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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-09-01 21:47:59 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-09-05 17:02:28 +0100
commitf2eda27d1cd218f6544cd9367be47fb01c70a95d (patch)
treecbdb1ae3e2c41c7f4f4170ea51f71cbd29253bbc /drivers/serial/8250.c
parent5668545a08c80e0d9dc325bd6c79028b19227e5d (diff)
[SERIAL] 8250: serial8250_port_size() - omap ports are larger
A function to contain common code for the size of the resource we need to allocate or free. OMAP ports need 22 bytes rather than the standard 8 bytes. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/serial/8250.c')
-rw-r--r--drivers/serial/8250.c21
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 47a60960bb1..8058533f841 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -2211,7 +2211,7 @@ serial8250_set_termios(struct uart_port *port, struct ktermios *termios,
serial_outp(up, UART_EFR, efr);
}
-#ifdef CONFIG_ARCH_OMAP15XX
+#ifdef CONFIG_ARCH_OMAP
/* Workaround to enable 115200 baud on OMAP1510 internal ports */
if (cpu_is_omap1510() && is_omap_port(up)) {
if (baud == 115200) {
@@ -2266,18 +2266,27 @@ serial8250_pm(struct uart_port *port, unsigned int state,
p->pm(port, state, oldstate);
}
+static unsigned int serial8250_port_size(struct uart_8250_port *pt)
+{
+ if (pt->port.iotype == UPIO_AU)
+ return 0x100000;
+#ifdef CONFIG_ARCH_OMAP
+ if (is_omap_port(pt))
+ return 0x16 << pt->port.regshift;
+#endif
+ return 8 << pt->port.regshift;
+}
+
/*
* Resource handling.
*/
static int serial8250_request_std_resource(struct uart_8250_port *up)
{
- unsigned int size = 8 << up->port.regshift;
+ unsigned int size = serial8250_port_size(up);
int ret = 0;
switch (up->port.iotype) {
case UPIO_AU:
- size = 0x100000;
- /* fall thru */
case UPIO_TSI:
case UPIO_MEM32:
case UPIO_MEM:
@@ -2311,12 +2320,10 @@ static int serial8250_request_std_resource(struct uart_8250_port *up)
static void serial8250_release_std_resource(struct uart_8250_port *up)
{
- unsigned int size = 8 << up->port.regshift;
+ unsigned int size = serial8250_port_size(up);
switch (up->port.iotype) {
case UPIO_AU:
- size = 0x100000;
- /* fall thru */
case UPIO_TSI:
case UPIO_MEM32:
case UPIO_MEM: