Patching DeviceTree to set port as eSATA?

[AlexFullmoon]

I decided to try 1621+ on my N54L, and it worked well enough, but eSATA drive that I use for backups got recognized as internal. Before that, on 3622xs+, I used these lines in synoinfo:

"internalportcfg": "0x2f",
"esataportcfg": "0x10",
"usbportcfg": "0x1fc0",

I saw some mentions that "you'll have to patch/build device tree manually" but couldn't find any actual information on how to actually do that.

[abced]

I'm also interested in this.

[Peter Suh]

In the Device-Tree based model, it includes the following nodes
You need to configure the model.dtb file.

 

	esata_port@1 {

		ahci {
			pcie_root = "00:13.0,00.0";
			ata_port = <0x3>;
		};
	};

 

*portcfg related settings are only used in Non DT based models.

I looked at the addons of the current Redfill loaders.
I am applying and following most of the scripts in the disks addon.
However, parts related to esata nodes are not supported.

I will modify and test it in TCRP to provide support if possible.
I'll have to look for a laptop with eSATA first.

[Peter Suh]

Reporting is a little late.
A few days ago, I purchased the product below and tried it out.

 

https://www.ebay.co.uk/itm/385760379322

 

 

Tested on DT-based ds920+.
esata does not separate it into a separate device tree.
It is considered one of the sata ports.

As a result as below, model.dts and model.dtb are converted via the dtbpatch add-on..
It has been confirmed that it is created automatically.

No separate work is required on synoinfo.conf or model.dtb.
The add-on maps the disk automatically.

 

 

SynologyNAS> ll /sys/block | grep -e sata -e sd
lrwxrwxrwx    1 root     root             0 Sep  7 13:32 sata1 -> ../devices/pci0000:00/0000:00:1f.2/ata5/host4/target4:0:0/4:0:0:0/block/sata1

 

 

Running "install.sh" for dtbpatch->on_boot->modules
dtbpatch - modules
'dtc' -> '/usr/sbin/dtc'
'readlink' -> '/usr/sbin/readlink'
Patching /etc.defaults/
ls: /sys/bus/usb/devices/usb*: No such file or directory
/dts-v1/;
/ {
    compatible = "Synology";
    model = "synology_geminilake_920+";
    version = <0x01>;
    internal_slot@1 {
        protocol_type = "sata";
        ahci {
            pcie_root = "00:1f.2";
            ata_port = <0x04>;
        };
    };
};
backup /etc.defaults/model.dtb to model_bak.dtb
'/etc.defaults/model.dtb' -> '/etc.defaults/model_bak.dtb'
/var/run/model.dts:6.21-12.7: Warning (unit_address_vs_reg): /internal_slot@1: node has a unit name, but no reg or ranges property
'/etc.defaults/model.dtb' -> '/run/model.dtb'
System Disk: (not supported in junior mode)
Internal Disk
01: /dev/sata1
02: 
03: 
04: 
05: 
06: 
07: 
08: 
09: 
10: 
11: 
12: 
13: 
14: 
15: 
16: 

Esata port count: 0
USB Device

Ran "install.sh" for dtbpatch->on_boot->modules - exit=0

 

Edited September 7, 2023 by Peter Suh

[AlexFullmoon]

Okay, reporting with my results (success). Used arpl-i18n 23.9.7. See general instructions here: https://github.com/wjz304/arpl-i18n/issues/226

 

First, grab device tree compiler https://github.com/wjz304/arpl-i18n/files/12665011/dtc_win.zip or, if using it in in DSM, from https://github.com/wjz304/arpl-addons/tree/main/disks/all/usr/bin

(probably recommended) Connect drive and reboot so it loads into device tree.

Download current device tree from your system as described in guide (decompile /etc/model.dtb and download resulting .dts)

For your eSATA drive replace internal_slot@N with esata_slot@1.

 

For example, with HP Microserver gen7 eSATA is #5 on controller (with #6 supposed to be ODD):

	internal_slot@4 {
		protocol_type = "sata";

		ahci {
			pcie_root = "00:11.0";
			ata_port = <0x03>;
		};
	};

	internal_slot@5 {
		protocol_type = "sata";
		ahci {
			pcie_root = "00:11.0";
			ata_port = <0x04>;
		};
	};
              

Change to:

	internal_slot@4 {
		protocol_type = "sata";

		ahci {
			pcie_root = "00:11.0";
			ata_port = <0x03>;
		};
	};

	esata_port@1 {
		ahci {
			pcie_root = "00:11.0";
			ata_port = <0x04>;
		};
	};

Then rebuild loader, in arpl-i18n in advanced config there's option to upload custom .dts.

 

That's it.