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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2009-06-08 19:27:13 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-06-08 19:27:13 +0100
commit7698fdedcfa3cab3dd40c9b685590b23be02e267 (patch)
tree207ddae0f963174356b1a9de7fff8e48a9c1e9c1 /drivers/serial
parent2d8d24935d372175786ebefa8a2de8680831b67f (diff)
parentae5c8c83735f5fcb09b380944e4854a383006998 (diff)
Merge branch 'for-rmk' of git://git.marvell.com/orion into devel
Diffstat (limited to 'drivers/serial')
-rw-r--r--drivers/serial/8250.c15
-rw-r--r--drivers/serial/8250_gsc.c4
-rw-r--r--drivers/serial/mpc52xx_uart.c2
3 files changed, 18 insertions, 3 deletions
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index b4b39811b44..a0127e93ade 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -137,6 +137,7 @@ struct uart_8250_port {
unsigned char mcr;
unsigned char mcr_mask; /* mask of user bits */
unsigned char mcr_force; /* mask of forced bits */
+ unsigned char cur_iotype; /* Running I/O type */
/*
* Some bits in registers are cleared on a read, so they must
@@ -471,6 +472,7 @@ static void io_serial_out(struct uart_port *p, int offset, int value)
static void set_io_from_upio(struct uart_port *p)
{
+ struct uart_8250_port *up = (struct uart_8250_port *)p;
switch (p->iotype) {
case UPIO_HUB6:
p->serial_in = hub6_serial_in;
@@ -509,6 +511,8 @@ static void set_io_from_upio(struct uart_port *p)
p->serial_out = io_serial_out;
break;
}
+ /* Remember loaded iotype */
+ up->cur_iotype = p->iotype;
}
static void
@@ -1937,6 +1941,9 @@ static int serial8250_startup(struct uart_port *port)
up->capabilities = uart_config[up->port.type].flags;
up->mcr = 0;
+ if (up->port.iotype != up->cur_iotype)
+ set_io_from_upio(port);
+
if (up->port.type == PORT_16C950) {
/* Wake up and initialize UART */
up->acr = 0;
@@ -2563,6 +2570,9 @@ static void serial8250_config_port(struct uart_port *port, int flags)
if (ret < 0)
probeflags &= ~PROBE_RSA;
+ if (up->port.iotype != up->cur_iotype)
+ set_io_from_upio(port);
+
if (flags & UART_CONFIG_TYPE)
autoconfig(up, probeflags);
if (up->port.type != PORT_UNKNOWN && flags & UART_CONFIG_IRQ)
@@ -2671,6 +2681,11 @@ serial8250_register_ports(struct uart_driver *drv, struct device *dev)
{
int i;
+ for (i = 0; i < nr_uarts; i++) {
+ struct uart_8250_port *up = &serial8250_ports[i];
+ up->cur_iotype = 0xFF;
+ }
+
serial8250_isa_init_ports();
for (i = 0; i < nr_uarts; i++) {
diff --git a/drivers/serial/8250_gsc.c b/drivers/serial/8250_gsc.c
index 418b4fe9a0a..33149d982e8 100644
--- a/drivers/serial/8250_gsc.c
+++ b/drivers/serial/8250_gsc.c
@@ -39,9 +39,9 @@ static int __init serial_init_chip(struct parisc_device *dev)
*/
if (parisc_parent(dev)->id.hw_type != HPHW_IOA)
printk(KERN_INFO
- "Serial: device 0x%lx not configured.\n"
+ "Serial: device 0x%llx not configured.\n"
"Enable support for Wax, Lasi, Asp or Dino.\n",
- dev->hpa.start);
+ (unsigned long long)dev->hpa.start);
return -ENODEV;
}
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index 7f72f8ceaa6..b3feb6198d5 100644
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -988,7 +988,7 @@ mpc52xx_console_setup(struct console *co, char *options)
pr_debug("mpc52xx_console_setup co=%p, co->index=%i, options=%s\n",
co, co->index, options);
- if ((co->index < 0) || (co->index > MPC52xx_PSC_MAXNUM)) {
+ if ((co->index < 0) || (co->index >= MPC52xx_PSC_MAXNUM)) {
pr_debug("PSC%x out of range\n", co->index);
return -EINVAL;
}