diff options
Diffstat (limited to 'common/spartan2.c')
| -rw-r--r-- | common/spartan2.c | 72 |
1 files changed, 36 insertions, 36 deletions
diff --git a/common/spartan2.c b/common/spartan2.c index dcda0c4..279a426 100644 --- a/common/spartan2.c +++ b/common/spartan2.c @@ -438,11 +438,11 @@ static int Spartan2_sp_reloc (Xilinx_desc * desc, ulong reloc_offset) static int Spartan2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize) { - int ret_val = FPGA_FAIL; /* assume the worst */ + int ret_val = FPGA_FAIL; /* assume the worst */ Xilinx_Spartan2_Slave_Serial_fns *fn = desc->iface_fns; - int i; - char val; - + int i; + char val; + PRINTF ("%s: start with interface functions @ 0x%p\n", __FUNCTION__, fn); @@ -460,8 +460,8 @@ static int Spartan2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize) "clk:\t0x%p\n" "wr:\t0x%p\n" "done:\t0x%p\n\n", - __FUNCTION__, &fn, fn, fn->pgm, fn->init, - fn->clk, fn->wr, fn->done); + __FUNCTION__, &fn, fn, fn->pgm, fn->init, + fn->clk, fn->wr, fn->done); #ifdef CFG_FPGA_PROG_FEEDBACK printf ("Loading FPGA Device %d...\n", cookie); #endif @@ -476,7 +476,7 @@ static int Spartan2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize) /* Establish the initial state */ (*fn->pgm) (TRUE, TRUE, cookie); /* Assert the program, commit */ - /* Wait for INIT state (init low) */ + /* Wait for INIT state (init low) */ ts = get_timer (0); /* get current time */ do { CONFIG_FPGA_DELAY (); @@ -485,7 +485,7 @@ static int Spartan2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize) return FPGA_FAIL; } } while (!(*fn->init) (cookie)); - + /* Get ready for the burn */ CONFIG_FPGA_DELAY (); (*fn->pgm) (FALSE, TRUE, cookie); /* Deassert the program, commit */ @@ -502,29 +502,29 @@ static int Spartan2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize) /* Load the data */ while (bytecount < bsize) { - - /* Xilinx detects an error if INIT goes low (active) - while DONE is low (inactive) */ - if ((*fn->done) (cookie) == 0 && (*fn->init) (cookie)) { - puts ("** CRC error during FPGA load.\n"); - return (FPGA_FAIL); - } - val = data [bytecount ++]; - i = 8; - do { - /* Deassert the clock */ - (*fn->clk) (FALSE, TRUE, cookie); - CONFIG_FPGA_DELAY (); - /* Write data */ - (*fn->wr) ((val < 0), TRUE, cookie); - CONFIG_FPGA_DELAY (); - /* Assert the clock */ - (*fn->clk) (TRUE, TRUE, cookie); - CONFIG_FPGA_DELAY (); - val <<= 1; - i --; - } while (i > 0); - + + /* Xilinx detects an error if INIT goes low (active) + while DONE is low (inactive) */ + if ((*fn->done) (cookie) == 0 && (*fn->init) (cookie)) { + puts ("** CRC error during FPGA load.\n"); + return (FPGA_FAIL); + } + val = data [bytecount ++]; + i = 8; + do { + /* Deassert the clock */ + (*fn->clk) (FALSE, TRUE, cookie); + CONFIG_FPGA_DELAY (); + /* Write data */ + (*fn->wr) ((val < 0), TRUE, cookie); + CONFIG_FPGA_DELAY (); + /* Assert the clock */ + (*fn->clk) (TRUE, TRUE, cookie); + CONFIG_FPGA_DELAY (); + val <<= 1; + i --; + } while (i > 0); + #ifdef CFG_FPGA_PROG_FEEDBACK if (bytecount % (bsize / 40) == 0) putc ('.'); /* let them know we are alive */ @@ -540,7 +540,7 @@ static int Spartan2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize) /* now check for done signal */ ts = get_timer (0); /* get current time */ ret_val = FPGA_SUCCESS; - (*fn->wr) (TRUE, TRUE, cookie); + (*fn->wr) (TRUE, TRUE, cookie); while (! (*fn->done) (cookie)) { /* XXX - we should have a check in here somewhere to @@ -551,8 +551,8 @@ static int Spartan2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize) CONFIG_FPGA_DELAY (); (*fn->clk) (TRUE, TRUE, cookie); /* Assert the clock pin */ - putc ('*'); - + putc ('*'); + if (get_timer (ts) > CFG_FPGA_WAIT) { /* check the time */ puts ("** Timeout waiting for DONE to clear.\n"); ret_val = FPGA_FAIL; @@ -579,8 +579,8 @@ static int Spartan2_ss_load (Xilinx_desc * desc, void *buf, size_t bsize) static int Spartan2_ss_dump (Xilinx_desc * desc, void *buf, size_t bsize) { - /* Readback is only available through the Slave Parallel and */ - /* boundary-scan interfaces. */ + /* Readback is only available through the Slave Parallel and */ + /* boundary-scan interfaces. */ printf ("%s: Slave Serial Dumping is unavailable\n", __FUNCTION__); return FPGA_FAIL; |