cregit-Linux how code gets into the kernel

Release 4.11 arch/arm/include/asm/v7m.h

/*
 * 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 */

/* 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__ */

Overall Contributors

PersonTokensPropCommitsCommitProp
Catalin Marinas9444.34%133.33%
Jonathan Austin8439.62%133.33%
Uwe Kleine-König3416.04%133.33%
Total212100.00%3100.00%
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