diff --git a/sys/powerpc/pseries/platform_chrp.c b/sys/powerpc/pseries/platform_chrp.c
index 202ee059c528..16303f3af139 100644
--- a/sys/powerpc/pseries/platform_chrp.c
+++ b/sys/powerpc/pseries/platform_chrp.c
@@ -269,6 +269,15 @@ parse_drconf_memory(struct mem_region *ofmem, int *msz,
 				ofmem[lmsz].mr_size = (vm_size_t)lmb_size[1];
 				ofavail[lasz].mr_start = base;
 				ofavail[lasz].mr_size = (vm_size_t)lmb_size[1];
+				/* Collapse as we go along. */
+				if (lmsz > 1 && lasz > 1 &&
+				    ofmem[lmsz].mr_start == ofmem[lmsz-1].mr_start + ofmem[lmsz-1].mr_size &&
+				    ofavail[lasz].mr_start == ofavail[lmsz-1].mr_start + ofavail[lasz].mr_size) {
+					ofmem[lmsz-1].mr_size += ofmem[lmsz].mr_size;
+					ofavail[lasz-1].mr_size += ofavail[lasz].mr_size;
+					lmsz--;
+					lasz--;
+				}
 				lmsz++;
 				lasz++;
 			}