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serial_cs: MD55x support (PCMCIA GPRS/EDGE modem) (kernel 2.6.33)

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Many PCMCIA GPRS modems like: Onda Edge N100E, Novaway PC98 (OEM SPC98Z),
Rovermate Edgus Adaptmate-039 and others have same construction and
identification:

lspcmcia -vvv
Product Name:   Generic Modem: MD55x 1.00 Serial number: xxxxx-xxx
Identification: manf_id: 0x015d card_id: 0x4c45
                function: 2 (serial)
                prod_id(1): "Generic" (0xc49e4731)
                prod_id(2): "Modem: MD55x" (0x8913b110)
                prod_id(3): "1.00" (0x83dbf271)
                prod_id(4): "Serial number: xxxxx-xxx" (0x73ee9514)

Serial connection to GSM module based on Elan VPU16551 PCMCIA UART with
datasheet recommeded 14.7456MHz crystal oscillator.

By default serial_cs set UART clock == 1843200 Hz
For correct work need set clock 14745600 Hz.
This quirk already present in driver, only need add device in quirk list.

Signed-off-by: Timur Maximov <xcom.org@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This commit is contained in:
Timur Maximov 2010-04-14 19:06:57 +04:00 committed by Dominik Brodowski
parent a8408c17d0
commit 6f4567c8cf
1 changed files with 9 additions and 0 deletions
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9
drivers/serial/serial_cs.c
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@ -105,6 +105,10 @@ struct serial_cfg_mem {
* manfid 0x0160, 0x0104
* This card appears to have a 14.7456MHz clock.
*/
/* Generic Modem: MD55x (GPRS/EDGE) have
* Elan VPU16551 UART with 14.7456MHz oscillator
* manfid 0x015D, 0x4C45
*/
static void quirk_setup_brainboxes_0104(struct pcmcia_device *link, struct uart_port *port)
{
port->uartclk = 14745600;
@ -195,6 +199,11 @@ static const struct serial_quirk quirks[] = {
.prodid = 0x0104,
.multi = -1,
.setup = quirk_setup_brainboxes_0104,
}, {
.manfid = 0x015D,
.prodid = 0x4C45,
.multi = -1,
.setup = quirk_setup_brainboxes_0104,
}, {
.manfid = MANFID_IBM,
.prodid = ~0,