195711cd5SPawel Dembicki /* SPDX-License-Identifier: GPL-2.0 */ 295711cd5SPawel Dembicki #include <linux/device.h> 395711cd5SPawel Dembicki #include <linux/etherdevice.h> 495711cd5SPawel Dembicki #include <linux/gpio/driver.h> 595711cd5SPawel Dembicki 66cc5280aSPawel Dembicki /* The VSC7395 switch chips have 5+1 ports which means 5 ordinary ports and 76cc5280aSPawel Dembicki * a sixth CPU port facing the processor with an RGMII interface. These ports 86cc5280aSPawel Dembicki * are numbered 0..4 and 6, so they leave a "hole" in the port map for port 5, 96cc5280aSPawel Dembicki * which is invalid. 106cc5280aSPawel Dembicki * 116cc5280aSPawel Dembicki * The VSC7398 has 8 ports, port 7 is again the CPU port. 126cc5280aSPawel Dembicki * 136cc5280aSPawel Dembicki * We allocate 8 ports and avoid access to the nonexistent ports. 146cc5280aSPawel Dembicki */ 156cc5280aSPawel Dembicki #define VSC73XX_MAX_NUM_PORTS 8 166cc5280aSPawel Dembicki 1795711cd5SPawel Dembicki /** 18*96944aafSPawel Dembicki * struct vsc73xx - VSC73xx state container: main data structure 19*96944aafSPawel Dembicki * @dev: The device pointer 20*96944aafSPawel Dembicki * @reset: The descriptor for the GPIO line tied to the reset pin 21*96944aafSPawel Dembicki * @ds: Pointer to the DSA core structure 22*96944aafSPawel Dembicki * @gc: Main structure of the GPIO controller 23*96944aafSPawel Dembicki * @chipid: Storage for the Chip ID value read from the CHIPID register of the 24*96944aafSPawel Dembicki * switch 25*96944aafSPawel Dembicki * @addr: MAC address used in flow control frames 26*96944aafSPawel Dembicki * @ops: Structure with hardware-dependent operations 27*96944aafSPawel Dembicki * @priv: Pointer to the configuration interface structure 2895711cd5SPawel Dembicki */ 2995711cd5SPawel Dembicki struct vsc73xx { 3095711cd5SPawel Dembicki struct device *dev; 3195711cd5SPawel Dembicki struct gpio_desc *reset; 3295711cd5SPawel Dembicki struct dsa_switch *ds; 3395711cd5SPawel Dembicki struct gpio_chip gc; 3495711cd5SPawel Dembicki u16 chipid; 3595711cd5SPawel Dembicki u8 addr[ETH_ALEN]; 3695711cd5SPawel Dembicki const struct vsc73xx_ops *ops; 3795711cd5SPawel Dembicki void *priv; 3895711cd5SPawel Dembicki }; 3995711cd5SPawel Dembicki 40*96944aafSPawel Dembicki /** 41*96944aafSPawel Dembicki * struct vsc73xx_ops - VSC73xx methods container 42*96944aafSPawel Dembicki * @read: Method for register reading over the hardware-dependent interface 43*96944aafSPawel Dembicki * @write: Method for register writing over the hardware-dependent interface 44*96944aafSPawel Dembicki */ 4595711cd5SPawel Dembicki struct vsc73xx_ops { 4695711cd5SPawel Dembicki int (*read)(struct vsc73xx *vsc, u8 block, u8 subblock, u8 reg, 4795711cd5SPawel Dembicki u32 *val); 4895711cd5SPawel Dembicki int (*write)(struct vsc73xx *vsc, u8 block, u8 subblock, u8 reg, 4995711cd5SPawel Dembicki u32 val); 5095711cd5SPawel Dembicki }; 5195711cd5SPawel Dembicki 5295711cd5SPawel Dembicki int vsc73xx_is_addr_valid(u8 block, u8 subblock); 5395711cd5SPawel Dembicki int vsc73xx_probe(struct vsc73xx *vsc); 54e99fa423SUwe Kleine-König void vsc73xx_remove(struct vsc73xx *vsc); 550650bf52SVladimir Oltean void vsc73xx_shutdown(struct vsc73xx *vsc); 56