diff --git a/arch/powerpc/include/asm/fadump-internal.h b/arch/powerpc/include/asm/fadump-internal.h
index 6c2868d..a669aaa 100644
--- a/arch/powerpc/include/asm/fadump-internal.h
+++ b/arch/powerpc/include/asm/fadump-internal.h
@@ -19,16 +19,6 @@
 #define RMA_START	0x0
 #define RMA_END		(ppc64_rma_size)
 
-/*
- * On some Power systems where RMO is 128MB, it still requires minimum of
- * 256MB for kernel to boot successfully. When kdump infrastructure is
- * configured to save vmcore over network, we run into OOM issue while
- * loading modules related to network setup. Hence we need additional 64M
- * of memory to avoid OOM issue.
- */
-#define MIN_BOOT_MEM	(((RMA_END < (0x1UL << 28)) ? (0x1UL << 28) : RMA_END) \
-			+ (0x1UL << 26))
-
 /* The upper limit percentage for user specified boot memory size (25%) */
 #define MAX_BOOT_MEM_RATIO			4
 
@@ -128,6 +118,7 @@ struct fadump_ops {
 	u64	(*fadump_init_mem_struct)(struct fw_dump *fadump_conf);
 	u64	(*fadump_get_metadata_size)(void);
 	int	(*fadump_setup_metadata)(struct fw_dump *fadump_conf);
+	u64	(*fadump_get_bootmem_min)(void);
 	int	(*fadump_register)(struct fw_dump *fadump_conf);
 	int	(*fadump_unregister)(struct fw_dump *fadump_conf);
 	int	(*fadump_invalidate)(struct fw_dump *fadump_conf);
diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index 645d9d4..bd49b1f 100644
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -240,10 +240,10 @@ static void fadump_show_config(void)
  * that is required for a kernel to boot successfully.
  *
  */
-static inline unsigned long fadump_calculate_reserve_size(void)
+static inline u64 fadump_calculate_reserve_size(void)
 {
+	u64 base, size, bootmem_min;
 	int ret;
-	unsigned long long base, size;
 
 	if (fw_dump.reserve_bootvar)
 		pr_warn("'fadump_reserve_mem=' parameter is deprecated in favor of 'crashkernel=' parameter.\n");
@@ -293,7 +293,8 @@ static inline unsigned long fadump_calculate_reserve_size(void)
 	if (memory_limit && size > memory_limit)
 		size = memory_limit;
 
-	return (size > MIN_BOOT_MEM ? size : MIN_BOOT_MEM);
+	bootmem_min = fw_dump.ops->fadump_get_bootmem_min();
+	return (size > bootmem_min ? size : bootmem_min);
 }
 
 /*
@@ -323,8 +324,8 @@ static unsigned long get_fadump_area_size(void)
 
 int __init fadump_reserve_mem(void)
 {
+	u64 base, size, mem_boundary, bootmem_min, align = PAGE_SIZE;
 	bool is_memblock_bottom_up = memblock_bottom_up();
-	u64 base, size, mem_boundary, align = PAGE_SIZE;
 	int ret = 1;
 
 	if (!fw_dump.fadump_enabled)
@@ -350,6 +351,13 @@ int __init fadump_reserve_mem(void)
 				ALIGN(fw_dump.boot_memory_size, align);
 		}
 #endif
+
+		bootmem_min = fw_dump.ops->fadump_get_bootmem_min();
+		if (fw_dump.boot_memory_size < bootmem_min) {
+			pr_err("Can't enable fadump with boot memory size (0x%lx) less than 0x%llx\n",
+			       fw_dump.boot_memory_size, bootmem_min);
+			goto error_out;
+		}
 	}
 
 	/*
diff --git a/arch/powerpc/platforms/powernv/opal-fadump.c b/arch/powerpc/platforms/powernv/opal-fadump.c
index a89d3a0..006648e 100644
--- a/arch/powerpc/platforms/powernv/opal-fadump.c
+++ b/arch/powerpc/platforms/powernv/opal-fadump.c
@@ -9,6 +9,7 @@
 
 #include <linux/string.h>
 #include <linux/seq_file.h>
+#include <linux/of.h>
 #include <linux/of_fdt.h>
 #include <linux/libfdt.h>
 #include <linux/mm.h>
@@ -262,6 +263,11 @@ static int opal_fadump_setup_metadata(struct fw_dump *fadump_conf)
 	return err;
 }
 
+static u64 opal_fadump_get_bootmem_min(void)
+{
+	return OPAL_FADUMP_MIN_BOOT_MEM;
+}
+
 static int opal_fadump_register(struct fw_dump *fadump_conf)
 {
 	s64 rc = OPAL_PARAMETER;
@@ -606,6 +612,7 @@ static struct fadump_ops opal_fadump_ops = {
 	.fadump_init_mem_struct		= opal_fadump_init_mem_struct,
 	.fadump_get_metadata_size	= opal_fadump_get_metadata_size,
 	.fadump_setup_metadata		= opal_fadump_setup_metadata,
+	.fadump_get_bootmem_min		= opal_fadump_get_bootmem_min,
 	.fadump_register		= opal_fadump_register,
 	.fadump_unregister		= opal_fadump_unregister,
 	.fadump_invalidate		= opal_fadump_invalidate,
@@ -620,9 +627,9 @@ void __init opal_fadump_dt_scan(struct fw_dump *fadump_conf, u64 node)
 	const __be32 *prop;
 	unsigned long dn;
 	u64 addr = 0;
+	int i, len;
 	s64 ret;
 
-
 	/*
 	 * Check if Firmware-Assisted Dump is supported. if yes, check
 	 * if dump has been initiated on last reboot.
@@ -638,6 +645,27 @@ void __init opal_fadump_dt_scan(struct fw_dump *fadump_conf, u64 node)
 		return;
 	}
 
+	prop = of_get_flat_dt_prop(dn, "fw-load-area", &len);
+	if (prop) {
+		/*
+		 * Each f/w load area is an (address,size) pair,
+		 * 2 cells each, totalling 4 cells per range.
+		 */
+		for (i = 0; i < len / (sizeof(*prop) * 4); i++) {
+			u64 base, end;
+
+			base = of_read_number(prop + (i * 4) + 0, 2);
+			end = base;
+			end += of_read_number(prop + (i * 4) + 2, 2);
+			if (end > OPAL_FADUMP_MIN_BOOT_MEM) {
+				pr_err("F/W load area: 0x%llx-0x%llx\n",
+				       base, end);
+				pr_err("F/W version not supported!\n");
+				return;
+			}
+		}
+	}
+
 	fadump_conf->ops		= &opal_fadump_ops;
 	fadump_conf->fadump_supported	= 1;
 
diff --git a/arch/powerpc/platforms/powernv/opal-fadump.h b/arch/powerpc/platforms/powernv/opal-fadump.h
index d0e17d6..e630cb0 100644
--- a/arch/powerpc/platforms/powernv/opal-fadump.h
+++ b/arch/powerpc/platforms/powernv/opal-fadump.h
@@ -11,6 +11,13 @@
 #include <asm/reg.h>
 
 /*
+ * With kernel & initrd loaded at 512MB (with 256MB size), enforce a minimum
+ * boot memory size of 768MB to ensure f/w loading kernel and initrd doesn't
+ * mess with crash'ed kernel's memory during MPIPL.
+ */
+#define OPAL_FADUMP_MIN_BOOT_MEM		(0x30000000UL)
+
+/*
  * OPAL FADump metadata structure format version
  *
  * OPAL FADump kernel metadata structure stores kernel metadata needed to
diff --git a/arch/powerpc/platforms/pseries/rtas-fadump.c b/arch/powerpc/platforms/pseries/rtas-fadump.c
index bf1e8fc..1d8f287 100644
--- a/arch/powerpc/platforms/pseries/rtas-fadump.c
+++ b/arch/powerpc/platforms/pseries/rtas-fadump.c
@@ -116,6 +116,11 @@ static u64 rtas_fadump_init_mem_struct(struct fw_dump *fadump_conf)
 	return addr;
 }
 
+static u64 rtas_fadump_get_bootmem_min(void)
+{
+	return RTAS_FADUMP_MIN_BOOT_MEM;
+}
+
 static int rtas_fadump_register(struct fw_dump *fadump_conf)
 {
 	unsigned int wait_time;
@@ -467,6 +472,7 @@ static void rtas_fadump_trigger(struct fadump_crash_info_header *fdh,
 
 static struct fadump_ops rtas_fadump_ops = {
 	.fadump_init_mem_struct		= rtas_fadump_init_mem_struct,
+	.fadump_get_bootmem_min		= rtas_fadump_get_bootmem_min,
 	.fadump_register		= rtas_fadump_register,
 	.fadump_unregister		= rtas_fadump_unregister,
 	.fadump_invalidate		= rtas_fadump_invalidate,
diff --git a/arch/powerpc/platforms/pseries/rtas-fadump.h b/arch/powerpc/platforms/pseries/rtas-fadump.h
index 531f3f3..6602ff6 100644
--- a/arch/powerpc/platforms/pseries/rtas-fadump.h
+++ b/arch/powerpc/platforms/pseries/rtas-fadump.h
@@ -9,6 +9,15 @@
 #ifndef _PSERIES_RTAS_FADUMP_H
 #define _PSERIES_RTAS_FADUMP_H
 
+/*
+ * On some Power systems where RMO is 128MB, it still requires minimum of
+ * 256MB for kernel to boot successfully. When kdump infrastructure is
+ * configured to save vmcore over network, we run into OOM issue while
+ * loading modules related to network setup. Hence we need additional 64M
+ * of memory to avoid OOM issue.
+ */
+#define RTAS_FADUMP_MIN_BOOT_MEM	((0x1UL << 28) + (0x1UL << 26))
+
 /* Firmware provided dump sections */
 #define RTAS_FADUMP_CPU_STATE_DATA	0x0001
 #define RTAS_FADUMP_HPTE_REGION		0x0002
