/*
* Driver for the built-in ethernet switch of the Atheros AR7240 SoC
* Copyright (c) 2010 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (c) 2010 Felix Fietkau <nbd@openwrt.org>
+ * Copyright (c) 2010 Felix Fietkau <nbd@nbd.name>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published
#define AR7240_FLOOD_MASK_BROAD_TO_CPU BIT(26)
#define AR7240_REG_GLOBAL_CTRL 0x30
-#define AR7240_GLOBAL_CTRL_MTU_M BITM(12)
+#define AR7240_GLOBAL_CTRL_MTU_M BITM(11)
+#define AR9340_GLOBAL_CTRL_MTU_M BITM(14)
#define AR7240_REG_VTU 0x0040
#define AR7240_VTU_OP BITM(3)
#define AR7240_MIB_AT_HALF_EN BIT(16)
#define AR7240_MIB_BUSY BIT(17)
#define AR7240_MIB_FUNC_S 24
+#define AR7240_MIB_FUNC_M BITM(3)
#define AR7240_MIB_FUNC_NO_OP 0x0
#define AR7240_MIB_FUNC_FLUSH 0x1
#define AR7240_MIB_FUNC_CAPTURE 0x3
#define AR934X_REG_OPER_MODE1 0x08
#define AR934X_REG_OPER_MODE1_PHY4_MII_EN BIT(28)
+#define AR934X_REG_FLOOD_MASK 0x2c
+#define AR934X_FLOOD_MASK_MC_DP(_p) BIT(16 + (_p))
+#define AR934X_FLOOD_MASK_BC_DP(_p) BIT(25 + (_p))
+
+#define AR934X_REG_QM_CTRL 0x3c
+#define AR934X_QM_CTRL_ARP_EN BIT(15)
+
+#define AR934X_REG_AT_CTRL 0x5c
+#define AR934X_AT_CTRL_AGE_TIME BITS(0, 15)
+#define AR934X_AT_CTRL_AGE_EN BIT(17)
+#define AR934X_AT_CTRL_LEARN_CHANGE BIT(18)
+
+#define AR934X_MIB_ENABLE BIT(30)
+
#define AR934X_REG_PORT_BASE(_port) (0x100 + (_port) * 0x100)
#define AR934X_REG_PORT_VLAN1(_port) (AR934X_REG_PORT_BASE((_port)) + 0x08)
if ((t & mask) == val)
return 0;
- msleep(1);
+ usleep_range(1000, 2000);
}
return -ETIMEDOUT;
write_lock(&as->stats_lock);
/* Capture the hardware statistics for all ports */
- ar7240sw_reg_write(mii, AR7240_REG_MIB_FUNCTION0,
- (AR7240_MIB_FUNC_CAPTURE << AR7240_MIB_FUNC_S));
+ ar7240sw_reg_rmw(mii, AR7240_REG_MIB_FUNCTION0,
+ (AR7240_MIB_FUNC_M << AR7240_MIB_FUNC_S),
+ (AR7240_MIB_FUNC_CAPTURE << AR7240_MIB_FUNC_S));
/* Wait for the capturing to complete. */
ret = ar7240sw_reg_wait(mii, AR7240_REG_MIB_FUNCTION0,
/* Setup TAG priority mapping */
ar7240sw_reg_write(mii, AR7240_REG_TAG_PRIORITY, 0xfa50);
- /* Enable ARP frame acknowledge, aging, MAC replacing */
- ar7240sw_reg_write(mii, AR7240_REG_AT_CTRL,
- AR7240_AT_CTRL_RESERVED |
- 0x2b /* 5 min age time */ |
- AR7240_AT_CTRL_AGE_EN |
- AR7240_AT_CTRL_ARP_EN |
- AR7240_AT_CTRL_LEARN_CHANGE);
-
- /* Enable Broadcast frames transmitted to the CPU */
- ar7240sw_reg_set(mii, AR7240_REG_FLOOD_MASK,
- AR7240_FLOOD_MASK_BROAD_TO_CPU);
+ if (sw_is_ar934x(as)) {
+ /* Enable aging, MAC replacing */
+ ar7240sw_reg_write(mii, AR934X_REG_AT_CTRL,
+ 0x2b /* 5 min age time */ |
+ AR934X_AT_CTRL_AGE_EN |
+ AR934X_AT_CTRL_LEARN_CHANGE);
+ /* Enable ARP frame acknowledge */
+ ar7240sw_reg_set(mii, AR934X_REG_QM_CTRL,
+ AR934X_QM_CTRL_ARP_EN);
+ /* Enable Broadcast/Multicast frames transmitted to the CPU */
+ ar7240sw_reg_set(mii, AR934X_REG_FLOOD_MASK,
+ AR934X_FLOOD_MASK_BC_DP(0) |
+ AR934X_FLOOD_MASK_MC_DP(0));
+
+ /* setup MTU */
+ ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL,
+ AR9340_GLOBAL_CTRL_MTU_M,
+ AR9340_GLOBAL_CTRL_MTU_M);
+
+ /* Enable MIB counters */
+ ar7240sw_reg_set(mii, AR7240_REG_MIB_FUNCTION0,
+ AR934X_MIB_ENABLE);
- /* setup MTU */
- ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL, AR7240_GLOBAL_CTRL_MTU_M,
- 1536);
+ } else {
+ /* Enable ARP frame acknowledge, aging, MAC replacing */
+ ar7240sw_reg_write(mii, AR7240_REG_AT_CTRL,
+ AR7240_AT_CTRL_RESERVED |
+ 0x2b /* 5 min age time */ |
+ AR7240_AT_CTRL_AGE_EN |
+ AR7240_AT_CTRL_ARP_EN |
+ AR7240_AT_CTRL_LEARN_CHANGE);
+ /* Enable Broadcast frames transmitted to the CPU */
+ ar7240sw_reg_set(mii, AR7240_REG_FLOOD_MASK,
+ AR7240_FLOOD_MASK_BROAD_TO_CPU);
+
+ /* setup MTU */
+ ar7240sw_reg_rmw(mii, AR7240_REG_GLOBAL_CTRL,
+ AR7240_GLOBAL_CTRL_MTU_M,
+ AR7240_GLOBAL_CTRL_MTU_M);
+ }
/* setup Service TAG */
ar7240sw_reg_rmw(mii, AR7240_REG_SERVICE_TAG, AR7240_SERVICE_TAG_M, 0);
}
+/* inspired by phy_poll_reset in drivers/net/phy/phy_device.c */
+static int
+ar7240sw_phy_poll_reset(struct mii_bus *bus)
+{
+ const unsigned int sleep_msecs = 20;
+ int ret, elapsed, i;
+
+ for (elapsed = sleep_msecs; elapsed <= 600;
+ elapsed += sleep_msecs) {
+ msleep(sleep_msecs);
+ for (i = 0; i < AR7240_NUM_PHYS; i++) {
+ ret = ar7240sw_phy_read(bus, i, MII_BMCR);
+ if (ret < 0)
+ return ret;
+ if (ret & BMCR_RESET)
+ break;
+ if (i == AR7240_NUM_PHYS - 1) {
+ usleep_range(1000, 2000);
+ return 0;
+ }
+ }
+ }
+ return -ETIMEDOUT;
+}
+
static int ar7240sw_reset(struct ar7240sw *as)
{
struct mii_bus *mii = as->mii_bus;
ar7240sw_disable_port(as, i);
/* Wait for transmit queues to drain. */
- msleep(2);
+ usleep_range(2000, 3000);
/* Reset the switch. */
ar7240sw_reg_write(mii, AR7240_REG_MASK_CTRL,
ret = ar7240sw_reg_wait(mii, AR7240_REG_MASK_CTRL,
AR7240_MASK_CTRL_SOFT_RESET, 0, 1000);
+ /* setup PHYs */
+ for (i = 0; i < AR7240_NUM_PHYS; i++) {
+ ar7240sw_phy_write(mii, i, MII_ADVERTISE,
+ ADVERTISE_ALL | ADVERTISE_PAUSE_CAP |
+ ADVERTISE_PAUSE_ASYM);
+ ar7240sw_phy_write(mii, i, MII_BMCR,
+ BMCR_RESET | BMCR_ANENABLE);
+ }
+ ret = ar7240sw_phy_poll_reset(mii);
+ if (ret)
+ return ret;
+
ar7240sw_setup(as);
return ret;
}
return 0;
}
-static const char *
-ar7240_speed_str(u32 status)
-{
- u32 speed;
-
- speed = (status >> AR7240_PORT_STATUS_SPEED_S) &
- AR7240_PORT_STATUS_SPEED_M;
- switch (speed) {
- case AR7240_PORT_STATUS_SPEED_10:
- return "10baseT";
- case AR7240_PORT_STATUS_SPEED_100:
- return "100baseT";
- case AR7240_PORT_STATUS_SPEED_1000:
- return "1000baseT";
- }
-
- return "unknown";
-}
-
-static int
-ar7240_port_get_link(struct switch_dev *dev, const struct switch_attr *attr,
- struct switch_val *val)
-{
- struct ar7240sw *as = sw_to_ar7240(dev);
- struct mii_bus *mii = as->mii_bus;
- u32 len;
- u32 status;
- int port;
-
- port = val->port_vlan;
-
- memset(as->buf, '\0', sizeof(as->buf));
- status = ar7240sw_reg_read(mii, AR7240_REG_PORT_STATUS(port));
-
- if (status & AR7240_PORT_STATUS_LINK_UP) {
- len = snprintf(as->buf, sizeof(as->buf),
- "port:%d link:up speed:%s %s-duplex %s%s%s",
- port,
- ar7240_speed_str(status),
- (status & AR7240_PORT_STATUS_DUPLEX) ?
- "full" : "half",
- (status & AR7240_PORT_STATUS_TXFLOW) ?
- "txflow ": "",
- (status & AR7240_PORT_STATUS_RXFLOW) ?
- "rxflow " : "",
- (status & AR7240_PORT_STATUS_LINK_AUTO) ?
- "auto ": "");
- } else {
- len = snprintf(as->buf, sizeof(as->buf),
- "port:%d link:down", port);
- }
-
- val->value.s = as->buf;
- val->len = len;
-
- return 0;
-}
-
static void
ar7240_vtu_op(struct ar7240sw *as, u32 op, u32 val)
{
return -EINVAL;
status = ar7240sw_reg_read(mii, AR7240_REG_PORT_STATUS(port));
-
- link->link = !!(status & AR7240_PORT_STATUS_LINK_UP);
link->aneg = !!(status & AR7240_PORT_STATUS_LINK_AUTO);
+ if (link->aneg) {
+ link->link = !!(status & AR7240_PORT_STATUS_LINK_UP);
+ if (!link->link)
+ return 0;
+ } else {
+ link->link = true;
+ }
+
link->duplex = !!(status & AR7240_PORT_STATUS_DUPLEX);
link->tx_flow = !!(status & AR7240_PORT_STATUS_TXFLOW);
link->rx_flow = !!(status & AR7240_PORT_STATUS_RXFLOW);
};
static struct switch_attr ar7240_port[] = {
- {
- .type = SWITCH_TYPE_STRING,
- .name = "link",
- .description = "Get port link information",
- .max = 1,
- .set = NULL,
- .get = ar7240_port_get_link,
- },
};
static struct switch_attr ar7240_vlan[] = {
if ((phy_id1 != AR7240_PHY_ID1 || phy_id2 != AR7240_PHY_ID2) &&
(phy_id1 != AR934X_PHY_ID1 || phy_id2 != AR934X_PHY_ID2)) {
pr_err("%s: unknown phy id '%04x:%04x'\n",
- ag->dev->name, phy_id1, phy_id2);
+ dev_name(&mii->dev), phy_id1, phy_id2);
return NULL;
}
if (sw_is_ar7240(as)) {
swdev->name = "AR7240/AR9330 built-in switch";
+ swdev->ports = AR7240_NUM_PORTS - 1;
} else if (sw_is_ar934x(as)) {
swdev->name = "AR934X built-in switch";
AR934X_OPER_MODE0_PHY_MII_EN);
} else {
pr_err("%s: invalid PHY interface mode\n",
- ag->dev->name);
+ dev_name(&mii->dev));
goto err_free;
}
- if (as->swdata->phy4_mii_en)
+ if (as->swdata->phy4_mii_en) {
ar7240sw_reg_set(mii, AR934X_REG_OPER_MODE1,
AR934X_REG_OPER_MODE1_PHY4_MII_EN);
+ swdev->ports = AR7240_NUM_PORTS - 1;
+ } else {
+ swdev->ports = AR7240_NUM_PORTS;
+ }
} else {
pr_err("%s: unsupported chip, ctrl=%08x\n",
- ag->dev->name, ctrl);
+ dev_name(&mii->dev), ctrl);
goto err_free;
}
- swdev->ports = AR7240_NUM_PORTS - 1;
swdev->cpu_port = AR7240_PORT_CPU;
swdev->vlans = AR7240_MAX_VLANS;
swdev->ops = &ar7240_ops;
if (register_switch(&as->swdev, ag->dev) < 0)
goto err_free;
- pr_info("%s: Found an %s\n", ag->dev->name, swdev->name);
+ pr_info("%s: Found an %s\n", dev_name(&mii->dev), swdev->name);
/* initialize defaults */
for (i = 0; i < AR7240_MAX_VLANS; i++)
static void link_function(struct work_struct *work) {
struct ag71xx *ag = container_of(work, struct ag71xx, link_work.work);
+ struct ar7240sw *as = ag->phy_priv;
unsigned long flags;
+ u8 mask;
int i;
int status = 0;
- for (i = 0; i < 4; i++) {
- int link = ar7240sw_phy_read(ag->mii_bus, i, MII_BMSR);
- if(link & BMSR_LSTATUS) {
+ mask = ~as->swdata->phy_poll_mask;
+ for (i = 0; i < AR7240_NUM_PHYS; i++) {
+ int link;
+
+ if (!(mask & BIT(i)))
+ continue;
+
+ link = ar7240sw_phy_read(ag->mii_bus, i, MII_BMSR);
+ if (link & BMSR_LSTATUS) {
status = 1;
break;
}
}
spin_lock_irqsave(&ag->lock, flags);
- if(status != ag->link) {
+ if (status != ag->link) {
ag->link = status;
ag71xx_link_adjust(ag);
}
cancel_delayed_work_sync(&ag->link_work);
}
-int __devinit ag71xx_ar7240_init(struct ag71xx *ag)
+int ag71xx_ar7240_init(struct ag71xx *ag)
{
struct ar7240sw *as;