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| author | Niklas Cassel <niklas.cassel@axis.com> | 2016-10-14 23:54:55 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2016-11-04 15:28:55 -0500 |
| commit | 416379f9ebded501eda882e6af0a7aafc1866700 (patch) | |
| tree | 7354377d7649f6e9d3bb5104593deddb9fc1ad92 /include | |
| parent | ad110449e285c75eb53357e87419a73c96ccb1b9 (diff) | |
PCI: designware: Check for iATU unroll support after initializing host
dw_pcie_iatu_unroll_enabled() reads a dbi_base register. Reading any
dbi_base register before pp->ops->host_init has been called causes
"imprecise external abort" on platforms like ARTPEC-6, where the PCIe
module is disabled at boot and first enabled in pp->ops->host_init. Move
dw_pcie_iatu_unroll_enabled() to dw_pcie_setup_rc(), since it is after
pp->ops->host_init, but before pp->iatu_unroll_enabled is actually used.
Fixes: a0601a470537 ("PCI: designware: Add iATU Unroll feature")
Tested-by: James Le Cuirot <chewi@gentoo.org>
Signed-off-by: Niklas Cassel <niklas.cassel@axis.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Joao Pinto <jpinto@synopsys.com>
Acked-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions