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| author | Matt Reimer <mreimer@vpop.net> | 2005-10-28 16:25:02 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2005-10-28 16:25:02 +0100 |
| commit | d9e29649875df82828167dd45c802d942db863ba (patch) | |
| tree | 8ce0d5d46bde4a92e212aabe18a3a86f508c8fd4 /drivers/serial/pxa.c | |
| parent | 80a18573cea2e6d8e95abe4d42bfc5f97761999a (diff) | |
| download | linux-d9e29649875df82828167dd45c802d942db863ba.tar.gz linux-d9e29649875df82828167dd45c802d942db863ba.tar.bz2 linux-d9e29649875df82828167dd45c802d942db863ba.zip | |
[ARM] 3029/1: Add HWUART support for PXA 255/26x
Patch from Matt Reimer
Adds support for HWUART on PXA 255 / 26x. This patch originally came from
http://svn.rungie.com/svn/gumstix-buildroot/trunk/sources/kernel-patches/000-gumstix-hwuart.patch
and has been tweaked by me.
Signed-off-by: Matt Reimer <mreimer@vpop.net>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/serial/pxa.c')
| -rw-r--r-- | drivers/serial/pxa.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/serial/pxa.c b/drivers/serial/pxa.c index 90c2a86c421b..005f027e081a 100644 --- a/drivers/serial/pxa.c +++ b/drivers/serial/pxa.c @@ -358,6 +358,9 @@ static int serial_pxa_startup(struct uart_port *port) unsigned long flags; int retval; + if (port->line == 3) /* HWUART */ + up->mcr |= UART_MCR_AFE; + else up->mcr = 0; /* @@ -481,8 +484,10 @@ serial_pxa_set_termios(struct uart_port *port, struct termios *termios, if ((up->port.uartclk / quot) < (2400 * 16)) fcr = UART_FCR_ENABLE_FIFO | UART_FCR_PXAR1; - else + else if ((up->port.uartclk / quot) < (230400 * 16)) fcr = UART_FCR_ENABLE_FIFO | UART_FCR_PXAR8; + else + fcr = UART_FCR_ENABLE_FIFO | UART_FCR_PXAR32; /* * Ok, we're now changing the port state. Do it with @@ -772,6 +777,20 @@ static struct uart_pxa_port serial_pxa_ports[] = { .ops = &serial_pxa_pops, .line = 2, }, + }, { /* HWUART */ + .name = "HWUART", + .cken = CKEN4_HWUART, + .port = { + .type = PORT_PXA, + .iotype = UPIO_MEM, + .membase = (void *)&HWUART, + .mapbase = __PREG(HWUART), + .irq = IRQ_HWUART, + .uartclk = 921600 * 16, + .fifosize = 64, + .ops = &serial_pxa_pops, + .line = 3, + }, } }; |