xref: /linux/arch/sh/include/cpu-sh3/cpu/cache.h (revision 597473720f4dc69749542bfcfed4a927a43d935e)
1 /* SPDX-License-Identifier: GPL-2.0
2  *
3  * include/asm-sh/cpu-sh3/cache.h
4  *
5  * Copyright (C) 1999 Niibe Yutaka
6  */
7 #ifndef __ASM_CPU_SH3_CACHE_H
8 #define __ASM_CPU_SH3_CACHE_H
9 
10 #define L1_CACHE_SHIFT	4
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		0xffffffec	/* Address of Cache Control Register */
18 
19 #define CCR_CACHE_CE	0x01	/* Cache Enable */
20 #define CCR_CACHE_WT	0x02	/* Write-Through (for P0,U0,P3) (else writeback) */
21 #define CCR_CACHE_CB	0x04	/* Write-Back (for P1) (else writethrough) */
22 #define CCR_CACHE_CF	0x08	/* Cache Flush */
23 #define CCR_CACHE_ORA	0x20	/* RAM mode */
24 
25 #define CACHE_OC_ADDRESS_ARRAY	0xf0000000
26 #define CACHE_PHYSADDR_MASK	0x1ffffc00
27 
28 #define CCR_CACHE_ENABLE	CCR_CACHE_CE
29 #define CCR_CACHE_INVALIDATE	CCR_CACHE_CF
30 
31 #if defined(CONFIG_CPU_SUBTYPE_SH7705) || \
32     defined(CONFIG_CPU_SUBTYPE_SH7710) || \
33     defined(CONFIG_CPU_SUBTYPE_SH7720) || \
34     defined(CONFIG_CPU_SUBTYPE_SH7721)
35 #define CCR3_REG	0xa40000b4
36 #define CCR_CACHE_16KB  0x00010000
37 #define CCR_CACHE_32KB	0x00020000
38 #endif
39 
40 #endif /* __ASM_CPU_SH3_CACHE_H */
41