zy1000: revc FPGA now works

remove kludge code.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>

src/jtag/zy1000/jtag_minidriver.h

@@ -32,33 +32,9 @@ int  diag_printf(const char *fmt, ...);
 #define ZY1000_PEEK(a, b) HAL_READ_UINT32(a, b); diag_printf("peek 0x%08x = 0x%08x\n", a, b)
 #else
 #define ZY1000_PEEK(a, b) HAL_READ_UINT32(a, b)
-
-#ifdef CYGPKG_HAL_NIOS2
-#define ZY1000_POKE(a, b) \
-		 {/* This will flush the bridge FIFO. Overflowed bridge FIFO fails. We must \
-		 flush every "often". No precise system has been found, but 4 seems solid. \
-		  This code goes away once the FPGA has been fixed. */ \
-\
-CYG_INTERRUPT_STATE _old_; \
-HAL_DISABLE_INTERRUPTS(_old_); \
-HAL_WRITE_UINT32(a, b);\
- static int overflow_counter = 0; \
-   if (++overflow_counter >= 1) \
-   { \
-	   /* clear FIFO */ \
-	   cyg_uint32 empty; ZY1000_PEEK(ZY1000_JTAG_BASE + 0x10, empty); \
-	   overflow_counter = 0; \
-   } \
-   /* NB! interrupts must be restored *after* read */ \
-   HAL_RESTORE_INTERRUPTS(_old_); \
-}\
-
-#else
 #define ZY1000_POKE(a, b) HAL_WRITE_UINT32(a, b)
 #endif
 
-#endif
-
 // FIFO empty?
 static __inline__ void waitIdle(void)
 {

src/jtag/zy1000/zy1000.c

@@ -93,8 +93,8 @@ static bool readPowerDropout(void)
 {
 	cyg_uint32 state;
 	// sample and clear power dropout
-	HAL_WRITE_UINT32(ZY1000_JTAG_BASE + 0x10, 0x80);
-	HAL_READ_UINT32(ZY1000_JTAG_BASE + 0x10, state);
+	ZY1000_POKE(ZY1000_JTAG_BASE + 0x10, 0x80);
+	ZY1000_PEEK(ZY1000_JTAG_BASE + 0x10, state);
 	bool powerDropout;
 	powerDropout = (state & 0x80) != 0;
 	return powerDropout;
@@ -105,8 +105,8 @@ static bool readSRST(void)
 {
 	cyg_uint32 state;
 	// sample and clear SRST sensing
-	HAL_WRITE_UINT32(ZY1000_JTAG_BASE + 0x10, 0x00000040);
-	HAL_READ_UINT32(ZY1000_JTAG_BASE + 0x10, state);
+	ZY1000_POKE(ZY1000_JTAG_BASE + 0x10, 0x00000040);
+	ZY1000_PEEK(ZY1000_JTAG_BASE + 0x10, state);
 	bool srstAsserted;
 	srstAsserted = (state & 0x40) != 0;
 	return srstAsserted;
@@ -218,10 +218,10 @@ static void setPower(bool power)
 	savePower = power;
 	if (power)
 	{
-		HAL_WRITE_UINT32(ZY1000_JTAG_BASE + 0x14, 0x8);
+		ZY1000_POKE(ZY1000_JTAG_BASE + 0x14, 0x8);
 	} else
 	{
-		HAL_WRITE_UINT32(ZY1000_JTAG_BASE + 0x10, 0x8);
+		ZY1000_POKE(ZY1000_JTAG_BASE + 0x10, 0x8);
 	}
 }