Fix gen-device-svd to handle 64-bit

tools/gen-device-svd/gen-device-svd.go

@@ -140,7 +140,7 @@ type PeripheralField struct {
 type Bitfield struct {
 	Name        string
 	Description string
-	Value       uint32
+	Value       uint64
 }
 
 func formatText(text string) string {
@@ -208,7 +208,7 @@ func readSVD(path, sourceURL string) (*Device, error) {
 
 	for _, periphEl := range orderedPeripherals {
 		description := formatText(periphEl.Description)
-		baseAddress, err := strconv.ParseUint(periphEl.BaseAddress, 0, 32)
+		baseAddress, err := strconv.ParseUint(periphEl.BaseAddress, 0, 64)
 		if err != nil {
 			return nil, fmt.Errorf("invalid base address: %w", err)
 		}
@@ -581,12 +581,12 @@ func parseBitfields(groupName, regName string, fieldEls []*SVDField, bitfieldPre
 		fields = append(fields, Bitfield{
 			Name:        fmt.Sprintf("%s_%s%s_%s_Pos", groupName, bitfieldPrefix, regName, fieldName),
 			Description: fmt.Sprintf("Position of %s field.", fieldName),
-			Value:       lsb,
+			Value:       uint64(lsb),
 		})
 		fields = append(fields, Bitfield{
 			Name:        fmt.Sprintf("%s_%s%s_%s_Msk", groupName, bitfieldPrefix, regName, fieldName),
 			Description: fmt.Sprintf("Bit mask of %s field.", fieldName),
-			Value:       (0xffffffff >> (31 - (msb - lsb))) << lsb,
+			Value:       (0xffffffffffffffff >> (63 - (msb - lsb))) << lsb,
 		})
 		if lsb == msb { // single bit
 			fields = append(fields, Bitfield{
@@ -608,14 +608,14 @@ func parseBitfields(groupName, regName string, fieldEls []*SVDField, bitfieldPre
 			var err error
 			if strings.HasPrefix(enumEl.Value, "0b") {
 				val := strings.TrimPrefix(enumEl.Value, "0b")
-				enumValue, err = strconv.ParseUint(val, 2, 32)
+				enumValue, err = strconv.ParseUint(val, 2, 64)
 			} else {
-				enumValue, err = strconv.ParseUint(enumEl.Value, 0, 32)
+				enumValue, err = strconv.ParseUint(enumEl.Value, 0, 64)
 			}
 			if err != nil {
 				if enumBitSpecifier.MatchString(enumEl.Value) {
 					// NXP SVDs use the form #xx1x, #x0xx, etc for values
-					enumValue, err = strconv.ParseUint(strings.ReplaceAll(enumEl.Value[1:], "x", "0"), 2, 32)
+					enumValue, err = strconv.ParseUint(strings.ReplaceAll(enumEl.Value[1:], "x", "0"), 2, 64)
 					if err != nil {
 						panic(err)
 					}
@@ -656,7 +656,7 @@ func parseBitfields(groupName, regName string, fieldEls []*SVDField, bitfieldPre
 			fields = append(fields, Bitfield{
 				Name:        enumName,
 				Description: enumDescription,
-				Value:       uint32(enumValue),
+				Value:       enumValue,
 			})
 		}
 	}