1 /*
2 * arch/arm/include/asm/hardware/cache-l2x0.h
3 *
4 * Copyright (C) 2007 ARM Limited
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 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20 #ifndef __ASM_ARM_HARDWARE_L2X0_H
21 #define __ASM_ARM_HARDWARE_L2X0_H
22
23 #include <linux/errno.h>
24
25 #define L2X0_CACHE_ID 0x000
26 #define L2X0_CACHE_TYPE 0x004
27 #define L2X0_CTRL 0x100
28 #define L2X0_AUX_CTRL 0x104
29 #define L310_TAG_LATENCY_CTRL 0x108
30 #define L310_DATA_LATENCY_CTRL 0x10C
31 #define L2X0_EVENT_CNT_CTRL 0x200
32 #define L2X0_EVENT_CNT1_CFG 0x204
33 #define L2X0_EVENT_CNT0_CFG 0x208
34 #define L2X0_EVENT_CNT1_VAL 0x20C
35 #define L2X0_EVENT_CNT0_VAL 0x210
36 #define L2X0_INTR_MASK 0x214
37 #define L2X0_MASKED_INTR_STAT 0x218
38 #define L2X0_RAW_INTR_STAT 0x21C
39 #define L2X0_INTR_CLEAR 0x220
40 #define L2X0_CACHE_SYNC 0x730
41 #define L2X0_DUMMY_REG 0x740
42 #define L2X0_INV_LINE_PA 0x770
43 #define L2X0_INV_WAY 0x77C
44 #define L2X0_CLEAN_LINE_PA 0x7B0
45 #define L2X0_CLEAN_LINE_IDX 0x7B8
46 #define L2X0_CLEAN_WAY 0x7BC
47 #define L2X0_CLEAN_INV_LINE_PA 0x7F0
48 #define L2X0_CLEAN_INV_LINE_IDX 0x7F8
49 #define L2X0_CLEAN_INV_WAY 0x7FC
50 /*
51 * The lockdown registers repeat 8 times for L310, the L210 has only one
52 * D and one I lockdown register at 0x0900 and 0x0904.
53 */
54 #define L2X0_LOCKDOWN_WAY_D_BASE 0x900
55 #define L2X0_LOCKDOWN_WAY_I_BASE 0x904
56 #define L2X0_LOCKDOWN_STRIDE 0x08
57 #define L310_ADDR_FILTER_START 0xC00
58 #define L310_ADDR_FILTER_END 0xC04
59 #define L2X0_TEST_OPERATION 0xF00
60 #define L2X0_LINE_DATA 0xF10
61 #define L2X0_LINE_TAG 0xF30
62 #define L2X0_DEBUG_CTRL 0xF40
63 #define L310_PREFETCH_CTRL 0xF60
64 #define L310_POWER_CTRL 0xF80
65 #define L310_DYNAMIC_CLK_GATING_EN (1 << 1)
66 #define L310_STNDBY_MODE_EN (1 << 0)
67
68 /* Registers shifts and masks */
69 #define L2X0_CACHE_ID_PART_MASK (0xf << 6)
70 #define L2X0_CACHE_ID_PART_L210 (1 << 6)
71 #define L2X0_CACHE_ID_PART_L220 (2 << 6)
72 #define L2X0_CACHE_ID_PART_L310 (3 << 6)
73 #define L2X0_CACHE_ID_RTL_MASK 0x3f
74 #define L210_CACHE_ID_RTL_R0P2_02 0x00
75 #define L210_CACHE_ID_RTL_R0P1 0x01
76 #define L210_CACHE_ID_RTL_R0P2_01 0x02
77 #define L210_CACHE_ID_RTL_R0P3 0x03
78 #define L210_CACHE_ID_RTL_R0P4 0x0b
79 #define L210_CACHE_ID_RTL_R0P5 0x0f
80 #define L220_CACHE_ID_RTL_R1P7_01REL0 0x06
81 #define L310_CACHE_ID_RTL_R0P0 0x00
82 #define L310_CACHE_ID_RTL_R1P0 0x02
83 #define L310_CACHE_ID_RTL_R2P0 0x04
84 #define L310_CACHE_ID_RTL_R3P0 0x05
85 #define L310_CACHE_ID_RTL_R3P1 0x06
86 #define L310_CACHE_ID_RTL_R3P1_50REL0 0x07
87 #define L310_CACHE_ID_RTL_R3P2 0x08
88 #define L310_CACHE_ID_RTL_R3P3 0x09
89
90 /* L2C auxiliary control register - bits common to L2C-210/220/310 */
91 #define L2C_AUX_CTRL_WAY_SIZE_SHIFT 17
92 #define L2C_AUX_CTRL_WAY_SIZE_MASK (7 << 17)
93 #define L2C_AUX_CTRL_WAY_SIZE(n) ((n) << 17)
94 #define L2C_AUX_CTRL_EVTMON_ENABLE BIT(20)
95 #define L2C_AUX_CTRL_PARITY_ENABLE BIT(21)
96 #define L2C_AUX_CTRL_SHARED_OVERRIDE BIT(22)
97 /* L2C-210/220 common bits */
98 #define L2X0_AUX_CTRL_DATA_RD_LATENCY_SHIFT 0
99 #define L2X0_AUX_CTRL_DATA_RD_LATENCY_MASK (7 << 0)
100 #define L2X0_AUX_CTRL_DATA_WR_LATENCY_SHIFT 3
101 #define L2X0_AUX_CTRL_DATA_WR_LATENCY_MASK (7 << 3)
102 #define L2X0_AUX_CTRL_TAG_LATENCY_SHIFT 6
103 #define L2X0_AUX_CTRL_TAG_LATENCY_MASK (7 << 6)
104 #define L2X0_AUX_CTRL_DIRTY_LATENCY_SHIFT 9
105 #define L2X0_AUX_CTRL_DIRTY_LATENCY_MASK (7 << 9)
106 #define L2X0_AUX_CTRL_ASSOC_SHIFT 13
107 #define L2X0_AUX_CTRL_ASSOC_MASK (15 << 13)
108 /* L2C-210 specific bits */
109 #define L210_AUX_CTRL_WRAP_DISABLE BIT(12)
110 #define L210_AUX_CTRL_WA_OVERRIDE BIT(23)
111 #define L210_AUX_CTRL_EXCLUSIVE_ABORT BIT(24)
112 /* L2C-220 specific bits */
113 #define L220_AUX_CTRL_EXCLUSIVE_CACHE BIT(12)
114 #define L220_AUX_CTRL_FWA_SHIFT 23
115 #define L220_AUX_CTRL_FWA_MASK (3 << 23)
116 #define L220_AUX_CTRL_NS_LOCKDOWN BIT(26)
117 #define L220_AUX_CTRL_NS_INT_CTRL BIT(27)
118 /* L2C-310 specific bits */
119 #define L310_AUX_CTRL_FULL_LINE_ZERO BIT(0) /* R2P0+ */
120 #define L310_AUX_CTRL_HIGHPRIO_SO_DEV BIT(10) /* R2P0+ */
121 #define L310_AUX_CTRL_STORE_LIMITATION BIT(11) /* R2P0+ */
122 #define L310_AUX_CTRL_EXCLUSIVE_CACHE BIT(12)
123 #define L310_AUX_CTRL_ASSOCIATIVITY_16 BIT(16)
124 #define L310_AUX_CTRL_CACHE_REPLACE_RR BIT(25) /* R2P0+ */
125 #define L310_AUX_CTRL_NS_LOCKDOWN BIT(26)
126 #define L310_AUX_CTRL_NS_INT_CTRL BIT(27)
127 #define L310_AUX_CTRL_DATA_PREFETCH BIT(28)
128 #define L310_AUX_CTRL_INSTR_PREFETCH BIT(29)
129 #define L310_AUX_CTRL_EARLY_BRESP BIT(30) /* R2P0+ */
130
131 #define L310_LATENCY_CTRL_SETUP(n) ((n) << 0)
132 #define L310_LATENCY_CTRL_RD(n) ((n) << 4)
133 #define L310_LATENCY_CTRL_WR(n) ((n) << 8)
134
135 #define L310_ADDR_FILTER_EN 1
136
137 #define L310_PREFETCH_CTRL_OFFSET_MASK 0x1f
138 #define L310_PREFETCH_CTRL_DBL_LINEFILL_INCR BIT(23)
139 #define L310_PREFETCH_CTRL_PREFETCH_DROP BIT(24)
140 #define L310_PREFETCH_CTRL_DBL_LINEFILL_WRAP BIT(27)
141 #define L310_PREFETCH_CTRL_DATA_PREFETCH BIT(28)
142 #define L310_PREFETCH_CTRL_INSTR_PREFETCH BIT(29)
143 #define L310_PREFETCH_CTRL_DBL_LINEFILL BIT(30)
144
145 #define L2X0_CTRL_EN 1
146
147 #define L2X0_WAY_SIZE_SHIFT 3
148
149 #ifndef __ASSEMBLY__
150 extern void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask);
151 #if defined(CONFIG_CACHE_L2X0) && defined(CONFIG_OF)
152 extern int l2x0_of_init(u32 aux_val, u32 aux_mask);
153 #else
l2x0_of_init(u32 aux_val,u32 aux_mask)154 static inline int l2x0_of_init(u32 aux_val, u32 aux_mask)
155 {
156 return -ENODEV;
157 }
158 #endif
159
160 struct l2x0_regs {
161 unsigned long phy_base;
162 unsigned long aux_ctrl;
163 /*
164 * Whether the following registers need to be saved/restored
165 * depends on platform
166 */
167 unsigned long tag_latency;
168 unsigned long data_latency;
169 unsigned long filter_start;
170 unsigned long filter_end;
171 unsigned long prefetch_ctrl;
172 unsigned long pwr_ctrl;
173 unsigned long ctrl;
174 unsigned long aux2_ctrl;
175 };
176
177 extern struct l2x0_regs l2x0_saved_regs;
178
179 #endif /* __ASSEMBLY__ */
180
181 #endif
182