1/* SPDX-License-Identifier: GPL-2.0-or-later */
2/*
3 * include/linux/clk/at91_pmc.h
4 *
5 * Copyright (C) 2005 Ivan Kokshaysky
6 * Copyright (C) SAN People
7 *
8 * Power Management Controller (PMC) - System peripherals registers.
9 * Based on AT91RM9200 datasheet revision E.
10 */
11
12#ifndef AT91_PMC_H
13#define AT91_PMC_H
14
15#include <linux/bits.h>
16
17#define AT91_PMC_V1 (1) /* PMC version 1 */
18#define AT91_PMC_V2 (2) /* PMC version 2 [SAM9X60] */
19
20#define AT91_PMC_SCER 0x00 /* System Clock Enable Register */
21#define AT91_PMC_SCDR 0x04 /* System Clock Disable Register */
22
23#define AT91_PMC_SCSR 0x08 /* System Clock Status Register */
24#define AT91_PMC_PCK (1 << 0) /* Processor Clock */
25#define AT91RM9200_PMC_UDP (1 << 1) /* USB Devcice Port Clock [AT91RM9200 only] */
26#define AT91RM9200_PMC_MCKUDP (1 << 2) /* USB Device Port Master Clock Automatic Disable on Suspend [AT91RM9200 only] */
27#define AT91RM9200_PMC_UHP (1 << 4) /* USB Host Port Clock [AT91RM9200 only] */
28#define AT91SAM926x_PMC_UHP (1 << 6) /* USB Host Port Clock [AT91SAM926x only] */
29#define AT91SAM926x_PMC_UDP (1 << 7) /* USB Devcice Port Clock [AT91SAM926x only] */
30#define AT91_PMC_PCK0 (1 << 8) /* Programmable Clock 0 */
31#define AT91_PMC_PCK1 (1 << 9) /* Programmable Clock 1 */
32#define AT91_PMC_PCK2 (1 << 10) /* Programmable Clock 2 */
33#define AT91_PMC_PCK3 (1 << 11) /* Programmable Clock 3 */
34#define AT91_PMC_PCK4 (1 << 12) /* Programmable Clock 4 [AT572D940HF only] */
35#define AT91_PMC_HCK0 (1 << 16) /* AHB Clock (USB host) [AT91SAM9261 only] */
36#define AT91_PMC_HCK1 (1 << 17) /* AHB Clock (LCD) [AT91SAM9261 only] */
37
38#define AT91_PMC_PLL_CTRL0 0x0C /* PLL Control Register 0 [for SAM9X60] */
39#define AT91_PMC_PLL_CTRL0_ENPLL (1 << 28) /* Enable PLL */
40#define AT91_PMC_PLL_CTRL0_ENPLLCK (1 << 29) /* Enable PLL clock for PMC */
41#define AT91_PMC_PLL_CTRL0_ENLOCK (1 << 31) /* Enable PLL lock */
42
43#define AT91_PMC_PLL_CTRL1 0x10 /* PLL Control Register 1 [for SAM9X60] */
44
45#define AT91_PMC_PCER 0x10 /* Peripheral Clock Enable Register */
46#define AT91_PMC_PCDR 0x14 /* Peripheral Clock Disable Register */
47#define AT91_PMC_PCSR 0x18 /* Peripheral Clock Status Register */
48
49#define AT91_PMC_PLL_ACR 0x18 /* PLL Analog Control Register [for SAM9X60] */
50#define AT91_PMC_PLL_ACR_DEFAULT_UPLL UL(0x12020010) /* Default PLL ACR value for UPLL */
51#define AT91_PMC_PLL_ACR_DEFAULT_PLLA UL(0x00020010) /* Default PLL ACR value for PLLA */
52#define AT91_PMC_PLL_ACR_UTMIVR (1 << 12) /* UPLL Voltage regulator Control */
53#define AT91_PMC_PLL_ACR_UTMIBG (1 << 13) /* UPLL Bandgap Control */
54
55#define AT91_CKGR_UCKR 0x1C /* UTMI Clock Register [some SAM9] */
56#define AT91_PMC_UPLLEN (1 << 16) /* UTMI PLL Enable */
57#define AT91_PMC_UPLLCOUNT (0xf << 20) /* UTMI PLL Start-up Time */
58#define AT91_PMC_BIASEN (1 << 24) /* UTMI BIAS Enable */
59#define AT91_PMC_BIASCOUNT (0xf << 28) /* UTMI BIAS Start-up Time */
60
61#define AT91_PMC_PLL_UPDT 0x1C /* PMC PLL update register [for SAM9X60] */
62#define AT91_PMC_PLL_UPDT_UPDATE (1 << 8) /* Update PLL settings */
63#define AT91_PMC_PLL_UPDT_ID (1 << 0) /* PLL ID */
64#define AT91_PMC_PLL_UPDT_ID_MSK (0xf) /* PLL ID mask */
65#define AT91_PMC_PLL_UPDT_STUPTIM (0xff << 16) /* Startup time */
66
67#define AT91_CKGR_MOR 0x20 /* Main Oscillator Register [not on SAM9RL] */
68#define AT91_PMC_MOSCEN (1 << 0) /* Main Oscillator Enable */
69#define AT91_PMC_OSCBYPASS (1 << 1) /* Oscillator Bypass */
70#define AT91_PMC_WAITMODE (1 << 2) /* Wait Mode Command */
71#define AT91_PMC_MOSCRCEN (1 << 3) /* Main On-Chip RC Oscillator Enable [some SAM9] */
72#define AT91_PMC_OSCOUNT (0xff << 8) /* Main Oscillator Start-up Time */
73#define AT91_PMC_KEY_MASK (0xff << 16)
74#define AT91_PMC_KEY (0x37 << 16) /* MOR Writing Key */
75#define AT91_PMC_MOSCSEL (1 << 24) /* Main Oscillator Selection [some SAM9] */
76#define AT91_PMC_CFDEN (1 << 25) /* Clock Failure Detector Enable [some SAM9] */
77
78#define AT91_CKGR_MCFR 0x24 /* Main Clock Frequency Register */
79#define AT91_PMC_MAINF (0xffff << 0) /* Main Clock Frequency */
80#define AT91_PMC_MAINRDY (1 << 16) /* Main Clock Ready */
81
82#define AT91_CKGR_PLLAR 0x28 /* PLL A Register */
83
84#define AT91_PMC_RATIO 0x2c /* Processor clock ratio register [SAMA7G5 only] */
85#define AT91_PMC_RATIO_RATIO (0xf) /* CPU clock ratio. */
86
87#define AT91_CKGR_PLLBR 0x2c /* PLL B Register */
88#define AT91_PMC_DIV (0xff << 0) /* Divider */
89#define AT91_PMC_PLLCOUNT (0x3f << 8) /* PLL Counter */
90#define AT91_PMC_OUT (3 << 14) /* PLL Clock Frequency Range */
91#define AT91_PMC_MUL (0x7ff << 16) /* PLL Multiplier */
92#define AT91_PMC_MUL_GET(n) ((n) >> 16 & 0x7ff)
93#define AT91_PMC3_MUL (0x7f << 18) /* PLL Multiplier [SAMA5 only] */
94#define AT91_PMC3_MUL_GET(n) ((n) >> 18 & 0x7f)
95#define AT91_PMC_USBDIV (3 << 28) /* USB Divisor (PLLB only) */
96#define AT91_PMC_USBDIV_1 (0 << 28)
97#define AT91_PMC_USBDIV_2 (1 << 28)
98#define AT91_PMC_USBDIV_4 (2 << 28)
99#define AT91_PMC_USB96M (1 << 28) /* Divider by 2 Enable (PLLB only) */
100
101#define AT91_PMC_CPU_CKR 0x28 /* CPU Clock Register */
102
103#define AT91_PMC_MCKR 0x30 /* Master Clock Register */
104#define AT91_PMC_CSS (3 << 0) /* Master Clock Selection */
105#define AT91_PMC_CSS_SLOW (0 << 0)
106#define AT91_PMC_CSS_MAIN (1 << 0)
107#define AT91_PMC_CSS_PLLA (2 << 0)
108#define AT91_PMC_CSS_PLLB (3 << 0)
109#define AT91_PMC_CSS_UPLL (3 << 0) /* [some SAM9 only] */
110#define PMC_PRES_OFFSET 2
111#define AT91_PMC_PRES (7 << PMC_PRES_OFFSET) /* Master Clock Prescaler */
112#define AT91_PMC_PRES_1 (0 << PMC_PRES_OFFSET)
113#define AT91_PMC_PRES_2 (1 << PMC_PRES_OFFSET)
114#define AT91_PMC_PRES_4 (2 << PMC_PRES_OFFSET)
115#define AT91_PMC_PRES_8 (3 << PMC_PRES_OFFSET)
116#define AT91_PMC_PRES_16 (4 << PMC_PRES_OFFSET)
117#define AT91_PMC_PRES_32 (5 << PMC_PRES_OFFSET)
118#define AT91_PMC_PRES_64 (6 << PMC_PRES_OFFSET)
119#define PMC_ALT_PRES_OFFSET 4
120#define AT91_PMC_ALT_PRES (7 << PMC_ALT_PRES_OFFSET) /* Master Clock Prescaler [alternate location] */
121#define AT91_PMC_ALT_PRES_1 (0 << PMC_ALT_PRES_OFFSET)
122#define AT91_PMC_ALT_PRES_2 (1 << PMC_ALT_PRES_OFFSET)
123#define AT91_PMC_ALT_PRES_4 (2 << PMC_ALT_PRES_OFFSET)
124#define AT91_PMC_ALT_PRES_8 (3 << PMC_ALT_PRES_OFFSET)
125#define AT91_PMC_ALT_PRES_16 (4 << PMC_ALT_PRES_OFFSET)
126#define AT91_PMC_ALT_PRES_32 (5 << PMC_ALT_PRES_OFFSET)
127#define AT91_PMC_ALT_PRES_64 (6 << PMC_ALT_PRES_OFFSET)
128#define AT91_PMC_MDIV (3 << 8) /* Master Clock Division */
129#define AT91RM9200_PMC_MDIV_1 (0 << 8) /* [AT91RM9200 only] */
130#define AT91RM9200_PMC_MDIV_2 (1 << 8)
131#define AT91RM9200_PMC_MDIV_3 (2 << 8)
132#define AT91RM9200_PMC_MDIV_4 (3 << 8)
133#define AT91SAM9_PMC_MDIV_1 (0 << 8) /* [SAM9 only] */
134#define AT91SAM9_PMC_MDIV_2 (1 << 8)
135#define AT91SAM9_PMC_MDIV_4 (2 << 8)
136#define AT91SAM9_PMC_MDIV_6 (3 << 8) /* [some SAM9 only] */
137#define AT91SAM9_PMC_MDIV_3 (3 << 8) /* [some SAM9 only] */
138#define AT91_PMC_PDIV (1 << 12) /* Processor Clock Division [some SAM9 only] */
139#define AT91_PMC_PDIV_1 (0 << 12)
140#define AT91_PMC_PDIV_2 (1 << 12)
141#define AT91_PMC_PLLADIV2 (1 << 12) /* PLLA divisor by 2 [some SAM9 only] */
142#define AT91_PMC_PLLADIV2_OFF (0 << 12)
143#define AT91_PMC_PLLADIV2_ON (1 << 12)
144#define AT91_PMC_H32MXDIV BIT(24)
145
146#define AT91_PMC_MCR_V2 0x30 /* Master Clock Register [SAMA7G5 only] */
147#define AT91_PMC_MCR_V2_ID_MSK (0xF)
148#define AT91_PMC_MCR_V2_ID(_id) ((_id) & AT91_PMC_MCR_V2_ID_MSK)
149#define AT91_PMC_MCR_V2_CMD (1 << 7)
150#define AT91_PMC_MCR_V2_DIV (7 << 8)
151#define AT91_PMC_MCR_V2_DIV1 (0 << 8)
152#define AT91_PMC_MCR_V2_DIV2 (1 << 8)
153#define AT91_PMC_MCR_V2_DIV4 (2 << 8)
154#define AT91_PMC_MCR_V2_DIV8 (3 << 8)
155#define AT91_PMC_MCR_V2_DIV16 (4 << 8)
156#define AT91_PMC_MCR_V2_DIV32 (5 << 8)
157#define AT91_PMC_MCR_V2_DIV64 (6 << 8)
158#define AT91_PMC_MCR_V2_DIV3 (7 << 8)
159#define AT91_PMC_MCR_V2_CSS (0x1F << 16)
160#define AT91_PMC_MCR_V2_CSS_MD_SLCK (0 << 16)
161#define AT91_PMC_MCR_V2_CSS_TD_SLCK (1 << 16)
162#define AT91_PMC_MCR_V2_CSS_MAINCK (2 << 16)
163#define AT91_PMC_MCR_V2_CSS_MCK0 (3 << 16)
164#define AT91_PMC_MCR_V2_CSS_SYSPLL (5 << 16)
165#define AT91_PMC_MCR_V2_CSS_DDRPLL (6 << 16)
166#define AT91_PMC_MCR_V2_CSS_IMGPLL (7 << 16)
167#define AT91_PMC_MCR_V2_CSS_BAUDPLL (8 << 16)
168#define AT91_PMC_MCR_V2_CSS_AUDIOPLL (9 << 16)
169#define AT91_PMC_MCR_V2_CSS_ETHPLL (10 << 16)
170#define AT91_PMC_MCR_V2_EN (1 << 28)
171
172#define AT91_PMC_XTALF 0x34 /* Main XTAL Frequency Register [SAMA7G5 only] */
173
174#define AT91_PMC_USB 0x38 /* USB Clock Register [some SAM9 only] */
175#define AT91_PMC_USBS (0x1 << 0) /* USB OHCI Input clock selection */
176#define AT91_PMC_USBS_PLLA (0 << 0)
177#define AT91_PMC_USBS_UPLL (1 << 0)
178#define AT91_PMC_USBS_PLLB (1 << 0) /* [AT91SAMN12 only] */
179#define AT91_PMC_OHCIUSBDIV (0xF << 8) /* Divider for USB OHCI Clock */
180#define AT91_PMC_OHCIUSBDIV_1 (0x0 << 8)
181#define AT91_PMC_OHCIUSBDIV_2 (0x1 << 8)
182
183#define AT91_PMC_SMD 0x3c /* Soft Modem Clock Register [some SAM9 only] */
184#define AT91_PMC_SMDS (0x1 << 0) /* SMD input clock selection */
185#define AT91_PMC_SMD_DIV (0x1f << 8) /* SMD input clock divider */
186#define AT91_PMC_SMDDIV(n) (((n) << 8) & AT91_PMC_SMD_DIV)
187
188#define AT91_PMC_PCKR(n) (0x40 + ((n) * 4)) /* Programmable Clock 0-N Registers */
189#define AT91_PMC_ALT_PCKR_CSS (0x7 << 0) /* Programmable Clock Source Selection [alternate length] */
190#define AT91_PMC_CSS_MASTER (4 << 0) /* [some SAM9 only] */
191#define AT91_PMC_CSSMCK (0x1 << 8) /* CSS or Master Clock Selection */
192#define AT91_PMC_CSSMCK_CSS (0 << 8)
193#define AT91_PMC_CSSMCK_MCK (1 << 8)
194
195#define AT91_PMC_IER 0x60 /* Interrupt Enable Register */
196#define AT91_PMC_IDR 0x64 /* Interrupt Disable Register */
197#define AT91_PMC_SR 0x68 /* Status Register */
198#define AT91_PMC_MOSCS (1 << 0) /* MOSCS Flag */
199#define AT91_PMC_LOCKA (1 << 1) /* PLLA Lock */
200#define AT91_PMC_LOCKB (1 << 2) /* PLLB Lock */
201#define AT91_PMC_MCKRDY (1 << 3) /* Master Clock */
202#define AT91_PMC_LOCKU (1 << 6) /* UPLL Lock [some SAM9] */
203#define AT91_PMC_OSCSEL (1 << 7) /* Slow Oscillator Selection [some SAM9] */
204#define AT91_PMC_PCK0RDY (1 << 8) /* Programmable Clock 0 */
205#define AT91_PMC_PCK1RDY (1 << 9) /* Programmable Clock 1 */
206#define AT91_PMC_PCK2RDY (1 << 10) /* Programmable Clock 2 */
207#define AT91_PMC_PCK3RDY (1 << 11) /* Programmable Clock 3 */
208#define AT91_PMC_MOSCSELS (1 << 16) /* Main Oscillator Selection [some SAM9] */
209#define AT91_PMC_MOSCRCS (1 << 17) /* Main On-Chip RC [some SAM9] */
210#define AT91_PMC_CFDEV (1 << 18) /* Clock Failure Detector Event [some SAM9] */
211#define AT91_PMC_GCKRDY (1 << 24) /* Generated Clocks */
212#define AT91_PMC_MCKXRDY (1 << 26) /* Master Clock x [x=1..4] Ready Status */
213#define AT91_PMC_IMR 0x6c /* Interrupt Mask Register */
214
215#define AT91_PMC_FSMR 0x70 /* Fast Startup Mode Register */
216#define AT91_PMC_FSTT(n) BIT(n)
217#define AT91_PMC_RTTAL BIT(16)
218#define AT91_PMC_RTCAL BIT(17) /* RTC Alarm Enable */
219#define AT91_PMC_USBAL BIT(18) /* USB Resume Enable */
220#define AT91_PMC_SDMMC_CD BIT(19) /* SDMMC Card Detect Enable */
221#define AT91_PMC_LPM BIT(20) /* Low-power Mode */
222#define AT91_PMC_RXLP_MCE BIT(24) /* Backup UART Receive Enable */
223#define AT91_PMC_ACC_CE BIT(25) /* ACC Enable */
224
225#define AT91_PMC_FSPR 0x74 /* Fast Startup Polarity Reg */
226
227#define AT91_PMC_FS_INPUT_MASK 0x7ff
228
229#define AT91_PMC_PLLICPR 0x80 /* PLL Charge Pump Current Register */
230
231#define AT91_PMC_PROT 0xe4 /* Write Protect Mode Register [some SAM9] */
232#define AT91_PMC_WPEN (0x1 << 0) /* Write Protect Enable */
233#define AT91_PMC_WPKEY (0xffffff << 8) /* Write Protect Key */
234#define AT91_PMC_PROTKEY (0x504d43 << 8) /* Activation Code */
235
236#define AT91_PMC_WPSR 0xe8 /* Write Protect Status Register [some SAM9] */
237#define AT91_PMC_WPVS (0x1 << 0) /* Write Protect Violation Status */
238#define AT91_PMC_WPVSRC (0xffff << 8) /* Write Protect Violation Source */
239
240#define AT91_PMC_PLL_ISR0 0xEC /* PLL Interrupt Status Register 0 [SAM9X60 only] */
241
242#define AT91_PMC_PCER1 0x100 /* Peripheral Clock Enable Register 1 [SAMA5 only]*/
243#define AT91_PMC_PCDR1 0x104 /* Peripheral Clock Enable Register 1 */
244#define AT91_PMC_PCSR1 0x108 /* Peripheral Clock Enable Register 1 */
245
246#define AT91_PMC_PCR 0x10c /* Peripheral Control Register [some SAM9 and SAMA5] */
247#define AT91_PMC_PCR_PID_MASK 0x3f
248#define AT91_PMC_PCR_CMD (0x1 << 12) /* Command (read=0, write=1) */
249#define AT91_PMC_PCR_GCKDIV_MASK GENMASK(27, 20)
250#define AT91_PMC_PCR_EN (0x1 << 28) /* Enable */
251#define AT91_PMC_PCR_GCKEN (0x1 << 29) /* GCK Enable */
252
253#define AT91_PMC_AUDIO_PLL0 0x14c
254#define AT91_PMC_AUDIO_PLL_PLLEN (1 << 0)
255#define AT91_PMC_AUDIO_PLL_PADEN (1 << 1)
256#define AT91_PMC_AUDIO_PLL_PMCEN (1 << 2)
257#define AT91_PMC_AUDIO_PLL_RESETN (1 << 3)
258#define AT91_PMC_AUDIO_PLL_ND_OFFSET 8
259#define AT91_PMC_AUDIO_PLL_ND_MASK (0x7f << AT91_PMC_AUDIO_PLL_ND_OFFSET)
260#define AT91_PMC_AUDIO_PLL_ND(n) ((n) << AT91_PMC_AUDIO_PLL_ND_OFFSET)
261#define AT91_PMC_AUDIO_PLL_QDPMC_OFFSET 16
262#define AT91_PMC_AUDIO_PLL_QDPMC_MASK (0x7f << AT91_PMC_AUDIO_PLL_QDPMC_OFFSET)
263#define AT91_PMC_AUDIO_PLL_QDPMC(n) ((n) << AT91_PMC_AUDIO_PLL_QDPMC_OFFSET)
264
265#define AT91_PMC_AUDIO_PLL1 0x150
266#define AT91_PMC_AUDIO_PLL_FRACR_MASK 0x3fffff
267#define AT91_PMC_AUDIO_PLL_QDPAD_OFFSET 24
268#define AT91_PMC_AUDIO_PLL_QDPAD_MASK (0x7f << AT91_PMC_AUDIO_PLL_QDPAD_OFFSET)
269#define AT91_PMC_AUDIO_PLL_QDPAD(n) ((n) << AT91_PMC_AUDIO_PLL_QDPAD_OFFSET)
270#define AT91_PMC_AUDIO_PLL_QDPAD_DIV_OFFSET AT91_PMC_AUDIO_PLL_QDPAD_OFFSET
271#define AT91_PMC_AUDIO_PLL_QDPAD_DIV_MASK (0x3 << AT91_PMC_AUDIO_PLL_QDPAD_DIV_OFFSET)
272#define AT91_PMC_AUDIO_PLL_QDPAD_DIV(n) ((n) << AT91_PMC_AUDIO_PLL_QDPAD_DIV_OFFSET)
273#define AT91_PMC_AUDIO_PLL_QDPAD_EXTDIV_OFFSET 26
274#define AT91_PMC_AUDIO_PLL_QDPAD_EXTDIV_MAX 0x1f
275#define AT91_PMC_AUDIO_PLL_QDPAD_EXTDIV_MASK (AT91_PMC_AUDIO_PLL_QDPAD_EXTDIV_MAX << AT91_PMC_AUDIO_PLL_QDPAD_EXTDIV_OFFSET)
276#define AT91_PMC_AUDIO_PLL_QDPAD_EXTDIV(n) ((n) << AT91_PMC_AUDIO_PLL_QDPAD_EXTDIV_OFFSET)
277
278#endif
279

source code of linux/include/linux/clk/at91_pmc.h