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net: systemport: Add support for SYSTEMPORT Lite 

Add supporf for the SYSTEMPORT Lite Ethernet controller, this piece of hardware
is largely based on the full-blown SYSTEMPORT and differs in the following:

- no full-blown UniMAC, instead we have the MagicPacket matching from UniMAC at
  same offset, and a GMII Interface Block (GIB) for the MAC-level stuff, since
  we are always interfaced to an Ethernet switch which is fully Ethernet compliant
  shortcuts could be made

- 16 transmit queues, whose interrupts are moved into the first Level-2 interrupt
  controller bank

- slight TDMA offset change (a register was inserted after TDMA_STATUS, *sigh*)

- 256 RX descriptors (512 words) and 256 TX descriptors (not visible)

As a consequence of these two things, update the code paths accordingly to
differentiate the full-blown from the light version.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2017-01-20 11:08:27 -08:00 committed by David S. Miller
parent 7b78be48a8
commit 44a4524c54
3 changed files with 327 additions and 79 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
Documentation/devicetree/bindings/net/brcm,systemport.txt
View File

@ -1,7 +1,10 @@
* Broadcom BCM7xxx Ethernet Systemport Controller (SYSTEMPORT)
Required properties:
- compatible: should be one of "brcm,systemport-v1.00" or "brcm,systemport"
- compatible: should be one of:
"brcm,systemport-v1.00"
"brcm,systemportlite-v1.00" or
"brcm,systemport"
- reg: address and length of the register set for the device.
- interrupts: interrupts for the device, first cell must be for the rx
interrupts, and the second cell should be for the transmit queues. An

323
drivers/net/ethernet/broadcom/bcmsysport.c
View File

@ -43,14 +43,43 @@ static inline void name##_writel(struct bcm_sysport_priv *priv, \
BCM_SYSPORT_IO_MACRO(intrl2_0, SYS_PORT_INTRL2_0_OFFSET);
BCM_SYSPORT_IO_MACRO(intrl2_1, SYS_PORT_INTRL2_1_OFFSET);
BCM_SYSPORT_IO_MACRO(umac, SYS_PORT_UMAC_OFFSET);
BCM_SYSPORT_IO_MACRO(gib, SYS_PORT_GIB_OFFSET);
BCM_SYSPORT_IO_MACRO(tdma, SYS_PORT_TDMA_OFFSET);
BCM_SYSPORT_IO_MACRO(rdma, SYS_PORT_RDMA_OFFSET);
BCM_SYSPORT_IO_MACRO(rxchk, SYS_PORT_RXCHK_OFFSET);
BCM_SYSPORT_IO_MACRO(txchk, SYS_PORT_TXCHK_OFFSET);
BCM_SYSPORT_IO_MACRO(rbuf, SYS_PORT_RBUF_OFFSET);
BCM_SYSPORT_IO_MACRO(tbuf, SYS_PORT_TBUF_OFFSET);
BCM_SYSPORT_IO_MACRO(topctrl, SYS_PORT_TOPCTRL_OFFSET);
/* On SYSTEMPORT Lite, any register after RDMA_STATUS has the exact
* same layout, except it has been moved by 4 bytes up, *sigh*
*/
static inline u32 rdma_readl(struct bcm_sysport_priv *priv, u32 off)
{
if (priv->is_lite && off >= RDMA_STATUS)
off += 4;
return __raw_readl(priv->base + SYS_PORT_RDMA_OFFSET + off);
}
static inline void rdma_writel(struct bcm_sysport_priv *priv, u32 val, u32 off)
{
if (priv->is_lite && off >= RDMA_STATUS)
off += 4;
__raw_writel(val, priv->base + SYS_PORT_RDMA_OFFSET + off);
}
static inline u32 tdma_control_bit(struct bcm_sysport_priv *priv, u32 bit)
{
if (!priv->is_lite) {
return BIT(bit);
} else {
if (bit >= ACB_ALGO)
return BIT(bit + 1);
else
return BIT(bit);
}
}
/* L2-interrupt masking/unmasking helpers, does automatic saving of the applied
* mask in a software copy to avoid CPU_MASK_STATUS reads in hot-paths.
*/
@ -143,9 +172,9 @@ static int bcm_sysport_set_tx_csum(struct net_device *dev,
priv->tsb_en = !!(wanted & (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM));
reg = tdma_readl(priv, TDMA_CONTROL);
if (priv->tsb_en)
reg |= TSB_EN;
reg |= tdma_control_bit(priv, TSB_EN);
else
reg &= ~TSB_EN;
reg &= ~tdma_control_bit(priv, TSB_EN);
tdma_writel(priv, reg, TDMA_CONTROL);
return 0;
@ -281,11 +310,35 @@ static void bcm_sysport_set_msglvl(struct net_device *dev, u32 enable)
priv->msg_enable = enable;
}
static inline bool bcm_sysport_lite_stat_valid(enum bcm_sysport_stat_type type)
{
switch (type) {
case BCM_SYSPORT_STAT_NETDEV:
case BCM_SYSPORT_STAT_RXCHK:
case BCM_SYSPORT_STAT_RBUF:
case BCM_SYSPORT_STAT_SOFT:
return true;
default:
return false;
}
}
static int bcm_sysport_get_sset_count(struct net_device *dev, int string_set)
{
struct bcm_sysport_priv *priv = netdev_priv(dev);
const struct bcm_sysport_stats *s;
unsigned int i, j;
switch (string_set) {
case ETH_SS_STATS:
return BCM_SYSPORT_STATS_LEN;
for (i = 0, j = 0; i < BCM_SYSPORT_STATS_LEN; i++) {
s = &bcm_sysport_gstrings_stats[i];
if (priv->is_lite &&
!bcm_sysport_lite_stat_valid(s->type))
continue;
j++;
}
return j;
default:
return -EOPNOTSUPP;
}
@ -294,14 +347,21 @@ static int bcm_sysport_get_sset_count(struct net_device *dev, int string_set)
static void bcm_sysport_get_strings(struct net_device *dev,
u32 stringset, u8 *data)
{
int i;
struct bcm_sysport_priv *priv = netdev_priv(dev);
const struct bcm_sysport_stats *s;
int i, j;
switch (stringset) {
case ETH_SS_STATS:
for (i = 0; i < BCM_SYSPORT_STATS_LEN; i++) {
memcpy(data + i * ETH_GSTRING_LEN,
bcm_sysport_gstrings_stats[i].stat_string,
for (i = 0, j = 0; i < BCM_SYSPORT_STATS_LEN; i++) {
s = &bcm_sysport_gstrings_stats[i];
if (priv->is_lite &&
!bcm_sysport_lite_stat_valid(s->type))
continue;
memcpy(data + j * ETH_GSTRING_LEN, s->stat_string,
ETH_GSTRING_LEN);
j++;
}
break;
default:
@ -327,6 +387,9 @@ static void bcm_sysport_update_mib_counters(struct bcm_sysport_priv *priv)
case BCM_SYSPORT_STAT_MIB_RX:
case BCM_SYSPORT_STAT_MIB_TX:
case BCM_SYSPORT_STAT_RUNT:
if (priv->is_lite)
continue;
if (s->type != BCM_SYSPORT_STAT_MIB_RX)
offset = UMAC_MIB_STAT_OFFSET;
val = umac_readl(priv, UMAC_MIB_START + j + offset);
@ -355,12 +418,12 @@ static void bcm_sysport_get_stats(struct net_device *dev,
struct ethtool_stats *stats, u64 *data)
{
struct bcm_sysport_priv *priv = netdev_priv(dev);
int i;
int i, j;
if (netif_running(dev))
bcm_sysport_update_mib_counters(priv);
for (i = 0; i < BCM_SYSPORT_STATS_LEN; i++) {
for (i = 0, j = 0; i < BCM_SYSPORT_STATS_LEN; i++) {
const struct bcm_sysport_stats *s;
char *p;
@ -370,7 +433,8 @@ static void bcm_sysport_get_stats(struct net_device *dev,
else
p = (char *)priv;
p += s->stat_offset;
data[i] = *(unsigned long *)p;
data[j] = *(unsigned long *)p;
j++;
}
}
@ -573,8 +637,14 @@ static unsigned int bcm_sysport_desc_rx(struct bcm_sysport_priv *priv,
u16 len, status;
struct bcm_rsb *rsb;
/* Determine how much we should process since last call */
p_index = rdma_readl(priv, RDMA_PROD_INDEX);
/* Determine how much we should process since last call, SYSTEMPORT Lite
* groups the producer and consumer indexes into the same 32-bit
* which we access using RDMA_CONS_INDEX
*/
if (!priv->is_lite)
p_index = rdma_readl(priv, RDMA_PROD_INDEX);
else
p_index = rdma_readl(priv, RDMA_CONS_INDEX);
p_index &= RDMA_PROD_INDEX_MASK;
if (p_index < priv->rx_c_index)
@ -791,7 +861,11 @@ static int bcm_sysport_tx_poll(struct napi_struct *napi, int budget)
if (work_done == 0) {
napi_complete(napi);
/* re-enable TX interrupt */
intrl2_1_mask_clear(ring->priv, BIT(ring->index));
if (!ring->priv->is_lite)
intrl2_1_mask_clear(ring->priv, BIT(ring->index));
else
intrl2_0_mask_clear(ring->priv, BIT(ring->index +
INTRL2_0_TDMA_MBDONE_SHIFT));
return 0;
}
@ -817,7 +891,15 @@ static int bcm_sysport_poll(struct napi_struct *napi, int budget)
priv->rx_c_index += work_done;
priv->rx_c_index &= RDMA_CONS_INDEX_MASK;
rdma_writel(priv, priv->rx_c_index, RDMA_CONS_INDEX);
/* SYSTEMPORT Lite groups the producer/consumer index, producer is
* maintained by HW, but writes to it will be ignore while RDMA
* is active
*/
if (!priv->is_lite)
rdma_writel(priv, priv->rx_c_index, RDMA_CONS_INDEX);
else
rdma_writel(priv, priv->rx_c_index << 16, RDMA_CONS_INDEX);
if (work_done < budget) {
napi_complete_done(napi, work_done);
@ -848,6 +930,8 @@ static irqreturn_t bcm_sysport_rx_isr(int irq, void *dev_id)
{
struct net_device *dev = dev_id;
struct bcm_sysport_priv *priv = netdev_priv(dev);
struct bcm_sysport_tx_ring *txr;
unsigned int ring, ring_bit;
priv->irq0_stat = intrl2_0_readl(priv, INTRL2_CPU_STATUS) &
~intrl2_0_readl(priv, INTRL2_CPU_MASK_STATUS);
@ -877,6 +961,22 @@ static irqreturn_t bcm_sysport_rx_isr(int irq, void *dev_id)
bcm_sysport_resume_from_wol(priv);
}
if (!priv->is_lite)
goto out;
for (ring = 0; ring < dev->num_tx_queues; ring++) {
ring_bit = BIT(ring + INTRL2_0_TDMA_MBDONE_SHIFT);
if (!(priv->irq0_stat & ring_bit))
continue;
txr = &priv->tx_rings[ring];
if (likely(napi_schedule_prep(&txr->napi))) {
intrl2_0_mask_set(priv, ring_bit);
__napi_schedule(&txr->napi);
}
}
out:
return IRQ_HANDLED;
}
@ -930,9 +1030,11 @@ static void bcm_sysport_poll_controller(struct net_device *dev)
bcm_sysport_rx_isr(priv->irq0, priv);
enable_irq(priv->irq0);
disable_irq(priv->irq1);
bcm_sysport_tx_isr(priv->irq1, priv);
enable_irq(priv->irq1);
if (!priv->is_lite) {
disable_irq(priv->irq1);
bcm_sysport_tx_isr(priv->irq1, priv);
enable_irq(priv->irq1);
}
}
#endif
@ -1129,6 +1231,9 @@ static void bcm_sysport_adj_link(struct net_device *dev)
priv->old_duplex = phydev->duplex;
}
if (priv->is_lite)
goto out;
switch (phydev->speed) {
case SPEED_2500:
cmd_bits = CMD_SPEED_2500;
@ -1169,8 +1274,9 @@ static void bcm_sysport_adj_link(struct net_device *dev)
reg |= cmd_bits;
umac_writel(priv, reg, UMAC_CMD);
}
phy_print_status(phydev);
out:
if (changed)
phy_print_status(phydev);
}
static int bcm_sysport_init_tx_ring(struct bcm_sysport_priv *priv,
@ -1315,9 +1421,9 @@ static inline int tdma_enable_set(struct bcm_sysport_priv *priv,
reg = tdma_readl(priv, TDMA_CONTROL);
if (enable)
reg |= TDMA_EN;
reg |= tdma_control_bit(priv, TDMA_EN);
else
reg &= ~TDMA_EN;
reg &= ~tdma_control_bit(priv, TDMA_EN);
tdma_writel(priv, reg, TDMA_CONTROL);
/* Poll for TMDA disabling completion */
@ -1342,7 +1448,7 @@ static int bcm_sysport_init_rx_ring(struct bcm_sysport_priv *priv)
int i;
/* Initialize SW view of the RX ring */
priv->num_rx_bds = NUM_RX_DESC;
priv->num_rx_bds = priv->num_rx_desc_words / WORDS_PER_DESC;
priv->rx_bds = priv->base + SYS_PORT_RDMA_OFFSET;
priv->rx_c_index = 0;
priv->rx_read_ptr = 0;
@ -1379,7 +1485,7 @@ static int bcm_sysport_init_rx_ring(struct bcm_sysport_priv *priv)
rdma_writel(priv, 0, RDMA_START_ADDR_HI);
rdma_writel(priv, 0, RDMA_START_ADDR_LO);
rdma_writel(priv, 0, RDMA_END_ADDR_HI);
rdma_writel(priv, NUM_HW_RX_DESC_WORDS - 1, RDMA_END_ADDR_LO);
rdma_writel(priv, priv->num_rx_desc_words - 1, RDMA_END_ADDR_LO);
rdma_writel(priv, 1, RDMA_MBDONE_INTR);
@ -1421,6 +1527,9 @@ static void bcm_sysport_set_rx_mode(struct net_device *dev)
struct bcm_sysport_priv *priv = netdev_priv(dev);
u32 reg;
if (priv->is_lite)
return;
reg = umac_readl(priv, UMAC_CMD);
if (dev->flags & IFF_PROMISC)
reg |= CMD_PROMISC;
@ -1438,12 +1547,21 @@ static inline void umac_enable_set(struct bcm_sysport_priv *priv,
{
u32 reg;
reg = umac_readl(priv, UMAC_CMD);
if (enable)
reg |= mask;
else
reg &= ~mask;
umac_writel(priv, reg, UMAC_CMD);
if (!priv->is_lite) {
reg = umac_readl(priv, UMAC_CMD);
if (enable)
reg |= mask;
else
reg &= ~mask;
umac_writel(priv, reg, UMAC_CMD);
} else {
reg = gib_readl(priv, GIB_CONTROL);
if (enable)
reg |= mask;
else
reg &= ~mask;
gib_writel(priv, reg, GIB_CONTROL);
}
/* UniMAC stops on a packet boundary, wait for a full-sized packet
* to be processed (1 msec).
@ -1456,6 +1574,9 @@ static inline void umac_reset(struct bcm_sysport_priv *priv)
{
u32 reg;
if (priv->is_lite)
return;
reg = umac_readl(priv, UMAC_CMD);
reg |= CMD_SW_RESET;
umac_writel(priv, reg, UMAC_CMD);
@ -1468,9 +1589,17 @@ static inline void umac_reset(struct bcm_sysport_priv *priv)
static void umac_set_hw_addr(struct bcm_sysport_priv *priv,
unsigned char *addr)
{
umac_writel(priv, (addr[0] << 24) | (addr[1] << 16) |
(addr[2] << 8) | addr[3], UMAC_MAC0);
umac_writel(priv, (addr[4] << 8) | addr[5], UMAC_MAC1);
u32 mac0 = (addr[0] << 24) | (addr[1] << 16) | (addr[2] << 8) |
addr[3];
u32 mac1 = (addr[4] << 8) | addr[5];
if (!priv->is_lite) {
umac_writel(priv, mac0, UMAC_MAC0);
umac_writel(priv, mac1, UMAC_MAC1);
} else {
gib_writel(priv, mac0, GIB_MAC0);
gib_writel(priv, mac1, GIB_MAC1);
}
}
static void topctrl_flush(struct bcm_sysport_priv *priv)
@ -1515,8 +1644,11 @@ static void bcm_sysport_netif_start(struct net_device *dev)
phy_start(dev->phydev);
/* Enable TX interrupts for the 32 TXQs */
intrl2_1_mask_clear(priv, 0xffffffff);
/* Enable TX interrupts for the TXQs */
if (!priv->is_lite)
intrl2_1_mask_clear(priv, 0xffffffff);
else
intrl2_0_mask_clear(priv, INTRL2_0_TDMA_MBDONE_MASK);
/* Last call before we start the real business */
netif_tx_start_all_queues(dev);
@ -1528,9 +1660,37 @@ static void rbuf_init(struct bcm_sysport_priv *priv)
reg = rbuf_readl(priv, RBUF_CONTROL);
reg |= RBUF_4B_ALGN | RBUF_RSB_EN;
/* Set a correct RSB format on SYSTEMPORT Lite */
if (priv->is_lite) {
reg &= ~RBUF_RSB_SWAP1;
reg |= RBUF_RSB_SWAP0;
}
rbuf_writel(priv, reg, RBUF_CONTROL);
}
static inline void bcm_sysport_mask_all_intrs(struct bcm_sysport_priv *priv)
{
intrl2_0_mask_set(priv, 0xffffffff);
intrl2_0_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR);
if (!priv->is_lite) {
intrl2_1_mask_set(priv, 0xffffffff);
intrl2_1_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR);
}
}
static inline void gib_set_pad_extension(struct bcm_sysport_priv *priv)
{
u32 __maybe_unused reg;
/* Include Broadcom tag in pad extension */
if (netdev_uses_dsa(priv->netdev)) {
reg = gib_readl(priv, GIB_CONTROL);
reg &= ~(GIB_PAD_EXTENSION_MASK << GIB_PAD_EXTENSION_SHIFT);
reg |= ENET_BRCM_TAG_LEN << GIB_PAD_EXTENSION_SHIFT;
gib_writel(priv, reg, GIB_CONTROL);
}
}
static int bcm_sysport_open(struct net_device *dev)
{
struct bcm_sysport_priv *priv = netdev_priv(dev);
@ -1551,13 +1711,20 @@ static int bcm_sysport_open(struct net_device *dev)
rbuf_init(priv);
/* Set maximum frame length */
umac_writel(priv, UMAC_MAX_MTU_SIZE, UMAC_MAX_FRAME_LEN);
if (!priv->is_lite)
umac_writel(priv, UMAC_MAX_MTU_SIZE, UMAC_MAX_FRAME_LEN);
else
gib_set_pad_extension(priv);
/* Set MAC address */
umac_set_hw_addr(priv, dev->dev_addr);
/* Read CRC forward */
priv->crc_fwd = !!(umac_readl(priv, UMAC_CMD) & CMD_CRC_FWD);
if (!priv->is_lite)
priv->crc_fwd = !!(umac_readl(priv, UMAC_CMD) & CMD_CRC_FWD);
else
priv->crc_fwd = !!(gib_readl(priv, GIB_CONTROL) &
GIB_FCS_STRIP);
phydev = of_phy_connect(dev, priv->phy_dn, bcm_sysport_adj_link,
0, priv->phy_interface);
@ -1572,12 +1739,7 @@ static int bcm_sysport_open(struct net_device *dev)
priv->old_pause = -1;
/* mask all interrupts and request them */
intrl2_0_writel(priv, 0xffffffff, INTRL2_CPU_MASK_SET);
intrl2_0_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR);
intrl2_0_writel(priv, 0, INTRL2_CPU_MASK_CLEAR);
intrl2_1_writel(priv, 0xffffffff, INTRL2_CPU_MASK_SET);
intrl2_1_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR);
intrl2_1_writel(priv, 0, INTRL2_CPU_MASK_CLEAR);
bcm_sysport_mask_all_intrs(priv);
ret = request_irq(priv->irq0, bcm_sysport_rx_isr, 0, dev->name, dev);
if (ret) {
@ -1585,10 +1747,13 @@ static int bcm_sysport_open(struct net_device *dev)
goto out_phy_disconnect;
}
ret = request_irq(priv->irq1, bcm_sysport_tx_isr, 0, dev->name, dev);
if (ret) {
netdev_err(dev, "failed to request TX interrupt\n");
goto out_free_irq0;
if (!priv->is_lite) {
ret = request_irq(priv->irq1, bcm_sysport_tx_isr, 0,
dev->name, dev);
if (ret) {
netdev_err(dev, "failed to request TX interrupt\n");
goto out_free_irq0;
}
}
/* Initialize both hardware and software ring */
@ -1635,7 +1800,8 @@ out_free_rx_ring:
out_free_tx_ring:
for (i = 0; i < dev->num_tx_queues; i++)
bcm_sysport_fini_tx_ring(priv, i);
free_irq(priv->irq1, dev);
if (!priv->is_lite)
free_irq(priv->irq1, dev);
out_free_irq0:
free_irq(priv->irq0, dev);
out_phy_disconnect:
@ -1653,10 +1819,7 @@ static void bcm_sysport_netif_stop(struct net_device *dev)
phy_stop(dev->phydev);
/* mask all interrupts */
intrl2_0_mask_set(priv, 0xffffffff);
intrl2_0_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR);
intrl2_1_mask_set(priv, 0xffffffff);
intrl2_1_writel(priv, 0xffffffff, INTRL2_CPU_CLEAR);
bcm_sysport_mask_all_intrs(priv);
}
static int bcm_sysport_stop(struct net_device *dev)
@ -1694,7 +1857,8 @@ static int bcm_sysport_stop(struct net_device *dev)
bcm_sysport_fini_rx_ring(priv);
free_irq(priv->irq0, dev);
free_irq(priv->irq1, dev);
if (!priv->is_lite)
free_irq(priv->irq1, dev);
/* Disconnect from PHY */
phy_disconnect(dev->phydev);
@ -1733,8 +1897,32 @@ static const struct net_device_ops bcm_sysport_netdev_ops = {
#define REV_FMT "v%2x.%02x"
static const struct bcm_sysport_hw_params bcm_sysport_params[] = {
[SYSTEMPORT] = {
.is_lite = false,
.num_rx_desc_words = SP_NUM_HW_RX_DESC_WORDS,
},
[SYSTEMPORT_LITE] = {
.is_lite = true,
.num_rx_desc_words = SP_LT_NUM_HW_RX_DESC_WORDS,
},
};
static const struct of_device_id bcm_sysport_of_match[] = {
{ .compatible = "brcm,systemportlite-v1.00",
.data = &bcm_sysport_params[SYSTEMPORT_LITE] },
{ .compatible = "brcm,systemport-v1.00",
.data = &bcm_sysport_params[SYSTEMPORT] },
{ .compatible = "brcm,systemport",
.data = &bcm_sysport_params[SYSTEMPORT] },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, bcm_sysport_of_match);
static int bcm_sysport_probe(struct platform_device *pdev)
{
const struct bcm_sysport_hw_params *params;
const struct of_device_id *of_id = NULL;
struct bcm_sysport_priv *priv;
struct device_node *dn;
struct net_device *dev;
@ -1745,6 +1933,12 @@ static int bcm_sysport_probe(struct platform_device *pdev)
dn = pdev->dev.of_node;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
of_id = of_match_node(bcm_sysport_of_match, dn);
if (!of_id || !of_id->data)
return -EINVAL;
/* Fairly quickly we need to know the type of adapter we have */
params = of_id->data;
/* Read the Transmit/Receive Queue properties */
if (of_property_read_u32(dn, "systemport,num-txq", &txq))
@ -1770,10 +1964,14 @@ static int bcm_sysport_probe(struct platform_device *pdev)
if (!priv->tx_rings)
return -ENOMEM;
priv->is_lite = params->is_lite;
priv->num_rx_desc_words = params->num_rx_desc_words;
priv->irq0 = platform_get_irq(pdev, 0);
priv->irq1 = platform_get_irq(pdev, 1);
if (!priv->is_lite)
priv->irq1 = platform_get_irq(pdev, 1);
priv->wol_irq = platform_get_irq(pdev, 2);
if (priv->irq0 <= 0 || priv->irq1 <= 0) {
if (priv->irq0 <= 0 || (priv->irq1 <= 0 && !priv->is_lite)) {
dev_err(&pdev->dev, "invalid interrupts\n");
ret = -EINVAL;
goto err_free_netdev;
@ -1847,8 +2045,9 @@ static int bcm_sysport_probe(struct platform_device *pdev)
priv->rev = topctrl_readl(priv, REV_CNTL) & REV_MASK;
dev_info(&pdev->dev,
"Broadcom SYSTEMPORT" REV_FMT
"Broadcom SYSTEMPORT%s" REV_FMT
" at 0x%p (irqs: %d, %d, TXQs: %d, RXQs: %d)\n",
priv->is_lite ? " Lite" : "",
(priv->rev >> 8) & 0xff, priv->rev & 0xff,
priv->base, priv->irq0, priv->irq1, txq, rxq);
@ -2044,7 +2243,10 @@ static int bcm_sysport_resume(struct device *d)
rbuf_init(priv);
/* Set maximum frame length */
umac_writel(priv, UMAC_MAX_MTU_SIZE, UMAC_MAX_FRAME_LEN);
if (!priv->is_lite)
umac_writel(priv, UMAC_MAX_MTU_SIZE, UMAC_MAX_FRAME_LEN);
else
gib_set_pad_extension(priv);
/* Set MAC address */
umac_set_hw_addr(priv, dev->dev_addr);
@ -2080,13 +2282,6 @@ out_free_tx_rings:
static SIMPLE_DEV_PM_OPS(bcm_sysport_pm_ops,
bcm_sysport_suspend, bcm_sysport_resume);
static const struct of_device_id bcm_sysport_of_match[] = {
{ .compatible = "brcm,systemport-v1.00" },
{ .compatible = "brcm,systemport" },
{ /* sentinel */ }
};
MODULE_DEVICE_TABLE(of, bcm_sysport_of_match);
static struct platform_driver bcm_sysport_driver = {
.probe = bcm_sysport_probe,
.remove = bcm_sysport_remove,

78
drivers/net/ethernet/broadcom/bcmsysport.h
View File

@ -127,6 +127,10 @@ struct bcm_rsb {
#define INTRL2_0_DESC_ALLOC_ERR (1 << 10)
#define INTRL2_0_UNEXP_PKTSIZE_ACK (1 << 11)
/* SYSTEMPORT Lite groups the TX queues interrupts on instance 0 */
#define INTRL2_0_TDMA_MBDONE_SHIFT 12
#define INTRL2_0_TDMA_MBDONE_MASK (0xffff << INTRL2_0_TDMA_MBDONE_SHIFT)
/* RXCHK offset and defines */
#define SYS_PORT_RXCHK_OFFSET 0x300
@ -176,7 +180,9 @@ struct bcm_rsb {
#define RBUF_OK_TO_SEND_MASK 0xff
#define RBUF_CRC_REPLACE (1 << 20)
#define RBUF_OK_TO_SEND_MODE (1 << 21)
#define RBUF_RSB_SWAP (1 << 22)
/* SYSTEMPORT Lite uses two bits here */
#define RBUF_RSB_SWAP0 (1 << 22)
#define RBUF_RSB_SWAP1 (1 << 23)
#define RBUF_ACPI_EN (1 << 23)
#define RBUF_PKT_RDY_THRESH 0x04
@ -247,6 +253,7 @@ struct bcm_rsb {
#define MIB_RUNT_CNT_RST (1 << 1)
#define MIB_TX_CNT_RST (1 << 2)
/* These offsets are valid for SYSTEMPORT and SYSTEMPORT Lite */
#define UMAC_MPD_CTRL 0x620
#define MPD_EN (1 << 0)
#define MSEQ_LEN_SHIFT 16
@ -258,6 +265,34 @@ struct bcm_rsb {
#define UMAC_MDF_CTRL 0x650
#define UMAC_MDF_ADDR 0x654
/* Only valid on SYSTEMPORT Lite */
#define SYS_PORT_GIB_OFFSET 0x1000
#define GIB_CONTROL 0x00
#define GIB_TX_EN (1 << 0)
#define GIB_RX_EN (1 << 1)
#define GIB_TX_FLUSH (1 << 2)
#define GIB_RX_FLUSH (1 << 3)
#define GIB_GTX_CLK_SEL_SHIFT 4
#define GIB_GTX_CLK_EXT_CLK (0 << GIB_GTX_CLK_SEL_SHIFT)
#define GIB_GTX_CLK_125MHZ (1 << GIB_GTX_CLK_SEL_SHIFT)
#define GIB_GTX_CLK_250MHZ (2 << GIB_GTX_CLK_SEL_SHIFT)
#define GIB_FCS_STRIP (1 << 6)
#define GIB_LCL_LOOP_EN (1 << 7)
#define GIB_LCL_LOOP_TXEN (1 << 8)
#define GIB_RMT_LOOP_EN (1 << 9)
#define GIB_RMT_LOOP_RXEN (1 << 10)
#define GIB_RX_PAUSE_EN (1 << 11)
#define GIB_PREAMBLE_LEN_SHIFT 12
#define GIB_PREAMBLE_LEN_MASK 0xf
#define GIB_IPG_LEN_SHIFT 16
#define GIB_IPG_LEN_MASK 0x3f
#define GIB_PAD_EXTENSION_SHIFT 22
#define GIB_PAD_EXTENSION_MASK 0x3f
#define GIB_MAC1 0x08
#define GIB_MAC0 0x0c
/* Receive DMA offset and defines */
#define SYS_PORT_RDMA_OFFSET 0x2000
@ -409,16 +444,19 @@ struct bcm_rsb {
RING_PCP_DEI_VID)
#define TDMA_CONTROL 0x600
#define TDMA_EN (1 << 0)
#define TSB_EN (1 << 1)
#define TSB_SWAP (1 << 2)
#define ACB_ALGO (1 << 3)
#define TDMA_EN 0
#define TSB_EN 1
/* Uses 2 bits on SYSTEMPORT Lite and shifts everything by 1 bit, we
* keep the SYSTEMPORT layout here and adjust with tdma_control_bit()
*/
#define TSB_SWAP 2
#define ACB_ALGO 3
#define BUF_DATA_OFFSET_SHIFT 4
#define BUF_DATA_OFFSET_MASK 0x3ff
#define VLAN_EN (1 << 14)
#define SW_BRCM_TAG (1 << 15)
#define WNC_KPT_SIZE_UPDATE (1 << 16)
#define SYNC_PKT_SIZE (1 << 17)
#define VLAN_EN 14
#define SW_BRCM_TAG 15
#define WNC_KPT_SIZE_UPDATE 16
#define SYNC_PKT_SIZE 17
#define ACH_TXDONE_DELAY_SHIFT 18
#define ACH_TXDONE_DELAY_MASK 0xff
@ -475,12 +513,12 @@ struct dma_desc {
};
/* Number of Receive hardware descriptor words */
#define NUM_HW_RX_DESC_WORDS 1024
/* Real number of usable descriptors */
#define NUM_RX_DESC (NUM_HW_RX_DESC_WORDS / WORDS_PER_DESC)
#define SP_NUM_HW_RX_DESC_WORDS 1024
#define SP_LT_NUM_HW_RX_DESC_WORDS 256
/* Internal linked-list RAM has up to 1536 entries */
#define NUM_TX_DESC 1536
/* Internal linked-list RAM size */
#define SP_NUM_TX_DESC 1536
#define SP_LT_NUM_TX_DESC 256
#define WORDS_PER_DESC (sizeof(struct dma_desc) / sizeof(u32))
@ -627,6 +665,16 @@ struct bcm_sysport_cb {
DEFINE_DMA_UNMAP_LEN(dma_len);
};
enum bcm_sysport_type {
SYSTEMPORT = 0,
SYSTEMPORT_LITE,
};
struct bcm_sysport_hw_params {
bool is_lite;
unsigned int num_rx_desc_words;
};
/* Software view of the TX ring */
struct bcm_sysport_tx_ring {
spinlock_t lock; /* Ring lock for tx reclaim/xmit */
@ -651,6 +699,8 @@ struct bcm_sysport_priv {
u32 irq0_mask;
u32 irq1_stat;
u32 irq1_mask;
bool is_lite;
unsigned int num_rx_desc_words;
struct napi_struct napi ____cacheline_aligned;
struct net_device *netdev;
struct platform_device *pdev;