| /* |
| * xtensa/config/system.h -- HAL definitions that are dependent on SYSTEM configuration |
| * |
| * NOTE: The location and contents of this file are highly subject to change. |
| * |
| * Source for configuration-independent binaries (which link in a |
| * configuration-specific HAL library) must NEVER include this file. |
| * The HAL itself has historically included this file in some instances, |
| * but this is not appropriate either, because the HAL is meant to be |
| * core-specific but system independent. |
| */ |
| |
| /* |
| * Copyright (c) 2003 Tensilica, Inc. All Rights Reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of version 2.1 of the GNU Lesser General Public |
| * License as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * Further, this software is distributed without any warranty that it is |
| * free of the rightful claim of any third person regarding infringement |
| * or the like. Any license provided herein, whether implied or |
| * otherwise, applies only to this software file. Patent licenses, if |
| * any, provided herein do not apply to combinations of this program with |
| * other software, or any other product whatsoever. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this program; if not, write the Free Software |
| * Foundation, Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, |
| * USA. |
| */ |
| |
| |
| #ifndef XTENSA_CONFIG_SYSTEM_H |
| #define XTENSA_CONFIG_SYSTEM_H |
| |
| /*#include <xtensa/hal.h>*/ |
| |
| |
| |
| /*---------------------------------------------------------------------- |
| DEVICE ADDRESSES |
| ----------------------------------------------------------------------*/ |
| |
| /* |
| * Strange place to find these, but the configuration GUI |
| * allows moving these around to account for various core |
| * configurations. Specific boards (and their BSP software) |
| * will have specific meanings for these components. |
| */ |
| |
| /* I/O Block areas: */ |
| #define XSHAL_IOBLOCK_CACHED_VADDR 0xE0000000 |
| #define XSHAL_IOBLOCK_CACHED_PADDR 0xF0000000 |
| #define XSHAL_IOBLOCK_CACHED_SIZE 0x0E000000 |
| |
| #define XSHAL_IOBLOCK_BYPASS_VADDR 0xF0000000 |
| #define XSHAL_IOBLOCK_BYPASS_PADDR 0xF0000000 |
| #define XSHAL_IOBLOCK_BYPASS_SIZE 0x0E000000 |
| |
| /* System ROM: */ |
| #define XSHAL_ROM_VADDR 0xEE000000 |
| #define XSHAL_ROM_PADDR 0xFE000000 |
| #define XSHAL_ROM_SIZE 0x00400000 |
| /* Largest available area (free of vectors): */ |
| #define XSHAL_ROM_AVAIL_VADDR 0xEE00052C |
| #define XSHAL_ROM_AVAIL_VSIZE 0x003FFAD4 |
| |
| /* System RAM: */ |
| #define XSHAL_RAM_VADDR 0xD0000000 |
| #define XSHAL_RAM_PADDR 0x00000000 |
| #define XSHAL_RAM_VSIZE 0x08000000 |
| #define XSHAL_RAM_PSIZE 0x10000000 |
| #define XSHAL_RAM_SIZE XSHAL_RAM_PSIZE |
| /* Largest available area (free of vectors): */ |
| #define XSHAL_RAM_AVAIL_VADDR 0xD0000370 |
| #define XSHAL_RAM_AVAIL_VSIZE 0x07FFFC90 |
| |
| /* |
| * Shadow system RAM (same device as system RAM, at different address). |
| * (Emulation boards need this for the SONIC Ethernet driver |
| * when data caches are configured for writeback mode.) |
| * NOTE: on full MMU configs, this points to the BYPASS virtual address |
| * of system RAM, ie. is the same as XSHAL_RAM_* except that virtual |
| * addresses are viewed through the BYPASS static map rather than |
| * the CACHED static map. |
| */ |
| #define XSHAL_RAM_BYPASS_VADDR 0xD8000000 |
| #define XSHAL_RAM_BYPASS_PADDR 0x00000000 |
| #define XSHAL_RAM_BYPASS_PSIZE 0x08000000 |
| |
| /* Alternate system RAM (different device than system RAM): */ |
| #define XSHAL_ALTRAM_VADDR 0xCEE00000 |
| #define XSHAL_ALTRAM_PADDR 0xC0000000 |
| #define XSHAL_ALTRAM_SIZE 0x00200000 |
| |
| |
| /*---------------------------------------------------------------------- |
| * DEVICE-ADDRESS DEPENDENT... |
| * |
| * Values written to CACHEATTR special register (or its equivalent) |
| * to enable and disable caches in various modes. |
| *----------------------------------------------------------------------*/ |
| |
| /*---------------------------------------------------------------------- |
| BACKWARD COMPATIBILITY ... |
| ----------------------------------------------------------------------*/ |
| |
| /* |
| * NOTE: the following two macros are DEPRECATED. Use the latter |
| * board-specific macros instead, which are specially tuned for the |
| * particular target environments' memory maps. |
| */ |
| #define XSHAL_CACHEATTR_BYPASS XSHAL_XT2000_CACHEATTR_BYPASS /* disable caches in bypass mode */ |
| #define XSHAL_CACHEATTR_DEFAULT XSHAL_XT2000_CACHEATTR_DEFAULT /* default setting to enable caches (no writeback!) */ |
| |
| /*---------------------------------------------------------------------- |
| ISS (Instruction Set Simulator) SPECIFIC ... |
| ----------------------------------------------------------------------*/ |
| |
| #define XSHAL_ISS_CACHEATTR_WRITEBACK 0x1122222F /* enable caches in write-back mode */ |
| #define XSHAL_ISS_CACHEATTR_WRITEALLOC 0x1122222F /* enable caches in write-allocate mode */ |
| #define XSHAL_ISS_CACHEATTR_WRITETHRU 0x1122222F /* enable caches in write-through mode */ |
| #define XSHAL_ISS_CACHEATTR_BYPASS 0x2222222F /* disable caches in bypass mode */ |
| #define XSHAL_ISS_CACHEATTR_DEFAULT XSHAL_ISS_CACHEATTR_WRITEBACK /* default setting to enable caches */ |
| |
| /* For Coware only: */ |
| #define XSHAL_COWARE_CACHEATTR_WRITEBACK 0x11222222 /* enable caches in write-back mode */ |
| #define XSHAL_COWARE_CACHEATTR_WRITEALLOC 0x11222222 /* enable caches in write-allocate mode */ |
| #define XSHAL_COWARE_CACHEATTR_WRITETHRU 0x11222222 /* enable caches in write-through mode */ |
| #define XSHAL_COWARE_CACHEATTR_BYPASS 0x22222222 /* disable caches in bypass mode */ |
| #define XSHAL_COWARE_CACHEATTR_DEFAULT XSHAL_COWARE_CACHEATTR_WRITEBACK /* default setting to enable caches */ |
| |
| /* For BFM and other purposes: */ |
| #define XSHAL_ALLVALID_CACHEATTR_WRITEBACK 0x11222222 /* enable caches without any invalid regions */ |
| #define XSHAL_ALLVALID_CACHEATTR_DEFAULT XSHAL_ALLVALID_CACHEATTR_WRITEBACK /* default setting for caches without any invalid regions */ |
| |
| #define XSHAL_ISS_PIPE_REGIONS 0 |
| #define XSHAL_ISS_SDRAM_REGIONS 0 |
| |
| |
| /*---------------------------------------------------------------------- |
| XT2000 BOARD SPECIFIC ... |
| ----------------------------------------------------------------------*/ |
| |
| #define XSHAL_XT2000_CACHEATTR_WRITEBACK 0x22FFFFFF /* enable caches in write-back mode */ |
| #define XSHAL_XT2000_CACHEATTR_WRITEALLOC 0x22FFFFFF /* enable caches in write-allocate mode */ |
| #define XSHAL_XT2000_CACHEATTR_WRITETHRU 0x22FFFFFF /* enable caches in write-through mode */ |
| #define XSHAL_XT2000_CACHEATTR_BYPASS 0x22FFFFFF /* disable caches in bypass mode */ |
| #define XSHAL_XT2000_CACHEATTR_DEFAULT XSHAL_XT2000_CACHEATTR_WRITEBACK /* default setting to enable caches */ |
| |
| #define XSHAL_XT2000_PIPE_REGIONS 0x00001000 /* BusInt pipeline regions */ |
| #define XSHAL_XT2000_SDRAM_REGIONS 0x00000005 /* BusInt SDRAM regions */ |
| |
| |
| /*---------------------------------------------------------------------- |
| VECTOR SIZES |
| ----------------------------------------------------------------------*/ |
| |
| /* |
| * Sizes allocated to vectors by the system (memory map) configuration. |
| * These sizes are constrained by core configuration (eg. one vector's |
| * code cannot overflow into another vector) but are dependent on the |
| * system or board (or LSP) memory map configuration. |
| * |
| * Whether or not each vector happens to be in a system ROM is also |
| * a system configuration matter, sometimes useful, included here also: |
| */ |
| #define XSHAL_RESET_VECTOR_SIZE 0x000004E0 |
| #define XSHAL_RESET_VECTOR_ISROM 1 |
| #define XSHAL_USER_VECTOR_SIZE 0x0000001C |
| #define XSHAL_USER_VECTOR_ISROM 0 |
| #define XSHAL_PROGRAMEXC_VECTOR_SIZE XSHAL_USER_VECTOR_SIZE /* for backward compatibility */ |
| #define XSHAL_USEREXC_VECTOR_SIZE XSHAL_USER_VECTOR_SIZE /* for backward compatibility */ |
| #define XSHAL_KERNEL_VECTOR_SIZE 0x0000001C |
| #define XSHAL_KERNEL_VECTOR_ISROM 0 |
| #define XSHAL_STACKEDEXC_VECTOR_SIZE XSHAL_KERNEL_VECTOR_SIZE /* for backward compatibility */ |
| #define XSHAL_KERNELEXC_VECTOR_SIZE XSHAL_KERNEL_VECTOR_SIZE /* for backward compatibility */ |
| #define XSHAL_DOUBLEEXC_VECTOR_SIZE 0x000000E0 |
| #define XSHAL_DOUBLEEXC_VECTOR_ISROM 0 |
| #define XSHAL_WINDOW_VECTORS_SIZE 0x00000180 |
| #define XSHAL_WINDOW_VECTORS_ISROM 0 |
| #define XSHAL_INTLEVEL2_VECTOR_SIZE 0x0000000C |
| #define XSHAL_INTLEVEL2_VECTOR_ISROM 0 |
| #define XSHAL_INTLEVEL3_VECTOR_SIZE 0x0000000C |
| #define XSHAL_INTLEVEL3_VECTOR_ISROM 0 |
| #define XSHAL_INTLEVEL4_VECTOR_SIZE 0x0000000C |
| #define XSHAL_INTLEVEL4_VECTOR_ISROM 1 |
| #define XSHAL_DEBUG_VECTOR_SIZE XSHAL_INTLEVEL4_VECTOR_SIZE |
| #define XSHAL_DEBUG_VECTOR_ISROM XSHAL_INTLEVEL4_VECTOR_ISROM |
| |
| |
| #endif /*XTENSA_CONFIG_SYSTEM_H*/ |
| |
