--- zzzz-none-000/linux-3.10.107/arch/mips/mti-malta/malta-pci.c	2017-06-27 09:49:32.000000000 +0000
+++ vr9-7490-729/linux-3.10.107/arch/mips/mti-malta/malta-pci.c	2021-11-10 11:53:54.000000000 +0000
@@ -198,6 +198,12 @@
 		MSC_READ(MSC01_PCI_SC2PMBASL, start);
 		MSC_READ(MSC01_PCI_SC2PMMSKL, mask);
 		MSC_READ(MSC01_PCI_SC2PMMAPL, map);
+#if defined(CONFIG_EVA) && !defined(CONFIG_EVA_OLD_MALTA_MAP)
+		/* shift PCI devices to upper 2GB, to prevent PCI bridges loop */
+		map |= 0xa0000000;
+		MSC_WRITE(MSC01_PCI_SC2PMMAPL, map);
+		MSC_READ(MSC01_PCI_SC2PMMAPL, map);
+#endif
 		msc_mem_resource.start = start & mask;
 		msc_mem_resource.end = (start & mask) | ~mask;
 		msc_controller.mem_offset = (start & mask) - (map & mask);