diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index dd1cabc2ea0f6e4ec0ecb9f12cc56144ffa4eb9d..e13a3c0caa02833d531910188345ae4358b1de76 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -126,7 +126,7 @@ unsigned long mmu_mapin_ram(unsigned long base, unsigned long top);
 
 #ifdef CONFIG_PPC_FSL_BOOK3E
 extern unsigned long map_mem_in_cams(unsigned long ram, int max_cam_idx,
-				     bool dryrun);
+				     bool dryrun, bool init);
 extern unsigned long calc_cam_sz(unsigned long ram, unsigned long virt,
 				 phys_addr_t phys);
 #ifdef CONFIG_PPC32
diff --git a/arch/powerpc/mm/nohash/fsl_book3e.c b/arch/powerpc/mm/nohash/fsl_book3e.c
index fdf1029e62f0a1c44e8b7cec0320432ef402cd66..375b2b8238c1616e84707a525b61ee86adf48fab 100644
--- a/arch/powerpc/mm/nohash/fsl_book3e.c
+++ b/arch/powerpc/mm/nohash/fsl_book3e.c
@@ -167,7 +167,7 @@ unsigned long calc_cam_sz(unsigned long ram, unsigned long virt,
 
 static unsigned long map_mem_in_cams_addr(phys_addr_t phys, unsigned long virt,
 					unsigned long ram, int max_cam_idx,
-					bool dryrun)
+					bool dryrun, bool init)
 {
 	int i;
 	unsigned long amount_mapped = 0;
@@ -202,12 +202,12 @@ static unsigned long map_mem_in_cams_addr(phys_addr_t phys, unsigned long virt,
 	return amount_mapped;
 }
 
-unsigned long map_mem_in_cams(unsigned long ram, int max_cam_idx, bool dryrun)
+unsigned long map_mem_in_cams(unsigned long ram, int max_cam_idx, bool dryrun, bool init)
 {
 	unsigned long virt = PAGE_OFFSET;
 	phys_addr_t phys = memstart_addr;
 
-	return map_mem_in_cams_addr(phys, virt, ram, max_cam_idx, dryrun);
+	return map_mem_in_cams_addr(phys, virt, ram, max_cam_idx, dryrun, init);
 }
 
 #ifdef CONFIG_PPC32
@@ -248,7 +248,7 @@ void __init adjust_total_lowmem(void)
 	ram = min((phys_addr_t)__max_low_memory, (phys_addr_t)total_lowmem);
 
 	i = switch_to_as1();
-	__max_low_memory = map_mem_in_cams(ram, CONFIG_LOWMEM_CAM_NUM, false);
+	__max_low_memory = map_mem_in_cams(ram, CONFIG_LOWMEM_CAM_NUM, false, true);
 	restore_to_as0(i, 0, 0, 1);
 
 	pr_info("Memory CAM mapping: ");
@@ -319,11 +319,11 @@ notrace void __init relocate_init(u64 dt_ptr, phys_addr_t start)
 		/* map a 64M area for the second relocation */
 		if (memstart_addr > start)
 			map_mem_in_cams(0x4000000, CONFIG_LOWMEM_CAM_NUM,
-					false);
+					false, true);
 		else
 			map_mem_in_cams_addr(start, PAGE_OFFSET + offset,
 					0x4000000, CONFIG_LOWMEM_CAM_NUM,
-					false);
+					false, true);
 		restore_to_as0(n, offset, __va(dt_ptr), 1);
 		/* We should never reach here */
 		panic("Relocation error");
diff --git a/arch/powerpc/mm/nohash/kaslr_booke.c b/arch/powerpc/mm/nohash/kaslr_booke.c
index 4c74e8a5482bf89ff737d2940a3bddaa26d05e30..8fc49b1b4a913d35ccfd029af33108c6d6497510 100644
--- a/arch/powerpc/mm/nohash/kaslr_booke.c
+++ b/arch/powerpc/mm/nohash/kaslr_booke.c
@@ -314,7 +314,7 @@ static unsigned long __init kaslr_choose_location(void *dt_ptr, phys_addr_t size
 		pr_warn("KASLR: No safe seed for randomizing the kernel base.\n");
 
 	ram = min_t(phys_addr_t, __max_low_memory, size);
-	ram = map_mem_in_cams(ram, CONFIG_LOWMEM_CAM_NUM, true);
+	ram = map_mem_in_cams(ram, CONFIG_LOWMEM_CAM_NUM, true, false);
 	linear_sz = min_t(unsigned long, ram, SZ_512M);
 
 	/* If the linear size is smaller than 64M, do not randmize */
diff --git a/arch/powerpc/mm/nohash/tlb.c b/arch/powerpc/mm/nohash/tlb.c
index 5872f69141d544d4b4d95a1d71e473d48092a6ba..fc195b9f524bc8d33e027cc429b3c72019a5b447 100644
--- a/arch/powerpc/mm/nohash/tlb.c
+++ b/arch/powerpc/mm/nohash/tlb.c
@@ -643,7 +643,7 @@ static void early_init_this_mmu(void)
 
 		if (map)
 			linear_map_top = map_mem_in_cams(linear_map_top,
-							 num_cams, false);
+							 num_cams, true, true);
 	}
 #endif
 
@@ -764,7 +764,7 @@ void setup_initial_memory_limit(phys_addr_t first_memblock_base,
 		num_cams = (mfspr(SPRN_TLB1CFG) & TLBnCFG_N_ENTRY) / 4;
 
 		linear_sz = map_mem_in_cams(first_memblock_size, num_cams,
-					    true);
+					    false, true);
 
 		ppc64_rma_size = min_t(u64, linear_sz, 0x40000000);
 	} else