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| author | Paul Mackerras <paulus@samba.org> | 2007-11-08 14:28:14 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2007-11-08 14:28:14 +1100 |
| commit | 688016f4e2028e3c2c27e959ad001536e10ee2c5 (patch) | |
| tree | f45baa7b2c115f1297b4ad8d30b306204ef5e537 /drivers | |
| parent | 2c84b4076c0cbbc44ffea2ae1da2a801fb23f081 (diff) | |
| parent | 29273158f82020241d9a6539d6cef9cf926654c9 (diff) | |
| download | linux-3.10-688016f4e2028e3c2c27e959ad001536e10ee2c5.tar.gz linux-3.10-688016f4e2028e3c2c27e959ad001536e10ee2c5.tar.bz2 linux-3.10-688016f4e2028e3c2c27e959ad001536e10ee2c5.zip | |
Merge branch 'for-2.6.24' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into merge
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/serial/uartlite.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/serial/uartlite.c b/drivers/serial/uartlite.c index dfef83f1496..a85f2d31a68 100644 --- a/drivers/serial/uartlite.c +++ b/drivers/serial/uartlite.c @@ -329,12 +329,14 @@ static struct uart_ops ulite_ops = { static void ulite_console_wait_tx(struct uart_port *port) { int i; + u8 val; - /* wait up to 10ms for the character(s) to be sent */ - for (i = 0; i < 10000; i++) { - if (readb(port->membase + ULITE_STATUS) & ULITE_STATUS_TXEMPTY) + /* Spin waiting for TX fifo to have space available */ + for (i = 0; i < 100000; i++) { + val = readb(port->membase + ULITE_STATUS); + if ((val & ULITE_STATUS_TXFULL) == 0) break; - udelay(1); + cpu_relax(); } } |