Added support for large SPI flashes when restoring.

Added a device reset upon restore success.
Updated README.md to reflect the changes.

5_restore.sh

@@ -23,22 +23,29 @@ fi
 
 echo "Ok, restoring original firmware! (We will not lock the device, so you won't have to repeat this procedure!)"
 
-echo "Restoring SPI flash..."
+if [[ $LARGE_FLASH == "1" ]]; then
+    echo "Restoring large SPI flash (no verify)..."
+    # verify is broken on large flashes
+    VERIFY_CMD=""
+else
+    echo "Restoring SPI flash..."
+    VERIFY_CMD="verify"
+fi
 if ! ${OPENOCD} -f "openocd/target_${TARGET}.cfg" -f "openocd/interface_${ADAPTER}.cfg" \
     -c "init;" \
     -c "halt;" \
-    -c "program backups/flash_backup_${TARGET}.bin 0x90000000 verify;" \
+    -c "program backups/flash_backup_${TARGET}.bin 0x90000000 ${VERIFY_CMD};" \
     -c "exit;" >>logs/5_openocd.log 2>&1; then
     echo "Restoring SPI flash failed. Check debug connection and try again."
     exit 1
 fi
 
-
 echo "Restoring internal flash..."
 if ! ${OPENOCD} -f "openocd/target_${TARGET}.cfg" -f "openocd/interface_${ADAPTER}.cfg" \
     -c "init;" \
     -c "halt;" \
     -c "program backups/internal_flash_backup_${TARGET}.bin 0x08000000 verify;" \
+    -c "reset;" \
     -c "exit;" >>logs/5_openocd.log 2>&1; then
     echo "Restoring internal flash failed. Check debug connection and try again."
     exit 1

README.md

@@ -127,6 +127,12 @@ Step 4 will cause a mass erase, and leave your device empty. To restore it, run
 
 Step 5 should succeed, if it doesn't: Try to run the script while holding down the power button of the Game & Watch. Try power-cycling the target in between attempts.
 
+If you replaced the SPI flash with a bigger size then also try :
+
+```
+LARGE_FLASH=1 ./5_restore.sh <stlink or jlink or rpi> <mario or zelda>
+```
+
 ### Getting help and contributing
 
 Feel free to join our [discord channel](https://discord.gg/rE2nHVAKvn) and ask any support questions in *#game-and-watch-support*.

openocd/stm32h7x_spiflash.cfg

@@ -63,8 +63,14 @@ proc hxa-001_qspi_init { } {
 	sleep 20								;# wait for the flash to come out of reset
 
 	mmw 0x52005000 0x30000000 0x00000001	;# OCTOSPI_CR |= FMODE=0x3, &= ~EN
+
+	if { [env LARGE_FLASH] == 0 } {
 		# OCTOSPI1: memory-mapped 1-line read mode with 3-byte addresses
 		mww 0x52005100 0x01002101				;# OCTOSPI_CCR: DMODE=0x1, ABMODE=0x0, ADSIZE=0x2, ADMODE=0x1, ISIZE=0x0, IMODE=0x1
+	} else {
+		# OCTOSPI1: memory-mapped 1-line read mode with 4-byte addresses
+		mww 0x52005100 0x01003101				;# OCTOSPI_CCR: DMODE=0x1, ABMODE=0x0, ADSIZE=0x3, ADMODE=0x1, ISIZE=0x0, IMODE=0x1
+	}
 	mww 0x52005110 0x00000003				;# OCTOSPI_IR: INSTR=READ
 	mmw 0x52005000 0x00000001 0x00000000	;# OCTOSPI_CR |= EN