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- /*
- * Texas Instruments Ethernet Switch Driver
- *
- * Copyright (C) 2012 Texas Instruments
- *
- * 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 version 2.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
- #include <linux/kernel.h>
- #include <linux/io.h>
- #include <linux/clk.h>
- #include <linux/timer.h>
- #include <linux/module.h>
- #include <linux/platform_device.h>
- #include <linux/irqreturn.h>
- #include <linux/interrupt.h>
- #include <linux/if_ether.h>
- #include <linux/etherdevice.h>
- #include <linux/netdevice.h>
- #include <linux/net_tstamp.h>
- #include <linux/phy.h>
- #include <linux/workqueue.h>
- #include <linux/delay.h>
- #include <linux/pm_runtime.h>
- #include <linux/gpio.h>
- #include <linux/of.h>
- #include <linux/of_mdio.h>
- #include <linux/of_net.h>
- #include <linux/of_device.h>
- #include <linux/if_vlan.h>
- #include <linux/pinctrl/consumer.h>
- #include "cpsw.h"
- #include "cpsw_ale.h"
- #include "cpts.h"
- #include "davinci_cpdma.h"
- #define CPSW_DEBUG (NETIF_MSG_HW | NETIF_MSG_WOL | \
- NETIF_MSG_DRV | NETIF_MSG_LINK | \
- NETIF_MSG_IFUP | NETIF_MSG_INTR | \
- NETIF_MSG_PROBE | NETIF_MSG_TIMER | \
- NETIF_MSG_IFDOWN | NETIF_MSG_RX_ERR | \
- NETIF_MSG_TX_ERR | NETIF_MSG_TX_DONE | \
- NETIF_MSG_PKTDATA | NETIF_MSG_TX_QUEUED | \
- NETIF_MSG_RX_STATUS)
- #define cpsw_info(priv, type, format, ...) \
- do { \
- if (netif_msg_##type(priv) && net_ratelimit()) \
- dev_info(priv->dev, format, ## __VA_ARGS__); \
- } while (0)
- #define cpsw_err(priv, type, format, ...) \
- do { \
- if (netif_msg_##type(priv) && net_ratelimit()) \
- dev_err(priv->dev, format, ## __VA_ARGS__); \
- } while (0)
- #define cpsw_dbg(priv, type, format, ...) \
- do { \
- if (netif_msg_##type(priv) && net_ratelimit()) \
- dev_dbg(priv->dev, format, ## __VA_ARGS__); \
- } while (0)
- #define cpsw_notice(priv, type, format, ...) \
- do { \
- if (netif_msg_##type(priv) && net_ratelimit()) \
- dev_notice(priv->dev, format, ## __VA_ARGS__); \
- } while (0)
- #define ALE_ALL_PORTS 0x7
- #define CPSW_MAJOR_VERSION(reg) (reg >> 8 & 0x7)
- #define CPSW_MINOR_VERSION(reg) (reg & 0xff)
- #define CPSW_RTL_VERSION(reg) ((reg >> 11) & 0x1f)
- #define CPSW_VERSION_1 0x19010a
- #define CPSW_VERSION_2 0x19010c
- #define CPSW_VERSION_3 0x19010f
- #define CPSW_VERSION_4 0x190112
- #define HOST_PORT_NUM 0
- #define SLIVER_SIZE 0x40
- #define CPSW1_HOST_PORT_OFFSET 0x028
- #define CPSW1_SLAVE_OFFSET 0x050
- #define CPSW1_SLAVE_SIZE 0x040
- #define CPSW1_CPDMA_OFFSET 0x100
- #define CPSW1_STATERAM_OFFSET 0x200
- #define CPSW1_HW_STATS 0x400
- #define CPSW1_CPTS_OFFSET 0x500
- #define CPSW1_ALE_OFFSET 0x600
- #define CPSW1_SLIVER_OFFSET 0x700
- #define CPSW2_HOST_PORT_OFFSET 0x108
- #define CPSW2_SLAVE_OFFSET 0x200
- #define CPSW2_SLAVE_SIZE 0x100
- #define CPSW2_CPDMA_OFFSET 0x800
- #define CPSW2_HW_STATS 0x900
- #define CPSW2_STATERAM_OFFSET 0xa00
- #define CPSW2_CPTS_OFFSET 0xc00
- #define CPSW2_ALE_OFFSET 0xd00
- #define CPSW2_SLIVER_OFFSET 0xd80
- #define CPSW2_BD_OFFSET 0x2000
- #define CPDMA_RXTHRESH 0x0c0
- #define CPDMA_RXFREE 0x0e0
- #define CPDMA_TXHDP 0x00
- #define CPDMA_RXHDP 0x20
- #define CPDMA_TXCP 0x40
- #define CPDMA_RXCP 0x60
- #define CPSW_POLL_WEIGHT 64
- #define CPSW_MIN_PACKET_SIZE 60
- #define CPSW_MAX_PACKET_SIZE (1500 + 14 + 4 + 4)
- #define RX_PRIORITY_MAPPING 0x76543210
- #define TX_PRIORITY_MAPPING 0x33221100
- #define CPDMA_TX_PRIORITY_MAP 0x76543210
- #define CPSW_VLAN_AWARE BIT(1)
- #define CPSW_ALE_VLAN_AWARE 1
- #define CPSW_FIFO_NORMAL_MODE (0 << 16)
- #define CPSW_FIFO_DUAL_MAC_MODE (1 << 16)
- #define CPSW_FIFO_RATE_LIMIT_MODE (2 << 16)
- #define CPSW_INTPACEEN (0x3f << 16)
- #define CPSW_INTPRESCALE_MASK (0x7FF << 0)
- #define CPSW_CMINTMAX_CNT 63
- #define CPSW_CMINTMIN_CNT 2
- #define CPSW_CMINTMAX_INTVL (1000 / CPSW_CMINTMIN_CNT)
- #define CPSW_CMINTMIN_INTVL ((1000 / CPSW_CMINTMAX_CNT) + 1)
- #define cpsw_slave_index(priv) \
- ((priv->data.dual_emac) ? priv->emac_port : \
- priv->data.active_slave)
- static int debug_level;
- module_param(debug_level, int, 0);
- MODULE_PARM_DESC(debug_level, "cpsw debug level (NETIF_MSG bits)");
- static int ale_ageout = 10;
- module_param(ale_ageout, int, 0);
- MODULE_PARM_DESC(ale_ageout, "cpsw ale ageout interval (seconds)");
- static int rx_packet_max = CPSW_MAX_PACKET_SIZE;
- module_param(rx_packet_max, int, 0);
- MODULE_PARM_DESC(rx_packet_max, "maximum receive packet size (bytes)");
- struct cpsw_wr_regs {
- u32 id_ver;
- u32 soft_reset;
- u32 control;
- u32 int_control;
- u32 rx_thresh_en;
- u32 rx_en;
- u32 tx_en;
- u32 misc_en;
- u32 mem_allign1[8];
- u32 rx_thresh_stat;
- u32 rx_stat;
- u32 tx_stat;
- u32 misc_stat;
- u32 mem_allign2[8];
- u32 rx_imax;
- u32 tx_imax;
- };
- struct cpsw_ss_regs {
- u32 id_ver;
- u32 control;
- u32 soft_reset;
- u32 stat_port_en;
- u32 ptype;
- u32 soft_idle;
- u32 thru_rate;
- u32 gap_thresh;
- u32 tx_start_wds;
- u32 flow_control;
- u32 vlan_ltype;
- u32 ts_ltype;
- u32 dlr_ltype;
- };
- /* CPSW_PORT_V1 */
- #define CPSW1_MAX_BLKS 0x00 /* Maximum FIFO Blocks */
- #define CPSW1_BLK_CNT 0x04 /* FIFO Block Usage Count (Read Only) */
- #define CPSW1_TX_IN_CTL 0x08 /* Transmit FIFO Control */
- #define CPSW1_PORT_VLAN 0x0c /* VLAN Register */
- #define CPSW1_TX_PRI_MAP 0x10 /* Tx Header Priority to Switch Pri Mapping */
- #define CPSW1_TS_CTL 0x14 /* Time Sync Control */
- #define CPSW1_TS_SEQ_LTYPE 0x18 /* Time Sync Sequence ID Offset and Msg Type */
- #define CPSW1_TS_VLAN 0x1c /* Time Sync VLAN1 and VLAN2 */
- /* CPSW_PORT_V2 */
- #define CPSW2_CONTROL 0x00 /* Control Register */
- #define CPSW2_MAX_BLKS 0x08 /* Maximum FIFO Blocks */
- #define CPSW2_BLK_CNT 0x0c /* FIFO Block Usage Count (Read Only) */
- #define CPSW2_TX_IN_CTL 0x10 /* Transmit FIFO Control */
- #define CPSW2_PORT_VLAN 0x14 /* VLAN Register */
- #define CPSW2_TX_PRI_MAP 0x18 /* Tx Header Priority to Switch Pri Mapping */
- #define CPSW2_TS_SEQ_MTYPE 0x1c /* Time Sync Sequence ID Offset and Msg Type */
- /* CPSW_PORT_V1 and V2 */
- #define SA_LO 0x20 /* CPGMAC_SL Source Address Low */
- #define SA_HI 0x24 /* CPGMAC_SL Source Address High */
- #define SEND_PERCENT 0x28 /* Transmit Queue Send Percentages */
- /* CPSW_PORT_V2 only */
- #define RX_DSCP_PRI_MAP0 0x30 /* Rx DSCP Priority to Rx Packet Mapping */
- #define RX_DSCP_PRI_MAP1 0x34 /* Rx DSCP Priority to Rx Packet Mapping */
- #define RX_DSCP_PRI_MAP2 0x38 /* Rx DSCP Priority to Rx Packet Mapping */
- #define RX_DSCP_PRI_MAP3 0x3c /* Rx DSCP Priority to Rx Packet Mapping */
- #define RX_DSCP_PRI_MAP4 0x40 /* Rx DSCP Priority to Rx Packet Mapping */
- #define RX_DSCP_PRI_MAP5 0x44 /* Rx DSCP Priority to Rx Packet Mapping */
- #define RX_DSCP_PRI_MAP6 0x48 /* Rx DSCP Priority to Rx Packet Mapping */
- #define RX_DSCP_PRI_MAP7 0x4c /* Rx DSCP Priority to Rx Packet Mapping */
- /* Bit definitions for the CPSW2_CONTROL register */
- #define PASS_PRI_TAGGED (1<<24) /* Pass Priority Tagged */
- #define VLAN_LTYPE2_EN (1<<21) /* VLAN LTYPE 2 enable */
- #define VLAN_LTYPE1_EN (1<<20) /* VLAN LTYPE 1 enable */
- #define DSCP_PRI_EN (1<<16) /* DSCP Priority Enable */
- #define TS_320 (1<<14) /* Time Sync Dest Port 320 enable */
- #define TS_319 (1<<13) /* Time Sync Dest Port 319 enable */
- #define TS_132 (1<<12) /* Time Sync Dest IP Addr 132 enable */
- #define TS_131 (1<<11) /* Time Sync Dest IP Addr 131 enable */
- #define TS_130 (1<<10) /* Time Sync Dest IP Addr 130 enable */
- #define TS_129 (1<<9) /* Time Sync Dest IP Addr 129 enable */
- #define TS_TTL_NONZERO (1<<8) /* Time Sync Time To Live Non-zero enable */
- #define TS_ANNEX_F_EN (1<<6) /* Time Sync Annex F enable */
- #define TS_ANNEX_D_EN (1<<4) /* Time Sync Annex D enable */
- #define TS_LTYPE2_EN (1<<3) /* Time Sync LTYPE 2 enable */
- #define TS_LTYPE1_EN (1<<2) /* Time Sync LTYPE 1 enable */
- #define TS_TX_EN (1<<1) /* Time Sync Transmit Enable */
- #define TS_RX_EN (1<<0) /* Time Sync Receive Enable */
- #define CTRL_V2_TS_BITS \
- (TS_320 | TS_319 | TS_132 | TS_131 | TS_130 | TS_129 |\
- TS_TTL_NONZERO | TS_ANNEX_D_EN | TS_LTYPE1_EN)
- #define CTRL_V2_ALL_TS_MASK (CTRL_V2_TS_BITS | TS_TX_EN | TS_RX_EN)
- #define CTRL_V2_TX_TS_BITS (CTRL_V2_TS_BITS | TS_TX_EN)
- #define CTRL_V2_RX_TS_BITS (CTRL_V2_TS_BITS | TS_RX_EN)
- #define CTRL_V3_TS_BITS \
- (TS_320 | TS_319 | TS_132 | TS_131 | TS_130 | TS_129 |\
- TS_TTL_NONZERO | TS_ANNEX_F_EN | TS_ANNEX_D_EN |\
- TS_LTYPE1_EN)
- #define CTRL_V3_ALL_TS_MASK (CTRL_V3_TS_BITS | TS_TX_EN | TS_RX_EN)
- #define CTRL_V3_TX_TS_BITS (CTRL_V3_TS_BITS | TS_TX_EN)
- #define CTRL_V3_RX_TS_BITS (CTRL_V3_TS_BITS | TS_RX_EN)
- /* Bit definitions for the CPSW2_TS_SEQ_MTYPE register */
- #define TS_SEQ_ID_OFFSET_SHIFT (16) /* Time Sync Sequence ID Offset */
- #define TS_SEQ_ID_OFFSET_MASK (0x3f)
- #define TS_MSG_TYPE_EN_SHIFT (0) /* Time Sync Message Type Enable */
- #define TS_MSG_TYPE_EN_MASK (0xffff)
- /* The PTP event messages - Sync, Delay_Req, Pdelay_Req, and Pdelay_Resp. */
- #define EVENT_MSG_BITS ((1<<0) | (1<<1) | (1<<2) | (1<<3))
- /* Bit definitions for the CPSW1_TS_CTL register */
- #define CPSW_V1_TS_RX_EN BIT(0)
- #define CPSW_V1_TS_TX_EN BIT(4)
- #define CPSW_V1_MSG_TYPE_OFS 16
- /* Bit definitions for the CPSW1_TS_SEQ_LTYPE register */
- #define CPSW_V1_SEQ_ID_OFS_SHIFT 16
- #define CPSW_MAX_BLKS_TX 15
- #define CPSW_MAX_BLKS_TX_SHIFT 4
- #define CPSW_MAX_BLKS_RX 5
- struct cpsw_host_regs {
- u32 max_blks;
- u32 blk_cnt;
- u32 tx_in_ctl;
- u32 port_vlan;
- u32 tx_pri_map;
- u32 cpdma_tx_pri_map;
- u32 cpdma_rx_chan_map;
- };
- struct cpsw_sliver_regs {
- u32 id_ver;
- u32 mac_control;
- u32 mac_status;
- u32 soft_reset;
- u32 rx_maxlen;
- u32 __reserved_0;
- u32 rx_pause;
- u32 tx_pause;
- u32 __reserved_1;
- u32 rx_pri_map;
- };
- struct cpsw_hw_stats {
- u32 rxgoodframes;
- u32 rxbroadcastframes;
- u32 rxmulticastframes;
- u32 rxpauseframes;
- u32 rxcrcerrors;
- u32 rxaligncodeerrors;
- u32 rxoversizedframes;
- u32 rxjabberframes;
- u32 rxundersizedframes;
- u32 rxfragments;
- u32 __pad_0[2];
- u32 rxoctets;
- u32 txgoodframes;
- u32 txbroadcastframes;
- u32 txmulticastframes;
- u32 txpauseframes;
- u32 txdeferredframes;
- u32 txcollisionframes;
- u32 txsinglecollframes;
- u32 txmultcollframes;
- u32 txexcessivecollisions;
- u32 txlatecollisions;
- u32 txunderrun;
- u32 txcarriersenseerrors;
- u32 txoctets;
- u32 octetframes64;
- u32 octetframes65t127;
- u32 octetframes128t255;
- u32 octetframes256t511;
- u32 octetframes512t1023;
- u32 octetframes1024tup;
- u32 netoctets;
- u32 rxsofoverruns;
- u32 rxmofoverruns;
- u32 rxdmaoverruns;
- };
- struct cpsw_slave {
- void __iomem *regs;
- struct cpsw_sliver_regs __iomem *sliver;
- int slave_num;
- u32 mac_control;
- struct cpsw_slave_data *data;
- struct phy_device *phy;
- struct net_device *ndev;
- u32 port_vlan;
- u32 open_stat;
- };
- static inline u32 slave_read(struct cpsw_slave *slave, u32 offset)
- {
- return __raw_readl(slave->regs + offset);
- }
- static inline void slave_write(struct cpsw_slave *slave, u32 val, u32 offset)
- {
- __raw_writel(val, slave->regs + offset);
- }
- struct cpsw_priv {
- spinlock_t lock;
- struct platform_device *pdev;
- struct net_device *ndev;
- struct napi_struct napi_rx;
- struct napi_struct napi_tx;
- struct device *dev;
- struct cpsw_platform_data data;
- struct cpsw_ss_regs __iomem *regs;
- struct cpsw_wr_regs __iomem *wr_regs;
- u8 __iomem *hw_stats;
- struct cpsw_host_regs __iomem *host_port_regs;
- u32 msg_enable;
- u32 version;
- u32 coal_intvl;
- u32 bus_freq_mhz;
- int rx_packet_max;
- int host_port;
- struct clk *clk;
- u8 mac_addr[ETH_ALEN];
- struct cpsw_slave *slaves;
- struct cpdma_ctlr *dma;
- struct cpdma_chan *txch, *rxch;
- struct cpsw_ale *ale;
- bool rx_pause;
- bool tx_pause;
- bool quirk_irq;
- bool rx_irq_disabled;
- bool tx_irq_disabled;
- /* snapshot of IRQ numbers */
- u32 irqs_table[4];
- u32 num_irqs;
- struct cpts *cpts;
- u32 emac_port;
- };
- struct cpsw_stats {
- char stat_string[ETH_GSTRING_LEN];
- int type;
- int sizeof_stat;
- int stat_offset;
- };
- enum {
- CPSW_STATS,
- CPDMA_RX_STATS,
- CPDMA_TX_STATS,
- };
- #define CPSW_STAT(m) CPSW_STATS, \
- sizeof(((struct cpsw_hw_stats *)0)->m), \
- offsetof(struct cpsw_hw_stats, m)
- #define CPDMA_RX_STAT(m) CPDMA_RX_STATS, \
- sizeof(((struct cpdma_chan_stats *)0)->m), \
- offsetof(struct cpdma_chan_stats, m)
- #define CPDMA_TX_STAT(m) CPDMA_TX_STATS, \
- sizeof(((struct cpdma_chan_stats *)0)->m), \
- offsetof(struct cpdma_chan_stats, m)
- static const struct cpsw_stats cpsw_gstrings_stats[] = {
- { "Good Rx Frames", CPSW_STAT(rxgoodframes) },
- { "Broadcast Rx Frames", CPSW_STAT(rxbroadcastframes) },
- { "Multicast Rx Frames", CPSW_STAT(rxmulticastframes) },
- { "Pause Rx Frames", CPSW_STAT(rxpauseframes) },
- { "Rx CRC Errors", CPSW_STAT(rxcrcerrors) },
- { "Rx Align/Code Errors", CPSW_STAT(rxaligncodeerrors) },
- { "Oversize Rx Frames", CPSW_STAT(rxoversizedframes) },
- { "Rx Jabbers", CPSW_STAT(rxjabberframes) },
- { "Undersize (Short) Rx Frames", CPSW_STAT(rxundersizedframes) },
- { "Rx Fragments", CPSW_STAT(rxfragments) },
- { "Rx Octets", CPSW_STAT(rxoctets) },
- { "Good Tx Frames", CPSW_STAT(txgoodframes) },
- { "Broadcast Tx Frames", CPSW_STAT(txbroadcastframes) },
- { "Multicast Tx Frames", CPSW_STAT(txmulticastframes) },
- { "Pause Tx Frames", CPSW_STAT(txpauseframes) },
- { "Deferred Tx Frames", CPSW_STAT(txdeferredframes) },
- { "Collisions", CPSW_STAT(txcollisionframes) },
- { "Single Collision Tx Frames", CPSW_STAT(txsinglecollframes) },
- { "Multiple Collision Tx Frames", CPSW_STAT(txmultcollframes) },
- { "Excessive Collisions", CPSW_STAT(txexcessivecollisions) },
- { "Late Collisions", CPSW_STAT(txlatecollisions) },
- { "Tx Underrun", CPSW_STAT(txunderrun) },
- { "Carrier Sense Errors", CPSW_STAT(txcarriersenseerrors) },
- { "Tx Octets", CPSW_STAT(txoctets) },
- { "Rx + Tx 64 Octet Frames", CPSW_STAT(octetframes64) },
- { "Rx + Tx 65-127 Octet Frames", CPSW_STAT(octetframes65t127) },
- { "Rx + Tx 128-255 Octet Frames", CPSW_STAT(octetframes128t255) },
- { "Rx + Tx 256-511 Octet Frames", CPSW_STAT(octetframes256t511) },
- { "Rx + Tx 512-1023 Octet Frames", CPSW_STAT(octetframes512t1023) },
- { "Rx + Tx 1024-Up Octet Frames", CPSW_STAT(octetframes1024tup) },
- { "Net Octets", CPSW_STAT(netoctets) },
- { "Rx Start of Frame Overruns", CPSW_STAT(rxsofoverruns) },
- { "Rx Middle of Frame Overruns", CPSW_STAT(rxmofoverruns) },
- { "Rx DMA Overruns", CPSW_STAT(rxdmaoverruns) },
- { "Rx DMA chan: head_enqueue", CPDMA_RX_STAT(head_enqueue) },
- { "Rx DMA chan: tail_enqueue", CPDMA_RX_STAT(tail_enqueue) },
- { "Rx DMA chan: pad_enqueue", CPDMA_RX_STAT(pad_enqueue) },
- { "Rx DMA chan: misqueued", CPDMA_RX_STAT(misqueued) },
- { "Rx DMA chan: desc_alloc_fail", CPDMA_RX_STAT(desc_alloc_fail) },
- { "Rx DMA chan: pad_alloc_fail", CPDMA_RX_STAT(pad_alloc_fail) },
- { "Rx DMA chan: runt_receive_buf", CPDMA_RX_STAT(runt_receive_buff) },
- { "Rx DMA chan: runt_transmit_buf", CPDMA_RX_STAT(runt_transmit_buff) },
- { "Rx DMA chan: empty_dequeue", CPDMA_RX_STAT(empty_dequeue) },
- { "Rx DMA chan: busy_dequeue", CPDMA_RX_STAT(busy_dequeue) },
- { "Rx DMA chan: good_dequeue", CPDMA_RX_STAT(good_dequeue) },
- { "Rx DMA chan: requeue", CPDMA_RX_STAT(requeue) },
- { "Rx DMA chan: teardown_dequeue", CPDMA_RX_STAT(teardown_dequeue) },
- { "Tx DMA chan: head_enqueue", CPDMA_TX_STAT(head_enqueue) },
- { "Tx DMA chan: tail_enqueue", CPDMA_TX_STAT(tail_enqueue) },
- { "Tx DMA chan: pad_enqueue", CPDMA_TX_STAT(pad_enqueue) },
- { "Tx DMA chan: misqueued", CPDMA_TX_STAT(misqueued) },
- { "Tx DMA chan: desc_alloc_fail", CPDMA_TX_STAT(desc_alloc_fail) },
- { "Tx DMA chan: pad_alloc_fail", CPDMA_TX_STAT(pad_alloc_fail) },
- { "Tx DMA chan: runt_receive_buf", CPDMA_TX_STAT(runt_receive_buff) },
- { "Tx DMA chan: runt_transmit_buf", CPDMA_TX_STAT(runt_transmit_buff) },
- { "Tx DMA chan: empty_dequeue", CPDMA_TX_STAT(empty_dequeue) },
- { "Tx DMA chan: busy_dequeue", CPDMA_TX_STAT(busy_dequeue) },
- { "Tx DMA chan: good_dequeue", CPDMA_TX_STAT(good_dequeue) },
- { "Tx DMA chan: requeue", CPDMA_TX_STAT(requeue) },
- { "Tx DMA chan: teardown_dequeue", CPDMA_TX_STAT(teardown_dequeue) },
- };
- #define CPSW_STATS_LEN ARRAY_SIZE(cpsw_gstrings_stats)
- #define napi_to_priv(napi) container_of(napi, struct cpsw_priv, napi)
- #define for_each_slave(priv, func, arg...) \
- do { \
- struct cpsw_slave *slave; \
- int n; \
- if (priv->data.dual_emac) \
- (func)((priv)->slaves + priv->emac_port, ##arg);\
- else \
- for (n = (priv)->data.slaves, \
- slave = (priv)->slaves; \
- n; n--) \
- (func)(slave++, ##arg); \
- } while (0)
- #define cpsw_get_slave_ndev(priv, __slave_no__) \
- ((__slave_no__ < priv->data.slaves) ? \
- priv->slaves[__slave_no__].ndev : NULL)
- #define cpsw_get_slave_priv(priv, __slave_no__) \
- (((__slave_no__ < priv->data.slaves) && \
- (priv->slaves[__slave_no__].ndev)) ? \
- netdev_priv(priv->slaves[__slave_no__].ndev) : NULL) \
- #define cpsw_dual_emac_src_port_detect(status, priv, ndev, skb) \
- do { \
- if (!priv->data.dual_emac) \
- break; \
- if (CPDMA_RX_SOURCE_PORT(status) == 1) { \
- ndev = cpsw_get_slave_ndev(priv, 0); \
- priv = netdev_priv(ndev); \
- skb->dev = ndev; \
- } else if (CPDMA_RX_SOURCE_PORT(status) == 2) { \
- ndev = cpsw_get_slave_ndev(priv, 1); \
- priv = netdev_priv(ndev); \
- skb->dev = ndev; \
- } \
- } while (0)
- #define cpsw_add_mcast(priv, addr) \
- do { \
- if (priv->data.dual_emac) { \
- struct cpsw_slave *slave = priv->slaves + \
- priv->emac_port; \
- int slave_port = cpsw_get_slave_port(priv, \
- slave->slave_num); \
- cpsw_ale_add_mcast(priv->ale, addr, \
- 1 << slave_port | 1 << priv->host_port, \
- ALE_VLAN, slave->port_vlan, 0); \
- } else { \
- cpsw_ale_add_mcast(priv->ale, addr, \
- ALE_ALL_PORTS << priv->host_port, \
- 0, 0, 0); \
- } \
- } while (0)
- static inline int cpsw_get_slave_port(struct cpsw_priv *priv, u32 slave_num)
- {
- if (priv->host_port == 0)
- return slave_num + 1;
- else
- return slave_num;
- }
- static void cpsw_set_promiscious(struct net_device *ndev, bool enable)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpsw_ale *ale = priv->ale;
- int i;
- if (priv->data.dual_emac) {
- bool flag = false;
- /* Enabling promiscuous mode for one interface will be
- * common for both the interface as the interface shares
- * the same hardware resource.
- */
- for (i = 0; i < priv->data.slaves; i++)
- if (priv->slaves[i].ndev->flags & IFF_PROMISC)
- flag = true;
- if (!enable && flag) {
- enable = true;
- dev_err(&ndev->dev, "promiscuity not disabled as the other interface is still in promiscuity mode\n");
- }
- if (enable) {
- /* Enable Bypass */
- cpsw_ale_control_set(ale, 0, ALE_BYPASS, 1);
- dev_dbg(&ndev->dev, "promiscuity enabled\n");
- } else {
- /* Disable Bypass */
- cpsw_ale_control_set(ale, 0, ALE_BYPASS, 0);
- dev_dbg(&ndev->dev, "promiscuity disabled\n");
- }
- } else {
- if (enable) {
- unsigned long timeout = jiffies + HZ;
- /* Disable Learn for all ports (host is port 0 and slaves are port 1 and up */
- for (i = 0; i <= priv->data.slaves; i++) {
- cpsw_ale_control_set(ale, i,
- ALE_PORT_NOLEARN, 1);
- cpsw_ale_control_set(ale, i,
- ALE_PORT_NO_SA_UPDATE, 1);
- }
- /* Clear All Untouched entries */
- cpsw_ale_control_set(ale, 0, ALE_AGEOUT, 1);
- do {
- cpu_relax();
- if (cpsw_ale_control_get(ale, 0, ALE_AGEOUT))
- break;
- } while (time_after(timeout, jiffies));
- cpsw_ale_control_set(ale, 0, ALE_AGEOUT, 1);
- /* Clear all mcast from ALE */
- cpsw_ale_flush_multicast(ale, ALE_ALL_PORTS <<
- priv->host_port, -1);
- /* Flood All Unicast Packets to Host port */
- cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 1);
- dev_dbg(&ndev->dev, "promiscuity enabled\n");
- } else {
- /* Don't Flood All Unicast Packets to Host port */
- cpsw_ale_control_set(ale, 0, ALE_P0_UNI_FLOOD, 0);
- /* Enable Learn for all ports (host is port 0 and slaves are port 1 and up */
- for (i = 0; i <= priv->data.slaves; i++) {
- cpsw_ale_control_set(ale, i,
- ALE_PORT_NOLEARN, 0);
- cpsw_ale_control_set(ale, i,
- ALE_PORT_NO_SA_UPDATE, 0);
- }
- dev_dbg(&ndev->dev, "promiscuity disabled\n");
- }
- }
- }
- static void cpsw_ndo_set_rx_mode(struct net_device *ndev)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- int vid;
- if (priv->data.dual_emac)
- vid = priv->slaves[priv->emac_port].port_vlan;
- else
- vid = priv->data.default_vlan;
- if (ndev->flags & IFF_PROMISC) {
- /* Enable promiscuous mode */
- cpsw_set_promiscious(ndev, true);
- cpsw_ale_set_allmulti(priv->ale, IFF_ALLMULTI);
- return;
- } else {
- /* Disable promiscuous mode */
- cpsw_set_promiscious(ndev, false);
- }
- /* Restore allmulti on vlans if necessary */
- cpsw_ale_set_allmulti(priv->ale, priv->ndev->flags & IFF_ALLMULTI);
- /* Clear all mcast from ALE */
- cpsw_ale_flush_multicast(priv->ale, ALE_ALL_PORTS << priv->host_port,
- vid);
- if (!netdev_mc_empty(ndev)) {
- struct netdev_hw_addr *ha;
- /* program multicast address list into ALE register */
- netdev_for_each_mc_addr(ha, ndev) {
- cpsw_add_mcast(priv, (u8 *)ha->addr);
- }
- }
- }
- static void cpsw_intr_enable(struct cpsw_priv *priv)
- {
- __raw_writel(0xFF, &priv->wr_regs->tx_en);
- __raw_writel(0xFF, &priv->wr_regs->rx_en);
- cpdma_ctlr_int_ctrl(priv->dma, true);
- return;
- }
- static void cpsw_intr_disable(struct cpsw_priv *priv)
- {
- __raw_writel(0, &priv->wr_regs->tx_en);
- __raw_writel(0, &priv->wr_regs->rx_en);
- cpdma_ctlr_int_ctrl(priv->dma, false);
- return;
- }
- static void cpsw_tx_handler(void *token, int len, int status)
- {
- struct sk_buff *skb = token;
- struct net_device *ndev = skb->dev;
- struct cpsw_priv *priv = netdev_priv(ndev);
- /* Check whether the queue is stopped due to stalled tx dma, if the
- * queue is stopped then start the queue as we have free desc for tx
- */
- if (unlikely(netif_queue_stopped(ndev)))
- netif_wake_queue(ndev);
- cpts_tx_timestamp(priv->cpts, skb);
- ndev->stats.tx_packets++;
- ndev->stats.tx_bytes += len;
- dev_kfree_skb_any(skb);
- }
- static void cpsw_rx_handler(void *token, int len, int status)
- {
- struct sk_buff *skb = token;
- struct sk_buff *new_skb;
- struct net_device *ndev = skb->dev;
- struct cpsw_priv *priv = netdev_priv(ndev);
- int ret = 0;
- cpsw_dual_emac_src_port_detect(status, priv, ndev, skb);
- if (unlikely(status < 0) || unlikely(!netif_running(ndev))) {
- bool ndev_status = false;
- struct cpsw_slave *slave = priv->slaves;
- int n;
- if (priv->data.dual_emac) {
- /* In dual emac mode check for all interfaces */
- for (n = priv->data.slaves; n; n--, slave++)
- if (netif_running(slave->ndev))
- ndev_status = true;
- }
- if (ndev_status && (status >= 0)) {
- /* The packet received is for the interface which
- * is already down and the other interface is up
- * and running, instead of freeing which results
- * in reducing of the number of rx descriptor in
- * DMA engine, requeue skb back to cpdma.
- */
- new_skb = skb;
- goto requeue;
- }
- /* the interface is going down, skbs are purged */
- dev_kfree_skb_any(skb);
- return;
- }
- new_skb = netdev_alloc_skb_ip_align(ndev, priv->rx_packet_max);
- if (new_skb) {
- skb_put(skb, len);
- cpts_rx_timestamp(priv->cpts, skb);
- skb->protocol = eth_type_trans(skb, ndev);
- netif_receive_skb(skb);
- ndev->stats.rx_bytes += len;
- ndev->stats.rx_packets++;
- } else {
- ndev->stats.rx_dropped++;
- new_skb = skb;
- }
- requeue:
- ret = cpdma_chan_submit(priv->rxch, new_skb, new_skb->data,
- skb_tailroom(new_skb), 0);
- if (WARN_ON(ret < 0))
- dev_kfree_skb_any(new_skb);
- }
- static irqreturn_t cpsw_tx_interrupt(int irq, void *dev_id)
- {
- struct cpsw_priv *priv = dev_id;
- writel(0, &priv->wr_regs->tx_en);
- cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_TX);
- if (priv->quirk_irq) {
- disable_irq_nosync(priv->irqs_table[1]);
- priv->tx_irq_disabled = true;
- }
- napi_schedule(&priv->napi_tx);
- return IRQ_HANDLED;
- }
- static irqreturn_t cpsw_rx_interrupt(int irq, void *dev_id)
- {
- struct cpsw_priv *priv = dev_id;
- cpdma_ctlr_eoi(priv->dma, CPDMA_EOI_RX);
- writel(0, &priv->wr_regs->rx_en);
- if (priv->quirk_irq) {
- disable_irq_nosync(priv->irqs_table[0]);
- priv->rx_irq_disabled = true;
- }
- napi_schedule(&priv->napi_rx);
- return IRQ_HANDLED;
- }
- static int cpsw_tx_poll(struct napi_struct *napi_tx, int budget)
- {
- struct cpsw_priv *priv = napi_to_priv(napi_tx);
- int num_tx;
- num_tx = cpdma_chan_process(priv->txch, budget);
- if (num_tx < budget) {
- napi_complete(napi_tx);
- writel(0xff, &priv->wr_regs->tx_en);
- if (priv->quirk_irq && priv->tx_irq_disabled) {
- priv->tx_irq_disabled = false;
- enable_irq(priv->irqs_table[1]);
- }
- }
- if (num_tx)
- cpsw_dbg(priv, intr, "poll %d tx pkts\n", num_tx);
- return num_tx;
- }
- static int cpsw_rx_poll(struct napi_struct *napi_rx, int budget)
- {
- struct cpsw_priv *priv = napi_to_priv(napi_rx);
- int num_rx;
- num_rx = cpdma_chan_process(priv->rxch, budget);
- if (num_rx < budget) {
- napi_complete(napi_rx);
- writel(0xff, &priv->wr_regs->rx_en);
- if (priv->quirk_irq && priv->rx_irq_disabled) {
- priv->rx_irq_disabled = false;
- enable_irq(priv->irqs_table[0]);
- }
- }
- if (num_rx)
- cpsw_dbg(priv, intr, "poll %d rx pkts\n", num_rx);
- return num_rx;
- }
- static inline void soft_reset(const char *module, void __iomem *reg)
- {
- unsigned long timeout = jiffies + HZ;
- __raw_writel(1, reg);
- do {
- cpu_relax();
- } while ((__raw_readl(reg) & 1) && time_after(timeout, jiffies));
- WARN(__raw_readl(reg) & 1, "failed to soft-reset %s\n", module);
- }
- #define mac_hi(mac) (((mac)[0] << 0) | ((mac)[1] << 8) | \
- ((mac)[2] << 16) | ((mac)[3] << 24))
- #define mac_lo(mac) (((mac)[4] << 0) | ((mac)[5] << 8))
- static void cpsw_set_slave_mac(struct cpsw_slave *slave,
- struct cpsw_priv *priv)
- {
- slave_write(slave, mac_hi(priv->mac_addr), SA_HI);
- slave_write(slave, mac_lo(priv->mac_addr), SA_LO);
- }
- static void _cpsw_adjust_link(struct cpsw_slave *slave,
- struct cpsw_priv *priv, bool *link)
- {
- struct phy_device *phy = slave->phy;
- u32 mac_control = 0;
- u32 slave_port;
- if (!phy)
- return;
- slave_port = cpsw_get_slave_port(priv, slave->slave_num);
- if (phy->link) {
- mac_control = priv->data.mac_control;
- /* enable forwarding */
- cpsw_ale_control_set(priv->ale, slave_port,
- ALE_PORT_STATE, ALE_PORT_STATE_FORWARD);
- if (phy->speed == 1000)
- mac_control |= BIT(7); /* GIGABITEN */
- if (phy->duplex)
- mac_control |= BIT(0); /* FULLDUPLEXEN */
- /* set speed_in input in case RMII mode is used in 100Mbps */
- if (phy->speed == 100)
- mac_control |= BIT(15);
- /* in band mode only works in 10Mbps RGMII mode */
- else if ((phy->speed == 10) && phy_interface_is_rgmii(phy))
- mac_control |= BIT(18); /* In Band mode */
- if (priv->rx_pause)
- mac_control |= BIT(3);
- if (priv->tx_pause)
- mac_control |= BIT(4);
- *link = true;
- } else {
- mac_control = 0;
- /* disable forwarding */
- cpsw_ale_control_set(priv->ale, slave_port,
- ALE_PORT_STATE, ALE_PORT_STATE_DISABLE);
- }
- if (mac_control != slave->mac_control) {
- phy_print_status(phy);
- __raw_writel(mac_control, &slave->sliver->mac_control);
- }
- slave->mac_control = mac_control;
- }
- static void cpsw_adjust_link(struct net_device *ndev)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- bool link = false;
- for_each_slave(priv, _cpsw_adjust_link, priv, &link);
- if (link) {
- netif_carrier_on(ndev);
- if (netif_running(ndev))
- netif_wake_queue(ndev);
- } else {
- netif_carrier_off(ndev);
- netif_stop_queue(ndev);
- }
- }
- static int cpsw_get_coalesce(struct net_device *ndev,
- struct ethtool_coalesce *coal)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- coal->rx_coalesce_usecs = priv->coal_intvl;
- return 0;
- }
- static int cpsw_set_coalesce(struct net_device *ndev,
- struct ethtool_coalesce *coal)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- u32 int_ctrl;
- u32 num_interrupts = 0;
- u32 prescale = 0;
- u32 addnl_dvdr = 1;
- u32 coal_intvl = 0;
- coal_intvl = coal->rx_coalesce_usecs;
- int_ctrl = readl(&priv->wr_regs->int_control);
- prescale = priv->bus_freq_mhz * 4;
- if (!coal->rx_coalesce_usecs) {
- int_ctrl &= ~(CPSW_INTPRESCALE_MASK | CPSW_INTPACEEN);
- goto update_return;
- }
- if (coal_intvl < CPSW_CMINTMIN_INTVL)
- coal_intvl = CPSW_CMINTMIN_INTVL;
- if (coal_intvl > CPSW_CMINTMAX_INTVL) {
- /* Interrupt pacer works with 4us Pulse, we can
- * throttle further by dilating the 4us pulse.
- */
- addnl_dvdr = CPSW_INTPRESCALE_MASK / prescale;
- if (addnl_dvdr > 1) {
- prescale *= addnl_dvdr;
- if (coal_intvl > (CPSW_CMINTMAX_INTVL * addnl_dvdr))
- coal_intvl = (CPSW_CMINTMAX_INTVL
- * addnl_dvdr);
- } else {
- addnl_dvdr = 1;
- coal_intvl = CPSW_CMINTMAX_INTVL;
- }
- }
- num_interrupts = (1000 * addnl_dvdr) / coal_intvl;
- writel(num_interrupts, &priv->wr_regs->rx_imax);
- writel(num_interrupts, &priv->wr_regs->tx_imax);
- int_ctrl |= CPSW_INTPACEEN;
- int_ctrl &= (~CPSW_INTPRESCALE_MASK);
- int_ctrl |= (prescale & CPSW_INTPRESCALE_MASK);
- update_return:
- writel(int_ctrl, &priv->wr_regs->int_control);
- cpsw_notice(priv, timer, "Set coalesce to %d usecs.\n", coal_intvl);
- if (priv->data.dual_emac) {
- int i;
- for (i = 0; i < priv->data.slaves; i++) {
- priv = netdev_priv(priv->slaves[i].ndev);
- priv->coal_intvl = coal_intvl;
- }
- } else {
- priv->coal_intvl = coal_intvl;
- }
- return 0;
- }
- static int cpsw_get_sset_count(struct net_device *ndev, int sset)
- {
- switch (sset) {
- case ETH_SS_STATS:
- return CPSW_STATS_LEN;
- default:
- return -EOPNOTSUPP;
- }
- }
- static void cpsw_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
- {
- u8 *p = data;
- int i;
- switch (stringset) {
- case ETH_SS_STATS:
- for (i = 0; i < CPSW_STATS_LEN; i++) {
- memcpy(p, cpsw_gstrings_stats[i].stat_string,
- ETH_GSTRING_LEN);
- p += ETH_GSTRING_LEN;
- }
- break;
- }
- }
- static void cpsw_get_ethtool_stats(struct net_device *ndev,
- struct ethtool_stats *stats, u64 *data)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct cpdma_chan_stats rx_stats;
- struct cpdma_chan_stats tx_stats;
- u32 val;
- u8 *p;
- int i;
- /* Collect Davinci CPDMA stats for Rx and Tx Channel */
- cpdma_chan_get_stats(priv->rxch, &rx_stats);
- cpdma_chan_get_stats(priv->txch, &tx_stats);
- for (i = 0; i < CPSW_STATS_LEN; i++) {
- switch (cpsw_gstrings_stats[i].type) {
- case CPSW_STATS:
- val = readl(priv->hw_stats +
- cpsw_gstrings_stats[i].stat_offset);
- data[i] = val;
- break;
- case CPDMA_RX_STATS:
- p = (u8 *)&rx_stats +
- cpsw_gstrings_stats[i].stat_offset;
- data[i] = *(u32 *)p;
- break;
- case CPDMA_TX_STATS:
- p = (u8 *)&tx_stats +
- cpsw_gstrings_stats[i].stat_offset;
- data[i] = *(u32 *)p;
- break;
- }
- }
- }
- static int cpsw_common_res_usage_state(struct cpsw_priv *priv)
- {
- u32 i;
- u32 usage_count = 0;
- if (!priv->data.dual_emac)
- return 0;
- for (i = 0; i < priv->data.slaves; i++)
- if (priv->slaves[i].open_stat)
- usage_count++;
- return usage_count;
- }
- static inline int cpsw_tx_packet_submit(struct net_device *ndev,
- struct cpsw_priv *priv, struct sk_buff *skb)
- {
- if (!priv->data.dual_emac)
- return cpdma_chan_submit(priv->txch, skb, skb->data,
- skb->len, 0);
- if (ndev == cpsw_get_slave_ndev(priv, 0))
- return cpdma_chan_submit(priv->txch, skb, skb->data,
- skb->len, 1);
- else
- return cpdma_chan_submit(priv->txch, skb, skb->data,
- skb->len, 2);
- }
- static inline void cpsw_add_dual_emac_def_ale_entries(
- struct cpsw_priv *priv, struct cpsw_slave *slave,
- u32 slave_port)
- {
- u32 port_mask = 1 << slave_port | 1 << priv->host_port;
- if (priv->version == CPSW_VERSION_1)
- slave_write(slave, slave->port_vlan, CPSW1_PORT_VLAN);
- else
- slave_write(slave, slave->port_vlan, CPSW2_PORT_VLAN);
- cpsw_ale_add_vlan(priv->ale, slave->port_vlan, port_mask,
- port_mask, port_mask, 0);
- cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
- port_mask, ALE_VLAN, slave->port_vlan, 0);
- cpsw_ale_add_ucast(priv->ale, priv->mac_addr,
- priv->host_port, ALE_VLAN | ALE_SECURE, slave->port_vlan);
- }
- static void soft_reset_slave(struct cpsw_slave *slave)
- {
- char name[32];
- snprintf(name, sizeof(name), "slave-%d", slave->slave_num);
- soft_reset(name, &slave->sliver->soft_reset);
- }
- static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv)
- {
- u32 slave_port;
- soft_reset_slave(slave);
- /* setup priority mapping */
- __raw_writel(RX_PRIORITY_MAPPING, &slave->sliver->rx_pri_map);
- switch (priv->version) {
- case CPSW_VERSION_1:
- slave_write(slave, TX_PRIORITY_MAPPING, CPSW1_TX_PRI_MAP);
- /* Increase RX FIFO size to 5 for supporting fullduplex
- * flow control mode
- */
- slave_write(slave,
- (CPSW_MAX_BLKS_TX << CPSW_MAX_BLKS_TX_SHIFT) |
- CPSW_MAX_BLKS_RX, CPSW1_MAX_BLKS);
- break;
- case CPSW_VERSION_2:
- case CPSW_VERSION_3:
- case CPSW_VERSION_4:
- slave_write(slave, TX_PRIORITY_MAPPING, CPSW2_TX_PRI_MAP);
- /* Increase RX FIFO size to 5 for supporting fullduplex
- * flow control mode
- */
- slave_write(slave,
- (CPSW_MAX_BLKS_TX << CPSW_MAX_BLKS_TX_SHIFT) |
- CPSW_MAX_BLKS_RX, CPSW2_MAX_BLKS);
- break;
- }
- /* setup max packet size, and mac address */
- __raw_writel(priv->rx_packet_max, &slave->sliver->rx_maxlen);
- cpsw_set_slave_mac(slave, priv);
- slave->mac_control = 0; /* no link yet */
- slave_port = cpsw_get_slave_port(priv, slave->slave_num);
- if (priv->data.dual_emac)
- cpsw_add_dual_emac_def_ale_entries(priv, slave, slave_port);
- else
- cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
- 1 << slave_port, 0, 0, ALE_MCAST_FWD_2);
- if (slave->data->phy_node) {
- slave->phy = of_phy_connect(priv->ndev, slave->data->phy_node,
- &cpsw_adjust_link, 0, slave->data->phy_if);
- if (!slave->phy) {
- dev_err(priv->dev, "phy \"%s\" not found on slave %d\n",
- slave->data->phy_node->full_name,
- slave->slave_num);
- return;
- }
- } else {
- slave->phy = phy_connect(priv->ndev, slave->data->phy_id,
- &cpsw_adjust_link, slave->data->phy_if);
- if (IS_ERR(slave->phy)) {
- dev_err(priv->dev,
- "phy \"%s\" not found on slave %d, err %ld\n",
- slave->data->phy_id, slave->slave_num,
- PTR_ERR(slave->phy));
- slave->phy = NULL;
- return;
- }
- }
- dev_info(priv->dev, "phy found : id is : 0x%x\n", slave->phy->phy_id);
- phy_start(slave->phy);
- /* Configure GMII_SEL register */
- cpsw_phy_sel(&priv->pdev->dev, slave->phy->interface, slave->slave_num);
- }
- static inline void cpsw_add_default_vlan(struct cpsw_priv *priv)
- {
- const int vlan = priv->data.default_vlan;
- const int port = priv->host_port;
- u32 reg;
- int i;
- int unreg_mcast_mask;
- reg = (priv->version == CPSW_VERSION_1) ? CPSW1_PORT_VLAN :
- CPSW2_PORT_VLAN;
- writel(vlan, &priv->host_port_regs->port_vlan);
- for (i = 0; i < priv->data.slaves; i++)
- slave_write(priv->slaves + i, vlan, reg);
- if (priv->ndev->flags & IFF_ALLMULTI)
- unreg_mcast_mask = ALE_ALL_PORTS;
- else
- unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2;
- cpsw_ale_add_vlan(priv->ale, vlan, ALE_ALL_PORTS << port,
- ALE_ALL_PORTS << port, ALE_ALL_PORTS << port,
- unreg_mcast_mask << port);
- }
- static void cpsw_init_host_port(struct cpsw_priv *priv)
- {
- u32 control_reg;
- u32 fifo_mode;
- /* soft reset the controller and initialize ale */
- soft_reset("cpsw", &priv->regs->soft_reset);
- cpsw_ale_start(priv->ale);
- /* switch to vlan unaware mode */
- cpsw_ale_control_set(priv->ale, priv->host_port, ALE_VLAN_AWARE,
- CPSW_ALE_VLAN_AWARE);
- control_reg = readl(&priv->regs->control);
- control_reg |= CPSW_VLAN_AWARE;
- writel(control_reg, &priv->regs->control);
- fifo_mode = (priv->data.dual_emac) ? CPSW_FIFO_DUAL_MAC_MODE :
- CPSW_FIFO_NORMAL_MODE;
- writel(fifo_mode, &priv->host_port_regs->tx_in_ctl);
- /* setup host port priority mapping */
- __raw_writel(CPDMA_TX_PRIORITY_MAP,
- &priv->host_port_regs->cpdma_tx_pri_map);
- __raw_writel(0, &priv->host_port_regs->cpdma_rx_chan_map);
- cpsw_ale_control_set(priv->ale, priv->host_port,
- ALE_PORT_STATE, ALE_PORT_STATE_FORWARD);
- if (!priv->data.dual_emac) {
- cpsw_ale_add_ucast(priv->ale, priv->mac_addr, priv->host_port,
- 0, 0);
- cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
- 1 << priv->host_port, 0, 0, ALE_MCAST_FWD_2);
- }
- }
- static void cpsw_slave_stop(struct cpsw_slave *slave, struct cpsw_priv *priv)
- {
- u32 slave_port;
- slave_port = cpsw_get_slave_port(priv, slave->slave_num);
- if (!slave->phy)
- return;
- phy_stop(slave->phy);
- phy_disconnect(slave->phy);
- slave->phy = NULL;
- cpsw_ale_control_set(priv->ale, slave_port,
- ALE_PORT_STATE, ALE_PORT_STATE_DISABLE);
- }
- static int cpsw_ndo_open(struct net_device *ndev)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- int i, ret;
- u32 reg;
- if (!cpsw_common_res_usage_state(priv))
- cpsw_intr_disable(priv);
- netif_carrier_off(ndev);
- pm_runtime_get_sync(&priv->pdev->dev);
- reg = priv->version;
- dev_info(priv->dev, "initializing cpsw version %d.%d (%d)\n",
- CPSW_MAJOR_VERSION(reg), CPSW_MINOR_VERSION(reg),
- CPSW_RTL_VERSION(reg));
- /* initialize host and slave ports */
- if (!cpsw_common_res_usage_state(priv))
- cpsw_init_host_port(priv);
- for_each_slave(priv, cpsw_slave_open, priv);
- /* Add default VLAN */
- if (!priv->data.dual_emac)
- cpsw_add_default_vlan(priv);
- else
- cpsw_ale_add_vlan(priv->ale, priv->data.default_vlan,
- ALE_ALL_PORTS << priv->host_port,
- ALE_ALL_PORTS << priv->host_port, 0, 0);
- if (!cpsw_common_res_usage_state(priv)) {
- struct cpsw_priv *priv_sl0 = cpsw_get_slave_priv(priv, 0);
- /* setup tx dma to fixed prio and zero offset */
- cpdma_control_set(priv->dma, CPDMA_TX_PRIO_FIXED, 1);
- cpdma_control_set(priv->dma, CPDMA_RX_BUFFER_OFFSET, 0);
- /* disable priority elevation */
- __raw_writel(0, &priv->regs->ptype);
- /* enable statistics collection only on all ports */
- __raw_writel(0x7, &priv->regs->stat_port_en);
- /* Enable internal fifo flow control */
- writel(0x7, &priv->regs->flow_control);
- napi_enable(&priv_sl0->napi_rx);
- napi_enable(&priv_sl0->napi_tx);
- if (priv_sl0->tx_irq_disabled) {
- priv_sl0->tx_irq_disabled = false;
- enable_irq(priv->irqs_table[1]);
- }
- if (priv_sl0->rx_irq_disabled) {
- priv_sl0->rx_irq_disabled = false;
- enable_irq(priv->irqs_table[0]);
- }
- if (WARN_ON(!priv->data.rx_descs))
- priv->data.rx_descs = 128;
- for (i = 0; i < priv->data.rx_descs; i++) {
- struct sk_buff *skb;
- ret = -ENOMEM;
- skb = __netdev_alloc_skb_ip_align(priv->ndev,
- priv->rx_packet_max, GFP_KERNEL);
- if (!skb)
- goto err_cleanup;
- ret = cpdma_chan_submit(priv->rxch, skb, skb->data,
- skb_tailroom(skb), 0);
- if (ret < 0) {
- kfree_skb(skb);
- goto err_cleanup;
- }
- }
- /* continue even if we didn't manage to submit all
- * receive descs
- */
- cpsw_info(priv, ifup, "submitted %d rx descriptors\n", i);
- if (cpts_register(&priv->pdev->dev, priv->cpts,
- priv->data.cpts_clock_mult,
- priv->data.cpts_clock_shift))
- dev_err(priv->dev, "error registering cpts device\n");
- }
- /* Enable Interrupt pacing if configured */
- if (priv->coal_intvl != 0) {
- struct ethtool_coalesce coal;
- coal.rx_coalesce_usecs = (priv->coal_intvl << 4);
- cpsw_set_coalesce(ndev, &coal);
- }
- cpdma_ctlr_start(priv->dma);
- cpsw_intr_enable(priv);
- if (priv->data.dual_emac)
- priv->slaves[priv->emac_port].open_stat = true;
- return 0;
- err_cleanup:
- cpdma_ctlr_stop(priv->dma);
- for_each_slave(priv, cpsw_slave_stop, priv);
- pm_runtime_put_sync(&priv->pdev->dev);
- netif_carrier_off(priv->ndev);
- return ret;
- }
- static int cpsw_ndo_stop(struct net_device *ndev)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- cpsw_info(priv, ifdown, "shutting down cpsw device\n");
- netif_stop_queue(priv->ndev);
- netif_carrier_off(priv->ndev);
- if (cpsw_common_res_usage_state(priv) <= 1) {
- struct cpsw_priv *priv_sl0 = cpsw_get_slave_priv(priv, 0);
- napi_disable(&priv_sl0->napi_rx);
- napi_disable(&priv_sl0->napi_tx);
- cpts_unregister(priv->cpts);
- cpsw_intr_disable(priv);
- cpdma_ctlr_stop(priv->dma);
- cpsw_ale_stop(priv->ale);
- }
- for_each_slave(priv, cpsw_slave_stop, priv);
- pm_runtime_put_sync(&priv->pdev->dev);
- if (priv->data.dual_emac)
- priv->slaves[priv->emac_port].open_stat = false;
- return 0;
- }
- static netdev_tx_t cpsw_ndo_start_xmit(struct sk_buff *skb,
- struct net_device *ndev)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- int ret;
- ndev->trans_start = jiffies;
- if (skb_padto(skb, CPSW_MIN_PACKET_SIZE)) {
- cpsw_err(priv, tx_err, "packet pad failed\n");
- ndev->stats.tx_dropped++;
- return NETDEV_TX_OK;
- }
- if (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP &&
- priv->cpts->tx_enable)
- skb_shinfo(skb)->tx_flags |= SKBTX_IN_PROGRESS;
- skb_tx_timestamp(skb);
- ret = cpsw_tx_packet_submit(ndev, priv, skb);
- if (unlikely(ret != 0)) {
- cpsw_err(priv, tx_err, "desc submit failed\n");
- goto fail;
- }
- /* If there is no more tx desc left free then we need to
- * tell the kernel to stop sending us tx frames.
- */
- if (unlikely(!cpdma_check_free_tx_desc(priv->txch)))
- netif_stop_queue(ndev);
- return NETDEV_TX_OK;
- fail:
- ndev->stats.tx_dropped++;
- netif_stop_queue(ndev);
- return NETDEV_TX_BUSY;
- }
- #ifdef CONFIG_TI_CPTS
- static void cpsw_hwtstamp_v1(struct cpsw_priv *priv)
- {
- struct cpsw_slave *slave = &priv->slaves[priv->data.active_slave];
- u32 ts_en, seq_id;
- if (!priv->cpts->tx_enable && !priv->cpts->rx_enable) {
- slave_write(slave, 0, CPSW1_TS_CTL);
- return;
- }
- seq_id = (30 << CPSW_V1_SEQ_ID_OFS_SHIFT) | ETH_P_1588;
- ts_en = EVENT_MSG_BITS << CPSW_V1_MSG_TYPE_OFS;
- if (priv->cpts->tx_enable)
- ts_en |= CPSW_V1_TS_TX_EN;
- if (priv->cpts->rx_enable)
- ts_en |= CPSW_V1_TS_RX_EN;
- slave_write(slave, ts_en, CPSW1_TS_CTL);
- slave_write(slave, seq_id, CPSW1_TS_SEQ_LTYPE);
- }
- static void cpsw_hwtstamp_v2(struct cpsw_priv *priv)
- {
- struct cpsw_slave *slave;
- u32 ctrl, mtype;
- if (priv->data.dual_emac)
- slave = &priv->slaves[priv->emac_port];
- else
- slave = &priv->slaves[priv->data.active_slave];
- ctrl = slave_read(slave, CPSW2_CONTROL);
- switch (priv->version) {
- case CPSW_VERSION_2:
- ctrl &= ~CTRL_V2_ALL_TS_MASK;
- if (priv->cpts->tx_enable)
- ctrl |= CTRL_V2_TX_TS_BITS;
- if (priv->cpts->rx_enable)
- ctrl |= CTRL_V2_RX_TS_BITS;
- break;
- case CPSW_VERSION_3:
- default:
- ctrl &= ~CTRL_V3_ALL_TS_MASK;
- if (priv->cpts->tx_enable)
- ctrl |= CTRL_V3_TX_TS_BITS;
- if (priv->cpts->rx_enable)
- ctrl |= CTRL_V3_RX_TS_BITS;
- break;
- }
- mtype = (30 << TS_SEQ_ID_OFFSET_SHIFT) | EVENT_MSG_BITS;
- slave_write(slave, mtype, CPSW2_TS_SEQ_MTYPE);
- slave_write(slave, ctrl, CPSW2_CONTROL);
- __raw_writel(ETH_P_1588, &priv->regs->ts_ltype);
- }
- static int cpsw_hwtstamp_set(struct net_device *dev, struct ifreq *ifr)
- {
- struct cpsw_priv *priv = netdev_priv(dev);
- struct cpts *cpts = priv->cpts;
- struct hwtstamp_config cfg;
- if (priv->version != CPSW_VERSION_1 &&
- priv->version != CPSW_VERSION_2 &&
- priv->version != CPSW_VERSION_3)
- return -EOPNOTSUPP;
- if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
- return -EFAULT;
- /* reserved for future extensions */
- if (cfg.flags)
- return -EINVAL;
- if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON)
- return -ERANGE;
- switch (cfg.rx_filter) {
- case HWTSTAMP_FILTER_NONE:
- cpts->rx_enable = 0;
- break;
- case HWTSTAMP_FILTER_ALL:
- case HWTSTAMP_FILTER_PTP_V1_L4_EVENT:
- case HWTSTAMP_FILTER_PTP_V1_L4_SYNC:
- case HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ:
- return -ERANGE;
- case HWTSTAMP_FILTER_PTP_V2_L4_EVENT:
- case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
- case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ:
- case HWTSTAMP_FILTER_PTP_V2_L2_EVENT:
- case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
- case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ:
- case HWTSTAMP_FILTER_PTP_V2_EVENT:
- case HWTSTAMP_FILTER_PTP_V2_SYNC:
- case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ:
- cpts->rx_enable = 1;
- cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT;
- break;
- default:
- return -ERANGE;
- }
- cpts->tx_enable = cfg.tx_type == HWTSTAMP_TX_ON;
- switch (priv->version) {
- case CPSW_VERSION_1:
- cpsw_hwtstamp_v1(priv);
- break;
- case CPSW_VERSION_2:
- case CPSW_VERSION_3:
- cpsw_hwtstamp_v2(priv);
- break;
- default:
- WARN_ON(1);
- }
- return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
- }
- static int cpsw_hwtstamp_get(struct net_device *dev, struct ifreq *ifr)
- {
- struct cpsw_priv *priv = netdev_priv(dev);
- struct cpts *cpts = priv->cpts;
- struct hwtstamp_config cfg;
- if (priv->version != CPSW_VERSION_1 &&
- priv->version != CPSW_VERSION_2 &&
- priv->version != CPSW_VERSION_3)
- return -EOPNOTSUPP;
- cfg.flags = 0;
- cfg.tx_type = cpts->tx_enable ? HWTSTAMP_TX_ON : HWTSTAMP_TX_OFF;
- cfg.rx_filter = (cpts->rx_enable ?
- HWTSTAMP_FILTER_PTP_V2_EVENT : HWTSTAMP_FILTER_NONE);
- return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
- }
- #endif /*CONFIG_TI_CPTS*/
- static int cpsw_ndo_ioctl(struct net_device *dev, struct ifreq *req, int cmd)
- {
- struct cpsw_priv *priv = netdev_priv(dev);
- int slave_no = cpsw_slave_index(priv);
- if (!netif_running(dev))
- return -EINVAL;
- switch (cmd) {
- #ifdef CONFIG_TI_CPTS
- case SIOCSHWTSTAMP:
- return cpsw_hwtstamp_set(dev, req);
- case SIOCGHWTSTAMP:
- return cpsw_hwtstamp_get(dev, req);
- #endif
- }
- if (!priv->slaves[slave_no].phy)
- return -EOPNOTSUPP;
- return phy_mii_ioctl(priv->slaves[slave_no].phy, req, cmd);
- }
- static void cpsw_ndo_tx_timeout(struct net_device *ndev)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- cpsw_err(priv, tx_err, "transmit timeout, restarting dma\n");
- ndev->stats.tx_errors++;
- cpsw_intr_disable(priv);
- cpdma_chan_stop(priv->txch);
- cpdma_chan_start(priv->txch);
- cpsw_intr_enable(priv);
- }
- static int cpsw_ndo_set_mac_address(struct net_device *ndev, void *p)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- struct sockaddr *addr = (struct sockaddr *)p;
- int flags = 0;
- u16 vid = 0;
- if (!is_valid_ether_addr(addr->sa_data))
- return -EADDRNOTAVAIL;
- if (priv->data.dual_emac) {
- vid = priv->slaves[priv->emac_port].port_vlan;
- flags = ALE_VLAN;
- }
- cpsw_ale_del_ucast(priv->ale, priv->mac_addr, priv->host_port,
- flags, vid);
- cpsw_ale_add_ucast(priv->ale, addr->sa_data, priv->host_port,
- flags, vid);
- memcpy(priv->mac_addr, addr->sa_data, ETH_ALEN);
- memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN);
- for_each_slave(priv, cpsw_set_slave_mac, priv);
- return 0;
- }
- #ifdef CONFIG_NET_POLL_CONTROLLER
- static void cpsw_ndo_poll_controller(struct net_device *ndev)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- cpsw_intr_disable(priv);
- cpsw_rx_interrupt(priv->irqs_table[0], priv);
- cpsw_tx_interrupt(priv->irqs_table[1], priv);
- cpsw_intr_enable(priv);
- }
- #endif
- static inline int cpsw_add_vlan_ale_entry(struct cpsw_priv *priv,
- unsigned short vid)
- {
- int ret;
- int unreg_mcast_mask = 0;
- u32 port_mask;
- if (priv->data.dual_emac) {
- port_mask = (1 << (priv->emac_port + 1)) | ALE_PORT_HOST;
- if (priv->ndev->flags & IFF_ALLMULTI)
- unreg_mcast_mask = port_mask;
- } else {
- port_mask = ALE_ALL_PORTS;
- if (priv->ndev->flags & IFF_ALLMULTI)
- unreg_mcast_mask = ALE_ALL_PORTS;
- else
- unreg_mcast_mask = ALE_PORT_1 | ALE_PORT_2;
- }
- ret = cpsw_ale_add_vlan(priv->ale, vid, port_mask, 0, port_mask,
- unreg_mcast_mask << priv->host_port);
- if (ret != 0)
- return ret;
- ret = cpsw_ale_add_ucast(priv->ale, priv->mac_addr,
- priv->host_port, ALE_VLAN, vid);
- if (ret != 0)
- goto clean_vid;
- ret = cpsw_ale_add_mcast(priv->ale, priv->ndev->broadcast,
- port_mask, ALE_VLAN, vid, 0);
- if (ret != 0)
- goto clean_vlan_ucast;
- return 0;
- clean_vlan_ucast:
- cpsw_ale_del_ucast(priv->ale, priv->mac_addr,
- priv->host_port, ALE_VLAN, vid);
- clean_vid:
- cpsw_ale_del_vlan(priv->ale, vid, 0);
- return ret;
- }
- static int cpsw_ndo_vlan_rx_add_vid(struct net_device *ndev,
- __be16 proto, u16 vid)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- if (vid == priv->data.default_vlan)
- return 0;
- if (priv->data.dual_emac) {
- /* In dual EMAC, reserved VLAN id should not be used for
- * creating VLAN interfaces as this can break the dual
- * EMAC port separation
- */
- int i;
- for (i = 0; i < priv->data.slaves; i++) {
- if (vid == priv->slaves[i].port_vlan)
- return -EINVAL;
- }
- }
- dev_info(priv->dev, "Adding vlanid %d to vlan filter\n", vid);
- return cpsw_add_vlan_ale_entry(priv, vid);
- }
- static int cpsw_ndo_vlan_rx_kill_vid(struct net_device *ndev,
- __be16 proto, u16 vid)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- int ret;
- if (vid == priv->data.default_vlan)
- return 0;
- if (priv->data.dual_emac) {
- int i;
- for (i = 0; i < priv->data.slaves; i++) {
- if (vid == priv->slaves[i].port_vlan)
- return -EINVAL;
- }
- }
- dev_info(priv->dev, "removing vlanid %d from vlan filter\n", vid);
- ret = cpsw_ale_del_vlan(priv->ale, vid, 0);
- if (ret != 0)
- return ret;
- ret = cpsw_ale_del_ucast(priv->ale, priv->mac_addr,
- priv->host_port, ALE_VLAN, vid);
- if (ret != 0)
- return ret;
- return cpsw_ale_del_mcast(priv->ale, priv->ndev->broadcast,
- 0, ALE_VLAN, vid);
- }
- static const struct net_device_ops cpsw_netdev_ops = {
- .ndo_open = cpsw_ndo_open,
- .ndo_stop = cpsw_ndo_stop,
- .ndo_start_xmit = cpsw_ndo_start_xmit,
- .ndo_set_mac_address = cpsw_ndo_set_mac_address,
- .ndo_do_ioctl = cpsw_ndo_ioctl,
- .ndo_validate_addr = eth_validate_addr,
- .ndo_change_mtu = eth_change_mtu,
- .ndo_tx_timeout = cpsw_ndo_tx_timeout,
- .ndo_set_rx_mode = cpsw_ndo_set_rx_mode,
- #ifdef CONFIG_NET_POLL_CONTROLLER
- .ndo_poll_controller = cpsw_ndo_poll_controller,
- #endif
- .ndo_vlan_rx_add_vid = cpsw_ndo_vlan_rx_add_vid,
- .ndo_vlan_rx_kill_vid = cpsw_ndo_vlan_rx_kill_vid,
- };
- static int cpsw_get_regs_len(struct net_device *ndev)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- return priv->data.ale_entries * ALE_ENTRY_WORDS * sizeof(u32);
- }
- static void cpsw_get_regs(struct net_device *ndev,
- struct ethtool_regs *regs, void *p)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- u32 *reg = p;
- /* update CPSW IP version */
- regs->version = priv->version;
- cpsw_ale_dump(priv->ale, reg);
- }
- static void cpsw_get_drvinfo(struct net_device *ndev,
- struct ethtool_drvinfo *info)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- strlcpy(info->driver, "cpsw", sizeof(info->driver));
- strlcpy(info->version, "1.0", sizeof(info->version));
- strlcpy(info->bus_info, priv->pdev->name, sizeof(info->bus_info));
- }
- static u32 cpsw_get_msglevel(struct net_device *ndev)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- return priv->msg_enable;
- }
- static void cpsw_set_msglevel(struct net_device *ndev, u32 value)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- priv->msg_enable = value;
- }
- static int cpsw_get_ts_info(struct net_device *ndev,
- struct ethtool_ts_info *info)
- {
- #ifdef CONFIG_TI_CPTS
- struct cpsw_priv *priv = netdev_priv(ndev);
- info->so_timestamping =
- SOF_TIMESTAMPING_TX_HARDWARE |
- SOF_TIMESTAMPING_TX_SOFTWARE |
- SOF_TIMESTAMPING_RX_HARDWARE |
- SOF_TIMESTAMPING_RX_SOFTWARE |
- SOF_TIMESTAMPING_SOFTWARE |
- SOF_TIMESTAMPING_RAW_HARDWARE;
- info->phc_index = priv->cpts->phc_index;
- info->tx_types =
- (1 << HWTSTAMP_TX_OFF) |
- (1 << HWTSTAMP_TX_ON);
- info->rx_filters =
- (1 << HWTSTAMP_FILTER_NONE) |
- (1 << HWTSTAMP_FILTER_PTP_V2_EVENT);
- #else
- info->so_timestamping =
- SOF_TIMESTAMPING_TX_SOFTWARE |
- SOF_TIMESTAMPING_RX_SOFTWARE |
- SOF_TIMESTAMPING_SOFTWARE;
- info->phc_index = -1;
- info->tx_types = 0;
- info->rx_filters = 0;
- #endif
- return 0;
- }
- static int cpsw_get_settings(struct net_device *ndev,
- struct ethtool_cmd *ecmd)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- int slave_no = cpsw_slave_index(priv);
- if (priv->slaves[slave_no].phy)
- return phy_ethtool_gset(priv->slaves[slave_no].phy, ecmd);
- else
- return -EOPNOTSUPP;
- }
- static int cpsw_set_settings(struct net_device *ndev, struct ethtool_cmd *ecmd)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- int slave_no = cpsw_slave_index(priv);
- if (priv->slaves[slave_no].phy)
- return phy_ethtool_sset(priv->slaves[slave_no].phy, ecmd);
- else
- return -EOPNOTSUPP;
- }
- static void cpsw_get_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- int slave_no = cpsw_slave_index(priv);
- wol->supported = 0;
- wol->wolopts = 0;
- if (priv->slaves[slave_no].phy)
- phy_ethtool_get_wol(priv->slaves[slave_no].phy, wol);
- }
- static int cpsw_set_wol(struct net_device *ndev, struct ethtool_wolinfo *wol)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- int slave_no = cpsw_slave_index(priv);
- if (priv->slaves[slave_no].phy)
- return phy_ethtool_set_wol(priv->slaves[slave_no].phy, wol);
- else
- return -EOPNOTSUPP;
- }
- static void cpsw_get_pauseparam(struct net_device *ndev,
- struct ethtool_pauseparam *pause)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- pause->autoneg = AUTONEG_DISABLE;
- pause->rx_pause = priv->rx_pause ? true : false;
- pause->tx_pause = priv->tx_pause ? true : false;
- }
- static int cpsw_set_pauseparam(struct net_device *ndev,
- struct ethtool_pauseparam *pause)
- {
- struct cpsw_priv *priv = netdev_priv(ndev);
- bool link;
- priv->rx_pause = pause->rx_pause ? true : false;
- priv->tx_pause = pause->tx_pause ? true : false;
- for_each_slave(priv, _cpsw_adjust_link, priv, &link);
- return 0;
- }
- static const struct ethtool_ops cpsw_ethtool_ops = {
- .get_drvinfo = cpsw_get_drvinfo,
- .get_msglevel = cpsw_get_msglevel,
- .set_msglevel = cpsw_set_msglevel,
- .get_link = ethtool_op_get_link,
- .get_ts_info = cpsw_get_ts_info,
- .get_settings = cpsw_get_settings,
- .set_settings = cpsw_set_settings,
- .get_coalesce = cpsw_get_coalesce,
- .set_coalesce = cpsw_set_coalesce,
- .get_sset_count = cpsw_get_sset_count,
- .get_strings = cpsw_get_strings,
- .get_ethtool_stats = cpsw_get_ethtool_stats,
- .get_pauseparam = cpsw_get_pauseparam,
- .set_pauseparam = cpsw_set_pauseparam,
- .get_wol = cpsw_get_wol,
- .set_wol = cpsw_set_wol,
- .get_regs_len = cpsw_get_regs_len,
- .get_regs = cpsw_get_regs,
- };
- static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv,
- u32 slave_reg_ofs, u32 sliver_reg_ofs)
- {
- void __iomem *regs = priv->regs;
- int slave_num = slave->slave_num;
- struct cpsw_slave_data *data = priv->data.slave_data + slave_num;
- slave->data = data;
- slave->regs = regs + slave_reg_ofs;
- slave->sliver = regs + sliver_reg_ofs;
- slave->port_vlan = data->dual_emac_res_vlan;
- }
- static int cpsw_probe_dt(struct cpsw_platform_data *data,
- struct platform_device *pdev)
- {
- struct device_node *node = pdev->dev.of_node;
- struct device_node *slave_node;
- int i = 0, ret;
- u32 prop;
- if (!node)
- return -EINVAL;
- if (of_property_read_u32(node, "slaves", &prop)) {
- dev_err(&pdev->dev, "Missing slaves property in the DT.\n");
- return -EINVAL;
- }
- data->slaves = prop;
- if (of_property_read_u32(node, "active_slave", &prop)) {
- dev_err(&pdev->dev, "Missing active_slave property in the DT.\n");
- return -EINVAL;
- }
- data->active_slave = prop;
- if (of_property_read_u32(node, "cpts_clock_mult", &prop)) {
- dev_err(&pdev->dev, "Missing cpts_clock_mult property in the DT.\n");
- return -EINVAL;
- }
- data->cpts_clock_mult = prop;
- if (of_property_read_u32(node, "cpts_clock_shift", &prop)) {
- dev_err(&pdev->dev, "Missing cpts_clock_shift property in the DT.\n");
- return -EINVAL;
- }
- data->cpts_clock_shift = prop;
- data->slave_data = devm_kzalloc(&pdev->dev, data->slaves
- * sizeof(struct cpsw_slave_data),
- GFP_KERNEL);
- if (!data->slave_data)
- return -ENOMEM;
- if (of_property_read_u32(node, "cpdma_channels", &prop)) {
- dev_err(&pdev->dev, "Missing cpdma_channels property in the DT.\n");
- return -EINVAL;
- }
- data->channels = prop;
- if (of_property_read_u32(node, "ale_entries", &prop)) {
- dev_err(&pdev->dev, "Missing ale_entries property in the DT.\n");
- return -EINVAL;
- }
- data->ale_entries = prop;
- if (of_property_read_u32(node, "bd_ram_size", &prop)) {
- dev_err(&pdev->dev, "Missing bd_ram_size property in the DT.\n");
- return -EINVAL;
- }
- data->bd_ram_size = prop;
- if (of_property_read_u32(node, "rx_descs", &prop)) {
- dev_err(&pdev->dev, "Missing rx_descs property in the DT.\n");
- return -EINVAL;
- }
- data->rx_descs = prop;
- if (of_property_read_u32(node, "mac_control", &prop)) {
- dev_err(&pdev->dev, "Missing mac_control property in the DT.\n");
- return -EINVAL;
- }
- data->mac_control = prop;
- if (of_property_read_bool(node, "dual_emac"))
- data->dual_emac = 1;
- /*
- * Populate all the child nodes here...
- */
- ret = of_platform_populate(node, NULL, NULL, &pdev->dev);
- /* We do not want to force this, as in some cases may not have child */
- if (ret)
- dev_warn(&pdev->dev, "Doesn't have any child node\n");
- for_each_child_of_node(node, slave_node) {
- struct cpsw_slave_data *slave_data = data->slave_data + i;
- const void *mac_addr = NULL;
- int lenp;
- const __be32 *parp;
- /* This is no slave child node, continue */
- if (strcmp(slave_node->name, "slave"))
- continue;
- slave_data->phy_node = of_parse_phandle(slave_node,
- "phy-handle", 0);
- parp = of_get_property(slave_node, "phy_id", &lenp);
- if (of_phy_is_fixed_link(slave_node)) {
- struct device_node *phy_node;
- struct phy_device *phy_dev;
- /* In the case of a fixed PHY, the DT node associated
- * to the PHY is the Ethernet MAC DT node.
- */
- ret = of_phy_register_fixed_link(slave_node);
- if (ret)
- return ret;
- phy_node = of_node_get(slave_node);
- phy_dev = of_phy_find_device(phy_node);
- if (!phy_dev)
- return -ENODEV;
- snprintf(slave_data->phy_id, sizeof(slave_data->phy_id),
- PHY_ID_FMT, phy_dev->bus->id, phy_dev->addr);
- } else if (parp) {
- u32 phyid;
- struct device_node *mdio_node;
- struct platform_device *mdio;
- if (lenp != (sizeof(__be32) * 2)) {
- dev_err(&pdev->dev, "Invalid slave[%d] phy_id property\n", i);
- goto no_phy_slave;
- }
- mdio_node = of_find_node_by_phandle(be32_to_cpup(parp));
- phyid = be32_to_cpup(parp+1);
- mdio = of_find_device_by_node(mdio_node);
- of_node_put(mdio_node);
- if (!mdio) {
- dev_err(&pdev->dev, "Missing mdio platform device\n");
- return -EINVAL;
- }
- snprintf(slave_data->phy_id, sizeof(slave_data->phy_id),
- PHY_ID_FMT, mdio->name, phyid);
- put_device(&mdio->dev);
- } else {
- dev_err(&pdev->dev, "No slave[%d] phy_id or fixed-link property\n", i);
- goto no_phy_slave;
- }
- slave_data->phy_if = of_get_phy_mode(slave_node);
- if (slave_data->phy_if < 0) {
- dev_err(&pdev->dev, "Missing or malformed slave[%d] phy-mode property\n",
- i);
- return slave_data->phy_if;
- }
- no_phy_slave:
- mac_addr = of_get_mac_address(slave_node);
- if (mac_addr) {
- memcpy(slave_data->mac_addr, mac_addr, ETH_ALEN);
- } else {
- ret = ti_cm_get_macid(&pdev->dev, i,
- slave_data->mac_addr);
- if (ret)
- return ret;
- }
- if (data->dual_emac) {
- if (of_property_read_u32(slave_node, "dual_emac_res_vlan",
- &prop)) {
- dev_err(&pdev->dev, "Missing dual_emac_res_vlan in DT.\n");
- slave_data->dual_emac_res_vlan = i+1;
- dev_err(&pdev->dev, "Using %d as Reserved VLAN for %d slave\n",
- slave_data->dual_emac_res_vlan, i);
- } else {
- slave_data->dual_emac_res_vlan = prop;
- }
- }
- i++;
- if (i == data->slaves)
- break;
- }
- return 0;
- }
- static int cpsw_probe_dual_emac(struct platform_device *pdev,
- struct cpsw_priv *priv)
- {
- struct cpsw_platform_data *data = &priv->data;
- struct net_device *ndev;
- struct cpsw_priv *priv_sl2;
- int ret = 0, i;
- ndev = alloc_etherdev(sizeof(struct cpsw_priv));
- if (!ndev) {
- dev_err(&pdev->dev, "cpsw: error allocating net_device\n");
- return -ENOMEM;
- }
- priv_sl2 = netdev_priv(ndev);
- spin_lock_init(&priv_sl2->lock);
- priv_sl2->data = *data;
- priv_sl2->pdev = pdev;
- priv_sl2->ndev = ndev;
- priv_sl2->dev = &ndev->dev;
- priv_sl2->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG);
- priv_sl2->rx_packet_max = max(rx_packet_max, 128);
- if (is_valid_ether_addr(data->slave_data[1].mac_addr)) {
- memcpy(priv_sl2->mac_addr, data->slave_data[1].mac_addr,
- ETH_ALEN);
- dev_info(&pdev->dev, "cpsw: Detected MACID = %pM\n", priv_sl2->mac_addr);
- } else {
- random_ether_addr(priv_sl2->mac_addr);
- dev_info(&pdev->dev, "cpsw: Random MACID = %pM\n", priv_sl2->mac_addr);
- }
- memcpy(ndev->dev_addr, priv_sl2->mac_addr, ETH_ALEN);
- priv_sl2->slaves = priv->slaves;
- priv_sl2->clk = priv->clk;
- priv_sl2->coal_intvl = 0;
- priv_sl2->bus_freq_mhz = priv->bus_freq_mhz;
- priv_sl2->regs = priv->regs;
- priv_sl2->host_port = priv->host_port;
- priv_sl2->host_port_regs = priv->host_port_regs;
- priv_sl2->wr_regs = priv->wr_regs;
- priv_sl2->hw_stats = priv->hw_stats;
- priv_sl2->dma = priv->dma;
- priv_sl2->txch = priv->txch;
- priv_sl2->rxch = priv->rxch;
- priv_sl2->ale = priv->ale;
- priv_sl2->emac_port = 1;
- priv->slaves[1].ndev = ndev;
- priv_sl2->cpts = priv->cpts;
- priv_sl2->version = priv->version;
- for (i = 0; i < priv->num_irqs; i++) {
- priv_sl2->irqs_table[i] = priv->irqs_table[i];
- priv_sl2->num_irqs = priv->num_irqs;
- }
- ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
- ndev->netdev_ops = &cpsw_netdev_ops;
- ndev->ethtool_ops = &cpsw_ethtool_ops;
- /* register the network device */
- SET_NETDEV_DEV(ndev, &pdev->dev);
- ret = register_netdev(ndev);
- if (ret) {
- dev_err(&pdev->dev, "cpsw: error registering net device\n");
- free_netdev(ndev);
- ret = -ENODEV;
- }
- return ret;
- }
- #define CPSW_QUIRK_IRQ BIT(0)
- static struct platform_device_id cpsw_devtype[] = {
- {
- /* keep it for existing comaptibles */
- .name = "cpsw",
- .driver_data = CPSW_QUIRK_IRQ,
- }, {
- .name = "am335x-cpsw",
- .driver_data = CPSW_QUIRK_IRQ,
- }, {
- .name = "am4372-cpsw",
- .driver_data = 0,
- }, {
- .name = "dra7-cpsw",
- .driver_data = 0,
- }, {
- /* sentinel */
- }
- };
- MODULE_DEVICE_TABLE(platform, cpsw_devtype);
- enum ti_cpsw_type {
- CPSW = 0,
- AM335X_CPSW,
- AM4372_CPSW,
- DRA7_CPSW,
- };
- static const struct of_device_id cpsw_of_mtable[] = {
- { .compatible = "ti,cpsw", .data = &cpsw_devtype[CPSW], },
- { .compatible = "ti,am335x-cpsw", .data = &cpsw_devtype[AM335X_CPSW], },
- { .compatible = "ti,am4372-cpsw", .data = &cpsw_devtype[AM4372_CPSW], },
- { .compatible = "ti,dra7-cpsw", .data = &cpsw_devtype[DRA7_CPSW], },
- { /* sentinel */ },
- };
- MODULE_DEVICE_TABLE(of, cpsw_of_mtable);
- static int cpsw_probe(struct platform_device *pdev)
- {
- struct cpsw_platform_data *data;
- struct net_device *ndev;
- struct cpsw_priv *priv;
- struct cpdma_params dma_params;
- struct cpsw_ale_params ale_params;
- void __iomem *ss_regs;
- struct resource *res, *ss_res;
- const struct of_device_id *of_id;
- struct gpio_descs *mode;
- u32 slave_offset, sliver_offset, slave_size;
- int ret = 0, i;
- int irq;
- ndev = alloc_etherdev(sizeof(struct cpsw_priv));
- if (!ndev) {
- dev_err(&pdev->dev, "error allocating net_device\n");
- return -ENOMEM;
- }
- platform_set_drvdata(pdev, ndev);
- priv = netdev_priv(ndev);
- spin_lock_init(&priv->lock);
- priv->pdev = pdev;
- priv->ndev = ndev;
- priv->dev = &ndev->dev;
- priv->msg_enable = netif_msg_init(debug_level, CPSW_DEBUG);
- priv->rx_packet_max = max(rx_packet_max, 128);
- priv->cpts = devm_kzalloc(&pdev->dev, sizeof(struct cpts), GFP_KERNEL);
- if (!priv->cpts) {
- dev_err(&pdev->dev, "error allocating cpts\n");
- ret = -ENOMEM;
- goto clean_ndev_ret;
- }
- mode = devm_gpiod_get_array_optional(&pdev->dev, "mode", GPIOD_OUT_LOW);
- if (IS_ERR(mode)) {
- ret = PTR_ERR(mode);
- dev_err(&pdev->dev, "gpio request failed, ret %d\n", ret);
- goto clean_ndev_ret;
- }
- /*
- * This may be required here for child devices.
- */
- pm_runtime_enable(&pdev->dev);
- /* Select default pin state */
- pinctrl_pm_select_default_state(&pdev->dev);
- if (cpsw_probe_dt(&priv->data, pdev)) {
- dev_err(&pdev->dev, "cpsw: platform data missing\n");
- ret = -ENODEV;
- goto clean_runtime_disable_ret;
- }
- data = &priv->data;
- if (is_valid_ether_addr(data->slave_data[0].mac_addr)) {
- memcpy(priv->mac_addr, data->slave_data[0].mac_addr, ETH_ALEN);
- dev_info(&pdev->dev, "Detected MACID = %pM\n", priv->mac_addr);
- } else {
- eth_random_addr(priv->mac_addr);
- dev_info(&pdev->dev, "Random MACID = %pM\n", priv->mac_addr);
- }
- memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN);
- priv->slaves = devm_kzalloc(&pdev->dev,
- sizeof(struct cpsw_slave) * data->slaves,
- GFP_KERNEL);
- if (!priv->slaves) {
- ret = -ENOMEM;
- goto clean_runtime_disable_ret;
- }
- for (i = 0; i < data->slaves; i++)
- priv->slaves[i].slave_num = i;
- priv->slaves[0].ndev = ndev;
- priv->emac_port = 0;
- priv->clk = devm_clk_get(&pdev->dev, "fck");
- if (IS_ERR(priv->clk)) {
- dev_err(priv->dev, "fck is not found\n");
- ret = -ENODEV;
- goto clean_runtime_disable_ret;
- }
- priv->coal_intvl = 0;
- priv->bus_freq_mhz = clk_get_rate(priv->clk) / 1000000;
- ss_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- ss_regs = devm_ioremap_resource(&pdev->dev, ss_res);
- if (IS_ERR(ss_regs)) {
- ret = PTR_ERR(ss_regs);
- goto clean_runtime_disable_ret;
- }
- priv->regs = ss_regs;
- priv->host_port = HOST_PORT_NUM;
- /* Need to enable clocks with runtime PM api to access module
- * registers
- */
- pm_runtime_get_sync(&pdev->dev);
- priv->version = readl(&priv->regs->id_ver);
- pm_runtime_put_sync(&pdev->dev);
- res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
- priv->wr_regs = devm_ioremap_resource(&pdev->dev, res);
- if (IS_ERR(priv->wr_regs)) {
- ret = PTR_ERR(priv->wr_regs);
- goto clean_runtime_disable_ret;
- }
- memset(&dma_params, 0, sizeof(dma_params));
- memset(&ale_params, 0, sizeof(ale_params));
- switch (priv->version) {
- case CPSW_VERSION_1:
- priv->host_port_regs = ss_regs + CPSW1_HOST_PORT_OFFSET;
- priv->cpts->reg = ss_regs + CPSW1_CPTS_OFFSET;
- priv->hw_stats = ss_regs + CPSW1_HW_STATS;
- dma_params.dmaregs = ss_regs + CPSW1_CPDMA_OFFSET;
- dma_params.txhdp = ss_regs + CPSW1_STATERAM_OFFSET;
- ale_params.ale_regs = ss_regs + CPSW1_ALE_OFFSET;
- slave_offset = CPSW1_SLAVE_OFFSET;
- slave_size = CPSW1_SLAVE_SIZE;
- sliver_offset = CPSW1_SLIVER_OFFSET;
- dma_params.desc_mem_phys = 0;
- break;
- case CPSW_VERSION_2:
- case CPSW_VERSION_3:
- case CPSW_VERSION_4:
- priv->host_port_regs = ss_regs + CPSW2_HOST_PORT_OFFSET;
- priv->cpts->reg = ss_regs + CPSW2_CPTS_OFFSET;
- priv->hw_stats = ss_regs + CPSW2_HW_STATS;
- dma_params.dmaregs = ss_regs + CPSW2_CPDMA_OFFSET;
- dma_params.txhdp = ss_regs + CPSW2_STATERAM_OFFSET;
- ale_params.ale_regs = ss_regs + CPSW2_ALE_OFFSET;
- slave_offset = CPSW2_SLAVE_OFFSET;
- slave_size = CPSW2_SLAVE_SIZE;
- sliver_offset = CPSW2_SLIVER_OFFSET;
- dma_params.desc_mem_phys =
- (u32 __force) ss_res->start + CPSW2_BD_OFFSET;
- break;
- default:
- dev_err(priv->dev, "unknown version 0x%08x\n", priv->version);
- ret = -ENODEV;
- goto clean_runtime_disable_ret;
- }
- for (i = 0; i < priv->data.slaves; i++) {
- struct cpsw_slave *slave = &priv->slaves[i];
- cpsw_slave_init(slave, priv, slave_offset, sliver_offset);
- slave_offset += slave_size;
- sliver_offset += SLIVER_SIZE;
- }
- dma_params.dev = &pdev->dev;
- dma_params.rxthresh = dma_params.dmaregs + CPDMA_RXTHRESH;
- dma_params.rxfree = dma_params.dmaregs + CPDMA_RXFREE;
- dma_params.rxhdp = dma_params.txhdp + CPDMA_RXHDP;
- dma_params.txcp = dma_params.txhdp + CPDMA_TXCP;
- dma_params.rxcp = dma_params.txhdp + CPDMA_RXCP;
- dma_params.num_chan = data->channels;
- dma_params.has_soft_reset = true;
- dma_params.min_packet_size = CPSW_MIN_PACKET_SIZE;
- dma_params.desc_mem_size = data->bd_ram_size;
- dma_params.desc_align = 16;
- dma_params.has_ext_regs = true;
- dma_params.desc_hw_addr = dma_params.desc_mem_phys;
- priv->dma = cpdma_ctlr_create(&dma_params);
- if (!priv->dma) {
- dev_err(priv->dev, "error initializing dma\n");
- ret = -ENOMEM;
- goto clean_runtime_disable_ret;
- }
- priv->txch = cpdma_chan_create(priv->dma, tx_chan_num(0),
- cpsw_tx_handler);
- priv->rxch = cpdma_chan_create(priv->dma, rx_chan_num(0),
- cpsw_rx_handler);
- if (WARN_ON(!priv->txch || !priv->rxch)) {
- dev_err(priv->dev, "error initializing dma channels\n");
- ret = -ENOMEM;
- goto clean_dma_ret;
- }
- ale_params.dev = &ndev->dev;
- ale_params.ale_ageout = ale_ageout;
- ale_params.ale_entries = data->ale_entries;
- ale_params.ale_ports = data->slaves;
- priv->ale = cpsw_ale_create(&ale_params);
- if (!priv->ale) {
- dev_err(priv->dev, "error initializing ale engine\n");
- ret = -ENODEV;
- goto clean_dma_ret;
- }
- ndev->irq = platform_get_irq(pdev, 1);
- if (ndev->irq < 0) {
- dev_err(priv->dev, "error getting irq resource\n");
- ret = ndev->irq;
- goto clean_ale_ret;
- }
- of_id = of_match_device(cpsw_of_mtable, &pdev->dev);
- if (of_id) {
- pdev->id_entry = of_id->data;
- if (pdev->id_entry->driver_data)
- priv->quirk_irq = true;
- }
- /* Grab RX and TX IRQs. Note that we also have RX_THRESHOLD and
- * MISC IRQs which are always kept disabled with this driver so
- * we will not request them.
- *
- * If anyone wants to implement support for those, make sure to
- * first request and append them to irqs_table array.
- */
- /* RX IRQ */
- irq = platform_get_irq(pdev, 1);
- if (irq < 0) {
- ret = irq;
- goto clean_ale_ret;
- }
- priv->irqs_table[0] = irq;
- ret = devm_request_irq(&pdev->dev, irq, cpsw_rx_interrupt,
- 0, dev_name(&pdev->dev), priv);
- if (ret < 0) {
- dev_err(priv->dev, "error attaching irq (%d)\n", ret);
- goto clean_ale_ret;
- }
- /* TX IRQ */
- irq = platform_get_irq(pdev, 2);
- if (irq < 0) {
- ret = irq;
- goto clean_ale_ret;
- }
- priv->irqs_table[1] = irq;
- ret = devm_request_irq(&pdev->dev, irq, cpsw_tx_interrupt,
- 0, dev_name(&pdev->dev), priv);
- if (ret < 0) {
- dev_err(priv->dev, "error attaching irq (%d)\n", ret);
- goto clean_ale_ret;
- }
- priv->num_irqs = 2;
- ndev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
- ndev->netdev_ops = &cpsw_netdev_ops;
- ndev->ethtool_ops = &cpsw_ethtool_ops;
- netif_napi_add(ndev, &priv->napi_rx, cpsw_rx_poll, CPSW_POLL_WEIGHT);
- netif_napi_add(ndev, &priv->napi_tx, cpsw_tx_poll, CPSW_POLL_WEIGHT);
- /* register the network device */
- SET_NETDEV_DEV(ndev, &pdev->dev);
- ret = register_netdev(ndev);
- if (ret) {
- dev_err(priv->dev, "error registering net device\n");
- ret = -ENODEV;
- goto clean_ale_ret;
- }
- cpsw_notice(priv, probe, "initialized device (regs %pa, irq %d)\n",
- &ss_res->start, ndev->irq);
- if (priv->data.dual_emac) {
- ret = cpsw_probe_dual_emac(pdev, priv);
- if (ret) {
- cpsw_err(priv, probe, "error probe slave 2 emac interface\n");
- goto clean_ale_ret;
- }
- }
- return 0;
- clean_ale_ret:
- cpsw_ale_destroy(priv->ale);
- clean_dma_ret:
- cpdma_chan_destroy(priv->txch);
- cpdma_chan_destroy(priv->rxch);
- cpdma_ctlr_destroy(priv->dma);
- clean_runtime_disable_ret:
- pm_runtime_disable(&pdev->dev);
- clean_ndev_ret:
- free_netdev(priv->ndev);
- return ret;
- }
- static int cpsw_remove_child_device(struct device *dev, void *c)
- {
- struct platform_device *pdev = to_platform_device(dev);
- of_device_unregister(pdev);
- return 0;
- }
- static int cpsw_remove(struct platform_device *pdev)
- {
- struct net_device *ndev = platform_get_drvdata(pdev);
- struct cpsw_priv *priv = netdev_priv(ndev);
- if (priv->data.dual_emac)
- unregister_netdev(cpsw_get_slave_ndev(priv, 1));
- unregister_netdev(ndev);
- cpsw_ale_destroy(priv->ale);
- cpdma_chan_destroy(priv->txch);
- cpdma_chan_destroy(priv->rxch);
- cpdma_ctlr_destroy(priv->dma);
- pm_runtime_disable(&pdev->dev);
- device_for_each_child(&pdev->dev, NULL, cpsw_remove_child_device);
- if (priv->data.dual_emac)
- free_netdev(cpsw_get_slave_ndev(priv, 1));
- free_netdev(ndev);
- return 0;
- }
- #ifdef CONFIG_PM_SLEEP
- static int cpsw_suspend(struct device *dev)
- {
- struct platform_device *pdev = to_platform_device(dev);
- struct net_device *ndev = platform_get_drvdata(pdev);
- struct cpsw_priv *priv = netdev_priv(ndev);
- if (priv->data.dual_emac) {
- int i;
- for (i = 0; i < priv->data.slaves; i++) {
- if (netif_running(priv->slaves[i].ndev))
- cpsw_ndo_stop(priv->slaves[i].ndev);
- soft_reset_slave(priv->slaves + i);
- }
- } else {
- if (netif_running(ndev))
- cpsw_ndo_stop(ndev);
- for_each_slave(priv, soft_reset_slave);
- }
- pm_runtime_put_sync(&pdev->dev);
- /* Select sleep pin state */
- pinctrl_pm_select_sleep_state(&pdev->dev);
- return 0;
- }
- static int cpsw_resume(struct device *dev)
- {
- struct platform_device *pdev = to_platform_device(dev);
- struct net_device *ndev = platform_get_drvdata(pdev);
- struct cpsw_priv *priv = netdev_priv(ndev);
- pm_runtime_get_sync(&pdev->dev);
- /* Select default pin state */
- pinctrl_pm_select_default_state(&pdev->dev);
- if (priv->data.dual_emac) {
- int i;
- for (i = 0; i < priv->data.slaves; i++) {
- if (netif_running(priv->slaves[i].ndev))
- cpsw_ndo_open(priv->slaves[i].ndev);
- }
- } else {
- if (netif_running(ndev))
- cpsw_ndo_open(ndev);
- }
- return 0;
- }
- #endif
- static SIMPLE_DEV_PM_OPS(cpsw_pm_ops, cpsw_suspend, cpsw_resume);
- static struct platform_driver cpsw_driver = {
- .driver = {
- .name = "cpsw",
- .pm = &cpsw_pm_ops,
- .of_match_table = cpsw_of_mtable,
- },
- .probe = cpsw_probe,
- .remove = cpsw_remove,
- };
- module_platform_driver(cpsw_driver);
- MODULE_LICENSE("GPL");
- MODULE_AUTHOR("Cyril Chemparathy <cyril@ti.com>");
- MODULE_AUTHOR("Mugunthan V N <mugunthanvnm@ti.com>");
- MODULE_DESCRIPTION("TI CPSW Ethernet driver");
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