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author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-04-19 17:17:34 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-04-19 17:17:34 +0100 |
commit | cf816ecb533ab96b883dfdc0db174598b5b5c4d2 (patch) | |
tree | 1b7705db288ae2917105e624b01fdf81e0882bf1 /drivers/serial/amba-pl011.c | |
parent | adf6d34e460387ee3e8f1e1875d52bff51212c7d (diff) | |
parent | 15f7d677ccff6f0f5de8a1ee43a792567e9f9de9 (diff) | |
download | op-kernel-dev-cf816ecb533ab96b883dfdc0db174598b5b5c4d2.zip op-kernel-dev-cf816ecb533ab96b883dfdc0db174598b5b5c4d2.tar.gz |
Merge branch 'merge-fixes' into devel
Diffstat (limited to 'drivers/serial/amba-pl011.c')
-rw-r--r-- | drivers/serial/amba-pl011.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c index 40604a0..08adc1d 100644 --- a/drivers/serial/amba-pl011.c +++ b/drivers/serial/amba-pl011.c @@ -314,6 +314,32 @@ static void pl011_break_ctl(struct uart_port *port, int break_state) spin_unlock_irqrestore(&uap->port.lock, flags); } +#ifdef CONFIG_CONSOLE_POLL +static int pl010_get_poll_char(struct uart_port *port) +{ + struct uart_amba_port *uap = (struct uart_amba_port *)port; + unsigned int status; + + do { + status = readw(uap->port.membase + UART01x_FR); + } while (status & UART01x_FR_RXFE); + + return readw(uap->port.membase + UART01x_DR); +} + +static void pl010_put_poll_char(struct uart_port *port, + unsigned char ch) +{ + struct uart_amba_port *uap = (struct uart_amba_port *)port; + + while (readw(uap->port.membase + UART01x_FR) & UART01x_FR_TXFF) + barrier(); + + writew(ch, uap->port.membase + UART01x_DR); +} + +#endif /* CONFIG_CONSOLE_POLL */ + static int pl011_startup(struct uart_port *port) { struct uart_amba_port *uap = (struct uart_amba_port *)port; @@ -572,6 +598,10 @@ static struct uart_ops amba_pl011_pops = { .request_port = pl010_request_port, .config_port = pl010_config_port, .verify_port = pl010_verify_port, +#ifdef CONFIG_CONSOLE_POLL + .poll_get_char = pl010_get_poll_char, + .poll_put_char = pl010_put_poll_char, +#endif }; static struct uart_amba_port *amba_ports[UART_NR]; |