blob: 2dd964f7b20208c136449cfc28e7222e0461ac06 [file] [log] [blame]
Ryder Lee235bad02019-08-22 12:26:50 +02001// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2015 - 2019 MediaTek Inc.
4 * Author: Chunfeng Yun <chunfeng.yun@mediatek.com>
5 * Ryder Lee <ryder.lee@mediatek.com>
6 */
7
8#include <common.h>
9#include <clk.h>
10#include <dm.h>
11#include <generic-phy.h>
Simon Glass336d4612020-02-03 07:36:16 -070012#include <malloc.h>
Ryder Lee235bad02019-08-22 12:26:50 +020013#include <mapmem.h>
14#include <asm/io.h>
Simon Glass336d4612020-02-03 07:36:16 -070015#include <dm/device_compat.h>
Simon Glass61b29b82020-02-03 07:36:15 -070016#include <dm/devres.h>
Simon Glasscd93d622020-05-10 11:40:13 -060017#include <linux/bitops.h>
Simon Glassc05ed002020-05-10 11:40:11 -060018#include <linux/delay.h>
Ryder Lee235bad02019-08-22 12:26:50 +020019
20#include <dt-bindings/phy/phy.h>
21
22/* version V1 sub-banks offset base address */
23/* banks shared by multiple phys */
24#define SSUSB_SIFSLV_V1_SPLLC 0x000 /* shared by u3 phys */
Chunfeng Yunee6eabb2020-05-02 11:35:15 +020025#define SSUSB_SIFSLV_V1_U2FREQ 0x100 /* shared by u2 phys */
Ryder Lee235bad02019-08-22 12:26:50 +020026#define SSUSB_SIFSLV_V1_CHIP 0x300 /* shared by u3 phys */
Chunfeng Yunee6eabb2020-05-02 11:35:15 +020027/* u2 phy bank */
28#define SSUSB_SIFSLV_V1_U2PHY_COM 0x000
Ryder Lee235bad02019-08-22 12:26:50 +020029/* u3/pcie/sata phy banks */
30#define SSUSB_SIFSLV_V1_U3PHYD 0x000
31#define SSUSB_SIFSLV_V1_U3PHYA 0x200
32
Chunfeng Yund1ae8442020-05-02 11:35:16 +020033/* version V2 sub-banks offset base address */
34/* u2 phy banks */
35#define SSUSB_SIFSLV_V2_MISC 0x000
36#define SSUSB_SIFSLV_V2_U2FREQ 0x100
37#define SSUSB_SIFSLV_V2_U2PHY_COM 0x300
38/* u3/pcie/sata phy banks */
39#define SSUSB_SIFSLV_V2_SPLLC 0x000
40#define SSUSB_SIFSLV_V2_CHIP 0x100
41#define SSUSB_SIFSLV_V2_U3PHYD 0x200
42#define SSUSB_SIFSLV_V2_U3PHYA 0x400
43
Chunfeng Yunee6eabb2020-05-02 11:35:15 +020044#define U3P_USBPHYACR0 0x000
45#define PA0_RG_U2PLL_FORCE_ON BIT(15)
46#define PA0_RG_USB20_INTR_EN BIT(5)
47
48#define U3P_USBPHYACR5 0x014
49#define PA5_RG_U2_HSTX_SRCAL_EN BIT(15)
50#define PA5_RG_U2_HSTX_SRCTRL GENMASK(14, 12)
51#define PA5_RG_U2_HSTX_SRCTRL_VAL(x) ((0x7 & (x)) << 12)
52#define PA5_RG_U2_HS_100U_U3_EN BIT(11)
53
54#define U3P_USBPHYACR6 0x018
55#define PA6_RG_U2_BC11_SW_EN BIT(23)
56#define PA6_RG_U2_OTG_VBUSCMP_EN BIT(20)
57#define PA6_RG_U2_SQTH GENMASK(3, 0)
58#define PA6_RG_U2_SQTH_VAL(x) (0xf & (x))
59
60#define U3P_U2PHYACR4 0x020
61#define P2C_RG_USB20_GPIO_CTL BIT(9)
62#define P2C_USB20_GPIO_MODE BIT(8)
63#define P2C_U2_GPIO_CTR_MSK \
64 (P2C_RG_USB20_GPIO_CTL | P2C_USB20_GPIO_MODE)
65
66#define U3P_U2PHYDTM0 0x068
67#define P2C_FORCE_UART_EN BIT(26)
68#define P2C_FORCE_DATAIN BIT(23)
69#define P2C_FORCE_DM_PULLDOWN BIT(21)
70#define P2C_FORCE_DP_PULLDOWN BIT(20)
71#define P2C_FORCE_XCVRSEL BIT(19)
72#define P2C_FORCE_SUSPENDM BIT(18)
73#define P2C_FORCE_TERMSEL BIT(17)
74#define P2C_RG_DATAIN GENMASK(13, 10)
75#define P2C_RG_DATAIN_VAL(x) ((0xf & (x)) << 10)
76#define P2C_RG_DMPULLDOWN BIT(7)
77#define P2C_RG_DPPULLDOWN BIT(6)
78#define P2C_RG_XCVRSEL GENMASK(5, 4)
79#define P2C_RG_XCVRSEL_VAL(x) ((0x3 & (x)) << 4)
80#define P2C_RG_SUSPENDM BIT(3)
81#define P2C_RG_TERMSEL BIT(2)
82#define P2C_DTM0_PART_MASK \
83 (P2C_FORCE_DATAIN | P2C_FORCE_DM_PULLDOWN | \
84 P2C_FORCE_DP_PULLDOWN | P2C_FORCE_XCVRSEL | \
85 P2C_FORCE_TERMSEL | P2C_RG_DMPULLDOWN | \
86 P2C_RG_DPPULLDOWN | P2C_RG_TERMSEL)
87
88#define U3P_U2PHYDTM1 0x06C
89#define P2C_RG_UART_EN BIT(16)
90#define P2C_FORCE_IDDIG BIT(9)
91#define P2C_RG_VBUSVALID BIT(5)
92#define P2C_RG_SESSEND BIT(4)
93#define P2C_RG_AVALID BIT(2)
94#define P2C_RG_IDDIG BIT(1)
95
Ryder Lee235bad02019-08-22 12:26:50 +020096#define U3P_U3_CHIP_GPIO_CTLD 0x0c
97#define P3C_REG_IP_SW_RST BIT(31)
98#define P3C_MCU_BUS_CK_GATE_EN BIT(30)
99#define P3C_FORCE_IP_SW_RST BIT(29)
100
101#define U3P_U3_CHIP_GPIO_CTLE 0x10
102#define P3C_RG_SWRST_U3_PHYD BIT(25)
103#define P3C_RG_SWRST_U3_PHYD_FORCE_EN BIT(24)
104
105#define U3P_U3_PHYA_REG0 0x000
106#define P3A_RG_CLKDRV_OFF GENMASK(3, 2)
107#define P3A_RG_CLKDRV_OFF_VAL(x) ((0x3 & (x)) << 2)
108
109#define U3P_U3_PHYA_REG1 0x004
110#define P3A_RG_CLKDRV_AMP GENMASK(31, 29)
111#define P3A_RG_CLKDRV_AMP_VAL(x) ((0x7 & (x)) << 29)
112
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200113#define U3P_U3_PHYA_REG6 0x018
114#define P3A_RG_TX_EIDLE_CM GENMASK(31, 28)
115#define P3A_RG_TX_EIDLE_CM_VAL(x) ((0xf & (x)) << 28)
116
117#define U3P_U3_PHYA_REG9 0x024
118#define P3A_RG_RX_DAC_MUX GENMASK(5, 1)
119#define P3A_RG_RX_DAC_MUX_VAL(x) ((0x1f & (x)) << 1)
120
Ryder Lee235bad02019-08-22 12:26:50 +0200121#define U3P_U3_PHYA_DA_REG0 0x100
122#define P3A_RG_XTAL_EXT_PE2H GENMASK(17, 16)
123#define P3A_RG_XTAL_EXT_PE2H_VAL(x) ((0x3 & (x)) << 16)
124#define P3A_RG_XTAL_EXT_PE1H GENMASK(13, 12)
125#define P3A_RG_XTAL_EXT_PE1H_VAL(x) ((0x3 & (x)) << 12)
126#define P3A_RG_XTAL_EXT_EN_U3 GENMASK(11, 10)
127#define P3A_RG_XTAL_EXT_EN_U3_VAL(x) ((0x3 & (x)) << 10)
128
129#define U3P_U3_PHYA_DA_REG4 0x108
130#define P3A_RG_PLL_DIVEN_PE2H GENMASK(21, 19)
131#define P3A_RG_PLL_BC_PE2H GENMASK(7, 6)
132#define P3A_RG_PLL_BC_PE2H_VAL(x) ((0x3 & (x)) << 6)
133
134#define U3P_U3_PHYA_DA_REG5 0x10c
135#define P3A_RG_PLL_BR_PE2H GENMASK(29, 28)
136#define P3A_RG_PLL_BR_PE2H_VAL(x) ((0x3 & (x)) << 28)
137#define P3A_RG_PLL_IC_PE2H GENMASK(15, 12)
138#define P3A_RG_PLL_IC_PE2H_VAL(x) ((0xf & (x)) << 12)
139
140#define U3P_U3_PHYA_DA_REG6 0x110
141#define P3A_RG_PLL_IR_PE2H GENMASK(19, 16)
142#define P3A_RG_PLL_IR_PE2H_VAL(x) ((0xf & (x)) << 16)
143
144#define U3P_U3_PHYA_DA_REG7 0x114
145#define P3A_RG_PLL_BP_PE2H GENMASK(19, 16)
146#define P3A_RG_PLL_BP_PE2H_VAL(x) ((0xf & (x)) << 16)
147
148#define U3P_U3_PHYA_DA_REG20 0x13c
149#define P3A_RG_PLL_DELTA1_PE2H GENMASK(31, 16)
150#define P3A_RG_PLL_DELTA1_PE2H_VAL(x) ((0xffff & (x)) << 16)
151
152#define U3P_U3_PHYA_DA_REG25 0x148
153#define P3A_RG_PLL_DELTA_PE2H GENMASK(15, 0)
154#define P3A_RG_PLL_DELTA_PE2H_VAL(x) (0xffff & (x))
155
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200156#define U3P_U3_PHYD_LFPS1 0x00c
157#define P3D_RG_FWAKE_TH GENMASK(21, 16)
158#define P3D_RG_FWAKE_TH_VAL(x) ((0x3f & (x)) << 16)
159
160#define U3P_U3_PHYD_CDR1 0x05c
161#define P3D_RG_CDR_BIR_LTD1 GENMASK(28, 24)
162#define P3D_RG_CDR_BIR_LTD1_VAL(x) ((0x1f & (x)) << 24)
163#define P3D_RG_CDR_BIR_LTD0 GENMASK(12, 8)
164#define P3D_RG_CDR_BIR_LTD0_VAL(x) ((0x1f & (x)) << 8)
165
Ryder Lee235bad02019-08-22 12:26:50 +0200166#define U3P_U3_PHYD_RXDET1 0x128
167#define P3D_RG_RXDET_STB2_SET GENMASK(17, 9)
168#define P3D_RG_RXDET_STB2_SET_VAL(x) ((0x1ff & (x)) << 9)
169
170#define U3P_U3_PHYD_RXDET2 0x12c
171#define P3D_RG_RXDET_STB2_SET_P3 GENMASK(8, 0)
172#define P3D_RG_RXDET_STB2_SET_P3_VAL(x) (0x1ff & (x))
173
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200174#define U3P_SPLLC_XTALCTL3 0x018
175#define XC3_RG_U3_XTAL_RX_PWD BIT(9)
176#define XC3_RG_U3_FRC_XTAL_RX_PWD BIT(8)
177
Frank Wunderlichffbcde22020-08-13 10:20:45 +0200178/* SATA register setting */
179#define PHYD_CTRL_SIGNAL_MODE4 0x1c
180/* CDR Charge Pump P-path current adjustment */
181#define RG_CDR_BICLTD1_GEN1_MSK GENMASK(23, 20)
182#define RG_CDR_BICLTD1_GEN1_VAL(x) ((0xf & (x)) << 20)
183#define RG_CDR_BICLTD0_GEN1_MSK GENMASK(11, 8)
184#define RG_CDR_BICLTD0_GEN1_VAL(x) ((0xf & (x)) << 8)
185
186#define PHYD_DESIGN_OPTION2 0x24
187/* Symbol lock count selection */
188#define RG_LOCK_CNT_SEL_MSK GENMASK(5, 4)
189#define RG_LOCK_CNT_SEL_VAL(x) ((0x3 & (x)) << 4)
190
191#define PHYD_DESIGN_OPTION9 0x40
192/* COMWAK GAP width window */
193#define RG_TG_MAX_MSK GENMASK(20, 16)
194#define RG_TG_MAX_VAL(x) ((0x1f & (x)) << 16)
195/* COMINIT GAP width window */
196#define RG_T2_MAX_MSK GENMASK(13, 8)
197#define RG_T2_MAX_VAL(x) ((0x3f & (x)) << 8)
198/* COMWAK GAP width window */
199#define RG_TG_MIN_MSK GENMASK(7, 5)
200#define RG_TG_MIN_VAL(x) ((0x7 & (x)) << 5)
201/* COMINIT GAP width window */
202#define RG_T2_MIN_MSK GENMASK(4, 0)
203#define RG_T2_MIN_VAL(x) (0x1f & (x))
204
205#define ANA_RG_CTRL_SIGNAL1 0x4c
206/* TX driver tail current control for 0dB de-empahsis mdoe for Gen1 speed */
207#define RG_IDRV_0DB_GEN1_MSK GENMASK(13, 8)
208#define RG_IDRV_0DB_GEN1_VAL(x) ((0x3f & (x)) << 8)
209
210#define ANA_RG_CTRL_SIGNAL4 0x58
211#define RG_CDR_BICLTR_GEN1_MSK GENMASK(23, 20)
212#define RG_CDR_BICLTR_GEN1_VAL(x) ((0xf & (x)) << 20)
213/* Loop filter R1 resistance adjustment for Gen1 speed */
214#define RG_CDR_BR_GEN2_MSK GENMASK(10, 8)
215#define RG_CDR_BR_GEN2_VAL(x) ((0x7 & (x)) << 8)
216
217#define ANA_RG_CTRL_SIGNAL6 0x60
218/* I-path capacitance adjustment for Gen1 */
219#define RG_CDR_BC_GEN1_MSK GENMASK(28, 24)
220#define RG_CDR_BC_GEN1_VAL(x) ((0x1f & (x)) << 24)
221#define RG_CDR_BIRLTR_GEN1_MSK GENMASK(4, 0)
222#define RG_CDR_BIRLTR_GEN1_VAL(x) (0x1f & (x))
223
224#define ANA_EQ_EYE_CTRL_SIGNAL1 0x6c
225/* RX Gen1 LEQ tuning step */
226#define RG_EQ_DLEQ_LFI_GEN1_MSK GENMASK(11, 8)
227#define RG_EQ_DLEQ_LFI_GEN1_VAL(x) ((0xf & (x)) << 8)
228
229#define ANA_EQ_EYE_CTRL_SIGNAL4 0xd8
230#define RG_CDR_BIRLTD0_GEN1_MSK GENMASK(20, 16)
231#define RG_CDR_BIRLTD0_GEN1_VAL(x) ((0x1f & (x)) << 16)
232
233#define ANA_EQ_EYE_CTRL_SIGNAL5 0xdc
234#define RG_CDR_BIRLTD0_GEN3_MSK GENMASK(4, 0)
235#define RG_CDR_BIRLTD0_GEN3_VAL(x) (0x1f & (x))
236
Chunfeng Yund1ae8442020-05-02 11:35:16 +0200237enum mtk_phy_version {
238 MTK_TPHY_V1 = 1,
239 MTK_TPHY_V2,
240};
241
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200242struct u2phy_banks {
243 void __iomem *misc;
244 void __iomem *fmreg;
245 void __iomem *com;
246};
247
Ryder Lee235bad02019-08-22 12:26:50 +0200248struct u3phy_banks {
249 void __iomem *spllc;
250 void __iomem *chip;
251 void __iomem *phyd; /* include u3phyd_bank2 */
252 void __iomem *phya; /* include u3phya_da */
253};
254
255struct mtk_phy_instance {
256 void __iomem *port_base;
257 const struct device_node *np;
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200258 union {
259 struct u2phy_banks u2_banks;
260 struct u3phy_banks u3_banks;
261 };
Ryder Lee235bad02019-08-22 12:26:50 +0200262
Chunfeng Yun4d4abbd2020-05-02 11:35:17 +0200263 struct clk ref_clk; /* reference clock of (digital) phy */
264 struct clk da_ref_clk; /* reference clock of analog phy */
Ryder Lee235bad02019-08-22 12:26:50 +0200265 u32 index;
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200266 u32 type;
Ryder Lee235bad02019-08-22 12:26:50 +0200267};
268
269struct mtk_tphy {
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200270 struct udevice *dev;
Ryder Lee235bad02019-08-22 12:26:50 +0200271 void __iomem *sif_base;
Chunfeng Yund1ae8442020-05-02 11:35:16 +0200272 enum mtk_phy_version version;
Ryder Lee235bad02019-08-22 12:26:50 +0200273 struct mtk_phy_instance **phys;
274 int nphys;
275};
276
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200277static void u2_phy_instance_init(struct mtk_tphy *tphy,
278 struct mtk_phy_instance *instance)
279{
280 struct u2phy_banks *u2_banks = &instance->u2_banks;
281
282 /* switch to USB function, and enable usb pll */
283 clrsetbits_le32(u2_banks->com + U3P_U2PHYDTM0,
284 P2C_FORCE_UART_EN | P2C_FORCE_SUSPENDM,
285 P2C_RG_XCVRSEL_VAL(1) | P2C_RG_DATAIN_VAL(0));
286
287 clrbits_le32(u2_banks->com + U3P_U2PHYDTM1, P2C_RG_UART_EN);
288 setbits_le32(u2_banks->com + U3P_USBPHYACR0, PA0_RG_USB20_INTR_EN);
289
290 /* disable switch 100uA current to SSUSB */
291 clrbits_le32(u2_banks->com + U3P_USBPHYACR5, PA5_RG_U2_HS_100U_U3_EN);
292
293 clrbits_le32(u2_banks->com + U3P_U2PHYACR4, P2C_U2_GPIO_CTR_MSK);
294
295 /* DP/DM BC1.1 path Disable */
296 clrsetbits_le32(u2_banks->com + U3P_USBPHYACR6,
297 PA6_RG_U2_BC11_SW_EN | PA6_RG_U2_SQTH,
298 PA6_RG_U2_SQTH_VAL(2));
299
300 /* set HS slew rate */
301 clrsetbits_le32(u2_banks->com + U3P_USBPHYACR5,
302 PA5_RG_U2_HSTX_SRCTRL, PA5_RG_U2_HSTX_SRCTRL_VAL(4));
303
304 dev_dbg(tphy->dev, "%s(%d)\n", __func__, instance->index);
305}
306
307static void u2_phy_instance_power_on(struct mtk_tphy *tphy,
308 struct mtk_phy_instance *instance)
309{
310 struct u2phy_banks *u2_banks = &instance->u2_banks;
311
312 clrbits_le32(u2_banks->com + U3P_U2PHYDTM0,
313 P2C_RG_XCVRSEL | P2C_RG_DATAIN | P2C_DTM0_PART_MASK);
314
315 /* OTG Enable */
316 setbits_le32(u2_banks->com + U3P_USBPHYACR6,
317 PA6_RG_U2_OTG_VBUSCMP_EN);
318
319 clrsetbits_le32(u2_banks->com + U3P_U2PHYDTM1,
320 P2C_RG_SESSEND, P2C_RG_VBUSVALID | P2C_RG_AVALID);
321
322 dev_dbg(tphy->dev, "%s(%d)\n", __func__, instance->index);
323}
324
325static void u2_phy_instance_power_off(struct mtk_tphy *tphy,
326 struct mtk_phy_instance *instance)
327{
328 struct u2phy_banks *u2_banks = &instance->u2_banks;
329
330 clrbits_le32(u2_banks->com + U3P_U2PHYDTM0,
331 P2C_RG_XCVRSEL | P2C_RG_DATAIN);
332
333 /* OTG Disable */
334 clrbits_le32(u2_banks->com + U3P_USBPHYACR6,
335 PA6_RG_U2_OTG_VBUSCMP_EN);
336
337 clrsetbits_le32(u2_banks->com + U3P_U2PHYDTM1,
338 P2C_RG_VBUSVALID | P2C_RG_AVALID, P2C_RG_SESSEND);
339
340 dev_dbg(tphy->dev, "%s(%d)\n", __func__, instance->index);
341}
342
343static void u3_phy_instance_init(struct mtk_tphy *tphy,
344 struct mtk_phy_instance *instance)
345{
346 struct u3phy_banks *u3_banks = &instance->u3_banks;
347
348 /* gating PCIe Analog XTAL clock */
349 setbits_le32(u3_banks->spllc + U3P_SPLLC_XTALCTL3,
350 XC3_RG_U3_XTAL_RX_PWD | XC3_RG_U3_FRC_XTAL_RX_PWD);
351
352 /* gating XSQ */
353 clrsetbits_le32(u3_banks->phya + U3P_U3_PHYA_DA_REG0,
354 P3A_RG_XTAL_EXT_EN_U3, P3A_RG_XTAL_EXT_EN_U3_VAL(2));
355
356 clrsetbits_le32(u3_banks->phya + U3P_U3_PHYA_REG9,
357 P3A_RG_RX_DAC_MUX, P3A_RG_RX_DAC_MUX_VAL(4));
358
359 clrsetbits_le32(u3_banks->phya + U3P_U3_PHYA_REG6,
360 P3A_RG_TX_EIDLE_CM, P3A_RG_TX_EIDLE_CM_VAL(0xe));
361
362 clrsetbits_le32(u3_banks->phyd + U3P_U3_PHYD_CDR1,
363 P3D_RG_CDR_BIR_LTD0 | P3D_RG_CDR_BIR_LTD1,
364 P3D_RG_CDR_BIR_LTD0_VAL(0xc) |
365 P3D_RG_CDR_BIR_LTD1_VAL(0x3));
366
367 clrsetbits_le32(u3_banks->phyd + U3P_U3_PHYD_LFPS1,
368 P3D_RG_FWAKE_TH, P3D_RG_FWAKE_TH_VAL(0x34));
369
370 clrsetbits_le32(u3_banks->phyd + U3P_U3_PHYD_RXDET1,
371 P3D_RG_RXDET_STB2_SET, P3D_RG_RXDET_STB2_SET_VAL(0x10));
372
373 clrsetbits_le32(u3_banks->phyd + U3P_U3_PHYD_RXDET2,
374 P3D_RG_RXDET_STB2_SET_P3,
375 P3D_RG_RXDET_STB2_SET_P3_VAL(0x10));
376
377 dev_dbg(tphy->dev, "%s(%d)\n", __func__, instance->index);
378}
379
Ryder Lee235bad02019-08-22 12:26:50 +0200380static void pcie_phy_instance_init(struct mtk_tphy *tphy,
381 struct mtk_phy_instance *instance)
382{
383 struct u3phy_banks *u3_banks = &instance->u3_banks;
384
Chunfeng Yund1ae8442020-05-02 11:35:16 +0200385 if (tphy->version != MTK_TPHY_V1)
386 return;
387
Ryder Lee235bad02019-08-22 12:26:50 +0200388 clrsetbits_le32(u3_banks->phya + U3P_U3_PHYA_DA_REG0,
389 P3A_RG_XTAL_EXT_PE1H | P3A_RG_XTAL_EXT_PE2H,
390 P3A_RG_XTAL_EXT_PE1H_VAL(0x2) |
391 P3A_RG_XTAL_EXT_PE2H_VAL(0x2));
392
393 /* ref clk drive */
394 clrsetbits_le32(u3_banks->phya + U3P_U3_PHYA_REG1, P3A_RG_CLKDRV_AMP,
395 P3A_RG_CLKDRV_AMP_VAL(0x4));
396 clrsetbits_le32(u3_banks->phya + U3P_U3_PHYA_REG0, P3A_RG_CLKDRV_OFF,
397 P3A_RG_CLKDRV_OFF_VAL(0x1));
398
399 /* SSC delta -5000ppm */
400 clrsetbits_le32(u3_banks->phya + U3P_U3_PHYA_DA_REG20,
401 P3A_RG_PLL_DELTA1_PE2H,
402 P3A_RG_PLL_DELTA1_PE2H_VAL(0x3c));
403
404 clrsetbits_le32(u3_banks->phya + U3P_U3_PHYA_DA_REG25,
405 P3A_RG_PLL_DELTA_PE2H,
406 P3A_RG_PLL_DELTA_PE2H_VAL(0x36));
407
408 /* change pll BW 0.6M */
409 clrsetbits_le32(u3_banks->phya + U3P_U3_PHYA_DA_REG5,
410 P3A_RG_PLL_BR_PE2H | P3A_RG_PLL_IC_PE2H,
411 P3A_RG_PLL_BR_PE2H_VAL(0x1) |
412 P3A_RG_PLL_IC_PE2H_VAL(0x1));
413 clrsetbits_le32(u3_banks->phya + U3P_U3_PHYA_DA_REG4,
414 P3A_RG_PLL_DIVEN_PE2H | P3A_RG_PLL_BC_PE2H,
415 P3A_RG_PLL_BC_PE2H_VAL(0x3));
416
417 clrsetbits_le32(u3_banks->phya + U3P_U3_PHYA_DA_REG6,
418 P3A_RG_PLL_IR_PE2H, P3A_RG_PLL_IR_PE2H_VAL(0x2));
419 clrsetbits_le32(u3_banks->phya + U3P_U3_PHYA_DA_REG7,
420 P3A_RG_PLL_BP_PE2H, P3A_RG_PLL_BP_PE2H_VAL(0xa));
421
422 /* Tx Detect Rx Timing: 10us -> 5us */
423 clrsetbits_le32(u3_banks->phyd + U3P_U3_PHYD_RXDET1,
424 P3D_RG_RXDET_STB2_SET,
425 P3D_RG_RXDET_STB2_SET_VAL(0x10));
426 clrsetbits_le32(u3_banks->phyd + U3P_U3_PHYD_RXDET2,
427 P3D_RG_RXDET_STB2_SET_P3,
428 P3D_RG_RXDET_STB2_SET_P3_VAL(0x10));
429
430 /* wait for PCIe subsys register to active */
431 udelay(3000);
432}
433
Frank Wunderlichffbcde22020-08-13 10:20:45 +0200434static void sata_phy_instance_init(struct mtk_tphy *tphy,
435 struct mtk_phy_instance *instance)
436{
437 struct u3phy_banks *u3_banks = &instance->u3_banks;
438
439 clrsetbits_le32(u3_banks->phyd + ANA_RG_CTRL_SIGNAL6,
440 RG_CDR_BIRLTR_GEN1_MSK | RG_CDR_BC_GEN1_MSK,
441 RG_CDR_BIRLTR_GEN1_VAL(0x6) |
442 RG_CDR_BC_GEN1_VAL(0x1a));
443 clrsetbits_le32(u3_banks->phyd + ANA_EQ_EYE_CTRL_SIGNAL4,
444 RG_CDR_BIRLTD0_GEN1_MSK,
445 RG_CDR_BIRLTD0_GEN1_VAL(0x18));
446 clrsetbits_le32(u3_banks->phyd + ANA_EQ_EYE_CTRL_SIGNAL5,
447 RG_CDR_BIRLTD0_GEN3_MSK,
448 RG_CDR_BIRLTD0_GEN3_VAL(0x06));
449 clrsetbits_le32(u3_banks->phyd + ANA_RG_CTRL_SIGNAL4,
450 RG_CDR_BICLTR_GEN1_MSK | RG_CDR_BR_GEN2_MSK,
451 RG_CDR_BICLTR_GEN1_VAL(0x0c) |
452 RG_CDR_BR_GEN2_VAL(0x07));
453 clrsetbits_le32(u3_banks->phyd + PHYD_CTRL_SIGNAL_MODE4,
454 RG_CDR_BICLTD0_GEN1_MSK | RG_CDR_BICLTD1_GEN1_MSK,
455 RG_CDR_BICLTD0_GEN1_VAL(0x08) |
456 RG_CDR_BICLTD1_GEN1_VAL(0x02));
457 clrsetbits_le32(u3_banks->phyd + PHYD_DESIGN_OPTION2,
458 RG_LOCK_CNT_SEL_MSK,
459 RG_LOCK_CNT_SEL_VAL(0x02));
460 clrsetbits_le32(u3_banks->phyd + PHYD_DESIGN_OPTION9,
461 RG_T2_MIN_MSK | RG_TG_MIN_MSK |
462 RG_T2_MAX_MSK | RG_TG_MAX_MSK,
463 RG_T2_MIN_VAL(0x12) | RG_TG_MIN_VAL(0x04) |
464 RG_T2_MAX_VAL(0x31) | RG_TG_MAX_VAL(0x0e));
465 clrsetbits_le32(u3_banks->phyd + ANA_RG_CTRL_SIGNAL1,
466 RG_IDRV_0DB_GEN1_MSK,
467 RG_IDRV_0DB_GEN1_VAL(0x20));
468 clrsetbits_le32(u3_banks->phyd + ANA_EQ_EYE_CTRL_SIGNAL1,
469 RG_EQ_DLEQ_LFI_GEN1_MSK,
470 RG_EQ_DLEQ_LFI_GEN1_VAL(0x03));
471}
472
Ryder Lee235bad02019-08-22 12:26:50 +0200473static void pcie_phy_instance_power_on(struct mtk_tphy *tphy,
474 struct mtk_phy_instance *instance)
475{
476 struct u3phy_banks *bank = &instance->u3_banks;
477
478 clrbits_le32(bank->chip + U3P_U3_CHIP_GPIO_CTLD,
479 P3C_FORCE_IP_SW_RST | P3C_REG_IP_SW_RST);
480 clrbits_le32(bank->chip + U3P_U3_CHIP_GPIO_CTLE,
481 P3C_RG_SWRST_U3_PHYD_FORCE_EN | P3C_RG_SWRST_U3_PHYD);
482}
483
484static void pcie_phy_instance_power_off(struct mtk_tphy *tphy,
485 struct mtk_phy_instance *instance)
486
487{
488 struct u3phy_banks *bank = &instance->u3_banks;
489
490 setbits_le32(bank->chip + U3P_U3_CHIP_GPIO_CTLD,
491 P3C_FORCE_IP_SW_RST | P3C_REG_IP_SW_RST);
492 setbits_le32(bank->chip + U3P_U3_CHIP_GPIO_CTLE,
493 P3C_RG_SWRST_U3_PHYD_FORCE_EN | P3C_RG_SWRST_U3_PHYD);
494}
495
496static void phy_v1_banks_init(struct mtk_tphy *tphy,
497 struct mtk_phy_instance *instance)
498{
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200499 struct u2phy_banks *u2_banks = &instance->u2_banks;
Ryder Lee235bad02019-08-22 12:26:50 +0200500 struct u3phy_banks *u3_banks = &instance->u3_banks;
501
502 switch (instance->type) {
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200503 case PHY_TYPE_USB2:
504 u2_banks->misc = NULL;
505 u2_banks->fmreg = tphy->sif_base + SSUSB_SIFSLV_V1_U2FREQ;
506 u2_banks->com = instance->port_base + SSUSB_SIFSLV_V1_U2PHY_COM;
507 break;
508 case PHY_TYPE_USB3:
Ryder Lee235bad02019-08-22 12:26:50 +0200509 case PHY_TYPE_PCIE:
510 u3_banks->spllc = tphy->sif_base + SSUSB_SIFSLV_V1_SPLLC;
511 u3_banks->chip = tphy->sif_base + SSUSB_SIFSLV_V1_CHIP;
512 u3_banks->phyd = instance->port_base + SSUSB_SIFSLV_V1_U3PHYD;
513 u3_banks->phya = instance->port_base + SSUSB_SIFSLV_V1_U3PHYA;
514 break;
Frank Wunderlichffbcde22020-08-13 10:20:45 +0200515 case PHY_TYPE_SATA:
516 u3_banks->phyd = instance->port_base + SSUSB_SIFSLV_V1_U3PHYD;
517 break;
Ryder Lee235bad02019-08-22 12:26:50 +0200518 default:
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200519 dev_err(tphy->dev, "incompatible PHY type\n");
Ryder Lee235bad02019-08-22 12:26:50 +0200520 return;
521 }
522}
523
Chunfeng Yund1ae8442020-05-02 11:35:16 +0200524static void phy_v2_banks_init(struct mtk_tphy *tphy,
525 struct mtk_phy_instance *instance)
526{
527 struct u2phy_banks *u2_banks = &instance->u2_banks;
528 struct u3phy_banks *u3_banks = &instance->u3_banks;
529
530 switch (instance->type) {
531 case PHY_TYPE_USB2:
532 u2_banks->misc = instance->port_base + SSUSB_SIFSLV_V2_MISC;
533 u2_banks->fmreg = instance->port_base + SSUSB_SIFSLV_V2_U2FREQ;
534 u2_banks->com = instance->port_base + SSUSB_SIFSLV_V2_U2PHY_COM;
535 break;
536 case PHY_TYPE_USB3:
537 case PHY_TYPE_PCIE:
538 u3_banks->spllc = instance->port_base + SSUSB_SIFSLV_V2_SPLLC;
539 u3_banks->chip = instance->port_base + SSUSB_SIFSLV_V2_CHIP;
540 u3_banks->phyd = instance->port_base + SSUSB_SIFSLV_V2_U3PHYD;
541 u3_banks->phya = instance->port_base + SSUSB_SIFSLV_V2_U3PHYA;
542 break;
543 default:
544 dev_err(tphy->dev, "incompatible PHY type\n");
545 return;
546 }
547}
548
Ryder Lee235bad02019-08-22 12:26:50 +0200549static int mtk_phy_init(struct phy *phy)
550{
551 struct mtk_tphy *tphy = dev_get_priv(phy->dev);
552 struct mtk_phy_instance *instance = tphy->phys[phy->id];
553 int ret;
554
Ryder Lee235bad02019-08-22 12:26:50 +0200555 ret = clk_enable(&instance->ref_clk);
Chunfeng Yun4d4abbd2020-05-02 11:35:17 +0200556 if (ret < 0) {
557 dev_err(tphy->dev, "failed to enable ref_clk\n");
Ryder Lee235bad02019-08-22 12:26:50 +0200558 return ret;
Chunfeng Yun4d4abbd2020-05-02 11:35:17 +0200559 }
560
561 ret = clk_enable(&instance->da_ref_clk);
562 if (ret < 0) {
563 dev_err(tphy->dev, "failed to enable da_ref_clk %d\n", ret);
564 clk_disable(&instance->ref_clk);
565 return ret;
566 }
Ryder Lee235bad02019-08-22 12:26:50 +0200567
568 switch (instance->type) {
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200569 case PHY_TYPE_USB2:
570 u2_phy_instance_init(tphy, instance);
571 break;
572 case PHY_TYPE_USB3:
573 u3_phy_instance_init(tphy, instance);
574 break;
Ryder Lee235bad02019-08-22 12:26:50 +0200575 case PHY_TYPE_PCIE:
576 pcie_phy_instance_init(tphy, instance);
577 break;
Frank Wunderlichffbcde22020-08-13 10:20:45 +0200578 case PHY_TYPE_SATA:
579 sata_phy_instance_init(tphy, instance);
580 break;
Ryder Lee235bad02019-08-22 12:26:50 +0200581 default:
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200582 dev_err(tphy->dev, "incompatible PHY type\n");
Ryder Lee235bad02019-08-22 12:26:50 +0200583 return -EINVAL;
584 }
585
586 return 0;
587}
588
589static int mtk_phy_power_on(struct phy *phy)
590{
591 struct mtk_tphy *tphy = dev_get_priv(phy->dev);
592 struct mtk_phy_instance *instance = tphy->phys[phy->id];
593
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200594 if (instance->type == PHY_TYPE_USB2)
595 u2_phy_instance_power_on(tphy, instance);
596 else if (instance->type == PHY_TYPE_PCIE)
597 pcie_phy_instance_power_on(tphy, instance);
Ryder Lee235bad02019-08-22 12:26:50 +0200598
599 return 0;
600}
601
602static int mtk_phy_power_off(struct phy *phy)
603{
604 struct mtk_tphy *tphy = dev_get_priv(phy->dev);
605 struct mtk_phy_instance *instance = tphy->phys[phy->id];
606
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200607 if (instance->type == PHY_TYPE_USB2)
608 u2_phy_instance_power_off(tphy, instance);
609 else if (instance->type == PHY_TYPE_PCIE)
610 pcie_phy_instance_power_off(tphy, instance);
Ryder Lee235bad02019-08-22 12:26:50 +0200611
612 return 0;
613}
614
615static int mtk_phy_exit(struct phy *phy)
616{
617 struct mtk_tphy *tphy = dev_get_priv(phy->dev);
618 struct mtk_phy_instance *instance = tphy->phys[phy->id];
619
Chunfeng Yun4d4abbd2020-05-02 11:35:17 +0200620 clk_disable(&instance->da_ref_clk);
Ryder Lee235bad02019-08-22 12:26:50 +0200621 clk_disable(&instance->ref_clk);
622
623 return 0;
624}
625
626static int mtk_phy_xlate(struct phy *phy,
627 struct ofnode_phandle_args *args)
628{
629 struct mtk_tphy *tphy = dev_get_priv(phy->dev);
630 struct mtk_phy_instance *instance = NULL;
631 const struct device_node *phy_np = ofnode_to_np(args->node);
632 u32 index;
633
634 if (!phy_np) {
635 dev_err(phy->dev, "null pointer phy node\n");
636 return -EINVAL;
637 }
638
639 if (args->args_count < 1) {
640 dev_err(phy->dev, "invalid number of cells in 'phy' property\n");
641 return -EINVAL;
642 }
643
644 for (index = 0; index < tphy->nphys; index++)
645 if (phy_np == tphy->phys[index]->np) {
646 instance = tphy->phys[index];
647 break;
648 }
649
650 if (!instance) {
651 dev_err(phy->dev, "failed to find appropriate phy\n");
652 return -EINVAL;
653 }
654
655 phy->id = index;
656 instance->type = args->args[1];
657 if (!(instance->type == PHY_TYPE_USB2 ||
658 instance->type == PHY_TYPE_USB3 ||
Frank Wunderlichffbcde22020-08-13 10:20:45 +0200659 instance->type == PHY_TYPE_SATA ||
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200660 instance->type == PHY_TYPE_PCIE)) {
Ryder Lee235bad02019-08-22 12:26:50 +0200661 dev_err(phy->dev, "unsupported device type\n");
662 return -EINVAL;
663 }
664
Chunfeng Yund1ae8442020-05-02 11:35:16 +0200665 if (tphy->version == MTK_TPHY_V1) {
666 phy_v1_banks_init(tphy, instance);
667 } else if (tphy->version == MTK_TPHY_V2) {
668 phy_v2_banks_init(tphy, instance);
669 } else {
670 dev_err(phy->dev, "phy version is not supported\n");
671 return -EINVAL;
672 }
Ryder Lee235bad02019-08-22 12:26:50 +0200673
674 return 0;
675}
676
677static const struct phy_ops mtk_tphy_ops = {
678 .init = mtk_phy_init,
679 .exit = mtk_phy_exit,
680 .power_on = mtk_phy_power_on,
681 .power_off = mtk_phy_power_off,
682 .of_xlate = mtk_phy_xlate,
683};
684
685static int mtk_tphy_probe(struct udevice *dev)
686{
687 struct mtk_tphy *tphy = dev_get_priv(dev);
688 ofnode subnode;
689 int index = 0;
690
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200691 tphy->nphys = dev_get_child_count(dev);
Ryder Lee235bad02019-08-22 12:26:50 +0200692
693 tphy->phys = devm_kcalloc(dev, tphy->nphys, sizeof(*tphy->phys),
694 GFP_KERNEL);
695 if (!tphy->phys)
696 return -ENOMEM;
697
Chunfeng Yunee6eabb2020-05-02 11:35:15 +0200698 tphy->dev = dev;
Chunfeng Yund1ae8442020-05-02 11:35:16 +0200699 tphy->version = dev_get_driver_data(dev);
700
Frank Wunderlich626892a2020-08-20 16:37:52 +0200701 /* v1 has shared banks for usb/pcie mode, */
702 /* but not for sata mode */
Chunfeng Yund1ae8442020-05-02 11:35:16 +0200703 if (tphy->version == MTK_TPHY_V1) {
704 tphy->sif_base = dev_read_addr_ptr(dev);
Chunfeng Yund1ae8442020-05-02 11:35:16 +0200705 }
Ryder Lee235bad02019-08-22 12:26:50 +0200706
707 dev_for_each_subnode(subnode, dev) {
708 struct mtk_phy_instance *instance;
709 fdt_addr_t addr;
710 int err;
711
712 instance = devm_kzalloc(dev, sizeof(*instance), GFP_KERNEL);
713 if (!instance)
714 return -ENOMEM;
715
716 addr = ofnode_get_addr(subnode);
717 if (addr == FDT_ADDR_T_NONE)
718 return -ENOMEM;
719
720 instance->port_base = map_sysmem(addr, 0);
721 instance->index = index;
722 instance->np = ofnode_to_np(subnode);
723 tphy->phys[index] = instance;
724 index++;
725
Sean Anderson011bbfb2021-12-22 12:11:10 -0500726 err = clk_get_by_name_nodev_optional(subnode, "ref",
727 &instance->ref_clk);
Ryder Lee235bad02019-08-22 12:26:50 +0200728 if (err)
729 return err;
Chunfeng Yun4d4abbd2020-05-02 11:35:17 +0200730
Sean Anderson011bbfb2021-12-22 12:11:10 -0500731 err = clk_get_by_name_nodev_optional(subnode, "da_ref",
732 &instance->da_ref_clk);
Chunfeng Yun4d4abbd2020-05-02 11:35:17 +0200733 if (err)
734 return err;
Ryder Lee235bad02019-08-22 12:26:50 +0200735 }
736
737 return 0;
738}
739
740static const struct udevice_id mtk_tphy_id_table[] = {
Chunfeng Yund1ae8442020-05-02 11:35:16 +0200741 { .compatible = "mediatek,generic-tphy-v1", .data = MTK_TPHY_V1, },
742 { .compatible = "mediatek,generic-tphy-v2", .data = MTK_TPHY_V2, },
Ryder Lee235bad02019-08-22 12:26:50 +0200743 { }
744};
745
746U_BOOT_DRIVER(mtk_tphy) = {
747 .name = "mtk-tphy",
748 .id = UCLASS_PHY,
749 .of_match = mtk_tphy_id_table,
750 .ops = &mtk_tphy_ops,
751 .probe = mtk_tphy_probe,
Simon Glass41575d82020-12-03 16:55:17 -0700752 .priv_auto = sizeof(struct mtk_tphy),
Ryder Lee235bad02019-08-22 12:26:50 +0200753};