Blackfin arch: setup aliases for some core Core A MMRs

setup aliases for some core Core A MMRs to ease porting in cases where common code would actually want Core A (or Core B MMR is reserved) Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
git-mirror · Jul 24, 2007 · 315a8e3 · 315a8e3
1 parent f695baf
commit 315a8e3
Show file tree

Hide file tree

Showing 3 changed files with 15 additions and 5 deletions.
diff --git a/arch/blackfin/mach-bf561/head.S b/arch/blackfin/mach-bf561/head.S
@@ -440,15 +440,15 @@ ENTRY(_bfin_reset)
 	SSYNC;
 
 	/* make sure SYSCR is set to use BMODE */
-	P0.h = hi(SICA_SYSCR);
-	P0.l = lo(SICA_SYSCR);
-	R0.l = 0x20;
+	P0.h = hi(SYSCR);
+	P0.l = lo(SYSCR);
+	R0.l = 0x20;		/* on BF561, disable core b */
 	W[P0] = R0.l;
 	SSYNC;
 
 	/* issue a system soft reset */
-	P1.h = hi(SICA_SWRST);
-	P1.l = lo(SICA_SWRST);
+	P1.h = hi(SWRST);
+	P1.l = lo(SWRST);
 	R1.l = 0x0007;
 	W[P1] = R1;
 	SSYNC;

diff --git a/include/asm-blackfin/mach-bf561/cdefBF561.h b/include/asm-blackfin/mach-bf561/cdefBF561.h
@@ -81,6 +81,12 @@ static __inline__ void bfin_write_VR_CTL(unsigned int val)
 #define bfin_write_PLL_LOCKCNT(val)          bfin_write16(PLL_LOCKCNT,val)
 #define bfin_read_CHIPID()                   bfin_read32(CHIPID)
 
+/* For MMR's that are reserved on Core B, set up defines to better integrate with other ports */
+#define bfin_read_SWRST()                    bfin_read_SICA_SWRST()
+#define bfin_write_SWRST()                   bfin_write_SICA_SWRST()
+#define bfin_read_SYSCR()                    bfin_read_SICA_SYSCR()
+#define bfin_write_SYSCR()                   bfin_write_SICA_SYSCR()
+
 /* System Reset and Interrupt Controller registers for core A (0xFFC0 0100-0xFFC0 01FF) */
 #define bfin_read_SICA_SWRST()               bfin_read16(SICA_SWRST)
 #define bfin_write_SICA_SWRST(val)           bfin_write16(SICA_SWRST,val)

diff --git a/include/asm-blackfin/mach-bf561/defBF561.h b/include/asm-blackfin/mach-bf561/defBF561.h
@@ -52,6 +52,10 @@
 #define PLL_LOCKCNT            0xFFC00010	/* PLL Lock Count register (16-bit) */
 #define CHIPID                 0xFFC00014       /* Chip ID Register */
 
+/* For MMR's that are reserved on Core B, set up defines to better integrate with other ports */
+#define SWRST                   SICA_SWRST
+#define SYSCR                   SICA_SYSCR
+
 /* System Reset and Interrupt Controller registers for core A (0xFFC0 0100-0xFFC0 01FF) */
 #define SICA_SWRST              0xFFC00100	/* Software Reset register */
 #define SICA_SYSCR              0xFFC00104	/* System Reset Configuration register */