/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/include/asm/hardware/cache-l2x0.h
*
* Copyright (C) 2007 ARM Limited
*/
#ifndef __ASM_ARM_HARDWARE_L2X0_H
#define __ASM_ARM_HARDWARE_L2X0_H
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/types.h>
#define L2X0_CACHE_ID 0x000
#define L2X0_CACHE_TYPE 0x004
#define L2X0_CTRL 0x100
#define L2X0_AUX_CTRL 0x104
#define L310_TAG_LATENCY_CTRL 0x108
#define L310_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 L310_ADDR_FILTER_START 0xC00
#define L310_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 L310_PREFETCH_CTRL 0xF60
#define L310_POWER_CTRL 0xF80
#define L310_DYNAMIC_CLK_GATING_EN (1 << 1)
#define L310_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_L220 (2 << 6)
#define L2X0_CACHE_ID_PART_L310 (3 << 6)
#define L2X0_CACHE_ID_RTL_MASK 0x3f
#define L210_CACHE_ID_RTL_R0P2_02 0x00
#define L210_CACHE_ID_RTL_R0P1 0x01
#define L210_CACHE_ID_RTL_R0P2_01 0x02
#define L210_CACHE_ID_RTL_R0P3 0x03
#define L210_CACHE_ID_RTL_R0P4 0x0b
#define L210_CACHE_ID_RTL_R0P5 0x0f
#define L220_CACHE_ID_RTL_R1P7_01REL0 0x06
#define L310_CACHE_ID_RTL_R0P0 0x00
#define L310_CACHE_ID_RTL_R1P0 0x02
#define L310_CACHE_ID_RTL_R2P0 0x04
#define L310_CACHE_ID_RTL_R3P0 0x05
#define L310_CACHE_ID_RTL_R3P1 0x06
#define L310_CACHE_ID_RTL_R3P1_50REL0 0x07
#define L310_CACHE_ID_RTL_R3P2 0x08
#define L310_CACHE_ID_RTL_R3P3 0x09
#define L2X0_EVENT_CNT_CTRL_ENABLE BIT(0)
#define L2X0_EVENT_CNT_CFG_SRC_SHIFT 2
#define L2X0_EVENT_CNT_CFG_SRC_MASK 0xf
#define L2X0_EVENT_CNT_CFG_SRC_DISABLED 0
#define L2X0_EVENT_CNT_CFG_INT_DISABLED 0
#define L2X0_EVENT_CNT_CFG_INT_INCR 1
#define L2X0_EVENT_CNT_CFG_INT_OVERFLOW 2
/* L2C auxiliary control register - bits common to L2C-210/220/310 */
#define L2C_AUX_CTRL_WAY_SIZE_SHIFT 17
#define L2C_AUX_CTRL_WAY_SIZE_MASK (7 << 17)
#define L2C_AUX_CTRL_WAY_SIZE(n) ((n) << 17)
#define L2C_AUX_CTRL_EVTMON_ENABLE BIT(20)
#define L2C_AUX_CTRL_PARITY_ENABLE BIT(21)
#define L2C_AUX_CTRL_SHARED_OVERRIDE BIT(22)
/* L2C-210/220 common bits */
#define L2X0_AUX_CTRL_DATA_RD_LATENCY_SHIFT 0
#define L2X0_AUX_CTRL_DATA_RD_LATENCY_MASK (7 << 0)
#define L2X0_AUX_CTRL_DATA_WR_LATENCY_SHIFT 3
#define L2X0_AUX_CTRL_DATA_WR_LATENCY_MASK (7 << 3)
#define L2X0_AUX_CTRL_TAG_LATENCY_SHIFT 6
#define L2X0_AUX_CTRL_TAG_LATENCY_MASK (7 << 6)
#define L2X0_AUX_CTRL_DIRTY_LATENCY_SHIFT 9
#define L2X0_AUX_CTRL_DIRTY_LATENCY_MASK (7 << 9)
#define L2X0_AUX_CTRL_ASSOC_SHIFT 13
#define L2X0_AUX_CTRL_ASSOC_MASK (15 << 13)
/* L2C-210 specific bits */
#define L210_AUX_CTRL_WRAP_DISABLE BIT(12)
#define L210_AUX_CTRL_WA_OVERRIDE BIT(23)
#define L210_AUX_CTRL_EXCLUSIVE_ABORT BIT(24)
/* L2C-220 specific bits */
#define L220_AUX_CTRL_EXCLUSIVE_CACHE BIT(12)
#define L220_AUX_CTRL_FWA_SHIFT 23
#define L220_AUX_CTRL_FWA_MASK (3 << 23)
#define L220_AUX_CTRL_NS_LOCKDOWN BIT(26)
#define L220_AUX_CTRL_NS_INT_CTRL BIT(27)
/* L2C-310 specific bits */
#define L310_AUX_CTRL_FULL_LINE_ZERO BIT(0) /* R2P0+ */
#define L310_AUX_CTRL_HIGHPRIO_SO_DEV BIT(10) /* R2P0+ */
#define L310_AUX_CTRL_STORE_LIMITATION BIT(11) /* R2P0+ */
#define L310_AUX_CTRL_EXCLUSIVE_CACHE BIT(12)
#define L310_AUX_CTRL_ASSOCIATIVITY_16 BIT(16)
#define L310_AUX_CTRL_FWA_SHIFT 23
#define L310_AUX_CTRL_FWA_MASK (3 << 23)
#define L310_AUX_CTRL_CACHE_REPLACE_RR BIT(25) /* R2P0+ */
#define L310_AUX_CTRL_NS_LOCKDOWN BIT(26)
#define L310_AUX_CTRL_NS_INT_CTRL BIT(27)
#define L310_AUX_CTRL_DATA_PREFETCH BIT(28)
#define L310_AUX_CTRL_INSTR_PREFETCH BIT(29)
#define L310_AUX_CTRL_EARLY_BRESP BIT(30) /* R2P0+ */
#define L310_LATENCY_CTRL_SETUP(n) ((n) << 0)
#define L310_LATENCY_CTRL_RD(n) ((n) << 4)
#define L310_LATENCY_CTRL_WR(n) ((n) << 8)
#define L310_ADDR_FILTER_EN 1
#define L310_PREFETCH_CTRL_OFFSET_MASK 0x1f
#define L310_PREFETCH_CTRL_DBL_LINEFILL_INCR BIT(23)
#define L310_PREFETCH_CTRL_PREFETCH_DROP BIT(24)
#define L310_PREFETCH_CTRL_DBL_LINEFILL_WRAP BIT(27)
#define L310_PREFETCH_CTRL_DATA_PREFETCH BIT(28)
#define L310_PREFETCH_CTRL_INSTR_PREFETCH BIT(29)
#define L310_PREFETCH_CTRL_DBL_LINEFILL BIT(30)
#define L2X0_CTRL_EN 1
#define L2X0_WAY_SIZE_SHIFT 3
#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
#ifdef CONFIG_CACHE_L2X0_PMU
void l2x0_pmu_register(void __iomem *base, u32 part);
void l2x0_pmu_suspend(void);
void l2x0_pmu_resume(void);
#else
static inline void l2x0_pmu_register(void __iomem *base, u32 part) {}
static inline void l2x0_pmu_suspend(void) {}
static inline void l2x0_pmu_resume(void) {}
#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;
unsigned long ctrl;
unsigned long aux2_ctrl;
};
extern struct l2x0_regs l2x0_saved_regs;
#endif /* __ASSEMBLY__ */
#endif