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 L2X0_TAG_LATENCY_CTRL 0x108 30 #define L2X0_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 L2X0_ADDR_FILTER_START 0xC00 58 #define L2X0_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 L2X0_PREFETCH_CTRL 0xF60 64 #define L2X0_POWER_CTRL 0xF80 65 #define L2X0_DYNAMIC_CLK_GATING_EN (1 << 1) 66 #define L2X0_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_L310 (3 << 6) 72 #define L2X0_CACHE_ID_RTL_MASK 0x3f 73 #define L2X0_CACHE_ID_RTL_R0P0 0x0 74 #define L2X0_CACHE_ID_RTL_R1P0 0x2 75 #define L2X0_CACHE_ID_RTL_R2P0 0x4 76 #define L2X0_CACHE_ID_RTL_R3P0 0x5 77 #define L2X0_CACHE_ID_RTL_R3P1 0x6 78 #define L2X0_CACHE_ID_RTL_R3P2 0x8 79 80 #define L2X0_AUX_CTRL_MASK 0xc0000fff 81 #define L2X0_AUX_CTRL_DATA_RD_LATENCY_SHIFT 0 82 #define L2X0_AUX_CTRL_DATA_RD_LATENCY_MASK 0x7 83 #define L2X0_AUX_CTRL_DATA_WR_LATENCY_SHIFT 3 84 #define L2X0_AUX_CTRL_DATA_WR_LATENCY_MASK (0x7 << 3) 85 #define L2X0_AUX_CTRL_TAG_LATENCY_SHIFT 6 86 #define L2X0_AUX_CTRL_TAG_LATENCY_MASK (0x7 << 6) 87 #define L2X0_AUX_CTRL_DIRTY_LATENCY_SHIFT 9 88 #define L2X0_AUX_CTRL_DIRTY_LATENCY_MASK (0x7 << 9) 89 #define L2X0_AUX_CTRL_ASSOCIATIVITY_SHIFT 16 90 #define L2X0_AUX_CTRL_WAY_SIZE_SHIFT 17 91 #define L2X0_AUX_CTRL_WAY_SIZE_MASK (0x7 << 17) 92 #define L2X0_AUX_CTRL_SHARE_OVERRIDE_SHIFT 22 93 #define L2X0_AUX_CTRL_NS_LOCKDOWN_SHIFT 26 94 #define L2X0_AUX_CTRL_NS_INT_CTRL_SHIFT 27 95 #define L2X0_AUX_CTRL_DATA_PREFETCH_SHIFT 28 96 #define L2X0_AUX_CTRL_INSTR_PREFETCH_SHIFT 29 97 #define L2X0_AUX_CTRL_EARLY_BRESP_SHIFT 30 98 99 #define L2X0_LATENCY_CTRL_SETUP_SHIFT 0 100 #define L2X0_LATENCY_CTRL_RD_SHIFT 4 101 #define L2X0_LATENCY_CTRL_WR_SHIFT 8 102 103 #define L2X0_ADDR_FILTER_EN 1 104 105 #ifndef __ASSEMBLY__ 106 extern void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask); 107 #if defined(CONFIG_CACHE_L2X0) && defined(CONFIG_OF) 108 extern int l2x0_of_init(u32 aux_val, u32 aux_mask); 109 #else 110 static inline int l2x0_of_init(u32 aux_val, u32 aux_mask) 111 { 112 return -ENODEV; 113 } 114 #endif 115 116 struct l2x0_regs { 117 unsigned long phy_base; 118 unsigned long aux_ctrl; 119 /* 120 * Whether the following registers need to be saved/restored 121 * depends on platform 122 */ 123 unsigned long tag_latency; 124 unsigned long data_latency; 125 unsigned long filter_start; 126 unsigned long filter_end; 127 unsigned long prefetch_ctrl; 128 unsigned long pwr_ctrl; 129 }; 130 131 extern struct l2x0_regs l2x0_saved_regs; 132 133 #endif /* __ASSEMBLY__ */ 134 135 #endif 136