1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * arch/arm/include/asm/hardware/cache-l2x0.h 4 * 5 * Copyright (C) 2007 ARM Limited 6 */ 7 8 #ifndef __ASM_ARM_HARDWARE_L2X0_H 9 #define __ASM_ARM_HARDWARE_L2X0_H 10 11 #include <linux/errno.h> 12 #include <linux/init.h> 13 #include <linux/types.h> 14 15 #define L2X0_CACHE_ID 0x000 16 #define L2X0_CACHE_TYPE 0x004 17 #define L2X0_CTRL 0x100 18 #define L2X0_AUX_CTRL 0x104 19 #define L310_TAG_LATENCY_CTRL 0x108 20 #define L310_DATA_LATENCY_CTRL 0x10C 21 #define L2X0_EVENT_CNT_CTRL 0x200 22 #define L2X0_EVENT_CNT1_CFG 0x204 23 #define L2X0_EVENT_CNT0_CFG 0x208 24 #define L2X0_EVENT_CNT1_VAL 0x20C 25 #define L2X0_EVENT_CNT0_VAL 0x210 26 #define L2X0_INTR_MASK 0x214 27 #define L2X0_MASKED_INTR_STAT 0x218 28 #define L2X0_RAW_INTR_STAT 0x21C 29 #define L2X0_INTR_CLEAR 0x220 30 #define L2X0_CACHE_SYNC 0x730 31 #define L2X0_DUMMY_REG 0x740 32 #define L2X0_INV_LINE_PA 0x770 33 #define L2X0_INV_WAY 0x77C 34 #define L2X0_CLEAN_LINE_PA 0x7B0 35 #define L2X0_CLEAN_LINE_IDX 0x7B8 36 #define L2X0_CLEAN_WAY 0x7BC 37 #define L2X0_CLEAN_INV_LINE_PA 0x7F0 38 #define L2X0_CLEAN_INV_LINE_IDX 0x7F8 39 #define L2X0_CLEAN_INV_WAY 0x7FC 40 /* 41 * The lockdown registers repeat 8 times for L310, the L210 has only one 42 * D and one I lockdown register at 0x0900 and 0x0904. 43 */ 44 #define L2X0_LOCKDOWN_WAY_D_BASE 0x900 45 #define L2X0_LOCKDOWN_WAY_I_BASE 0x904 46 #define L2X0_LOCKDOWN_STRIDE 0x08 47 #define L310_ADDR_FILTER_START 0xC00 48 #define L310_ADDR_FILTER_END 0xC04 49 #define L2X0_TEST_OPERATION 0xF00 50 #define L2X0_LINE_DATA 0xF10 51 #define L2X0_LINE_TAG 0xF30 52 #define L2X0_DEBUG_CTRL 0xF40 53 #define L310_PREFETCH_CTRL 0xF60 54 #define L310_POWER_CTRL 0xF80 55 #define L310_DYNAMIC_CLK_GATING_EN (1 << 1) 56 #define L310_STNDBY_MODE_EN (1 << 0) 57 58 /* Registers shifts and masks */ 59 #define L2X0_CACHE_ID_PART_MASK (0xf << 6) 60 #define L2X0_CACHE_ID_PART_L210 (1 << 6) 61 #define L2X0_CACHE_ID_PART_L220 (2 << 6) 62 #define L2X0_CACHE_ID_PART_L310 (3 << 6) 63 #define L2X0_CACHE_ID_RTL_MASK 0x3f 64 #define L210_CACHE_ID_RTL_R0P2_02 0x00 65 #define L210_CACHE_ID_RTL_R0P1 0x01 66 #define L210_CACHE_ID_RTL_R0P2_01 0x02 67 #define L210_CACHE_ID_RTL_R0P3 0x03 68 #define L210_CACHE_ID_RTL_R0P4 0x0b 69 #define L210_CACHE_ID_RTL_R0P5 0x0f 70 #define L220_CACHE_ID_RTL_R1P7_01REL0 0x06 71 #define L310_CACHE_ID_RTL_R0P0 0x00 72 #define L310_CACHE_ID_RTL_R1P0 0x02 73 #define L310_CACHE_ID_RTL_R2P0 0x04 74 #define L310_CACHE_ID_RTL_R3P0 0x05 75 #define L310_CACHE_ID_RTL_R3P1 0x06 76 #define L310_CACHE_ID_RTL_R3P1_50REL0 0x07 77 #define L310_CACHE_ID_RTL_R3P2 0x08 78 #define L310_CACHE_ID_RTL_R3P3 0x09 79 80 #define L2X0_EVENT_CNT_CTRL_ENABLE BIT(0) 81 82 #define L2X0_EVENT_CNT_CFG_SRC_SHIFT 2 83 #define L2X0_EVENT_CNT_CFG_SRC_MASK 0xf 84 #define L2X0_EVENT_CNT_CFG_SRC_DISABLED 0 85 #define L2X0_EVENT_CNT_CFG_INT_DISABLED 0 86 #define L2X0_EVENT_CNT_CFG_INT_INCR 1 87 #define L2X0_EVENT_CNT_CFG_INT_OVERFLOW 2 88 89 /* L2C auxiliary control register - bits common to L2C-210/220/310 */ 90 #define L2C_AUX_CTRL_WAY_SIZE_SHIFT 17 91 #define L2C_AUX_CTRL_WAY_SIZE_MASK (7 << 17) 92 #define L2C_AUX_CTRL_WAY_SIZE(n) ((n) << 17) 93 #define L2C_AUX_CTRL_EVTMON_ENABLE BIT(20) 94 #define L2C_AUX_CTRL_PARITY_ENABLE BIT(21) 95 #define L2C_AUX_CTRL_SHARED_OVERRIDE BIT(22) 96 /* L2C-210/220 common bits */ 97 #define L2X0_AUX_CTRL_DATA_RD_LATENCY_SHIFT 0 98 #define L2X0_AUX_CTRL_DATA_RD_LATENCY_MASK (7 << 0) 99 #define L2X0_AUX_CTRL_DATA_WR_LATENCY_SHIFT 3 100 #define L2X0_AUX_CTRL_DATA_WR_LATENCY_MASK (7 << 3) 101 #define L2X0_AUX_CTRL_TAG_LATENCY_SHIFT 6 102 #define L2X0_AUX_CTRL_TAG_LATENCY_MASK (7 << 6) 103 #define L2X0_AUX_CTRL_DIRTY_LATENCY_SHIFT 9 104 #define L2X0_AUX_CTRL_DIRTY_LATENCY_MASK (7 << 9) 105 #define L2X0_AUX_CTRL_ASSOC_SHIFT 13 106 #define L2X0_AUX_CTRL_ASSOC_MASK (15 << 13) 107 /* L2C-210 specific bits */ 108 #define L210_AUX_CTRL_WRAP_DISABLE BIT(12) 109 #define L210_AUX_CTRL_WA_OVERRIDE BIT(23) 110 #define L210_AUX_CTRL_EXCLUSIVE_ABORT BIT(24) 111 /* L2C-220 specific bits */ 112 #define L220_AUX_CTRL_EXCLUSIVE_CACHE BIT(12) 113 #define L220_AUX_CTRL_FWA_SHIFT 23 114 #define L220_AUX_CTRL_FWA_MASK (3 << 23) 115 #define L220_AUX_CTRL_NS_LOCKDOWN BIT(26) 116 #define L220_AUX_CTRL_NS_INT_CTRL BIT(27) 117 /* L2C-310 specific bits */ 118 #define L310_AUX_CTRL_FULL_LINE_ZERO BIT(0) /* R2P0+ */ 119 #define L310_AUX_CTRL_HIGHPRIO_SO_DEV BIT(10) /* R2P0+ */ 120 #define L310_AUX_CTRL_STORE_LIMITATION BIT(11) /* R2P0+ */ 121 #define L310_AUX_CTRL_EXCLUSIVE_CACHE BIT(12) 122 #define L310_AUX_CTRL_ASSOCIATIVITY_16 BIT(16) 123 #define L310_AUX_CTRL_FWA_SHIFT 23 124 #define L310_AUX_CTRL_FWA_MASK (3 << 23) 125 #define L310_AUX_CTRL_CACHE_REPLACE_RR BIT(25) /* R2P0+ */ 126 #define L310_AUX_CTRL_NS_LOCKDOWN BIT(26) 127 #define L310_AUX_CTRL_NS_INT_CTRL BIT(27) 128 #define L310_AUX_CTRL_DATA_PREFETCH BIT(28) 129 #define L310_AUX_CTRL_INSTR_PREFETCH BIT(29) 130 #define L310_AUX_CTRL_EARLY_BRESP BIT(30) /* R2P0+ */ 131 132 #define L310_LATENCY_CTRL_SETUP(n) ((n) << 0) 133 #define L310_LATENCY_CTRL_RD(n) ((n) << 4) 134 #define L310_LATENCY_CTRL_WR(n) ((n) << 8) 135 136 #define L310_ADDR_FILTER_EN 1 137 138 #define L310_PREFETCH_CTRL_OFFSET_MASK 0x1f 139 #define L310_PREFETCH_CTRL_DBL_LINEFILL_INCR BIT(23) 140 #define L310_PREFETCH_CTRL_PREFETCH_DROP BIT(24) 141 #define L310_PREFETCH_CTRL_DBL_LINEFILL_WRAP BIT(27) 142 #define L310_PREFETCH_CTRL_DATA_PREFETCH BIT(28) 143 #define L310_PREFETCH_CTRL_INSTR_PREFETCH BIT(29) 144 #define L310_PREFETCH_CTRL_DBL_LINEFILL BIT(30) 145 146 #define L2X0_CTRL_EN 1 147 148 #define L2X0_WAY_SIZE_SHIFT 3 149 150 #ifndef __ASSEMBLY__ 151 extern void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask); 152 #if defined(CONFIG_CACHE_L2X0) && defined(CONFIG_OF) 153 extern int l2x0_of_init(u32 aux_val, u32 aux_mask); 154 #else 155 static inline int l2x0_of_init(u32 aux_val, u32 aux_mask) 156 { 157 return -ENODEV; 158 } 159 #endif 160 161 #ifdef CONFIG_CACHE_L2X0_PMU 162 void l2x0_pmu_register(void __iomem *base, u32 part); 163 void l2x0_pmu_suspend(void); 164 void l2x0_pmu_resume(void); 165 #else 166 static inline void l2x0_pmu_register(void __iomem *base, u32 part) {} 167 static inline void l2x0_pmu_suspend(void) {} 168 static inline void l2x0_pmu_resume(void) {} 169 #endif 170 171 struct l2x0_regs { 172 unsigned long phy_base; 173 unsigned long aux_ctrl; 174 /* 175 * Whether the following registers need to be saved/restored 176 * depends on platform 177 */ 178 unsigned long tag_latency; 179 unsigned long data_latency; 180 unsigned long filter_start; 181 unsigned long filter_end; 182 unsigned long prefetch_ctrl; 183 unsigned long pwr_ctrl; 184 unsigned long ctrl; 185 unsigned long aux2_ctrl; 186 }; 187 188 extern struct l2x0_regs l2x0_saved_regs; 189 190 #endif /* __ASSEMBLY__ */ 191 192 #endif 193