/**************************************************************************** * arch/arm/include/armv7-r/cp15.h * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ /* References: * "ARM Architecture Reference Manual, ARMv7-A and ARMv7-R edition", * Copyright 1996-1998, 2000, 2004-2012 ARM. * All rights reserved. ARM DDI 0406C.c (ID051414) */ #ifndef __ARCH_ARM_SRC_ARMV7_R_CP15_H #define __ARCH_ARM_SRC_ARMV7_R_CP15_H /**************************************************************************** * Included Files ****************************************************************************/ #include /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* System control register descriptions. * * CP15 registers are accessed with MRC and MCR instructions as follows: * * MRC p15, , , , , ; Read CP15 Register * MCR p15, , , , , ; Write CP15 Register * * Where * * is the Opcode_1 value for the register * is a general purpose register * is the register number within CP15 * is the operational register * is the Opcode_2 value for the register. * * Reference: Cortex-A5™ MPCore, Technical Reference Manual, Paragraph 4.2. */ #ifdef __ASSEMBLY__ # define _CP15(op1,rd,crn,crm,op2) p15, op1, rd, crn, crm, op2 # define _CP15_64(op1,lo,hi,op2) p15, op1, lo, hi, op2 #else # define _CP15(op1,rd,crn,crm,op2) "p15, " #op1 ", %0, " #crn ", " #crm ", " #op2 # define _CP15_64(op1,lo,hi,op2) "p15, " #op1 ", %Q0, %R0, " #op2 #endif #define CP15_MIDR(r) _CP15(0, r, c0, c0, 0) /* Main ID Register */ #define CP15_CTR(r) _CP15(0, r, c0, c0, 1) /* Cache Type Register */ #define CP15_TCMTR(r) _CP15(0, r, c0, c0, 2) /* TCM Type Register */ #define CP15_MPUIR(r) _CP15(0, r, c0, c0, 4) /* MPU Type Register */ #define CP15_MPIDR(r) _CP15(0, r, c0, c0, 5) /* Multiprocessor Affinity Register */ #define CP15_REVIDR(r) _CP15(0, r, c0, c0, 6) /* Revision ID register (Cortex-A9) */ #define CP15_MID_PFR0(r) _CP15(0, r, c0, c1, 0) /* Processor Feature Register 0 */ #define CP15_MID_PFR1(r) _CP15(0, r, c0, c1, 1) /* Processor Feature Register 1 */ #define CP15_MID_DFR0(r) _CP15(0, r, c0, c1, 2) /* Debug Feature Register 0 */ #define CP15_MID_AFR0(r) _CP15(0, r, c0, c1, 3) /* Auxiliary Feature Register 0 (Cortex-A9) */ #define CP15_MID_MMFR0(r) _CP15(0, r, c0, c1, 4) /* Memory Model Features Register 0 */ #define CP15_MID_MMFR1(r) _CP15(0, r, c0, c1, 5) /* Memory Model Features Register 1 */ #define CP15_MID_MMFR2(r) _CP15(0, r, c0, c1, 6) /* Memory Model Features Register 2 */ #define CP15_MID_MMFR3(r) _CP15(0, r, c0, c1, 7) /* Memory Model Features Register 3 */ #define CP15_ID_ISAR0(r) _CP15(0, r, c0, c2, 0) /* Instruction Set Attributes Register 0 */ #define CP15_ID_ISAR1(r) _CP15(0, r, c0, c2, 1) /* Instruction Set Attributes Register 1 */ #define CP15_ID_ISAR2(r) _CP15(0, r, c0, c2, 2) /* Instruction Set Attributes Register 2 */ #define CP15_ID_ISAR3(r) _CP15(0, r, c0, c2, 3) /* Instruction Set Attributes Register 3 */ #define CP15_ID_ISAR4(r) _CP15(0, r, c0, c2, 4) /* Instruction Set Attributes Register 4 */ #define CP15_ID_ISAR5(r) _CP15(0, r, c0, c2, 5) /* Instruction Set Attributes Register 5 (Cortex-A5) */ #define CP15_CCSIDR(r) _CP15(1, r, c0, c0, 0) /* Cache Size Identification Register */ #define CP15_CLIDR(r) _CP15(1, r, c0, c0, 1) /* Cache Level ID Register */ #define CP15_AIDR(r) _CP15(1, r, c0, c0, 7) /* Auxiliary ID Register */ #define CP15_CSSELR(r) _CP15(2, r, c0, c0, 0) /* Cache Size Selection Register */ #define CP15_SCTLR(r) _CP15(0, r, c1, c0, 0) /* System Control Register */ #define CP15_ACTLR(r) _CP15(0, r, c1, c0, 1) /* Auxiliary Control Register */ #define CP15_CPACR(r) _CP15(0, r, c1, c0, 2) /* Coprocessor Access Control Register */ #define CP15_DFSR(r) _CP15(0, r, c5, c0, 0) /* Data Fault Status Register */ #define CP15_IFSR(r) _CP15(0, r, c5, c0, 1) /* Instruction Fault Status Register */ #define CP15_ADFSR(r) _CP15(0, r, c5, c1, 0) /* Auxiliary Data Fault Status Register */ #define CP15_AIFSR(r) _CP15(0, r, c5, c1, 1) /* Auxiliary Instruction Fault Status Register */ #define CP15_DFAR(r) _CP15(0, r, c6, c0, 0) /* Data Fault Address Register */ #define CP15_IFAR(r) _CP15(0, r, c6, c0, 2) /* Instruction Fault Address Register */ #define CP15_DRBAR(r) _CP15(0, r, c6, c1, 0) /* Data Region Base Address Register */ #define CP15_DRSR(r) _CP15(0, r, c6, c1, 2) /* Data Region Size and Enable Register */ #define CP15_DRACR(r) _CP15(0, r, c6, c1, 4) /* Data Region Access Control Register */ #ifndef CONFIG_ARM_HAVE_MPU_UNIFIED # define CP15_IRBAR(r) _CP15(0, r, c6, c1, 1) /* Instruction Region Base Address Register */ # define CP15_IRSR(r) _CP15(0, r, c6, c1, 3) /* Instruction Region Size and Enable Register */ # define CP15_IRACR(r) _CP15(0, r, c6, c1, 5) /* Instruction Region Access Control Register */ #endif #define CP15_RGNR(r) _CP15(0, r, c6, c2, 0) /* MPU Region Number Register */ #define CP15_ICIALLUIS(r) _CP15(0, r, c7, c1, 0) /* Cache Operations Registers */ #define CP15_BPIALLIS(r) _CP15(0, r, c7, c1, 6) #define CP15_ICIALLU(r) _CP15(0, r, c7, c5, 0) /* Cache Operations Registers */ #define CP15_ICIMVAU(r) _CP15(0, r, c7, c5, 1) #define CP15_CP15ISB(r) _CP15(0, r, c7, c5, 4) /* CP15 Instruction Synchronization Barrier operation */ #define CP15_BPIALL(r) _CP15(0, r, c7, c5, 6) /* Cache Operations Registers */ #define CP15_BPIMVA(r) _CP15(0, r, c7, c5, 7) /* Cortex-A5 */ #define CP15_DCIMVAC(r) _CP15(0, r, c7, c6, 1) #define CP15_DCISW(r) _CP15(0, r, c7, c6, 2) #define CP15_DCCMVAC(r) _CP15(0, r, c7, c10, 1) /* Data Cache Clean by MVA to PoC */ #define CP15_DCCSW(r) _CP15(0, r, c7, c10, 2) /* Data Cache Clean by Set/Way */ #define CP15_CP15DSB(r) _CP15(0, r, c7, c10, 4) /* CP15 Data Synchronization Barrier operation */ #define CP15_CP15DMB(r) _CP15(0, r, c7, c10, 5) /* CP15 Instruction Synchronization Barrier operation */ #define CP15_DCCMVAU(r) _CP15(0, r, c7, c11, 1) /* Cache Operations Registers */ #define CP15_DCCIMVAC(r) _CP15(0, r, c7, c14, 1) #define CP15_DCCISW(r) _CP15(0, r, c7, c14, 2) #define CP15_PMCR(r) _CP15(0, r, c9, c12, 0) /* Performance Monitor Control Register */ #define CP15_PMCNTENSET(r) _CP15(0, r, c9, c12, 1) /* Count Enable Set Register */ #define CP15_PMCNTENCLR(r) _CP15(0, r, c9, c12, 2) /* Count Enable Clear Register */ #define CP15_PMOVSR(r) _CP15(0, r, c9, c12, 3) /* Overflow Flag Status Register */ #define CP15_PMSWINC(r) _CP15(0, r, c9, c12, 4) /* Software Increment Register */ #define CP15_PMSELR(r) _CP15(0, r, c9, c12, 5) /* Event Counter Selection Register */ #define CP15_PMCEID0(r) _CP15(0, r, c9, c12, 6) /* Common Event Identification Registers (Cortex-A5) */ #define CP15_PMCEID1(r) _CP15(0, r, c9, c12, 7) #define CP15_PMCCNTR(r) _CP15(0, r, c9, c13, 0) /* Cycle Count Register */ #define CP15_PMXEVTYPER(r) _CP15(0, r, c9, c13, 1) /* Event Type Select Register */ #define CP15_PMXEVCNTR(r) _CP15(0, r, c9, c13, 2) /* Event Count Registers (Cortex-A5) */ #define CP15_PMUSERENR(r) _CP15(0, r, c9, c14, 0) /* User Enable Register */ #define CP15_PMINTENSET(r) _CP15(0, r, c9, c14, 1) /* Interrupt Enable Set Register */ #define CP15_PMINTENCLR(r) _CP15(0, r, c9, c14, 2) /* Interrupt Enable Clear Register */ #define CP15_VBAR(r) _CP15(0, r, c12, c0, 0) /* Vector Base Address Register */ #define CP15_MVBAR(r) _CP15(0, r, c12, c0, 1) /* Monitor Vector Base Address Register */ #define CP15_CONTEXTIDR(r) _CP15(0, r, c13, c0, 1) /* Context ID Register */ #define CP15_TPIDRURW(r) _CP15(0, r, c13, c0, 2) /* Software Thread ID Registers */ #define CP15_TPIDRURO(r) _CP15(0, r, c13, c0, 3) #define CP15_TPIDRPRW(r) _CP15(0, r, c13, c0, 4) #define CP15_CNTFRQ(r) _CP15(0, r, c14, c0, 0) /* Counter Frequency register */ #define CP15_CNTKCTL(r) _CP15(0, r, c14, c1, 0) /* Timer PL1 Control register */ #define CP15_CNTP_TVAL(r) _CP15(0, r, c14, c2, 0) /* PL1 Physical TimerValue register */ #define CP15_CNTP_CTL(r) _CP15(0, r, c14, c2, 1) /* PL1 Physical Timer Control register */ #define CP15_CNTV_TVAL(r) _CP15(0, r, c14, c3, 0) /* Virtual TimerValue register */ #define CP15_CNTV_CTL(r) _CP15(0, r, c14, c3, 1) /* Virtual Timer Control register */ #define CP15_CNTPCT(lo,hi) _CP15_64(0, lo, hi, c14) /* Physical Count register */ #define CP15_DCIALLU(r) _CP15(0, r, c15, c5, 0) /* Invalidate data cache */ #define CP15_SET(reg, value) \ do \ { \ __asm__ __volatile__ \ ( \ "mcr " CP15_ ## reg(0) "\n" \ :: "r"(value): "memory" \ ); \ } \ while(0) \ #define CP15_SET2(reg, op, value) \ do \ { \ __asm__ __volatile__ \ ( \ "mcr " CP15_ ## reg(0, op) "\n" \ :: "r"(value): "memory" \ ); \ } \ while(0) \ #define CP15_GET(reg) \ ({ \ uint32_t value; \ __asm__ __volatile__ \ ( \ "mrc " CP15_ ## reg(0) "\n" \ : "=r"(value) :: "memory" \ ); \ value; \ }) \ #define CP15_SET64(reg, value) \ do \ { \ __asm__ __volatile__ \ ( \ "mcrr " CP15_ ## reg(0,0) "\n" \ :: "r"(value): "memory" \ ); \ } \ while(0) \ #define CP15_GET64(reg) \ ({ \ uint64_t value; \ __asm__ __volatile__ \ ( \ "mrrc " CP15_ ## reg(0,0) "\n" \ : "=r"(value) :: "memory" \ ); \ value; \ }) \ #endif /* __ARCH_ARM_SRC_ARMV7_R_CP15_H */