1 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
2 Subject: [PATCH] PCI: iproc: Ignore ARM core aborts when running on bcma bus
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7 Northstar devices have host bridges that forward errors to the ARM core.
8 These errors happen during PCI bus probing (device enumeration) and are
9 expected. There is no reason for them to cause a die() so this patch
10 adds a handler silencing them.
12 Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
15 --- a/drivers/pci/host/pcie-iproc-bcma.c
16 +++ b/drivers/pci/host/pcie-iproc-bcma.c
17 @@ -40,6 +40,15 @@ static int iproc_pcie_bcma_map_irq(const
18 return bcma_core_irq(bdev, 5);
21 +static int iproc_pcie_bcma_abort_handler(unsigned long addr, unsigned int fsr,
22 + struct pt_regs *regs)
30 static int iproc_pcie_bcma_probe(struct bcma_device *bdev)
32 struct iproc_pcie *pcie;
33 @@ -65,6 +74,9 @@ static int iproc_pcie_bcma_probe(struct
35 pcie->map_irq = iproc_pcie_bcma_map_irq;
37 + hook_fault_code(16 + 6, iproc_pcie_bcma_abort_handler, SIGBUS, BUS_OBJERR,
38 + "imprecise external abort");
40 ret = iproc_pcie_setup(pcie, &res);
42 dev_err(pcie->dev, "PCIe controller setup failed\n");