| Alexey Brodkin | 544c5f5 | 2014-02-04 12:56:13 +0400 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. All rights reserved. |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0+ |
| 5 | */ |
| 6 | |
| 7 | #ifndef _ASM_ARC_ARCREGS_H |
| 8 | #define _ASM_ARC_ARCREGS_H |
| 9 | |
| 10 | /* |
| 11 | * ARC architecture has additional address space - auxiliary registers. |
| 12 | * These registers are mostly used for configuration purposes. |
| 13 | * These registers are not memory mapped and special commands are used for |
| 14 | * access: "lr"/"sr". |
| 15 | */ |
| 16 | |
| 17 | #define ARC_AUX_IDENTITY 0x04 |
| 18 | #define ARC_AUX_STATUS32 0x0a |
| 19 | |
| 20 | /* Instruction cache related auxiliary registers */ |
| 21 | #define ARC_AUX_IC_IVIC 0x10 |
| 22 | #define ARC_AUX_IC_CTRL 0x11 |
| 23 | #define ARC_AUX_IC_IVIL 0x19 |
| 24 | #if (CONFIG_ARC_MMU_VER > 2) |
| 25 | #define ARC_AUX_IC_PTAG 0x1E |
| 26 | #endif |
| 27 | |
| 28 | /* Timer related auxiliary registers */ |
| 29 | #define ARC_AUX_TIMER0_CNT 0x21 /* Timer 0 count */ |
| 30 | #define ARC_AUX_TIMER0_CTRL 0x22 /* Timer 0 control */ |
| 31 | #define ARC_AUX_TIMER0_LIMIT 0x23 /* Timer 0 limit */ |
| 32 | |
| 33 | #define ARC_AUX_INTR_VEC_BASE 0x25 |
| 34 | |
| 35 | /* Data cache related auxiliary registers */ |
| 36 | #define ARC_AUX_DC_IVDC 0x47 |
| 37 | #define ARC_AUX_DC_CTRL 0x48 |
| 38 | |
| 39 | #define ARC_AUX_DC_IVDL 0x4A |
| 40 | #define ARC_AUX_DC_FLSH 0x4B |
| 41 | #define ARC_AUX_DC_FLDL 0x4C |
| 42 | #if (CONFIG_ARC_MMU_VER > 2) |
| 43 | #define ARC_AUX_DC_PTAG 0x5C |
| 44 | #endif |
| 45 | |
| 46 | #ifndef __ASSEMBLY__ |
| 47 | /* Accessors for auxiliary registers */ |
| 48 | #define read_aux_reg(reg) __builtin_arc_lr(reg) |
| 49 | |
| 50 | /* gcc builtin sr needs reg param to be long immediate */ |
| 51 | #define write_aux_reg(reg_immed, val) \ |
| 52 | __builtin_arc_sr((unsigned int)val, reg_immed) |
| 53 | #endif /* __ASSEMBLY__ */ |
| 54 | |
| 55 | #endif /* _ASM_ARC_ARCREGS_H */ |