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authorJonathan Corbet <corbet@lwn.net>2023-05-04 01:47:22 +0300
committerJonathan Corbet <corbet@lwn.net>2023-06-12 15:33:40 +0300
commite790a4ce529041bb21ec0b69a38c1b92f29df2cf (patch)
tree56f44e5f8f8fe8d94d43a4bd7743e82e4e7889d6 /Documentation/arch/arm/netwinder.rst
parentf1fcbaa18b28dec10281551dfe6ed3a3ed80e3d6 (diff)
downloadlinux-e790a4ce529041bb21ec0b69a38c1b92f29df2cf.tar.xz
arm: docs: Move Arm documentation to Documentation/arch/
Architecture-specific documentation is being moved into Documentation/arch/ as a way of cleaning up the top-level documentation directory and making the docs hierarchy more closely match the source hierarchy. Move Documentation/arm into arch/ (along with the Chinese equvalent translations). Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com> Cc: Chen-Yu Tsai <wens@csie.org> Cc: Jernej Skrabec <jernej.skrabec@gmail.com> Cc: Samuel Holland <samuel@sholland.org> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Cc: Alim Akhtar <alim.akhtar@samsung.com> Cc: Alex Shi <alexs@kernel.org> Cc: linux-doc@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-arch@vger.kernel.org Acked-by: Alexandre TORGUE <alexandre.torgue@foss.st.com> Reviewed-by: Yanteng Si <siyanteng@loongson.cn> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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+================================
+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
+======= ======= ===========