swh:1:snp:c2847dfd741eae21606027cf29250d1ebcd63fb4
Tip revision: 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5 authored by Linus Torvalds on 16 August 2020, 20:04:57 UTC
Linux 5.9-rc1
Linux 5.9-rc1
Tip revision: 9123e3a
netwinder.rst
================================
NetWinder specific documentation
================================
The NetWinder is a small low-power computer, primarily designed
to run Linux. It is based around the StrongARM RISC processor,
DC21285 PCI bridge, with PC-type hardware glued around it.
Port usage
==========
======= ====== ===============================
Min Max Description
======= ====== ===============================
0x0000 0x000f DMA1
0x0020 0x0021 PIC1
0x0060 0x006f Keyboard
0x0070 0x007f RTC
0x0080 0x0087 DMA1
0x0088 0x008f DMA2
0x00a0 0x00a3 PIC2
0x00c0 0x00df DMA2
0x0180 0x0187 IRDA
0x01f0 0x01f6 ide0
0x0201 Game port
0x0203 RWA010 configuration read
0x0220 ? SoundBlaster
0x0250 ? WaveArtist
0x0279 RWA010 configuration index
0x02f8 0x02ff Serial ttyS1
0x0300 0x031f Ether10
0x0338 GPIO1
0x033a GPIO2
0x0370 0x0371 W83977F configuration registers
0x0388 ? AdLib
0x03c0 0x03df VGA
0x03f6 ide0
0x03f8 0x03ff Serial ttyS0
0x0400 0x0408 DC21143
0x0480 0x0487 DMA1
0x0488 0x048f DMA2
0x0a79 RWA010 configuration write
0xe800 0xe80f ide0/ide1 BM DMA
======= ====== ===============================
Interrupt usage
===============
======= ======= ========================
IRQ type Description
======= ======= ========================
0 ISA 100Hz timer
1 ISA Keyboard
2 ISA cascade
3 ISA Serial ttyS1
4 ISA Serial ttyS0
5 ISA PS/2 mouse
6 ISA IRDA
7 ISA Printer
8 ISA RTC alarm
9 ISA
10 ISA GP10 (Orange reset button)
11 ISA
12 ISA WaveArtist
13 ISA
14 ISA hda1
15 ISA
======= ======= ========================
DMA usage
=========
======= ======= ===========
DMA type Description
======= ======= ===========
0 ISA IRDA
1 ISA
2 ISA cascade
3 ISA WaveArtist
4 ISA
5 ISA
6 ISA
7 ISA WaveArtist
======= ======= ===========