diff --git a/hw/block/m25p80_sfdp.h b/hw/block/m25p80_sfdp.h
index b75fd0b0c13f..ca2658a676e0 100644
--- a/hw/block/m25p80_sfdp.h
+++ b/hw/block/m25p80_sfdp.h
@@ -12,4 +12,6 @@
 
 #define M25P80_SFDP_AREA_SIZE 0x100
 
+extern const uint8_t m25p80_sfdp_n25q256a[M25P80_SFDP_AREA_SIZE];
+
 #endif
diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index 32925589ec7a..d053bdbb2805 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -233,11 +233,13 @@ static const FlashPartInfo known_devices[] = {
     { INFO("n25q128a11",  0x20bb18,      0,  64 << 10, 256, ER_4K) },
     { INFO("n25q128a13",  0x20ba18,      0,  64 << 10, 256, ER_4K) },
     { INFO("n25q256a11",  0x20bb19,      0,  64 << 10, 512, ER_4K) },
-    { INFO("n25q256a13",  0x20ba19,      0,  64 << 10, 512, ER_4K) },
+    { INFO("n25q256a13",  0x20ba19,      0,  64 << 10, 512, ER_4K),
+      .sfdp = m25p80_sfdp_n25q256a },
     { INFO("n25q512a11",  0x20bb20,      0,  64 << 10, 1024, ER_4K) },
     { INFO("n25q512a13",  0x20ba20,      0,  64 << 10, 1024, ER_4K) },
     { INFO("n25q128",     0x20ba18,      0,  64 << 10, 256, 0) },
-    { INFO("n25q256a",    0x20ba19,      0,  64 << 10, 512, ER_4K) },
+    { INFO("n25q256a",    0x20ba19,      0,  64 << 10, 512, ER_4K),
+      .sfdp = m25p80_sfdp_n25q256a },
     { INFO("n25q512a",    0x20ba20,      0,  64 << 10, 1024, ER_4K) },
     { INFO_STACKED("n25q00",    0x20ba21, 0x1000, 64 << 10, 2048, ER_4K, 4) },
     { INFO_STACKED("n25q00a",   0x20bb21, 0x1000, 64 << 10, 2048, ER_4K, 4) },
diff --git a/hw/block/m25p80_sfdp.c b/hw/block/m25p80_sfdp.c
new file mode 100644
index 000000000000..def94bd4ea02
--- /dev/null
+++ b/hw/block/m25p80_sfdp.c
@@ -0,0 +1,49 @@
+/*
+ * M25P80 Serial Flash Discoverable Parameter (SFDP)
+ *
+ * Copyright (c) 2020, IBM Corporation.
+ *
+ * This code is licensed under the GPL version 2 or later. See the
+ * COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "m25p80_sfdp.h"
+
+/*
+ * Micron
+ */
+const uint8_t m25p80_sfdp_n25q256a[M25P80_SFDP_AREA_SIZE] = {
+    0x53, 0x46, 0x44, 0x50, 0x00, 0x01, 0x00, 0xff,
+    0x00, 0x00, 0x01, 0x09, 0x30, 0x00, 0x00, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xe5, 0x20, 0xfb, 0xff, 0xff, 0xff, 0xff, 0x0f,
+    0x29, 0xeb, 0x27, 0x6b, 0x08, 0x3b, 0x27, 0xbb,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x27, 0xbb,
+    0xff, 0xff, 0x29, 0xeb, 0x0c, 0x20, 0x10, 0xd8,
+    0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+    0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
+};
diff --git a/hw/block/Makefile.objs b/hw/block/Makefile.objs
index 8855c2265639..b65a12c52b52 100644
--- a/hw/block/Makefile.objs
+++ b/hw/block/Makefile.objs
@@ -1,6 +1,6 @@
 common-obj-y += block.o cdrom.o hd-geometry.o
 common-obj-$(CONFIG_FDC) += fdc.o
-common-obj-$(CONFIG_SSI_M25P80) += m25p80.o
+common-obj-$(CONFIG_SSI_M25P80) += m25p80.o m25p80_sfdp.o
 common-obj-$(CONFIG_NAND) += nand.o
 common-obj-$(CONFIG_PFLASH_CFI01) += pflash_cfi01.o
 common-obj-$(CONFIG_PFLASH_CFI02) += pflash_cfi02.o
