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/*- * Copyright (c) 2005 M. Warner Losh. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ /* $FreeBSD: release/9.1.0/sys/arm/at91/at91_pmcreg.h 213498 2010-10-06 22:40:27Z cognet $ */ #ifndef ARM_AT91_AT91_PMCREG_H #define ARM_AT91_AT91_PMCREG_H /* Registers */ #define PMC_SCER 0x00 /* System Clock Enable Register */ #define PMC_SCDR 0x04 /* System Clock Disable Register */ #define PMC_SCSR 0x08 /* System Clock Status Register */ /* 0x0c reserved */ #define PMC_PCER 0x10 /* Peripheral Clock Enable Register */ #define PMC_PCDR 0x14 /* Peripheral Clock Disable Register */ #define PMC_PCSR 0x18 /* Peripheral Clock Status Register */ /* 0x1c reserved */ #define CKGR_MOR 0x20 /* Main Oscillator Register */ #define CKGR_MCFR 0x24 /* Main Clock Frequency Register */ #define CKGR_PLLAR 0x28 /* PLL A Register */ #define CKGR_PLLBR 0x2c /* PLL B Register */ #define PMC_MCKR 0x30 /* Master Clock Register */ /* 0x34 reserved */ /* 0x38 reserved */ /* 0x3c reserved */ #define PMC_PCK0 0x40 /* Programmable Clock 0 Register */ #define PMC_PCK1 0x44 /* Programmable Clock 1 Register */ #define PMC_PCK2 0x48 /* Programmable Clock 2 Register */ #define PMC_PCK3 0x4c /* Programmable Clock 3 Register */ /* 0x50 reserved */ /* 0x54 reserved */ /* 0x58 reserved */ /* 0x5c reserved */ #define PMC_IER 0x60 /* Interrupt Enable Register */ #define PMC_IDR 0x64 /* Interrupt Disable Register */ #define PMC_SR 0x68 /* Status Register */ #define PMC_IMR 0x6c /* Interrupt Mask Register */ /* PMC System Clock Enable Register */ /* PMC System Clock Disable Register */ /* PMC System Clock StatusRegister */ #define PMC_SCER_PCK (1UL << 0) /* PCK: Processor Clock Enable */ #define PMC_SCER_UDP (1UL << 1) /* UDP: USB Device Port Clock Enable */ #define PMC_SCER_MCKUDP (1UL << 2) /* MCKUDP: Master disable susp/res */ #define PMC_SCER_UHP (1UL << 4) /* UHP: USB Host Port Clock Enable */ #define PMC_SCER_PCK0 (1UL << 8) /* PCK0: Programmable Clock out en */ #define PMC_SCER_PCK1 (1UL << 9) /* PCK1: Programmable Clock out en */ #define PMC_SCER_PCK2 (1UL << 10) /* PCK2: Programmable Clock out en */ #define PMC_SCER_PCK3 (1UL << 11) /* PCK3: Programmable Clock out en */ #define PMC_SCER_UHP_SAM9 (1UL << 6) /* UHP: USB Host Port Clock Enable */ #define PMC_SCER_UDP_SAM9 (1UL << 7) /* UDP: USB Device Port Clock Enable */ /* PMC Peripheral Clock Enable Register */ /* PMC Peripheral Clock Disable Register */ /* PMC Peripheral Clock Status Register */ /* Each bit here is 1 << peripheral number to enable/disable/status */ /* PMC Clock Generator Main Oscillator Register */ #define CKGR_MOR_MOSCEN (1UL << 0) /* MOSCEN: Main Oscillator Enable */ #define CKGR_MOR_OSCBYPASS (1UL << 1) /* Oscillator Bypass */ #define CKGR_MOR_OSCOUNT(x) (x << 8) /* Main Oscillator Start-up Time */ /* PMC Clock Generator Main Clock Frequency Register */ #define CKGR_MCFR_MAINRDY (1UL << 16) /* Main Clock Ready */ #define CKGR_MCFR_MAINF_MASK 0xfffful /* Main Clock Frequency */ /* PMC Clock Generator Master Clock Register */ #define PMC_MCKR_PDIV (1 << 12) /* SAM9G20 Only */ #define PMC_MCKR_PLLADIV2 (1 << 12) /* SAM9G45 Only */ #define PMC_MCKR_CSS_MASK (3 << 0) #define PMC_MCKR_MDIV_MASK (3 << 8) #define PMC_MCKR_PRES_MASK (7 << 2) /* PMC Interrupt Enable Register */ /* PMC Interrupt Disable Register */ /* PMC Status Register */ /* PMC Interrupt Mask Register */ #define PMC_IER_MOSCS (1UL << 0) /* Main Oscillator Status */ #define PMC_IER_LOCKA (1UL << 1) /* PLL A Locked */ #define PMC_IER_LOCKB (1UL << 2) /* PLL B Locked */ #define PMC_IER_MCKRDY (1UL << 3) /* Master Clock Status */ #define PMC_IER_PCK0RDY (1UL << 8) /* Programmable Clock 0 Ready */ #define PMC_IER_PCK1RDY (1UL << 9) /* Programmable Clock 1 Ready */ #define PMC_IER_PCK2RDY (1UL << 10) /* Programmable Clock 2 Ready */ #define PMC_IER_PCK3RDY (1UL << 11) /* Programmable Clock 3 Ready */ /* * PLL input frequency spec sheet says it must be between 1MHz and 32MHz, * but it works down as low as 100kHz, a frequency necessary for some * output frequencies to work. */ #define PMC_PLL_MIN_IN_FREQ 100000 #define PMC_PLL_MAX_IN_FREQ 32000000 /* * PLL Max output frequency is 240MHz. The errata says 180MHz is the max * for some revisions of this part. Be more permissive and optimistic. */ #define PMC_PLL_MAX_OUT_FREQ 240000000 #define PMC_PLL_MULT_MIN 2 #define PMC_PLL_MULT_MAX 2048 #define PMC_PLL_SHIFT_TOL 5 /* Allow errors 1 part in 32 */ #define PMC_PLL_FAST_THRESH 155000000 #endif /* ARM_AT91_AT91_PMCREG_H */