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-rw-r--r--drivers/serial/8250.c12
-rw-r--r--drivers/serial/serial_core.c1
-rw-r--r--include/linux/serial_core.h1
3 files changed, 14 insertions, 0 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 0995430e4cf1..5443fcd38355 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -299,6 +299,7 @@ static inline int map_8250_out_reg(struct uart_8250_port *up, int offset)
static unsigned int serial_in(struct uart_8250_port *up, int offset)
{
+ unsigned int tmp;
offset = map_8250_in_reg(up, offset) << up->port.regshift;
switch (up->port.iotype) {
@@ -317,6 +318,13 @@ static unsigned int serial_in(struct uart_8250_port *up, int offset)
return __raw_readl(up->port.membase + offset);
#endif
+ case UPIO_TSI:
+ if (offset == UART_IIR) {
+ tmp = readl((u32 *)(up->port.membase + UART_RX));
+ return (cpu_to_le32(tmp) >> 8) & 0xff;
+ } else
+ return readb(up->port.membase + offset);
+
default:
return inb(up->port.iobase + offset);
}
@@ -346,6 +354,10 @@ serial_out(struct uart_8250_port *up, int offset, int value)
__raw_writel(value, up->port.membase + offset);
break;
#endif
+ case UPIO_TSI:
+ if (!((offset == UART_IER) && (value & UART_IER_UUE)))
+ writeb(value, up->port.membase + offset);
+ break;
default:
outb(value, up->port.iobase + offset);
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index d5f636fbf29a..80ef7d482756 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -2036,6 +2036,7 @@ uart_report_port(struct uart_driver *drv, struct uart_port *port)
case UPIO_MEM:
case UPIO_MEM32:
case UPIO_AU:
+ case UPIO_TSI:
snprintf(address, sizeof(address),
"MMIO 0x%lx", port->mapbase);
break;
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index 058cba70818a..86501a3de2ac 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -227,6 +227,7 @@ struct uart_port {
#define UPIO_MEM (2)
#define UPIO_MEM32 (3)
#define UPIO_AU (4) /* Au1x00 type IO */
+#define UPIO_TSI (5) /* Tsi108/109 type IO */
unsigned int read_status_mask; /* driver specific */
unsigned int ignore_status_mask; /* driver specific */
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