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net: Add SunGEM device emulation as found on Apple UniNorth

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This adds a simplistic emulation of the Sun GEM ethernet controller
found in Apple ASICs.

Currently we only support the Apple UniNorth 1.x variant, but the
other Apple or Sun variants should mostly be a matter of adding
PCI IDs options.

We have a very primitive emulation of a single Broadcom 5201 PHY
which is supported by the MacOS driver.

This model brings out-of-the-box networking to MacOS 9, and all
versions of OS X I tried with the mac99 platform.

Further improvements from Mark:
- Remove sungem.h file, moving constants into sungem.c as required
- Switch to using tracepoints for debugging
- Split register blocks into separate memory regions
- Use arrays in SunGEMState to hold register values
- Add state-saving support

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Benjamin Herrenschmidt 2017-09-06 19:19:55 +01:00 • committed by David Gibson
parent 3dabde1128
commit f85504b23a
6 changed files with 1496 additions and 0 deletions
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1
include/hw/pci/pci_ids.h
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@ -183,6 +183,7 @@
#define PCI_VENDOR_ID_APPLE 0x106b
#define PCI_DEVICE_ID_APPLE_UNI_N_AGP 0x0020
#define PCI_DEVICE_ID_APPLE_U3_AGP 0x004b
#define PCI_DEVICE_ID_APPLE_UNI_N_GMAC 0x0021
#define PCI_VENDOR_ID_SUN 0x108e
#define PCI_DEVICE_ID_SUN_EBUS 0x1000