+@@ -41,6 +41,7 @@
+ #define OPCODE_BE_4K 0x20 /* Erase 4KiB block */
+ #define OPCODE_BE_32K 0x52 /* Erase 32KiB block */
+ #define OPCODE_CHIP_ERASE 0xc7 /* Erase whole flash chip */
++#define OPCODE_BE_4K_PMC 0xd7 /* Erase 4KiB block on PMC chips*/
+ #define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */
+ #define OPCODE_RDID 0x9f /* Read JEDEC ID */
+
+@@ -600,6 +601,7 @@ struct flash_info {
+ u16 flags;
+ #define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */
+ #define M25P_NO_ERASE 0x02 /* No erase command needed */
++#define SECT_4K_PMC 0x04 /* OPCODE_BE_4K_PMC works uniformly */
+ };
+
+ #define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags) \
+@@ -646,6 +648,10 @@ static const struct spi_device_id m25p_i