Roman Kuzmenko wrote:

Hello.

Please, help me to investigate why the delays present in the
"mpc5xxx_read_config_dword" and "mpc5xxx_write_config_dword" functions
in the "arch/ppc/kernel/mpc52xx_pci.c" file.

I.e.
==========================
  *(volatile u32 *)MPC5xxx_PCI_CAR = 0;

quoted

udelay(10);

  return 0;
==========================

I was neither able to find any reference at the MPC5200 documentation
supplied by FreeScale nor reproduce any error with these lines got
removed.

Thank you.

kernel version?

--
Regards
Andrey Volkov