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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* arch/arm/include/asm/hardware/pci_v3.h
*
* Internal header file PCI V3 chip
*
* Copyright (C) ARM Limited
* Copyright (C) 2000-2001 Deep Blue Solutions Ltd.
*/
#ifndef ASM_ARM_HARDWARE_PCI_V3_H
#define ASM_ARM_HARDWARE_PCI_V3_H
/* -------------------------------------------------------------------------------
* V3 Local Bus to PCI Bridge definitions
* -------------------------------------------------------------------------------
* Registers (these are taken from page 129 of the EPC User's Manual Rev 1.04
* All V3 register names are prefaced by V3_ to avoid clashing with any other
* PCI definitions. Their names match the user's manual.
*
* I'm assuming that I20 is disabled.
*
*/
#define V3_PCI_VENDOR 0x00000000
#define V3_PCI_DEVICE 0x00000002
#define V3_PCI_CMD 0x00000004
#define V3_PCI_STAT 0x00000006
#define V3_PCI_CC_REV 0x00000008
#define V3_PCI_HDR_CFG 0x0000000C
#define V3_PCI_IO_BASE 0x00000010
#define V3_PCI_BASE0 0x00000014
#define V3_PCI_BASE1 0x00000018
#define V3_PCI_SUB_VENDOR 0x0000002C
#define V3_PCI_SUB_ID 0x0000002E
#define V3_PCI_ROM 0x00000030
#define V3_PCI_BPARAM 0x0000003C
#define V3_PCI_MAP0 0x00000040
#define V3_PCI_MAP1 0x00000044
#define V3_PCI_INT_STAT 0x00000048
#define V3_PCI_INT_CFG 0x0000004C
#define V3_LB_BASE0 0x00000054
#define V3_LB_BASE1 0x00000058
#define V3_LB_MAP0 0x0000005E
#define V3_LB_MAP1 0x00000062
#define V3_LB_BASE2 0x00000064
#define V3_LB_MAP2 0x00000066
#define V3_LB_SIZE 0x00000068
#define V3_LB_IO_BASE 0x0000006E
#define V3_FIFO_CFG 0x00000070
#define V3_FIFO_PRIORITY 0x00000072
#define V3_FIFO_STAT 0x00000074
#define V3_LB_ISTAT 0x00000076
#define V3_LB_IMASK 0x00000077
#define V3_SYSTEM 0x00000078
#define V3_LB_CFG 0x0000007A
#define V3_PCI_CFG 0x0000007C
#define V3_DMA_PCI_ADR0 0x00000080
#define V3_DMA_PCI_ADR1 0x00000090
#define V3_DMA_LOCAL_ADR0 0x00000084
#define V3_DMA_LOCAL_ADR1 0x00000094
#define V3_DMA_LENGTH0 0x00000088
#define V3_DMA_LENGTH1 0x00000098
#define V3_DMA_CSR0 0x0000008B
#define V3_DMA_CSR1 0x0000009B
#define V3_DMA_CTLB_ADR0 0x0000008C
#define V3_DMA_CTLB_ADR1 0x0000009C
#define V3_DMA_DELAY 0x000000E0
#define V3_MAIL_DATA 0x000000C0
#define V3_PCI_MAIL_IEWR 0x000000D0
#define V3_PCI_MAIL_IERD 0x000000D2
#define V3_LB_MAIL_IEWR 0x000000D4
#define V3_LB_MAIL_IERD 0x000000D6
#define V3_MAIL_WR_STAT 0x000000D8
#define V3_MAIL_RD_STAT 0x000000DA
#define V3_QBA_MAP 0x000000DC
/* PCI COMMAND REGISTER bits
*/
#define V3_COMMAND_M_FBB_EN (1 << 9)
#define V3_COMMAND_M_SERR_EN (1 << 8)
#define V3_COMMAND_M_PAR_EN (1 << 6)
#define V3_COMMAND_M_MASTER_EN (1 << 2)
#define V3_COMMAND_M_MEM_EN (1 << 1)
#define V3_COMMAND_M_IO_EN (1 << 0)
/* SYSTEM REGISTER bits
*/
#define V3_SYSTEM_M_RST_OUT (1 << 15)
#define V3_SYSTEM_M_LOCK (1 << 14)
/* PCI_CFG bits
*/
#define V3_PCI_CFG_M_I2O_EN (1 << 15)
#define V3_PCI_CFG_M_IO_REG_DIS (1 << 14)
#define V3_PCI_CFG_M_IO_DIS (1 << 13)
#define V3_PCI_CFG_M_EN3V (1 << 12)
#define V3_PCI_CFG_M_RETRY_EN (1 << 10)
#define V3_PCI_CFG_M_AD_LOW1 (1 << 9)
#define V3_PCI_CFG_M_AD_LOW0 (1 << 8)
/* PCI_BASE register bits (PCI -> Local Bus)
*/
#define V3_PCI_BASE_M_ADR_BASE 0xFFF00000
#define V3_PCI_BASE_M_ADR_BASEL 0x000FFF00
#define V3_PCI_BASE_M_PREFETCH (1 << 3)
#define V3_PCI_BASE_M_TYPE (3 << 1)
#define V3_PCI_BASE_M_IO (1 << 0)
/* PCI MAP register bits (PCI -> Local bus)
*/
#define V3_PCI_MAP_M_MAP_ADR 0xFFF00000
#define V3_PCI_MAP_M_RD_POST_INH (1 << 15)
#define V3_PCI_MAP_M_ROM_SIZE (3 << 10)
#define V3_PCI_MAP_M_SWAP (3 << 8)
#define V3_PCI_MAP_M_ADR_SIZE 0x000000F0
#define V3_PCI_MAP_M_REG_EN (1 << 1)
#define V3_PCI_MAP_M_ENABLE (1 << 0)
#define V3_PCI_MAP_M_ADR_SIZE_1MB (0 << 4)
#define V3_PCI_MAP_M_ADR_SIZE_2MB (1 << 4)
#define V3_PCI_MAP_M_ADR_SIZE_4MB (2 << 4)
#define V3_PCI_MAP_M_ADR_SIZE_8MB (3 << 4)
#define V3_PCI_MAP_M_ADR_SIZE_16MB (4 << 4)
#define V3_PCI_MAP_M_ADR_SIZE_32MB (5 << 4)
#define V3_PCI_MAP_M_ADR_SIZE_64MB (6 << 4)
#define V3_PCI_MAP_M_ADR_SIZE_128MB (7 << 4)
#define V3_PCI_MAP_M_ADR_SIZE_256MB (8 << 4)
#define V3_PCI_MAP_M_ADR_SIZE_512MB (9 << 4)
#define V3_PCI_MAP_M_ADR_SIZE_1GB (10 << 4)
#define V3_PCI_MAP_M_ADR_SIZE_2GB (11 << 4)
/*
* LB_BASE0,1 register bits (Local bus -> PCI)
*/
#define V3_LB_BASE_ADR_BASE 0xfff00000
#define V3_LB_BASE_SWAP (3 << 8)
#define V3_LB_BASE_ADR_SIZE (15 << 4)
#define V3_LB_BASE_PREFETCH (1 << 3)
#define V3_LB_BASE_ENABLE (1 << 0)
#define V3_LB_BASE_ADR_SIZE_1MB (0 << 4)
#define V3_LB_BASE_ADR_SIZE_2MB (1 << 4)
#define V3_LB_BASE_ADR_SIZE_4MB (2 << 4)
#define V3_LB_BASE_ADR_SIZE_8MB (3 << 4)
#define V3_LB_BASE_ADR_SIZE_16MB (4 << 4)
#define V3_LB_BASE_ADR_SIZE_32MB (5 << 4)
#define V3_LB_BASE_ADR_SIZE_64MB (6 << 4)
#define V3_LB_BASE_ADR_SIZE_128MB (7 << 4)
#define V3_LB_BASE_ADR_SIZE_256MB (8 << 4)
#define V3_LB_BASE_ADR_SIZE_512MB (9 << 4)
#define V3_LB_BASE_ADR_SIZE_1GB (10 << 4)
#define V3_LB_BASE_ADR_SIZE_2GB (11 << 4)
#define v3_addr_to_lb_base(a) ((a) & V3_LB_BASE_ADR_BASE)
/*
* LB_MAP0,1 register bits (Local bus -> PCI)
*/
#define V3_LB_MAP_MAP_ADR 0xfff0
#define V3_LB_MAP_TYPE (7 << 1)
#define V3_LB_MAP_AD_LOW_EN (1 << 0)
#define V3_LB_MAP_TYPE_IACK (0 << 1)
#define V3_LB_MAP_TYPE_IO (1 << 1)
#define V3_LB_MAP_TYPE_MEM (3 << 1)
#define V3_LB_MAP_TYPE_CONFIG (5 << 1)
#define V3_LB_MAP_TYPE_MEM_MULTIPLE (6 << 1)
/* PCI MAP register bits (PCI -> Local bus) */
#define v3_addr_to_lb_map(a) (((a) >> 16) & V3_LB_MAP_MAP_ADR)
/*
* LB_BASE2 register bits (Local bus -> PCI IO)
*/
#define V3_LB_BASE2_ADR_BASE 0xff00
#define V3_LB_BASE2_SWAP (3 << 6)
#define V3_LB_BASE2_ENABLE (1 << 0)
#define v3_addr_to_lb_base2(a) (((a) >> 16) & V3_LB_BASE2_ADR_BASE)
/*
* LB_MAP2 register bits (Local bus -> PCI IO)
*/
#define V3_LB_MAP2_MAP_ADR 0xff00
#define v3_addr_to_lb_map2(a) (((a) >> 16) & V3_LB_MAP2_MAP_ADR)
#endif
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