Add some data found in TI's application note "SCPA035: PCI1510
Implementation Guide" about default values.
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=282447
@ -511,6 +511,13 @@ cbb_chipinit(struct cbb_softc *sc)
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* register since changing them have subtle side effects
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* for different variants of the card and are
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* extremely difficult to exaustively test.
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*
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* Also, the TI 1510/1520 changed the default for the MFUNC
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* register from 0x0 to 0x1000 to enable IRQSER by default.
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* We want to be careful to avoid overriding that, and the
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* below test will do that. Should this check prove to be
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* too permissive, we should just check against 0 and 0x1000
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* and not touch it otherwise.
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*/
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mux = pci_read_config(sc->dev, CBBR_MFUNC, 4);
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sysctrl = pci_read_config(sc->dev, CBBR_SYSCTRL, 4);
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