target/linux/ar7/patches-2.6.22/500-serial_kludge.patch

   1 diff -urN linux-2.6.22.orig/drivers/serial/8250.c linux-2.6.22/drivers/serial/8250.c
   2 --- linux-2.6.22.orig/drivers/serial/8250.c     2007-07-09 01:32:17.000000000 +0200
   3 +++ linux-2.6.22/drivers/serial/8250.c  2007-07-11 03:08:57.000000000 +0200
   4 @@ -258,6 +258,13 @@
   5                 .fcr            = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
   6                 .flags          = UART_CAP_FIFO,
   7         },
   8 +       [PORT_AR7] = {
   9 +               .name           = "TI-AR7",
  10 +               .fifo_size      = 16,
  11 +               .tx_loadsz      = 16,
  12 +               .fcr            = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_00,
  13 +               .flags          = UART_CAP_FIFO | UART_CAP_AFE,
  14 +       },
  15  };
  16
  17  #if defined (CONFIG_SERIAL_8250_AU1X00)
  18 @@ -2436,7 +2443,7 @@
  19  {
  20         struct uart_8250_port *up = (struct uart_8250_port *)port;
  21
  22 -       wait_for_xmitr(up, UART_LSR_THRE);
  23 +       wait_for_xmitr(up, BOTH_EMPTY);
  24         serial_out(up, UART_TX, ch);
  25  }
  26
  27 diff -urN linux-2.6.22.orig/include/linux/serial_core.h linux-2.6.22/include/linux/serial_core.h
  28 --- linux-2.6.22.orig/include/linux/serial_core.h       2007-07-09 01:32:17.000000000 +0200
  29 +++ linux-2.6.22/include/linux/serial_core.h    2007-07-11 03:09:49.000000000 +0200
  30 @@ -40,6 +40,7 @@
  31  #define PORT_NS16550A  14
  32  #define PORT_XSCALE    15
  33  #define PORT_RM9000    16      /* PMC-Sierra RM9xxx internal UART */
  34 +#define PORT_AR7       16
  35  #define PORT_MAX_8250  16      /* max port ID */
  36
  37  /*
  38 diff -urN linux-2.6.22.orig/include/linux/serialP.h linux-2.6.22/include/linux/serialP.h
  39 --- linux-2.6.22.orig/include/linux/serialP.h   2007-07-09 01:32:17.000000000 +0200
  40 +++ linux-2.6.22/include/linux/serialP.h        2007-07-11 03:08:57.000000000 +0200
  41 @@ -135,6 +135,10 @@
  42   * the interrupt line _up_ instead of down, so if we register the IRQ
  43   * while the UART is in that state, we die in an IRQ storm. */
  44  #define ALPHA_KLUDGE_MCR (UART_MCR_OUT2)
  45 +#elif defined(CONFIG_AR7)
  46 +/* This is how it is set up by bootloader... */
  47 +#define ALPHA_KLUDGE_MCR (UART_MCR_OUT2 | UART_MCR_OUT1 \
  48 +                       | UART_MCR_RTS | UART_MCR_DTR)
  49  #else
  50  #define ALPHA_KLUDGE_MCR 0
  51  #endif