net: mvpp2: add PPv23 version definition

This patch add PPv23 version definition.
PPv23 is new packet processor in CP115.
Everything that supported by PPv22, also supported by PPv23.
No functional changes in this stage.

Signed-off-by: Stefan Chulski <[email protected]>
Acked-by: Marcin Wojtas <[email protected]>
Reviewed-by: Russell King <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

1 files changed, 10 insertions, 5 deletions

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
index 2ad57f71e78b..7b1074741af0 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -384,7 +384,7 @@ static int mvpp2_bm_pool_create(struct device *dev, struct mvpp2 *priv,
 	if (!IS_ALIGNED(size, 16))
 		return -EINVAL;
 
-	/* PPv2.1 needs 8 bytes per buffer pointer, PPv2.2 needs 16
+	/* PPv2.1 needs 8 bytes per buffer pointer, PPv2.2 and PPv2.3 needs 16
 	 * bytes per buffer pointer
 	 */
 	if (priv->hw_version == MVPP21)
@@ -5464,7 +5464,7 @@ static void mvpp2_rx_irqs_setup(struct mvpp2_port *port)
 		return;
 	}
 
-	/* Handle the more complicated PPv2.2 case */
+	/* Handle the more complicated PPv2.2 and PPv2.3 case */
 	for (i = 0; i < port->nqvecs; i++) {
 		struct mvpp2_queue_vector *qv = port->qvecs + i;
 
@@ -5641,7 +5641,7 @@ static bool mvpp22_port_has_legacy_tx_irqs(struct device_node *port_node,
 
 /* Checks if the port dt description has the required Tx interrupts:
  * - PPv2.1: there are no such interrupts.
- * - PPv2.2:
+ * - PPv2.2 and PPv2.3:
  *   - The old DTs have: "rx-shared", "tx-cpuX" with X in [0...3]
  *   - The new ones have: "hifX" with X in [0..8]
  *
@@ -6629,7 +6629,7 @@ static void mvpp22_rx_fifo_set_hw(struct mvpp2 *priv, int port, int data_size)
 	mvpp2_write(priv, MVPP2_RX_ATTR_FIFO_SIZE_REG(port), attr_size);
 }
 
-/* Initialize TX FIFO's: the total FIFO size is 48kB on PPv2.2.
+/* Initialize TX FIFO's: the total FIFO size is 48kB on PPv2.2 and PPv2.3.
  * 4kB fixed space must be assigned for the loopback port.
  * Redistribute remaining avialable 44kB space among all active ports.
  * Guarantee minimum 32kB for 10G port and 8kB for port 1, capable of 2.5G
@@ -6686,7 +6686,7 @@ static void mvpp22_tx_fifo_set_hw(struct mvpp2 *priv, int port, int size)
 	mvpp2_write(priv, MVPP22_TX_FIFO_THRESH_REG(port), threshold);
 }
 
-/* Initialize TX FIFO's: the total FIFO size is 19kB on PPv2.2.
+/* Initialize TX FIFO's: the total FIFO size is 19kB on PPv2.2 and PPv2.3.
  * 3kB fixed space must be assigned for the loopback port.
  * Redistribute remaining avialable 16kB space among all active ports.
  * The 10G interface should use 10kB (which is maximum possible size
@@ -7057,6 +7057,11 @@ static int mvpp2_probe(struct platform_device *pdev)
 			priv->port_map |= BIT(i);
 	}
 
+	if (priv->hw_version != MVPP21) {
+		if (mvpp2_read(priv, MVPP2_VER_ID_REG) == MVPP2_VER_PP23)
+			priv->hw_version = MVPP23;
+	}
+
 	/* Initialize network controller */
 	err = mvpp2_init(pdev, priv);
 	if (err < 0) {