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SubjectRe: [PATCH 2/2] can: janz-ican3: fix support for older hardware revisions
On 09/12/2012 12:58 AM, Ira W. Snyder wrote:
> From: "Ira W. Snyder" <iws@ovro.caltech.edu>
>
> 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.
>
> Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu>

Applied to linux-can.

Tnx,
Marc
> ---
> 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 98ee438..7edadee 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;
>


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Pengutronix e.K. | Marc Kleine-Budde |
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