summaryrefslogtreecommitdiffstats
path: root/drivers/serial/8250_early.c
diff options
context:
space:
mode:
authorJosh Boyer <jwboyer@linux.vnet.ibm.com>2007-07-23 18:43:44 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-24 12:24:58 -0700
commit4f640efb3170dbcf99a37a3cc99060647b95428c (patch)
treeb600b237e4efc1c7dab2b362eae23e076e5ce8f9 /drivers/serial/8250_early.c
parentf695baf2df9e0413d3521661070103711545207a (diff)
downloadop-kernel-dev-4f640efb3170dbcf99a37a3cc99060647b95428c.zip
op-kernel-dev-4f640efb3170dbcf99a37a3cc99060647b95428c.tar.gz
Use resource_size_t for serial port IO addresses
At present, various parts of the serial code use unsigned long to define resource addresses. This is a problem, because some 32-bit platforms have physical addresses larger than 32-bits, and have mmio serial uarts located above the 4GB point. This patch changes the type of mapbase in both struct uart_port and struct plat_serial8250_port to resource_size_t, which can be configured to be 64 bits on such platforms. The mapbase in serial_struct can't safely be changed, because that structure is user visible. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Paul Mackerras <paulus@samba.org> Cc: Jason Wessel <jason.wessel@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/serial/8250_early.c')
-rw-r--r--drivers/serial/8250_early.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/serial/8250_early.c b/drivers/serial/8250_early.c
index 947c205..150cad5 100644
--- a/drivers/serial/8250_early.c
+++ b/drivers/serial/8250_early.c
@@ -151,8 +151,9 @@ static int __init parse_options(struct early_serial8250_device *device, char *op
#else
port->membase = ioremap(port->mapbase, 64);
if (!port->membase) {
- printk(KERN_ERR "%s: Couldn't ioremap 0x%lx\n",
- __FUNCTION__, port->mapbase);
+ printk(KERN_ERR "%s: Couldn't ioremap 0x%llx\n",
+ __FUNCTION__,
+ (unsigned long long)port->mapbase);
return -ENOMEM;
}
#endif
@@ -175,9 +176,10 @@ static int __init parse_options(struct early_serial8250_device *device, char *op
device->baud);
}
- printk(KERN_INFO "Early serial console at %s 0x%lx (options '%s')\n",
+ printk(KERN_INFO "Early serial console at %s 0x%llx (options '%s')\n",
mmio ? "MMIO" : "I/O port",
- mmio ? port->mapbase : (unsigned long) port->iobase,
+ mmio ? (unsigned long long) port->mapbase
+ : (unsigned long long) port->iobase,
device->options);
return 0;
}
OpenPOWER on IntegriCloud