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net: dw_eth_qos: Add 64-bit addressing

Signed-off-by: Wei Liang Lim <weiliang.lim@starfivetech.com>
Wei Liang Lim 7 months ago
parent
commit
aad6f73d21
1 changed files with 15 additions and 16 deletions
  1. 15 16
      drivers/net/dwc_eth_qos.c

+ 15 - 16
drivers/net/dwc_eth_qos.c

@@ -883,6 +883,7 @@ static int eqos_start(struct udevice *dev)
 	u32 val, tx_fifo_sz, rx_fifo_sz, tqs, rqs, pbl;
 	ulong last_rx_desc;
 	ulong desc_pad;
+	ulong addr64;
 
 	debug("%s(dev=%p):\n", __func__, dev);
 
@@ -1174,25 +1175,24 @@ static int eqos_start(struct udevice *dev)
 
 	for (i = 0; i < EQOS_DESCRIPTORS_RX; i++) {
 		struct eqos_desc *rx_desc = eqos_get_desc(eqos, i, true);
-		rx_desc->des0 = (u32)(ulong)(eqos->rx_dma_buf +
-					     (i * EQOS_MAX_PACKET_SIZE));
+		addr64 = (ulong)(eqos->rx_dma_buf + (i * EQOS_MAX_PACKET_SIZE));
+		rx_desc->des0 = lower_32_bits(addr64);
+		rx_desc->des1 = upper_32_bits(addr64);
 		rx_desc->des3 = EQOS_DESC3_OWN | EQOS_DESC3_BUF1V;
 		mb();
 		eqos->config->ops->eqos_flush_desc(rx_desc);
-		eqos->config->ops->eqos_inval_buffer(eqos->rx_dma_buf +
-						(i * EQOS_MAX_PACKET_SIZE),
-						EQOS_MAX_PACKET_SIZE);
+		eqos->config->ops->eqos_inval_buffer((void*)addr64, EQOS_MAX_PACKET_SIZE);
 	}
 
-	writel(0, &eqos->dma_regs->ch0_txdesc_list_haddress);
-	writel((ulong)eqos_get_desc(eqos, 0, false),
-		&eqos->dma_regs->ch0_txdesc_list_address);
+	addr64 = (ulong)eqos_get_desc(eqos, 0, false);
+	writel(upper_32_bits(addr64), &eqos->dma_regs->ch0_txdesc_list_haddress);
+	writel(lower_32_bits(addr64), &eqos->dma_regs->ch0_txdesc_list_address);
 	writel(EQOS_DESCRIPTORS_TX - 1,
 	       &eqos->dma_regs->ch0_txdesc_ring_length);
 
-	writel(0, &eqos->dma_regs->ch0_rxdesc_list_haddress);
-	writel((ulong)eqos_get_desc(eqos, 0, true),
-		&eqos->dma_regs->ch0_rxdesc_list_address);
+	addr64 = (ulong)eqos_get_desc(eqos, 0, true);
+	writel(upper_32_bits(addr64), &eqos->dma_regs->ch0_rxdesc_list_haddress);
+	writel(lower_32_bits(addr64), &eqos->dma_regs->ch0_rxdesc_list_address);
 	writel(EQOS_DESCRIPTORS_RX - 1,
 	       &eqos->dma_regs->ch0_rxdesc_ring_length);
 
@@ -1297,8 +1297,8 @@ static int eqos_send(struct udevice *dev, void *packet, int length)
 	eqos->tx_desc_idx++;
 	eqos->tx_desc_idx %= EQOS_DESCRIPTORS_TX;
 
-	tx_desc->des0 = (ulong)eqos->tx_dma_buf;
-	tx_desc->des1 = 0;
+	tx_desc->des0 = lower_32_bits((ulong)eqos->tx_dma_buf);
+	tx_desc->des1 = upper_32_bits((ulong)eqos->tx_dma_buf);
 	tx_desc->des2 = length;
 	/*
 	 * Make sure that if HW sees the _OWN write below, it will see all the
@@ -1376,9 +1376,8 @@ static int eqos_free_pkt(struct udevice *dev, uchar *packet, int length)
 			mb();
 			eqos->config->ops->eqos_flush_desc(rx_desc);
 			eqos->config->ops->eqos_inval_buffer(packet, length);
-			rx_desc->des0 = (u32)(ulong)(eqos->rx_dma_buf +
-					     (idx * EQOS_MAX_PACKET_SIZE));
-			rx_desc->des1 = 0;
+			rx_desc->des0 = lower_32_bits((ulong)packet);
+			rx_desc->des1 = upper_32_bits((ulong)packet);
 			rx_desc->des2 = 0;
 			/*
 			 * Make sure that if HW sees the _OWN write below,