ibm/emac/zmii.c

47 static inline int zmii_valid_mode(int mode)
49 	return  mode == PHY_INTERFACE_MODE_MII ||
50 		mode == PHY_INTERFACE_MODE_RMII ||
51 		mode == PHY_INTERFACE_MODE_SMII ||
52 		mode == PHY_INTERFACE_MODE_NA;
55 static inline const char *zmii_mode_name(int mode)
57 	switch (mode) {
69 static inline u32 zmii_mode_mask(int mode, int input)
71 	switch (mode) {
84 		phy_interface_t *mode)
89 	ZMII_DBG(dev, "init(%d, %d)" NL, input, *mode);
91 	if (!zmii_valid_mode(*mode)) {
102 	/* Autodetect ZMII mode if not specified.
104 	 * Please, always specify PHY mode in your board port to avoid
107 	if (dev->mode == PHY_INTERFACE_MODE_NA) {
108 		if (*mode == PHY_INTERFACE_MODE_NA) {
111 			ZMII_DBG(dev, "autodetecting mode, FER = 0x%08x" NL, r);
114 				dev->mode = PHY_INTERFACE_MODE_MII;
116 				dev->mode = PHY_INTERFACE_MODE_RMII;
118 				dev->mode = PHY_INTERFACE_MODE_SMII;
120 			dev->mode = *mode;
122 		printk(KERN_NOTICE "%pOF: bridge in %s mode\n",
124 		       zmii_mode_name(dev->mode));
126 		/* All inputs must use the same mode */
127 		if (*mode != PHY_INTERFACE_MODE_NA && *mode != dev->mode) {
129 			       "%pOF: invalid mode %d specified for input %d\n",
130 			       ofdev->dev.of_node, *mode, input);
136 	/* Report back correct PHY mode,
139 	*mode = dev->mode;
142 	out_be32(&p->fer, in_be32(&p->fer) | zmii_mode_mask(dev->mode, input));
205 		 in_be32(&dev->base->fer) & ~zmii_mode_mask(dev->mode, input));
248 	dev->mode = PHY_INTERFACE_MODE_NA;