diff options
| author | Helge Deller <deller@parisc-linux.org> | 2006-03-27 12:52:15 -0700 |
|---|---|---|
| committer | Kyle McMartin <kyle@hera.kernel.org> | 2006-03-30 17:48:42 +0000 |
| commit | 5076c15862644edb91d2e3436b2fa3e07b28385d (patch) | |
| tree | 179750a6a7649c8cf233509c26da144764894ded /drivers/serial/mux.c | |
| parent | 94c3e87a792c70d041954b0ef68ebd22368d0931 (diff) | |
| download | lwn-5076c15862644edb91d2e3436b2fa3e07b28385d.tar.gz lwn-5076c15862644edb91d2e3436b2fa3e07b28385d.zip | |
[PARISC] I/O-Space must be ioremap_nocache()'d
Addresses in F-space must be accessed uncached on most parisc machines.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Diffstat (limited to 'drivers/serial/mux.c')
| -rw-r--r-- | drivers/serial/mux.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/serial/mux.c b/drivers/serial/mux.c index 868eaf4a1a68..64c0e89124c9 100644 --- a/drivers/serial/mux.c +++ b/drivers/serial/mux.c @@ -51,7 +51,7 @@ #define MUX_BREAK(status) ((status & 0xF000) == 0x2000) #define MUX_NR 256 -static unsigned int port_cnt = 0; +static unsigned int port_cnt __read_mostly; static struct uart_port mux_ports[MUX_NR]; static struct uart_driver mux_driver = { @@ -461,7 +461,7 @@ static int __init mux_probe(struct parisc_device *dev) port->iobase = 0; port->mapbase = dev->hpa.start + MUX_OFFSET + (i * MUX_LINE_OFFSET); - port->membase = ioremap(port->mapbase, MUX_LINE_OFFSET); + port->membase = ioremap_nocache(port->mapbase, MUX_LINE_OFFSET); port->iotype = UPIO_MEM; port->type = PORT_MUX; port->irq = NO_IRQ; |