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Diffstat (limited to 'drivers/net/ucc_geth.c')
-rw-r--r--drivers/net/ucc_geth.c190
1 files changed, 129 insertions, 61 deletions
diff --git a/drivers/net/ucc_geth.c b/drivers/net/ucc_geth.c
index 44f8392da11..40c6eba775c 100644
--- a/drivers/net/ucc_geth.c
+++ b/drivers/net/ucc_geth.c
@@ -1,5 +1,5 @@
/*
- * Copyright (C) 2006-2007 Freescale Semicondutor, Inc. All rights reserved.
+ * Copyright (C) 2006-2009 Freescale Semicondutor, Inc. All rights reserved.
*
* Author: Shlomi Gridish <gridish@freescale.com>
* Li Yang <leoli@freescale.com>
@@ -27,6 +27,7 @@
#include <linux/mii.h>
#include <linux/phy.h>
#include <linux/workqueue.h>
+#include <linux/of_mdio.h>
#include <linux/of_platform.h>
#include <asm/uaccess.h>
@@ -270,7 +271,7 @@ static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
u8 num_entries,
u32 thread_size,
u32 thread_alignment,
- enum qe_risc_allocation risc,
+ unsigned int risc,
int skip_page_for_first_entry)
{
u32 init_enet_offset;
@@ -307,7 +308,7 @@ static int fill_init_enet_entries(struct ucc_geth_private *ugeth,
static int return_init_enet_entries(struct ucc_geth_private *ugeth,
u32 *p_start,
u8 num_entries,
- enum qe_risc_allocation risc,
+ unsigned int risc,
int skip_page_for_first_entry)
{
u32 init_enet_offset;
@@ -342,7 +343,7 @@ static int dump_init_enet_entries(struct ucc_geth_private *ugeth,
u32 __iomem *p_start,
u8 num_entries,
u32 thread_size,
- enum qe_risc_allocation risc,
+ unsigned int risc,
int skip_page_for_first_entry)
{
u32 init_enet_offset;
@@ -1409,6 +1410,9 @@ static int adjust_enet_interface(struct ucc_geth_private *ugeth)
(ugeth->phy_interface == PHY_INTERFACE_MODE_RTBI)) {
upsmr |= UCC_GETH_UPSMR_TBIM;
}
+ if ((ugeth->phy_interface == PHY_INTERFACE_MODE_SGMII))
+ upsmr |= UCC_GETH_UPSMR_SGMM;
+
out_be32(&uf_regs->upsmr, upsmr);
/* Disable autonegotiation in tbi mode, because by default it
@@ -1530,6 +1534,49 @@ static void adjust_link(struct net_device *dev)
spin_unlock_irqrestore(&ugeth->lock, flags);
}
+/* Initialize TBI PHY interface for communicating with the
+ * SERDES lynx PHY on the chip. We communicate with this PHY
+ * through the MDIO bus on each controller, treating it as a
+ * "normal" PHY at the address found in the UTBIPA register. We assume
+ * that the UTBIPA register is valid. Either the MDIO bus code will set
+ * it to a value that doesn't conflict with other PHYs on the bus, or the
+ * value doesn't matter, as there are no other PHYs on the bus.
+ */
+static void uec_configure_serdes(struct net_device *dev)
+{
+ struct ucc_geth_private *ugeth = netdev_priv(dev);
+ struct ucc_geth_info *ug_info = ugeth->ug_info;
+ struct phy_device *tbiphy;
+
+ if (!ug_info->tbi_node) {
+ dev_warn(&dev->dev, "SGMII mode requires that the device "
+ "tree specify a tbi-handle\n");
+ return;
+ }
+
+ tbiphy = of_phy_find_device(ug_info->tbi_node);
+ if (!tbiphy) {
+ dev_err(&dev->dev, "error: Could not get TBI device\n");
+ return;
+ }
+
+ /*
+ * If the link is already up, we must already be ok, and don't need to
+ * configure and reset the TBI<->SerDes link. Maybe U-Boot configured
+ * everything for us? Resetting it takes the link down and requires
+ * several seconds for it to come back.
+ */
+ if (phy_read(tbiphy, ENET_TBI_MII_SR) & TBISR_LSTATUS)
+ return;
+
+ /* Single clk mode, mii mode off(for serdes communication) */
+ phy_write(tbiphy, ENET_TBI_MII_ANA, TBIANA_SETTINGS);
+
+ phy_write(tbiphy, ENET_TBI_MII_TBICON, TBICON_CLK_SELECT);
+
+ phy_write(tbiphy, ENET_TBI_MII_CR, TBICR_SETTINGS);
+}
+
/* Configure the PHY for dev.
* returns 0 if success. -1 if failure
*/
@@ -1543,14 +1590,19 @@ static int init_phy(struct net_device *dev)
priv->oldspeed = 0;
priv->oldduplex = -1;
- phydev = phy_connect(dev, ug_info->phy_bus_id, &adjust_link, 0,
- priv->phy_interface);
+ if (!ug_info->phy_node)
+ return 0;
- if (IS_ERR(phydev)) {
+ phydev = of_phy_connect(dev, ug_info->phy_node, &adjust_link, 0,
+ priv->phy_interface);
+ if (!phydev) {
printk("%s: Could not attach to PHY\n", dev->name);
- return PTR_ERR(phydev);
+ return -ENODEV;
}
+ if (priv->phy_interface == PHY_INTERFACE_MODE_SGMII)
+ uec_configure_serdes(dev);
+
phydev->supported &= (ADVERTISED_10baseT_Half |
ADVERTISED_10baseT_Full |
ADVERTISED_100baseT_Half |
@@ -2135,6 +2187,14 @@ static int ucc_struct_init(struct ucc_geth_private *ugeth)
return -ENOMEM;
}
+ /* read the number of risc engines, update the riscTx and riscRx
+ * if there are 4 riscs in QE
+ */
+ if (qe_get_num_of_risc() == 4) {
+ ug_info->riscTx = QE_RISC_ALLOCATION_FOUR_RISCS;
+ ug_info->riscRx = QE_RISC_ALLOCATION_FOUR_RISCS;
+ }
+
ugeth->ug_regs = ioremap(uf_info->regs, sizeof(*ugeth->ug_regs));
if (!ugeth->ug_regs) {
if (netif_msg_probe(ugeth))
@@ -3217,7 +3277,7 @@ static int ucc_geth_tx(struct net_device *dev, u8 txQ)
dev->stats.tx_packets++;
/* Free the sk buffer associated with this TxBD */
- dev_kfree_skb_irq(ugeth->
+ dev_kfree_skb(ugeth->
tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]]);
ugeth->tx_skbuff[txQ][ugeth->skb_dirtytx[txQ]] = NULL;
ugeth->skb_dirtytx[txQ] =
@@ -3251,9 +3311,15 @@ static int ucc_geth_poll(struct napi_struct *napi, int budget)
for (i = 0; i < ug_info->numQueuesRx; i++)
howmany += ucc_geth_rx(ugeth, i, budget - howmany);
+ /* Tx event processing */
+ spin_lock(&ugeth->lock);
+ for (i = 0; i < ug_info->numQueuesTx; i++)
+ ucc_geth_tx(ugeth->ndev, i);
+ spin_unlock(&ugeth->lock);
+
if (howmany < budget) {
napi_complete(napi);
- setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS);
+ setbits32(ugeth->uccf->p_uccm, UCCE_RX_EVENTS | UCCE_TX_EVENTS);
}
return howmany;
@@ -3267,8 +3333,6 @@ static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
struct ucc_geth_info *ug_info;
register u32 ucce;
register u32 uccm;
- register u32 tx_mask;
- u8 i;
ugeth_vdbg("%s: IN", __func__);
@@ -3282,27 +3346,14 @@ static irqreturn_t ucc_geth_irq_handler(int irq, void *info)
out_be32(uccf->p_ucce, ucce);
/* check for receive events that require processing */
- if (ucce & UCCE_RX_EVENTS) {
+ if (ucce & (UCCE_RX_EVENTS | UCCE_TX_EVENTS)) {
if (napi_schedule_prep(&ugeth->napi)) {
- uccm &= ~UCCE_RX_EVENTS;
+ uccm &= ~(UCCE_RX_EVENTS | UCCE_TX_EVENTS);
out_be32(uccf->p_uccm, uccm);
__napi_schedule(&ugeth->napi);
}
}
- /* Tx event processing */
- if (ucce & UCCE_TX_EVENTS) {
- spin_lock(&ugeth->lock);
- tx_mask = UCC_GETH_UCCE_TXB0;
- for (i = 0; i < ug_info->numQueuesTx; i++) {
- if (ucce & tx_mask)
- ucc_geth_tx(dev, i);
- ucce &= ~tx_mask;
- tx_mask <<= 1;
- }
- spin_unlock(&ugeth->lock);
- }
-
/* Errors and other events */
if (ucce & UCCE_OTHER) {
if (ucce & UCC_GETH_UCCE_BSY)
@@ -3331,6 +3382,37 @@ static void ucc_netpoll(struct net_device *dev)
}
#endif /* CONFIG_NET_POLL_CONTROLLER */
+static int ucc_geth_set_mac_addr(struct net_device *dev, void *p)
+{
+ struct ucc_geth_private *ugeth = netdev_priv(dev);
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+
+ /*
+ * If device is not running, we will set mac addr register
+ * when opening the device.
+ */
+ if (!netif_running(dev))
+ return 0;
+
+ spin_lock_irq(&ugeth->lock);
+ init_mac_station_addr_regs(dev->dev_addr[0],
+ dev->dev_addr[1],
+ dev->dev_addr[2],
+ dev->dev_addr[3],
+ dev->dev_addr[4],
+ dev->dev_addr[5],
+ &ugeth->ug_regs->macstnaddr1,
+ &ugeth->ug_regs->macstnaddr2);
+ spin_unlock_irq(&ugeth->lock);
+
+ return 0;
+}
+
/* Called when something needs to use the ethernet device */
/* Returns 0 for success. */
static int ucc_geth_open(struct net_device *dev)
@@ -3498,6 +3580,8 @@ static phy_interface_t to_phy_interface(const char *phy_connection_type)
return PHY_INTERFACE_MODE_RGMII_RXID;
if (strcasecmp(phy_connection_type, "rtbi") == 0)
return PHY_INTERFACE_MODE_RTBI;
+ if (strcasecmp(phy_connection_type, "sgmii") == 0)
+ return PHY_INTERFACE_MODE_SGMII;
return PHY_INTERFACE_MODE_MII;
}
@@ -3507,7 +3591,7 @@ static const struct net_device_ops ucc_geth_netdev_ops = {
.ndo_stop = ucc_geth_close,
.ndo_start_xmit = ucc_geth_start_xmit,
.ndo_validate_addr = eth_validate_addr,
- .ndo_set_mac_address = eth_mac_addr,
+ .ndo_set_mac_address = ucc_geth_set_mac_addr,
.ndo_change_mtu = eth_change_mtu,
.ndo_set_multicast_list = ucc_geth_set_multi,
.ndo_tx_timeout = ucc_geth_timeout,
@@ -3520,14 +3604,12 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
{
struct device *device = &ofdev->dev;
struct device_node *np = ofdev->node;
- struct device_node *mdio;
struct net_device *dev = NULL;
struct ucc_geth_private *ugeth = NULL;
struct ucc_geth_info *ug_info;
struct resource res;
struct device_node *phy;
int err, ucc_num, max_speed = 0;
- const phandle *ph;
const u32 *fixed_link;
const unsigned int *prop;
const char *sprop;
@@ -3544,6 +3626,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
PHY_INTERFACE_MODE_RMII, PHY_INTERFACE_MODE_RGMII,
PHY_INTERFACE_MODE_GMII, PHY_INTERFACE_MODE_RGMII,
PHY_INTERFACE_MODE_TBI, PHY_INTERFACE_MODE_RTBI,
+ PHY_INTERFACE_MODE_SGMII,
};
ugeth_vdbg("%s: IN", __func__);
@@ -3627,40 +3710,16 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
ug_info->uf_info.irq = irq_of_parse_and_map(np, 0);
fixed_link = of_get_property(np, "fixed-link", NULL);
if (fixed_link) {
- snprintf(ug_info->phy_bus_id, sizeof(ug_info->phy_bus_id),
- PHY_ID_FMT, "0", fixed_link[0]);
phy = NULL;
} else {
- char bus_name[MII_BUS_ID_SIZE];
-
- ph = of_get_property(np, "phy-handle", NULL);
- phy = of_find_node_by_phandle(*ph);
-
+ phy = of_parse_phandle(np, "phy-handle", 0);
if (phy == NULL)
return -ENODEV;
-
- /* set the PHY address */
- prop = of_get_property(phy, "reg", NULL);
- if (prop == NULL)
- return -1;
-
- /* Set the bus id */
- mdio = of_get_parent(phy);
-
- if (mdio == NULL)
- return -ENODEV;
-
- err = of_address_to_resource(mdio, 0, &res);
-
- if (err) {
- of_node_put(mdio);
- return err;
- }
- fsl_pq_mdio_bus_name(bus_name, mdio);
- of_node_put(mdio);
- snprintf(ug_info->phy_bus_id, sizeof(ug_info->phy_bus_id),
- "%s:%02x", bus_name, *prop);
}
+ ug_info->phy_node = phy;
+
+ /* Find the TBI PHY node. If it's not there, we don't support SGMII */
+ ug_info->tbi_node = of_parse_phandle(np, "tbi-handle", 0);
/* get the phy interface type, or default to MII */
prop = of_get_property(np, "phy-connection-type", NULL);
@@ -3686,6 +3745,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
case PHY_INTERFACE_MODE_RGMII_TXID:
case PHY_INTERFACE_MODE_TBI:
case PHY_INTERFACE_MODE_RTBI:
+ case PHY_INTERFACE_MODE_SGMII:
max_speed = SPEED_1000;
break;
default:
@@ -3702,7 +3762,15 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
ug_info->uf_info.utfet = UCC_GETH_UTFET_GIGA_INIT;
ug_info->uf_info.utftt = UCC_GETH_UTFTT_GIGA_INIT;
ug_info->numThreadsTx = UCC_GETH_NUM_OF_THREADS_4;
- ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
+
+ /* If QE's snum number is 46 which means we need to support
+ * 4 UECs at 1000Base-T simultaneously, we need to allocate
+ * more Threads to Rx.
+ */
+ if (qe_get_num_of_snums() == 46)
+ ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_6;
+ else
+ ug_info->numThreadsRx = UCC_GETH_NUM_OF_THREADS_4;
}
if (netif_msg_probe(&debug))
@@ -3735,7 +3803,7 @@ static int ucc_geth_probe(struct of_device* ofdev, const struct of_device_id *ma
dev->netdev_ops = &ucc_geth_netdev_ops;
dev->watchdog_timeo = TX_TIMEOUT;
INIT_WORK(&ugeth->timeout_work, ucc_geth_timeout_work);
- netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, UCC_GETH_DEV_WEIGHT);
+ netif_napi_add(dev, &ugeth->napi, ucc_geth_poll, 64);
dev->mtu = 1500;
ugeth->msg_enable = netif_msg_init(debug.msg_enable, UGETH_MSG_DEFAULT);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-15 11:47:37 +0000