diff options
Diffstat (limited to 'arch/arm/include/asm/armv7m.h')
| -rw-r--r-- | arch/arm/include/asm/armv7m.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/arch/arm/include/asm/armv7m.h b/arch/arm/include/asm/armv7m.h new file mode 100644 index 0000000..ad67b4f --- /dev/null +++ b/arch/arm/include/asm/armv7m.h @@ -0,0 +1,68 @@ +/* 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 + +/* 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 */ |