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#ifndef _INC_XT2000_H_
#define _INC_XT2000_H_
/*
* THIS FILE IS GENERATED -- DO NOT MODIFY BY HAND
*
* include/asm-xtensa/xtensa/xt2000.h - Definitions specific to the
* Tensilica XT2000 Emulation Board
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 2002 Tensilica Inc.
*/
#include <xtensa/config/core.h>
#include <xtensa/config/system.h>
/*
* Default assignment of XT2000 devices to external interrupts.
*/
/* Ethernet interrupt: */
#ifdef XCHAL_EXTINT3_NUM
#define SONIC83934_INTNUM XCHAL_EXTINT3_NUM
#define SONIC83934_INTLEVEL XCHAL_EXTINT3_LEVEL
#define SONIC83934_INTMASK XCHAL_EXTINT3_MASK
#else
#define SONIC83934_INTMASK 0
#endif
/* DUART channel 1 interrupt (P1 - console): */
#ifdef XCHAL_EXTINT4_NUM
#define DUART16552_1_INTNUM XCHAL_EXTINT4_NUM
#define DUART16552_1_INTLEVEL XCHAL_EXTINT4_LEVEL
#define DUART16552_1_INTMASK XCHAL_EXTINT4_MASK
#else
#define DUART16552_1_INTMASK 0
#endif
/* DUART channel 2 interrupt (P2 - 2nd serial port): */
#ifdef XCHAL_EXTINT5_NUM
#define DUART16552_2_INTNUM XCHAL_EXTINT5_NUM
#define DUART16552_2_INTLEVEL XCHAL_EXTINT5_LEVEL
#define DUART16552_2_INTMASK XCHAL_EXTINT5_MASK
#else
#define DUART16552_2_INTMASK 0
#endif
/* FPGA-combined PCI/etc interrupts: */
#ifdef XCHAL_EXTINT6_NUM
#define XT2000_FPGAPCI_INTNUM XCHAL_EXTINT6_NUM
#define XT2000_FPGAPCI_INTLEVEL XCHAL_EXTINT6_LEVEL
#define XT2000_FPGAPCI_INTMASK XCHAL_EXTINT6_MASK
#else
#define XT2000_FPGAPCI_INTMASK 0
#endif
/*
* Device addresses.
*
* Note: for endianness-independence, use 32-bit loads and stores for all
* register accesses to Ethernet, DUART and LED devices. Undefined bits
* may need to be masked out if needed when reading if the actual register
* size is smaller than 32 bits.
*
* Note: XT2000 bus byte lanes are defined in terms of msbyte and lsbyte
* relative to the processor. So 32-bit registers are accessed consistently
* from both big and little endian processors. However, this means byte
* sequences are not consistent between big and little endian processors.
* This is fine for RAM, and for ROM if ROM is created for a specific
* processor (and thus has correct byte sequences). However this may be
* unexpected for Flash, which might contain a file-system that one wants
* to use for multiple processor configurations (eg. the Flash might contain
* the Ethernet card's address, endianness-independent application data, etc).
* That is, byte sequences written in Flash by a core of a given endianness
* will be byte-swapped when seen by a core of the other endianness.
* Someone implementing an endianness-independent Flash file system will
* likely handle this byte-swapping issue in the Flash driver software.
*/
#define DUART16552_XTAL_FREQ 18432000 /* crystal frequency in Hz */
#define XTBOARD_FLASH_MAXSIZE 0x4000000 /* 64 MB (max; depends on what is socketed!) */
#define XTBOARD_EPROM_MAXSIZE 0x0400000 /* 4 MB (max; depends on what is socketed!) */
#define XTBOARD_EEPROM_MAXSIZE 0x0080000 /* 512 kB (max; depends on what is socketed!) */
#define XTBOARD_ASRAM_SIZE 0x0100000 /* 1 MB */
#define XTBOARD_PCI_MEM_SIZE 0x8000000 /* 128 MB (allocated) */
#define XTBOARD_PCI_IO_SIZE 0x1000000 /* 16 MB (allocated) */
#ifdef XSHAL_IOBLOCK_BYPASS_PADDR
/* PCI memory space: */
# define XTBOARD_PCI_MEM_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0x0000000)
/* Socketed Flash (eg. 2 x 16-bit devices): */
# define XTBOARD_FLASH_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0x8000000)
/* PCI I/O space: */
# define XTBOARD_PCI_IO_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xC000000)
/* V3 PCI interface chip register/config space: */
# define XTBOARD_V3PCI_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD000000)
/* Bus Interface registers: */
# define XTBOARD_BUSINT_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD010000)
/* FPGA registers: */
# define XT2000_FPGAREGS_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD020000)
/* SONIC SN83934 Ethernet controller/transceiver: */
# define SONIC83934_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD030000)
/* 8-character bitmapped LED display: */
# define XTBOARD_LED_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD040000)
/* National-Semi PC16552D DUART: */
# define DUART16552_1_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD050020) /* channel 1 (P1 - console) */
# define DUART16552_2_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD050000) /* channel 2 (P2) */
/* Asynchronous Static RAM: */
# define XTBOARD_ASRAM_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD400000)
/* 8-bit EEPROM: */
# define XTBOARD_EEPROM_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD600000)
/* 2 x 16-bit EPROMs: */
# define XTBOARD_EPROM_PADDR (XSHAL_IOBLOCK_BYPASS_PADDR+0xD800000)
#endif /* XSHAL_IOBLOCK_BYPASS_PADDR */
/* These devices might be accessed cached: */
#ifdef XSHAL_IOBLOCK_CACHED_PADDR
# define XTBOARD_PCI_MEM_CACHED_PADDR (XSHAL_IOBLOCK_CACHED_PADDR+0x0000000)
# define XTBOARD_FLASH_CACHED_PADDR (XSHAL_IOBLOCK_CACHED_PADDR+0x8000000)
# define XTBOARD_ASRAM_CACHED_PADDR (XSHAL_IOBLOCK_CACHED_PADDR+0xD400000)
# define XTBOARD_EEPROM_CACHED_PADDR (XSHAL_IOBLOCK_CACHED_PADDR+0xD600000)
# define XTBOARD_EPROM_CACHED_PADDR (XSHAL_IOBLOCK_CACHED_PADDR+0xD800000)
#endif /* XSHAL_IOBLOCK_CACHED_PADDR */
/*** Same thing over again, this time with virtual addresses: ***/
#ifdef XSHAL_IOBLOCK_BYPASS_VADDR
/* PCI memory space: */
# define XTBOARD_PCI_MEM_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0x0000000)
/* Socketed Flash (eg. 2 x 16-bit devices): */
# define XTBOARD_FLASH_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0x8000000)
/* PCI I/O space: */
# define XTBOARD_PCI_IO_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xC000000)
/* V3 PCI interface chip register/config space: */
# define XTBOARD_V3PCI_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD000000)
/* Bus Interface registers: */
# define XTBOARD_BUSINT_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD010000)
/* FPGA registers: */
# define XT2000_FPGAREGS_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD020000)
/* SONIC SN83934 Ethernet controller/transceiver: */
# define SONIC83934_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD030000)
/* 8-character bitmapped LED display: */
# define XTBOARD_LED_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD040000)
/* National-Semi PC16552D DUART: */
# define DUART16552_1_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD050020) /* channel 1 (P1 - console) */
# define DUART16552_2_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD050000) /* channel 2 (P2) */
/* Asynchronous Static RAM: */
# define XTBOARD_ASRAM_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD400000)
/* 8-bit EEPROM: */
# define XTBOARD_EEPROM_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD600000)
/* 2 x 16-bit EPROMs: */
# define XTBOARD_EPROM_VADDR (XSHAL_IOBLOCK_BYPASS_VADDR+0xD800000)
#endif /* XSHAL_IOBLOCK_BYPASS_VADDR */
/* These devices might be accessed cached: */
#ifdef XSHAL_IOBLOCK_CACHED_VADDR
# define XTBOARD_PCI_MEM_CACHED_VADDR (XSHAL_IOBLOCK_CACHED_VADDR+0x0000000)
# define XTBOARD_FLASH_CACHED_VADDR (XSHAL_IOBLOCK_CACHED_VADDR+0x8000000)
# define XTBOARD_ASRAM_CACHED_VADDR (XSHAL_IOBLOCK_CACHED_VADDR+0xD400000)
# define XTBOARD_EEPROM_CACHED_VADDR (XSHAL_IOBLOCK_CACHED_VADDR+0xD600000)
# define XTBOARD_EPROM_CACHED_VADDR (XSHAL_IOBLOCK_CACHED_VADDR+0xD800000)
#endif /* XSHAL_IOBLOCK_CACHED_VADDR */
/* System ROM: */
#define XTBOARD_ROM_SIZE XSHAL_ROM_SIZE
#ifdef XSHAL_ROM_VADDR
#define XTBOARD_ROM_VADDR XSHAL_ROM_VADDR
#endif
#ifdef XSHAL_ROM_PADDR
#define XTBOARD_ROM_PADDR XSHAL_ROM_PADDR
#endif
/* System RAM: */
#define XTBOARD_RAM_SIZE XSHAL_RAM_SIZE
#ifdef XSHAL_RAM_VADDR
#define XTBOARD_RAM_VADDR XSHAL_RAM_VADDR
#endif
#ifdef XSHAL_RAM_PADDR
#define XTBOARD_RAM_PADDR XSHAL_RAM_PADDR
#endif
#define XTBOARD_RAM_BYPASS_VADDR XSHAL_RAM_BYPASS_VADDR
#define XTBOARD_RAM_BYPASS_PADDR XSHAL_RAM_BYPASS_PADDR
/*
* Things that depend on device addresses.
*/
#define XTBOARD_CACHEATTR_WRITEBACK XSHAL_XT2000_CACHEATTR_WRITEBACK
#define XTBOARD_CACHEATTR_WRITEALLOC XSHAL_XT2000_CACHEATTR_WRITEALLOC
#define XTBOARD_CACHEATTR_WRITETHRU XSHAL_XT2000_CACHEATTR_WRITETHRU
#define XTBOARD_CACHEATTR_BYPASS XSHAL_XT2000_CACHEATTR_BYPASS
#define XTBOARD_CACHEATTR_DEFAULT XSHAL_XT2000_CACHEATTR_DEFAULT
#define XTBOARD_BUSINT_PIPE_REGIONS XSHAL_XT2000_PIPE_REGIONS
#define XTBOARD_BUSINT_SDRAM_REGIONS XSHAL_XT2000_SDRAM_REGIONS
/*
* BusLogic (FPGA) registers.
* All these registers are normally accessed using 32-bit loads/stores.
*/
/* Register offsets: */
#define XT2000_DATECD_OFS 0x00 /* date code (read-only) */
#define XT2000_STSREG_OFS 0x04 /* status (read-only) */
#define XT2000_SYSLED_OFS 0x08 /* system LED */
#define XT2000_WRPROT_OFS 0x0C /* write protect */
#define XT2000_SWRST_OFS 0x10 /* software reset */
#define XT2000_SYSRST_OFS 0x14 /* system (peripherals) reset */
#define XT2000_IMASK_OFS 0x18 /* interrupt mask */
#define XT2000_ISTAT_OFS 0x1C /* interrupt status */
#define XT2000_V3CFG_OFS 0x20 /* V3 config (V320 PCI) */
/* Physical register addresses: */
#ifdef XT2000_FPGAREGS_PADDR
#define XT2000_DATECD_PADDR (XT2000_FPGAREGS_PADDR+XT2000_DATECD_OFS)
#define XT2000_STSREG_PADDR (XT2000_FPGAREGS_PADDR+XT2000_STSREG_OFS)
#define XT2000_SYSLED_PADDR (XT2000_FPGAREGS_PADDR+XT2000_SYSLED_OFS)
#define XT2000_WRPROT_PADDR (XT2000_FPGAREGS_PADDR+XT2000_WRPROT_OFS)
#define XT2000_SWRST_PADDR (XT2000_FPGAREGS_PADDR+XT2000_SWRST_OFS)
#define XT2000_SYSRST_PADDR (XT2000_FPGAREGS_PADDR+XT2000_SYSRST_OFS)
#define XT2000_IMASK_PADDR (XT2000_FPGAREGS_PADDR+XT2000_IMASK_OFS)
#define XT2000_ISTAT_PADDR (XT2000_FPGAREGS_PADDR+XT2000_ISTAT_OFS)
#define XT2000_V3CFG_PADDR (XT2000_FPGAREGS_PADDR+XT2000_V3CFG_OFS)
#endif
/* Virtual register addresses: */
#ifdef XT2000_FPGAREGS_VADDR
#define XT2000_DATECD_VADDR (XT2000_FPGAREGS_VADDR+XT2000_DATECD_OFS)
#define XT2000_STSREG_VADDR (XT2000_FPGAREGS_VADDR+XT2000_STSREG_OFS)
#define XT2000_SYSLED_VADDR (XT2000_FPGAREGS_VADDR+XT2000_SYSLED_OFS)
#define XT2000_WRPROT_VADDR (XT2000_FPGAREGS_VADDR+XT2000_WRPROT_OFS)
#define XT2000_SWRST_VADDR (XT2000_FPGAREGS_VADDR+XT2000_SWRST_OFS)
#define XT2000_SYSRST_VADDR (XT2000_FPGAREGS_VADDR+XT2000_SYSRST_OFS)
#define XT2000_IMASK_VADDR (XT2000_FPGAREGS_VADDR+XT2000_IMASK_OFS)
#define XT2000_ISTAT_VADDR (XT2000_FPGAREGS_VADDR+XT2000_ISTAT_OFS)
#define XT2000_V3CFG_VADDR (XT2000_FPGAREGS_VADDR+XT2000_V3CFG_OFS)
/* Register access (for C code): */
#define XT2000_DATECD_REG (*(volatile unsigned*) XT2000_DATECD_VADDR)
#define XT2000_STSREG_REG (*(volatile unsigned*) XT2000_STSREG_VADDR)
#define XT2000_SYSLED_REG (*(volatile unsigned*) XT2000_SYSLED_VADDR)
#define XT2000_WRPROT_REG (*(volatile unsigned*) XT2000_WRPROT_VADDR)
#define XT2000_SWRST_REG (*(volatile unsigned*) XT2000_SWRST_VADDR)
#define XT2000_SYSRST_REG (*(volatile unsigned*) XT2000_SYSRST_VADDR)
#define XT2000_IMASK_REG (*(volatile unsigned*) XT2000_IMASK_VADDR)
#define XT2000_ISTAT_REG (*(volatile unsigned*) XT2000_ISTAT_VADDR)
#define XT2000_V3CFG_REG (*(volatile unsigned*) XT2000_V3CFG_VADDR)
#endif
/* DATECD (date code) bit fields: */
/* BCD-coded month (01..12): */
#define XT2000_DATECD_MONTH_SHIFT 24
#define XT2000_DATECD_MONTH_BITS 8
#define XT2000_DATECD_MONTH_MASK 0xFF000000
/* BCD-coded day (01..31): */
#define XT2000_DATECD_DAY_SHIFT 16
#define XT2000_DATECD_DAY_BITS 8
#define XT2000_DATECD_DAY_MASK 0x00FF0000
/* BCD-coded year (2001..9999): */
#define XT2000_DATECD_YEAR_SHIFT 0
#define XT2000_DATECD_YEAR_BITS 16
#define XT2000_DATECD_YEAR_MASK 0x0000FFFF
/* STSREG (status) bit fields: */
/* Switch SW3 setting bit fields (0=off/up, 1=on/down): */
#define XT2000_STSREG_SW3_SHIFT 0
#define XT2000_STSREG_SW3_BITS 4
#define XT2000_STSREG_SW3_MASK 0x0000000F
/* Boot-select bits of switch SW3: */
#define XT2000_STSREG_BOOTSEL_SHIFT 0
#define XT2000_STSREG_BOOTSEL_BITS 2
#define XT2000_STSREG_BOOTSEL_MASK 0x00000003
/* Boot-select values: */
#define XT2000_STSREG_BOOTSEL_FLASH 0
#define XT2000_STSREG_BOOTSEL_EPROM16 1
#define XT2000_STSREG_BOOTSEL_PROM8 2
#define XT2000_STSREG_BOOTSEL_ASRAM 3
/* User-defined bits of switch SW3: */
#define XT2000_STSREG_SW3_2_SHIFT 2
#define XT2000_STSREG_SW3_2_MASK 0x00000004
#define XT2000_STSREG_SW3_3_SHIFT 3
#define XT2000_STSREG_SW3_3_MASK 0x00000008
/* SYSLED (system LED) bit fields: */
/* LED control bit (0=off, 1=on): */
#define XT2000_SYSLED_LEDON_SHIFT 0
#define XT2000_SYSLED_LEDON_MASK 0x00000001
/* WRPROT (write protect) bit fields (0=writable, 1=write-protected [default]): */
/* Flash write protect: */
#define XT2000_WRPROT_FLWP_SHIFT 0
#define XT2000_WRPROT_FLWP_MASK 0x00000001
/* Reserved but present write protect bits: */
#define XT2000_WRPROT_WRP_SHIFT 1
#define XT2000_WRPROT_WRP_BITS 7
#define XT2000_WRPROT_WRP_MASK 0x000000FE
/* SWRST (software reset; allows s/w to generate power-on equivalent reset): */
/* Software reset bits: */
#define XT2000_SWRST_SWR_SHIFT 0
#define XT2000_SWRST_SWR_BITS 16
#define XT2000_SWRST_SWR_MASK 0x0000FFFF
/* Software reset value -- writing this value resets the board: */
#define XT2000_SWRST_RESETVALUE 0x0000DEAD
/* SYSRST (system reset; controls reset of individual peripherals): */
/* All-device reset: */
#define XT2000_SYSRST_ALL_SHIFT 0
#define XT2000_SYSRST_ALL_BITS 4
#define XT2000_SYSRST_ALL_MASK 0x0000000F
/* HDSP-2534 LED display reset (1=reset, 0=nothing): */
#define XT2000_SYSRST_LED_SHIFT 0
#define XT2000_SYSRST_LED_MASK 0x00000001
/* Sonic DP83934 Ethernet controller reset (1=reset, 0=nothing): */
#define XT2000_SYSRST_SONIC_SHIFT 1
#define XT2000_SYSRST_SONIC_MASK 0x00000002
/* DP16552 DUART reset (1=reset, 0=nothing): */
#define XT2000_SYSRST_DUART_SHIFT 2
#define XT2000_SYSRST_DUART_MASK 0x00000004
/* V3 V320 PCI bridge controller reset (1=reset, 0=nothing): */
#define XT2000_SYSRST_V3_SHIFT 3
#define XT2000_SYSRST_V3_MASK 0x00000008
/* IMASK (interrupt mask; 0=disable, 1=enable): */
/* ISTAT (interrupt status; 0=inactive, 1=pending): */
/* PCI INTP interrupt: */
#define XT2000_INTMUX_PCI_INTP_SHIFT 2
#define XT2000_INTMUX_PCI_INTP_MASK 0x00000004
/* PCI INTS interrupt: */
#define XT2000_INTMUX_PCI_INTS_SHIFT 3
#define XT2000_INTMUX_PCI_INTS_MASK 0x00000008
/* PCI INTD interrupt: */
#define XT2000_INTMUX_PCI_INTD_SHIFT 4
#define XT2000_INTMUX_PCI_INTD_MASK 0x00000010
/* V320 PCI controller interrupt: */
#define XT2000_INTMUX_V3_SHIFT 5
#define XT2000_INTMUX_V3_MASK 0x00000020
/* PCI ENUM interrupt: */
#define XT2000_INTMUX_PCI_ENUM_SHIFT 6
#define XT2000_INTMUX_PCI_ENUM_MASK 0x00000040
/* PCI DEG interrupt: */
#define XT2000_INTMUX_PCI_DEG_SHIFT 7
#define XT2000_INTMUX_PCI_DEG_MASK 0x00000080
/* V3CFG (V3 config, V320 PCI controller): */
/* V3 address control (0=pass-thru, 1=V3 address bits 31:28 set to 4'b0001 [default]): */
#define XT2000_V3CFG_V3ADC_SHIFT 0
#define XT2000_V3CFG_V3ADC_MASK 0x00000001
/* I2C Devices */
#define XT2000_I2C_RTC_ID 0x68
#define XT2000_I2C_NVRAM0_ID 0x56 /* 1st 256 byte block */
#define XT2000_I2C_NVRAM1_ID 0x57 /* 2nd 256 byte block */
/* NVRAM Board Info structure: */
#define XT2000_NVRAM_SIZE 512
#define XT2000_NVRAM_BINFO_START 0x100
#define XT2000_NVRAM_BINFO_SIZE 0x20
#define XT2000_NVRAM_BINFO_VERSION 0x10 /* version 1.0 */
#if 0
#define XT2000_NVRAM_BINFO_VERSION_OFFSET 0x00
#define XT2000_NVRAM_BINFO_VERSION_SIZE 0x1
#define XT2000_NVRAM_BINFO_ETH_ADDR_OFFSET 0x02
#define XT2000_NVRAM_BINFO_ETH_ADDR_SIZE 0x6
#define XT2000_NVRAM_BINFO_SN_OFFSET 0x10
#define XT2000_NVRAM_BINFO_SN_SIZE 0xE
#define XT2000_NVRAM_BINFO_CRC_OFFSET 0x1E
#define XT2000_NVRAM_BINFO_CRC_SIZE 0x2
#endif /*0*/
#if !defined(__ASSEMBLY__) && !defined(_NOCLANGUAGE)
typedef struct xt2000_nvram_binfo {
unsigned char version;
unsigned char reserved1;
unsigned char eth_addr[6];
unsigned char reserved8[8];
unsigned char serialno[14];
unsigned char crc[2]; /* 16-bit CRC */
} xt2000_nvram_binfo;
#endif /*!__ASSEMBLY__ && !_NOCLANGUAGE*/
#endif /*_INC_XT2000_H_*/
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