From e21093ef6fb4cbecdf926102286dbe280ae965db Mon Sep 17 00:00:00 2001 From: "Ira W. Snyder" Date: Tue, 11 Sep 2012 15:58:15 -0700 Subject: 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 Signed-off-by: Ira W. Snyder Signed-off-by: Marc Kleine-Budde --- drivers/net/can/janz-ican3.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c index 98ee4381991..7edadee487b 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; -- cgit v1.2.3