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Date: Tue, 23 Sep 2014 20:51:27 -0700
From: Iyappan Subramanian <isubramanian@....com>
To: davem@...emloft.net, netdev@...r.kernel.org,
devicetree@...r.kernel.org
Cc: kchudgar@....com, patches@....com,
Iyappan Subramanian <isubramanian@....com>
Subject: [PATCH v1 4/5] drivers: net: xgene: Add 10GbE support
Adding 10GbE support to APM X-Gene SoC ethernet driver.
Signed-off-by: Iyappan Subramanian <isubramanian@....com>
---
drivers/net/ethernet/apm/xgene/Makefile | 3 +-
drivers/net/ethernet/apm/xgene/xgene_enet_hw.c | 123 +++++++-------
drivers/net/ethernet/apm/xgene/xgene_enet_hw.h | 31 ++--
drivers/net/ethernet/apm/xgene/xgene_enet_main.c | 87 +++++++---
drivers/net/ethernet/apm/xgene/xgene_enet_main.h | 24 ++-
drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c | 187 ++++++++++++++++++++++
drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h | 64 ++++++++
7 files changed, 422 insertions(+), 97 deletions(-)
create mode 100644 drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c
create mode 100644 drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h
diff --git a/drivers/net/ethernet/apm/xgene/Makefile b/drivers/net/ethernet/apm/xgene/Makefile
index c643e8a..589b352 100644
--- a/drivers/net/ethernet/apm/xgene/Makefile
+++ b/drivers/net/ethernet/apm/xgene/Makefile
@@ -2,5 +2,6 @@
# Makefile for APM X-Gene Ethernet Driver.
#
-xgene-enet-objs := xgene_enet_hw.o xgene_enet_main.o xgene_enet_ethtool.o
+xgene-enet-objs := xgene_enet_hw.o xgene_enet_xgmac.o \
+ xgene_enet_main.o xgene_enet_ethtool.o
obj-$(CONFIG_NET_XGENE) += xgene-enet.o
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
index 812d8d6..2795367 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
@@ -217,8 +217,7 @@ void xgene_enet_parse_error(struct xgene_enet_desc_ring *ring,
}
}
-static void xgene_enet_wr_csr(struct xgene_enet_pdata *pdata,
- u32 offset, u32 val)
+void xgene_enet_wr_csr(struct xgene_enet_pdata *pdata, u32 offset, u32 val)
{
void __iomem *addr = pdata->eth_csr_addr + offset;
@@ -244,7 +243,7 @@ static void xgene_enet_wr_diag_csr(struct xgene_enet_pdata *pdata,
static void xgene_enet_wr_mcx_csr(struct xgene_enet_pdata *pdata,
u32 offset, u32 val)
{
- void __iomem *addr = pdata->mcx_mac_csr_addr + offset;
+ void __iomem *addr = pdata->mac_csr_addr + offset;
iowrite32(val, addr);
}
@@ -272,23 +271,21 @@ static bool xgene_enet_wr_indirect(void __iomem *addr, void __iomem *wr,
return true;
}
-static void xgene_enet_wr_mcx_mac(struct xgene_enet_pdata *pdata,
- u32 wr_addr, u32 wr_data)
+void xgene_enet_wr_mac(struct xgene_enet_pdata *pdata, u32 wr_addr, u32 wr_data)
{
void __iomem *addr, *wr, *cmd, *cmd_done;
- addr = pdata->mcx_mac_addr + MAC_ADDR_REG_OFFSET;
- wr = pdata->mcx_mac_addr + MAC_WRITE_REG_OFFSET;
- cmd = pdata->mcx_mac_addr + MAC_COMMAND_REG_OFFSET;
- cmd_done = pdata->mcx_mac_addr + MAC_COMMAND_DONE_REG_OFFSET;
+ addr = pdata->mac_addr + MAC_ADDR_REG_OFFSET;
+ wr = pdata->mac_addr + MAC_WRITE_REG_OFFSET;
+ cmd = pdata->mac_addr + MAC_COMMAND_REG_OFFSET;
+ cmd_done = pdata->mac_addr + MAC_COMMAND_DONE_REG_OFFSET;
if (!xgene_enet_wr_indirect(addr, wr, cmd, cmd_done, wr_addr, wr_data))
netdev_err(pdata->ndev, "MCX mac write failed, addr: %04x\n",
wr_addr);
}
-static void xgene_enet_rd_csr(struct xgene_enet_pdata *pdata,
- u32 offset, u32 *val)
+void xgene_enet_rd_csr(struct xgene_enet_pdata *pdata, u32 offset, u32 *val)
{
void __iomem *addr = pdata->eth_csr_addr + offset;
@@ -306,7 +303,7 @@ static void xgene_enet_rd_diag_csr(struct xgene_enet_pdata *pdata,
static void xgene_enet_rd_mcx_csr(struct xgene_enet_pdata *pdata,
u32 offset, u32 *val)
{
- void __iomem *addr = pdata->mcx_mac_csr_addr + offset;
+ void __iomem *addr = pdata->mac_csr_addr + offset;
*val = ioread32(addr);
}
@@ -334,15 +331,15 @@ static bool xgene_enet_rd_indirect(void __iomem *addr, void __iomem *rd,
return true;
}
-static void xgene_enet_rd_mcx_mac(struct xgene_enet_pdata *pdata,
- u32 rd_addr, u32 *rd_data)
+void xgene_enet_rd_mac(struct xgene_enet_pdata *pdata,
+ u32 rd_addr, u32 *rd_data)
{
void __iomem *addr, *rd, *cmd, *cmd_done;
- addr = pdata->mcx_mac_addr + MAC_ADDR_REG_OFFSET;
- rd = pdata->mcx_mac_addr + MAC_READ_REG_OFFSET;
- cmd = pdata->mcx_mac_addr + MAC_COMMAND_REG_OFFSET;
- cmd_done = pdata->mcx_mac_addr + MAC_COMMAND_DONE_REG_OFFSET;
+ addr = pdata->mac_addr + MAC_ADDR_REG_OFFSET;
+ rd = pdata->mac_addr + MAC_READ_REG_OFFSET;
+ cmd = pdata->mac_addr + MAC_COMMAND_REG_OFFSET;
+ cmd_done = pdata->mac_addr + MAC_COMMAND_DONE_REG_OFFSET;
if (!xgene_enet_rd_indirect(addr, rd, cmd, cmd_done, rd_addr, rd_data))
netdev_err(pdata->ndev, "MCX mac read failed, addr: %04x\n",
@@ -358,13 +355,13 @@ static int xgene_mii_phy_write(struct xgene_enet_pdata *pdata, int phy_id,
PHY_ADDR_SET(&addr, phy_id);
REG_ADDR_SET(&addr, reg);
- xgene_enet_wr_mcx_mac(pdata, MII_MGMT_ADDRESS_ADDR, addr);
+ xgene_enet_wr_mac(pdata, MII_MGMT_ADDRESS_ADDR, addr);
PHY_CONTROL_SET(&wr_data, data);
- xgene_enet_wr_mcx_mac(pdata, MII_MGMT_CONTROL_ADDR, wr_data);
+ xgene_enet_wr_mac(pdata, MII_MGMT_CONTROL_ADDR, wr_data);
do {
usleep_range(5, 10);
- xgene_enet_rd_mcx_mac(pdata, MII_MGMT_INDICATORS_ADDR, &done);
+ xgene_enet_rd_mac(pdata, MII_MGMT_INDICATORS_ADDR, &done);
} while ((done & BUSY_MASK) && wait--);
if (done & BUSY_MASK) {
@@ -384,11 +381,11 @@ static int xgene_mii_phy_read(struct xgene_enet_pdata *pdata,
PHY_ADDR_SET(&addr, phy_id);
REG_ADDR_SET(&addr, reg);
- xgene_enet_wr_mcx_mac(pdata, MII_MGMT_ADDRESS_ADDR, addr);
- xgene_enet_wr_mcx_mac(pdata, MII_MGMT_COMMAND_ADDR, READ_CYCLE_MASK);
+ xgene_enet_wr_mac(pdata, MII_MGMT_ADDRESS_ADDR, addr);
+ xgene_enet_wr_mac(pdata, MII_MGMT_COMMAND_ADDR, READ_CYCLE_MASK);
do {
usleep_range(5, 10);
- xgene_enet_rd_mcx_mac(pdata, MII_MGMT_INDICATORS_ADDR, &done);
+ xgene_enet_rd_mac(pdata, MII_MGMT_INDICATORS_ADDR, &done);
} while ((done & BUSY_MASK) && wait--);
if (done & BUSY_MASK) {
@@ -396,8 +393,8 @@ static int xgene_mii_phy_read(struct xgene_enet_pdata *pdata,
return -EBUSY;
}
- xgene_enet_rd_mcx_mac(pdata, MII_MGMT_STATUS_ADDR, &data);
- xgene_enet_wr_mcx_mac(pdata, MII_MGMT_COMMAND_ADDR, 0);
+ xgene_enet_rd_mac(pdata, MII_MGMT_STATUS_ADDR, &data);
+ xgene_enet_wr_mac(pdata, MII_MGMT_COMMAND_ADDR, 0);
return data;
}
@@ -412,11 +409,11 @@ void xgene_gmac_set_mac_addr(struct xgene_enet_pdata *pdata)
addr1 = (dev_addr[5] << 24) | (dev_addr[4] << 16);
addr1 |= pdata->phy_addr & 0xFFFF;
- xgene_enet_wr_mcx_mac(pdata, STATION_ADDR0_ADDR, addr0);
- xgene_enet_wr_mcx_mac(pdata, STATION_ADDR1_ADDR, addr1);
+ xgene_enet_wr_mac(pdata, STATION_ADDR0_ADDR, addr0);
+ xgene_enet_wr_mac(pdata, STATION_ADDR1_ADDR, addr1);
}
-static int xgene_enet_ecc_init(struct xgene_enet_pdata *pdata)
+int xgene_enet_ecc_init(struct xgene_enet_pdata *pdata)
{
struct net_device *ndev = pdata->ndev;
u32 data;
@@ -438,11 +435,11 @@ static int xgene_enet_ecc_init(struct xgene_enet_pdata *pdata)
void xgene_gmac_reset(struct xgene_enet_pdata *pdata)
{
- xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, SOFT_RESET1);
- xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, 0);
+ xgene_enet_wr_mac(pdata, MAC_CONFIG_1_ADDR, SOFT_RESET1);
+ xgene_enet_wr_mac(pdata, MAC_CONFIG_1_ADDR, 0);
}
-void xgene_gmac_init(struct xgene_enet_pdata *pdata, int speed)
+void xgene_gmac_init(struct xgene_enet_pdata *pdata)
{
u32 value, mc2;
u32 intf_ctl, rgmii;
@@ -452,11 +449,11 @@ void xgene_gmac_init(struct xgene_enet_pdata *pdata, int speed)
xgene_enet_rd_mcx_csr(pdata, ICM_CONFIG0_REG_0_ADDR, &icm0);
xgene_enet_rd_mcx_csr(pdata, ICM_CONFIG2_REG_0_ADDR, &icm2);
- xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_2_ADDR, &mc2);
- xgene_enet_rd_mcx_mac(pdata, INTERFACE_CONTROL_ADDR, &intf_ctl);
+ xgene_enet_rd_mac(pdata, MAC_CONFIG_2_ADDR, &mc2);
+ xgene_enet_rd_mac(pdata, INTERFACE_CONTROL_ADDR, &intf_ctl);
xgene_enet_rd_csr(pdata, RGMII_REG_0_ADDR, &rgmii);
- switch (speed) {
+ switch (pdata->phy_speed) {
case SPEED_10:
ENET_INTERFACE_MODE2_SET(&mc2, 1);
CFG_MACMODE_SET(&icm0, 0);
@@ -481,15 +478,15 @@ void xgene_gmac_init(struct xgene_enet_pdata *pdata, int speed)
}
mc2 |= FULL_DUPLEX2;
- xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_2_ADDR, mc2);
- xgene_enet_wr_mcx_mac(pdata, INTERFACE_CONTROL_ADDR, intf_ctl);
+ xgene_enet_wr_mac(pdata, MAC_CONFIG_2_ADDR, mc2);
+ xgene_enet_wr_mac(pdata, INTERFACE_CONTROL_ADDR, intf_ctl);
xgene_gmac_set_mac_addr(pdata);
/* Adjust MDC clock frequency */
- xgene_enet_rd_mcx_mac(pdata, MII_MGMT_CONFIG_ADDR, &value);
+ xgene_enet_rd_mac(pdata, MII_MGMT_CONFIG_ADDR, &value);
MGMT_CLOCK_SEL_SET(&value, 7);
- xgene_enet_wr_mcx_mac(pdata, MII_MGMT_CONFIG_ADDR, value);
+ xgene_enet_wr_mac(pdata, MII_MGMT_CONFIG_ADDR, value);
/* Enable drop if bufpool not available */
xgene_enet_rd_csr(pdata, RSIF_CONFIG_REG_ADDR, &value);
@@ -515,10 +512,8 @@ void xgene_gmac_init(struct xgene_enet_pdata *pdata, int speed)
xgene_enet_wr_csr(pdata, CFG_BYPASS_ADDR, RESUME_TX);
}
-static void xgene_enet_config_ring_if_assoc(struct xgene_enet_pdata *pdata)
+void xgene_enet_config_ring_if_assoc(struct xgene_enet_pdata *pdata, u32 val)
{
- u32 val = 0xffffffff;
-
xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIWQASSOC_ADDR, val);
xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIFPQASSOC_ADDR, val);
xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIQMLITEWQASSOC_ADDR, val);
@@ -548,32 +543,32 @@ void xgene_gmac_rx_enable(struct xgene_enet_pdata *pdata)
{
u32 data;
- xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_1_ADDR, &data);
- xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data | RX_EN);
+ xgene_enet_rd_mac(pdata, MAC_CONFIG_1_ADDR, &data);
+ xgene_enet_wr_mac(pdata, MAC_CONFIG_1_ADDR, data | RX_EN);
}
void xgene_gmac_tx_enable(struct xgene_enet_pdata *pdata)
{
u32 data;
- xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_1_ADDR, &data);
- xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data | TX_EN);
+ xgene_enet_rd_mac(pdata, MAC_CONFIG_1_ADDR, &data);
+ xgene_enet_wr_mac(pdata, MAC_CONFIG_1_ADDR, data | TX_EN);
}
void xgene_gmac_rx_disable(struct xgene_enet_pdata *pdata)
{
u32 data;
- xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_1_ADDR, &data);
- xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data & ~RX_EN);
+ xgene_enet_rd_mac(pdata, MAC_CONFIG_1_ADDR, &data);
+ xgene_enet_wr_mac(pdata, MAC_CONFIG_1_ADDR, data & ~RX_EN);
}
void xgene_gmac_tx_disable(struct xgene_enet_pdata *pdata)
{
u32 data;
- xgene_enet_rd_mcx_mac(pdata, MAC_CONFIG_1_ADDR, &data);
- xgene_enet_wr_mcx_mac(pdata, MAC_CONFIG_1_ADDR, data & ~TX_EN);
+ xgene_enet_rd_mac(pdata, MAC_CONFIG_1_ADDR, &data);
+ xgene_enet_wr_mac(pdata, MAC_CONFIG_1_ADDR, data & ~TX_EN);
}
void xgene_enet_reset(struct xgene_enet_pdata *pdata)
@@ -584,16 +579,16 @@ void xgene_enet_reset(struct xgene_enet_pdata *pdata)
clk_disable_unprepare(pdata->clk);
clk_prepare_enable(pdata->clk);
xgene_enet_ecc_init(pdata);
- xgene_enet_config_ring_if_assoc(pdata);
+ xgene_enet_config_ring_if_assoc(pdata, 0xffffffff);
/* Enable auto-incr for scanning */
- xgene_enet_rd_mcx_mac(pdata, MII_MGMT_CONFIG_ADDR, &val);
+ xgene_enet_rd_mac(pdata, MII_MGMT_CONFIG_ADDR, &val);
val |= SCAN_AUTO_INCR;
MGMT_CLOCK_SEL_SET(&val, 1);
- xgene_enet_wr_mcx_mac(pdata, MII_MGMT_CONFIG_ADDR, val);
+ xgene_enet_wr_mac(pdata, MII_MGMT_CONFIG_ADDR, val);
}
-void xgene_gport_shutdown(struct xgene_enet_pdata *pdata)
+void xgene_enet_shutdown(struct xgene_enet_pdata *pdata)
{
clk_disable_unprepare(pdata->clk);
}
@@ -627,10 +622,10 @@ static void xgene_enet_adjust_link(struct net_device *ndev)
if (phydev->link) {
if (pdata->phy_speed != phydev->speed) {
- xgene_gmac_init(pdata, phydev->speed);
+ pdata->phy_speed = phydev->speed;
+ xgene_gmac_init(pdata);
xgene_gmac_rx_enable(pdata);
xgene_gmac_tx_enable(pdata);
- pdata->phy_speed = phydev->speed;
phy_print_status(phydev);
}
} else {
@@ -726,3 +721,19 @@ void xgene_enet_mdio_remove(struct xgene_enet_pdata *pdata)
mdiobus_free(pdata->mdio_bus);
pdata->mdio_bus = NULL;
}
+
+struct xgene_mac_ops xgene_gmac_ops = {
+ .init = xgene_gmac_init,
+ .reset = xgene_gmac_reset,
+ .rx_enable = xgene_gmac_rx_enable,
+ .tx_enable = xgene_gmac_tx_enable,
+ .rx_disable = xgene_gmac_rx_disable,
+ .tx_disable = xgene_gmac_tx_disable,
+ .set_mac_addr = xgene_gmac_set_mac_addr,
+};
+
+struct xgene_port_ops xgene_gport_ops = {
+ .reset = xgene_enet_reset,
+ .cle_bypass = xgene_enet_cle_bypass,
+ .shutdown = xgene_enet_shutdown,
+};
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
index 371e7a5..1187de0 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.h
@@ -42,6 +42,11 @@ static inline u32 xgene_get_bits(u32 val, u32 start, u32 end)
return (val & GENMASK(end, start)) >> start;
}
+enum xgene_enet_ring_manager {
+ RM0,
+ RM3 = 3
+};
+
#define CSR_RING_ID 0x0008
#define OVERWRITE BIT(31)
#define IS_BUFFER_POOL BIT(20)
@@ -52,7 +57,6 @@ static inline u32 xgene_get_bits(u32 val, u32 start, u32 end)
#define CSR_RING_WR_BASE 0x0070
#define NUM_RING_CONFIG 5
#define BUFPOOL_MODE 3
-#define RM3 3
#define INC_DEC_CMD_ADDR 0x002c
#define UDP_HDR_SIZE 2
#define BUF_LEN_CODE_2K 0x5000
@@ -318,20 +322,21 @@ void xgene_enet_parse_error(struct xgene_enet_desc_ring *ring,
struct xgene_enet_pdata *pdata,
enum xgene_enet_err_code status);
-void xgene_enet_reset(struct xgene_enet_pdata *priv);
-void xgene_gmac_reset(struct xgene_enet_pdata *priv);
-void xgene_gmac_init(struct xgene_enet_pdata *priv, int speed);
-void xgene_gmac_tx_enable(struct xgene_enet_pdata *priv);
-void xgene_gmac_rx_enable(struct xgene_enet_pdata *priv);
-void xgene_gmac_tx_disable(struct xgene_enet_pdata *priv);
-void xgene_gmac_rx_disable(struct xgene_enet_pdata *priv);
-void xgene_gmac_set_mac_addr(struct xgene_enet_pdata *pdata);
-void xgene_enet_cle_bypass(struct xgene_enet_pdata *pdata,
- u32 dst_ring_num, u16 bufpool_id);
-void xgene_gport_shutdown(struct xgene_enet_pdata *priv);
-void xgene_gmac_get_tx_stats(struct xgene_enet_pdata *pdata);
+void xgene_enet_wr_csr(struct xgene_enet_pdata *pdata,
+ u32 offset, u32 val);
+void xgene_enet_rd_csr(struct xgene_enet_pdata *pdata,
+ u32 offset, u32 *val);
+void xgene_enet_wr_mac(struct xgene_enet_pdata *pdata,
+ u32 wr_addr, u32 wr_data);
+void xgene_enet_rd_mac(struct xgene_enet_pdata *pdata,
+ u32 rd_addr, u32 *rd_data);
+int xgene_enet_ecc_init(struct xgene_enet_pdata *pdata);
+void xgene_enet_config_ring_if_assoc(struct xgene_enet_pdata *pdata, u32 val);
int xgene_enet_mdio_config(struct xgene_enet_pdata *pdata);
void xgene_enet_mdio_remove(struct xgene_enet_pdata *pdata);
+extern struct xgene_mac_ops xgene_gmac_ops;
+extern struct xgene_port_ops xgene_gport_ops;
+
#endif /* __XGENE_ENET_HW_H__ */
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
index e4222af..090bbcd 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c
@@ -21,6 +21,7 @@
#include "xgene_enet_main.h"
#include "xgene_enet_hw.h"
+#include "xgene_enet_xgmac.h"
static void xgene_enet_init_bufpool(struct xgene_enet_desc_ring *buf_pool)
{
@@ -390,7 +391,7 @@ static int xgene_enet_process_ring(struct xgene_enet_desc_ring *ring,
}
}
- return budget;
+ return count;
}
static int xgene_enet_napi(struct napi_struct *napi, const int budget)
@@ -413,7 +414,7 @@ static void xgene_enet_timeout(struct net_device *ndev)
{
struct xgene_enet_pdata *pdata = netdev_priv(ndev);
- xgene_gmac_reset(pdata);
+ pdata->mac_ops->reset(pdata);
}
static int xgene_enet_register_irq(struct net_device *ndev)
@@ -445,18 +446,21 @@ static void xgene_enet_free_irq(struct net_device *ndev)
static int xgene_enet_open(struct net_device *ndev)
{
struct xgene_enet_pdata *pdata = netdev_priv(ndev);
+ struct xgene_mac_ops *mac_ops = pdata->mac_ops;
int ret;
- xgene_gmac_tx_enable(pdata);
- xgene_gmac_rx_enable(pdata);
+ mac_ops->tx_enable(pdata);
+ mac_ops->rx_enable(pdata);
ret = xgene_enet_register_irq(ndev);
if (ret)
return ret;
napi_enable(&pdata->rx_ring->napi);
- if (pdata->phy_dev)
+ if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII)
phy_start(pdata->phy_dev);
+ else
+ schedule_delayed_work(&pdata->link_work, PHY_POLL_LINK_OFF);
netif_start_queue(ndev);
@@ -466,18 +470,21 @@ static int xgene_enet_open(struct net_device *ndev)
static int xgene_enet_close(struct net_device *ndev)
{
struct xgene_enet_pdata *pdata = netdev_priv(ndev);
+ struct xgene_mac_ops *mac_ops = pdata->mac_ops;
netif_stop_queue(ndev);
- if (pdata->phy_dev)
+ if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII)
phy_stop(pdata->phy_dev);
+ else
+ cancel_delayed_work_sync(&pdata->link_work);
napi_disable(&pdata->rx_ring->napi);
xgene_enet_free_irq(ndev);
xgene_enet_process_ring(pdata->rx_ring, -1);
- xgene_gmac_tx_disable(pdata);
- xgene_gmac_rx_disable(pdata);
+ mac_ops->tx_disable(pdata);
+ mac_ops->rx_disable(pdata);
return 0;
}
@@ -613,7 +620,6 @@ static struct xgene_enet_desc_ring *xgene_enet_create_desc_ring(
ring->cmd_base = pdata->ring_cmd_addr + (ring->num << 6);
ring->cmd = ring->cmd_base + INC_DEC_CMD_ADDR;
- pdata->rm = RM3;
ring = xgene_enet_setup_ring(ring);
netdev_dbg(ndev, "ring info: num=%d size=%d id=%d slots=%d\n",
ring->num, ring->size, ring->id, ring->slots);
@@ -724,7 +730,7 @@ static int xgene_enet_set_mac_address(struct net_device *ndev, void *addr)
ret = eth_mac_addr(ndev, addr);
if (ret)
return ret;
- xgene_gmac_set_mac_addr(pdata);
+ pdata->mac_ops->set_mac_addr(pdata);
return ret;
}
@@ -803,8 +809,13 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
pdata->phy_mode = of_get_phy_mode(pdev->dev.of_node);
if (pdata->phy_mode < 0) {
- dev_err(dev, "Incorrect phy-connection-type in DTS\n");
- return -EINVAL;
+ dev_err(dev, "Unable to get phy-connection-type\n");
+ return pdata->phy_mode;
+ }
+ if (pdata->phy_mode != PHY_INTERFACE_MODE_RGMII &&
+ pdata->phy_mode != PHY_INTERFACE_MODE_XGMII) {
+ dev_err(dev, "Incorrect phy-connection-type specified\n");
+ return -ENODEV;
}
pdata->clk = devm_clk_get(&pdev->dev, NULL);
@@ -819,12 +830,19 @@ static int xgene_enet_get_resources(struct xgene_enet_pdata *pdata)
pdata->eth_csr_addr = base_addr + BLOCK_ETH_CSR_OFFSET;
pdata->eth_ring_if_addr = base_addr + BLOCK_ETH_RING_IF_OFFSET;
pdata->eth_diag_csr_addr = base_addr + BLOCK_ETH_DIAG_CSR_OFFSET;
- pdata->mcx_mac_addr = base_addr + BLOCK_ETH_MAC_OFFSET;
- pdata->mcx_stats_addr = base_addr + BLOCK_ETH_STATS_OFFSET;
- pdata->mcx_mac_csr_addr = base_addr + BLOCK_ETH_MAC_CSR_OFFSET;
pdata->rx_buff_cnt = NUM_PKT_BUF;
- return ret;
+ if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII) {
+ pdata->mac_addr = base_addr + BLOCK_ETH_MAC_OFFSET;
+ pdata->mac_csr_addr = base_addr + BLOCK_ETH_MAC_CSR_OFFSET;
+ pdata->rm = RM3;
+ } else {
+ pdata->mac_addr = base_addr + BLOCK_AXG_MAC_OFFSET;
+ pdata->mac_csr_addr = base_addr + BLOCK_AXG_MAC_CSR_OFFSET;
+ pdata->rm = RM0;
+ }
+
+ return 0;
}
static int xgene_enet_init_hw(struct xgene_enet_pdata *pdata)
@@ -834,8 +852,7 @@ static int xgene_enet_init_hw(struct xgene_enet_pdata *pdata)
u16 dst_ring_num;
int ret;
- xgene_gmac_tx_disable(pdata);
- xgene_gmac_rx_disable(pdata);
+ pdata->port_ops->reset(pdata);
ret = xgene_enet_create_desc_rings(ndev);
if (ret) {
@@ -853,11 +870,26 @@ static int xgene_enet_init_hw(struct xgene_enet_pdata *pdata)
}
dst_ring_num = xgene_enet_dst_ring_num(pdata->rx_ring);
- xgene_enet_cle_bypass(pdata, dst_ring_num, buf_pool->id);
+ pdata->port_ops->cle_bypass(pdata, dst_ring_num, buf_pool->id);
+ pdata->mac_ops->init(pdata);
return ret;
}
+static void xgene_enet_setup_ops(struct xgene_enet_pdata *pdata)
+{
+ switch (pdata->phy_mode) {
+ case PHY_INTERFACE_MODE_RGMII:
+ pdata->mac_ops = &xgene_gmac_ops;
+ pdata->port_ops = &xgene_gport_ops;
+ break;
+ default:
+ pdata->mac_ops = &xgene_xgmac_ops;
+ pdata->port_ops = &xgene_xgport_ops;
+ break;
+ }
+}
+
static int xgene_enet_probe(struct platform_device *pdev)
{
struct net_device *ndev;
@@ -886,8 +918,7 @@ static int xgene_enet_probe(struct platform_device *pdev)
if (ret)
goto err;
- xgene_enet_reset(pdata);
- xgene_gmac_init(pdata, SPEED_1000);
+ xgene_enet_setup_ops(pdata);
ret = register_netdev(ndev);
if (ret) {
@@ -907,7 +938,10 @@ static int xgene_enet_probe(struct platform_device *pdev)
napi = &pdata->rx_ring->napi;
netif_napi_add(ndev, napi, xgene_enet_napi, NAPI_POLL_WEIGHT);
- ret = xgene_enet_mdio_config(pdata);
+ if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII)
+ ret = xgene_enet_mdio_config(pdata);
+ else
+ INIT_DELAYED_WORK(&pdata->link_work, xgene_enet_link_state);
return ret;
err:
@@ -918,19 +952,21 @@ err:
static int xgene_enet_remove(struct platform_device *pdev)
{
struct xgene_enet_pdata *pdata;
+ struct xgene_mac_ops *mac_ops;
struct net_device *ndev;
pdata = platform_get_drvdata(pdev);
+ mac_ops = pdata->mac_ops;
ndev = pdata->ndev;
- xgene_gmac_rx_disable(pdata);
- xgene_gmac_tx_disable(pdata);
+ mac_ops->rx_disable(pdata);
+ mac_ops->tx_disable(pdata);
netif_napi_del(&pdata->rx_ring->napi);
xgene_enet_mdio_remove(pdata);
xgene_enet_delete_desc_rings(pdata);
unregister_netdev(ndev);
- xgene_gport_shutdown(pdata);
+ pdata->port_ops->shutdown(pdata);
free_netdev(ndev);
return 0;
@@ -956,5 +992,6 @@ module_platform_driver(xgene_enet_driver);
MODULE_DESCRIPTION("APM X-Gene SoC Ethernet driver");
MODULE_VERSION(XGENE_DRV_VERSION);
+MODULE_AUTHOR("Iyappan Subramanian <isubramanian@....com>");
MODULE_AUTHOR("Keyur Chudgar <kchudgar@....com>");
MODULE_LICENSE("GPL");
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.h b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
index 0815866..567ca6e 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.h
@@ -68,6 +68,23 @@ struct xgene_enet_desc_ring {
};
};
+struct xgene_mac_ops {
+ void (*init)(struct xgene_enet_pdata *pdata);
+ void (*reset)(struct xgene_enet_pdata *pdata);
+ void (*tx_enable)(struct xgene_enet_pdata *pdata);
+ void (*rx_enable)(struct xgene_enet_pdata *pdata);
+ void (*tx_disable)(struct xgene_enet_pdata *pdata);
+ void (*rx_disable)(struct xgene_enet_pdata *pdata);
+ void (*set_mac_addr)(struct xgene_enet_pdata *pdata);
+};
+
+struct xgene_port_ops {
+ void (*reset)(struct xgene_enet_pdata *pdata);
+ void (*cle_bypass)(struct xgene_enet_pdata *pdata,
+ u32 dst_ring_num, u16 bufpool_id);
+ void (*shutdown)(struct xgene_enet_pdata *pdata);
+};
+
/* ethernet private data */
struct xgene_enet_pdata {
struct net_device *ndev;
@@ -87,9 +104,9 @@ struct xgene_enet_pdata {
void __iomem *eth_csr_addr;
void __iomem *eth_ring_if_addr;
void __iomem *eth_diag_csr_addr;
- void __iomem *mcx_mac_addr;
+ void __iomem *mac_addr;
void __iomem *mcx_stats_addr;
- void __iomem *mcx_mac_csr_addr;
+ void __iomem *mac_csr_addr;
void __iomem *base_addr;
void __iomem *ring_csr_addr;
void __iomem *ring_cmd_addr;
@@ -98,6 +115,9 @@ struct xgene_enet_pdata {
u32 speed;
u16 rm;
struct rtnl_link_stats64 stats;
+ struct xgene_mac_ops *mac_ops;
+ struct xgene_port_ops *port_ops;
+ struct delayed_work link_work;
};
/* Set the specified value into a bit-field defined by its starting position
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c
new file mode 100644
index 0000000..219bb7e
--- /dev/null
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.c
@@ -0,0 +1,187 @@
+/* Applied Micro X-Gene SoC Ethernet Driver
+ *
+ * Copyright (c) 2014, Applied Micro Circuits Corporation
+ * Authors: Iyappan Subramanian <isubramanian@....com>
+ * Keyur Chudgar <kchudgar@....com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "xgene_enet_main.h"
+#include "xgene_enet_hw.h"
+#include "xgene_enet_xgmac.h"
+
+static void xgene_xgmac_reset(struct xgene_enet_pdata *pdata)
+{
+ xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_0, HSTMACRST);
+ xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_0, 0);
+}
+
+static void xgene_xgmac_set_mac_addr(struct xgene_enet_pdata *pdata)
+{
+ u32 addr0, addr1;
+ u8 *dev_addr = pdata->ndev->dev_addr;
+
+ addr0 = (dev_addr[3] << 24) | (dev_addr[2] << 16) |
+ (dev_addr[1] << 8) | dev_addr[0];
+ addr1 = (dev_addr[5] << 24) | (dev_addr[4] << 16);
+
+ xgene_enet_wr_mac(pdata, HSTMACADR_LSW_ADDR, addr0);
+ xgene_enet_wr_mac(pdata, HSTMACADR_MSW_ADDR, addr1);
+}
+
+static u32 xgene_enet_link_status(struct xgene_enet_pdata *pdata)
+{
+ u32 data;
+
+ xgene_enet_rd_csr(pdata, XG_LINK_STATUS_ADDR, &data);
+
+ return data;
+}
+
+static void xgene_xgmac_init(struct xgene_enet_pdata *pdata)
+{
+ u32 data;
+
+ xgene_xgmac_reset(pdata);
+
+ xgene_enet_rd_mac(pdata, AXGMAC_CONFIG_1, &data);
+ data |= HSTPPEN;
+ data &= ~HSTLENCHK;
+ xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_1, data);
+
+ xgene_enet_wr_mac(pdata, HSTMAXFRAME_LENGTH_ADDR, 0x06000600);
+ xgene_xgmac_set_mac_addr(pdata);
+
+ xgene_enet_rd_csr(pdata, XG_RSIF_CONFIG_REG_ADDR, &data);
+ data |= CFG_RSIF_FPBUFF_TIMEOUT_EN;
+ xgene_enet_wr_csr(pdata, XG_RSIF_CONFIG_REG_ADDR, data);
+
+ xgene_enet_wr_csr(pdata, XG_CFG_BYPASS_ADDR, RESUME_TX);
+ xgene_enet_wr_csr(pdata, XGENET_RX_DV_GATE_REG_0_ADDR, 0);
+ xgene_enet_rd_csr(pdata, XG_ENET_SPARE_CFG_REG_ADDR, &data);
+ data |= BIT(12);
+ xgene_enet_wr_csr(pdata, XG_ENET_SPARE_CFG_REG_ADDR, data);
+ xgene_enet_wr_csr(pdata, XG_ENET_SPARE_CFG_REG_1_ADDR, 0x82);
+}
+
+static void xgene_xgmac_rx_enable(struct xgene_enet_pdata *pdata)
+{
+ u32 data;
+
+ xgene_enet_rd_mac(pdata, AXGMAC_CONFIG_1, &data);
+ xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_1, data | HSTRFEN);
+}
+
+static void xgene_xgmac_tx_enable(struct xgene_enet_pdata *pdata)
+{
+ u32 data;
+
+ xgene_enet_rd_mac(pdata, AXGMAC_CONFIG_1, &data);
+ xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_1, data | HSTTFEN);
+}
+
+static void xgene_xgmac_rx_disable(struct xgene_enet_pdata *pdata)
+{
+ u32 data;
+
+ xgene_enet_rd_mac(pdata, AXGMAC_CONFIG_1, &data);
+ xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_1, data & ~HSTRFEN);
+}
+
+static void xgene_xgmac_tx_disable(struct xgene_enet_pdata *pdata)
+{
+ u32 data;
+
+ xgene_enet_rd_mac(pdata, AXGMAC_CONFIG_1, &data);
+ xgene_enet_wr_mac(pdata, AXGMAC_CONFIG_1, data & ~HSTTFEN);
+}
+
+static void xgene_enet_reset(struct xgene_enet_pdata *pdata)
+{
+ clk_prepare_enable(pdata->clk);
+ clk_disable_unprepare(pdata->clk);
+ clk_prepare_enable(pdata->clk);
+
+ xgene_enet_ecc_init(pdata);
+ xgene_enet_config_ring_if_assoc(pdata, 0);
+}
+
+static void xgene_enet_xgcle_bypass(struct xgene_enet_pdata *pdata,
+ u32 dst_ring_num, u16 bufpool_id)
+{
+ u32 cb, fpsel;
+
+ xgene_enet_rd_csr(pdata, XCLE_BYPASS_REG0_ADDR, &cb);
+ cb |= CFG_CLE_BYPASS_EN0;
+ CFG_CLE_IP_PROTOCOL0_SET(&cb, 3);
+ xgene_enet_wr_csr(pdata, XCLE_BYPASS_REG0_ADDR, cb);
+
+ fpsel = xgene_enet_ring_bufnum(bufpool_id) - 0x20;
+ xgene_enet_rd_csr(pdata, XCLE_BYPASS_REG1_ADDR, &cb);
+ CFG_CLE_DSTQID0_SET(&cb, dst_ring_num);
+ CFG_CLE_FPSEL0_SET(&cb, fpsel);
+ xgene_enet_wr_csr(pdata, XCLE_BYPASS_REG1_ADDR, cb);
+}
+
+static void xgene_enet_shutdown(struct xgene_enet_pdata *pdata)
+{
+ clk_disable_unprepare(pdata->clk);
+}
+
+void xgene_enet_link_state(struct work_struct *work)
+{
+ struct xgene_enet_pdata *pdata = container_of(to_delayed_work(work),
+ struct xgene_enet_pdata, link_work);
+ struct net_device *ndev = pdata->ndev;
+ u32 link_status, poll_interval;
+
+ link_status = xgene_enet_link_status(pdata);
+ if (link_status) {
+ if (!netif_carrier_ok(ndev)) {
+ netif_carrier_on(ndev);
+ xgene_xgmac_init(pdata);
+ xgene_xgmac_rx_enable(pdata);
+ xgene_xgmac_tx_enable(pdata);
+ netdev_info(ndev, "Link is Up - 10Gbps\n");
+ }
+ poll_interval = PHY_POLL_LINK_ON;
+ } else {
+ if (netif_carrier_ok(ndev)) {
+ xgene_xgmac_rx_disable(pdata);
+ xgene_xgmac_tx_disable(pdata);
+ netif_carrier_off(ndev);
+ netdev_info(ndev, "Link is Down\n");
+ }
+ poll_interval = PHY_POLL_LINK_OFF;
+ }
+
+ schedule_delayed_work(&pdata->link_work, poll_interval);
+}
+
+struct xgene_mac_ops xgene_xgmac_ops = {
+ .init = xgene_xgmac_init,
+ .reset = xgene_xgmac_reset,
+ .rx_enable = xgene_xgmac_rx_enable,
+ .tx_enable = xgene_xgmac_tx_enable,
+ .rx_disable = xgene_xgmac_rx_disable,
+ .tx_disable = xgene_xgmac_tx_disable,
+ .set_mac_addr = xgene_xgmac_set_mac_addr,
+};
+
+struct xgene_port_ops xgene_xgport_ops = {
+ .reset = xgene_enet_reset,
+ .cle_bypass = xgene_enet_xgcle_bypass,
+ .shutdown = xgene_enet_shutdown,
+};
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h
new file mode 100644
index 0000000..b6cc0fe
--- /dev/null
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_xgmac.h
@@ -0,0 +1,64 @@
+/* Applied Micro X-Gene SoC Ethernet Driver
+ *
+ * Copyright (c) 2014, Applied Micro Circuits Corporation
+ * Authors: Iyappan Subramanian <isubramanian@....com>
+ * Keyur Chudgar <kchudgar@....com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __XGENE_ENET_XGMAC_H__
+#define __XGENE_ENET_XGMAC_H__
+
+#define BLOCK_AXG_MAC_OFFSET 0x0800
+#define BLOCK_AXG_MAC_CSR_OFFSET 0x2000
+
+#define AXGMAC_CONFIG_0 0x0000
+#define AXGMAC_CONFIG_1 0x0004
+#define HSTMACRST BIT(31)
+#define HSTTCTLEN BIT(31)
+#define HSTTFEN BIT(30)
+#define HSTRCTLEN BIT(29)
+#define HSTRFEN BIT(28)
+#define HSTPPEN BIT(7)
+#define HSTDRPLT64 BIT(5)
+#define HSTLENCHK BIT(3)
+#define HSTMACADR_LSW_ADDR 0x0010
+#define HSTMACADR_MSW_ADDR 0x0014
+#define HSTMAXFRAME_LENGTH_ADDR 0x0020
+
+#define XGENET_SRST_ADDR 0x0000
+#define XGENET_CLKEN_ADDR 0x0008
+#define CSR_CLK BIT(0)
+#define XGENET_CLK BIT(1)
+#define CSR_RST BIT(0)
+#define XGENET_RST BIT(1)
+
+#define XG_RSIF_CONFIG_REG_ADDR 0x00a0
+#define XCLE_BYPASS_REG0_ADDR 0x0160
+#define XCLE_BYPASS_REG1_ADDR 0x0164
+#define XG_CFG_BYPASS_ADDR 0x0204
+#define XG_LINK_STATUS_ADDR 0x0228
+#define XG_ENET_SPARE_CFG_REG_ADDR 0x040c
+#define XG_ENET_SPARE_CFG_REG_1_ADDR 0x0410
+#define XGENET_RX_DV_GATE_REG_0_ADDR 0x0804
+
+#define PHY_POLL_LINK_ON (10 * HZ)
+#define PHY_POLL_LINK_OFF (PHY_POLL_LINK_ON / 5)
+
+void xgene_enet_link_state(struct work_struct *work);
+extern struct xgene_mac_ops xgene_xgmac_ops;
+extern struct xgene_port_ops xgene_xgport_ops;
+
+#endif /* __XGENE_ENET_XGMAC_H__ */
--
1.9.1
--
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