From: Andrejs Cainikovs Date: Fri, 1 Mar 2019 13:27:59 +0000 (+0000) Subject: net: dm: fec: Support phy-reset-post-delay property X-Git-Tag: v2019.04~2^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=31d4045d4be8263828689c7eb6ff4e72071ad5ce;p=platform%2Fkernel%2Fu-boot.git net: dm: fec: Support phy-reset-post-delay property 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 Reviewed-by: Anatolij Gustschin Reviewed-by: Stefano Babic Acked-by: Joe Hershberger Acked-by: Lukasz Majewski --- diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index f991b40..84f010d 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -1309,6 +1309,8 @@ 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 @@ -1468,6 +1470,15 @@ 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 e9a661f..e5f2dd7 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;