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Eero Nurkkala 1d3ce6b527 arm64/imx9: provide EL3 bootloader support for iMX9
This provides a capable bootloader that may be run from OCRAM.
The OCRAM contains regions that are always zero, so the linker
file avoids those with best effort.

iMX9 infrastructure expects:
  - 0x20480000 (Start of OCRAM, AHAB)
  - 0x2049a000 (NuttX or SPL)
  - 0x204e0000 (ARM Trustzone, not used)

When started from SD-card, the offsets are:
  - 0x1f000 with AHAB
  - 0xa000  without AHAB

Signed-off-by: Eero Nurkkala <eero.nurkkala@offcode.fi>
2024-05-21 09:02:35 +08:00
.github build(deps): bump github/super-linter from 5 to 6 2024-04-29 17:34:32 +08:00
arch arm64/imx9: provide EL3 bootloader support for iMX9 2024-05-21 09:02:35 +08:00
audio Documentation: remove all migrated READMEs 2023-10-29 21:03:54 -03:00
binfmt all: Fix accessing uninitialized local variables 2024-04-04 11:51:54 +08:00
boards arm64/imx9: provide EL3 bootloader support for iMX9 2024-05-21 09:02:35 +08:00
cmake fix nxstyle 2024-05-13 22:24:36 +02:00
crypto Replace all asserts in kernel code with ASSERT 2024-05-17 10:18:16 -03:00
Documentation stm32h7/linum-stm32h753bi: add support to ethernet connection 2024-05-19 10:25:50 -03:00
drivers pm_procfs: update state up to now when pm procfs read 2024-05-20 10:29:49 +08:00
dummy build: add initial cmake build system 2023-07-08 13:50:48 +08:00
fs procfs/meminfo: fit line width in 80 chars 2024-04-24 16:33:32 +08:00
graphics video/vnc: add vnc_fb_register 2024-04-12 17:42:49 +08:00
include nuttx kconfig: rename a few recently-added options 2024-05-21 01:11:44 +08:00
libs Replace all asserts in kernel code with ASSERT 2024-05-17 10:18:16 -03:00
mm Replace all asserts in kernel code with ASSERT 2024-05-17 10:18:16 -03:00
net Replace all asserts in kernel code with ASSERT 2024-05-17 10:18:16 -03:00
openamp openamp/libmetal.cmake: sync with libmetal.defs 2024-03-28 16:07:49 +08:00
pass1 passl: Author Gregory Nutt: update licenses to Apache 2021-02-09 01:21:53 -08:00
sched sched: remove redundant variables "switched" 2024-05-21 09:00:29 +08:00
syscall build/cmake: add initial KERNEL mode support 2024-03-15 16:21:23 +08:00
tools arm64/imx9: provide EL3 bootloader support for iMX9 2024-05-21 09:02:35 +08:00
video build: add initial cmake build system 2023-07-08 13:50:48 +08:00
wireless Remove the back slash from long literal string 2024-02-19 16:43:15 +01:00
.asf.yaml feat: add a GitHub action to lint the YAML files 2020-12-15 09:52:04 -06:00
.gitignore fs/vfat: Fix typo in the macro DIRSEC_BYTENDX 2024-02-03 12:46:08 -03:00
.yamllint feat: add a GitHub action to lint the YAML files 2020-12-15 09:52:04 -06:00
AUTHORS AUTHORS: add Tomek CEDRO to the list 2023-03-07 14:15:55 +01:00
CMakeLists.txt cmake:enhance set_source_files_properties for NuttX CMake module 2024-04-18 14:57:58 -03:00
CONTRIBUTING.md Remove the tail spaces from all files except Documentation 2023-02-26 13:24:24 -08:00
INVIOLABLES.md
Kconfig rpmsg/debug: add debug configs and macros 2024-02-15 19:53:55 -08:00
LICENSE RP2040: Implement board_uniqueid() 2024-03-17 10:00:25 -03:00
Makefile tools:fix some error use of shell command in Windows native build 2022-11-06 16:41:49 +08:00
NOTICE Remove the double blank line from source files 2022-02-20 20:10:14 +01:00
README.md Gathering community recommendations 2023-10-28 13:55:56 +08:00
ReleaseNotes Documentation: move ReleaseNotes 2023-09-26 20:41:00 +08:00

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Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).

For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.

Getting Started

First time on NuttX? Read the Getting Started guide! If you don't have a board available, NuttX has its own simulator that you can run on terminal.

Documentation

You can find the current NuttX documentation on the Documentation Page.

Alternatively, you can build the documentation yourself by following the Documentation Build Instructions.

The old NuttX documentation is still available in the Apache wiki.

Supported Boards

NuttX supports a wide variety of platforms. See the full list on the Supported Platforms page.

Contributing

If you wish to contribute to the NuttX project, read the Contributing guidelines for information on Git usage, coding standard, workflow and the NuttX principles.

License

The code in this repository is under either the Apache 2 license, or a license compatible with the Apache 2 license. See the License Page for more information.