b8db6b886a
Aurora Cache Controller was designed to be compatible with the ARM L2 Cache Controller. It comes with some difference or improvement such as: - no cache id part number available through hardware (need to get it by the DT). - always write through mode available. - two flavors of the controller outer cache and system cache (meaning maintenance operations on L1 are broadcasted to the L2 and L2 performs the same operation). - in outer cache mode, the cache maintenance operations are improved and can be done on a range inside a page and are not limited to a cache line. Tested-and-Reviewed-by: Lior Amsalem <alior@marvell.com> Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com> Signed-off-by: Yehuda Yitschak <yehuday@marvell.com> Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
140 lines
4.4 KiB
C
140 lines
4.4 KiB
C
/*
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* arch/arm/include/asm/hardware/cache-l2x0.h
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*
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* Copyright (C) 2007 ARM Limited
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __ASM_ARM_HARDWARE_L2X0_H
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#define __ASM_ARM_HARDWARE_L2X0_H
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#include <linux/errno.h>
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#define L2X0_CACHE_ID 0x000
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#define L2X0_CACHE_TYPE 0x004
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#define L2X0_CTRL 0x100
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#define L2X0_AUX_CTRL 0x104
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#define L2X0_TAG_LATENCY_CTRL 0x108
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#define L2X0_DATA_LATENCY_CTRL 0x10C
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#define L2X0_EVENT_CNT_CTRL 0x200
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#define L2X0_EVENT_CNT1_CFG 0x204
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#define L2X0_EVENT_CNT0_CFG 0x208
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#define L2X0_EVENT_CNT1_VAL 0x20C
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#define L2X0_EVENT_CNT0_VAL 0x210
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#define L2X0_INTR_MASK 0x214
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#define L2X0_MASKED_INTR_STAT 0x218
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#define L2X0_RAW_INTR_STAT 0x21C
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#define L2X0_INTR_CLEAR 0x220
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#define L2X0_CACHE_SYNC 0x730
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#define L2X0_DUMMY_REG 0x740
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#define L2X0_INV_LINE_PA 0x770
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#define L2X0_INV_WAY 0x77C
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#define L2X0_CLEAN_LINE_PA 0x7B0
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#define L2X0_CLEAN_LINE_IDX 0x7B8
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#define L2X0_CLEAN_WAY 0x7BC
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#define L2X0_CLEAN_INV_LINE_PA 0x7F0
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#define L2X0_CLEAN_INV_LINE_IDX 0x7F8
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#define L2X0_CLEAN_INV_WAY 0x7FC
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/*
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* The lockdown registers repeat 8 times for L310, the L210 has only one
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* D and one I lockdown register at 0x0900 and 0x0904.
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*/
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#define L2X0_LOCKDOWN_WAY_D_BASE 0x900
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#define L2X0_LOCKDOWN_WAY_I_BASE 0x904
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#define L2X0_LOCKDOWN_STRIDE 0x08
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#define L2X0_ADDR_FILTER_START 0xC00
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#define L2X0_ADDR_FILTER_END 0xC04
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#define L2X0_TEST_OPERATION 0xF00
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#define L2X0_LINE_DATA 0xF10
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#define L2X0_LINE_TAG 0xF30
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#define L2X0_DEBUG_CTRL 0xF40
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#define L2X0_PREFETCH_CTRL 0xF60
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#define L2X0_POWER_CTRL 0xF80
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#define L2X0_DYNAMIC_CLK_GATING_EN (1 << 1)
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#define L2X0_STNDBY_MODE_EN (1 << 0)
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/* Registers shifts and masks */
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#define L2X0_CACHE_ID_PART_MASK (0xf << 6)
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#define L2X0_CACHE_ID_PART_L210 (1 << 6)
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#define L2X0_CACHE_ID_PART_L310 (3 << 6)
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#define L2X0_CACHE_ID_RTL_MASK 0x3f
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#define L2X0_CACHE_ID_RTL_R0P0 0x0
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#define L2X0_CACHE_ID_RTL_R1P0 0x2
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#define L2X0_CACHE_ID_RTL_R2P0 0x4
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#define L2X0_CACHE_ID_RTL_R3P0 0x5
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#define L2X0_CACHE_ID_RTL_R3P1 0x6
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#define L2X0_CACHE_ID_RTL_R3P2 0x8
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#define L2X0_AUX_CTRL_MASK 0xc0000fff
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#define L2X0_AUX_CTRL_DATA_RD_LATENCY_SHIFT 0
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#define L2X0_AUX_CTRL_DATA_RD_LATENCY_MASK 0x7
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#define L2X0_AUX_CTRL_DATA_WR_LATENCY_SHIFT 3
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#define L2X0_AUX_CTRL_DATA_WR_LATENCY_MASK (0x7 << 3)
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#define L2X0_AUX_CTRL_TAG_LATENCY_SHIFT 6
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#define L2X0_AUX_CTRL_TAG_LATENCY_MASK (0x7 << 6)
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#define L2X0_AUX_CTRL_DIRTY_LATENCY_SHIFT 9
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#define L2X0_AUX_CTRL_DIRTY_LATENCY_MASK (0x7 << 9)
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#define L2X0_AUX_CTRL_ASSOCIATIVITY_SHIFT 16
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#define L2X0_AUX_CTRL_WAY_SIZE_SHIFT 17
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#define L2X0_AUX_CTRL_WAY_SIZE_MASK (0x7 << 17)
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#define L2X0_AUX_CTRL_SHARE_OVERRIDE_SHIFT 22
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#define L2X0_AUX_CTRL_NS_LOCKDOWN_SHIFT 26
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#define L2X0_AUX_CTRL_NS_INT_CTRL_SHIFT 27
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#define L2X0_AUX_CTRL_DATA_PREFETCH_SHIFT 28
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#define L2X0_AUX_CTRL_INSTR_PREFETCH_SHIFT 29
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#define L2X0_AUX_CTRL_EARLY_BRESP_SHIFT 30
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#define L2X0_LATENCY_CTRL_SETUP_SHIFT 0
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#define L2X0_LATENCY_CTRL_RD_SHIFT 4
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#define L2X0_LATENCY_CTRL_WR_SHIFT 8
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#define L2X0_ADDR_FILTER_EN 1
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#define L2X0_CTRL_EN 1
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#define L2X0_WAY_SIZE_SHIFT 3
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#ifndef __ASSEMBLY__
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extern void __init l2x0_init(void __iomem *base, u32 aux_val, u32 aux_mask);
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#if defined(CONFIG_CACHE_L2X0) && defined(CONFIG_OF)
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extern int l2x0_of_init(u32 aux_val, u32 aux_mask);
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#else
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static inline int l2x0_of_init(u32 aux_val, u32 aux_mask)
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{
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return -ENODEV;
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}
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#endif
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struct l2x0_regs {
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unsigned long phy_base;
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unsigned long aux_ctrl;
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/*
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* Whether the following registers need to be saved/restored
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* depends on platform
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*/
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unsigned long tag_latency;
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unsigned long data_latency;
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unsigned long filter_start;
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unsigned long filter_end;
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unsigned long prefetch_ctrl;
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unsigned long pwr_ctrl;
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unsigned long ctrl;
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};
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extern struct l2x0_regs l2x0_saved_regs;
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#endif /* __ASSEMBLY__ */
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#endif
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