On 01/03/19 14:27, Andrejs Cainikovs wrote:
> As per Linux kernel DT binding doc:
> - phy-reset-post-delay : Post reset delay in milliseconds. If present then
> a delay of phy-reset-post-delay milliseconds will be observed after the
> phy-reset-gpios has been toggled. Can be omitted thus no delay is
> observed. Delay is in range of 1ms to 1000ms. Other delays are invalid.
>
> Signed-off-by: Andrejs Cainikovs <andrejs.cainik...@netmodule.com>
> ---
> drivers/net/fec_mxc.c | 11 +++++++++++
> drivers/net/fec_mxc.h | 1 +
> 2 files changed, 12 insertions(+)
>
> diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
> index a14fe43a5b..7fc95fa767 100644
> --- a/drivers/net/fec_mxc.c
> +++ b/drivers/net/fec_mxc.c
> @@ -1315,6 +1315,8 @@ static void fec_gpio_reset(struct fec_priv *priv)
> dm_gpio_set_value(&priv->phy_reset_gpio, 1);
> mdelay(priv->reset_delay);
> dm_gpio_set_value(&priv->phy_reset_gpio, 0);
> + if (priv->reset_post_delay)
> + mdelay(priv->reset_post_delay);
> }
> }
> #endif
> @@ -1474,6 +1476,15 @@ static int fecmxc_ofdata_to_platdata(struct udevice
> *dev)
> /* property value wrong, use default value */
> priv->reset_delay = 1;
> }
> +
> + priv->reset_post_delay = dev_read_u32_default(dev,
> + "phy-reset-post-delay",
> + 0);
> + if (priv->reset_post_delay > 1000) {
> + printf("FEC MXC: phy reset post delay should be <= 1000ms\n");
> + /* property value wrong, use default value */
> + priv->reset_post_delay = 0;
> + }
> #endif
>
> return 0;
> diff --git a/drivers/net/fec_mxc.h b/drivers/net/fec_mxc.h
> index e9a661f0a1..e5f2dd75c5 100644
> --- a/drivers/net/fec_mxc.h
> +++ b/drivers/net/fec_mxc.h
> @@ -258,6 +258,7 @@ struct fec_priv {
> #ifdef CONFIG_DM_GPIO
> struct gpio_desc phy_reset_gpio;
> uint32_t reset_delay;
> + uint32_t reset_post_delay;
> #endif
> #ifdef CONFIG_DM_ETH
> u32 interface;
>
Reviewed-by: Stefano Babic <sba...@denx.de>
Best regards,
Stefano Babic
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