.fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10,
.flags = UART_CAP_FIFO | UART_CAP_AFE,
},
+/* tx_loadsz is set to 63-bytes instead of 64-bytes to implement
+workaround of errata A-008006 which states that tx_loadsz should be
+configured less than Maximum supported fifo bytes */
+ [PORT_16550A_FSL64] = {
+ .name = "16550A_FSL64",
+ .fifo_size = 64,
+ .tx_loadsz = 63,
+ .fcr = UART_FCR_ENABLE_FIFO | UART_FCR_R_TRIG_10 |
+ UART_FCR7_64BYTE,
+ .flags = UART_CAP_FIFO,
+ },
};
/* Uart divisor latch read */
up->port.type = PORT_16650;
up->capabilities |= UART_CAP_EFR | UART_CAP_SLEEP;
} else {
- DEBUG_AUTOCONF("Motorola 8xxx DUART ");
+ serial_out(up, UART_LCR, 0);
+ serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO |
+ UART_FCR7_64BYTE);
+ status1 = serial_in(up, UART_IIR) >> 5;
+ serial_out(up, UART_FCR, 0);
+ serial_out(up, UART_LCR, 0);
+
+ if (status1 == 7)
+ up->port.type = PORT_16550A_FSL64;
+ else
+ DEBUG_AUTOCONF("Motorola 8xxx DUART ");
}
serial_out(up, UART_EFR, 0);
return;
return ret;
}
-static void serial8250_set_mctrl(struct uart_port *port, unsigned int mctrl)
+void serial8250_do_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
struct uart_8250_port *up = up_to_u8250p(port);
unsigned char mcr = 0;
serial_port_out(port, UART_MCR, mcr);
}
+EXPORT_SYMBOL_GPL(serial8250_do_set_mctrl);
+
+static void serial8250_set_mctrl(struct uart_port *port, unsigned int mctrl)
+{
+ if (port->set_mctrl)
+ return port->set_mctrl(port, mctrl);
+ return serial8250_do_set_mctrl(port, mctrl);
+}
static void serial8250_break_ctl(struct uart_port *port, int break_state)
{
/* Possibly override set_termios call */
if (up->port.set_termios)
uart->port.set_termios = up->port.set_termios;
+ if (up->port.set_mctrl)
+ uart->port.set_mctrl = up->port.set_mctrl;
if (up->port.startup)
uart->port.startup = up->port.startup;
if (up->port.shutdown)