This port was the joing effort of Janne Rosberg, Ivan Ucherdzhiev, and myself. I give credit to Ivan for the kill because he is the one to held on to the end.
Squashed commit of the following:
Author: Gregory Nutt <gnutt@nuttx.org>
configs/imxrt1050-evk/scripts: Add section to linker script to handle the case where RAMFUNCs are enabled. RAMFUNCs appear to be enabled in the default configuration ... they probably should not be enabled.
Author: Ivan Ucherdzhiev <ivanucherdjiev@gmail.com>
arch/arm/src/imxrt: imxrt_lowputc.c is finished. Now everything needed for the initial port is done and ready for testing.
arch/arm/src/imxrt: Add logic to imxrt_lowputc.c. Still incomplete.
Author: Ivan Ucherdzhiev <ivanucherdjiev@gmail.com>
arch/arm/src/imxrt: Add serial support. configs/imxrt1050-evk: Add linker script.
Author: Gregory Nutt <gnutt@nuttx.org>
arch/arm/src/imxrt: Add initial cut at imxrt_allocateheap.c
Author: Ivan Ucherdzhiev <ivanucherdjiev@gmail.com>
arm/arm/src/imxrt: Completes all definitions for PADMUX, CTLMUX, and IOMUX_INPUT and mapping tables on imxrt_gpio.c and imxr_iomuxc.c.
arch/arm/src/imxrt/chip: Add definitions for IMXRT_PADCTL and IMXRT_PADMUX registers. Only the IMXRT_INPUT definitions in this commit.
arch/arm/src/imxrt/chip: Add more IOMUXC register definitions.
Author: Gregory Nutt <gnutt@nuttx.org>
configs/imxrt1050-evk: Add STRIP definition to Make.defs.
arch/arm/src/imxrt: Bring in i.MX6 memory configuration settings.
arch/arm/src/imxrt: Remove call to non-existent imxrt_gpioinit() from imxrt_start.c.
arch/arm/src/imxrt: Bring in incomplete imxrt_iomuxc.c file from i.mx6.
arch/arm/src/imxrt: Add first cut at GPIO interrupt logic.
arch/arm/include: Add definitions to support a second level of GPIO pin interrupts.
Author: Janne Rosberg <janne.rosberg@offcode.fi>
arch/arm/src/imxrt: Add imxrt_wdog.c/.h
Author: Gregory Nutt <gnutt@nuttx.org>
arch/arm/src/imxrt: Port SAMv7 interrupt logic to imxrt_irq.c.
arch/arm/src/imxrt: More clarification of the start-up memory map.
arch/arm/src/imxrt: Some mostly cosmetic clean-up to the imxrt_start.c file that was so rudely taken from the SAMv7.
arch/arm/src/imxrt: Add imxrt_start.c. Initial commit is the the SAMv7 startup logic with name changes.
Author: Ivan Ucherdzhiev <ivanucherdjiev@gmail.com>
arch/arm/src/imxrt: Adds a few IOMUXC register definitions.
Author: Janne Rosberg <janne.rosberg@offcode.fi>
arch/arm/src/imxrt: Add imxrt_clockconfig.c/.h
configs/imxrt1050-evk: Add clock configuration definitions to board.h
arch/arm/src/imxrt: Fix CCM register name; Fix doubly defined in LPUART bit field.
arch/arm/src/imxrt: Add analog defines to CCM register definition header file.
Author: Gregory Nutt <gnutt@nuttx.org>
arch/arm/src/imxrt: Bring in GPIO C files from i.MX6. Things are in disarray now because that GPIO logic depends on IOMUXC logic which is not yet in place.
arch/arm/src/imxrt: Add a few more GPIO definitions to make the header file compatible with i.MX6
arch/arm/src/imxrt/chip: Add GPIO register definition file.
Author: Janne Rosberg <janne.rosberg@offcode.fi>
arch/arm/src/imxrt: Add DCDC register definitions.
arch/arm/srch/imxrt: Add CCM register bit definitions
Author: Gregory Nutt <gnutt@nuttx.org>
Purely cosmetic
arch/arm/src/imxrt: Add system reset controller register definition header file.
Embarassingly trivial change left in compiler.
arch/arm/src/imxrt: Finishes i.MX RT1050 LPUART register definition header file.
arch/arm/src/imxrt: Beginning of an i.MX RT1050 LPUART register definition header file.
Some trivial things
Author: Janne Rosberg <janne.rosberg@offcode.fi>
arch/arm/src/imxrt: Add imxrt_wdog.h
arch/arm/src/imxrt: Add initial imxrt_ccm.h
Author: Gregory Nutt <gnutt@nuttx.org>
Trivial update to README.
arch/arm/src/imxrt: The i.MX Rt implements 4 bits of interrupt priority, not two. Thanks, Janne.
arch/arm/src/imxrt: Fix some initial compile issues. Still a long way from complete, but there is a buildable environment now for the imxrt1050-evk.
configs/imxrt1050-evk: Add an initial NSH configuration for testing.
configs/Kconfig: Hook the i.MX RT 1050 board configuration into the NuttX configuration system.
configs/imxrt_evk: Add the framework for i.MX RT 1050 board support.
arch/arm/src/imxrt: Bring in a few more files from LPC54xxx.
arch/arm/src/imxrt: Bring in imxrt_clrpend() from the LPC54xxx.
arch/arm/src/imxrt: Bring in Cortex-M7 SysTick setup from the SAMv7.
arch/arm/src/imxrt: Add a few easy files.
arch/arm/src/imxrt/chip: Add memory map header files.
arch/arm/src/imxrt: A few basic files to start the port to the i.MX RT 1050.
Squashed commit of the following:
arch/arm/src/lpc54xx: Finish off some missing logic. Complete now execpt for GPIO and LED support.
arch/arm/src/lpc54xx: Add lpc54_clrpend.c
arch/arm/src/lpc54xx: Serial driver is complete and compiles.
arch/arm/src/lpc54xx: Add beginning of a serial driver (still missing some logic)
arch/arm/src/lpc54xx: Fleshes out low level USART intialization.
arch/arm/src/lpc546xx/Kconfig: Add hooks to integrate with common seril upper half.
arch/arm/src/lpc54xx: Beginning of USART console support.
arch/arm/src/lpc54xx: Completes very basic clock configuration.
arch/arm/src/lpc54xx: Add clocking logic (still not complete)
arch/arm/src/lpc54xx: Beginning of PLL configuration logic.
arch/arm/src/lpc54xx: Fix a few things from first compile attempt. Compilation cannot work until I at least finish the clock configuration logic.
arch/arm/src/lpc54xx: Addes some SysTick logic.
arch/arm/src/lpc54xx: Completes basic startup logic (sans clock configuration) and interrupt configuration.
arch/arm/src/lpc54xx: Add generic ARMv7-M start-up logic (needs LPC54628 customizations); add emtpy file that will eventually hold the clock configuration logic.
arch/arm/src/lpc54xx: Add (incomplete) SYSCON register definition header file.
arch/arm/src/lpc54xx: Add FLEXCOMM header file.
arch/arm/src/lpc54xx: Bring in tickless clock logic from LPC43; configs/lpcxpresso-lpc54628: mount procfs if enabled.
arch/arm/src/lpc54xx: Add RIT clock definitions; add SysTick initialization (not finished)
LPC54xx and LPCXpresso-LPC54628: add more boilerplate files and stubbed out files.
arch/arm/src/lpc54xx: Add (incomplete) USART header file.
Add another condition to a Kconfig; refresh a defconfig.
arch/arm/src/lpc54xx/chip: Add LPC54628 memory map header files.
configs/lpcxpresso-lpc54628: Add basic build files for the LPCXpresso-LPC54628
arch/: Basic build directory structure for the LPC54628
BCM2708: Add enough infrastructrue (more stubs) to get a clean compilation of the Pi Zero configuration (with many undefined things at link time).
BCM2708: Add basic interrupt handling logic
BCM2708: Add interrupt register definitions.
BCM2708: Add irq.h header file
BCM2708/Pi zero: bcm_boot.c and bcm_memorymap.h now compile. Added pizero linker script.
BCM2708/Pi Zero: Add Make.defs needed to build.
arch/arm/include/bcm2708, arch/arm/src/bcm2708, configs/pizero: Add some basic build and configuration logic.
configs/pizero: Add some basic structure of the Rasperry Pi Zero port.
Created directory configs/pizero. Nothing there now but a README.txt file.
Add initial boot.c and memorymap.c files
Author: Alan Carvalho de Assis <acassis@gmail.com>
Add AUX/UART/SPI registers definition
Author: Alan Carvalho de Assis <acassis@gmail.com>
Pizero GPIO registers
* Initial commit to add GPIO definitions
* Add remaining GPIO registers definition
Alan Carvalho de Assis <acassis@gmail.com>
BCM2708 memory map: Add VBASE defintions; fix VCSDRAM address per Alan; move all virtual address to the bottom of the file to avoid confusion -- top is all physical address; bottom is all veritural address.
Add initial memory map to BCM2708/BCM2835
Alan Carvalho de Assis <acassis@gmail.com>
- sam_gpioread: Now the actual line level from the pin is read back. This is extremely important for Open-Drain Pins, which can be used bidirectionally
- Re-Implemented twi_reset-function and enhanced it so it can be called from inside the driver (see next point)
- Glitch-Filter: Added a configuration option to enable the twi-built-in glitch filter
- Added a "Single Master Mode": In EMC Testing the TWI-Bus got stuck because the TWI-Master detected a Multi-Master access (but there is no second master). With the option "Single Master" we detect these events and automatically trigger a twi_reset. We also do an automatic recovery if a slave got stuck (SDA stays low).
With the above changes I²C-Bus reliability in harsh environments (eg. EMC) is greatly improved.
The small change in the GPIO-Driver was necessary because otherwise you cannot read back the correct line status of Open-Drain Outputs and this is needed by the twi_reset function.
