xref: /openbmc/linux/arch/sh/include/cpu-sh4/cpu/cache.h (revision 6a0abce4)
1 /* SPDX-License-Identifier: GPL-2.0
2  *
3  * include/asm-sh/cpu-sh4/cache.h
4  *
5  * Copyright (C) 1999 Niibe Yutaka
6  */
7 #ifndef __ASM_CPU_SH4_CACHE_H
8 #define __ASM_CPU_SH4_CACHE_H
9 
10 #define L1_CACHE_SHIFT	5
11 
12 #define SH_CACHE_VALID		1
13 #define SH_CACHE_UPDATED	2
14 #define SH_CACHE_COMBINED	4
15 #define SH_CACHE_ASSOC		8
16 
17 #define SH_CCR		0xff00001c	/* Address of Cache Control Register */
18 #define CCR_CACHE_OCE	0x0001	/* Operand Cache Enable */
19 #define CCR_CACHE_WT	0x0002	/* Write-Through (for P0,U0,P3) (else writeback)*/
20 #define CCR_CACHE_CB	0x0004	/* Copy-Back (for P1) (else writethrough) */
21 #define CCR_CACHE_OCI	0x0008	/* OC Invalidate */
22 #define CCR_CACHE_ORA	0x0020	/* OC RAM Mode */
23 #define CCR_CACHE_OIX	0x0080	/* OC Index Enable */
24 #define CCR_CACHE_ICE	0x0100	/* Instruction Cache Enable */
25 #define CCR_CACHE_ICI	0x0800	/* IC Invalidate */
26 #define CCR_CACHE_IIX	0x8000	/* IC Index Enable */
27 #ifndef CONFIG_CPU_SH4A
28 #define CCR_CACHE_EMODE	0x80000000	/* EMODE Enable */
29 #endif
30 
31 /* Default CCR setup: 8k+16k-byte cache,P1-wb,enable */
32 #define CCR_CACHE_ENABLE	(CCR_CACHE_OCE|CCR_CACHE_ICE)
33 #define CCR_CACHE_INVALIDATE	(CCR_CACHE_OCI|CCR_CACHE_ICI)
34 
35 #define CACHE_IC_ADDRESS_ARRAY	0xf0000000
36 #define CACHE_OC_ADDRESS_ARRAY	0xf4000000
37 
38 #define RAMCR			0xFF000074
39 
40 #endif /* __ASM_CPU_SH4_CACHE_H */
41 
42