In bitstream decoding you can directly check device which you want to load and in fpga.c are fpga_validate and fpga_dev_info functions which should be used for it.
Signed-off-by: Michal Simek <michal.si...@xilinx.com>
---
Changes in v3:
- Setup fpga_loadbitstream as weak function
Changes in v2: None
common/cmd_fpga.c | 94 ---------------------------------------------------
drivers/fpga/fpga.c | 9 +++++
drivers/fpga/xilinx.c | 86 ++++++++++++++++++++++++++++++++++++++++++++++
include/fpga.h | 1 +
4 files changed, 96 insertions(+), 94 deletions(-)
diff --git a/common/cmd_fpga.c b/common/cmd_fpga.c
index f3579bb..aa14ceb 100644
--- a/common/cmd_fpga.c
+++ b/common/cmd_fpga.c
@@ -44,100 +44,6 @@ static int fpga_get_op(char *opstr);
#define FPGA_DUMP 3
#define FPGA_LOADMK 4
-/* Convert bitstream data and load into the fpga */
-int fpga_loadbitstream(unsigned long dev, char *fpgadata, size_t size)
-{
-#if defined(CONFIG_FPGA_XILINX)
- unsigned int length;
- unsigned int swapsize;
- char buffer[80];
- unsigned char *dataptr;
- unsigned int i;
- int rc;
-
- dataptr = (unsigned char *)fpgadata;
-
- /* skip the first bytes of the bitsteam, their meaning is unknown */
- length = (*dataptr << 8) + *(dataptr + 1);
- dataptr += 2;
- dataptr += length;
-
- /* get design name (identifier, length, string) */
- length = (*dataptr << 8) + *(dataptr + 1);
- dataptr += 2;
- if (*dataptr++ != 0x61) {
- debug("%s: Design name id not recognized in bitstream\n",
- __func__);
- return FPGA_FAIL;
- }
-
- length = (*dataptr << 8) + *(dataptr + 1);
- dataptr += 2;
- for (i = 0; i < length; i++)
- buffer[i] = *dataptr++;
-
- printf(" design filename = \"%s\"\n", buffer);
-
- /* get part number (identifier, length, string) */
- if (*dataptr++ != 0x62) {
- printf("%s: Part number id not recognized in bitstream\n",
- __func__);
- return FPGA_FAIL;
- }
-
- length = (*dataptr << 8) + *(dataptr + 1);
- dataptr += 2;
- for (i = 0; i < length; i++)
- buffer[i] = *dataptr++;
- printf(" part number = \"%s\"\n", buffer);
-
- /* get date (identifier, length, string) */
- if (*dataptr++ != 0x63) {
- printf("%s: Date identifier not recognized in bitstream\n",
- __func__);
- return FPGA_FAIL;
- }
-
- length = (*dataptr << 8) + *(dataptr+1);
- dataptr += 2;
- for (i = 0; i < length; i++)
- buffer[i] = *dataptr++;
- printf(" date = \"%s\"\n", buffer);
-
- /* get time (identifier, length, string) */
- if (*dataptr++ != 0x64) {
- printf("%s: Time identifier not recognized in bitstream\n",
- __func__);
- return FPGA_FAIL;
- }
-
- length = (*dataptr << 8) + *(dataptr+1);
- dataptr += 2;
- for (i = 0; i < length; i++)
- buffer[i] = *dataptr++;
- printf(" time = \"%s\"\n", buffer);
-
- /* get fpga data length (identifier, length) */
- if (*dataptr++ != 0x65) {
- printf("%s: Data length id not recognized in bitstream\n",
- __func__);
- return FPGA_FAIL;
- }
- swapsize = ((unsigned int) *dataptr << 24) +
- ((unsigned int) *(dataptr + 1) << 16) +
- ((unsigned int) *(dataptr + 2) << 8) +
- ((unsigned int) *(dataptr + 3));
- dataptr += 4;
- printf(" bytes in bitstream = %d\n", swapsize);
-
- rc = fpga_load(dev, dataptr, swapsize);
- return rc;
-#else
- printf("Bitstream support only for Xilinx devices\n");
- return FPGA_FAIL;
-#endif
-}
-
/* ------------------------------------------------------------------------- */
/* command form:
* fpga <op> <device number> <data addr> <datasize>
diff --git a/drivers/fpga/fpga.c b/drivers/fpga/fpga.c
index 43bdf4f..f0253bf 100644
--- a/drivers/fpga/fpga.c
+++ b/drivers/fpga/fpga.c
@@ -188,6 +188,15 @@ int fpga_add(fpga_type devtype, void *desc)
}
/*
+ * Convert bitstream data and load into the fpga
+ */
+int __weak fpga_loadbitstream(unsigned long dev, char *fpgadata, size_t size)
+{
+ printf("Bitstream support not implemented for this FPGA device\n");
+ return FPGA_FAIL;
+}
+
+/*
* Generic multiplexing code
*/
int fpga_load(int devnum, const void *buf, size_t bsize)
diff --git a/drivers/fpga/xilinx.c b/drivers/fpga/xilinx.c
index 32787b2..7d0342a 100644
--- a/drivers/fpga/xilinx.c
+++ b/drivers/fpga/xilinx.c
@@ -48,6 +48,92 @@ static int xilinx_validate (Xilinx_desc * desc, char *fn);
/* ------------------------------------------------------------------------- */
+int fpga_loadbitstream(unsigned long dev, char *fpgadata, size_t size)
+{
+ unsigned int length;
+ unsigned int swapsize;
+ char buffer[80];
+ unsigned char *dataptr;
+ unsigned int i;
+
+ dataptr = (unsigned char *)fpgadata;
+
+ /* skip the first bytes of the bitsteam, their meaning is unknown */
+ length = (*dataptr << 8) + *(dataptr + 1);
+ dataptr += 2;
+ dataptr += length;
+
+ /* get design name (identifier, length, string) */
+ length = (*dataptr << 8) + *(dataptr + 1);
+ dataptr += 2;
+ if (*dataptr++ != 0x61) {
+ debug("%s: Design name id not recognized in bitstream\n",
+ __func__);
+ return FPGA_FAIL;
+ }
+
+ length = (*dataptr << 8) + *(dataptr + 1);
+ dataptr += 2;
+ for (i = 0; i < length; i++)
+ buffer[i] = *dataptr++;
+
+ printf(" design filename = \"%s\"\n", buffer);
+
+ /* get part number (identifier, length, string) */
+ if (*dataptr++ != 0x62) {
+ printf("%s: Part number id not recognized in bitstream\n",
+ __func__);
+ return FPGA_FAIL;
+ }
+
+ length = (*dataptr << 8) + *(dataptr + 1);
+ dataptr += 2;
+ for (i = 0; i < length; i++)
+ buffer[i] = *dataptr++;
+ printf(" part number = \"%s\"\n", buffer);
+
+ /* get date (identifier, length, string) */
+ if (*dataptr++ != 0x63) {
+ printf("%s: Date identifier not recognized in bitstream\n",
+ __func__);
+ return FPGA_FAIL;
+ }
+
+ length = (*dataptr << 8) + *(dataptr+1);
+ dataptr += 2;
+ for (i = 0; i < length; i++)
+ buffer[i] = *dataptr++;
+ printf(" date = \"%s\"\n", buffer);
+
+ /* get time (identifier, length, string) */
+ if (*dataptr++ != 0x64) {
+ printf("%s: Time identifier not recognized in bitstream\n",
+ __func__);
+ return FPGA_FAIL;
+ }
+
+ length = (*dataptr << 8) + *(dataptr+1);
+ dataptr += 2;
+ for (i = 0; i < length; i++)
+ buffer[i] = *dataptr++;
+ printf(" time = \"%s\"\n", buffer);
+
+ /* get fpga data length (identifier, length) */
+ if (*dataptr++ != 0x65) {
+ printf("%s: Data length id not recognized in bitstream\n",
+ __func__);
+ return FPGA_FAIL;
+ }
+ swapsize = ((unsigned int) *dataptr << 24) +
+ ((unsigned int) *(dataptr + 1) << 16) +
+ ((unsigned int) *(dataptr + 2) << 8) +
+ ((unsigned int) *(dataptr + 3));
+ dataptr += 4;
+ printf(" bytes in bitstream = %d\n", swapsize);
+
+ return fpga_load(dev, dataptr, swapsize);
+}
+
int xilinx_load(Xilinx_desc *desc, const void *buf, size_t bsize)
{
int ret_val = FPGA_FAIL; /* assume a failure */
diff --git a/include/fpga.h b/include/fpga.h
index 30a4e6a..0d01e04 100644
--- a/include/fpga.h
+++ b/include/fpga.h
@@ -68,6 +68,7 @@ extern void fpga_init(void);
extern int fpga_add(fpga_type devtype, void *desc);
extern int fpga_count(void);
extern int fpga_load(int devnum, const void *buf, size_t bsize);
+extern int fpga_loadbitstream(unsigned long dev, char *fpgadata, size_t size);
extern int fpga_dump(int devnum, const void *buf, size_t bsize);
extern int fpga_info(int devnum);
--
1.8.2.1
pgp2hy953E8S7.pgp
Description: PGP signature
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