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| author | Russell Currey <ruscur@russell.cc> | 2017-06-24 14:17:11 -0500 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2017-06-26 14:28:58 +1000 |
| commit | c40c9c75dfaefba227af9c4b5c03277e6d684690 (patch) | |
| tree | 1a77cea24fdf481aefb76433c62eb2c7d3e4f645 /hw | |
| parent | 82546c64a890e677c6bf5b2d1e276f43020f45d3 (diff) | |
| download | skiboot-c40c9c75dfaefba227af9c4b5c03277e6d684690.zip skiboot-c40c9c75dfaefba227af9c4b5c03277e6d684690.tar.gz skiboot-c40c9c75dfaefba227af9c4b5c03277e6d684690.tar.bz2 | |
phb4: Properly mask out link down errors during reset
Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/phb4.c | 27 |
1 files changed, 20 insertions, 7 deletions
@@ -1892,13 +1892,17 @@ static void phb4_prepare_link_change(struct pci_slot *slot, bool is_up) /* Don't block PCI-CFG */ p->flags &= ~PHB4_CFG_BLOCKED; - /* Clear error link enable & error link down kill enable */ - out_be64(p->regs + PHB_PCIE_MISC_STRAP, 0); - - /* Disable all error status indicators that trigger irqs */ - out_be64(p->regs + PHB_REGB_ERR_INF_ENABLE, 0); - out_be64(p->regs + PHB_REGB_ERR_ERC_ENABLE, 0); - out_be64(p->regs + PHB_REGB_ERR_FAT_ENABLE, 0); + /* Re-enable link down errors */ + out_be64(p->regs + PHB_PCIE_MISC_STRAP, + 0x0000060000000000ull); + + /* Re-enable error status indicators that trigger irqs */ + out_be64(p->regs + PHB_REGB_ERR_INF_ENABLE, + 0x2130006efca8bc00ull); + out_be64(p->regs + PHB_REGB_ERR_ERC_ENABLE, + 0x0000000000000000ull); + out_be64(p->regs + PHB_REGB_ERR_FAT_ENABLE, + 0xde8fff91035743ffull); /* * We might lose the bus numbers during the reset operation @@ -1919,6 +1923,15 @@ static void phb4_prepare_link_change(struct pci_slot *slot, bool is_up) reg32 |= PCIECAP_AER_CE_RECVR_ERR; phb4_pcicfg_write32(&p->phb, 0, p->aercap + PCIECAP_AER_CE_MASK, reg32); + + /* Clear error link enable & error link down kill enable */ + out_be64(p->regs + PHB_PCIE_MISC_STRAP, 0); + + /* Disable all error status indicators that trigger irqs */ + out_be64(p->regs + PHB_REGB_ERR_INF_ENABLE, 0); + out_be64(p->regs + PHB_REGB_ERR_ERC_ENABLE, 0); + out_be64(p->regs + PHB_REGB_ERR_FAT_ENABLE, 0); + /* Block PCI-CFG access */ p->flags |= PHB4_CFG_BLOCKED; } |