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fpga: Check device name against bitstream name

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Ensure that wrong bitstream won't be loaded
to current device.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@ti.com>
This commit is contained in:
Michal Simek 2013-04-26 15:04:48 +02:00
parent d5dae85f23
commit 6631db4773
5 changed files with 32 additions and 6 deletions
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4
drivers/fpga/fpga.c
View File

@ -72,8 +72,8 @@ static const fpga_desc *const fpga_get_desc(int devnum)
* fpga_validate
* generic parameter checking code
*/
static const fpga_desc *const fpga_validate(int devnum, const void *buf,
size_t bsize, char *fn)
const fpga_desc *const fpga_validate(int devnum, const void *buf,
size_t bsize, char *fn)
{
const fpga_desc *desc = fpga_get_desc(devnum);

23
drivers/fpga/xilinx.c
View File

@ -30,6 +30,7 @@
*/
#include <common.h>
#include <fpga.h>
#include <virtex2.h>
#include <spartan2.h>
#include <spartan3.h>
@ -58,8 +59,14 @@ int fpga_loadbitstream(int devnum, char *fpgadata, size_t size)
char buffer[80];
unsigned char *dataptr;
unsigned int i;
const fpga_desc *desc;
Xilinx_desc *xdesc;
dataptr = (unsigned char *)fpgadata;
/* Find out fpga_description */
desc = fpga_validate(devnum, dataptr, 0, (char *)__func__);
/* Assign xilinx device description */
xdesc = desc->devdesc;
/* skip the first bytes of the bitsteam, their meaning is unknown */
length = (*dataptr << 8) + *(dataptr + 1);
@ -93,6 +100,20 @@ int fpga_loadbitstream(int devnum, char *fpgadata, size_t size)
dataptr += 2;
for (i = 0; i < length; i++)
buffer[i] = *dataptr++;
if (xdesc->name) {
i = strncmp(buffer, xdesc->name, strlen(xdesc->name));
if (i) {
printf("%s: Wrong bitstream ID for this device\n",
__func__);
printf("%s: Bitstream ID %s, current device ID %d/%s\n",
__func__, buffer, devnum, xdesc->name);
return FPGA_FAIL;
}
} else {
printf("%s: Please fill correct device ID to Xilinx_desc\n",
__func__);
}
printf(" part number = \"%s\"\n", buffer);
/* get date (identifier, length, string) */
@ -306,6 +327,8 @@ int xilinx_info (Xilinx_desc * desc)
printf ("Device Size: \t%d bytes\n"
"Cookie: \t0x%x (%d)\n",
desc->size, desc->cookie, desc->cookie);
if (desc->name)
printf("Device name: \t%s\n", desc->name);
if (desc->iface_fns) {
printf ("Device Function Table @ 0x%p\n", desc->iface_fns);

2
include/fpga.h
View File

@ -71,5 +71,7 @@ extern int fpga_load(int devnum, const void *buf, size_t bsize);
extern int fpga_loadbitstream(int devnum, char *fpgadata, size_t size);
extern int fpga_dump(int devnum, const void *buf, size_t bsize);
extern int fpga_info(int devnum);
extern const fpga_desc *const fpga_validate(int devnum, const void *buf,
size_t bsize, char *fn);
#endif /* _FPGA_H_ */

1
include/xilinx.h
View File

@ -81,6 +81,7 @@ typedef struct { /* typedef Xilinx_desc */
size_t size; /* bytes of data part can accept */
void *iface_fns; /* interface function table */
int cookie; /* implementation specific cookie */
char *name; /* device name in bitstream */
} Xilinx_desc; /* end, typedef Xilinx_desc */
/* Generic Xilinx Functions

8
include/zynqpl.h
View File

@ -45,15 +45,15 @@ extern int zynq_info(Xilinx_desc *desc);
/* Descriptor Macros */
#define XILINX_XC7Z010_DESC(cookie) \
{ xilinx_zynq, devcfg, XILINX_XC7Z010_SIZE, NULL, cookie }
{ xilinx_zynq, devcfg, XILINX_XC7Z010_SIZE, NULL, cookie, "7z010" }
#define XILINX_XC7Z020_DESC(cookie) \
{ xilinx_zynq, devcfg, XILINX_XC7Z020_SIZE, NULL, cookie }
{ xilinx_zynq, devcfg, XILINX_XC7Z020_SIZE, NULL, cookie, "7z020" }
#define XILINX_XC7Z030_DESC(cookie) \
{ xilinx_zynq, devcfg, XILINX_XC7Z030_SIZE, NULL, cookie }
{ xilinx_zynq, devcfg, XILINX_XC7Z030_SIZE, NULL, cookie, "7z030" }
#define XILINX_XC7Z045_DESC(cookie) \
{ xilinx_zynq, devcfg, XILINX_XC7Z045_SIZE, NULL, cookie }
{ xilinx_zynq, devcfg, XILINX_XC7Z045_SIZE, NULL, cookie, "7z045" }
#endif /* _ZYNQPL_H_ */