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| author | Richard Zhu <[email protected]> | 2025-04-16 08:13:11 +0000 |
|---|---|---|
| committer | Manivannan Sadhasivam <[email protected]> | 2025-04-27 11:41:43 +0000 |
| commit | ce0c43e855c7f652b6351110aaaabf9b521debd7 (patch) | |
| tree | 532f3000b16473d1a052b5f162a068c21fac9e7f /drivers/pci/controller/dwc/pcie-histb.c | |
| parent | PCI: imx6: Toggle the core reset for i.MX95 PCIe (diff) | |
| download | kernel-ce0c43e855c7f652b6351110aaaabf9b521debd7.tar.gz kernel-ce0c43e855c7f652b6351110aaaabf9b521debd7.zip | |
PCI: imx6: Add workaround for errata ERR051624
ERR051624: The Controller Without Vaux Cannot Exit L23 Ready Through Beacon
or PERST# De-assertion
When the auxiliary power is not available, the controller cannot exit from
L23 Ready with beacon or PERST# de-assertion when main power is not
removed. So the workaround is to set SS_RW_REG_1[SYS_AUX_PWR_DET] to 1.
This workaround is required irrespective of whether Vaux is supplied to the
link partner or not.
Signed-off-by: Richard Zhu <[email protected]>
[mani: subject and description rewording]
Signed-off-by: Manivannan Sadhasivam <[email protected]>
Reviewed-by: Frank Li <[email protected]>
Reviewed-by: Manivannan Sadhasivam <[email protected]>
Link: https://patch.msgid.link/[email protected]
Diffstat (limited to 'drivers/pci/controller/dwc/pcie-histb.c')
0 files changed, 0 insertions, 0 deletions