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 28 extern unsigned long cr_no_alignment; /* defined in entry.S */ 29 extern unsigned long cr_alignment; /* defined in entry.S */ 30 get_cr(void)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 set_cr(unsigned int val)38static inline void set_cr(unsigned int val) 39 { 40 asm volatile("movc p0.c1, %0, #0" : : "r" (val) : "cc"); 41 isb(); 42 } 43 44 extern void adjust_cr(unsigned long mask, unsigned long set); 45 46 #endif /* __ASSEMBLY__ */ 47 48 #endif /* __UNICORE_HWDEF_COPRO_H__ */ 49