Open PciIo protocol and use it to initialize the device. The initialization of LSI 53C895A is simple: just set the SRST bit in Interrupt Status Zero register to reset the device. v2: - Use the BITx macros for the bit constants - Add the closing of PciIo protocol in LsiScsiControllerStop() Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com> Signed-off-by: Gary Lin <glin@suse.com> Message-Id: <20200717061130.8881-8-glin@suse.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com>