3  * Lynx PCS MDIO helpers
8 #include <linux/pcs-lynx.h>
10 #define SGMII_CLOCK_PERIOD_NS		8 /* PCS is clocked at 125 MHz */
26 	struct phylink_pcs pcs;  member
37 #define phylink_pcs_to_lynx(pl_pcs) container_of((pl_pcs), struct lynx_pcs, pcs)
38 #define lynx_to_phylink_pcs(lynx) (&(lynx)->pcs)
40 struct mdio_device *lynx_get_mdio_device(struct phylink_pcs *pcs)  in lynx_get_mdio_device()  argument
42 	struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs);  in lynx_get_mdio_device()
48 static void lynx_pcs_get_state_usxgmii(struct mdio_device *pcs,  in lynx_pcs_get_state_usxgmii()  argument
51 	struct mii_bus *bus = pcs->bus;  in lynx_pcs_get_state_usxgmii()
52 	int addr = pcs->addr;  in lynx_pcs_get_state_usxgmii()
71 static void lynx_pcs_get_state_2500basex(struct mdio_device *pcs,  in lynx_pcs_get_state_2500basex()  argument
76 	bmsr = mdiodev_read(pcs, MII_BMSR);  in lynx_pcs_get_state_2500basex()
77 	lpa = mdiodev_read(pcs, MII_LPA);  in lynx_pcs_get_state_2500basex()
93 static void lynx_pcs_get_state(struct phylink_pcs *pcs,  in lynx_pcs_get_state()  argument
96 	struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs);  in lynx_pcs_get_state()
125 static int lynx_pcs_config_giga(struct mdio_device *pcs, unsigned int mode,  in lynx_pcs_config_giga()  argument
135 		mdiodev_write(pcs, LINK_TIMER_LO, link_timer & 0xffff);  in lynx_pcs_config_giga()
136 		mdiodev_write(pcs, LINK_TIMER_HI, link_timer >> 16);  in lynx_pcs_config_giga()
146 			mdiodev_write(pcs, LINK_TIMER_LO, link_timer & 0xffff);  in lynx_pcs_config_giga()
147 			mdiodev_write(pcs, LINK_TIMER_HI, link_timer >> 16);  in lynx_pcs_config_giga()
151 	err = mdiodev_modify(pcs, IF_MODE,  in lynx_pcs_config_giga()
157 	return phylink_mii_c22_pcs_config(pcs, mode, interface, advertising);  in lynx_pcs_config_giga()
160 static int lynx_pcs_config_usxgmii(struct mdio_device *pcs, unsigned int mode,  in lynx_pcs_config_usxgmii()  argument
163 	struct mii_bus *bus = pcs->bus;  in lynx_pcs_config_usxgmii()
164 	int addr = pcs->addr;  in lynx_pcs_config_usxgmii()
167 		dev_err(&pcs->dev, "USXGMII only supports in-band AN for now\n");  in lynx_pcs_config_usxgmii()
178 static int lynx_pcs_config(struct phylink_pcs *pcs, unsigned int mode,  in lynx_pcs_config()  argument
183 	struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs);  in lynx_pcs_config()
210 static void lynx_pcs_an_restart(struct phylink_pcs *pcs)  in lynx_pcs_an_restart()  argument
212 	struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs);  in lynx_pcs_an_restart()
217 static void lynx_pcs_link_up_sgmii(struct mdio_device *pcs, unsigned int mode,  in lynx_pcs_link_up_sgmii()  argument
222 	/* The PCS needs to be configured manually only  in lynx_pcs_link_up_sgmii()
245 		dev_err(&pcs->dev, "Invalid PCS speed %d\n", speed);  in lynx_pcs_link_up_sgmii()
250 	mdiodev_modify(pcs, IF_MODE,  in lynx_pcs_link_up_sgmii()
271 static void lynx_pcs_link_up_2500basex(struct mdio_device *pcs,  in lynx_pcs_link_up_2500basex()  argument
278 		dev_err(&pcs->dev, "AN not supported for 2500BaseX\n");  in lynx_pcs_link_up_2500basex()
286 	mdiodev_modify(pcs, IF_MODE,  in lynx_pcs_link_up_2500basex()
291 static void lynx_pcs_link_up(struct phylink_pcs *pcs, unsigned int mode,  in lynx_pcs_link_up()  argument
295 	struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs);  in lynx_pcs_link_up()
331 	lynx->pcs.ops = &lynx_pcs_phylink_ops;  in lynx_pcs_create()
332 	lynx->pcs.poll = true;  in lynx_pcs_create()
338 void lynx_pcs_destroy(struct phylink_pcs *pcs)  in lynx_pcs_destroy()  argument
340 	struct lynx_pcs *lynx = phylink_pcs_to_lynx(pcs);  in lynx_pcs_destroy()