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SAMA5: Beginning of EMAC and GMAC register definition header files

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Gregory Nutt
2013-09-12 15:45:12 -06:00
parent 606ef4bd6a
commit bee5f08b4e
1 changed files with 58 additions and 2 deletions
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configs/sama5d3x-ek/README.txt
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@@ -1802,6 +1802,55 @@ Configurations
CONFIG_I2CTOOL_MAXBUS=2 : TWI2 has the maximum bus number 2
CONFIG_I2CTOOL_DEFFREQ=100000 : Pick a consistent frequency
The I2C tool has extensive help that can be accessed as follows:
nsh> i2c help
Usage: i2c <cmd> [arguments]
Where <cmd> is one of:
Show help : ?
List busses : bus
List devices : dev [OPTIONS] <first> <last>
Read register : get [OPTIONS] [<repititions>]
Show help : help
Write register: set [OPTIONS] <value> [<repititions>]
Verify access : verf [OPTIONS] [<value>] [<repititions>]
Where common "sticky" OPTIONS include:
[-a addr] is the I2C device address (hex). Default: 03 Current: 03
[-b bus] is the I2C bus number (decimal). Default: 0 Current: 0
[-r regaddr] is the I2C device register address (hex). Default: 00 Current: 00
[-w width] is the data width (8 or 16 decimal). Default: 8 Current: 8
[-s|n], send/don't send start between command and data. Default: -n Current: -n
[-i|j], Auto increment|don't increment regaddr on repititions. Default: NO Current: NO
[-f freq] I2C frequency. Default: 100000 Current: 100000
NOTES:
o Arguments are "sticky". For example, once the I2C address is
specified, that address will be re-used until it is changed.
WARNING:
o The I2C dev command may have bad side effects on your I2C devices.
Use only at your own risk.
As an eample, the I2C dev comman can be used to list all devices
responding on TWI0 (the default) like this:
nsh> i2c dev 0x03 0x77
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- 1a -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- 39 -- -- -- 3d -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: 60 -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
nsh>
Address 0x1a is the WM8904. Address 0x39 is the SIL9022A. I am
not sure what is at address 0x3d and 0x60
STATUS:
PCK FREQUENCY
2013-7-19: This configuration (as do the others) run at 396MHz.
@@ -1855,9 +1904,16 @@ Configurations
UDPHS
2013-9-5: The UDPHS driver is basically functional.
AT24 SERIAL EEPROM
I2C
2013-9-12: I have been unusuccessful getting the external serial
EEPROM to work.
AT24 EEPROM to work. I am pretty sure that this is a problem with
my external AT24 board (the TWI0 bus hangs when the AT24 is plugged
in). I will skip the AT24 integration since it is not on the critical
path at the moment.
2013-9-12: The I2C tool, however, seems to work well. It succesfully
enumerates the devices on the bus and successfully exchanges a few
commands. The real test of the come later when a real I2C device is
integrated.
ostest:
This configuration directory, performs a simple OS test using