1 /* 2 * include/linux/clk/at91_pmc.h 3 * 4 * Copyright (C) 2005 Ivan Kokshaysky 5 * Copyright (C) SAN People 6 * 7 * Power Management Controller (PMC) - System peripherals registers. 8 * Based on AT91RM9200 datasheet revision E. 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation; either version 2 of the License, or 13 * (at your option) any later version. 14 */ 15 16 #ifndef AT91_PMC_H 17 #define AT91_PMC_H 18 19 #ifndef __ASSEMBLY__ 20 extern void __iomem *at91_pmc_base; 21 22 #define at91_pmc_read(field) \ 23 readl_relaxed(at91_pmc_base + field) 24 25 #define at91_pmc_write(field, value) \ 26 writel_relaxed(value, at91_pmc_base + field) 27 #else 28 .extern at91_pmc_base 29 #endif 30 31 #define AT91_PMC_SCER 0x00 /* System Clock Enable Register */ 32 #define AT91_PMC_SCDR 0x04 /* System Clock Disable Register */ 33 34 #define AT91_PMC_SCSR 0x08 /* System Clock Status Register */ 35 #define AT91_PMC_PCK (1 << 0) /* Processor Clock */ 36 #define AT91RM9200_PMC_UDP (1 << 1) /* USB Devcice Port Clock [AT91RM9200 only] */ 37 #define AT91RM9200_PMC_MCKUDP (1 << 2) /* USB Device Port Master Clock Automatic Disable on Suspend [AT91RM9200 only] */ 38 #define AT91RM9200_PMC_UHP (1 << 4) /* USB Host Port Clock [AT91RM9200 only] */ 39 #define AT91SAM926x_PMC_UHP (1 << 6) /* USB Host Port Clock [AT91SAM926x only] */ 40 #define AT91SAM926x_PMC_UDP (1 << 7) /* USB Devcice Port Clock [AT91SAM926x only] */ 41 #define AT91_PMC_PCK0 (1 << 8) /* Programmable Clock 0 */ 42 #define AT91_PMC_PCK1 (1 << 9) /* Programmable Clock 1 */ 43 #define AT91_PMC_PCK2 (1 << 10) /* Programmable Clock 2 */ 44 #define AT91_PMC_PCK3 (1 << 11) /* Programmable Clock 3 */ 45 #define AT91_PMC_PCK4 (1 << 12) /* Programmable Clock 4 [AT572D940HF only] */ 46 #define AT91_PMC_HCK0 (1 << 16) /* AHB Clock (USB host) [AT91SAM9261 only] */ 47 #define AT91_PMC_HCK1 (1 << 17) /* AHB Clock (LCD) [AT91SAM9261 only] */ 48 49 #define AT91_PMC_PCER 0x10 /* Peripheral Clock Enable Register */ 50 #define AT91_PMC_PCDR 0x14 /* Peripheral Clock Disable Register */ 51 #define AT91_PMC_PCSR 0x18 /* Peripheral Clock Status Register */ 52 53 #define AT91_CKGR_UCKR 0x1C /* UTMI Clock Register [some SAM9] */ 54 #define AT91_PMC_UPLLEN (1 << 16) /* UTMI PLL Enable */ 55 #define AT91_PMC_UPLLCOUNT (0xf << 20) /* UTMI PLL Start-up Time */ 56 #define AT91_PMC_BIASEN (1 << 24) /* UTMI BIAS Enable */ 57 #define AT91_PMC_BIASCOUNT (0xf << 28) /* UTMI BIAS Start-up Time */ 58 59 #define AT91_CKGR_MOR 0x20 /* Main Oscillator Register [not on SAM9RL] */ 60 #define AT91_PMC_MOSCEN (1 << 0) /* Main Oscillator Enable */ 61 #define AT91_PMC_OSCBYPASS (1 << 1) /* Oscillator Bypass */ 62 #define AT91_PMC_MOSCRCEN (1 << 3) /* Main On-Chip RC Oscillator Enable [some SAM9] */ 63 #define AT91_PMC_OSCOUNT (0xff << 8) /* Main Oscillator Start-up Time */ 64 #define AT91_PMC_KEY (0x37 << 16) /* MOR Writing Key */ 65 #define AT91_PMC_MOSCSEL (1 << 24) /* Main Oscillator Selection [some SAM9] */ 66 #define AT91_PMC_CFDEN (1 << 25) /* Clock Failure Detector Enable [some SAM9] */ 67 68 #define AT91_CKGR_MCFR 0x24 /* Main Clock Frequency Register */ 69 #define AT91_PMC_MAINF (0xffff << 0) /* Main Clock Frequency */ 70 #define AT91_PMC_MAINRDY (1 << 16) /* Main Clock Ready */ 71 72 #define AT91_CKGR_PLLAR 0x28 /* PLL A Register */ 73 #define AT91_CKGR_PLLBR 0x2c /* PLL B Register */ 74 #define AT91_PMC_DIV (0xff << 0) /* Divider */ 75 #define AT91_PMC_PLLCOUNT (0x3f << 8) /* PLL Counter */ 76 #define AT91_PMC_OUT (3 << 14) /* PLL Clock Frequency Range */ 77 #define AT91_PMC_MUL (0x7ff << 16) /* PLL Multiplier */ 78 #define AT91_PMC_MUL_GET(n) ((n) >> 16 & 0x7ff) 79 #define AT91_PMC3_MUL (0x7f << 18) /* PLL Multiplier [SAMA5 only] */ 80 #define AT91_PMC3_MUL_GET(n) ((n) >> 18 & 0x7f) 81 #define AT91_PMC_USBDIV (3 << 28) /* USB Divisor (PLLB only) */ 82 #define AT91_PMC_USBDIV_1 (0 << 28) 83 #define AT91_PMC_USBDIV_2 (1 << 28) 84 #define AT91_PMC_USBDIV_4 (2 << 28) 85 #define AT91_PMC_USB96M (1 << 28) /* Divider by 2 Enable (PLLB only) */ 86 87 #define AT91_PMC_MCKR 0x30 /* Master Clock Register */ 88 #define AT91_PMC_CSS (3 << 0) /* Master Clock Selection */ 89 #define AT91_PMC_CSS_SLOW (0 << 0) 90 #define AT91_PMC_CSS_MAIN (1 << 0) 91 #define AT91_PMC_CSS_PLLA (2 << 0) 92 #define AT91_PMC_CSS_PLLB (3 << 0) 93 #define AT91_PMC_CSS_UPLL (3 << 0) /* [some SAM9 only] */ 94 #define PMC_PRES_OFFSET 2 95 #define AT91_PMC_PRES (7 << PMC_PRES_OFFSET) /* Master Clock Prescaler */ 96 #define AT91_PMC_PRES_1 (0 << PMC_PRES_OFFSET) 97 #define AT91_PMC_PRES_2 (1 << PMC_PRES_OFFSET) 98 #define AT91_PMC_PRES_4 (2 << PMC_PRES_OFFSET) 99 #define AT91_PMC_PRES_8 (3 << PMC_PRES_OFFSET) 100 #define AT91_PMC_PRES_16 (4 << PMC_PRES_OFFSET) 101 #define AT91_PMC_PRES_32 (5 << PMC_PRES_OFFSET) 102 #define AT91_PMC_PRES_64 (6 << PMC_PRES_OFFSET) 103 #define PMC_ALT_PRES_OFFSET 4 104 #define AT91_PMC_ALT_PRES (7 << PMC_ALT_PRES_OFFSET) /* Master Clock Prescaler [alternate location] */ 105 #define AT91_PMC_ALT_PRES_1 (0 << PMC_ALT_PRES_OFFSET) 106 #define AT91_PMC_ALT_PRES_2 (1 << PMC_ALT_PRES_OFFSET) 107 #define AT91_PMC_ALT_PRES_4 (2 << PMC_ALT_PRES_OFFSET) 108 #define AT91_PMC_ALT_PRES_8 (3 << PMC_ALT_PRES_OFFSET) 109 #define AT91_PMC_ALT_PRES_16 (4 << PMC_ALT_PRES_OFFSET) 110 #define AT91_PMC_ALT_PRES_32 (5 << PMC_ALT_PRES_OFFSET) 111 #define AT91_PMC_ALT_PRES_64 (6 << PMC_ALT_PRES_OFFSET) 112 #define AT91_PMC_MDIV (3 << 8) /* Master Clock Division */ 113 #define AT91RM9200_PMC_MDIV_1 (0 << 8) /* [AT91RM9200 only] */ 114 #define AT91RM9200_PMC_MDIV_2 (1 << 8) 115 #define AT91RM9200_PMC_MDIV_3 (2 << 8) 116 #define AT91RM9200_PMC_MDIV_4 (3 << 8) 117 #define AT91SAM9_PMC_MDIV_1 (0 << 8) /* [SAM9 only] */ 118 #define AT91SAM9_PMC_MDIV_2 (1 << 8) 119 #define AT91SAM9_PMC_MDIV_4 (2 << 8) 120 #define AT91SAM9_PMC_MDIV_6 (3 << 8) /* [some SAM9 only] */ 121 #define AT91SAM9_PMC_MDIV_3 (3 << 8) /* [some SAM9 only] */ 122 #define AT91_PMC_PDIV (1 << 12) /* Processor Clock Division [some SAM9 only] */ 123 #define AT91_PMC_PDIV_1 (0 << 12) 124 #define AT91_PMC_PDIV_2 (1 << 12) 125 #define AT91_PMC_PLLADIV2 (1 << 12) /* PLLA divisor by 2 [some SAM9 only] */ 126 #define AT91_PMC_PLLADIV2_OFF (0 << 12) 127 #define AT91_PMC_PLLADIV2_ON (1 << 12) 128 #define AT91_PMC_H32MXDIV BIT(24) 129 130 #define AT91_PMC_USB 0x38 /* USB Clock Register [some SAM9 only] */ 131 #define AT91_PMC_USBS (0x1 << 0) /* USB OHCI Input clock selection */ 132 #define AT91_PMC_USBS_PLLA (0 << 0) 133 #define AT91_PMC_USBS_UPLL (1 << 0) 134 #define AT91_PMC_USBS_PLLB (1 << 0) /* [AT91SAMN12 only] */ 135 #define AT91_PMC_OHCIUSBDIV (0xF << 8) /* Divider for USB OHCI Clock */ 136 #define AT91_PMC_OHCIUSBDIV_1 (0x0 << 8) 137 #define AT91_PMC_OHCIUSBDIV_2 (0x1 << 8) 138 139 #define AT91_PMC_SMD 0x3c /* Soft Modem Clock Register [some SAM9 only] */ 140 #define AT91_PMC_SMDS (0x1 << 0) /* SMD input clock selection */ 141 #define AT91_PMC_SMD_DIV (0x1f << 8) /* SMD input clock divider */ 142 #define AT91_PMC_SMDDIV(n) (((n) << 8) & AT91_PMC_SMD_DIV) 143 144 #define AT91_PMC_PCKR(n) (0x40 + ((n) * 4)) /* Programmable Clock 0-N Registers */ 145 #define AT91_PMC_ALT_PCKR_CSS (0x7 << 0) /* Programmable Clock Source Selection [alternate length] */ 146 #define AT91_PMC_CSS_MASTER (4 << 0) /* [some SAM9 only] */ 147 #define AT91_PMC_CSSMCK (0x1 << 8) /* CSS or Master Clock Selection */ 148 #define AT91_PMC_CSSMCK_CSS (0 << 8) 149 #define AT91_PMC_CSSMCK_MCK (1 << 8) 150 151 #define AT91_PMC_IER 0x60 /* Interrupt Enable Register */ 152 #define AT91_PMC_IDR 0x64 /* Interrupt Disable Register */ 153 #define AT91_PMC_SR 0x68 /* Status Register */ 154 #define AT91_PMC_MOSCS (1 << 0) /* MOSCS Flag */ 155 #define AT91_PMC_LOCKA (1 << 1) /* PLLA Lock */ 156 #define AT91_PMC_LOCKB (1 << 2) /* PLLB Lock */ 157 #define AT91_PMC_MCKRDY (1 << 3) /* Master Clock */ 158 #define AT91_PMC_LOCKU (1 << 6) /* UPLL Lock [some SAM9] */ 159 #define AT91_PMC_OSCSEL (1 << 7) /* Slow Oscillator Selection [some SAM9] */ 160 #define AT91_PMC_PCK0RDY (1 << 8) /* Programmable Clock 0 */ 161 #define AT91_PMC_PCK1RDY (1 << 9) /* Programmable Clock 1 */ 162 #define AT91_PMC_PCK2RDY (1 << 10) /* Programmable Clock 2 */ 163 #define AT91_PMC_PCK3RDY (1 << 11) /* Programmable Clock 3 */ 164 #define AT91_PMC_MOSCSELS (1 << 16) /* Main Oscillator Selection [some SAM9] */ 165 #define AT91_PMC_MOSCRCS (1 << 17) /* Main On-Chip RC [some SAM9] */ 166 #define AT91_PMC_CFDEV (1 << 18) /* Clock Failure Detector Event [some SAM9] */ 167 #define AT91_PMC_IMR 0x6c /* Interrupt Mask Register */ 168 169 #define AT91_PMC_PLLICPR 0x80 /* PLL Charge Pump Current Register */ 170 171 #define AT91_PMC_PROT 0xe4 /* Write Protect Mode Register [some SAM9] */ 172 #define AT91_PMC_WPEN (0x1 << 0) /* Write Protect Enable */ 173 #define AT91_PMC_WPKEY (0xffffff << 8) /* Write Protect Key */ 174 #define AT91_PMC_PROTKEY (0x504d43 << 8) /* Activation Code */ 175 176 #define AT91_PMC_WPSR 0xe8 /* Write Protect Status Register [some SAM9] */ 177 #define AT91_PMC_WPVS (0x1 << 0) /* Write Protect Violation Status */ 178 #define AT91_PMC_WPVSRC (0xffff << 8) /* Write Protect Violation Source */ 179 180 #define AT91_PMC_PCER1 0x100 /* Peripheral Clock Enable Register 1 [SAMA5 only]*/ 181 #define AT91_PMC_PCDR1 0x104 /* Peripheral Clock Enable Register 1 */ 182 #define AT91_PMC_PCSR1 0x108 /* Peripheral Clock Enable Register 1 */ 183 184 #define AT91_PMC_PCR 0x10c /* Peripheral Control Register [some SAM9 and SAMA5] */ 185 #define AT91_PMC_PCR_PID (0x3f << 0) /* Peripheral ID */ 186 #define AT91_PMC_PCR_CMD (0x1 << 12) /* Command (read=0, write=1) */ 187 #define AT91_PMC_PCR_DIV(n) ((n) << 16) /* Divisor Value */ 188 #define AT91_PMC_PCR_DIV0 0x0 /* Peripheral clock is MCK */ 189 #define AT91_PMC_PCR_DIV2 0x1 /* Peripheral clock is MCK/2 */ 190 #define AT91_PMC_PCR_DIV4 0x2 /* Peripheral clock is MCK/4 */ 191 #define AT91_PMC_PCR_DIV8 0x3 /* Peripheral clock is MCK/8 */ 192 #define AT91_PMC_PCR_EN (0x1 << 28) /* Enable */ 193 194 #endif 195