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13 Commits

Author SHA1 Message Date
Kevin O'Connor 700e35c6ac armcm_timer: Unify udelay() implementation 
Move the udelay() code from various arm board directories into the
src/generic/armcm_timer.c code.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2019-06-09 20:27:57 -04:00
Matt Baker 38f3d65ac5 lpc176x: refactor usbserial to use udelay helper. 
Signed-off-by: Matt Baker <baker.matt.j@gmail.com>
 2019-04-06 20:53:15 -04:00
Matt Baker e83071c9fe lpc176x: force minimum usb disconnect time 
Fixes GitHub Issue #1499. Resolves USB hang by forcing a minimum
USB disconnection time at boot.

Signed-off-by: Matt Baker <baker.matt.j@gmail.com>
 2019-04-06 20:53:15 -04:00
Kevin O'Connor 3e71a57f67 lpc176x: Use enumerations for buses and reserve pins 
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2019-04-04 18:29:31 -04:00
Kevin O'Connor fbbe2cf9d6 lpc176x: Explicitly disconnect USB on a bootloader request 
It appears some host machines may not recognize that the USB device
has disconnected upon start of bootloader mode.  Explicitly disable
USB and add a 5ms delay to help signal the host of the upcoming
change.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2019-03-31 13:37:01 -04:00
Kevin O'Connor 078a03dc21 lpc176x: Add mechanism for entering the bootloader from a USB signal 
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2019-01-13 12:25:58 -05:00
Kevin O'Connor 277a8185e1 lpc176x: Pass gpio id to gpio_peripheral() 
Pass the gpio id instead of the bank/pin to gpio_peripheral().  This
is in keeping with other ARM ports.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2019-01-04 11:07:22 -05:00
Kevin O'Connor a40df4b6f7 lpc176x: Move enable_peripheral_clock to main.c 
Move and rename function to enable_pclock() - in keeping with other
ARM ports.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2019-01-04 11:00:09 -05:00
Kevin O'Connor b84ecebf8f usb_cdc: Add support for detecting a USB level Arduino bootloader request 
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2018-12-24 11:42:19 -05:00
Kevin O'Connor 93e4897044 usb_cdc: Add usb_read_ep0_setup() interface function 
Use new usb_read_ep0_setup() function when reading a setup packet -
this allows the low-level usb hardware code to better handle errors.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2018-09-30 22:32:19 -04:00
Kevin O'Connor 6ab16d2407 usb_cdc: Rename interface functions to avoid the term "setup" 
Use "ep0" when referring to endpoint0 - don't use "setup" as that can
be confused with the low-level usb setup token.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2018-09-30 14:09:55 -04:00
Kevin O'Connor 635a199a47 usb_cdc: Allow USB endpoint ids to be board specific 
It's common for boards to have restrictions on the type of each
endpoint.  So, make it possible for the board to select the endpoint
ids for each endpoint.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2018-08-06 23:36:05 -04:00
Kevin O'Connor c381d03aad lpc176x: Initial support for serial over usb 
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
 2018-05-25 11:52:13 -04:00