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 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