diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-09-16 23:07:46 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-10-01 17:06:45 +0100 |
| commit | f3d106881b06a423455f95916e666acebe6503f2 (patch) | |
| tree | 586e062a4eab63813dfe539f49d5766c476eaae5 /drivers/serial | |
| parent | 20f130495c07cd01fb423c3dec7f045038118dec (diff) | |
[SERIAL] serial_cs: Add quirk for brainboxes 2-port RS232 card
Mauro Ziliani reports that this card has a higher clock rate.
Rather than tweak the 8250 driver to handle this, add a quirk to
pass the correct clock rate to the driver.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/serial_cs.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c index 704922073bbf..1267cbed52f5 100644 --- a/drivers/serial/serial_cs.c +++ b/drivers/serial/serial_cs.c @@ -85,6 +85,7 @@ struct serial_quirk { unsigned int prodid; int multi; /* 1 = multifunction, > 1 = # ports */ void (*config)(struct pcmcia_device *); + void (*setup)(struct pcmcia_device *, struct uart_port *); void (*wakeup)(struct pcmcia_device *); int (*post)(struct pcmcia_device *); }; @@ -108,6 +109,16 @@ struct serial_cfg_mem { u_char buf[256]; }; +/* + * vers_1 5.0, "Brain Boxes", "2-Port RS232 card", "r6" + * manfid 0x0160, 0x0104 + * This card appears to have a 14.7456MHz clock. + */ +static void quirk_setup_brainboxes_0104(struct pcmcia_device *link, struct uart_port *port) +{ + port->uartclk = 14745600; +} + static int quirk_post_ibm(struct pcmcia_device *link) { conf_reg_t reg = { 0, CS_READ, 0x800, 0 }; @@ -192,6 +203,11 @@ static void quirk_config_socket(struct pcmcia_device *link) static const struct serial_quirk quirks[] = { { + .manfid = 0x0160, + .prodid = 0x0104, + .multi = -1, + .setup = quirk_setup_brainboxes_0104, + }, { .manfid = MANFID_IBM, .prodid = ~0, .multi = -1, @@ -386,6 +402,10 @@ static int setup_serial(struct pcmcia_device *handle, struct serial_info * info, port.dev = &handle_to_dev(handle); if (buggy_uart) port.flags |= UPF_BUGGY_UART; + + if (info->quirk && info->quirk->setup) + info->quirk->setup(handle, &port); + line = serial8250_register_port(&port); if (line < 0) { printk(KERN_NOTICE "serial_cs: serial8250_register_port() at " |