net: fec: add imx8mq and imx8qm new versions support

The ENET of imx8mq and imx8qm are basically the same as imx6sx,
but they have new features support based on imx6sx, like:
- imx8mq: supports IEEE 802.3az EEE standard.
- imx8qm: supports RGMII mode delayed clock.

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/freescale/fec.h b/drivers/net/ethernet/freescale/fec.h
index 2e002e4..c1f93aa 100644 (file)
--- a/drivers/net/ethernet/freescale/fec.h
+++ b/drivers/net/ethernet/freescale/fec.h
@@ -472,6 +472,19 @@ struct bufdesc_ex {
  */
 #define FEC_QUIRK_HAS_MULTI_QUEUES     (1 << 19)
 
+/* i.MX8MQ ENET IP version add new feature to support IEEE 802.3az EEE
+ * standard. For the transmission, MAC supply two user registers to set
+ * Sleep (TS) and Wake (TW) time.
+ */
+#define FEC_QUIRK_HAS_EEE              (1 << 20)
+
+/* i.MX8QM ENET IP version add new feture to generate delayed TXC/RXC
+ * as an alternative option to make sure it works well with various PHYs.
+ * For the implementation of delayed clock, ENET takes synchronized 250MHz
+ * clocks to generate 2ns delay.
+ */
+#define FEC_QUIRK_DELAYED_CLKS_SUPPORT (1 << 21)
+
 struct bufdesc_prop {
        int qid;
        /* Address of Rx and Tx buffers */

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index e361be8..d9ba9d6 100644 (file)
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -135,6 +135,26 @@ static const struct fec_devinfo fec_imx6ul_info = {
                  FEC_QUIRK_HAS_COALESCE | FEC_QUIRK_CLEAR_SETUP_MII,
 };
 
+static const struct fec_devinfo fec_imx8mq_info = {
+       .quirks = FEC_QUIRK_ENET_MAC | FEC_QUIRK_HAS_GBIT |
+                 FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM |
+                 FEC_QUIRK_HAS_VLAN | FEC_QUIRK_HAS_AVB |
+                 FEC_QUIRK_ERR007885 | FEC_QUIRK_BUG_CAPTURE |
+                 FEC_QUIRK_HAS_RACC | FEC_QUIRK_HAS_COALESCE |
+                 FEC_QUIRK_CLEAR_SETUP_MII | FEC_QUIRK_HAS_MULTI_QUEUES |
+                 FEC_QUIRK_HAS_EEE,
+};
+
+static const struct fec_devinfo fec_imx8qm_info = {
+       .quirks = FEC_QUIRK_ENET_MAC | FEC_QUIRK_HAS_GBIT |
+                 FEC_QUIRK_HAS_BUFDESC_EX | FEC_QUIRK_HAS_CSUM |
+                 FEC_QUIRK_HAS_VLAN | FEC_QUIRK_HAS_AVB |
+                 FEC_QUIRK_ERR007885 | FEC_QUIRK_BUG_CAPTURE |
+                 FEC_QUIRK_HAS_RACC | FEC_QUIRK_HAS_COALESCE |
+                 FEC_QUIRK_CLEAR_SETUP_MII | FEC_QUIRK_HAS_MULTI_QUEUES |
+                 FEC_QUIRK_DELAYED_CLKS_SUPPORT,
+};
+
 static struct platform_device_id fec_devtype[] = {
        {
                /* keep it for coldfire */
@@ -161,6 +181,12 @@ static struct platform_device_id fec_devtype[] = {
        }, {
                .name = "imx6ul-fec",
                .driver_data = (kernel_ulong_t)&fec_imx6ul_info,
+       }, {
+               .name = "imx8mq-fec",
+               .driver_data = (kernel_ulong_t)&fec_imx8mq_info,
+       }, {
+               .name = "imx8qm-fec",
+               .driver_data = (kernel_ulong_t)&fec_imx8qm_info,
        }, {
                /* sentinel */
        }
@@ -175,6 +201,8 @@ enum imx_fec_type {
        MVF600_FEC,
        IMX6SX_FEC,
        IMX6UL_FEC,
+       IMX8MQ_FEC,
+       IMX8QM_FEC,
 };
 
 static const struct of_device_id fec_dt_ids[] = {
@@ -185,6 +213,8 @@ static const struct of_device_id fec_dt_ids[] = {
        { .compatible = "fsl,mvf600-fec", .data = &fec_devtype[MVF600_FEC], },
        { .compatible = "fsl,imx6sx-fec", .data = &fec_devtype[IMX6SX_FEC], },
        { .compatible = "fsl,imx6ul-fec", .data = &fec_devtype[IMX6UL_FEC], },
+       { .compatible = "fsl,imx8mq-fec", .data = &fec_devtype[IMX8MQ_FEC], },
+       { .compatible = "fsl,imx8qm-fec", .data = &fec_devtype[IMX8QM_FEC], },
        { /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, fec_dt_ids);