1 // SPDX-License-Identifier: GPL-2.0+
4 * Dirk Eibach, Guntermann & Drunck GmbH, dirk.eibach@gdsys.cc
15 MIICMD_WAIT_FOR_VALUE,
27 * verify we are talking to a 88e1518
29 struct mii_setupcmd verify_88e1518[] = {
30 { MIICMD_SET, 22, 0x0000 },
31 { MIICMD_VERIFY_VALUE, 2, 0x0141, 0xffff },
32 { MIICMD_VERIFY_VALUE, 3, 0x0dd0, 0xfff0 },
36 * workaround for erratum mentioned in 88E1518 release notes
38 struct mii_setupcmd fixup_88e1518[] = {
39 { MIICMD_SET, 22, 0x00ff },
40 { MIICMD_SET, 17, 0x214b },
41 { MIICMD_SET, 16, 0x2144 },
42 { MIICMD_SET, 17, 0x0c28 },
43 { MIICMD_SET, 16, 0x2146 },
44 { MIICMD_SET, 17, 0xb233 },
45 { MIICMD_SET, 16, 0x214d },
46 { MIICMD_SET, 17, 0xcc0c },
47 { MIICMD_SET, 16, 0x2159 },
48 { MIICMD_SET, 22, 0x00fb },
49 { MIICMD_SET, 7, 0xc00d },
50 { MIICMD_SET, 22, 0x0000 },
54 * default initialization:
55 * - set RGMII receive timing to "receive clock transition when data stable"
56 * - set RGMII transmit timing to "transmit clock internally delayed"
57 * - set RGMII output impedance target to 78,8 Ohm
58 * - run output impedance calibration
59 * - set autonegotiation advertise to 1000FD only
61 struct mii_setupcmd default_88e1518[] = {
62 { MIICMD_SET, 22, 0x0002 },
63 { MIICMD_MODIFY, 21, 0x0030, 0x0030 },
64 { MIICMD_MODIFY, 25, 0x0000, 0x0003 },
65 { MIICMD_MODIFY, 24, 0x8000, 0x8000 },
66 { MIICMD_WAIT_FOR_VALUE, 24, 0x4000, 0x4000, 2000 },
67 { MIICMD_SET, 22, 0x0000 },
68 { MIICMD_MODIFY, 4, 0x0000, 0x01e0 },
69 { MIICMD_MODIFY, 9, 0x0200, 0x0300 },
73 * turn off CLK125 for PHY daughterboard
75 struct mii_setupcmd ch1fix_88e1518[] = {
76 { MIICMD_SET, 22, 0x0002 },
77 { MIICMD_MODIFY, 16, 0x0006, 0x0006 },
78 { MIICMD_SET, 22, 0x0000 },
82 * perform copper software reset
84 struct mii_setupcmd swreset_88e1518[] = {
85 { MIICMD_SET, 22, 0x0000 },
86 { MIICMD_MODIFY, 0, 0x8000, 0x8000 },
87 { MIICMD_WAIT_FOR_VALUE, 0, 0x0000, 0x8000, 2000 },
91 * special one for 88E1514:
92 * Force SGMII to Copper mode
94 struct mii_setupcmd mii_to_copper_88e1514[] = {
95 { MIICMD_SET, 22, 0x0012 },
96 { MIICMD_MODIFY, 20, 0x0001, 0x0007 },
97 { MIICMD_MODIFY, 20, 0x8000, 0x8000 },
98 { MIICMD_SET, 22, 0x0000 },
102 * turn off SGMII auto-negotiation
104 struct mii_setupcmd sgmii_autoneg_off_88e1518[] = {
105 { MIICMD_SET, 22, 0x0001 },
106 { MIICMD_MODIFY, 0, 0x0000, 0x1000 },
107 { MIICMD_MODIFY, 0, 0x8000, 0x8000 },
108 { MIICMD_SET, 22, 0x0000 },
112 * invert LED2 polarity
114 struct mii_setupcmd invert_led2_88e1514[] = {
115 { MIICMD_SET, 22, 0x0003 },
116 { MIICMD_MODIFY, 17, 0x0030, 0x0010 },
117 { MIICMD_SET, 22, 0x0000 },
120 static int process_setupcmd(const char *bus, unsigned char addr,
121 struct mii_setupcmd *setupcmd)
124 u8 reg = setupcmd->reg;
125 u16 data = setupcmd->data;
126 u16 mask = setupcmd->mask;
127 u32 timeout = setupcmd->timeout;
131 debug("mii %s:%u reg %2u ", bus, addr, reg);
133 switch (setupcmd->token) {
135 res = miiphy_read(bus, addr, reg, &orig_data);
138 debug("is %04x. (value %04x mask %04x) ", orig_data, data,
140 data = (orig_data & ~mask) | (data & mask);
143 debug("=> %04x\n", data);
144 res = miiphy_write(bus, addr, reg, data);
146 case MIICMD_VERIFY_VALUE:
147 res = miiphy_read(bus, addr, reg, &orig_data);
150 if ((orig_data & mask) != (data & mask))
152 debug("(value %04x mask %04x) == %04x? %s\n", data, mask,
153 orig_data, res ? "FAIL" : "PASS");
155 case MIICMD_WAIT_FOR_VALUE:
157 start = get_timer(0);
158 while ((res != 0) && (get_timer(start) < timeout)) {
159 res = miiphy_read(bus, addr, reg, &orig_data);
162 if ((orig_data & mask) != (data & mask))
165 debug("(value %04x mask %04x) == %04x? %s after %lu ms\n", data,
166 mask, orig_data, res ? "FAIL" : "PASS",
177 static int process_setup(const char *bus, unsigned char addr,
178 struct mii_setupcmd *setupcmd, unsigned int count)
183 for (k = 0; k < count; ++k) {
184 res = process_setupcmd(bus, addr, &setupcmd[k]);
186 printf("mii cmd %u on bus %s addr %u failed, aborting setup\n",
187 setupcmd[k].token, bus, addr);
195 int setup_88e1518(const char *bus, unsigned char addr)
199 res = process_setup(bus, addr,
200 verify_88e1518, ARRAY_SIZE(verify_88e1518));
204 res = process_setup(bus, addr,
205 fixup_88e1518, ARRAY_SIZE(fixup_88e1518));
209 res = process_setup(bus, addr,
210 default_88e1518, ARRAY_SIZE(default_88e1518));
215 res = process_setup(bus, addr,
216 ch1fix_88e1518, ARRAY_SIZE(ch1fix_88e1518));
221 res = process_setup(bus, addr,
222 swreset_88e1518, ARRAY_SIZE(swreset_88e1518));
229 int setup_88e1514(const char *bus, unsigned char addr)
233 res = process_setup(bus, addr,
234 verify_88e1518, ARRAY_SIZE(verify_88e1518));
238 res = process_setup(bus, addr,
239 fixup_88e1518, ARRAY_SIZE(fixup_88e1518));
243 res = process_setup(bus, addr,
244 mii_to_copper_88e1514,
245 ARRAY_SIZE(mii_to_copper_88e1514));
249 res = process_setup(bus, addr,
250 sgmii_autoneg_off_88e1518,
251 ARRAY_SIZE(sgmii_autoneg_off_88e1518));
255 res = process_setup(bus, addr,
257 ARRAY_SIZE(invert_led2_88e1514));
261 res = process_setup(bus, addr,
262 default_88e1518, ARRAY_SIZE(default_88e1518));
267 res = process_setup(bus, addr,
268 ch1fix_88e1518, ARRAY_SIZE(ch1fix_88e1518));
273 res = process_setup(bus, addr,
274 swreset_88e1518, ARRAY_SIZE(swreset_88e1518));