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/*
* Co-processor register definitions for PKUnity SoC and UniCore ISA
*
* Copyright (C) 2001-2012 GUAN Xue-tao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __UNICORE_HWDEF_COPRO_H__
#define __UNICORE_HWDEF_COPRO_H__
/*
* Control Register bits (CP#0 CR1)
*/
#define CR_M (1 << 0) /* MMU enable */
#define CR_A (1 << 1) /* Alignment abort enable */
#define CR_D (1 << 2) /* Dcache enable */
#define CR_I (1 << 3) /* Icache enable */
#define CR_B (1 << 4) /* Dcache write mechanism: write back */
#define CR_T (1 << 5) /* Burst enable */
#define CR_V (1 << 13) /* Vectors relocated to 0xffff0000 */
#ifndef __ASSEMBLY__
#define vectors_high() (cr_alignment & CR_V)
extern unsigned long cr_no_alignment; /* defined in entry.S */
extern unsigned long cr_alignment; /* defined in entry.S */
static inline unsigned int get_cr(void)
{
unsigned int val;
asm("movc %0, p0.c1, #0" : "=r" (val) : : "cc");
return val;
}
static inline void set_cr(unsigned int val)
{
asm volatile("movc p0.c1, %0, #0" : : "r" (val) : "cc");
isb();
}
extern void adjust_cr(unsigned long mask, unsigned long set);
#endif /* __ASSEMBLY__ */
#endif /* __UNICORE_HWDEF_COPRO_H__ */