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| author | Ira W. Snyder <iws@ovro.caltech.edu> | 2012-09-11 15:58:15 -0700 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2012-09-21 12:54:52 +0200 |
| commit | e21093ef6fb4cbecdf926102286dbe280ae965db (patch) | |
| tree | a26a8e0d97c2c5839902c2fa691d4d456a3d254d /drivers/net/can | |
| parent | c0d680e577ff171e7b37dbdb1b1bf5451e851f04 (diff) | |
| download | linux-e21093ef6fb4cbecdf926102286dbe280ae965db.tar.gz linux-e21093ef6fb4cbecdf926102286dbe280ae965db.tar.bz2 linux-e21093ef6fb4cbecdf926102286dbe280ae965db.zip | |
can: janz-ican3: fix support for older hardware revisions
The Revision 1.0 Janz CMOD-IO Carrier Board does not have support for
the reset registers. To support older hardware, the code is changed to
use the hardware reset register on the Janz VMOD-ICAN3 hardware itself.
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can')
| -rw-r--r-- | drivers/net/can/janz-ican3.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c index 98ee43819911..7edadee487ba 100644 --- a/drivers/net/can/janz-ican3.c +++ b/drivers/net/can/janz-ican3.c @@ -1391,7 +1391,6 @@ static irqreturn_t ican3_irq(int irq, void *dev_id) */ static int ican3_reset_module(struct ican3_dev *mod) { - u8 val = 1 << mod->num; unsigned long start; u8 runold, runnew; @@ -1405,8 +1404,7 @@ static int ican3_reset_module(struct ican3_dev *mod) runold = ioread8(mod->dpm + TARGET_RUNNING); /* reset the module */ - iowrite8(val, &mod->ctrl->reset_assert); - iowrite8(val, &mod->ctrl->reset_deassert); + iowrite8(0x00, &mod->dpmctrl->hwreset); /* wait until the module has finished resetting and is running */ start = jiffies; |