On 09.10.2019 7:03, Yoshihiro Shimoda wrote:

According to the R-Car Gen2/3 manual, the bit 0 of MACCTLR register
should be written to 0 because the register is set to 1 on reset.

   The bit 0 set to 1, not the whole register (it has 1s also in the
bits 16-23).

To avoid unexpected behaviors from this incorrect setting, this
patch fixes it.

Fixes: b3327f7fae66 ("PCI: rcar: Try increasing PCIe link speed to 5 GT/s at 
boot")
Cc: <[email protected]> # v4.9+
Signed-off-by: Yoshihiro Shimoda <[email protected]>
Reviewed-by: Sergei Shtylyov <[email protected]>

[...]

MBR, Sergei

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