Blackfin arch: add supporting for kgdb

Signed-off-by: Sonic Zhang <[email protected]> Signed-off-by: Bryan Wu <[email protected]>
yshchan · Oct 13, 2008 · a5ac012 · a5ac012
1 parent 5d2e321
commit a5ac012
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Showing 8 changed files with 606 additions and 350 deletions.
diff --git a/Documentation/blackfin/kgdb.txt b/Documentation/blackfin/kgdb.txt
diff --git a/arch/blackfin/Kconfig.debug b/arch/blackfin/Kconfig.debug
@@ -2,6 +2,9 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
+config HAVE_ARCH_KGDB
+       def_bool y
+
 config DEBUG_MMRS
 	bool "Generate Blackfin MMR tree"
 	select DEBUG_FS

diff --git a/arch/blackfin/include/asm/kgdb.h b/arch/blackfin/include/asm/kgdb.h
@@ -124,9 +124,16 @@ enum regnames {
 /* 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
+static inline void arch_kgdb_breakpoint(void)
+{
+	asm("   EXCPT 2;");
+}
+#define BREAK_INSTR_SIZE	2
+#define CACHE_FLUSH_IS_SAFE	1
+#define HW_INST_WATCHPOINT_NUM	6
+#define HW_WATCHPOINT_NUM	8
+#define TYPE_INST_WATCHPOINT	0
+#define TYPE_DATA_WATCHPOINT	1
 
 /* Instruction watchpoint address control register bits mask */
 #define WPPWR		0x1
@@ -163,10 +170,11 @@ enum regnames {
 #define WPDAEN1		0x8
 #define WPDCNTEN0	0x10
 #define WPDCNTEN1	0x20
+
 #define WPDSRC0		0xc0
-#define WPDACC0		0x300
+#define WPDACC0_OFFSET	8
 #define WPDSRC1		0xc00
-#define WPDACC1		0x3000
+#define WPDACC1_OFFSET	12
 
 /* Watchpoint status register bits mask */
 #define STATIA0		0x1
@@ -178,7 +186,4 @@ enum regnames {
 #define STATDA0		0x40
 #define STATDA1		0x80
 
-extern void kgdb_print(const char *fmt, ...);
-extern void init_kgdb_uart(void);
-
 #endif