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-rw-r--r--drivers/staging/octeon/Kconfig1
-rw-r--r--drivers/staging/octeon/TODO9
-rw-r--r--drivers/staging/octeon/ethernet-mdio.c2
-rw-r--r--drivers/staging/octeon/ethernet-tx.c20
-rw-r--r--drivers/staging/octeon/ethernet.c42
-rw-r--r--drivers/staging/octeon/octeon-ethernet.h4
6 files changed, 61 insertions, 17 deletions
diff --git a/drivers/staging/octeon/Kconfig b/drivers/staging/octeon/Kconfig
index 6e1d5f8d3ec1..1e3012b9991c 100644
--- a/drivers/staging/octeon/Kconfig
+++ b/drivers/staging/octeon/Kconfig
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
config OCTEON_ETHERNET
tristate "Cavium Networks Octeon Ethernet support"
depends on CAVIUM_OCTEON_SOC && NETDEVICES
diff --git a/drivers/staging/octeon/TODO b/drivers/staging/octeon/TODO
new file mode 100644
index 000000000000..67a0a1f6b922
--- /dev/null
+++ b/drivers/staging/octeon/TODO
@@ -0,0 +1,9 @@
+This driver is functional and supports Ethernet on OCTEON+/OCTEON2/OCTEON3
+chips at least up to CN7030.
+
+TODO:
+ - general code review and clean up
+ - make driver self-contained instead of being split between staging and
+ arch/mips/cavium-octeon.
+
+Contact: Aaro Koskinen <aaro.koskinen@iki.fi>
diff --git a/drivers/staging/octeon/ethernet-mdio.c b/drivers/staging/octeon/ethernet-mdio.c
index d6248eecf123..2aee64fdaec5 100644
--- a/drivers/staging/octeon/ethernet-mdio.c
+++ b/drivers/staging/octeon/ethernet-mdio.c
@@ -163,7 +163,7 @@ int cvm_oct_phy_setup_device(struct net_device *dev)
goto no_phy;
phydev = of_phy_connect(dev, phy_node, cvm_oct_adjust_link, 0,
- PHY_INTERFACE_MODE_GMII);
+ priv->phy_mode);
of_node_put(phy_node);
if (!phydev)
diff --git a/drivers/staging/octeon/ethernet-tx.c b/drivers/staging/octeon/ethernet-tx.c
index 317c9720467c..20f513fbaa85 100644
--- a/drivers/staging/octeon/ethernet-tx.c
+++ b/drivers/staging/octeon/ethernet-tx.c
@@ -214,8 +214,10 @@ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev)
* Get the number of skbuffs in use
* by the hardware
*/
- skb_to_free = cvmx_fau_fetch_and_add32(
- priv->fau + qos * 4, MAX_SKB_TO_FREE);
+ skb_to_free =
+ cvmx_fau_fetch_and_add32(priv->fau +
+ qos * 4,
+ MAX_SKB_TO_FREE);
}
skb_to_free = cvm_oct_adjust_skb_to_free(skb_to_free,
priv->fau +
@@ -280,9 +282,9 @@ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev)
for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
struct skb_frag_struct *fs = skb_shinfo(skb)->frags + i;
- hw_buffer.s.addr = XKPHYS_TO_PHYS(
- (u64)(page_address(fs->page.p) +
- fs->page_offset));
+ hw_buffer.s.addr =
+ XKPHYS_TO_PHYS((u64)(page_address(fs->page.p) +
+ fs->page_offset));
hw_buffer.s.size = fs->size;
CVM_OCT_SKB_CB(skb)[i + 1] = hw_buffer.u64;
}
@@ -413,8 +415,8 @@ dont_put_skbuff_in_hw:
queue_type = QUEUE_HW;
}
if (USE_ASYNC_IOBDMA)
- cvmx_fau_async_fetch_and_add32(
- CVMX_SCR_SCRATCH, FAU_TOTAL_TX_TO_CLEAN, 1);
+ cvmx_fau_async_fetch_and_add32(CVMX_SCR_SCRATCH,
+ FAU_TOTAL_TX_TO_CLEAN, 1);
spin_lock_irqsave(&priv->tx_free_list[qos].lock, flags);
@@ -491,8 +493,8 @@ skip_xmit:
cvmx_scratch_write64(CVMX_SCR_SCRATCH, old_scratch);
cvmx_scratch_write64(CVMX_SCR_SCRATCH + 8, old_scratch2);
} else {
- total_to_clean = cvmx_fau_fetch_and_add32(
- FAU_TOTAL_TX_TO_CLEAN, 1);
+ total_to_clean =
+ cvmx_fau_fetch_and_add32(FAU_TOTAL_TX_TO_CLEAN, 1);
}
if (total_to_clean & 0x3ff) {
diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index ce61c5670ef6..8847a11c212f 100644
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -421,7 +421,7 @@ int cvm_oct_common_init(struct net_device *dev)
if (priv->of_node)
mac = of_get_mac_address(priv->of_node);
- if (mac)
+ if (!IS_ERR_OR_NULL(mac))
ether_addr_copy(dev->dev_addr, mac);
else
eth_hw_addr_random(dev);
@@ -653,14 +653,37 @@ static struct device_node *cvm_oct_node_for_port(struct device_node *pip,
return np;
}
-static void cvm_set_rgmii_delay(struct device_node *np, int iface, int port)
+static void cvm_set_rgmii_delay(struct octeon_ethernet *priv, int iface,
+ int port)
{
+ struct device_node *np = priv->of_node;
u32 delay_value;
+ bool rx_delay;
+ bool tx_delay;
- if (!of_property_read_u32(np, "rx-delay", &delay_value))
+ /* By default, both RX/TX delay is enabled in
+ * __cvmx_helper_rgmii_enable().
+ */
+ rx_delay = true;
+ tx_delay = true;
+
+ if (!of_property_read_u32(np, "rx-delay", &delay_value)) {
cvmx_write_csr(CVMX_ASXX_RX_CLK_SETX(port, iface), delay_value);
- if (!of_property_read_u32(np, "tx-delay", &delay_value))
+ rx_delay = delay_value > 0;
+ }
+ if (!of_property_read_u32(np, "tx-delay", &delay_value)) {
cvmx_write_csr(CVMX_ASXX_TX_CLK_SETX(port, iface), delay_value);
+ tx_delay = delay_value > 0;
+ }
+
+ if (!rx_delay && !tx_delay)
+ priv->phy_mode = PHY_INTERFACE_MODE_RGMII_ID;
+ else if (!rx_delay)
+ priv->phy_mode = PHY_INTERFACE_MODE_RGMII_RXID;
+ else if (!tx_delay)
+ priv->phy_mode = PHY_INTERFACE_MODE_RGMII_TXID;
+ else
+ priv->phy_mode = PHY_INTERFACE_MODE_RGMII;
}
static int cvm_oct_probe(struct platform_device *pdev)
@@ -825,6 +848,7 @@ static int cvm_oct_probe(struct platform_device *pdev)
priv->port = port;
priv->queue = cvmx_pko_get_base_queue(priv->port);
priv->fau = fau - cvmx_pko_get_num_queues(port) * 4;
+ priv->phy_mode = PHY_INTERFACE_MODE_NA;
for (qos = 0; qos < 16; qos++)
skb_queue_head_init(&priv->tx_free_list[qos]);
for (qos = 0; qos < cvmx_pko_get_num_queues(port);
@@ -856,6 +880,7 @@ static int cvm_oct_probe(struct platform_device *pdev)
break;
case CVMX_HELPER_INTERFACE_MODE_SGMII:
+ priv->phy_mode = PHY_INTERFACE_MODE_SGMII;
dev->netdev_ops = &cvm_oct_sgmii_netdev_ops;
strcpy(dev->name, "eth%d");
break;
@@ -865,11 +890,16 @@ static int cvm_oct_probe(struct platform_device *pdev)
strcpy(dev->name, "spi%d");
break;
- case CVMX_HELPER_INTERFACE_MODE_RGMII:
case CVMX_HELPER_INTERFACE_MODE_GMII:
+ priv->phy_mode = PHY_INTERFACE_MODE_GMII;
+ dev->netdev_ops = &cvm_oct_rgmii_netdev_ops;
+ strcpy(dev->name, "eth%d");
+ break;
+
+ case CVMX_HELPER_INTERFACE_MODE_RGMII:
dev->netdev_ops = &cvm_oct_rgmii_netdev_ops;
strcpy(dev->name, "eth%d");
- cvm_set_rgmii_delay(priv->of_node, interface,
+ cvm_set_rgmii_delay(priv, interface,
port_index);
break;
}
diff --git a/drivers/staging/octeon/octeon-ethernet.h b/drivers/staging/octeon/octeon-ethernet.h
index 4a07e7f43d12..be570d33685a 100644
--- a/drivers/staging/octeon/octeon-ethernet.h
+++ b/drivers/staging/octeon/octeon-ethernet.h
@@ -12,7 +12,7 @@
#define OCTEON_ETHERNET_H
#include <linux/of.h>
-
+#include <linux/phy.h>
#include <asm/octeon/cvmx-helper-board.h>
/**
@@ -33,6 +33,8 @@ struct octeon_ethernet {
* cvmx_helper_interface_mode_t
*/
int imode;
+ /* PHY mode */
+ phy_interface_t phy_mode;
/* List of outstanding tx buffers per queue */
struct sk_buff_head tx_free_list[16];
unsigned int last_speed;
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.