drivers: net: cpsw: Enable Annexe F Time sync

Enable the Annex F Time Sync explicitly for DRA7x and AM4372.
With this enabled the L2 PTP is working.

while at that rename TS_BIT8 to TS_TTL_NONZERO

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 085ffb5..d14c8da 100644 (file)
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -248,20 +248,31 @@ struct cpsw_ss_regs {
 #define TS_131              (1<<11) /* Time Sync Dest IP Addr 131 enable */
 #define TS_130              (1<<10) /* Time Sync Dest IP Addr 130 enable */
 #define TS_129              (1<<9)  /* Time Sync Dest IP Addr 129 enable */
-#define TS_BIT8             (1<<8)  /* ts_ttl_nonzero? */
+#define TS_TTL_NONZERO      (1<<8)  /* Time Sync Time To Live Non-zero enable */
+#define TS_ANNEX_F_EN       (1<<6)  /* Time Sync Annex F enable */
 #define TS_ANNEX_D_EN       (1<<4)  /* Time Sync Annex D enable */
 #define TS_LTYPE2_EN        (1<<3)  /* Time Sync LTYPE 2 enable */
 #define TS_LTYPE1_EN        (1<<2)  /* Time Sync LTYPE 1 enable */
 #define TS_TX_EN            (1<<1)  /* Time Sync Transmit Enable */
 #define TS_RX_EN            (1<<0)  /* Time Sync Receive Enable */
 
-#define CTRL_TS_BITS \
-       (TS_320 | TS_319 | TS_132 | TS_131 | TS_130 | TS_129 | TS_BIT8 | \
-        TS_ANNEX_D_EN | TS_LTYPE1_EN)
+#define CTRL_V2_TS_BITS \
+       (TS_320 | TS_319 | TS_132 | TS_131 | TS_130 | TS_129 |\
+        TS_TTL_NONZERO  | TS_ANNEX_D_EN | TS_LTYPE1_EN)
 
-#define CTRL_ALL_TS_MASK (CTRL_TS_BITS | TS_TX_EN | TS_RX_EN)
-#define CTRL_TX_TS_BITS  (CTRL_TS_BITS | TS_TX_EN)
-#define CTRL_RX_TS_BITS  (CTRL_TS_BITS | TS_RX_EN)
+#define CTRL_V2_ALL_TS_MASK (CTRL_V2_TS_BITS | TS_TX_EN | TS_RX_EN)
+#define CTRL_V2_TX_TS_BITS  (CTRL_V2_TS_BITS | TS_TX_EN)
+#define CTRL_V2_RX_TS_BITS  (CTRL_V2_TS_BITS | TS_RX_EN)
+
+
+#define CTRL_V3_TS_BITS \
+       (TS_320 | TS_319 | TS_132 | TS_131 | TS_130 | TS_129 |\
+        TS_TTL_NONZERO | TS_ANNEX_F_EN | TS_ANNEX_D_EN |\
+        TS_LTYPE1_EN)
+
+#define CTRL_V3_ALL_TS_MASK (CTRL_V3_TS_BITS | TS_TX_EN | TS_RX_EN)
+#define CTRL_V3_TX_TS_BITS  (CTRL_V3_TS_BITS | TS_TX_EN)
+#define CTRL_V3_RX_TS_BITS  (CTRL_V3_TS_BITS | TS_RX_EN)
 
 /* Bit definitions for the CPSW2_TS_SEQ_MTYPE register */
 #define TS_SEQ_ID_OFFSET_SHIFT   (16)    /* Time Sync Sequence ID Offset */
@@ -1376,13 +1387,27 @@ static void cpsw_hwtstamp_v2(struct cpsw_priv *priv)
                slave = &priv->slaves[priv->data.active_slave];
 
        ctrl = slave_read(slave, CPSW2_CONTROL);
-       ctrl &= ~CTRL_ALL_TS_MASK;
+       switch (priv->version) {
+       case CPSW_VERSION_2:
+               ctrl &= ~CTRL_V2_ALL_TS_MASK;
 
-       if (priv->cpts->tx_enable)
-               ctrl |= CTRL_TX_TS_BITS;
+               if (priv->cpts->tx_enable)
+                       ctrl |= CTRL_V2_TX_TS_BITS;
 
-       if (priv->cpts->rx_enable)
-               ctrl |= CTRL_RX_TS_BITS;
+               if (priv->cpts->rx_enable)
+                       ctrl |= CTRL_V2_RX_TS_BITS;
+       break;
+       case CPSW_VERSION_3:
+       default:
+               ctrl &= ~CTRL_V3_ALL_TS_MASK;
+
+               if (priv->cpts->tx_enable)
+                       ctrl |= CTRL_V3_TX_TS_BITS;
+
+               if (priv->cpts->rx_enable)
+                       ctrl |= CTRL_V3_RX_TS_BITS;
+       break;
+       }
 
        mtype = (30 << TS_SEQ_ID_OFFSET_SHIFT) | EVENT_MSG_BITS;