187 lines
4.8 KiB
C
187 lines
4.8 KiB
C
/***************************************************************************
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* Copyright (C) 2005 by Dominic Rath *
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* Dominic.Rath@gmx.de *
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* *
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* Copyright (C) 2007,2008 Øyvind Harboe *
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* oyvind.harboe@zylin.com *
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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 as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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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 *
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* Free Software Foundation, Inc., *
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* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
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***************************************************************************/
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#ifndef XSCALE_H
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#define XSCALE_H
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#include "target.h"
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#include "register.h"
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#include "armv4_5.h"
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#include "armv4_5_mmu.h"
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#include "trace.h"
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#include "image.h"
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#define XSCALE_COMMON_MAGIC 0x58534341
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typedef struct xscale_jtag_s
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{
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/* position in JTAG scan chain */
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jtag_tap_t *tap;
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/* IR length and instructions */
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int ir_length;
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u32 dbgrx;
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u32 dbgtx;
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u32 ldic;
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u32 dcsr;
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} xscale_jtag_t;
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enum xscale_debug_reason
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{
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XSCALE_DBG_REASON_GENERIC,
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XSCALE_DBG_REASON_RESET,
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XSCALE_DBG_REASON_TB_FULL,
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};
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enum xscale_trace_entry_type
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{
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XSCALE_TRACE_MESSAGE = 0x0,
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XSCALE_TRACE_ADDRESS = 0x1,
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};
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typedef struct xscale_trace_entry_s
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{
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u8 data;
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enum xscale_trace_entry_type type;
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} xscale_trace_entry_t;
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typedef struct xscale_trace_data_s
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{
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xscale_trace_entry_t *entries;
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int depth;
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u32 chkpt0;
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u32 chkpt1;
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u32 last_instruction;
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struct xscale_trace_data_s *next;
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} xscale_trace_data_t;
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typedef struct xscale_trace_s
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{
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trace_status_t capture_status; /* current state of capture run */
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image_t *image; /* source for target opcodes */
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xscale_trace_data_t *data; /* linked list of collected trace data */
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int buffer_enabled; /* whether trace buffer is enabled */
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int buffer_fill; /* maximum number of trace runs to read (-1 for wrap-around) */
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int pc_ok;
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u32 current_pc;
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armv4_5_state_t core_state; /* current core state (ARM, Thumb, Jazelle) */
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} xscale_trace_t;
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typedef struct xscale_common_s
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{
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int common_magic;
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/* XScale registers (CP15, DBG) */
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reg_cache_t *reg_cache;
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/* pxa250, pxa255, pxa27x, ixp42x, ... */
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char *variant;
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xscale_jtag_t jtag_info;
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/* current state of the debug handler */
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int handler_installed;
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int handler_running;
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u32 handler_address;
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/* target-endian buffers with exception vectors */
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u32 low_vectors[8];
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u32 high_vectors[8];
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/* static low vectors */
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u8 static_low_vectors_set; /* bit field with static vectors set by the user */
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u8 static_high_vectors_set; /* bit field with static vectors set by the user */
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u32 static_low_vectors[8];
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u32 static_high_vectors[8];
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/* DCache cleaning */
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u32 cache_clean_address;
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/* whether hold_rst and ext_dbg_break should be set */
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int hold_rst;
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int external_debug_break;
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/* breakpoint / watchpoint handling */
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int dbr_available;
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int dbr0_used;
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int dbr1_used;
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int ibcr_available;
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int ibcr0_used;
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int ibcr1_used;
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u32 arm_bkpt;
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u16 thumb_bkpt;
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u8 vector_catch;
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xscale_trace_t trace;
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int arch_debug_reason;
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/* armv4/5 common stuff */
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armv4_5_common_t armv4_5_common;
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/* MMU/Caches */
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armv4_5_mmu_common_t armv4_5_mmu;
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u32 cp15_control_reg;
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/* possible future enhancements that go beyond XScale common stuff */
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void *arch_info;
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int fast_memory_access;
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} xscale_common_t;
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typedef struct xscale_reg_s
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{
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int dbg_handler_number;
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target_t *target;
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} xscale_reg_t;
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enum
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{
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XSCALE_MAINID, /* 0 */
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XSCALE_CACHETYPE,
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XSCALE_CTRL,
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XSCALE_AUXCTRL,
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XSCALE_TTB,
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XSCALE_DAC,
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XSCALE_FSR,
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XSCALE_FAR,
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XSCALE_PID,
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XSCALE_CPACCESS,
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XSCALE_IBCR0, /* 10 */
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XSCALE_IBCR1,
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XSCALE_DBR0,
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XSCALE_DBR1,
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XSCALE_DBCON,
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XSCALE_TBREG,
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XSCALE_CHKPT0,
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XSCALE_CHKPT1,
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XSCALE_DCSR,
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XSCALE_TX,
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XSCALE_RX, /* 20 */
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XSCALE_TXRXCTRL,
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};
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#define ERROR_XSCALE_NO_TRACE_DATA (-1500)
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#endif /* XSCALE_H */
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