diff --git a/chipdrivers.h b/chipdrivers.h
index 243b64a..dd20631 100644
--- a/chipdrivers.h
+++ b/chipdrivers.h
@@ -45,12 +45,12 @@
 int spi_block_erase_20(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
 int spi_block_erase_50(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
 int spi_block_erase_52(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
-int spi_block_erase_81(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
-int spi_block_erase_d7(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
-int spi_block_erase_d8(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
 int spi_block_erase_60(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
 int spi_block_erase_62(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+int spi_block_erase_81(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
 int spi_block_erase_c7(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+int spi_block_erase_d7(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
+int spi_block_erase_d8(struct flashctx *flash, unsigned int addr, unsigned int blocklen);
 erasefunc_t *spi_get_erasefn_from_opcode(uint8_t opcode);
 int spi_chip_write_1(struct flashctx *flash, uint8_t *buf, unsigned int start, unsigned int len);
 int spi_byte_program(struct flashctx *flash, unsigned int addr, uint8_t databyte);
diff --git a/spi25.c b/spi25.c
index a818630..4f1452e 100644
--- a/spi25.c
+++ b/spi25.c
@@ -729,10 +729,16 @@
 		return NULL;
 	case 0x20:
 		return &spi_block_erase_20;
+	case 0x50:
+		return &spi_block_erase_50;
 	case 0x52:
 		return &spi_block_erase_52;
 	case 0x60:
 		return &spi_block_erase_60;
+	case 0x62:
+		return &spi_block_erase_62;
+	case 0x81:
+		return &spi_block_erase_81;
 	case 0xc7:
 		return &spi_block_erase_c7;
 	case 0xd7: