| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Common defines for v7m cpus |
| */ |
| #define V7M_SCS_ICTR IOMEM(0xe000e004) |
| #define V7M_SCS_ICTR_INTLINESNUM_MASK 0x0000000f |
| |
| #define BASEADDR_V7M_SCB IOMEM(0xe000ed00) |
| |
| #define V7M_SCB_CPUID 0x00 |
| |
| #define V7M_SCB_ICSR 0x04 |
| #define V7M_SCB_ICSR_PENDSVSET (1 << 28) |
| #define V7M_SCB_ICSR_PENDSVCLR (1 << 27) |
| #define V7M_SCB_ICSR_RETTOBASE (1 << 11) |
| |
| #define V7M_SCB_VTOR 0x08 |
| |
| #define V7M_SCB_AIRCR 0x0c |
| #define V7M_SCB_AIRCR_VECTKEY (0x05fa << 16) |
| #define V7M_SCB_AIRCR_SYSRESETREQ (1 << 2) |
| |
| #define V7M_SCB_SCR 0x10 |
| #define V7M_SCB_SCR_SLEEPDEEP (1 << 2) |
| |
| #define V7M_SCB_CCR 0x14 |
| #define V7M_SCB_CCR_STKALIGN (1 << 9) |
| #define V7M_SCB_CCR_DC (1 << 16) |
| #define V7M_SCB_CCR_IC (1 << 17) |
| #define V7M_SCB_CCR_BP (1 << 18) |
| |
| #define V7M_SCB_SHPR2 0x1c |
| #define V7M_SCB_SHPR3 0x20 |
| |
| #define V7M_SCB_SHCSR 0x24 |
| #define V7M_SCB_SHCSR_USGFAULTENA (1 << 18) |
| #define V7M_SCB_SHCSR_BUSFAULTENA (1 << 17) |
| #define V7M_SCB_SHCSR_MEMFAULTENA (1 << 16) |
| |
| #define V7M_xPSR_FRAMEPTRALIGN 0x00000200 |
| #define V7M_xPSR_EXCEPTIONNO 0x000001ff |
| |
| /* |
| * When branching to an address that has bits [31:28] == 0xf an exception return |
| * occurs. Bits [27:5] are reserved (SBOP). If the processor implements the FP |
| * extension Bit [4] defines if the exception frame has space allocated for FP |
| * state information, SBOP otherwise. Bit [3] defines the mode that is returned |
| * to (0 -> handler mode; 1 -> thread mode). Bit [2] defines which sp is used |
| * (0 -> msp; 1 -> psp). Bits [1:0] are fixed to 0b01. |
| */ |
| #define EXC_RET_STACK_MASK 0x00000004 |
| #define EXC_RET_THREADMODE_PROCESSSTACK 0xfffffffd |
| |
| /* Cache related definitions */ |
| |
| #define V7M_SCB_CLIDR 0x78 /* Cache Level ID register */ |
| #define V7M_SCB_CTR 0x7c /* Cache Type register */ |
| #define V7M_SCB_CCSIDR 0x80 /* Cache size ID register */ |
| #define V7M_SCB_CSSELR 0x84 /* Cache size selection register */ |
| |
| /* Memory-mapped MPU registers for M-class */ |
| #define MPU_TYPE 0x90 |
| #define MPU_CTRL 0x94 |
| #define MPU_CTRL_ENABLE 1 |
| #define MPU_CTRL_PRIVDEFENA (1 << 2) |
| |
| #define PMSAv7_RNR 0x98 |
| #define PMSAv7_RBAR 0x9c |
| #define PMSAv7_RASR 0xa0 |
| |
| #define PMSAv8_RNR 0x98 |
| #define PMSAv8_RBAR 0x9c |
| #define PMSAv8_RLAR 0xa0 |
| #define PMSAv8_RBAR_A(n) (PMSAv8_RBAR + 8*(n)) |
| #define PMSAv8_RLAR_A(n) (PMSAv8_RLAR + 8*(n)) |
| #define PMSAv8_MAIR0 0xc0 |
| #define PMSAv8_MAIR1 0xc4 |
| |
| /* Cache opeartions */ |
| #define V7M_SCB_ICIALLU 0x250 /* I-cache invalidate all to PoU */ |
| #define V7M_SCB_ICIMVAU 0x258 /* I-cache invalidate by MVA to PoU */ |
| #define V7M_SCB_DCIMVAC 0x25c /* D-cache invalidate by MVA to PoC */ |
| #define V7M_SCB_DCISW 0x260 /* D-cache invalidate by set-way */ |
| #define V7M_SCB_DCCMVAU 0x264 /* D-cache clean by MVA to PoU */ |
| #define V7M_SCB_DCCMVAC 0x268 /* D-cache clean by MVA to PoC */ |
| #define V7M_SCB_DCCSW 0x26c /* D-cache clean by set-way */ |
| #define V7M_SCB_DCCIMVAC 0x270 /* D-cache clean and invalidate by MVA to PoC */ |
| #define V7M_SCB_DCCISW 0x274 /* D-cache clean and invalidate by set-way */ |
| #define V7M_SCB_BPIALL 0x278 /* D-cache clean and invalidate by set-way */ |
| |
| #ifndef __ASSEMBLY__ |
| |
| enum reboot_mode; |
| |
| void armv7m_restart(enum reboot_mode mode, const char *cmd); |
| |
| #endif /* __ASSEMBLY__ */ |
