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authorRussell King <rmk+kernel@armlinux.org.uk>2021-02-05 10:40:09 +0000
committerJakub Kicinski <kuba@kernel.org>2021-02-06 14:35:21 -0800
commit085f1776fa03bc771876aabf086de11f3e2ce59c (patch)
tree7a29fb4a5baf9c4e34776589e1eeb4b7f8b63e95
parent46c518c8145bb23702d5b860c1bcdc7c51bdc3d4 (diff)
net: dpaa2-mac: add backplane link mode support
Add support for backplane link mode, which is, according to discussions with NXP earlier in the year, is a mode where the OS (Linux) is able to manage the PCS and Serdes itself. This commit prepares the ground work for allowing 1G fiber connections to be used with DPAA2 on the SolidRun CEX7 platforms. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-rw-r--r--drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h4
-rw-r--r--drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c5
2 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
index c3d456c45102..9b6a89709ce1 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
@@ -695,7 +695,9 @@ static inline unsigned int dpaa2_eth_rx_head_room(struct dpaa2_eth_priv *priv)
static inline bool dpaa2_eth_is_type_phy(struct dpaa2_eth_priv *priv)
{
- if (priv->mac && priv->mac->attr.link_type == DPMAC_LINK_TYPE_PHY)
+ if (priv->mac &&
+ (priv->mac->attr.link_type == DPMAC_LINK_TYPE_PHY ||
+ priv->mac->attr.link_type == DPMAC_LINK_TYPE_BACKPLANE))
return true;
return false;
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
index 3ddfb40eb5e4..ccaf7e35abeb 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c
@@ -315,8 +315,9 @@ int dpaa2_mac_connect(struct dpaa2_mac *mac)
goto err_put_node;
}
- if (mac->attr.link_type == DPMAC_LINK_TYPE_PHY &&
- mac->attr.eth_if != DPMAC_ETH_IF_RGMII) {
+ if ((mac->attr.link_type == DPMAC_LINK_TYPE_PHY &&
+ mac->attr.eth_if != DPMAC_ETH_IF_RGMII) ||
+ mac->attr.link_type == DPMAC_LINK_TYPE_BACKPLANE) {
err = dpaa2_pcs_create(mac, dpmac_node, mac->attr.id);
if (err)
goto err_put_node;