-#define SERIAL_DEFAULT_CONFIG SERIAL_PAR_NONE << SERIAL_PAR_SHIFT | \
- SERIAL_8_BITS << SERIAL_BITS_SHIFT | \
- SERIAL_ONE_STOP << SERIAL_STOP_SHIFT
+#define SERIAL_DEFAULT_CONFIG \
+ (SERIAL_PAR_NONE << SERIAL_PAR_SHIFT | \
+ SERIAL_8_BITS << SERIAL_BITS_SHIFT | \
+ SERIAL_ONE_STOP << SERIAL_STOP_SHIFT)
+
+enum serial_chip_type {
+ SERIAL_CHIP_UNKNOWN = -1,
+ SERIAL_CHIP_16550_COMPATIBLE,
+};
+
+enum adr_space_type {
+ SERIAL_ADDRESS_SPACE_MEMORY = 0,
+ SERIAL_ADDRESS_SPACE_IO,
+};
+
+/**
+ * struct serial_device_info - structure to hold serial device info
+ *
+ * @type: type of the UART chip
+ * @addr_space: address space to access the registers
+ * @addr: physical address of the registers
+ * @reg_width: size (in bytes) of the IO accesses to the registers
+ * @reg_offset: offset to apply to the @addr from the start of the registers
+ * @reg_shift: quantity to shift the register offsets by
+ * @clock: UART base clock speed in Hz
+ * @baudrate: baud rate
+ */
+struct serial_device_info {
+ enum serial_chip_type type;
+ enum adr_space_type addr_space;
+ ulong addr;
+ u8 reg_width;
+ u8 reg_offset;
+ u8 reg_shift;
+ unsigned int clock;
+ unsigned int baudrate;
+};
+
+#define SERIAL_DEFAULT_ADDRESS 0xBADACCE5
+#define SERIAL_DEFAULT_CLOCK (16 * 115200)