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kernel/linux-rt-4.4.41/drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c 7.4 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright (c) 2014-2015 Hisilicon Limited.
   *
   * 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.
   */
  
  #include "hns_dsaf_misc.h"
  #include "hns_dsaf_mac.h"
  #include "hns_dsaf_reg.h"
  #include "hns_dsaf_ppe.h"
  
  void hns_cpld_set_led(struct hns_mac_cb *mac_cb, int link_status,
  		      u16 speed, int data)
  {
  	int speed_reg = 0;
  	u8 value;
  
  	if (!mac_cb) {
  		pr_err("sfp_led_opt mac_dev is null!
  ");
  		return;
  	}
  	if (!mac_cb->cpld_vaddr) {
  		dev_err(mac_cb->dev, "mac_id=%d, cpld_vaddr is null !
  ",
  			mac_cb->mac_id);
  		return;
  	}
  
  	if (speed == MAC_SPEED_10000)
  		speed_reg = 1;
  
  	value = mac_cb->cpld_led_value;
  
  	if (link_status) {
  		dsaf_set_bit(value, DSAF_LED_LINK_B, link_status);
  		dsaf_set_field(value, DSAF_LED_SPEED_M,
  			       DSAF_LED_SPEED_S, speed_reg);
  		dsaf_set_bit(value, DSAF_LED_DATA_B, data);
  
  		if (value != mac_cb->cpld_led_value) {
  			dsaf_write_b(mac_cb->cpld_vaddr, value);
  			mac_cb->cpld_led_value = value;
  		}
  	} else {
  		dsaf_write_b(mac_cb->cpld_vaddr, CPLD_LED_DEFAULT_VALUE);
  		mac_cb->cpld_led_value = CPLD_LED_DEFAULT_VALUE;
  	}
  }
  
  void cpld_led_reset(struct hns_mac_cb *mac_cb)
  {
  	if (!mac_cb || !mac_cb->cpld_vaddr)
  		return;
  
  	dsaf_write_b(mac_cb->cpld_vaddr, CPLD_LED_DEFAULT_VALUE);
  	mac_cb->cpld_led_value = CPLD_LED_DEFAULT_VALUE;
  }
  
  int cpld_set_led_id(struct hns_mac_cb *mac_cb,
  		    enum hnae_led_state status)
  {
  	switch (status) {
  	case HNAE_LED_ACTIVE:
  		mac_cb->cpld_led_value = dsaf_read_b(mac_cb->cpld_vaddr);
  		dsaf_set_bit(mac_cb->cpld_led_value, DSAF_LED_ANCHOR_B,
  			     CPLD_LED_ON_VALUE);
  		dsaf_write_b(mac_cb->cpld_vaddr, mac_cb->cpld_led_value);
  		return 2;
  	case HNAE_LED_INACTIVE:
  		dsaf_set_bit(mac_cb->cpld_led_value, DSAF_LED_ANCHOR_B,
  			     CPLD_LED_DEFAULT_VALUE);
  		dsaf_write_b(mac_cb->cpld_vaddr, mac_cb->cpld_led_value);
  		break;
  	default:
  		break;
  	}
  
  	return 0;
  }
  
  #define RESET_REQ_OR_DREQ 1
  
  void hns_dsaf_rst(struct dsaf_device *dsaf_dev, u32 val)
  {
  	u32 xbar_reg_addr;
  	u32 nt_reg_addr;
  
  	if (!val) {
  		xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_REQ_REG;
  		nt_reg_addr = DSAF_SUB_SC_NT_RESET_REQ_REG;
  	} else {
  		xbar_reg_addr = DSAF_SUB_SC_XBAR_RESET_DREQ_REG;
  		nt_reg_addr = DSAF_SUB_SC_NT_RESET_DREQ_REG;
  	}
  
  	dsaf_write_reg(dsaf_dev->sc_base, xbar_reg_addr,
  		       RESET_REQ_OR_DREQ);
  	dsaf_write_reg(dsaf_dev->sc_base, nt_reg_addr,
  		       RESET_REQ_OR_DREQ);
  }
  
  void hns_dsaf_xge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port, u32 val)
  {
  	u32 reg_val = 0;
  	u32 reg_addr;
  
  	if (port >= DSAF_XGE_NUM)
  		return;
  
  	reg_val |= RESET_REQ_OR_DREQ;
  	reg_val |= 0x2082082 << port;
  
  	if (val == 0)
  		reg_addr = DSAF_SUB_SC_XGE_RESET_REQ_REG;
  	else
  		reg_addr = DSAF_SUB_SC_XGE_RESET_DREQ_REG;
  
  	dsaf_write_reg(dsaf_dev->sc_base, reg_addr, reg_val);
  }
  
  void hns_dsaf_xge_core_srst_by_port(struct dsaf_device *dsaf_dev,
  				    u32 port, u32 val)
  {
  	u32 reg_val = 0;
  	u32 reg_addr;
  
  	if (port >= DSAF_XGE_NUM)
  		return;
  
  	reg_val |= XGMAC_TRX_CORE_SRST_M << port;
  
  	if (val == 0)
  		reg_addr = DSAF_SUB_SC_XGE_RESET_REQ_REG;
  	else
  		reg_addr = DSAF_SUB_SC_XGE_RESET_DREQ_REG;
  
  	dsaf_write_reg(dsaf_dev->sc_base, reg_addr, reg_val);
  }
  
  void hns_dsaf_ge_srst_by_port(struct dsaf_device *dsaf_dev, u32 port, u32 val)
  {
  	u32 reg_val_1;
  	u32 reg_val_2;
  
  	if (port >= DSAF_GE_NUM)
  		return;
  
  	if (port < DSAF_SERVICE_NW_NUM) {
  		reg_val_1  = 0x1 << port;
  		reg_val_2  = 0x1041041 << port;
  
  		if (val == 0) {
  			dsaf_write_reg(dsaf_dev->sc_base,
  				       DSAF_SUB_SC_GE_RESET_REQ1_REG,
  				       reg_val_1);
  
  			dsaf_write_reg(dsaf_dev->sc_base,
  				       DSAF_SUB_SC_GE_RESET_REQ0_REG,
  				       reg_val_2);
  		} else {
  			dsaf_write_reg(dsaf_dev->sc_base,
  				       DSAF_SUB_SC_GE_RESET_DREQ0_REG,
  				       reg_val_2);
  
  			dsaf_write_reg(dsaf_dev->sc_base,
  				       DSAF_SUB_SC_GE_RESET_DREQ1_REG,
  				       reg_val_1);
  		}
  	} else {
  		reg_val_1 = 0x15540 << (port - 6);
  		reg_val_2 = 0x100 << (port - 6);
  
  		if (val == 0) {
  			dsaf_write_reg(dsaf_dev->sc_base,
  				       DSAF_SUB_SC_GE_RESET_REQ1_REG,
  				       reg_val_1);
  
  			dsaf_write_reg(dsaf_dev->sc_base,
  				       DSAF_SUB_SC_PPE_RESET_REQ_REG,
  				       reg_val_2);
  		} else {
  			dsaf_write_reg(dsaf_dev->sc_base,
  				       DSAF_SUB_SC_GE_RESET_DREQ1_REG,
  				       reg_val_1);
  
  			dsaf_write_reg(dsaf_dev->sc_base,
  				       DSAF_SUB_SC_PPE_RESET_DREQ_REG,
  				       reg_val_2);
  		}
  	}
  }
  
  void hns_ppe_srst_by_port(struct dsaf_device *dsaf_dev, u32 port, u32 val)
  {
  	u32 reg_val = 0;
  	u32 reg_addr;
  
  	reg_val |= RESET_REQ_OR_DREQ << port;
  
  	if (val == 0)
  		reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
  	else
  		reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;
  
  	dsaf_write_reg(dsaf_dev->sc_base, reg_addr, reg_val);
  }
  
  void hns_ppe_com_srst(struct ppe_common_cb *ppe_common, u32 val)
  {
  	int comm_index = ppe_common->comm_index;
  	struct dsaf_device *dsaf_dev = ppe_common->dsaf_dev;
  	u32 reg_val;
  	u32 reg_addr;
  
  	if (comm_index == HNS_DSAF_COMM_SERVICE_NW_IDX) {
  		reg_val = RESET_REQ_OR_DREQ;
  		if (val == 0)
  			reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_REQ_REG;
  		else
  			reg_addr = DSAF_SUB_SC_RCB_PPE_COM_RESET_DREQ_REG;
  
  	} else {
  		reg_val = 0x100 << (comm_index - 1);
  
  		if (val == 0)
  			reg_addr = DSAF_SUB_SC_PPE_RESET_REQ_REG;
  		else
  			reg_addr = DSAF_SUB_SC_PPE_RESET_DREQ_REG;
  	}
  
  	dsaf_write_reg(dsaf_dev->sc_base, reg_addr, reg_val);
  }
  
  /**
   * hns_mac_get_sds_mode - get phy ifterface form serdes mode
   * @mac_cb: mac control block
   * retuen phy interface
   */
  phy_interface_t hns_mac_get_phy_if(struct hns_mac_cb *mac_cb)
  {
  	u32 hilink3_mode;
  	u32 hilink4_mode;
  	void __iomem *sys_ctl_vaddr = mac_cb->sys_ctl_vaddr;
  	int dev_id = mac_cb->mac_id;
  	phy_interface_t phy_if = PHY_INTERFACE_MODE_NA;
  
  	hilink3_mode = dsaf_read_reg(sys_ctl_vaddr, HNS_MAC_HILINK3_REG);
  	hilink4_mode = dsaf_read_reg(sys_ctl_vaddr, HNS_MAC_HILINK4_REG);
  	if (dev_id >= 0 && dev_id <= 3) {
  		if (hilink4_mode == 0)
  			phy_if = PHY_INTERFACE_MODE_SGMII;
  		else
  			phy_if = PHY_INTERFACE_MODE_XGMII;
  	} else if (dev_id >= 4 && dev_id <= 5) {
  		if (hilink3_mode == 0)
  			phy_if = PHY_INTERFACE_MODE_SGMII;
  		else
  			phy_if = PHY_INTERFACE_MODE_XGMII;
  	} else {
  		phy_if = PHY_INTERFACE_MODE_SGMII;
  	}
  
  	dev_dbg(mac_cb->dev,
  		"hilink3_mode=%d, hilink4_mode=%d dev_id=%d, phy_if=%d
  ",
  		hilink3_mode, hilink4_mode, dev_id, phy_if);
  	return phy_if;
  }
  
  /**
   * hns_mac_config_sds_loopback - set loop back for serdes
   * @mac_cb: mac control block
   * retuen 0 == success
   */
  int hns_mac_config_sds_loopback(struct hns_mac_cb *mac_cb, u8 en)
  {
  	/* port 0-3 hilink4 base is serdes_vaddr + 0x00280000
  	 * port 4-7 hilink3 base is serdes_vaddr + 0x00200000
  	 */
  	u8 *base_addr = (u8 *)mac_cb->serdes_vaddr +
  		       (mac_cb->mac_id <= 3 ? 0x00280000 : 0x00200000);
  	const u8 lane_id[] = {
  		0,	/* mac 0 -> lane 0 */
  		1,	/* mac 1 -> lane 1 */
  		2,	/* mac 2 -> lane 2 */
  		3,	/* mac 3 -> lane 3 */
  		2,	/* mac 4 -> lane 2 */
  		3,	/* mac 5 -> lane 3 */
  		0,	/* mac 6 -> lane 0 */
  		1	/* mac 7 -> lane 1 */
  	};
  #define RX_CSR(lane, reg) ((0x4080 + (reg) * 0x0002 + (lane) * 0x0200) * 2)
  	u64 reg_offset = RX_CSR(lane_id[mac_cb->mac_id], 0);
  
  	int sfp_prsnt;
  	int ret = hns_mac_get_sfp_prsnt(mac_cb, &sfp_prsnt);
  
  	if (!mac_cb->phy_node) {
  		if (ret)
  			pr_info("please confirm sfp is present or not
  ");
  		else
  			if (!sfp_prsnt)
  				pr_info("no sfp in this eth
  ");
  	}
  
  	dsaf_set_reg_field(base_addr, reg_offset, 1ull << 10, 10, !!en);
  
  	return 0;
  }