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