB */
+	};
+
+	soc {
+		ranges = <MBUS_ID(0xf0, 0x01) 0 0xd0000000 0x100000
+			MBUS_ID(0x01, 0xe0) 0 0xfff00000 0x100000>;
+
+		pcie-controller {
+			status = "okay";
+
+			/* Connected to Marvell SATA controller */
+			pcie@1,0 {
+				/* Port 0, Lane 0 */
+				status = "okay";
+			};
+
+			/* Connected to NEC USB 3.0 controller */
+			pcie@2,0 {
+				/* Port 1, Lane 0 */
+				status = "okay";
+			};
+		};
+
+		internal-regs {
+			serial@12000 {
+				status = "okay";
+			};
+
+			serial@12100 {
+				status = "okay";
+			};

Are both serial ports usable?
Could you document the pinout for the console?

      Thanks
	Andrew


The serial console pinout is :
[RXD|(gap)|3.3v|GND|TXD]


I've been documenting the hardware extensively in my blog here:
http://ncrmnt.org/wp/2015/02/15/debian-dlink-dns-327l-the-guide/
Pictures of the PCB are all there.

The second UART is used to interface with weltrend mcu only.

I'll resubmit the patches with fixes sometime tomorrow evening (GMT+4).
Hopefully I'll also find out is hardware freezes with cpuidle enabled are
still there on 4.0-rc7.

--
Regards,
Andrew
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