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Elphel
linux-elphel
Commits
719ed94d
Commit
719ed94d
authored
Dec 15, 2013
by
Andrey Filippov
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script to generate si5338 initialization DT data from SiLabs ClockBuilder(tm) output
parent
78996901
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si5338_register_map_dts.py
helpers/si5338_register_map_dts.py
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helpers/si5338_register_map_dts.py
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719ed94d
#!/usr/bin/env python
#***************************************************************************
# FILE NAME : si5338_register_map_dts.py
# DESCRIPTION: convert si5338 register map file generated by Silicon Labs
# ClockBuilder(tm) Desktop Software into a device tree fragment, compatible
# with drivers/misc/si5338.c
# AUTHOR: Oleg Dzhimiev <oleg@elphel.com>
# Copyright (C) 2013 Elphel, Inc
# -----------------------------------------------------------------------------**
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# The four essential freedoms with GNU GPL software:
# * to run the program for any purpose
# * to study how the program works and change it to make it do what you wish
# * to redistribute copies so you can help your neighbor
# * to distribute copies of your modified versions to others
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# -----------------------------------------------------------------------------**
__author__
=
"Oleg Dzhimiev"
__copyright__
=
"Copyright 2013, Elphel, Inc."
__license__
=
"GPL"
__version__
=
"3.0+"
__maintainer__
=
"Oleg Dzhimiev"
__email__
=
"oleg@elphel.com"
__status__
=
"Development"
import
sys
try
:
File
=
sys
.
argv
[
1
]
except
IndexError
:
print
'''
Usage - terminal:
a) ./register_map_dts.py <file>
b) python register_map_dts.py <file>
where <file> is a *.h generated by Si5338 ClockBuilder
Example:
./register_map_dts.py register_map.h
Output:
<file>.dts
'''
sys
.
exit
()
dts_record_start
=
'''ps7_axi_interconnect_0: amba@0 {
ps7_i2c_0: ps7-i2c@e0004000 {
si5338@70 {
compatible = "sil,si5338";
reg = <0x70>;
si5338,init="always"; /* initialize PLL, wait for lock. Other option is 'if off'*/
si5338,configuration_data=<
'''
dts_record_end
=
'''
>;
};
};
};
'''
class
RegisterMapParser
:
def
__init__
(
self
,
File
):
self
.
File
=
File
def
generate_dts
(
self
):
print
"Parsing "
+
self
.
File
+
".
\n
"
i
,
page
,
tmpstr
=
0
,
0
,
""
with
open
(
self
.
File
,
'r'
)
as
f_r
:
for
line
in
f_r
:
if
line
[
0
]
==
'{'
:
# i+=1
line
=
line
[
line
.
find
(
'{'
)
+
1
:
line
.
find
(
'}'
)]
values
=
line
.
split
(
','
)
if
values
[
0
]
==
'255'
:
page
=
int
(
values
[
1
],
16
)
else
:
if
int
(
values
[
2
],
16
)
!=
0
:
result
=
hex
(((
256
*
page
+
int
(
values
[
0
]))
<<
16
)
+
(
int
(
values
[
1
],
16
)
<<
8
)
+
int
(
values
[
2
],
16
))
tmpstr
+=
result
+
" "
i
+=
1
if
i
%
8
==
0
:
tmpstr
+=
"
\n\t\t\t
"
return
tmpstr
Parser
=
RegisterMapParser
(
File
)
with
open
(
File
+
".dts"
,
'w'
)
as
f_w
:
f_w
.
write
(
dts_record_start
+
Parser
.
generate_dts
()
+
dts_record_end
)
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