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| author | Shawn Lin <shawn.lin@rock-chips.com> | 2017-04-11 23:27:02 +0200 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-04-11 23:27:02 +0200 |
| commit | 64d6ea602ce619633a6e0af979e2c73738f6aeba (patch) | |
| tree | 9d900b17bdafaebda3792f4a57e9a7ecb7836ee6 /.get_maintainer.ignore | |
| parent | PCI: rockchip: Advertise 128-byte Read Completion Boundary support (diff) | |
| download | linux-64d6ea602ce619633a6e0af979e2c73738f6aeba.tar.xz linux-64d6ea602ce619633a6e0af979e2c73738f6aeba.zip | |
PCI: rockchip: Set PCI_EXP_LNKSTA_SLC in the Root Port
All platforms using Rockchip use a common clock for the Root Port and the
slot connected to it. Indicate this by setting the Slot Clock Configuration
(PCI_EXP_LNKSTA_SLC) bit in the Root Port's Link Status.
Per the Implementation Note in the spec (PCIe r3.1, sec 7.8.7), if the
downstream component also sets PCI_EXP_LNKSTA_SLC, software may set the
Common Clock Configuration (PCI_EXP_LNKCTL_CCC) bits on both ends of the
Link. This is done by pcie_aspm_configure_common_clock().
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Cc: Brian Norris <briannorris@chromium.org>
Cc: jeffy.chen <jeffy.chen@rock-chips.com>
Diffstat (limited to '.get_maintainer.ignore')
0 files changed, 0 insertions, 0 deletions