Blackfin arch: update ANOMALY handling

update lists for 533, 537, and add SSYNC workaround into assembly files. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
git-mirror · Jun 21, 2007 · 4bf3f3c · 4bf3f3c
1 parent 0864a4e
commit 4bf3f3c
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Showing 9 changed files with 197 additions and 25 deletions.
diff --git a/arch/blackfin/lib/memcmp.S b/arch/blackfin/lib/memcmp.S
@@ -61,7 +61,12 @@ ENTRY(_memcmp)
 
 	LSETUP (.Lquad_loop_s, .Lquad_loop_e) LC0=P1;
 .Lquad_loop_s:
+#ifdef ANOMALY_05000202
+	R0 = [P0++];
+	R1 = [I0++];
+#else
 	MNOP || R0 = [P0++] || R1 = [I0++];
+#endif
 	CC = R0 == R1;
 	IF !CC JUMP .Lquad_different;
 .Lquad_loop_e:

diff --git a/arch/blackfin/lib/memcpy.S b/arch/blackfin/lib/memcpy.S
@@ -94,13 +94,20 @@ ENTRY(_memcpy)
 .Lmore_than_seven:
 	/* There's at least eight bytes to copy. */
 	P2 += -1;	/* because we unroll one iteration */
-	LSETUP(.Lword_loop, .Lword_loop) LC0=P2;
+	LSETUP(.Lword_loops, .Lword_loope) LC0=P2;
 	R0 = R1;
 	I1 = P1;
 	R3 = [I1++];
-.Lword_loop:
+#ifdef ANOMALY_05000202
+.Lword_loops:
+	[P0++] = R3;
+.Lword_loope:
+	R3 = [I1++];
+#else
+.Lword_loops:
+.Lword_loope:
 	MNOP || [P0++] = R3 || R3 = [I1++];
-
+#endif
 	[P0++] = R3;
 	/* Any remaining bytes to copy? */
 	R3 = 0x3;

diff --git a/arch/blackfin/lib/memmove.S b/arch/blackfin/lib/memmove.S
@@ -69,8 +69,17 @@ ENTRY(_memmove)
 	P2 = R2;                  /* set remainder */
 	R1 = [I0++];
 
-	LSETUP (.Lquad_loop, .Lquad_loop) LC0=P1;
-.Lquad_loop: MNOP || [P0++] = R1 || R1 = [I0++];
+	LSETUP (.Lquad_loops, .Lquad_loope) LC0=P1;
+#ifdef ANOMALY_05000202
+.Lquad_loops:
+	[P0++] = R1;
+.Lquad_loope:
+	R1 = [I0++];
+#else
+.Lquad_loops:
+.Lquad_loope:
+	 MNOP || [P0++] = R1 || R1 = [I0++];
+#endif
 	[P0++] = R1;
 
 	CC = P2 == 0;             /* any remaining bytes? */
@@ -93,6 +102,10 @@ ENTRY(_memmove)
 	R1 = B[P3--] (Z);
 	CC = P2 == 0;
 	IF CC JUMP .Lno_loop;
+#ifdef ANOMALY_05000245
+	NOP;
+	NOP;
+#endif
 	LSETUP (.Lol_s, .Lol_e) LC0 = P2;
 .Lol_s:    B[P0--] = R1;
 .Lol_e:    R1 = B[P3--] (Z);

diff --git a/arch/blackfin/mach-common/cache.S b/arch/blackfin/mach-common/cache.S
@@ -123,14 +123,14 @@ ENTRY(_blackfin_icache_flush_range)
 	R2 = R0 & R2;
 	P0 = R2;
 	P1 = R1;
-	CSYNC;
+	CSYNC(R3);
 	IFLUSH [P0];
 1:
 	IFLUSH [P0++];
 	CC = P0 < P1 (iu);
 	IF CC JUMP 1b (bp);
 	IFLUSH [P0];
-	SSYNC;
+	SSYNC(R3);
 	RTS;
 ENDPROC(_blackfin_icache_flush_range)
 
@@ -148,7 +148,7 @@ ENTRY(_blackfin_icache_dcache_flush_range)
 	R2 = R0 & R2;
 	P0 = R2;
 	P1 = R1;
-	CSYNC;
+	CSYNC(R3);
 	IFLUSH [P0];
 1:
 	FLUSH [P0];
@@ -157,7 +157,7 @@ ENTRY(_blackfin_icache_dcache_flush_range)
 	IF CC JUMP 1b (bp);
 	IFLUSH [P0];
 	FLUSH [P0];
-	SSYNC;
+	SSYNC(R3);
 	RTS;
 ENDPROC(_blackfin_icache_dcache_flush_range)
 
@@ -174,7 +174,7 @@ ENTRY(_blackfin_dcache_invalidate_range)
 	R2 = R0 & R2;
 	P0 = R2;
 	P1 = R1;
-	CSYNC;
+	CSYNC(R3);
 	FLUSHINV[P0];
 1:
 	FLUSHINV[P0++];
@@ -186,7 +186,7 @@ ENTRY(_blackfin_dcache_invalidate_range)
 	 * so do one more.
 	 */
 	FLUSHINV[P0];
-	SSYNC;
+	SSYNC(R3);
 	RTS;
 ENDPROC(_blackfin_dcache_invalidate_range)
 
@@ -235,7 +235,7 @@ ENTRY(_blackfin_dcache_flush_range)
 	R2 = R0 & R2;
 	P0 = R2;
 	P1 = R1;
-	CSYNC;
+	CSYNC(R3);
 	FLUSH[P0];
 1:
 	FLUSH[P0++];
@@ -247,17 +247,17 @@ ENTRY(_blackfin_dcache_flush_range)
 	 * one more.
 	 */
 	FLUSH[P0];
-	SSYNC;
+	SSYNC(R3);
 	RTS;
 ENDPROC(_blackfin_dcache_flush_range)
 
 ENTRY(_blackfin_dflush_page)
 	P1 = 1 << (PAGE_SHIFT - L1_CACHE_SHIFT);
 	P0 = R0;
-	CSYNC;
+	CSYNC(R3);
 	FLUSH[P0];
 	LSETUP (.Lfl1, .Lfl1) LC0 = P1;
 .Lfl1:	FLUSH [P0++];
-	SSYNC;
+	SSYNC(R3);
 	RTS;
 ENDPROC(_blackfin_dflush_page)
diff --git a/arch/blackfin/mach-common/interrupt.S b/arch/blackfin/mach-common/interrupt.S
@@ -139,7 +139,7 @@ __common_int_entry:
 	fp = 0;
 #endif
 
-#ifdef	ANOMALY_05000283
+#if defined (ANOMALY_05000283) || defined (ANOMALY_05000315)
 	cc = r7 == r7;
 	p5.h = 0xffc0;
 	p5.l = 0x0014;

diff --git a/include/asm-blackfin/blackfin.h b/include/asm-blackfin/blackfin.h
@@ -39,7 +39,9 @@ static inline void SSYNC (void)
 #elif !defined(ANOMALY_05000312) && defined(ANOMALY_05000244)
 static inline void SSYNC (void)
 {
-	__builtin_bfin_ssync();
+	__asm__ __volatile__ ("nop; nop; nop;\n\t"
+			"ssync;\n\t"
+			::);
 }
 #elif !defined(ANOMALY_05000312) && !defined(ANOMALY_05000244)
 static inline void SSYNC (void)
@@ -71,7 +73,9 @@ static inline void CSYNC (void)
 #elif !defined(ANOMALY_05000312) && defined(ANOMALY_05000244)
 static inline void CSYNC (void)
 {
-	__builtin_bfin_csync();
+	__asm__ __volatile__ ("nop; nop; nop;\n\t"
+			"ssync;\n\t"
+			::);
 }
 #elif !defined(ANOMALY_05000312) && !defined(ANOMALY_05000244)
 static inline void CSYNC (void)
@@ -80,6 +84,31 @@ static inline void CSYNC (void)
 }
 #endif
 
+#else  /* __ASSEMBLY__ */
+
+/* SSYNC & CSYNC implementations for assembly files */
+
+#define ssync(x) SSYNC(x)
+#define csync(x) CSYNC(x)
+
+#if defined(ANOMALY_05000312) && defined(ANOMALY_05000244)
+#define SSYNC(scratch) cli scratch; nop; nop; SSYNC; sti scratch;
+#define CSYNC(scratch) cli scratch; nop; nop; CSYNC; sti scratch;
+
+#elif defined(ANOMALY_05000312) && !defined(ANOMALY_05000244)
+#define SSYNC(scratch) cli scratch; nop; nop; SSYNC; sti scratch;
+#define CSYNC(scratch) cli scratch; nop; nop; CSYNC; sti scratch;
+
+#elif !defined(ANOMALY_05000312) && defined(ANOMALY_05000244)
+#define SSYNC(scratch) nop; nop; nop; SSYNC;
+#define CSYNC(scratch) nop; nop; nop; CSYNC;
+
+#elif !defined(ANOMALY_05000312) && !defined(ANOMALY_05000244)
+#define SSYNC(scratch) SSYNC;
+#define CSYNC(scratch) CSYNC;
+
+#endif /* ANOMALY_05000312 & ANOMALY_05000244 handling */
+
 #endif /* __ASSEMBLY__ */
 
 #endif				/* _BLACKFIN_H_ */
diff --git a/include/asm-blackfin/mach-bf533/anomaly.h b/include/asm-blackfin/mach-bf533/anomaly.h
@@ -43,7 +43,8 @@
 #endif
 
 /* Issues that are common to 0.5, 0.4, and 0.3 silicon */
-#if  (defined(CONFIG_BF_REV_0_5) || defined(CONFIG_BF_REV_0_4) || defined(CONFIG_BF_REV_0_3))
+#if  (defined(CONFIG_BF_REV_0_5) || defined(CONFIG_BF_REV_0_4) \
+		|| defined(CONFIG_BF_REV_0_3))
 #define ANOMALY_05000074 /* A multi issue instruction with dsp32shiftimm in
                             slot1 and store of a P register in slot 2 is not
                             supported */
@@ -76,11 +77,16 @@
                             control */
 #define ANOMALY_05000283 /* A system MMR write is stalled indefinitely when
                             killed in a particular stage*/
+#define ANOMALY_05000311 /* Erroneous flag pin operations under specific
+			    sequences */
 #define ANOMALY_05000312 /* Errors when SSYNC, CSYNC, or loads to LT, LB and LC
 			    registers are interrupted */
-#define ANOMALY_05000311 /* Erroneous flag pin operations under specific sequences*/
-
-#endif
+#define ANOMALY_05000313 /* PPI Is Level-Sensitive on First Transfer  */
+#define ANOMALY_05000315 /* Killed System MMR Write Completes Erroneously On
+			  *  Next System MMR Access */
+#define ANOMALY_05000319 /* Internal Voltage Regulator Values of 1.05V, 1.10V
+			  *  and 1.15V Not Allowed for LQFP Packages */
+#endif /* Issues that are common to 0.5, 0.4, and 0.3 silicon */
 
 /* These issues only occur on 0.3 or 0.4 BF533 */
 #if (defined(CONFIG_BF_REV_0_4) || defined(CONFIG_BF_REV_0_3))
@@ -134,14 +140,14 @@
                             internal voltage regulator (VDDint) to increase. */
 #define ANOMALY_05000270 /* High I/O activity causes the output voltage of the
                             internal voltage regulator (VDDint) to decrease */
-#endif
+#endif /* issues only occur on 0.3 or 0.4 BF533 */
 
 /* These issues are only on 0.4 silicon */
 #if (defined(CONFIG_BF_REV_0_4))
 #define ANOMALY_05000234 /* Incorrect Revision Number in DSPID Register */
 #define ANOMALY_05000250 /* Incorrect Bit-Shift of Data Word in Multichannel
                             (TDM) */
-#endif
+#endif /* issues are only on 0.4 silicon */
 
 /* These issues are only on 0.3 silicon */
 #if defined(CONFIG_BF_REV_0_3)
@@ -170,6 +176,72 @@
 #define ANOMALY_05000233 /* PPI_FS3 is not driven in 2 or 3 internal Frame
                             Sync Transmit Mode */
 #define ANOMALY_05000271 /* Spontaneous reset of Internal Voltage Regulator */
+#endif /* only on 0.3 silicon */
+
+#if defined(CONFIG_BF_REV_0_2)
+#define ANOMALY_05000067 /* Watchpoints (Hardware Breakpoints) are not
+			  *  supported */
+#define ANOMALY_05000109 /* Reserved bits in SYSCFG register not set at
+			  *  power on */
+#define ANOMALY_05000116 /* Trace Buffers may record discontinuities into
+			  *  emulation mode and/or exception, NMI, reset
+			  *  handlers */
+#define ANOMALY_05000123 /* DTEST_COMMAND initiated memory access may be
+			  *  incorrect if data cache or DMA is active */
+#define ANOMALY_05000124 /* DMA Lock-up at CCLK to SCLK ratios of 4:1, 2:1,
+			  *  or 1:1 */
+#define ANOMALY_05000125 /* Erroneous exception when enabling cache */
+#define ANOMALY_05000126 /* SPI clock polarity and phase bits incorrect
+			  *  during booting */
+#define ANOMALY_05000137 /* DMEM_CONTROL is not set on Reset */
+#define ANOMALY_05000138 /* SPI boot will not complete if there is a zero fill
+			  * block in the loader file */
+#define ANOMALY_05000140 /* Allowing the SPORT RX FIFO to fill will cause an
+			  *  overflow */
+#define ANOMALY_05000141 /* An Infinite Stall occurs with a particular sequence
+			  *  of consecutive dual dag events */
+#define ANOMALY_05000142 /* Interrupts may be lost when a programmable input
+			  *  flag is configured to be edge sensitive */
+#define ANOMALY_05000143 /* A read from external memory may return a wrong
+			  *  value with data cache enabled */
+#define ANOMALY_05000144 /* DMA and TESTSET conflict when both are accessing
+			  *  external memory */
+#define ANOMALY_05000145 /* In PWM_OUT mode, you must enable the PPI block to
+			  *  generate a waveform from PPI_CLK */
+#define ANOMALY_05000146 /* MDMA may lose the first few words of a descriptor
+			  *  chain */
+#define ANOMALY_05000147 /* The source MDMA descriptor may stop with a DMA
+			  *  Error */
+#define ANOMALY_05000148 /* When booting from a 16-bit asynchronous memory
+			  *  device, the upper 8-bits of each word must be
+			  *  0x00 */
+#define ANOMALY_05000153 /* Frame Delay in SPORT Multichannel Mode */
+#define ANOMALY_05000154 /* SPORT TFS signal is active in Multi-channel mode
+			  *  outside of valid channels */
+#define ANOMALY_05000155 /* Timer1 can not be used for PWMOUT mode when a
+			  *  certain PPI mode is in use */
+#define ANOMALY_05000157 /* A killed 32-bit System MMR write will lead to
+			  *  the next system MMR access thinking it should be
+			  *  32-bit. */
+#define ANOMALY_05000163 /* SPORT transmit data is not gated by external frame
+			  *  sync in certain conditions */
+#define ANOMALY_05000168 /* SDRAM auto-refresh and subsequent Power Ups */
+#define ANOMALY_05000169 /* DATA CPLB page miss can result in lost
+			  *  write-through cache data writes */
+#define ANOMALY_05000173 /* DMA vs Core accesses to external memory */
+#define ANOMALY_05000174 /* Cache Fill Buffer Data lost */
+#define ANOMALY_05000175 /* Overlapping Sequencer and Memory Stalls */
+#define ANOMALY_05000176 /* Multiplication of (-1) by (-1) followed by an
+			  *  accumulator saturation */
+#define ANOMALY_05000181 /* Disabling the PPI resets the PPI configuration
+			  *  registers */
+#define ANOMALY_05000185 /* PPI TX Mode with 2 External Frame Syncs */
+#define ANOMALY_05000191 /* PPI does not invert the Driving PPICLK edge in
+			  *  Transmit Modes */
+#define ANOMALY_05000192 /* In PPI Transmit Modes with External Frame Syncs
+			  *  POLC */
+#define ANOMALY_05000206 /* Internal Voltage Regulator may not start up */
+
 #endif
 
 #endif /*  _MACH_ANOMALY_H_ */
diff --git a/include/asm-blackfin/mach-bf537/anomaly.h b/include/asm-blackfin/mach-bf537/anomaly.h
@@ -73,8 +73,13 @@
                             control */
 #define ANOMALY_05000283 /* A system MMR write is stalled indefinitely when
                             killed in a particular stage*/
+#define ANOMALY_05000310 /* False hardware errors caused by fetches at the
+			  *  boundary of reserved memory */
 #define ANOMALY_05000312 /* Errors when SSYNC, CSYNC, or loads to LT, LB and LC
 			    registers are interrupted */
+#define ANOMALY_05000313 /* PPI is level sensitive on first transfer */
+#define ANOMALY_05000322 /* EMAC RMII mode at 10-Base-T speed: RX frames not
+			  *  received properly */
 #endif
 
 #if defined(CONFIG_BF_REV_0_2)
@@ -114,7 +119,21 @@
                             DMA system instability */
 #define ANOMALY_05000280 /* SPI Master boot mode does not work well with
                             Atmel Dataflash devices */
-
+#define ANOMALY_05000281 /* False Hardware Error Exception when ISR context
+			  *  is not restored */
+#define ANOMALY_05000282 /* Memory DMA corruption with 32-bit data and traffic
+			  *  control */
+#define ANOMALY_05000283 /* System MMR Write Is Stalled Indefinitely When
+			  *  Killed in a Particular Stage */
+#define ANOMALY_05000285 /* New Feature: EMAC TX DMA Word Alignment
+			  *  (Not Available On Older Silicon) */
+#define ANOMALY_05000288 /* SPORTs may receive bad data if FIFOs fill up */
+#define ANOMALY_05000315 /* Killed System MMR Write Completes Erroneously
+			  *  On Next System MMR Access */
+#define ANOMALY_05000316 /* EMAC RMII mode: collisions occur in Full Duplex
+			  *  mode */
+#define ANOMALY_05000321 /* EMAC RMII mode: TX frames in half duplex fail with
+			  *  status No Carrier */
 #endif  /* CONFIG_BF_REV_0_2 */
 
 #endif /* _MACH_ANOMALY_H_ */