Blackfin arch: kgdb specific code

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

1 files changed, 183 insertions, 0 deletions

diff --git a/include/asm-blackfin/kgdb.h b/include/asm-blackfin/kgdb.h
new file mode 100644
index 000000000000..532bd9052004
--- /dev/null
+++ b/include/asm-blackfin/kgdb.h
@@ -0,0 +1,183 @@
+/*
+ * File:         include/asm-blackfin/kgdb.h
+ * Based on:
+ * Author:       Sonic Zhang
+ *
+ * Created:
+ * Description:
+ *
+ * Rev:          $Id: kgdb_bfin_linux-2.6.x.patch 4934 2007-02-13 09:32:11Z sonicz $
+ *
+ * Modified:
+ *               Copyright 2005-2006 Analog Devices Inc.
+ *
+ * Bugs:         Enter bugs at http://blackfin.uclinux.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef __ASM_BLACKFIN_KGDB_H__
+#define __ASM_BLACKFIN_KGDB_H__
+
+#include <linux/ptrace.h>
+
+/* gdb locks */
+#define KGDB_MAX_NO_CPUS 8
+
+/************************************************************************/
+/* BUFMAX defines the maximum number of characters in inbound/outbound buffers*/
+/* at least NUMREGBYTES*2 are needed for register packets */
+/* Longer buffer is needed to list all threads */
+#define BUFMAX 2048
+
+/*
+ *  Note that this register image is different from
+ *  the register image that Linux produces at interrupt time.
+ *  
+ *  Linux's register image is defined by struct pt_regs in ptrace.h.
+ */
+enum regnames {
+  /* Core Registers */
+  BFIN_R0 = 0,
+  BFIN_R1,
+  BFIN_R2,
+  BFIN_R3,
+  BFIN_R4,
+  BFIN_R5,
+  BFIN_R6,
+  BFIN_R7,
+  BFIN_P0,
+  BFIN_P1,
+  BFIN_P2,
+  BFIN_P3,
+  BFIN_P4,
+  BFIN_P5,
+  BFIN_SP,
+  BFIN_FP,
+  BFIN_I0,
+  BFIN_I1,
+  BFIN_I2,
+  BFIN_I3,
+  BFIN_M0,
+  BFIN_M1,
+  BFIN_M2,
+  BFIN_M3,
+  BFIN_B0,
+  BFIN_B1,
+  BFIN_B2,
+  BFIN_B3,
+  BFIN_L0,
+  BFIN_L1,
+  BFIN_L2,
+  BFIN_L3,
+  BFIN_A0_DOT_X,
+  BFIN_A0_DOT_W,
+  BFIN_A1_DOT_X,
+  BFIN_A1_DOT_W,
+  BFIN_ASTAT,
+  BFIN_RETS,
+  BFIN_LC0,
+  BFIN_LT0,
+  BFIN_LB0,
+  BFIN_LC1,
+  BFIN_LT1,
+  BFIN_LB1,
+  BFIN_CYCLES,
+  BFIN_CYCLES2,
+  BFIN_USP,
+  BFIN_SEQSTAT,
+  BFIN_SYSCFG,
+  BFIN_RETI,
+  BFIN_RETX,
+  BFIN_RETN,
+  BFIN_RETE,
+  
+  /* Pseudo Registers */
+  BFIN_PC,
+  BFIN_CC,
+  BFIN_EXTRA1,          /* Address of .text section.  */
+  BFIN_EXTRA2,          /* Address of .data section.  */
+  BFIN_EXTRA3,          /* Address of .bss section.  */
+  BFIN_FDPIC_EXEC, 
+  BFIN_FDPIC_INTERP,
+
+  /* MMRs */
+  BFIN_IPEND,
+
+  /* LAST ENTRY SHOULD NOT BE CHANGED.  */
+  BFIN_NUM_REGS         /* The number of all registers.  */
+};
+
+/* Number of bytes of registers.  */
+#define NUMREGBYTES BFIN_NUM_REGS*4
+
+#define BREAKPOINT() asm("   EXCPT 2;");
+#define BREAK_INSTR_SIZE       2
+#define HW_BREAKPOINT_NUM               6
+
+/* Instruction watchpoint address control register bits mask */
+#define WPPWR           0x1
+#define WPIREN01        0x2
+#define WPIRINV01       0x4
+#define WPIAEN0         0x8
+#define WPIAEN1         0x10
+#define WPICNTEN0       0x20
+#define WPICNTEN1       0x40
+#define EMUSW0          0x80
+#define EMUSW1          0x100
+#define WPIREN23        0x200
+#define WPIRINV23       0x400
+#define WPIAEN2         0x800
+#define WPIAEN3         0x1000
+#define WPICNTEN2       0x2000
+#define WPICNTEN3       0x4000
+#define EMUSW2          0x8000
+#define EMUSW3          0x10000
+#define WPIREN45        0x20000
+#define WPIRINV45       0x40000
+#define WPIAEN4         0x80000
+#define WPIAEN5         0x100000
+#define WPICNTEN4       0x200000
+#define WPICNTEN5       0x400000
+#define EMUSW4          0x800000
+#define EMUSW5          0x1000000
+#define WPAND           0x2000000
+
+/* Data watchpoint address control register bits mask */
+#define WPDREN01        0x1
+#define WPDRINV01       0x2
+#define WPDAEN0         0x4
+#define WPDAEN1         0x8
+#define WPDCNTEN0       0x10
+#define WPDCNTEN1       0x20
+#define WPDSRC0         0xc0
+#define WPDACC0         0x300
+#define WPDSRC1         0xc00
+#define WPDACC1         0x3000
+
+/* Watchpoint status register bits mask */
+#define STATIA0         0x1
+#define STATIA1         0x2
+#define STATIA2         0x4
+#define STATIA3         0x8
+#define STATIA4         0x10
+#define STATIA5         0x20
+#define STATDA0         0x40
+#define STATDA1         0x80
+
+extern void kgdb_print(const char *fmt, ...);
+
+#endif