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* lpc176x: Fix serial ordering of initializationKevin O'Connor2022-03-011-1/+1
| | | | | | | The serial device needs to be enabled before setting the DLAB bit. This prevented UART3 from working. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* lpc176x: Add support for serial on UART3 P4.29/P4.28Kevin O'Connor2021-05-251-7/+17
| | | | Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* lpc176x: Move pin definitions together in serial.cKevin O'Connor2021-05-251-22/+28
| | | | Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* lpc176x: Introduce get_pclock_frequency()Kevin O'Connor2021-03-251-2/+2
| | | | | | | Add get_pclock_frequency() - a standard way of obtaining the peripheral clock frequency. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* lpc176x: Update code to use armcm_boot mechanismKevin O'Connor2019-08-221-4/+3
| | | | Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* lpc176x: Move irq handler code above irq setupKevin O'Connor2019-08-221-29/+29
| | | | | | Only code movement. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* lpc176x: Reset LPC_UART0->FDR when using serialKevin O'Connor2019-07-101-0/+1
| | | | | | | | | | The popular "LPC17xx-DFU-Bootloader" alters the LPC_UART0->FDR register, so be sure to reset it back to its default when using serial in Klipper. Reported by @b-vs. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* lpc176x: Use enumerations for buses and reserve pinsKevin O'Connor2019-04-041-1/+4
| | | | Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* lpc176x: Pass gpio id to gpio_peripheral()Kevin O'Connor2019-01-041-2/+2
| | | | | | | 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>
* lpc176x: Move enable_peripheral_clock to main.cKevin O'Connor2019-01-041-1/+1
| | | | | | | Move and rename function to enable_pclock() - in keeping with other ARM ports. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* lpc176x: Add an enable_peripheral_clock() helper functionKevin O'Connor2018-11-211-1/+1
| | | | Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* lpc176x: Add initial support for LPC176x processorsKevin O'Connor2018-05-251-0/+79
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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