target/linux/ar7/patches/500-serial_kludge.patch

   1 --- a/drivers/serial/8250.c
   2 +++ b/drivers/serial/8250.c
   3 @@ -286,6 +286,13 @@ static const struct serial8250_config ua
   4                 .fcr            = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
   5                 .flags          = UART_CAP_FIFO,
   6         },
   7 +       [PORT_AR7] = {
   8 +               .name           = "TI-AR7",
   9 +               .fifo_size      = 16,
  10 +               .tx_loadsz      = 16,
  11 +               .fcr            = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_00,
  12 +               .flags          = UART_CAP_FIFO | UART_CAP_AFE,
  13 +       },
  14  };
  15
  16  #if defined (CONFIG_SERIAL_8250_AU1X00)
  17 @@ -2687,7 +2694,11 @@ static void serial8250_console_putchar(s
  18  {
  19         struct uart_8250_port *up = (struct uart_8250_port *)port;
  20
  21 +#ifdef CONFIG_AR7
  22 +       wait_for_xmitr(up, BOTH_EMPTY);
  23 +#else
  24         wait_for_xmitr(up, UART_LSR_THRE);
  25 +#endif
  26         serial_out(up, UART_TX, ch);
  27  }
  28
  29 --- a/include/linux/serial_core.h
  30 +++ b/include/linux/serial_core.h
  31 @@ -41,7 +41,8 @@
  32  #define PORT_XSCALE    15
  33  #define PORT_RM9000    16      /* PMC-Sierra RM9xxx internal UART */
  34  #define PORT_OCTEON    17      /* Cavium OCTEON internal UART */
  35 -#define PORT_MAX_8250  17      /* max port ID */
  36 +#define PORT_AR7       18      /* TI AR7 internal UART */
  37 +#define PORT_MAX_8250  18      /* max port ID */
  38
  39  /*
  40   * ARM specific type numbers.  These are not currently guaranteed