xref: /openbmc/u-boot/drivers/net/fm/init.c (revision dfe6f4d6)
1 /*
2  * Copyright 2011 Freescale Semiconductor, Inc.
3  *
4  * SPDX-License-Identifier:	GPL-2.0+
5  */
6 #include <common.h>
7 #include <asm/io.h>
8 #include <asm/fsl_serdes.h>
9 
10 #include "fm.h"
11 
12 struct fm_eth_info fm_info[] = {
13 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 1)
14 	FM_DTSEC_INFO_INITIALIZER(1, 1),
15 #endif
16 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 2)
17 	FM_DTSEC_INFO_INITIALIZER(1, 2),
18 #endif
19 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 3)
20 	FM_DTSEC_INFO_INITIALIZER(1, 3),
21 #endif
22 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 4)
23 	FM_DTSEC_INFO_INITIALIZER(1, 4),
24 #endif
25 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 5)
26 	FM_DTSEC_INFO_INITIALIZER(1, 5),
27 #endif
28 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 6)
29 	FM_DTSEC_INFO_INITIALIZER(1, 6),
30 #endif
31 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 7)
32 	FM_DTSEC_INFO_INITIALIZER(1, 9),
33 #endif
34 #if (CONFIG_SYS_NUM_FM1_DTSEC >= 8)
35 	FM_DTSEC_INFO_INITIALIZER(1, 10),
36 #endif
37 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 1)
38 	FM_DTSEC_INFO_INITIALIZER(2, 1),
39 #endif
40 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 2)
41 	FM_DTSEC_INFO_INITIALIZER(2, 2),
42 #endif
43 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 3)
44 	FM_DTSEC_INFO_INITIALIZER(2, 3),
45 #endif
46 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 4)
47 	FM_DTSEC_INFO_INITIALIZER(2, 4),
48 #endif
49 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 5)
50 	FM_DTSEC_INFO_INITIALIZER(2, 5),
51 #endif
52 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 6)
53 	FM_DTSEC_INFO_INITIALIZER(2, 6),
54 #endif
55 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 7)
56 	FM_DTSEC_INFO_INITIALIZER(2, 9),
57 #endif
58 #if (CONFIG_SYS_NUM_FM2_DTSEC >= 8)
59 	FM_DTSEC_INFO_INITIALIZER(2, 10),
60 #endif
61 #if (CONFIG_SYS_NUM_FM1_10GEC >= 1)
62 	FM_TGEC_INFO_INITIALIZER(1, 1),
63 #endif
64 #if (CONFIG_SYS_NUM_FM1_10GEC >= 2)
65 	FM_TGEC_INFO_INITIALIZER(1, 2),
66 #endif
67 #if (CONFIG_SYS_NUM_FM1_10GEC >= 3)
68 	FM_TGEC_INFO_INITIALIZER2(1, 3),
69 #endif
70 #if (CONFIG_SYS_NUM_FM1_10GEC >= 4)
71 	FM_TGEC_INFO_INITIALIZER2(1, 4),
72 #endif
73 #if (CONFIG_SYS_NUM_FM2_10GEC >= 1)
74 	FM_TGEC_INFO_INITIALIZER(2, 1),
75 #endif
76 #if (CONFIG_SYS_NUM_FM2_10GEC >= 2)
77 	FM_TGEC_INFO_INITIALIZER(2, 2),
78 #endif
79 };
80 
81 int fm_standard_init(bd_t *bis)
82 {
83 	int i;
84 	struct ccsr_fman *reg;
85 
86 	reg = (void *)CONFIG_SYS_FSL_FM1_ADDR;
87 	if (fm_init_common(0, reg))
88 		return 0;
89 
90 	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
91 		if ((fm_info[i].enabled) && (fm_info[i].index == 1))
92 			fm_eth_initialize(reg, &fm_info[i]);
93 	}
94 
95 #if (CONFIG_SYS_NUM_FMAN == 2)
96 	reg = (void *)CONFIG_SYS_FSL_FM2_ADDR;
97 	if (fm_init_common(1, reg))
98 		return 0;
99 
100 	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
101 		if ((fm_info[i].enabled) && (fm_info[i].index == 2))
102 			fm_eth_initialize(reg, &fm_info[i]);
103 	}
104 #endif
105 
106 	return 1;
107 }
108 
109 /* simple linear search to map from port to array index */
110 static int fm_port_to_index(enum fm_port port)
111 {
112 	int i;
113 
114 	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
115 		if (fm_info[i].port == port)
116 			return i;
117 	}
118 
119 	return -1;
120 }
121 
122 /*
123  * Determine if an interface is actually active based on HW config
124  * we expect fman_port_enet_if() to report PHY_INTERFACE_MODE_NONE if
125  * the interface is not active based on HW cfg of the SoC
126  */
127 void fman_enet_init(void)
128 {
129 	int i;
130 
131 	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
132 		phy_interface_t enet_if;
133 
134 		enet_if = fman_port_enet_if(fm_info[i].port);
135 		if (enet_if != PHY_INTERFACE_MODE_NONE) {
136 			fm_info[i].enabled = 1;
137 			fm_info[i].enet_if = enet_if;
138 		} else {
139 			fm_info[i].enabled = 0;
140 		}
141 	}
142 
143 	return ;
144 }
145 
146 void fm_disable_port(enum fm_port port)
147 {
148 	int i = fm_port_to_index(port);
149 
150 	if (i == -1)
151 		return;
152 
153 	fm_info[i].enabled = 0;
154 	fman_disable_port(port);
155 }
156 
157 void fm_enable_port(enum fm_port port)
158 {
159 	int i = fm_port_to_index(port);
160 
161 	if (i == -1)
162 		return;
163 
164 	fm_info[i].enabled = 1;
165 	fman_enable_port(port);
166 }
167 
168 void fm_info_set_mdio(enum fm_port port, struct mii_dev *bus)
169 {
170 	int i = fm_port_to_index(port);
171 
172 	if (i == -1)
173 		return;
174 
175 	fm_info[i].bus = bus;
176 }
177 
178 void fm_info_set_phy_address(enum fm_port port, int address)
179 {
180 	int i = fm_port_to_index(port);
181 
182 	if (i == -1)
183 		return;
184 
185 	fm_info[i].phy_addr = address;
186 }
187 
188 /*
189  * Returns the PHY address for a given Fman port
190  *
191  * The port must be set via a prior call to fm_info_set_phy_address().
192  * A negative error code is returned if the port is invalid.
193  */
194 int fm_info_get_phy_address(enum fm_port port)
195 {
196 	int i = fm_port_to_index(port);
197 
198 	if (i == -1)
199 		return -1;
200 
201 	return fm_info[i].phy_addr;
202 }
203 
204 /*
205  * Returns the type of the data interface between the given MAC and its PHY.
206  * This is typically determined by the RCW.
207  */
208 phy_interface_t fm_info_get_enet_if(enum fm_port port)
209 {
210 	int i = fm_port_to_index(port);
211 
212 	if (i == -1)
213 		return PHY_INTERFACE_MODE_NONE;
214 
215 	if (fm_info[i].enabled)
216 		return fm_info[i].enet_if;
217 
218 	return PHY_INTERFACE_MODE_NONE;
219 }
220 
221 static void
222 __def_board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
223 				enum fm_port port, int offset)
224 {
225 	return ;
226 }
227 
228 void board_ft_fman_fixup_port(void *blob, char * prop, phys_addr_t pa,
229 				enum fm_port port, int offset)
230 	 __attribute__((weak, alias("__def_board_ft_fman_fixup_port")));
231 
232 static void ft_fixup_port(void *blob, struct fm_eth_info *info, char *prop)
233 {
234 	int off;
235 	uint32_t ph;
236 	phys_addr_t paddr = CONFIG_SYS_CCSRBAR_PHYS + info->compat_offset;
237 	u64 dtsec1_addr = (u64)CONFIG_SYS_CCSRBAR_PHYS +
238 				CONFIG_SYS_FSL_FM1_DTSEC1_OFFSET;
239 
240 	off = fdt_node_offset_by_compat_reg(blob, prop, paddr);
241 
242 	if (info->enabled) {
243 		fdt_fixup_phy_connection(blob, off, info->enet_if);
244 		board_ft_fman_fixup_port(blob, prop, paddr, info->port, off);
245 		return ;
246 	}
247 
248 #ifdef CONFIG_SYS_FMAN_V3
249 	/*
250 	 * Physically FM1_DTSEC9 and FM1_10GEC1 use the same dual-role MAC, when
251 	 * FM1_10GEC1 is enabled and  FM1_DTSEC9 is disabled, ensure that the
252 	 * dual-role MAC is not disabled, ditto for other dual-role MACs.
253 	 */
254 	if (((info->port == FM1_DTSEC9) && (PORT_IS_ENABLED(FM1_10GEC1)))  ||
255 	    ((info->port == FM1_DTSEC10) && (PORT_IS_ENABLED(FM1_10GEC2))) ||
256 	    ((info->port == FM1_DTSEC1) && (PORT_IS_ENABLED(FM1_10GEC3)))  ||
257 	    ((info->port == FM1_DTSEC2) && (PORT_IS_ENABLED(FM1_10GEC4)))  ||
258 	    ((info->port == FM1_10GEC1) && (PORT_IS_ENABLED(FM1_DTSEC9)))  ||
259 	    ((info->port == FM1_10GEC2) && (PORT_IS_ENABLED(FM1_DTSEC10))) ||
260 	    ((info->port == FM1_10GEC3) && (PORT_IS_ENABLED(FM1_DTSEC1)))  ||
261 	    ((info->port == FM1_10GEC4) && (PORT_IS_ENABLED(FM1_DTSEC2)))
262 #if (CONFIG_SYS_NUM_FMAN == 2)
263 										||
264 	    ((info->port == FM2_DTSEC9) && (PORT_IS_ENABLED(FM2_10GEC1)))	||
265 	    ((info->port == FM2_DTSEC10) && (PORT_IS_ENABLED(FM2_10GEC2)))	||
266 	    ((info->port == FM2_10GEC1) && (PORT_IS_ENABLED(FM2_DTSEC9)))	||
267 	    ((info->port == FM2_10GEC2) && (PORT_IS_ENABLED(FM2_DTSEC10)))
268 #endif
269 	)
270 		return;
271 #endif
272 	/* board code might have caused offset to change */
273 	off = fdt_node_offset_by_compat_reg(blob, prop, paddr);
274 
275 	/* Don't disable FM1-DTSEC1 MAC as its used for MDIO */
276 	if (paddr != dtsec1_addr)
277 		fdt_status_disabled(blob, off); /* disable the MAC node */
278 
279 	/* disable the fsl,dpa-ethernet node that points to the MAC */
280 	ph = fdt_get_phandle(blob, off);
281 	do_fixup_by_prop(blob, "fsl,fman-mac", &ph, sizeof(ph),
282 		"status", "disabled", strlen("disabled") + 1, 1);
283 }
284 
285 void fdt_fixup_fman_ethernet(void *blob)
286 {
287 	int i;
288 
289 #ifdef CONFIG_SYS_FMAN_V3
290 	for (i = 0; i < ARRAY_SIZE(fm_info); i++)
291 		ft_fixup_port(blob, &fm_info[i], "fsl,fman-memac");
292 #else
293 	for (i = 0; i < ARRAY_SIZE(fm_info); i++) {
294 		if (fm_info[i].type == FM_ETH_1G_E)
295 			ft_fixup_port(blob, &fm_info[i], "fsl,fman-1g-mac");
296 		else
297 			ft_fixup_port(blob, &fm_info[i], "fsl,fman-10g-mac");
298 	}
299 #endif
300 }
301 
302 /*QSGMII Riser Card can work in SGMII mode, but the PHY address is different.
303  *This function scans which Riser Card being used(QSGMII or SGMII Riser Card),
304  *then set the correct PHY address
305  */
306 void set_sgmii_phy(struct mii_dev *bus, enum fm_port base_port,
307 		unsigned int port_num, int phy_base_addr)
308 {
309 	unsigned int regnum = 0;
310 	int qsgmii;
311 	int i;
312 	int phy_real_addr;
313 
314 	qsgmii = is_qsgmii_riser_card(bus, phy_base_addr, port_num, regnum);
315 
316 	if (!qsgmii)
317 		return;
318 
319 	for (i = base_port; i < base_port + port_num; i++) {
320 		if (fm_info_get_enet_if(i) == PHY_INTERFACE_MODE_SGMII) {
321 			phy_real_addr = phy_base_addr + i - base_port;
322 			fm_info_set_phy_address(i, phy_real_addr);
323 		}
324 	}
325 }
326 
327 /*to check whether qsgmii riser card is used*/
328 int is_qsgmii_riser_card(struct mii_dev *bus, int phy_base_addr,
329 		unsigned int port_num, unsigned regnum)
330 {
331 	int i;
332 	int val;
333 
334 	if (!bus)
335 		return 0;
336 
337 	for (i = phy_base_addr; i < phy_base_addr + port_num; i++) {
338 		val = bus->read(bus, i, MDIO_DEVAD_NONE, regnum);
339 		if (val != MIIM_TIMEOUT)
340 			return 1;
341 	}
342 
343 	return 0;
344 }
345