ath_pci PCI setup fixes.
* Break out the PCI setup override code into a new function. * Re-apply the PCI overrides on powersave resume. The retry timeout register isn't currently being saved/resumed by the PCI driver/bus code.
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svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=226355
@ -74,6 +74,16 @@ struct ath_pci_softc {
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#define BS_BAR 0x10
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#define PCIR_RETRY_TIMEOUT 0x41
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static void
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ath_pci_setup(device_t dev)
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{
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/*
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* Disable retry timeout to keep PCI Tx retries from
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* interfering with C3 CPU state.
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*/
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pci_write_config(dev, PCIR_RETRY_TIMEOUT, 0, 1);
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}
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static int
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ath_pci_probe(device_t dev)
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{
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@ -103,10 +113,9 @@ ath_pci_attach(device_t dev)
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pci_enable_busmaster(dev);
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/*
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* Disable retry timeout to keep PCI Tx retries from
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* interfering with C3 CPU state.
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* Setup other PCI bus configuration parameters.
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*/
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pci_write_config(dev, PCIR_RETRY_TIMEOUT, 0, 1);
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ath_pci_setup(dev);
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/*
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* Setup memory-mapping of PCI registers.
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@ -228,6 +237,11 @@ ath_pci_resume(device_t dev)
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{
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struct ath_pci_softc *psc = device_get_softc(dev);
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/*
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* Suspend/resume resets the PCI configuration space.
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*/
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ath_pci_setup(dev);
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ath_resume(&psc->sc_sc);
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return (0);
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