diff options
| author | Josh Boyer <jwboyer@linux.vnet.ibm.com> | 2007-07-23 18:43:44 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-24 12:24:58 -0700 |
| commit | 4f640efb3170dbcf99a37a3cc99060647b95428c (patch) | |
| tree | b600b237e4efc1c7dab2b362eae23e076e5ce8f9 /drivers/serial/8250_early.c | |
| parent | f695baf2df9e0413d3521661070103711545207a (diff) | |
| download | blackbird-op-linux-4f640efb3170dbcf99a37a3cc99060647b95428c.tar.gz blackbird-op-linux-4f640efb3170dbcf99a37a3cc99060647b95428c.zip | |
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.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/serial/8250_early.c b/drivers/serial/8250_early.c index 947c20507e1f..150cad5c2eba 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; } |
