From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
Calao use on there dev kits a FT2232 where the port 0 is used for the JTAG and
port 1 for the UART
They use the same VID and PID as FTDI Chip but they program the manufacturer
name in the eeprom
So use this information to detect it
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
Cc: Gregory Hermant <gregory.hermant@xxxxxxxxxxxxxxxxx>
Cc: Alan Cox <alan@xxxxxxxxxxxxxxx>
Cc: stable <stable@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxx>
---
drivers/usb/serial/ftdi_sio.c | 20 +++++++++++++++++++-
1 files changed, 19 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 78a2cf9..5fc13e7 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -101,6 +101,7 @@ static int ftdi_jtag_probe(struct usb_serial *serial);
static int ftdi_mtxorb_hack_setup(struct usb_serial *serial);
static int ftdi_NDI_device_setup(struct usb_serial *serial);
static int ftdi_stmclite_probe(struct usb_serial *serial);
+static int ftdi_8u2232c_probe(struct usb_serial *serial);
static void ftdi_USB_UIRT_setup(struct ftdi_private *priv);
static void ftdi_HE_TIRA1_setup(struct ftdi_private *priv);
@@ -128,6 +129,10 @@ static struct ftdi_sio_quirk ftdi_stmclite_quirk = {
.probe = ftdi_stmclite_probe,
};
+static struct ftdi_sio_quirk ftdi_8u2232c_quirk = {
+ .probe = ftdi_8u2232c_probe,
+};
+
/*
* The 8U232AM has the same API as the sio except for:
* - it can support MUCH higher baudrates; up to:
@@ -178,7 +183,8 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_ALT_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_232RL_PID) },
- { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_8U2232C_PID) ,
+ .driver_info = (kernel_ulong_t)&ftdi_8u2232c_quirk },
{ USB_DEVICE(FTDI_VID, FTDI_4232H_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_232H_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_MICRO_CHAMELEON_PID) },
@@ -1737,6 +1743,18 @@ static int ftdi_jtag_probe(struct usb_serial *serial)
return 0;
}
+static int ftdi_8u2232c_probe(struct usb_serial *serial)
+{
+ struct usb_device *udev = serial->dev;
+
+ dbg("%s", __func__);
+
+ if (strcmp(udev->manufacturer, "CALAO Systems") == 0)
+ return ftdi_jtag_probe(serial);
+
+ return 0;
+}
+
/*
* First and second port on STMCLiteadaptors is reserved for JTAG interface
* and the forth port for pio
--
1.7.6.1
--
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