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 6*6cc5280aSPawel Dembicki /* The VSC7395 switch chips have 5+1 ports which means 5 ordinary ports and 7*6cc5280aSPawel Dembicki * a sixth CPU port facing the processor with an RGMII interface. These ports 8*6cc5280aSPawel Dembicki * are numbered 0..4 and 6, so they leave a "hole" in the port map for port 5, 9*6cc5280aSPawel Dembicki * which is invalid. 10*6cc5280aSPawel Dembicki * 11*6cc5280aSPawel Dembicki * The VSC7398 has 8 ports, port 7 is again the CPU port. 12*6cc5280aSPawel Dembicki * 13*6cc5280aSPawel Dembicki * We allocate 8 ports and avoid access to the nonexistent ports. 14*6cc5280aSPawel Dembicki */ 15*6cc5280aSPawel Dembicki #define VSC73XX_MAX_NUM_PORTS 8 16*6cc5280aSPawel Dembicki 1795711cd5SPawel Dembicki /** 1895711cd5SPawel Dembicki * struct vsc73xx - VSC73xx state container 1995711cd5SPawel Dembicki */ 2095711cd5SPawel Dembicki struct vsc73xx { 2195711cd5SPawel Dembicki struct device *dev; 2295711cd5SPawel Dembicki struct gpio_desc *reset; 2395711cd5SPawel Dembicki struct dsa_switch *ds; 2495711cd5SPawel Dembicki struct gpio_chip gc; 2595711cd5SPawel Dembicki u16 chipid; 2695711cd5SPawel Dembicki u8 addr[ETH_ALEN]; 2795711cd5SPawel Dembicki const struct vsc73xx_ops *ops; 2895711cd5SPawel Dembicki void *priv; 2995711cd5SPawel Dembicki }; 3095711cd5SPawel Dembicki 3195711cd5SPawel Dembicki struct vsc73xx_ops { 3295711cd5SPawel Dembicki int (*read)(struct vsc73xx *vsc, u8 block, u8 subblock, u8 reg, 3395711cd5SPawel Dembicki u32 *val); 3495711cd5SPawel Dembicki int (*write)(struct vsc73xx *vsc, u8 block, u8 subblock, u8 reg, 3595711cd5SPawel Dembicki u32 val); 3695711cd5SPawel Dembicki }; 3795711cd5SPawel Dembicki 3895711cd5SPawel Dembicki int vsc73xx_is_addr_valid(u8 block, u8 subblock); 3995711cd5SPawel Dembicki int vsc73xx_probe(struct vsc73xx *vsc); 40e99fa423SUwe Kleine-König void vsc73xx_remove(struct vsc73xx *vsc); 410650bf52SVladimir Oltean void vsc73xx_shutdown(struct vsc73xx *vsc); 42