W25Q16JV IQ and IM

Indicate the differences between IQ and IM with the 2 MiB version of the W25Q chip.

Author: bwshockley

ports/atmel-samd/external_flash/devices.h

@@ -180,9 +180,9 @@ typedef struct {
     .write_status_register_split = false, \
 }
 
-// Settings for the Winbond W25Q16JV 2MiB SPI flash.
+// Settings for the Winbond W25Q16JV 2MiB SPI flash. Note that JV-IQ has a different .memory_type (0x40)
 // Datasheet: https://www.winbond.com/resource-files/w25q16jv%20spi%20revf%2005092017.pdf
-#define W25Q16JV {\
+#define W25Q16JV_IQ {\
     .total_size = (1 << 21), /* 2 MiB */ \
     .start_up_time_us = 5000, \
     .manufacturer_id = 0xef, \
@@ -197,7 +197,7 @@ typedef struct {
     .write_status_register_split = false, \
 }
 
-// Settings for the Winbond W25Q16JV_IM 2MiB SPI flash. (W25Q16JVUXIM)
+// Settings for the Winbond W25Q16JV_IM 2MiB SPI flash. Note that JV-IM has a different .memory_type (0x70)
 // Datasheet: https://www.winbond.com/resource-files/w25q16jv%20spi%20revf%2005092017.pdf
 #define W25Q16JV_IM {\
     .total_size = (1 << 21), /* 2 MiB */ \