**
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/tty.h>
#include <linux/ioport.h>
#define MUX_BREAK(status) ((status & 0xF000) == 0x2000)
#define MUX_NR 256
-static unsigned int port_cnt = 0;
+static unsigned int port_cnt __read_mostly;
static struct uart_port mux_ports[MUX_NR];
static struct uart_driver mux_driver = {
continue;
}
- if (uart_handle_sysrq_char(port, data & 0xffu, NULL))
+ if (uart_handle_sysrq_char(port, data & 0xffu))
continue;
tty_insert_flip_char(tty, data & 0xFF, TTY_NORMAL);
port->iobase = 0;
port->mapbase = dev->hpa.start + MUX_OFFSET +
(i * MUX_LINE_OFFSET);
- port->membase = ioremap(port->mapbase, MUX_LINE_OFFSET);
+ port->membase = ioremap_nocache(port->mapbase, MUX_LINE_OFFSET);
port->iotype = UPIO_MEM;
port->type = PORT_MUX;
port->irq = NO_IRQ;
for (i = 0; i < port_cnt; i++) {
uart_remove_one_port(&mux_driver, &mux_ports[i]);
+ if (mux_ports[i].membase)
+ iounmap(mux_ports[i].membase);
}
uart_unregister_driver(&mux_driver);