Basic I2C initialization for the NGW100 board:
- Provide empty i2c device table. Daughtercards may add devices,
and the ATtiny24 could do stuff too.
- Set up EXTINT(3) so the ATtiny24 can interrupt the AP7000.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
On our custom board we have other oscillator rates than on atngw100 and
atstk100x.
Currently these rates are hardcoded in arch/avr32/mach-at32ap/at32ap700x.c.
This patch moves them into board specific code.
Signed-off-by: Alex Raimondi <raimondi@miromico.ch>
Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>
These are derivatives of the AT32AP7000 chip, which means that most of
the code stays the same. Rename a few files, functions, definitions
and config symbols to reflect that they apply to all AP700x chips, and
exclude some platform devices from chips where they aren't present.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Make the NGW100 bitbang i2c use open drain signaling.
Also, speed it up, so it's closer to 100 kHz ... the code paths seem
to be long enough that the udelay isn't dominating bit times. The
peak bit rate I observed was around 125 kHz, but that's with large
delays (usually before ACK/NAK) which hold the overall rate down to
around 80 kHz (call it 100 usec/byte on average).
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
This patch makes the SMC configuration take timings in clock cycles
instead of nanoseconds. A function to calculate timings in clock
cycles is added.
This patch removes the rounding troubles of the previous SMC
configuration method.
[hskinnemoen@atmel.com: fix atstk1002/atngw100 flash config]
Signed-off-by: Kristoffer Nyborg Gregertsen <gregerts@stud.ntnu.no>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Implement at32_add_device_usba() and use it to wire up the USBA device
on ATSTK1000 and ATNGW100.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
The NGW100 has a board controller which is hooked up to the TWI lines
on AP7000. Since the TWI driver isn't in mainline, use the i2c-gpio
driver in the mean time.
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Add GPIO leds to the NGW100 platform and its defconfig.
Access through /sys/class/leds/{a,b,sys}/* files; one
defaults to a heartbeat.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
USART mapping used to be accomplished by the manual filling of
at32_usart_map[] and at32_nr_usarts. This has now been replaced
with at32_map_usart() so we can remove these variables.
Signed-off-by: Ben Nizette <ben.nizette@iinet.net.au>
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
David Brownell
Alex
Haavard Skinnemoen
David Brownell
Kristoffer Nyborg Gregertsen
ben.nizette@iinet.net.au