Merge branch 'linus' into core/iommu

1 files changed, 118 insertions, 0 deletions

diff --git a/arch/m68k/include/asm/mcfwdebug.h b/arch/m68k/include/asm/mcfwdebug.h
new file mode 100644
index 00000000000..27f70e45d70
--- /dev/null
+++ b/arch/m68k/include/asm/mcfwdebug.h
@@ -0,0 +1,118 @@
+/****************************************************************************/
+
+/*
+ *	mcfdebug.h -- ColdFire Debug Module support.
+ *
+ * 	(C) Copyright 2001, Lineo Inc. (www.lineo.com) 
+ */
+
+/****************************************************************************/
+#ifndef mcfdebug_h
+#define mcfdebug_h
+/****************************************************************************/
+
+/* Define the debug module registers */
+#define MCFDEBUG_CSR	0x0			/* Configuration status		*/
+#define MCFDEBUG_BAAR	0x5			/* BDM address attribute	*/
+#define MCFDEBUG_AATR	0x6			/* Address attribute trigger	*/
+#define MCFDEBUG_TDR	0x7			/* Trigger definition		*/
+#define MCFDEBUG_PBR	0x8			/* PC breakpoint		*/
+#define MCFDEBUG_PBMR	0x9			/* PC breakpoint mask		*/
+#define MCFDEBUG_ABHR	0xc			/* High address breakpoint	*/
+#define MCFDEBUG_ABLR	0xd			/* Low address breakpoint	*/
+#define MCFDEBUG_DBR	0xe			/* Data breakpoint		*/
+#define MCFDEBUG_DBMR	0xf			/* Data breakpoint mask		*/
+
+/* Define some handy constants for the trigger definition register */
+#define MCFDEBUG_TDR_TRC_DISP	0x00000000	/* display on DDATA only	*/
+#define MCFDEBUG_TDR_TRC_HALT	0x40000000	/* Processor halt on BP		*/
+#define MCFDEBUG_TDR_TRC_INTR	0x80000000	/* Debug intr on BP		*/
+#define MCFDEBUG_TDR_LXT1	0x00004000	/* TDR level 1			*/
+#define MCFDEBUG_TDR_LXT2	0x00008000	/* TDR level 2			*/
+#define MCFDEBUG_TDR_EBL1	0x00002000	/* Enable breakpoint level 1	*/
+#define MCFDEBUG_TDR_EBL2	0x20000000	/* Enable breakpoint level 2	*/
+#define MCFDEBUG_TDR_EDLW1	0x00001000	/* Enable data BP longword	*/
+#define MCFDEBUG_TDR_EDLW2	0x10000000
+#define MCFDEBUG_TDR_EDWL1	0x00000800	/* Enable data BP lower word	*/
+#define MCFDEBUG_TDR_EDWL2	0x08000000
+#define MCFDEBUG_TDR_EDWU1	0x00000400	/* Enable data BP upper word	*/
+#define MCFDEBUG_TDR_EDWU2	0x04000000
+#define MCFDEBUG_TDR_EDLL1	0x00000200	/* Enable data BP low low byte	*/
+#define MCFDEBUG_TDR_EDLL2	0x02000000
+#define MCFDEBUG_TDR_EDLM1	0x00000100	/* Enable data BP low mid byte	*/
+#define MCFDEBUG_TDR_EDLM2	0x01000000
+#define MCFDEBUG_TDR_EDUM1	0x00000080	/* Enable data BP up mid byte	*/
+#define MCFDEBUG_TDR_EDUM2	0x00800000
+#define MCFDEBUG_TDR_EDUU1	0x00000040	/* Enable data BP up up byte	*/
+#define MCFDEBUG_TDR_EDUU2	0x00400000
+#define MCFDEBUG_TDR_DI1	0x00000020	/* Data BP invert		*/
+#define MCFDEBUG_TDR_DI2	0x00200000
+#define MCFDEBUG_TDR_EAI1	0x00000010	/* Enable address BP inverted	*/
+#define MCFDEBUG_TDR_EAI2	0x00100000
+#define MCFDEBUG_TDR_EAR1	0x00000008	/* Enable address BP range	*/
+#define MCFDEBUG_TDR_EAR2	0x00080000
+#define MCFDEBUG_TDR_EAL1	0x00000004	/* Enable address BP low	*/
+#define MCFDEBUG_TDR_EAL2	0x00040000
+#define MCFDEBUG_TDR_EPC1	0x00000002	/* Enable PC BP			*/
+#define MCFDEBUG_TDR_EPC2	0x00020000
+#define MCFDEBUG_TDR_PCI1	0x00000001	/* PC BP invert			*/
+#define MCFDEBUG_TDR_PCI2	0x00010000
+
+/* Constants for the address attribute trigger register */
+#define MCFDEBUG_AAR_RESET	0x00000005
+/* Fields not yet implemented */
+
+/* And some definitions for the writable sections of the CSR */
+#define MCFDEBUG_CSR_RESET	0x00100000
+#define MCFDEBUG_CSR_PSTCLK	0x00020000	/* PSTCLK disable		*/
+#define MCFDEBUG_CSR_IPW	0x00010000	/* Inhibit processor writes	*/
+#define MCFDEBUG_CSR_MAP	0x00008000	/* Processor refs in emul mode	*/
+#define MCFDEBUG_CSR_TRC	0x00004000	/* Emul mode on trace exception	*/
+#define MCFDEBUG_CSR_EMU	0x00002000	/* Force emulation mode		*/
+#define MCFDEBUG_CSR_DDC_READ	0x00000800	/* Debug data control		*/
+#define MCFDEBUG_CSR_DDC_WRITE	0x00001000
+#define MCFDEBUG_CSR_UHE	0x00000400	/* User mode halt enable	*/
+#define MCFDEBUG_CSR_BTB0	0x00000000	/* Branch target 0 bytes	*/
+#define MCFDEBUG_CSR_BTB2	0x00000100	/* Branch target 2 bytes	*/
+#define MCFDEBUG_CSR_BTB3	0x00000200	/* Branch target 3 bytes	*/
+#define MCFDEBUG_CSR_BTB4	0x00000300	/* Branch target 4 bytes	*/
+#define MCFDEBUG_CSR_NPL	0x00000040	/* Non-pipelined mode		*/
+#define MCFDEBUG_CSR_SSM	0x00000010	/* Single step mode		*/
+
+/* Constants for the BDM address attribute register */
+#define MCFDEBUG_BAAR_RESET	0x00000005
+/* Fields not yet implemented */
+
+
+/* This routine wrappers up the wdebug asm instruction so that the register
+ * and value can be relatively easily specified.  The biggest hassle here is
+ * that the debug module instructions (2 longs) must be long word aligned and
+ * some pointer fiddling is performed to ensure this.
+ */
+static inline void wdebug(int reg, unsigned long data) {
+	unsigned short dbg_spc[6];
+	unsigned short *dbg;
+
+	// Force alignment to long word boundary
+	dbg = (unsigned short *)((((unsigned long)dbg_spc) + 3) & 0xfffffffc);
+
+	// Build up the debug instruction
+	dbg[0] = 0x2c80 | (reg & 0xf);
+	dbg[1] = (data >> 16) & 0xffff;
+	dbg[2] = data & 0xffff;
+	dbg[3] = 0;
+
+	// Perform the wdebug instruction
+#if 0
+	// This strain is for gas which doesn't have the wdebug instructions defined
+	asm(	"move.l	%0, %%a0\n\t"
+		".word	0xfbd0\n\t"
+		".word	0x0003\n\t"
+	    :: "g" (dbg) : "a0");
+#else
+	// And this is for when it does
+	asm(	"wdebug	(%0)" :: "a" (dbg));
+#endif
+}
+
+#endif