On Tue, Feb 16, 2016 at 05:29:13PM -0800, Andrey Smirnov wrote:
> Don't wait for more than one second for IP block to finish resetting. If
> the block is dead it makes more sence to continue execution in hopes
> that the rest of the processor is fine, rather than spin indefinetly
> inside of the fec_probe function
>
> Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
> ---
> drivers/net/fec_imx.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>
> diff --git a/drivers/net/fec_imx.c b/drivers/net/fec_imx.c
> index 46932fe..99bd179 100644
> --- a/drivers/net/fec_imx.c
> +++ b/drivers/net/fec_imx.c
> @@ -687,6 +687,7 @@ static int fec_probe(struct device_d *dev)
> int phy_reset;
> u32 msec = 1;
> struct resource *res;
> + u64 start;
>
> ret = dev_get_drvdata(dev, (const void **)&type);
> if (ret)
> @@ -739,9 +740,14 @@ static int fec_probe(struct device_d *dev)
> }
>
> /* Reset chip. */
> + start = get_time_ns();
> writel(FEC_ECNTRL_RESET, fec->regs + FEC_ECNTRL);
> while(readl(fec->regs + FEC_ECNTRL) & FEC_ECNTRL_RESET) {
> udelay(10);
While at it you can drop the udelay here.
Sascha
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