summaryrefslogtreecommitdiffstats
path: root/arch/arm/include/asm/hardware/cache-l2x0.h
blob: c4c87bc1223195478a76547d0e756ddec961eb70 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
/*
 * arch/arm/include/asm/hardware/cache-l2x0.h
 *
 * Copyright (C) 2007 ARM Limited
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#ifndef __ASM_ARM_HARDWARE_L2X0_H
#define __ASM_ARM_HARDWARE_L2X0_H

#include <linux/errno.h>

#define L2X0_CACHE_ID			0x000
#define L2X0_CACHE_TYPE			0x004
#define L2X0_CTRL			0x100
#define L2X0_AUX_CTRL			0x104
#define L2X0_TAG_LATENCY_CTRL		0x108
#define L2X0_DATA_LATENCY_CTRL		0x10C
#define L2X0_EVENT_CNT_CTRL		0x200
#define L2X0_EVENT_CNT1_CFG		0x204
#define L2X0_EVENT_CNT0_CFG		0x208
#define L2X0_EVENT_CNT1_VAL		0x20C
#define L2X0_EVENT_CNT0_VAL		0x210
#define L2X0_INTR_MASK			0x214
#define L2X0_MASKED_INTR_STAT		0x218
#define L2X0_RAW_INTR_STAT		0x21C
#define L2X0_INTR_CLEAR			0x220
#define L2X0_CACHE_SYNC			0x730
#define L2X0_DUMMY_REG			0x740
#define L2X0_INV_LINE_PA		0x770
#define L2X0_INV_WAY			0x77C
#define L2X0_CLEAN_LINE_PA		0x7B0
#define L2X0_CLEAN_LINE_IDX		0x7B8
#define L2X0_CLEAN_WAY			0x7BC
#define L2X0_CLEAN_INV_LINE_PA		0x7F0
#define L2X0_CLEAN_INV_LINE_IDX		0x7F8
#define L2X0_CLEAN_INV_WAY		0x7FC
/*
 * The lockdown registers repeat 8 times for L310, the L210 has only one
 * D and one I lockdown register at 0x0900 and 0x0904.
 */
#define L2X0_LOCKDOWN_WAY_D_BASE	0x900
#define L2X0_LOCKDOWN_WAY_I_BASE	0x904
#define L2X0_LOCKDOWN_STRIDE		0x08
#define L2X0_ADDR_FILTER_START		0xC00
#define L2X0_ADDR_FILTER_END		0xC04
#define L2X0_TEST_OPERATION		0xF00
#define L2X0_LINE_DATA			0xF10
#define L2X0_LINE_TAG			0xF30
#define L2X0_DEBUG_CTRL			0xF40
#define L2X0_PREFETCH_CTRL		0xF60
#define L2X0_POWER_CTRL			0xF80
#define   L2X0_DYNAMIC_CLK_GATING_EN	(1 << 1)
#define   L2X0_STNDBY_MODE_EN		(1 << 0)

/* Registers shifts and masks */
#define L2X0_CACHE_ID_PART_MASK		(0xf << 6)
#define L2X0_CACHE_ID_PART_L210		(1 << 6)
#define L2X0_CACHE_ID_PART_L310		(3 << 6)
#define L2X0_CACHE_ID_RTL_MASK          0x3f
#define L2X0_CACHE_ID_RTL_R0P0          0x0
#define L2X0_CACHE_ID_RTL_R1P0          0x2
#define L2X0_CACHE_ID_RTL_R2P0          0x4
#define L2X0_CACHE_ID_RTL_R3P0          0x5
#define L2X0_CACHE_ID_RTL_R3P1          0x6
#define L2X0_CACHE_ID_RTL_R3P2          0x8

#define L2X0_AUX_CTRL_MASK			0xc0000fff
#define L2X0_AUX_CTRL_DATA_RD_LATENCY_SHIFT	0
#define L2X0_AUX_CTRL_DATA_RD_LATENCY_MASK	0x7
#define L2X0_AUX_CTRL_DATA_WR_LATENCY_SHIFT	3
#define L2X0_AUX_CTRL_DATA_WR_LATENCY_MASK	(0x7 << 3)
#define L2X0_AUX_CTRL_TAG_LATENCY_SHIFT		6
#define L2X0_AUX_CTRL_TAG_LATENCY_MASK		(0x7 << 6)
#define L2X0_AUX_CTRL_DIRTY_LATENCY_SHIFT	9
#define L2X0_AUX_CTRL_DIRTY_LATENCY_MASK	(0x7 << 9)
#define L2X0_AUX_CTRL_ASSOCIATIVITY_SHIFT	16
#define L2X0_AUX_CTRL_WAY_SIZE_SHIFT		17
#define L2X0_AUX_CTRL_WAY_SIZE_MASK		(0x7 << 17)
#define L2X0_AUX_CTRL_SHARE_OVERRIDE_SHIFT	22
#define L2X0_AUX_CTRL_NS_LOCKDOWN_SHIFT		26
#define L2X0_AUX_CTRL_NS_INT_CTRL_SHIFT		27
#define L2X0_AUX_CTRL_DATA_PREFETCH_SHIFT	28
#define L2X0_AUX_CTRL_INSTR_PREFETCH_SHIFT	29
#define L2X0_AUX_CTRL_EARLY_BRESP_SHIFT		30

#define L2X0_LATENCY_CTRL_SETUP_SHIFT	0
#define L2X0_LATENCY_CTRL_RD_SHIFT	4
#define L2X0_LATENCY_CTRL_WR_SHIFT	8

#define L2X0_ADDR_FILTER_EN		1

#ifndef __ASSEMBLY__
extern void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask);
#if defined(CONFIG_CACHE_L2X0) && defined(CONFIG_OF)
extern int l2x0_of_init(u32 aux_val, u32 aux_mask);
#else
static inline int l2x0_of_init(u32 aux_val, u32 aux_mask)
{
	return -ENODEV;
}
#endif

struct l2x0_regs {
	unsigned long phy_base;
	unsigned long aux_ctrl;
	/*
	 * Whether the following registers need to be saved/restored
	 * depends on platform
	 */
	unsigned long tag_latency;
	unsigned long data_latency;
	unsigned long filter_start;
	unsigned long filter_end;
	unsigned long prefetch_ctrl;
	unsigned long pwr_ctrl;
};

extern struct l2x0_regs l2x0_saved_regs;

#endif /* __ASSEMBLY__ */

#endif
OpenPOWER on IntegriCloud