1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (C) 2017 Marvell
5 * Antoine Tenart <antoine.tenart@free-electrons.com>
9 #include <linux/iopoll.h>
10 #include <linux/mfd/syscon.h>
11 #include <linux/module.h>
12 #include <linux/phy/phy.h>
13 #include <linux/platform_device.h>
14 #include <linux/regmap.h>
16 /* Relative to priv->base */
17 #define MVEBU_COMPHY_SERDES_CFG0(n) (0x0 + (n) * 0x1000)
18 #define MVEBU_COMPHY_SERDES_CFG0_PU_PLL BIT(1)
19 #define MVEBU_COMPHY_SERDES_CFG0_GEN_RX(n) ((n) << 3)
20 #define MVEBU_COMPHY_SERDES_CFG0_GEN_TX(n) ((n) << 7)
21 #define MVEBU_COMPHY_SERDES_CFG0_PU_RX BIT(11)
22 #define MVEBU_COMPHY_SERDES_CFG0_PU_TX BIT(12)
23 #define MVEBU_COMPHY_SERDES_CFG0_HALF_BUS BIT(14)
24 #define MVEBU_COMPHY_SERDES_CFG1(n) (0x4 + (n) * 0x1000)
25 #define MVEBU_COMPHY_SERDES_CFG1_RESET BIT(3)
26 #define MVEBU_COMPHY_SERDES_CFG1_RX_INIT BIT(4)
27 #define MVEBU_COMPHY_SERDES_CFG1_CORE_RESET BIT(5)
28 #define MVEBU_COMPHY_SERDES_CFG1_RF_RESET BIT(6)
29 #define MVEBU_COMPHY_SERDES_CFG2(n) (0x8 + (n) * 0x1000)
30 #define MVEBU_COMPHY_SERDES_CFG2_DFE_EN BIT(4)
31 #define MVEBU_COMPHY_SERDES_STATUS0(n) (0x18 + (n) * 0x1000)
32 #define MVEBU_COMPHY_SERDES_STATUS0_TX_PLL_RDY BIT(2)
33 #define MVEBU_COMPHY_SERDES_STATUS0_RX_PLL_RDY BIT(3)
34 #define MVEBU_COMPHY_SERDES_STATUS0_RX_INIT BIT(4)
35 #define MVEBU_COMPHY_PWRPLL_CTRL(n) (0x804 + (n) * 0x1000)
36 #define MVEBU_COMPHY_PWRPLL_CTRL_RFREQ(n) ((n) << 0)
37 #define MVEBU_COMPHY_PWRPLL_PHY_MODE(n) ((n) << 5)
38 #define MVEBU_COMPHY_IMP_CAL(n) (0x80c + (n) * 0x1000)
39 #define MVEBU_COMPHY_IMP_CAL_TX_EXT(n) ((n) << 10)
40 #define MVEBU_COMPHY_IMP_CAL_TX_EXT_EN BIT(15)
41 #define MVEBU_COMPHY_DFE_RES(n) (0x81c + (n) * 0x1000)
42 #define MVEBU_COMPHY_DFE_RES_FORCE_GEN_TBL BIT(15)
43 #define MVEBU_COMPHY_COEF(n) (0x828 + (n) * 0x1000)
44 #define MVEBU_COMPHY_COEF_DFE_EN BIT(14)
45 #define MVEBU_COMPHY_COEF_DFE_CTRL BIT(15)
46 #define MVEBU_COMPHY_GEN1_S0(n) (0x834 + (n) * 0x1000)
47 #define MVEBU_COMPHY_GEN1_S0_TX_AMP(n) ((n) << 1)
48 #define MVEBU_COMPHY_GEN1_S0_TX_EMPH(n) ((n) << 7)
49 #define MVEBU_COMPHY_GEN1_S1(n) (0x838 + (n) * 0x1000)
50 #define MVEBU_COMPHY_GEN1_S1_RX_MUL_PI(n) ((n) << 0)
51 #define MVEBU_COMPHY_GEN1_S1_RX_MUL_PF(n) ((n) << 3)
52 #define MVEBU_COMPHY_GEN1_S1_RX_MUL_FI(n) ((n) << 6)
53 #define MVEBU_COMPHY_GEN1_S1_RX_MUL_FF(n) ((n) << 8)
54 #define MVEBU_COMPHY_GEN1_S1_RX_DFE_EN BIT(10)
55 #define MVEBU_COMPHY_GEN1_S1_RX_DIV(n) ((n) << 11)
56 #define MVEBU_COMPHY_GEN1_S2(n) (0x8f4 + (n) * 0x1000)
57 #define MVEBU_COMPHY_GEN1_S2_TX_EMPH(n) ((n) << 0)
58 #define MVEBU_COMPHY_GEN1_S2_TX_EMPH_EN BIT(4)
59 #define MVEBU_COMPHY_LOOPBACK(n) (0x88c + (n) * 0x1000)
60 #define MVEBU_COMPHY_LOOPBACK_DBUS_WIDTH(n) ((n) << 1)
61 #define MVEBU_COMPHY_VDD_CAL0(n) (0x908 + (n) * 0x1000)
62 #define MVEBU_COMPHY_VDD_CAL0_CONT_MODE BIT(15)
63 #define MVEBU_COMPHY_EXT_SELV(n) (0x914 + (n) * 0x1000)
64 #define MVEBU_COMPHY_EXT_SELV_RX_SAMPL(n) ((n) << 5)
65 #define MVEBU_COMPHY_MISC_CTRL0(n) (0x93c + (n) * 0x1000)
66 #define MVEBU_COMPHY_MISC_CTRL0_ICP_FORCE BIT(5)
67 #define MVEBU_COMPHY_MISC_CTRL0_REFCLK_SEL BIT(10)
68 #define MVEBU_COMPHY_RX_CTRL1(n) (0x940 + (n) * 0x1000)
69 #define MVEBU_COMPHY_RX_CTRL1_RXCLK2X_SEL BIT(11)
70 #define MVEBU_COMPHY_RX_CTRL1_CLK8T_EN BIT(12)
71 #define MVEBU_COMPHY_SPEED_DIV(n) (0x954 + (n) * 0x1000)
72 #define MVEBU_COMPHY_SPEED_DIV_TX_FORCE BIT(7)
73 #define MVEBU_SP_CALIB(n) (0x96c + (n) * 0x1000)
74 #define MVEBU_SP_CALIB_SAMPLER(n) ((n) << 8)
75 #define MVEBU_SP_CALIB_SAMPLER_EN BIT(12)
76 #define MVEBU_COMPHY_TX_SLEW_RATE(n) (0x974 + (n) * 0x1000)
77 #define MVEBU_COMPHY_TX_SLEW_RATE_EMPH(n) ((n) << 5)
78 #define MVEBU_COMPHY_TX_SLEW_RATE_SLC(n) ((n) << 10)
79 #define MVEBU_COMPHY_DLT_CTRL(n) (0x984 + (n) * 0x1000)
80 #define MVEBU_COMPHY_DLT_CTRL_DTL_FLOOP_EN BIT(2)
81 #define MVEBU_COMPHY_FRAME_DETECT0(n) (0xa14 + (n) * 0x1000)
82 #define MVEBU_COMPHY_FRAME_DETECT0_PATN(n) ((n) << 7)
83 #define MVEBU_COMPHY_FRAME_DETECT3(n) (0xa20 + (n) * 0x1000)
84 #define MVEBU_COMPHY_FRAME_DETECT3_LOST_TIMEOUT_EN BIT(12)
85 #define MVEBU_COMPHY_DME(n) (0xa28 + (n) * 0x1000)
86 #define MVEBU_COMPHY_DME_ETH_MODE BIT(7)
87 #define MVEBU_COMPHY_TRAINING0(n) (0xa68 + (n) * 0x1000)
88 #define MVEBU_COMPHY_TRAINING0_P2P_HOLD BIT(15)
89 #define MVEBU_COMPHY_TRAINING5(n) (0xaa4 + (n) * 0x1000)
90 #define MVEBU_COMPHY_TRAINING5_RX_TIMER(n) ((n) << 0)
91 #define MVEBU_COMPHY_TX_TRAIN_PRESET(n) (0xb1c + (n) * 0x1000)
92 #define MVEBU_COMPHY_TX_TRAIN_PRESET_16B_AUTO_EN BIT(8)
93 #define MVEBU_COMPHY_TX_TRAIN_PRESET_PRBS11 BIT(9)
94 #define MVEBU_COMPHY_GEN1_S3(n) (0xc40 + (n) * 0x1000)
95 #define MVEBU_COMPHY_GEN1_S3_FBCK_SEL BIT(9)
96 #define MVEBU_COMPHY_GEN1_S4(n) (0xc44 + (n) * 0x1000)
97 #define MVEBU_COMPHY_GEN1_S4_DFE_RES(n) ((n) << 8)
98 #define MVEBU_COMPHY_TX_PRESET(n) (0xc68 + (n) * 0x1000)
99 #define MVEBU_COMPHY_TX_PRESET_INDEX(n) ((n) << 0)
100 #define MVEBU_COMPHY_GEN1_S5(n) (0xd38 + (n) * 0x1000)
101 #define MVEBU_COMPHY_GEN1_S5_ICP(n) ((n) << 0)
103 /* Relative to priv->regmap */
104 #define MVEBU_COMPHY_CONF1(n) (0x1000 + (n) * 0x28)
105 #define MVEBU_COMPHY_CONF1_PWRUP BIT(1)
106 #define MVEBU_COMPHY_CONF1_USB_PCIE BIT(2) /* 0: Ethernet/SATA */
107 #define MVEBU_COMPHY_CONF6(n) (0x1014 + (n) * 0x28)
108 #define MVEBU_COMPHY_CONF6_40B BIT(18)
109 #define MVEBU_COMPHY_SELECTOR 0x1140
110 #define MVEBU_COMPHY_SELECTOR_PHY(n) ((n) * 0x4)
111 #define MVEBU_COMPHY_PIPE_SELECTOR 0x1144
112 #define MVEBU_COMPHY_PIPE_SELECTOR_PIPE(n) ((n) * 0x4)
114 #define MVEBU_COMPHY_LANES 6
115 #define MVEBU_COMPHY_PORTS 3
117 struct mvebu_comhy_conf {
124 #define MVEBU_COMPHY_CONF(_lane, _port, _mode, _mux) \
132 static const struct mvebu_comhy_conf mvebu_comphy_cp110_modes[] = {
134 MVEBU_COMPHY_CONF(0, 1, PHY_MODE_SGMII, 0x1),
135 MVEBU_COMPHY_CONF(0, 1, PHY_MODE_2500SGMII, 0x1),
137 MVEBU_COMPHY_CONF(1, 2, PHY_MODE_SGMII, 0x1),
138 MVEBU_COMPHY_CONF(1, 2, PHY_MODE_2500SGMII, 0x1),
140 MVEBU_COMPHY_CONF(2, 0, PHY_MODE_SGMII, 0x1),
141 MVEBU_COMPHY_CONF(2, 0, PHY_MODE_2500SGMII, 0x1),
142 MVEBU_COMPHY_CONF(2, 0, PHY_MODE_10GKR, 0x1),
144 MVEBU_COMPHY_CONF(3, 1, PHY_MODE_SGMII, 0x2),
145 MVEBU_COMPHY_CONF(3, 1, PHY_MODE_2500SGMII, 0x2),
147 MVEBU_COMPHY_CONF(4, 0, PHY_MODE_SGMII, 0x2),
148 MVEBU_COMPHY_CONF(4, 0, PHY_MODE_2500SGMII, 0x2),
149 MVEBU_COMPHY_CONF(4, 0, PHY_MODE_10GKR, 0x2),
150 MVEBU_COMPHY_CONF(4, 1, PHY_MODE_SGMII, 0x1),
152 MVEBU_COMPHY_CONF(5, 2, PHY_MODE_SGMII, 0x1),
153 MVEBU_COMPHY_CONF(5, 2, PHY_MODE_2500SGMII, 0x1),
156 struct mvebu_comphy_priv {
158 struct regmap *regmap;
162 struct mvebu_comphy_lane {
163 struct mvebu_comphy_priv *priv;
169 static int mvebu_comphy_get_mux(int lane, int port, enum phy_mode mode)
171 int i, n = ARRAY_SIZE(mvebu_comphy_cp110_modes);
173 /* Unused PHY mux value is 0x0 */
174 if (mode == PHY_MODE_INVALID)
177 for (i = 0; i < n; i++) {
178 if (mvebu_comphy_cp110_modes[i].lane == lane &&
179 mvebu_comphy_cp110_modes[i].port == port &&
180 mvebu_comphy_cp110_modes[i].mode == mode)
187 return mvebu_comphy_cp110_modes[i].mux;
190 static void mvebu_comphy_ethernet_init_reset(struct mvebu_comphy_lane *lane,
193 struct mvebu_comphy_priv *priv = lane->priv;
196 regmap_read(priv->regmap, MVEBU_COMPHY_CONF1(lane->id), &val);
197 val &= ~MVEBU_COMPHY_CONF1_USB_PCIE;
198 val |= MVEBU_COMPHY_CONF1_PWRUP;
199 regmap_write(priv->regmap, MVEBU_COMPHY_CONF1(lane->id), val);
201 /* Select baud rates and PLLs */
202 val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG0(lane->id));
203 val &= ~(MVEBU_COMPHY_SERDES_CFG0_PU_PLL |
204 MVEBU_COMPHY_SERDES_CFG0_PU_RX |
205 MVEBU_COMPHY_SERDES_CFG0_PU_TX |
206 MVEBU_COMPHY_SERDES_CFG0_HALF_BUS |
207 MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0xf) |
208 MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0xf));
209 if (mode == PHY_MODE_10GKR)
210 val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0xe) |
211 MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0xe);
212 else if (mode == PHY_MODE_2500SGMII)
213 val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0x8) |
214 MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0x8) |
215 MVEBU_COMPHY_SERDES_CFG0_HALF_BUS;
216 else if (mode == PHY_MODE_SGMII)
217 val |= MVEBU_COMPHY_SERDES_CFG0_GEN_RX(0x6) |
218 MVEBU_COMPHY_SERDES_CFG0_GEN_TX(0x6) |
219 MVEBU_COMPHY_SERDES_CFG0_HALF_BUS;
220 writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG0(lane->id));
223 val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
224 val &= ~(MVEBU_COMPHY_SERDES_CFG1_RESET |
225 MVEBU_COMPHY_SERDES_CFG1_CORE_RESET |
226 MVEBU_COMPHY_SERDES_CFG1_RF_RESET);
227 writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
229 /* de-assert reset */
230 val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
231 val |= MVEBU_COMPHY_SERDES_CFG1_RESET |
232 MVEBU_COMPHY_SERDES_CFG1_CORE_RESET;
233 writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
235 /* wait until clocks are ready */
238 /* exlicitly disable 40B, the bits isn't clear on reset */
239 regmap_read(priv->regmap, MVEBU_COMPHY_CONF6(lane->id), &val);
240 val &= ~MVEBU_COMPHY_CONF6_40B;
241 regmap_write(priv->regmap, MVEBU_COMPHY_CONF6(lane->id), val);
243 /* refclk selection */
244 val = readl(priv->base + MVEBU_COMPHY_MISC_CTRL0(lane->id));
245 val &= ~MVEBU_COMPHY_MISC_CTRL0_REFCLK_SEL;
246 if (mode == PHY_MODE_10GKR)
247 val |= MVEBU_COMPHY_MISC_CTRL0_ICP_FORCE;
248 writel(val, priv->base + MVEBU_COMPHY_MISC_CTRL0(lane->id));
250 /* power and pll selection */
251 val = readl(priv->base + MVEBU_COMPHY_PWRPLL_CTRL(lane->id));
252 val &= ~(MVEBU_COMPHY_PWRPLL_CTRL_RFREQ(0x1f) |
253 MVEBU_COMPHY_PWRPLL_PHY_MODE(0x7));
254 val |= MVEBU_COMPHY_PWRPLL_CTRL_RFREQ(0x1) |
255 MVEBU_COMPHY_PWRPLL_PHY_MODE(0x4);
256 writel(val, priv->base + MVEBU_COMPHY_PWRPLL_CTRL(lane->id));
258 val = readl(priv->base + MVEBU_COMPHY_LOOPBACK(lane->id));
259 val &= ~MVEBU_COMPHY_LOOPBACK_DBUS_WIDTH(0x7);
260 val |= MVEBU_COMPHY_LOOPBACK_DBUS_WIDTH(0x1);
261 writel(val, priv->base + MVEBU_COMPHY_LOOPBACK(lane->id));
264 static int mvebu_comphy_init_plls(struct mvebu_comphy_lane *lane,
267 struct mvebu_comphy_priv *priv = lane->priv;
270 /* SERDES external config */
271 val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG0(lane->id));
272 val |= MVEBU_COMPHY_SERDES_CFG0_PU_PLL |
273 MVEBU_COMPHY_SERDES_CFG0_PU_RX |
274 MVEBU_COMPHY_SERDES_CFG0_PU_TX;
275 writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG0(lane->id));
277 /* check rx/tx pll */
278 readl_poll_timeout(priv->base + MVEBU_COMPHY_SERDES_STATUS0(lane->id),
280 val & (MVEBU_COMPHY_SERDES_STATUS0_RX_PLL_RDY |
281 MVEBU_COMPHY_SERDES_STATUS0_TX_PLL_RDY),
283 if (!(val & (MVEBU_COMPHY_SERDES_STATUS0_RX_PLL_RDY |
284 MVEBU_COMPHY_SERDES_STATUS0_TX_PLL_RDY)))
288 val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
289 val |= MVEBU_COMPHY_SERDES_CFG1_RX_INIT;
290 writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
293 readl_poll_timeout(priv->base + MVEBU_COMPHY_SERDES_STATUS0(lane->id),
294 val, val & MVEBU_COMPHY_SERDES_STATUS0_RX_INIT,
296 if (!(val & MVEBU_COMPHY_SERDES_STATUS0_RX_INIT))
299 val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
300 val &= ~MVEBU_COMPHY_SERDES_CFG1_RX_INIT;
301 writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
306 static int mvebu_comphy_set_mode_sgmii(struct phy *phy, enum phy_mode mode)
308 struct mvebu_comphy_lane *lane = phy_get_drvdata(phy);
309 struct mvebu_comphy_priv *priv = lane->priv;
312 mvebu_comphy_ethernet_init_reset(lane, mode);
314 val = readl(priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id));
315 val &= ~MVEBU_COMPHY_RX_CTRL1_CLK8T_EN;
316 val |= MVEBU_COMPHY_RX_CTRL1_RXCLK2X_SEL;
317 writel(val, priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id));
319 val = readl(priv->base + MVEBU_COMPHY_DLT_CTRL(lane->id));
320 val &= ~MVEBU_COMPHY_DLT_CTRL_DTL_FLOOP_EN;
321 writel(val, priv->base + MVEBU_COMPHY_DLT_CTRL(lane->id));
323 regmap_read(priv->regmap, MVEBU_COMPHY_CONF1(lane->id), &val);
324 val &= ~MVEBU_COMPHY_CONF1_USB_PCIE;
325 val |= MVEBU_COMPHY_CONF1_PWRUP;
326 regmap_write(priv->regmap, MVEBU_COMPHY_CONF1(lane->id), val);
328 val = readl(priv->base + MVEBU_COMPHY_GEN1_S0(lane->id));
329 val &= ~MVEBU_COMPHY_GEN1_S0_TX_EMPH(0xf);
330 val |= MVEBU_COMPHY_GEN1_S0_TX_EMPH(0x1);
331 writel(val, priv->base + MVEBU_COMPHY_GEN1_S0(lane->id));
333 return mvebu_comphy_init_plls(lane, PHY_MODE_SGMII);
336 static int mvebu_comphy_set_mode_10gkr(struct phy *phy)
338 struct mvebu_comphy_lane *lane = phy_get_drvdata(phy);
339 struct mvebu_comphy_priv *priv = lane->priv;
342 mvebu_comphy_ethernet_init_reset(lane, PHY_MODE_10GKR);
344 val = readl(priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id));
345 val |= MVEBU_COMPHY_RX_CTRL1_RXCLK2X_SEL |
346 MVEBU_COMPHY_RX_CTRL1_CLK8T_EN;
347 writel(val, priv->base + MVEBU_COMPHY_RX_CTRL1(lane->id));
349 val = readl(priv->base + MVEBU_COMPHY_DLT_CTRL(lane->id));
350 val |= MVEBU_COMPHY_DLT_CTRL_DTL_FLOOP_EN;
351 writel(val, priv->base + MVEBU_COMPHY_DLT_CTRL(lane->id));
354 val = readl(priv->base + MVEBU_COMPHY_SPEED_DIV(lane->id));
355 val |= MVEBU_COMPHY_SPEED_DIV_TX_FORCE;
356 writel(val, priv->base + MVEBU_COMPHY_SPEED_DIV(lane->id));
358 val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG2(lane->id));
359 val |= MVEBU_COMPHY_SERDES_CFG2_DFE_EN;
360 writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG2(lane->id));
363 val = readl(priv->base + MVEBU_COMPHY_DFE_RES(lane->id));
364 val |= MVEBU_COMPHY_DFE_RES_FORCE_GEN_TBL;
365 writel(val, priv->base + MVEBU_COMPHY_DFE_RES(lane->id));
367 val = readl(priv->base + MVEBU_COMPHY_GEN1_S0(lane->id));
368 val &= ~(MVEBU_COMPHY_GEN1_S0_TX_AMP(0x1f) |
369 MVEBU_COMPHY_GEN1_S0_TX_EMPH(0xf));
370 val |= MVEBU_COMPHY_GEN1_S0_TX_AMP(0x1c) |
371 MVEBU_COMPHY_GEN1_S0_TX_EMPH(0xe);
372 writel(val, priv->base + MVEBU_COMPHY_GEN1_S0(lane->id));
374 val = readl(priv->base + MVEBU_COMPHY_GEN1_S2(lane->id));
375 val &= ~MVEBU_COMPHY_GEN1_S2_TX_EMPH(0xf);
376 val |= MVEBU_COMPHY_GEN1_S2_TX_EMPH_EN;
377 writel(val, priv->base + MVEBU_COMPHY_GEN1_S2(lane->id));
379 val = readl(priv->base + MVEBU_COMPHY_TX_SLEW_RATE(lane->id));
380 val |= MVEBU_COMPHY_TX_SLEW_RATE_EMPH(0x3) |
381 MVEBU_COMPHY_TX_SLEW_RATE_SLC(0x3f);
382 writel(val, priv->base + MVEBU_COMPHY_TX_SLEW_RATE(lane->id));
384 /* Impedance calibration */
385 val = readl(priv->base + MVEBU_COMPHY_IMP_CAL(lane->id));
386 val &= ~MVEBU_COMPHY_IMP_CAL_TX_EXT(0x1f);
387 val |= MVEBU_COMPHY_IMP_CAL_TX_EXT(0xe) |
388 MVEBU_COMPHY_IMP_CAL_TX_EXT_EN;
389 writel(val, priv->base + MVEBU_COMPHY_IMP_CAL(lane->id));
391 val = readl(priv->base + MVEBU_COMPHY_GEN1_S5(lane->id));
392 val &= ~MVEBU_COMPHY_GEN1_S5_ICP(0xf);
393 writel(val, priv->base + MVEBU_COMPHY_GEN1_S5(lane->id));
395 val = readl(priv->base + MVEBU_COMPHY_GEN1_S1(lane->id));
396 val &= ~(MVEBU_COMPHY_GEN1_S1_RX_MUL_PI(0x7) |
397 MVEBU_COMPHY_GEN1_S1_RX_MUL_PF(0x7) |
398 MVEBU_COMPHY_GEN1_S1_RX_MUL_FI(0x3) |
399 MVEBU_COMPHY_GEN1_S1_RX_MUL_FF(0x3));
400 val |= MVEBU_COMPHY_GEN1_S1_RX_DFE_EN |
401 MVEBU_COMPHY_GEN1_S1_RX_MUL_PI(0x2) |
402 MVEBU_COMPHY_GEN1_S1_RX_MUL_PF(0x2) |
403 MVEBU_COMPHY_GEN1_S1_RX_MUL_FF(0x1) |
404 MVEBU_COMPHY_GEN1_S1_RX_DIV(0x3);
405 writel(val, priv->base + MVEBU_COMPHY_GEN1_S1(lane->id));
407 val = readl(priv->base + MVEBU_COMPHY_COEF(lane->id));
408 val &= ~(MVEBU_COMPHY_COEF_DFE_EN | MVEBU_COMPHY_COEF_DFE_CTRL);
409 writel(val, priv->base + MVEBU_COMPHY_COEF(lane->id));
411 val = readl(priv->base + MVEBU_COMPHY_GEN1_S4(lane->id));
412 val &= ~MVEBU_COMPHY_GEN1_S4_DFE_RES(0x3);
413 val |= MVEBU_COMPHY_GEN1_S4_DFE_RES(0x1);
414 writel(val, priv->base + MVEBU_COMPHY_GEN1_S4(lane->id));
416 val = readl(priv->base + MVEBU_COMPHY_GEN1_S3(lane->id));
417 val |= MVEBU_COMPHY_GEN1_S3_FBCK_SEL;
418 writel(val, priv->base + MVEBU_COMPHY_GEN1_S3(lane->id));
420 /* rx training timer */
421 val = readl(priv->base + MVEBU_COMPHY_TRAINING5(lane->id));
422 val &= ~MVEBU_COMPHY_TRAINING5_RX_TIMER(0x3ff);
423 val |= MVEBU_COMPHY_TRAINING5_RX_TIMER(0x13);
424 writel(val, priv->base + MVEBU_COMPHY_TRAINING5(lane->id));
426 /* tx train peak to peak hold */
427 val = readl(priv->base + MVEBU_COMPHY_TRAINING0(lane->id));
428 val |= MVEBU_COMPHY_TRAINING0_P2P_HOLD;
429 writel(val, priv->base + MVEBU_COMPHY_TRAINING0(lane->id));
431 val = readl(priv->base + MVEBU_COMPHY_TX_PRESET(lane->id));
432 val &= ~MVEBU_COMPHY_TX_PRESET_INDEX(0xf);
433 val |= MVEBU_COMPHY_TX_PRESET_INDEX(0x2); /* preset coeff */
434 writel(val, priv->base + MVEBU_COMPHY_TX_PRESET(lane->id));
436 val = readl(priv->base + MVEBU_COMPHY_FRAME_DETECT3(lane->id));
437 val &= ~MVEBU_COMPHY_FRAME_DETECT3_LOST_TIMEOUT_EN;
438 writel(val, priv->base + MVEBU_COMPHY_FRAME_DETECT3(lane->id));
440 val = readl(priv->base + MVEBU_COMPHY_TX_TRAIN_PRESET(lane->id));
441 val |= MVEBU_COMPHY_TX_TRAIN_PRESET_16B_AUTO_EN |
442 MVEBU_COMPHY_TX_TRAIN_PRESET_PRBS11;
443 writel(val, priv->base + MVEBU_COMPHY_TX_TRAIN_PRESET(lane->id));
445 val = readl(priv->base + MVEBU_COMPHY_FRAME_DETECT0(lane->id));
446 val &= ~MVEBU_COMPHY_FRAME_DETECT0_PATN(0x1ff);
447 val |= MVEBU_COMPHY_FRAME_DETECT0_PATN(0x88);
448 writel(val, priv->base + MVEBU_COMPHY_FRAME_DETECT0(lane->id));
450 val = readl(priv->base + MVEBU_COMPHY_DME(lane->id));
451 val |= MVEBU_COMPHY_DME_ETH_MODE;
452 writel(val, priv->base + MVEBU_COMPHY_DME(lane->id));
454 val = readl(priv->base + MVEBU_COMPHY_VDD_CAL0(lane->id));
455 val |= MVEBU_COMPHY_VDD_CAL0_CONT_MODE;
456 writel(val, priv->base + MVEBU_COMPHY_VDD_CAL0(lane->id));
458 val = readl(priv->base + MVEBU_SP_CALIB(lane->id));
459 val &= ~MVEBU_SP_CALIB_SAMPLER(0x3);
460 val |= MVEBU_SP_CALIB_SAMPLER(0x3) |
461 MVEBU_SP_CALIB_SAMPLER_EN;
462 writel(val, priv->base + MVEBU_SP_CALIB(lane->id));
463 val &= ~MVEBU_SP_CALIB_SAMPLER_EN;
464 writel(val, priv->base + MVEBU_SP_CALIB(lane->id));
466 /* External rx regulator */
467 val = readl(priv->base + MVEBU_COMPHY_EXT_SELV(lane->id));
468 val &= ~MVEBU_COMPHY_EXT_SELV_RX_SAMPL(0x1f);
469 val |= MVEBU_COMPHY_EXT_SELV_RX_SAMPL(0x1a);
470 writel(val, priv->base + MVEBU_COMPHY_EXT_SELV(lane->id));
472 return mvebu_comphy_init_plls(lane, PHY_MODE_10GKR);
475 static int mvebu_comphy_power_on(struct phy *phy)
477 struct mvebu_comphy_lane *lane = phy_get_drvdata(phy);
478 struct mvebu_comphy_priv *priv = lane->priv;
482 mux = mvebu_comphy_get_mux(lane->id, lane->port, lane->mode);
486 regmap_read(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, &val);
487 val &= ~(0xf << MVEBU_COMPHY_PIPE_SELECTOR_PIPE(lane->id));
488 regmap_write(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, val);
490 regmap_read(priv->regmap, MVEBU_COMPHY_SELECTOR, &val);
491 val &= ~(0xf << MVEBU_COMPHY_SELECTOR_PHY(lane->id));
492 val |= mux << MVEBU_COMPHY_SELECTOR_PHY(lane->id);
493 regmap_write(priv->regmap, MVEBU_COMPHY_SELECTOR, val);
495 switch (lane->mode) {
497 case PHY_MODE_2500SGMII:
498 ret = mvebu_comphy_set_mode_sgmii(phy, lane->mode);
501 ret = mvebu_comphy_set_mode_10gkr(phy);
508 val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
509 val |= MVEBU_COMPHY_SERDES_CFG1_RF_RESET;
510 writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
515 static int mvebu_comphy_set_mode(struct phy *phy, enum phy_mode mode)
517 struct mvebu_comphy_lane *lane = phy_get_drvdata(phy);
519 if (mvebu_comphy_get_mux(lane->id, lane->port, mode) < 0)
526 static int mvebu_comphy_power_off(struct phy *phy)
528 struct mvebu_comphy_lane *lane = phy_get_drvdata(phy);
529 struct mvebu_comphy_priv *priv = lane->priv;
532 val = readl(priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
533 val &= ~(MVEBU_COMPHY_SERDES_CFG1_RESET |
534 MVEBU_COMPHY_SERDES_CFG1_CORE_RESET |
535 MVEBU_COMPHY_SERDES_CFG1_RF_RESET);
536 writel(val, priv->base + MVEBU_COMPHY_SERDES_CFG1(lane->id));
538 regmap_read(priv->regmap, MVEBU_COMPHY_SELECTOR, &val);
539 val &= ~(0xf << MVEBU_COMPHY_SELECTOR_PHY(lane->id));
540 regmap_write(priv->regmap, MVEBU_COMPHY_SELECTOR, val);
542 regmap_read(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, &val);
543 val &= ~(0xf << MVEBU_COMPHY_PIPE_SELECTOR_PIPE(lane->id));
544 regmap_write(priv->regmap, MVEBU_COMPHY_PIPE_SELECTOR, val);
549 static const struct phy_ops mvebu_comphy_ops = {
550 .power_on = mvebu_comphy_power_on,
551 .power_off = mvebu_comphy_power_off,
552 .set_mode = mvebu_comphy_set_mode,
553 .owner = THIS_MODULE,
556 static struct phy *mvebu_comphy_xlate(struct device *dev,
557 struct of_phandle_args *args)
559 struct mvebu_comphy_lane *lane;
562 if (WARN_ON(args->args[0] >= MVEBU_COMPHY_PORTS))
563 return ERR_PTR(-EINVAL);
565 phy = of_phy_simple_xlate(dev, args);
569 lane = phy_get_drvdata(phy);
571 return ERR_PTR(-EBUSY);
572 lane->port = args->args[0];
577 static int mvebu_comphy_probe(struct platform_device *pdev)
579 struct mvebu_comphy_priv *priv;
580 struct phy_provider *provider;
581 struct device_node *child;
582 struct resource *res;
584 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
588 priv->dev = &pdev->dev;
590 syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
591 "marvell,system-controller");
592 if (IS_ERR(priv->regmap))
593 return PTR_ERR(priv->regmap);
594 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
595 priv->base = devm_ioremap_resource(&pdev->dev, res);
596 if (IS_ERR(priv->base))
597 return PTR_ERR(priv->base);
599 for_each_available_child_of_node(pdev->dev.of_node, child) {
600 struct mvebu_comphy_lane *lane;
605 ret = of_property_read_u32(child, "reg", &val);
607 dev_err(&pdev->dev, "missing 'reg' property (%d)\n",
612 if (val >= MVEBU_COMPHY_LANES) {
613 dev_err(&pdev->dev, "invalid 'reg' property\n");
617 lane = devm_kzalloc(&pdev->dev, sizeof(*lane), GFP_KERNEL);
621 phy = devm_phy_create(&pdev->dev, child, &mvebu_comphy_ops);
626 lane->mode = PHY_MODE_INVALID;
629 phy_set_drvdata(phy, lane);
632 * Once all modes are supported in this driver we should call
633 * mvebu_comphy_power_off(phy) here to avoid relying on the
634 * bootloader/firmware configuration.
638 dev_set_drvdata(&pdev->dev, priv);
639 provider = devm_of_phy_provider_register(&pdev->dev,
641 return PTR_ERR_OR_ZERO(provider);
644 static const struct of_device_id mvebu_comphy_of_match_table[] = {
645 { .compatible = "marvell,comphy-cp110" },
648 MODULE_DEVICE_TABLE(of, mvebu_comphy_of_match_table);
650 static struct platform_driver mvebu_comphy_driver = {
651 .probe = mvebu_comphy_probe,
653 .name = "mvebu-comphy",
654 .of_match_table = mvebu_comphy_of_match_table,
657 module_platform_driver(mvebu_comphy_driver);
659 MODULE_AUTHOR("Antoine Tenart <antoine.tenart@free-electrons.com>");
660 MODULE_DESCRIPTION("Common PHY driver for mvebu SoCs");
661 MODULE_LICENSE("GPL v2");