AuxXxilium/linux_dsm_epyc7002
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parisc: Hide built-in serial aux port of Tosca GSP card

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Similar to commit bcf3f1752a ("parisc: Hide Diva-built-in serial aux and
graphics card") it's better to hide the built-in serial AUX port at bootup.
When not hiding the port, the Linux serial driver will try to manage this port
and fails on a A500 server like this:

 serial 0000:00:05.0: enabling device (0000 -> 0003)
 serial 0000:00:05.0: enabling SERR and PARITY (0003 -> 0143)
 0000:00:05.0: ttyS3 at MMIO 0xfffffffff8005000 (irq = 71, base_baud = 115200) is a 16550A
 serial 0000:00:05.0: Couldn't register serial port 0, irq 71, type 2, error -28

Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Helge Deller 2018-12-26 20:46:27 +01:00
parent a3b22b9f11
commit 81fe5bba88
1 changed files with 12 additions and 0 deletions
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12
drivers/parisc/lba_pci.c
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@ -1743,3 +1743,15 @@ static void quirk_diva_aux_disable(struct pci_dev *dev)
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_DIVA_AUX,
quirk_diva_aux_disable);
static void quirk_tosca_aux_disable(struct pci_dev *dev)
{
if (dev->subsystem_vendor != PCI_VENDOR_ID_HP ||
dev->subsystem_device != 0x104a)
return;
dev_info(&dev->dev, "Hiding Tosca secondary built-in AUX serial device");
dev->device = 0;
}
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_DIVA,
quirk_tosca_aux_disable);