ATI video card not recognized

[Reinoud Zandijk <reinoud%NetBSD.org@localhost>]

Hi folks,

my old videocard died and I replaced it with a slightly newer one but it isn't
recognized and nothing other than vga0 attaches. Its an Gigabyte Radeon RX460
with 2 GB ram.

002:00:0: ATI Technologies Radeon RX460 (VGA display, revision 0xcf)
002:00:1: ATI Technologies Radeon RX 460/550/640SP, RX 560/560X HD Audio
Controller (mixed mode multimedia)

002:00:0: 0x67ef1002 (0x030000cf)
002:00:1: 0xaae01002 (0x04030000)

And the following attaches:
[     1.036422] vga0 at pci2 dev 0 function 0: vendor 1002 product 67ef (rev.
0xcf)
[     1.036422] wsdisplay0 at vga0 kbdmux 1: console (80x25, vt100 emulation),
using wskbd0
[     1.036422] wsmux1: connecting to wsdisplay0
[     1.036422] drm at vga0 not configured
[     1.036422] hdaudio0 at pci2 dev 0 function 1: HD Audio Controller
...

So no DRI/DRM and X attaches using VESA and at least gets a workable display.

The model name on the box is:
GV-RX460WF20C-2GD, AMD Radeon RX460/rev 1.0, PCI-E 3.0...

Is there any hope for adding this? Does the default ATI/AMD Radeon driver
support this and is this thus just a missing detection in drmkms?

Thanks in advance,
Reinoud