larger flash support

teensy4/avr/eeprom.h

 
 #include "avr_functions.h"
 
+#if defined(ARDUINO_TEENSY40)
 #define E2END 0x437
+#elif defined(ARDUINO_TEENSY41)
+#define E2END 0x10BB
+#endif
 
 #endif

teensy4/bootdata.c

 	0,			// reserved
 	0,			// reserved
 
+#if defined(ARDUINO_TEENSY40)
 	0x00200000,		// sflashA1Size			0x50
+#elif defined(ARDUINO_TEENSY41)
+	0x00800000,		// sflashA1Size			0x50
+#else
+#error "Unknow flash chip size";
+#endif
 	0,			// sflashA2Size
 	0,			// sflashB1Size
 	0,			// sflashB2Size

teensy4/eeprom.c

 #include <string.h>
 #include "debug/printf.h"
 
+#if defined(ARDUINO_TEENSY40)
 #define FLASH_BASEADDR 0x601F0000
 #define FLASH_SECTORS  15
+#elif defined(ARDUINO_TEENSY41)
+#define FLASH_BASEADDR 0x607C0000
+#define FLASH_SECTORS  63
+#endif
+
 
 #if E2END > (255*FLASH_SECTORS-1)
 #error "E2END is set larger than the maximum possible EEPROM size"
 	FLEXSPI_LUT60 = LUT0(CMD_SDR, PINS1, 0x32) | LUT1(ADDR_SDR, PINS1, 24); // 32 = quad write
 	FLEXSPI_LUT61 = LUT0(WRITE_SDR, PINS4, 1);
 	FLEXSPI_IPTXFCR = FLEXSPI_IPTXFCR_CLRIPTXF; // clear tx fifo
-	FLEXSPI_IPCR0 = (uint32_t)addr & 0x001FFFFF;
+	FLEXSPI_IPCR0 = (uint32_t)addr & 0x007FFFFF;
 	FLEXSPI_IPCR1 = FLEXSPI_IPCR1_ISEQID(15) | FLEXSPI_IPCR1_IDATSZ(len);
 	FLEXSPI_IPCMD = FLEXSPI_IPCMD_TRG;
 	const uint8_t *src = (const uint8_t *)data;
 	while (!(FLEXSPI_INTR & FLEXSPI_INTR_IPCMDDONE)) ; // wait
 	FLEXSPI_INTR = FLEXSPI_INTR_IPCMDDONE;
 	FLEXSPI_LUT60 = LUT0(CMD_SDR, PINS1, 0x20) | LUT1(ADDR_SDR, PINS1, 24); // 20 = sector erase
-	FLEXSPI_IPCR0 = (uint32_t)addr & 0x001FF000;
+	FLEXSPI_IPCR0 = (uint32_t)addr & 0x007FF000;
 	FLEXSPI_IPCR1 = FLEXSPI_IPCR1_ISEQID(15);
 	FLEXSPI_IPCMD = FLEXSPI_IPCMD_TRG;
 	while (!(FLEXSPI_INTR & FLEXSPI_INTR_IPCMDDONE)) ; // wait