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Simple VME FMC Carrier SVEC
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Simple VME FMC Carrier SVEC
Commits
cb16feb6
Commit
cb16feb6
authored
Jul 08, 2021
by
Federico Vaga
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sw: replace loader retry with a 1ms timeout
Signed-off-by:
Federico Vaga
<
federico.vaga@cern.ch
>
parent
df883e77
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12 additions
and
3 deletions
+12
-3
svec-core.c
software/kernel/svec-core.c
+12
-3
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software/kernel/svec-core.c
View file @
cb16feb6
...
@@ -32,6 +32,8 @@
...
@@ -32,6 +32,8 @@
#include <linux/fpga/fpga-mgr.h>
#include <linux/fpga/fpga-mgr.h>
#include <vmebus.h>
#include <vmebus.h>
#include "asm/processor.h"
#include "linux/jiffies.h"
#include "svec.h"
#include "svec.h"
#include "svec-compat.h"
#include "svec-compat.h"
#include "hw/xloader_regs.h"
#include "hw/xloader_regs.h"
...
@@ -317,19 +319,26 @@ static int svec_fpga_write_word(struct fpga_manager *mgr,
...
@@ -317,19 +319,26 @@ static int svec_fpga_write_word(struct fpga_manager *mgr,
void
*
loader_addr
=
vdev
->
map_cr
.
kernel_va
+
SVEC_BASE_LOADER
;
void
*
loader_addr
=
vdev
->
map_cr
.
kernel_va
+
SVEC_BASE_LOADER
;
uint32_t
xldr_fifo_r0
;
/* Bitstream data input control register */
uint32_t
xldr_fifo_r0
;
/* Bitstream data input control register */
uint32_t
xldr_fifo_r1
;
/* Bitstream data input register */
uint32_t
xldr_fifo_r1
;
/* Bitstream data input register */
int
rv
,
try
=
10000
;
int
rv
;
unsigned
long
j
;
if
(
size
<=
0
||
size
>=
5
)
if
(
size
<=
0
||
size
>=
5
)
return
-
EINVAL
;
return
-
EINVAL
;
xldr_fifo_r0
=
((
size
-
1
)
&
0x3
)
|
(
is_last
?
XLDR_FIFO_R0_XLAST
:
0
);
xldr_fifo_r0
=
((
size
-
1
)
&
0x3
)
|
(
is_last
?
XLDR_FIFO_R0_XLAST
:
0
);
xldr_fifo_r1
=
htonl
(
word
);
xldr_fifo_r1
=
htonl
(
word
);
j
=
jiffies
+
msecs_to_jiffies
(
1
);
do
{
do
{
rv
=
ioread32be
(
loader_addr
+
XLDR_REG_FIFO_CSR
);
rv
=
ioread32be
(
loader_addr
+
XLDR_REG_FIFO_CSR
);
}
while
(
rv
&
XLDR_FIFO_CSR_FULL
&&
--
try
>=
0
);
if
(
!
(
rv
&
XLDR_FIFO_CSR_FULL
))
break
;
cpu_relax
();
}
while
(
!
time_after
(
jiffies
,
j
));
if
(
rv
&
XLDR_FIFO_CSR_FULL
)
if
(
rv
&
XLDR_FIFO_CSR_FULL
)
{
dev_dbg
(
&
mgr
->
dev
,
"FIFO full {csr: 0x%08x}
\n
"
,
rv
);
return
-
EBUSY
;
/* bootloader busy */
return
-
EBUSY
;
/* bootloader busy */
}
iowrite32be
(
xldr_fifo_r0
,
loader_addr
+
XLDR_REG_FIFO_R0
);
iowrite32be
(
xldr_fifo_r0
,
loader_addr
+
XLDR_REG_FIFO_R0
);
iowrite32be
(
xldr_fifo_r1
,
loader_addr
+
XLDR_REG_FIFO_R1
);
iowrite32be
(
xldr_fifo_r1
,
loader_addr
+
XLDR_REG_FIFO_R1
);
...
...
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