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/* 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_ICSR_VECTACTIVE 0x000001ff
#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 V7M_SCB_ICSR_VECTACTIVE
/*
* 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 (3 << 2)
/* 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__ */