1/* 2 * Co-processor register definitions for PKUnity SoC and UniCore ISA 3 * 4 * Copyright (C) 2001-2012 GUAN Xue-tao 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 */ 10#ifndef __UNICORE_HWDEF_COPRO_H__ 11#define __UNICORE_HWDEF_COPRO_H__ 12 13/* 14 * Control Register bits (CP#0 CR1) 15 */ 16#define CR_M (1 << 0) /* MMU enable */ 17#define CR_A (1 << 1) /* Alignment abort enable */ 18#define CR_D (1 << 2) /* Dcache enable */ 19#define CR_I (1 << 3) /* Icache enable */ 20#define CR_B (1 << 4) /* Dcache write mechanism: write back */ 21#define CR_T (1 << 5) /* Burst enable */ 22#define CR_V (1 << 13) /* Vectors relocated to 0xffff0000 */ 23 24#ifndef __ASSEMBLY__ 25 26#define vectors_high() (cr_alignment & CR_V) 27 28extern unsigned long cr_no_alignment; /* defined in entry.S */ 29extern unsigned long cr_alignment; /* defined in entry.S */ 30 31static inline unsigned int get_cr(void) 32{ 33 unsigned int val; 34 asm("movc %0, p0.c1, #0" : "=r" (val) : : "cc"); 35 return val; 36} 37 38static inline void set_cr(unsigned int val) 39{ 40 asm volatile("movc p0.c1, %0, #0" : : "r" (val) : "cc"); 41 isb(); 42} 43 44extern void adjust_cr(unsigned long mask, unsigned long set); 45 46#endif /* __ASSEMBLY__ */ 47 48#endif /* __UNICORE_HWDEF_COPRO_H__ */ 49