FPGA: add support for downloading Lattice bitstream
The patch adds support to load a Lattice's bitstream
image (called VME file) into a Lattice FPGA. The code
containing the state machine delivered as part of
Lattice's ispVMtools is integrated.
The FPGA is programmed using the JTAG interface. The
board maintainer must provide accessors to drive the
JTAG signals TCK, TMS, TDI and to get the value of the
input signal TDO.
Signed-off-by: Stefano Babic <sbabic@denx.de>
diff --git a/drivers/fpga/fpga.c b/drivers/fpga/fpga.c
index 5659517..e41e728 100644
--- a/drivers/fpga/fpga.c
+++ b/drivers/fpga/fpga.c
@@ -28,6 +28,7 @@
#include <common.h> /* core U-Boot definitions */
#include <xilinx.h> /* xilinx specific definitions */
#include <altera.h> /* altera specific definitions */
+#include <lattice.h>
#if 0
#define FPGA_DEBUG /* define FPGA_DEBUG to get debug messages */
@@ -139,6 +140,10 @@
fpga_no_sup( (char *)__FUNCTION__, "Altera devices" );
#endif
break;
+ case fpga_lattice:
+ printf("Lattice Device\nDescriptor @ 0x%p\n", desc);
+ ret_val = lattice_info(desc->devdesc);
+ break;
default:
printf( "%s: Invalid or unsupported device type %d\n",
__FUNCTION__, desc->devtype );
@@ -224,6 +229,9 @@
fpga_no_sup( (char *)__FUNCTION__, "Altera devices" );
#endif
break;
+ case fpga_lattice:
+ ret_val = lattice_load(desc->devdesc, buf, bsize);
+ break;
default:
printf( "%s: Invalid or unsupported device type %d\n",
__FUNCTION__, desc->devtype );
@@ -257,6 +265,9 @@
fpga_no_sup( (char *)__FUNCTION__, "Altera devices" );
#endif
break;
+ case fpga_lattice:
+ ret_val = lattice_dump(desc->devdesc, buf, bsize);
+ break;
default:
printf( "%s: Invalid or unsupported device type %d\n",
__FUNCTION__, desc->devtype );