| /* SPDX-License-Identifier: GPL-2.0+ */ |
| /* |
| * (C) Copyright 2010,2011 |
| * Vladimir Khusainov, Emcraft Systems, vlad@emcraft.com |
| * |
| * (C) Copyright 2015 |
| * Kamil Lulko, <kamil.lulko@gmail.com> |
| */ |
| |
| #ifndef ARMV7M_H |
| #define ARMV7M_H |
| |
| #if defined(__ASSEMBLY__) |
| .syntax unified |
| .thumb |
| #endif |
| |
| /* armv7m fixed base addresses */ |
| #define V7M_SCS_BASE 0xE000E000 |
| #define V7M_NVIC_BASE (V7M_SCS_BASE + 0x0100) |
| #define V7M_SCB_BASE (V7M_SCS_BASE + 0x0D00) |
| #define V7M_PROC_FTR_BASE (V7M_SCS_BASE + 0x0D78) |
| #define V7M_MPU_BASE (V7M_SCS_BASE + 0x0D90) |
| #define V7M_FPU_BASE (V7M_SCS_BASE + 0x0F30) |
| #define V7M_CACHE_MAINT_BASE (V7M_SCS_BASE + 0x0F50) |
| #define V7M_ACCESS_CNTL_BASE (V7M_SCS_BASE + 0x0F90) |
| |
| #define V7M_SCB_VTOR 0x08 |
| |
| #if !defined(__ASSEMBLY__) |
| struct v7m_scb { |
| uint32_t cpuid; /* CPUID Base Register */ |
| uint32_t icsr; /* Interrupt Control and State Register */ |
| uint32_t vtor; /* Vector Table Offset Register */ |
| uint32_t aircr; /* App Interrupt and Reset Control Register */ |
| uint32_t scr; /* offset 0x10: System Control Register */ |
| uint32_t ccr; /* offset 0x14: Config and Control Register */ |
| uint32_t shpr1; /* offset 0x18: System Handler Priority Reg 1 */ |
| uint32_t shpr2; /* offset 0x1c: System Handler Priority Reg 2 */ |
| uint32_t shpr3; /* offset 0x20: System Handler Priority Reg 3 */ |
| uint32_t shcrs; /* offset 0x24: System Handler Control State */ |
| uint32_t cfsr; /* offset 0x28: Configurable Fault Status Reg */ |
| uint32_t hfsr; /* offset 0x2C: HardFault Status Register */ |
| uint32_t res; /* offset 0x30: reserved */ |
| uint32_t mmar; /* offset 0x34: MemManage Fault Address Reg */ |
| uint32_t bfar; /* offset 0x38: BusFault Address Reg */ |
| uint32_t afsr; /* offset 0x3C: Auxiliary Fault Status Reg */ |
| }; |
| #define V7M_SCB ((struct v7m_scb *)V7M_SCB_BASE) |
| |
| #define V7M_AIRCR_VECTKEY 0x5fa |
| #define V7M_AIRCR_VECTKEY_SHIFT 16 |
| #define V7M_AIRCR_ENDIAN (1 << 15) |
| #define V7M_AIRCR_PRIGROUP_SHIFT 8 |
| #define V7M_AIRCR_PRIGROUP_MSK (0x7 << V7M_AIRCR_PRIGROUP_SHIFT) |
| #define V7M_AIRCR_SYSRESET (1 << 2) |
| |
| #define V7M_ICSR_VECTACT_MSK 0xFF |
| |
| #define V7M_CCR_DCACHE 16 |
| #define V7M_CCR_ICACHE 17 |
| |
| struct v7m_mpu { |
| uint32_t type; /* Type Register */ |
| uint32_t ctrl; /* Control Register */ |
| uint32_t rnr; /* Region Number Register */ |
| uint32_t rbar; /* Region Base Address Register */ |
| uint32_t rasr; /* Region Attribute and Size Register */ |
| }; |
| #define V7M_MPU ((struct v7m_mpu *)V7M_MPU_BASE) |
| |
| #endif /* !defined(__ASSEMBLY__) */ |
| #endif /* ARMV7M_H */ |
