merged.

Bruce

In message: [linux-yocto][linux-yocto 
v5.10/standard/ti-sdk-5.10/ti-j72xx][PATCH] PCI: j721e: disable retrain Link 
for Gen2 training
on 17/02/2022 Xulin Sun wrote:

> The quirk_retrain_flag = true is to retrain link for Gen2 training,
> however this will cause LINKDOWN and below call trace, here set the flag
> to false to fix this issue.
> 
> ERROR:   Unhandled External Abort received on 0x80000000 from S-EL1
> ERROR:   exception reason=0 syndrome=0xbf000000
> Unhandled Exception from EL1
> x0             = 0xfffffe0018ab0000
> x1             = 0x0000000000000000
> x2             = 0xfffffe001a400008
> x3             = 0x0000000000000001
> x4             = 0x000000000000000b
> x5             = 0xfffffc0805588000
> x6             = 0xfffffc08010ae130
> x7             = 0x0000000000000000
> x8             = 0xfffffe0012e66c28
> x9             = 0xfffffe00109ad980
> x10            = 0x0000000006aa84f3
> x11            = 0x00000000000c0266
> x12            = 0xfffffc0805aa829a
> x13            = 0xfffffc0805aa8a1c
> x14            = 0xffffffffffffffff
> x15            = 0xfffffc08010adc98
> x16            = 0x0000000000000002
> x17            = 0x0000000000000001
> x18            = 0x0000000000000020
> x19            = 0xfffffe00149cf734
> x20            = 0x0000000000000004
> x21            = 0xfffffc080418b000
> x22            = 0x0000000000000087
> x23            = 0xfffffe00149cf7e4
> x24            = 0x0000000000000000
> x25            = 0xfffffe0012d5aea8
> x26            = 0x0000000000000001
> x27            = 0xfffffc0805588000
> x28            = 0xfffffc080418b000
> x29            = 0xfffffe00149cf6b0
> x30            = 0xfffffe001097dbd4
> scr_el3        = 0x000000000000073d
> sctlr_el3      = 0x0000000030cd183f
> cptr_el3       = 0x0000000000000000
> tcr_el3        = 0x0000000080803520
> daif           = 0x00000000000002c0
> mair_el3       = 0x00000000004404ff
> 
> Signed-off-by: Xulin Sun <[email protected]>
> ---
>  drivers/pci/controller/cadence/pci-j721e.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pci/controller/cadence/pci-j721e.c 
> b/drivers/pci/controller/cadence/pci-j721e.c
> index 6fb4cfe3c411..917f61433c01 100644
> --- a/drivers/pci/controller/cadence/pci-j721e.c
> +++ b/drivers/pci/controller/cadence/pci-j721e.c
> @@ -431,7 +431,7 @@ static struct pci_ops cdns_ti_pcie_host_ops = {
>  
>  static const struct j721e_pcie_data j721e_pcie_rc_data = {
>       .mode = PCI_MODE_RC,
> -     .quirk_retrain_flag = true,
> +     .quirk_retrain_flag = false,
>       .is_intc_v1 = true,
>       .byte_access_allowed = false,
>       .ops = &j721e_pcie_ops,
> -- 
> 2.17.1
> 
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