diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/host/pcie-iproc.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/drivers/pci/host/pcie-iproc.c b/drivers/pci/host/pcie-iproc.c index a9b9cd8631f4..93b4d619c0ed 100644 --- a/drivers/pci/host/pcie-iproc.c +++ b/drivers/pci/host/pcie-iproc.c @@ -243,16 +243,13 @@ static void iproc_pcie_reset(struct iproc_pcie *pcie) { u32 val; - if (pcie->ep_is_internal) { - val = iproc_pcie_read_reg(pcie, IPROC_PCIE_CLK_CTRL); - val &= ~PAXC_RESET_MASK; - iproc_pcie_write_reg(pcie, IPROC_PCIE_CLK_CTRL, val); - udelay(100); - val |= PAXC_RESET_MASK; - iproc_pcie_write_reg(pcie, IPROC_PCIE_CLK_CTRL, val); - udelay(100); + /* + * PAXC and the internal emulated endpoint device downstream should not + * be reset. If firmware has been loaded on the endpoint device at an + * earlier boot stage, reset here causes issues. + */ + if (pcie->ep_is_internal) return; - } /* * Select perst_b signal as reset source. Put the device into reset, |