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1 /* SPDX-License-Identifier: GPL-2.0+ */
2 /*
3  * ColdFire cache
4  *
5  * Copyright 2004-2012 Freescale Semiconductor, Inc.
6  * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
7  */
8 
9 #ifndef __CACHE_H
10 #define __CACHE_H
11 
12 #if defined(CONFIG_MCF520x) || defined(CONFIG_MCF523x) || \
13     defined(CONFIG_MCF52x2) || defined(CONFIG_MCF5227x)
14 #define CONFIG_CF_V2
15 #endif
16 
17 #if defined(CONFIG_MCF530x) || defined(CONFIG_MCF532x) || \
18     defined(CONFIG_MCF5301x)
19 #define CONFIG_CF_V3
20 #endif
21 
22 #if defined(CONFIG_MCF547x_8x) || defined(CONFIG_MCF5445x)
23 #define CONFIG_CF_V4
24 #elif defined(CONFIG_MCF5441x)
25 #define CONFIG_CF_V4E		/* Four Extra ACRn */
26 #endif
27 
28 /* ***** CACR ***** */
29 /* V2 Core */
30 #ifdef CONFIG_CF_V2
31 
32 #define CF_CACR_CENB		(1 << 31)
33 #define CF_CACR_CPD		(1 << 28)
34 #define CF_CACR_CFRZ		(1 << 27)
35 #define CF_CACR_CEIB		(1 << 10)
36 #define CF_CACR_DCM		(1 << 9)
37 #define CF_CACR_DBWE		(1 << 8)
38 
39 #if defined(CONFIG_MCF5249) || defined(CONFIG_MCF5253)
40 #define CF_CACR_DWP		(1 << 6)
41 #else
42 #define CF_CACR_CINV		(1 << 24)
43 #define CF_CACR_DISI		(1 << 23)
44 #define CF_CACR_DISD		(1 << 22)
45 #define CF_CACR_INVI		(1 << 21)
46 #define CF_CACR_INVD		(1 << 20)
47 #define CF_CACR_DWP		(1 << 5)
48 #define CF_CACR_EUSP		(1 << 4)
49 #endif				/* CONFIG_MCF5249 || CONFIG_MCF5253 */
50 
51 #endif				/* CONFIG_CF_V2 */
52 
53 /* V3 Core */
54 #ifdef CONFIG_CF_V3
55 
56 #define CF_CACR_EC		(1 << 31)
57 #define CF_CACR_ESB		(1 << 29)
58 #define CF_CACR_DPI		(1 << 28)
59 #define CF_CACR_HLCK		(1 << 27)
60 #define CF_CACR_CINVA		(1 << 24)
61 #define CF_CACR_DNFB		(1 << 10)
62 #define CF_CACR_DCM_UNMASK	0xFFFFFCFF
63 #define CF_CACR_DCM_WT		(0 << 8)
64 #define CF_CACR_DCM_CB		(1 << 8)
65 #define CF_CACR_DCM_P		(2 << 8)
66 #define CF_CACR_DCM_IP		(3 << 8)
67 #define CF_CACR_DW		(1 << 5)
68 #define CF_CACR_EUSP		(1 << 4)
69 
70 #endif				/* CONFIG_CF_V3 */
71 
72 /* V4 Core */
73 #if defined(CONFIG_CF_V4) || defined(CONFIG_CF_V4E)
74 
75 #define CF_CACR_DEC		(1 << 31)
76 #define CF_CACR_DW		(1 << 30)
77 #define CF_CACR_DESB		(1 << 29)
78 #define CF_CACR_DDPI		(1 << 28)
79 #define CF_CACR_DHLCK		(1 << 27)
80 #define CF_CACR_DDCM_UNMASK	(0xF9FFFFFF)
81 #define CF_CACR_DDCM_WT		(0 << 25)
82 #define CF_CACR_DDCM_CB		(1 << 25)
83 #define CF_CACR_DDCM_P		(2 << 25)
84 #define CF_CACR_DDCM_IP		(3 << 25)
85 #define CF_CACR_DCINVA		(1 << 24)
86 
87 #define CF_CACR_DDSP		(1 << 23)
88 #define CF_CACR_BEC		(1 << 19)
89 #define CF_CACR_BCINVA		(1 << 18)
90 #define CF_CACR_IEC		(1 << 15)
91 #define CF_CACR_DNFB		(1 << 13)
92 #define CF_CACR_IDPI		(1 << 12)
93 #define CF_CACR_IHLCK		(1 << 11)
94 #define CF_CACR_IDCM		(1 << 10)
95 #define CF_CACR_ICINVA		(1 << 8)
96 #define CF_CACR_IDSP		(1 << 7)
97 #define CF_CACR_EUSP		(1 << 5)
98 
99 #if defined(CONFIG_MCF5445x) || defined(CONFIG_MCF5441x)
100 #define CF_CACR_IVO		(1 << 20)
101 #define CF_CACR_SPA		(1 << 14)
102 #else
103 #define CF_CACR_DF		(1 << 4)
104 #endif
105 
106 #endif				/* CONFIG_CF_V4 */
107 
108 /* ***** ACR ***** */
109 #define CF_ACR_ADR_UNMASK	(0x00FFFFFF)
110 #define CF_ACR_ADR(x)		((x & 0xFF) << 24)
111 #define CF_ACR_ADRMSK_UNMASK	(0xFF00FFFF)
112 #define CF_ACR_ADRMSK(x)	((x & 0xFF) << 16)
113 #define CF_ACR_EN		(1 << 15)
114 #define CF_ACR_SM_UNMASK	(0xFFFF9FFF)
115 #define CF_ACR_SM_UM		(0 << 13)
116 #define CF_ACR_SM_SM		(1 << 13)
117 #define CF_ACR_SM_ALL		(3 << 13)
118 #define CF_ACR_WP		(1 << 2)
119 
120 /* V2 Core */
121 #ifdef CONFIG_CF_V2
122 #define CF_ACR_CM		(1 << 6)
123 #define CF_ACR_BWE		(1 << 5)
124 #else
125 /* V3 & V4 */
126 #define CF_ACR_CM_UNMASK	(0xFFFFFF9F)
127 #define CF_ACR_CM_WT		(0 << 5)
128 #define CF_ACR_CM_CB		(1 << 5)
129 #define CF_ACR_CM_P		(2 << 5)
130 #define CF_ACR_CM_IP		(3 << 5)
131 #endif				/* CONFIG_CF_V2 */
132 
133 /* V4 Core */
134 #if defined(CONFIG_CF_V4) || defined(CONFIG_CF_V4E)
135 #define CF_ACR_AMM		(1 << 10)
136 #define CF_ACR_SP		(1 << 3)
137 #endif				/* CONFIG_CF_V4 */
138 
139 
140 #ifndef CONFIG_SYS_CACHE_ICACR
141 #define CONFIG_SYS_CACHE_ICACR	0
142 #endif
143 
144 #ifndef CONFIG_SYS_CACHE_DCACR
145 #ifdef CONFIG_SYS_CACHE_ICACR
146 #define CONFIG_SYS_CACHE_DCACR	CONFIG_SYS_CACHE_ICACR
147 #else
148 #define CONFIG_SYS_CACHE_DCACR	0
149 #endif
150 #endif
151 
152 #ifndef CONFIG_SYS_CACHE_ACR0
153 #define CONFIG_SYS_CACHE_ACR0	0
154 #endif
155 
156 #ifndef CONFIG_SYS_CACHE_ACR1
157 #define CONFIG_SYS_CACHE_ACR1	0
158 #endif
159 
160 #ifndef CONFIG_SYS_CACHE_ACR2
161 #define CONFIG_SYS_CACHE_ACR2	0
162 #endif
163 
164 #ifndef CONFIG_SYS_CACHE_ACR3
165 #define CONFIG_SYS_CACHE_ACR3	0
166 #endif
167 
168 #ifndef CONFIG_SYS_CACHE_ACR4
169 #define CONFIG_SYS_CACHE_ACR4	0
170 #endif
171 
172 #ifndef CONFIG_SYS_CACHE_ACR5
173 #define CONFIG_SYS_CACHE_ACR5	0
174 #endif
175 
176 #ifndef CONFIG_SYS_CACHE_ACR6
177 #define CONFIG_SYS_CACHE_ACR6	0
178 #endif
179 
180 #ifndef CONFIG_SYS_CACHE_ACR7
181 #define CONFIG_SYS_CACHE_ACR7	0
182 #endif
183 
184 #define CF_ADDRMASK(x)		(((x > 0x10) ? ((x >> 4) - 1) : (x)) << 16)
185 
186 #ifndef __ASSEMBLY__		/* put C only stuff in this section */
187 
188 void icache_invalid(void);
189 void dcache_invalid(void);
190 
191 #endif
192 
193 /*
194  * m68k uses 16 byte L1 data cache line sizes.  Use this for DMA buffer
195  * alignment unless the board configuration has specified a new value.
196  */
197 #ifdef CONFIG_SYS_CACHELINE_SIZE
198 #define ARCH_DMA_MINALIGN	CONFIG_SYS_CACHELINE_SIZE
199 #else
200 #define ARCH_DMA_MINALIGN	16
201 #endif
202 
203 #endif				/* __CACHE_H */
204