7 files changed, 143 insertions, 0 deletions
diff --git a/include/asm-blackfin/config.h b/include/asm-blackfin/config.h
index 0ae838a..7455685 100644
--- a/include/asm-blackfin/config.h
+++ b/include/asm-blackfin/config.h
@@ -66,6 +66,11 @@
 # error CONFIG_PLL_BYPASS: Invalid value: must be 0 or 1
 #endif
 
+/* If we are using KGDB, make sure we defer exceptions */
+#ifdef CONFIG_CMD_KGDB
+# define CONFIG_EXCEPTION_DEFER	1
+#endif
+
 /* Using L1 scratch pad makes sense for everyone by default. */
 #ifndef CONFIG_LINUX_CMDLINE_ADDR
 # define CONFIG_LINUX_CMDLINE_ADDR L1_SRAM_SCRATCH
@@ -138,6 +143,8 @@
 #endif
 #ifndef CONFIG_SYS_CBSIZE
 # define CONFIG_SYS_CBSIZE 1024
+#elif defined(CONFIG_CMD_KGDB) && CONFIG_SYS_CBSIZE < 1024
+# error "kgdb needs cbsize to be >= 1024"
 #endif
 #ifndef CONFIG_SYS_BARGSIZE
 # define CONFIG_SYS_BARGSIZE CONFIG_SYS_CBSIZE
diff --git a/include/asm-blackfin/deferred.h b/include/asm-blackfin/deferred.h
new file mode 100644
index 0000000..82ceda3
--- /dev/null
+++ b/include/asm-blackfin/deferred.h
@@ -0,0 +1,20 @@
+/*
+ * U-boot - deferred register layout
+ *
+ * Copyright 2004-2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef _BLACKFIN_DEFER_H
+#define _BLACKFIN_DEFER_H
+
+#define deferred_regs_DCPLB_FAULT_ADDR	0
+#define deferred_regs_ICPLB_FAULT_ADDR	1
+#define deferred_regs_retx		2
+#define deferred_regs_SEQSTAT		3
+#define deferred_regs_SYSCFG		4
+#define deferred_regs_IMASK		5
+#define deferred_regs_last		6
+
+#endif /* _BLACKFIN_DEFER_H */
diff --git a/include/asm-blackfin/entry.h b/include/asm-blackfin/entry.h
index ef74d68..404144f 100644
--- a/include/asm-blackfin/entry.h
+++ b/include/asm-blackfin/entry.h
@@ -86,6 +86,11 @@
 	[--sp] = RETE;
 	[--sp] = SEQSTAT;
 	[--sp] = SYSCFG;
+#ifdef CONFIG_CMD_KGDB
+	p0.l = lo(IPEND)
+	p0.h = hi(IPEND)
+	r0 = [p0];
+#endif
 	[--sp] = r0;	/* Skip IPEND as well. */
 .endm
 
@@ -137,6 +142,11 @@
 	[--sp] = RETE;
 	[--sp] = SEQSTAT;
 	[--sp] = SYSCFG;
+#ifdef CONFIG_CMD_KGDB
+	p0.l = lo(IPEND)
+	p0.h = hi(IPEND)
+	r0 = [p0];
+#endif
 	[--sp] = r0;	/* Skip IPEND as well. */
 .endm
 
diff --git a/include/asm-blackfin/mach-common/bits/core.h b/include/asm-blackfin/mach-common/bits/core.h
index d8cee10..6db4f81 100644
--- a/include/asm-blackfin/mach-common/bits/core.h
+++ b/include/asm-blackfin/mach-common/bits/core.h
@@ -105,5 +105,8 @@
 #define SSSTEP			0x00000001	/* Supervisor Single Step */
 #define CCEN			0x00000002	/* Cycle Counter Enable */
 #define SNEN			0x00000004	/* Self-Nesting Interrupt Enable */
+#define SYSCFG_SSSTEP_P	0
+#define SYSCFG_CCEN_P	1
+#define SYSCFG_SCEN_P	2
 
 #endif
diff --git a/include/asm-blackfin/signal.h b/include/asm-blackfin/signal.h
new file mode 100644
index 0000000..7b1573c
--- /dev/null
+++ b/include/asm-blackfin/signal.h
@@ -0,0 +1 @@
+#include <asm-generic/signal.h>
diff --git a/include/asm-generic/signal.h b/include/asm-generic/signal.h
new file mode 100644
index 0000000..af93947
--- /dev/null
+++ b/include/asm-generic/signal.h
@@ -0,0 +1,101 @@
+#ifndef __ASM_GENERIC_SIGNAL_H
+#define __ASM_GENERIC_SIGNAL_H
+
+#include <linux/types.h>
+
+#define _NSIG		64
+#define _NSIG_BPW	BITS_PER_LONG
+#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
+
+#define SIGHUP		 1
+#define SIGINT		 2
+#define SIGQUIT		 3
+#define SIGILL		 4
+#define SIGTRAP		 5
+#define SIGABRT		 6
+#define SIGIOT		 6
+#define SIGBUS		 7
+#define SIGFPE		 8
+#define SIGKILL		 9
+#define SIGUSR1		10
+#define SIGSEGV		11
+#define SIGUSR2		12
+#define SIGPIPE		13
+#define SIGALRM		14
+#define SIGTERM		15
+#define SIGSTKFLT	16
+#define SIGCHLD		17
+#define SIGCONT		18
+#define SIGSTOP		19
+#define SIGTSTP		20
+#define SIGTTIN		21
+#define SIGTTOU		22
+#define SIGURG		23
+#define SIGXCPU		24
+#define SIGXFSZ		25
+#define SIGVTALRM	26
+#define SIGPROF		27
+#define SIGWINCH	28
+#define SIGIO		29
+#define SIGPOLL		SIGIO
+/*
+#define SIGLOST		29
+*/
+#define SIGPWR		30
+#define SIGSYS		31
+#define	SIGUNUSED	31
+
+/* These should not be considered constants from userland.  */
+#define SIGRTMIN	32
+#ifndef SIGRTMAX
+#define SIGRTMAX	_NSIG
+#endif
+
+/*
+ * SA_FLAGS values:
+ *
+ * SA_ONSTACK indicates that a registered stack_t will be used.
+ * SA_RESTART flag to get restarting signals (which were the default long ago)
+ * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
+ * SA_RESETHAND clears the handler when the signal is delivered.
+ * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
+ * SA_NODEFER prevents the current signal from being masked in the handler.
+ *
+ * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
+ * Unix names RESETHAND and NODEFER respectively.
+ */
+#define SA_NOCLDSTOP	0x00000001
+#define SA_NOCLDWAIT	0x00000002
+#define SA_SIGINFO	0x00000004
+#define SA_ONSTACK	0x08000000
+#define SA_RESTART	0x10000000
+#define SA_NODEFER	0x40000000
+#define SA_RESETHAND	0x80000000
+
+#define SA_NOMASK	SA_NODEFER
+#define SA_ONESHOT	SA_RESETHAND
+
+/*
+ * New architectures should not define the obsolete
+ *	SA_RESTORER	0x04000000
+ */
+
+/*
+ * sigaltstack controls
+ */
+#define SS_ONSTACK	1
+#define SS_DISABLE	2
+
+#define MINSIGSTKSZ	2048
+#define SIGSTKSZ	8192
+
+#ifndef __ASSEMBLY__
+typedef struct {
+	unsigned long sig[_NSIG_WORDS];
+} sigset_t;
+
+/* not actually used, but required for linux/syscalls.h */
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_GENERIC_SIGNAL_H */
diff --git a/include/configs/bfin_adi_common.h b/include/configs/bfin_adi_common.h
index 6a2f1c7..1896cf5 100644
--- a/include/configs/bfin_adi_common.h
+++ b/include/configs/bfin_adi_common.h
@@ -83,6 +83,7 @@
 # define CONFIG_CMD_CPLBINFO
 # define CONFIG_CMD_ELF
 # define CONFIG_ELF_SIMPLE_LOAD
+# define CONFIG_CMD_KGDB
 # define CONFIG_CMD_REGINFO
 # define CONFIG_CMD_STRINGS
 # if defined(__ADSPBF51x__) || defined(__ADSPBF52x__) || defined(__ADSPBF54x__)