serial: ns16550: Add RX interrupt buffer support

[people/ms/u-boot.git] / include / ns16550.h

diff --git a/include/ns16550.h b/include/ns16550.h
index 5fcbcd2e74e3a2965eda64905416f1f2b792d4bc..7e9944d0d92e1fddb3b56908d12a6873115b74de 100644 (file)
--- a/include/ns16550.h
+++ b/include/ns16550.h
@@ -51,6 +51,10 @@
  * @base:              Base register address
  * @reg_shift:         Shift size of registers (0=byte, 1=16bit, 2=32bit...)
  * @clock:             UART base clock speed in Hz
+ *
+ * @buf:               Pointer to the RX interrupt buffer
+ * @rd_ptr:            Read pointer in the RX interrupt buffer
+ * @wr_ptr:            Write pointer in the RX interrupt buffer
  */
 struct ns16550_platdata {
        unsigned long base;
@@ -58,6 +62,12 @@ struct ns16550_platdata {
        int clock;
        int reg_offset;
        u32 fcr;
+
+       int irq;
+
+       char *buf;
+       int rd_ptr;
+       int wr_ptr;
 };
 
 struct udevice;