[PATCH v3 3/5] hw/block: Add Microchip's 25CSM04 to m25p80

[Chalapathi V]

Add Microchip's 25CSM04 Serial EEPROM to m25p80.  25CSM04 provides 4 Mbits
of Serial EEPROM utilizing the Serial Peripheral Interface (SPI) compatible
bus. The device is organized as 524288 bytes of 8 bits each (512Kbyte) and
is optimized for use in consumer and industrial applications where reliable
and dependable nonvolatile memory storage is essential.

Signed-off-by: Chalapathi V <chalapath...@linux.ibm.com>
---
 hw/block/m25p80.c | 3 +++
 hw/ppc/Kconfig    | 1 +
 2 files changed, 4 insertions(+)

diff --git a/hw/block/m25p80.c b/hw/block/m25p80.c
index 8dec134832..824a6c5c60 100644
--- a/hw/block/m25p80.c
+++ b/hw/block/m25p80.c
@@ -357,6 +357,9 @@ static const FlashPartInfo known_devices[] = {
       .sfdp_read = m25p80_sfdp_w25q512jv },
     { INFO("w25q01jvq",   0xef4021,      0,  64 << 10, 2048, ER_4K),
       .sfdp_read = m25p80_sfdp_w25q01jvq },
+
+    /* Microchip */
+    { INFO("25csm04",      0x29cc00,      0x100,  64 << 10,  8, 0) },
 };
 
 typedef enum {
diff --git a/hw/ppc/Kconfig b/hw/ppc/Kconfig
index 6f9670b377..a93430b734 100644
--- a/hw/ppc/Kconfig
+++ b/hw/ppc/Kconfig
@@ -40,6 +40,7 @@ config POWERNV
     select PCA9552
     select PCA9554
     select SSI
+    select SSI_M25P80
 
 config PPC405
     bool
-- 
2.39.3