--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2018 MediaTek Inc.
+ * Author: Weijie Gao <weijie.gao@mediatek.com>
+ */
+
+#ifndef _MT753X_H_
+#define _MT753X_H_
+
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/netdevice.h>
+#include <linux/of_mdio.h>
+#include <linux/workqueue.h>
+#include <linux/gpio/consumer.h>
+
+#ifdef CONFIG_SWCONFIG
+#include <linux/switch.h>
+#endif
+
+#include "mt753x_vlan.h"
+
+#define MT753X_DFL_CPU_PORT 6
+#define MT753X_NUM_PHYS 5
+
+#define MT753X_DFL_SMI_ADDR 0x1f
+#define MT753X_SMI_ADDR_MASK 0x1f
+
+struct gsw_mt753x;
+
+enum mt753x_model {
+ MT7530 = 0x7530,
+ MT7531 = 0x7531
+};
+
+struct mt753x_port_cfg {
+ struct device_node *np;
+ phy_interface_t phy_mode;
+ u32 enabled: 1;
+ u32 force_link: 1;
+ u32 speed: 2;
+ u32 duplex: 1;
+};
+
+struct mt753x_phy {
+ struct gsw_mt753x *gsw;
+ struct net_device netdev;
+ struct phy_device *phydev;
+};
+
+struct gsw_mt753x {
+ u32 id;
+
+ struct device *dev;
+ struct mii_bus *host_bus;
+ struct mii_bus *gphy_bus;
+ struct mutex mii_lock; /* MII access lock */
+ u32 smi_addr;
+ u32 phy_base;
+ int direct_phy_access;
+
+ enum mt753x_model model;
+ const char *name;
+
+ struct mt753x_port_cfg port5_cfg;
+ struct mt753x_port_cfg port6_cfg;
+
+ int phy_status_poll;
+ struct mt753x_phy phys[MT753X_NUM_PHYS];
+
+ int phy_link_sts;
+
+ int irq;
+ int reset_pin;
+ struct work_struct irq_worker;
+
+#ifdef CONFIG_SWCONFIG
+ struct switch_dev swdev;
+ u32 cpu_port;
+#endif
+
+ int global_vlan_enable;
+ struct mt753x_vlan_entry vlan_entries[MT753X_NUM_VLANS];
+ struct mt753x_port_entry port_entries[MT753X_NUM_PORTS];
+
+ int (*mii_read)(struct gsw_mt753x *gsw, int phy, int reg);
+ void (*mii_write)(struct gsw_mt753x *gsw, int phy, int reg, u16 val);
+
+ int (*mmd_read)(struct gsw_mt753x *gsw, int addr, int devad, u16 reg);
+ void (*mmd_write)(struct gsw_mt753x *gsw, int addr, int devad, u16 reg,
+ u16 val);
+
+ struct list_head list;
+};
+
+struct chip_rev {
+ const char *name;
+ u32 rev;
+};
+
+struct mt753x_sw_id {
+ enum mt753x_model model;
+ int (*detect)(struct gsw_mt753x *gsw, struct chip_rev *crev);
+ int (*init)(struct gsw_mt753x *gsw);
+ int (*post_init)(struct gsw_mt753x *gsw);
+};
+
+extern struct list_head mt753x_devs;
+
+struct gsw_mt753x *mt753x_get_gsw(u32 id);
+struct gsw_mt753x *mt753x_get_first_gsw(void);
+void mt753x_put_gsw(void);
+void mt753x_lock_gsw(void);
+
+u32 mt753x_reg_read(struct gsw_mt753x *gsw, u32 reg);
+void mt753x_reg_write(struct gsw_mt753x *gsw, u32 reg, u32 val);
+
+int mt753x_mii_read(struct gsw_mt753x *gsw, int phy, int reg);
+void mt753x_mii_write(struct gsw_mt753x *gsw, int phy, int reg, u16 val);
+
+int mt753x_mmd_read(struct gsw_mt753x *gsw, int addr, int devad, u16 reg);
+void mt753x_mmd_write(struct gsw_mt753x *gsw, int addr, int devad, u16 reg,
+ u16 val);
+
+int mt753x_mmd_ind_read(struct gsw_mt753x *gsw, int addr, int devad, u16 reg);
+void mt753x_mmd_ind_write(struct gsw_mt753x *gsw, int addr, int devad, u16 reg,
+ u16 val);
+
+void mt753x_irq_worker(struct work_struct *work);
+void mt753x_irq_enable(struct gsw_mt753x *gsw);
+
+/* MDIO Indirect Access Registers */
+#define MII_MMD_ACC_CTL_REG 0x0d
+#define MMD_CMD_S 14
+#define MMD_CMD_M 0xc000
+#define MMD_DEVAD_S 0
+#define MMD_DEVAD_M 0x1f
+
+/* MMD_CMD: MMD commands */
+#define MMD_ADDR 0
+#define MMD_DATA 1
+
+#define MII_MMD_ADDR_DATA_REG 0x0e
+
+/* Procedure of MT753x Internal Register Access
+ *
+ * 1. Internal Register Address
+ *
+ * The MT753x has a 16-bit register address and each register is 32-bit.
+ * This means the lowest two bits are not used as the register address is
+ * 4-byte aligned.
+ *
+ * Rest of the valid bits are divided into two parts:
+ * Bit 15..6 is the Page address
+ * Bit 5..2 is the low address
+ *
+ * -------------------------------------------------------------------
+ * | 15 14 13 12 11 10 9 8 7 6 | 5 4 3 2 | 1 0 |
+ * |----------------------------------------|---------------|--------|
+ * | Page Address | Address | Unused |
+ * -------------------------------------------------------------------
+ *
+ * 2. MDIO access timing
+ *
+ * The MT753x uses the following MDIO timing for a single register read
+ *
+ * Phase 1: Write Page Address
+ * -------------------------------------------------------------------
+ * | ST | OP | PHY_ADDR | TYPE | RSVD | TA | RSVD | PAGE_ADDR |
+ * -------------------------------------------------------------------
+ * | 01 | 01 | 11111 | 1 | 1111 | xx | 00000 | REG_ADDR[15..6] |
+ * -------------------------------------------------------------------
+ *
+ * Phase 2: Write low Address & Read low word
+ * -------------------------------------------------------------------
+ * | ST | OP | PHY_ADDR | TYPE | LOW_ADDR | TA | DATA |
+ * -------------------------------------------------------------------
+ * | 01 | 10 | 11111 | 0 | REG_ADDR[5..2] | xx | DATA[15..0] |
+ * -------------------------------------------------------------------
+ *
+ * Phase 3: Read high word
+ * -------------------------------------------------------------------
+ * | ST | OP | PHY_ADDR | TYPE | RSVD | TA | DATA |
+ * -------------------------------------------------------------------
+ * | 01 | 10 | 11111 | 1 | 0000 | xx | DATA[31..16] |
+ * -------------------------------------------------------------------
+ *
+ * The MT753x uses the following MDIO timing for a single register write
+ *
+ * Phase 1: Write Page Address (The same as read)
+ *
+ * Phase 2: Write low Address and low word
+ * -------------------------------------------------------------------
+ * | ST | OP | PHY_ADDR | TYPE | LOW_ADDR | TA | DATA |
+ * -------------------------------------------------------------------
+ * | 01 | 01 | 11111 | 0 | REG_ADDR[5..2] | xx | DATA[15..0] |
+ * -------------------------------------------------------------------
+ *
+ * Phase 3: write high word
+ * -------------------------------------------------------------------
+ * | ST | OP | PHY_ADDR | TYPE | RSVD | TA | DATA |
+ * -------------------------------------------------------------------
+ * | 01 | 01 | 11111 | 1 | 0000 | xx | DATA[31..16] |
+ * -------------------------------------------------------------------
+ *
+ */
+
+/* Internal Register Address fields */
+#define MT753X_REG_PAGE_ADDR_S 6
+#define MT753X_REG_PAGE_ADDR_M 0xffc0
+#define MT753X_REG_ADDR_S 2
+#define MT753X_REG_ADDR_M 0x3c
+#endif /* _MT753X_H_ */
projects / openwrt / openwrt.git / blobdiff