4   Provides Bus interface for MII registers
16 #include <linux/mii.h>
86 	unsigned int mii_address = priv->hw->mii.addr;  in stmmac_xgmac2_mdio_read()
87 	unsigned int mii_data = priv->hw->mii.data;  in stmmac_xgmac2_mdio_read()
97 	/* Wait until any existing MII operation is complete */  in stmmac_xgmac2_mdio_read()
118 	value |= (priv->clk_csr << priv->hw->mii.clk_csr_shift)  in stmmac_xgmac2_mdio_read()
119 		& priv->hw->mii.clk_csr_mask;  in stmmac_xgmac2_mdio_read()
122 	/* Wait until any existing MII operation is complete */  in stmmac_xgmac2_mdio_read()
129 	/* Set the MII address register to read */  in stmmac_xgmac2_mdio_read()
133 	/* Wait until any existing MII operation is complete */  in stmmac_xgmac2_mdio_read()
140 	/* Read the data from the MII data register */  in stmmac_xgmac2_mdio_read()
154 	unsigned int mii_address = priv->hw->mii.addr;  in stmmac_xgmac2_mdio_write()
155 	unsigned int mii_data = priv->hw->mii.data;  in stmmac_xgmac2_mdio_write()
165 	/* Wait until any existing MII operation is complete */  in stmmac_xgmac2_mdio_write()
186 	value |= (priv->clk_csr << priv->hw->mii.clk_csr_shift)  in stmmac_xgmac2_mdio_write()
187 		& priv->hw->mii.clk_csr_mask;  in stmmac_xgmac2_mdio_write()
191 	/* Wait until any existing MII operation is complete */  in stmmac_xgmac2_mdio_write()
198 	/* Set the MII address register to write */  in stmmac_xgmac2_mdio_write()
202 	/* Wait until any existing MII operation is complete */  in stmmac_xgmac2_mdio_write()
215  * @phyaddr: MII addr
216  * @phyreg: MII reg
217  * Description: it reads data from the MII register from within the phy device.
218  * For the 7111 GMAC, we must set the bit 0 in the MII address register while
226 	unsigned int mii_address = priv->hw->mii.addr;  in stmmac_mdio_read()
227 	unsigned int mii_data = priv->hw->mii.data;  in stmmac_mdio_read()
238 	value |= (phyaddr << priv->hw->mii.addr_shift)  in stmmac_mdio_read()
239 		& priv->hw->mii.addr_mask;  in stmmac_mdio_read()
240 	value |= (phyreg << priv->hw->mii.reg_shift) & priv->hw->mii.reg_mask;  in stmmac_mdio_read()
241 	value |= (priv->clk_csr << priv->hw->mii.clk_csr_shift)  in stmmac_mdio_read()
242 		& priv->hw->mii.clk_csr_mask;  in stmmac_mdio_read()
247 			value &= ~priv->hw->mii.reg_mask;  in stmmac_mdio_read()
249 			       priv->hw->mii.reg_shift) &  in stmmac_mdio_read()
250 			       priv->hw->mii.reg_mask;  in stmmac_mdio_read()
272 	/* Read the data from the MII data register */  in stmmac_mdio_read()
284  * @phyaddr: MII addr
285  * @phyreg: MII reg
287  * Description: it writes the data into the MII register from within the device.
294 	unsigned int mii_address = priv->hw->mii.addr;  in stmmac_mdio_write()
295 	unsigned int mii_data = priv->hw->mii.data;  in stmmac_mdio_write()
306 	value |= (phyaddr << priv->hw->mii.addr_shift)  in stmmac_mdio_write()
307 		& priv->hw->mii.addr_mask;  in stmmac_mdio_write()
308 	value |= (phyreg << priv->hw->mii.reg_shift) & priv->hw->mii.reg_mask;  in stmmac_mdio_write()
310 	value |= (priv->clk_csr << priv->hw->mii.clk_csr_shift)  in stmmac_mdio_write()
311 		& priv->hw->mii.clk_csr_mask;  in stmmac_mdio_write()
316 			value &= ~priv->hw->mii.reg_mask;  in stmmac_mdio_write()
318 			       priv->hw->mii.reg_shift) &  in stmmac_mdio_write()
319 			       priv->hw->mii.reg_mask;  in stmmac_mdio_write()
328 	/* Wait until any existing MII operation is complete */  in stmmac_mdio_write()
335 	/* Set the MII address register to write */  in stmmac_mdio_write()
339 	/* Wait until any existing MII operation is complete */  in stmmac_mdio_write()
352  * Description: reset the MII bus
359 	unsigned int mii_address = priv->hw->mii.addr;  in stmmac_mdio_reset()
438  * Description: it registers the MII bus
540 	priv->mii = new_bus;  in stmmac_mdio_register()
554  * Description: it unregisters the MII bus
560 	if (!priv->mii)  in stmmac_mdio_unregister()
568 	mdiobus_unregister(priv->mii);  in stmmac_mdio_unregister()
569 	priv->mii->priv = NULL;  in stmmac_mdio_unregister()
570 	mdiobus_free(priv->mii);  in stmmac_mdio_unregister()
571 	priv->mii = NULL;  in stmmac_mdio_unregister()