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From:   YunQiang Su <syq@debian.org>
Date:   Tue, 1 Jan 2019 16:42:03 +0800
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I met a kernel problem for both 4.9 and 4.19 kernel

This error happens in pci/pcie-octeon.c, in function
   __cvmx_pcie_rc_initialize_gen2

ciu_soft_prst.u64 = cvmx_read_csr(CVMX_CIU_SOFT_PRST);

When disabble CONFIG_PCI, it won't meet this problem.