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/* SPDX-License-Identifier: GPL-2.0 */
// Copyright (C) 2005-2017 Andes Technology Corporation
#ifndef L2_CACHE_H
#define L2_CACHE_H
/* CCTL_CMD_OP */
#define L2_CA_CONF_OFF 0x0
#define L2_IF_CONF_OFF 0x4
#define L2CC_SETUP_OFF 0x8
#define L2CC_PROT_OFF 0xC
#define L2CC_CTRL_OFF 0x10
#define L2_INT_EN_OFF 0x20
#define L2_STA_OFF 0x24
#define RDERR_ADDR_OFF 0x28
#define WRERR_ADDR_OFF 0x2c
#define EVDPTERR_ADDR_OFF 0x30
#define IMPL3ERR_ADDR_OFF 0x34
#define L2_CNT0_CTRL_OFF 0x40
#define L2_EVNT_CNT0_OFF 0x44
#define L2_CNT1_CTRL_OFF 0x48
#define L2_EVNT_CNT1_OFF 0x4c
#define L2_CCTL_CMD_OFF 0x60
#define L2_CCTL_STATUS_OFF 0x64
#define L2_LINE_TAG_OFF 0x68
#define L2_LINE_DPT_OFF 0x70
#define CCTL_CMD_L2_IX_INVAL 0x0
#define CCTL_CMD_L2_PA_INVAL 0x1
#define CCTL_CMD_L2_IX_WB 0x2
#define CCTL_CMD_L2_PA_WB 0x3
#define CCTL_CMD_L2_PA_WBINVAL 0x5
#define CCTL_CMD_L2_SYNC 0xa
/* CCTL_CMD_TYPE */
#define CCTL_SINGLE_CMD 0
#define CCTL_BLOCK_CMD 0x10
#define CCTL_ALL_CMD 0x10
/******************************************************************************
* L2_CA_CONF (Cache architecture configuration)
*****************************************************************************/
#define L2_CA_CONF_offL2SET 0
#define L2_CA_CONF_offL2WAY 4
#define L2_CA_CONF_offL2CLSZ 8
#define L2_CA_CONF_offL2DW 11
#define L2_CA_CONF_offL2PT 14
#define L2_CA_CONF_offL2VER 16
#define L2_CA_CONF_mskL2SET (0xFUL << L2_CA_CONF_offL2SET)
#define L2_CA_CONF_mskL2WAY (0xFUL << L2_CA_CONF_offL2WAY)
#define L2_CA_CONF_mskL2CLSZ (0x7UL << L2_CA_CONF_offL2CLSZ)
#define L2_CA_CONF_mskL2DW (0x7UL << L2_CA_CONF_offL2DW)
#define L2_CA_CONF_mskL2PT (0x3UL << L2_CA_CONF_offL2PT)
#define L2_CA_CONF_mskL2VER (0xFFFFUL << L2_CA_CONF_offL2VER)
/******************************************************************************
* L2CC_SETUP (L2CC Setup register)
*****************************************************************************/
#define L2CC_SETUP_offPART 0
#define L2CC_SETUP_mskPART (0x3UL << L2CC_SETUP_offPART)
#define L2CC_SETUP_offDDLATC 4
#define L2CC_SETUP_mskDDLATC (0x3UL << L2CC_SETUP_offDDLATC)
#define L2CC_SETUP_offTDLATC 8
#define L2CC_SETUP_mskTDLATC (0x3UL << L2CC_SETUP_offTDLATC)
/******************************************************************************
* L2CC_PROT (L2CC Protect register)
*****************************************************************************/
#define L2CC_PROT_offMRWEN 31
#define L2CC_PROT_mskMRWEN (0x1UL << L2CC_PROT_offMRWEN)
/******************************************************************************
* L2_CCTL_STATUS_Mn (The L2CCTL command working status for Master n)
*****************************************************************************/
#define L2CC_CTRL_offEN 31
#define L2CC_CTRL_mskEN (0x1UL << L2CC_CTRL_offEN)
/******************************************************************************
* L2_CCTL_STATUS_Mn (The L2CCTL command working status for Master n)
*****************************************************************************/
#define L2_CCTL_STATUS_offCMD_COMP 31
#define L2_CCTL_STATUS_mskCMD_COMP (0x1 << L2_CCTL_STATUS_offCMD_COMP)
extern void __iomem *atl2c_base;
#include <linux/smp.h>
#include <asm/io.h>
#include <asm/bitfield.h>
#define L2C_R_REG(offset) readl(atl2c_base + offset)
#define L2C_W_REG(offset, value) writel(value, atl2c_base + offset)
#define L2_CMD_RDY() \
do{;}while((L2C_R_REG(L2_CCTL_STATUS_OFF) & L2_CCTL_STATUS_mskCMD_COMP) == 0)
static inline unsigned long L2_CACHE_SET(void)
{
return 64 << ((L2C_R_REG(L2_CA_CONF_OFF) & L2_CA_CONF_mskL2SET) >>
L2_CA_CONF_offL2SET);
}
static inline unsigned long L2_CACHE_WAY(void)
{
return 1 +
((L2C_R_REG(L2_CA_CONF_OFF) & L2_CA_CONF_mskL2WAY) >>
L2_CA_CONF_offL2WAY);
}
static inline unsigned long L2_CACHE_LINE_SIZE(void)
{
return 4 << ((L2C_R_REG(L2_CA_CONF_OFF) & L2_CA_CONF_mskL2CLSZ) >>
L2_CA_CONF_offL2CLSZ);
}
static inline unsigned long GET_L2CC_CTRL_CPU(unsigned long cpu)
{
if (cpu == smp_processor_id())
return L2C_R_REG(L2CC_CTRL_OFF);
return L2C_R_REG(L2CC_CTRL_OFF + (cpu << 8));
}
static inline void SET_L2CC_CTRL_CPU(unsigned long cpu, unsigned long val)
{
if (cpu == smp_processor_id())
L2C_W_REG(L2CC_CTRL_OFF, val);
else
L2C_W_REG(L2CC_CTRL_OFF + (cpu << 8), val);
}
static inline unsigned long GET_L2CC_STATUS_CPU(unsigned long cpu)
{
if (cpu == smp_processor_id())
return L2C_R_REG(L2_CCTL_STATUS_OFF);
return L2C_R_REG(L2_CCTL_STATUS_OFF + (cpu << 8));
}
#endif