net: hns: add attribute cpld_ctrl for dsaf port node

This patch adds attribute cpld_ctrl for dsaf port node, parses the syscon
for mac_cb from dts, and changes the method of access the cpld related
registers through syscon.

Signed-off-by: Daode Huang <[e-mail]>
Signed-off-by: Yisen Zhuang <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c

···
 
 	assert(handle);
 	mac_cb = hns_get_mac_cb(handle);
-	if (!mac_cb->cpld_vaddr)
+	if (!mac_cb->cpld_ctrl)
 		return;
 	hns_set_led_opt(mac_cb);
 }

drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c

···
 	}
 }
 
-int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
-{
-	if (!mac_cb->cpld_vaddr)
-		return -ENODEV;
-
-	*sfp_prsnt = !dsaf_read_b((u8 *)mac_cb->cpld_vaddr
-					+ MAC_SFP_PORT_OFFSET);
-
-	return 0;
-}
-
 void hns_mac_get_link_status(struct hns_mac_cb *mac_cb, u32 *link_status)
 {
 	struct mac_driver *mac_ctrl_drv;
···
 {
 	struct device_node *np = mac_cb->dev->of_node;
 	struct regmap *syscon;
+	u32 ret;
+
 	mac_cb->link = false;
 	mac_cb->half_duplex = false;
 	mac_cb->speed = mac_phy_to_speed[mac_cb->phy_if];
···
 		return -EINVAL;
 	}
 	mac_cb->serdes_ctrl = syscon;
+
+	syscon = syscon_node_to_regmap(
+			of_parse_phandle(to_of_node(mac_cb->fw_port),
+					 "cpld-syscon", 0));
+	if (IS_ERR_OR_NULL(syscon)) {
+		dev_dbg(mac_cb->dev, "no cpld-syscon found!\n");
+		mac_cb->cpld_ctrl = NULL;
+	} else {
+		mac_cb->cpld_ctrl = syscon;
+		ret = fwnode_property_read_u32(mac_cb->fw_port,
+					       "cpld-ctrl-reg",
+					       &mac_cb->cpld_ctrl_reg);
+		if (ret) {
+			dev_err(mac_cb->dev, "get cpld-ctrl-reg fail!\n");
+			return ret;
+		}
+	}
 	return 0;
 }
 
···
 	mac_cb->sys_ctl_vaddr =	dsaf_dev->sc_base;
 	mac_cb->serdes_vaddr = dsaf_dev->sds_base;
 
-	if (dsaf_dev->cpld_base && !HNS_DSAF_IS_DEBUG(dsaf_dev)) {
-		mac_cb->cpld_vaddr = dsaf_dev->cpld_base +
-			mac_cb->mac_id * CPLD_ADDR_PORT_OFFSET;
-		cpld_led_reset(mac_cb);
-	}
 	mac_cb->sfp_prsnt = 0;
 	mac_cb->txpkt_for_led = 0;
 	mac_cb->rxpkt_for_led = 0;
···
 	if (ret)
 		return ret;
 
+	cpld_led_reset(mac_cb);
 	mac_cb->vaddr = hns_mac_get_vaddr(dsaf_dev, mac_cb, mac_mode_idx);
 
 	return 0;
···
 int hns_cpld_led_set_id(struct hns_mac_cb *mac_cb,
 			enum hnae_led_state status)
 {
-	if (!mac_cb || !mac_cb->cpld_vaddr)
+	if (!mac_cb || !mac_cb->cpld_ctrl)
 		return 0;
 
 	return cpld_set_led_id(mac_cb, status);

drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h

···
 	struct mac_priv priv;
 	struct fwnode_handle *fw_port;
 	u8 __iomem *vaddr;
-	u8 __iomem *cpld_vaddr;
 	u8 __iomem *sys_ctl_vaddr;
 	u8 __iomem *serdes_vaddr;
 	struct regmap *serdes_ctrl;
+	struct regmap *cpld_ctrl;
+	u32 cpld_ctrl_reg;
 	struct mac_entry_idx addr_entry_idx[DSAF_MAX_VM_NUM];
 	u8 sfp_prsnt;
 	u8 cpld_led_value;

drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c

···
 		iounmap(dsaf_dev->sds_base);
 	if (dsaf_dev->sc_base)
 		iounmap(dsaf_dev->sc_base);
-	if (dsaf_dev->cpld_base)
-		iounmap(dsaf_dev->cpld_base);
 	return ret;
 }
 
···
 
 	if (dsaf_dev->sc_base)
 		iounmap(dsaf_dev->sc_base);
-
-	if (dsaf_dev->cpld_base)
-		iounmap(dsaf_dev->cpld_base);
 }
 
 /**

drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h

···
 	u8 __iomem *sds_base;
 	u8 __iomem *ppe_base;
 	u8 __iomem *io_base;
-	u8 __iomem *cpld_base;
 	struct regmap *sub_ctrl;
 	phys_addr_t ppe_paddr;
 

drivers/net/ethernet/hisilicon/hns/hns_dsaf_misc.c

···
 		pr_err("sfp_led_opt mac_dev is null!\n");
 		return;
 	}
-	if (!mac_cb->cpld_vaddr) {
-		dev_err(mac_cb->dev, "mac_id=%d, cpld_vaddr is null !\n",
+	if (!mac_cb->cpld_ctrl) {
+		dev_err(mac_cb->dev, "mac_id=%d, cpld syscon is null !\n",
 			mac_cb->mac_id);
 		return;
 	}
···
 		dsaf_set_bit(value, DSAF_LED_DATA_B, data);
 
 		if (value != mac_cb->cpld_led_value) {
-			dsaf_write_b(mac_cb->cpld_vaddr, value);
+			dsaf_write_syscon(mac_cb->cpld_ctrl,
+					  mac_cb->cpld_ctrl_reg, value);
 			mac_cb->cpld_led_value = value;
 		}
 	} else {
-		dsaf_write_b(mac_cb->cpld_vaddr, CPLD_LED_DEFAULT_VALUE);
+		dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
+				  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)
+	if (!mac_cb || !mac_cb->cpld_ctrl)
 		return;
 
-	dsaf_write_b(mac_cb->cpld_vaddr, CPLD_LED_DEFAULT_VALUE);
+	dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
+			  CPLD_LED_DEFAULT_VALUE);
 	mac_cb->cpld_led_value = CPLD_LED_DEFAULT_VALUE;
 }
 
···
 {
 	switch (status) {
 	case HNAE_LED_ACTIVE:
-		mac_cb->cpld_led_value = dsaf_read_b(mac_cb->cpld_vaddr);
+		mac_cb->cpld_led_value =
+			dsaf_read_syscon(mac_cb->cpld_ctrl,
+					 mac_cb->cpld_ctrl_reg);
 		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);
+		dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
+				  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);
+		dsaf_write_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg,
+				  mac_cb->cpld_led_value);
 		break;
 	default:
 		break;
···
 			phy_if = PHY_INTERFACE_MODE_SGMII;
 	}
 	return phy_if;
+}
+
+int hns_mac_get_sfp_prsnt(struct hns_mac_cb *mac_cb, int *sfp_prsnt)
+{
+	if (!mac_cb->cpld_ctrl)
+		return -ENODEV;
+
+	*sfp_prsnt = !dsaf_read_syscon(mac_cb->cpld_ctrl, mac_cb->cpld_ctrl_reg
+					+ MAC_SFP_PORT_OFFSET);
+
+	return 0;
 }
 
 /**