/*
* arch/arm/include/asm/hardware/cache-l2x0.h
*
* Copyright (C) 2007 ARM Limited
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/

#ifndef __ASM_ARM_HARDWARE_L2X0_H
#define __ASM_ARM_HARDWARE_L2X0_H

#include <linux/errno.h>

#define L2X0_CACHE_ID 0x000
#define L2X0_CACHE_TYPE 0x004
#define L2X0_CTRL 0x100
#define L2X0_AUX_CTRL 0x104
#define L2X0_TAG_LATENCY_CTRL 0x108
#define L2X0_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 L2X0_ADDR_FILTER_START 0xC00
#define L2X0_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 L2X0_PREFETCH_CTRL 0xF60
#define L2X0_POWER_CTRL 0xF80
#define L2X0_DYNAMIC_CLK_GATING_EN (1 << 1)
#define L2X0_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_L310 (3 << 6)
#define L2X0_CACHE_ID_RTL_MASK 0x3f
#define L2X0_CACHE_ID_RTL_R0P0 0x0
#define L2X0_CACHE_ID_RTL_R1P0 0x2
#define L2X0_CACHE_ID_RTL_R2P0 0x4
#define L2X0_CACHE_ID_RTL_R3P0 0x5
#define L2X0_CACHE_ID_RTL_R3P1 0x6
#define L2X0_CACHE_ID_RTL_R3P2 0x8

#define L2X0_AUX_CTRL_MASK 0xc0000fff
#define L2X0_AUX_CTRL_DATA_RD_LATENCY_SHIFT 0
#define L2X0_AUX_CTRL_DATA_RD_LATENCY_MASK 0x7
#define L2X0_AUX_CTRL_DATA_WR_LATENCY_SHIFT 3
#define L2X0_AUX_CTRL_DATA_WR_LATENCY_MASK (0x7 << 3)
#define L2X0_AUX_CTRL_TAG_LATENCY_SHIFT 6
#define L2X0_AUX_CTRL_TAG_LATENCY_MASK (0x7 << 6)
#define L2X0_AUX_CTRL_DIRTY_LATENCY_SHIFT 9
#define L2X0_AUX_CTRL_DIRTY_LATENCY_MASK (0x7 << 9)
#define L2X0_AUX_CTRL_ASSOCIATIVITY_SHIFT 16
#define L2X0_AUX_CTRL_WAY_SIZE_SHIFT 17
#define L2X0_AUX_CTRL_WAY_SIZE_MASK (0x7 << 17)
#define L2X0_AUX_CTRL_SHARE_OVERRIDE_SHIFT 22
#define L2X0_AUX_CTRL_NS_LOCKDOWN_SHIFT 26
#define L2X0_AUX_CTRL_NS_INT_CTRL_SHIFT 27
#define L2X0_AUX_CTRL_DATA_PREFETCH_SHIFT 28
#define L2X0_AUX_CTRL_INSTR_PREFETCH_SHIFT 29
#define L2X0_AUX_CTRL_EARLY_BRESP_SHIFT 30

#define L2X0_LATENCY_CTRL_SETUP_SHIFT 0
#define L2X0_LATENCY_CTRL_RD_SHIFT 4
#define L2X0_LATENCY_CTRL_WR_SHIFT 8

#define L2X0_ADDR_FILTER_EN 1

#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

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;
};

extern struct l2x0_regs l2x0_saved_regs;

#endif /* __ASSEMBLY__ */

#endif