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* bsp/imx: Fix pointer from integer warningSebastian Huber2021-07-071-2/+5
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* bsps/irq: Remove BSP_INTERRUPT_VECTOR_MAXSebastian Huber2021-06-241-1/+0
| | | | | | This define is no longer used. Update #3269.
* bsps/irq: Add BSP_INTERRUPT_VECTOR_COUNTSebastian Huber2021-06-241-0/+1
| | | | | | | | | | | | | Assert BSP_INTERRUPT_VECTOR_MAX + 1 == BSP_INTERRUPT_VECTOR_COUNT. After building all BSPs with this patch, BSP_INTERRUPT_VECTOR_MAX can be removed and replaced by BSP_INTERRUPT_VECTOR_COUNT. The BSP_INTERRUPT_VECTOR_COUNT allows a default implementation which supports no interrupt vector at all. Using COUNT instead of MAX may avoid some interpretation issues, for example is the maximum value a valid vector number or not. Update #3269.
* bsps/irq: Remove BSP_INTERRUPT_VECTOR_MINSebastian Huber2021-06-241-1/+0
| | | | | | | | | | Remove BSP_INTERRUPT_VECTOR_MIN and unconditionally let interrupt vector numbers start with zero. The BSP_INTERRUPT_VECTOR_MIN == 0 invariant was tested by the previous commit and building all BSPs. Update #3269.
* bsps: Replace bsp_specs with an empty fileSebastian Huber2021-01-281-9/+0
| | | | | | | This fixes an issue with the latest tool chain which adds the default linker script in the endfile specification. Update #3250.
* bsp/imx: Fix system counter init for imx6Christian Mauderer2021-01-211-1/+60
| | | | | | | | | For i.MX7 U-Boot initializes the system counter. On i.MX6 Barebox is often used which doesn't initialize the counter. With this patch, we try to auto-detect whether the counter is initialized or not and do the initialization ourself if necessary. Closes #3869
* bsps/arm: Set VBAR in start.SSebastian Huber2020-12-231-1/+0
| | | | | | | | | | Set the VBAR to the vector table in the start section before bsp_start_hook_0() is called to earlier handle exceptions in RTEMS. Set the VBAR to the normal vector table in start.S for the main processor. Secondary processors set it in bsp_start_hook_0(). Update #4202.
* bsps/imx: Move imx-gpio to arm/sharedChristian Mauderer2020-11-203-560/+0
| | | | Update #4180
* imx: Move imx_iomux to arm/sharedChristian Mauderer2020-11-206-586/+1
| | | | Update #4180
* bsps: Break out AArch32 GICv3 supportKinsey Moore2020-10-052-2/+2
| | | | | This breaks out AArch32-specific code so that the shared GICv3 code can be reused by other architectures.
* bsps: Break out AArch32 portions of GPT driverKinsey Moore2020-10-053-2/+5
| | | | | | This breaks AArch32-specific portions of the ARM GPT driver into their own file so that the generic code can be moved for reuse by other architectures.
* bsp/imx: Use GPIOs for SPI CSChristian Mauderer2020-07-311-7/+85
| | | | | | | | | | | | | The chip select lines of the iMX SPI module doesn't work well for a generic API like the one RTEMS uses. The existing solution only worked in some special cases and had odd bugs when trying transfers of different sizes (like deselecting between each byte for lengths that are not dividable by 4). With this patch the same approach like on FreeBSD or Linux is used: Treat the CS lines as GPIOs. Update 3869
* bsp/imx: Add a GPIO driverChristian Mauderer2020-07-315-1/+558
| | | | Update 3869
* bsp/imx: Add an extra ecspi clock.Christian Mauderer2020-04-153-1/+9
| | | | | | Some imx chips or boards don't use the same frequency for ECSPI and IPG. Update #3869
* bsp/imx: Parse fdt pinctrl values and setup iomuxChristian Mauderer2020-02-111-0/+44
| | | | Update #3869.
* bsp/imx: Support imx6ul iomux.Christian Mauderer2020-02-111-0/+4
| | | | Update #3869.
* bsp/imx: Allow gapless SPI transfers.Christian Mauderer2020-02-111-1/+6
| | | | | | This uses the tx-threshold to reduce gaps in SPI transmissions. Update #3869.
* bsp/imx: Use muxed mode for serials.Christian Mauderer2020-02-111-0/+1
| | | | Update #3869.
* bsp/imx: Increase device memory areaSebastian Huber2020-02-111-1/+1
| | | | | | The new area is used by the i.MX 6UltraLite for example. Update #3869.
* bsp/imx: Allow GIC in different device tree node.Christian Mauderer2020-02-111-0/+3
| | | | Update #3869.
* bsp/imx: Avoid hard-coded GIC base addressSebastian Huber2020-02-112-2/+15
| | | | Update #3869.
* Use RTEMS_SYSINIT_ORDER_LAST_BUT_5Sebastian Huber2020-02-041-1/+1
| | | | | | | | Use RTEMS_SYSINIT_ORDER_LAST_BUT_5 instead of RTEMS_SYSINIT_ORDER_LAST to allow applications and support functions to place system initialization handlers behind the standard handlers. Update #3838.
* bsps: Rework work area initializationSebastian Huber2020-02-041-6/+22
| | | | | | | | | | | | | | | | | | | | The work area initialization was done by the BSP through bsp_work_area_initialize(). This approach predated the system initialization through the system initialization linker set. The workspace and C program heap were unconditionally initialized. The aim is to support RTEMS application configurations which do not need the workspace and C program heap. In these configurations, the workspace and C prgram heap should not get initialized. Change all bsp_work_area_initialize() to implement _Memory_Get() instead. Move the dirty memory, sbrk(), per-CPU data, workspace, and malloc() heap initialization into separate system initialization steps. This makes it also easier to test the individual initialization steps. This change adds a dependency to _Heap_Extend() to all BSPs. This dependency will be removed in a follow up change. Update #3838.
* bsps/arm: Define index of the workspace entry.Christian Mauderer2020-01-071-5/+4
| | | | | | The imx BSP contained a hack to change the workspace entry of the MMU table. This makes the used define visible for other BSPs too so that the same hack can be used for example in raspberry pi too.
* bsp/imx7: Rename linker command fileSebastian Huber2019-11-191-0/+0
| | | | | | | This BSP family uses only one linker command file. Use the standard name. Update #3818.
* bsps: Adjust bsp.h Doxygen groupsSebastian Huber2019-03-081-0/+18
| | | | Update #3706.
* bsp/imx: Fix for RAM end at 4GiBSebastian Huber2018-12-201-0/+5
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* bsp/imx: Adjust workspace according to device treeSebastian Huber2018-10-241-3/+50
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* bsp/imx7: Add getchark() supportSebastian Huber2018-10-171-16/+20
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* bsp/imx: Add imx_ccm_sdhci_hz()Sebastian Huber2018-09-271-0/+5
| | | | Update #3525.
* Rework initialization and interrupt stack supportSebastian Huber2018-06-271-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Statically initialize the interrupt stack area (_Configuration_Interrupt_stack_area_begin, _Configuration_Interrupt_stack_area_end, and _Configuration_Interrupt_stack_size) via <rtems/confdefs.h>. Place the interrupt stack area in a special section ".rtemsstack.interrupt". Let BSPs define the optimal placement of this section in their linker command files (e.g. in a fast on-chip memory). This change makes makes the CPU_HAS_SOFTWARE_INTERRUPT_STACK and CPU_HAS_HARDWARE_INTERRUPT_STACK CPU port defines superfluous, since the low level initialization code has all information available via global symbols. This change makes the CPU_ALLOCATE_INTERRUPT_STACK CPU port define superfluous, since the interrupt stacks are allocated by confdefs.h for all architectures. There is no need for BSP-specific linker command file magic (except the section placement), see previous ARM linker command file as a bad example. Remove _CPU_Install_interrupt_stack(). Initialize the hardware interrupt stack in _CPU_Initialize() if necessary (e.g. m68k_install_interrupt_stack()). The optional _CPU_Interrupt_stack_setup() is still useful to customize the registration of the interrupt stack area in the per-CPU information. The initialization stack can reuse the interrupt stack, since * interrupts are disabled during the sequential system initialization, and * the boot_card() function does not return. This stack resuse saves memory. Changes per architecture: arm: * Mostly replace the linker symbol based configuration of stacks with the standard <rtems/confdefs.h> configuration via CONFIGURE_INTERRUPT_STACK_SIZE. The size of the FIQ, ABT and UND mode stack is still defined via linker symbols. These modes are rarely used in applications and the default values provided by the BSP should be sufficient in most cases. * Remove the bsp_processor_count linker symbol hack used for the SMP support. This is possible since the interrupt stack area is now allocated by the linker and not allocated from the heap. This makes some configure.ac stuff obsolete. Remove the now superfluous BSP variants altcycv_devkit_smp and realview_pbx_a9_qemu_smp. bfin: * Remove unused magic linker command file allocation of initialization stack. Maybe a previous linker command file copy and paste problem? In the start.S the initialization stack is set to a hard coded value. lm32, m32c, mips, nios2, riscv, sh, v850: * Remove magic linker command file allocation of initialization stack. Reuse interrupt stack for initialization stack. m68k: * Remove magic linker command file allocation of initialization stack. Reuse interrupt stack for initialization stack. powerpc: * Remove magic linker command file allocation of initialization stack. Reuse interrupt stack for initialization stack. * Used dedicated memory region (REGION_RTEMSSTACK) for the interrupt stack on BSPs using the shared linkcmds.base (replacement for REGION_RWEXTRA). sparc: * Remove the hard coded initialization stack. Use the interrupt stack for the initialization stack on the boot processor. This saves 16KiB of RAM. Update #3459.
* bsps: Move SPI drivers to bspsSebastian Huber2018-04-231-0/+449
| | | | | | This patch is a part of the BSP source reorganization. Update #3285.
* bsps: Move I2C drivers to bspsSebastian Huber2018-04-231-0/+442
| | | | | | This patch is a part of the BSP source reorganization. Update #3285.
* bsps: Move make/custom/* files to bspsSebastian Huber2018-04-231-0/+16
| | | | | | | | | Adjust various build files. Remove automatic generation of the c/src/lib/libbsp/*/acinclude.m4 files from bootstrap script. This patch is a part of the BSP source reorganization. Update #3285.
* bsps: Move startup files to bspsSebastian Huber2018-04-208-0/+742
| | | | | | | | Adjust build support files to new directory layout. This patch is a part of the BSP source reorganization. Update #3285.
* bsps: Move console drivers to bspsSebastian Huber2018-04-201-0/+382
| | | | | | This patch is a part of the BSP source reorganization. Update #3285.
* Remove make preinstallChris Johns2018-01-2513-0/+1009
A speciality of the RTEMS build system was the make preinstall step. It copied header files from arbitrary locations into the build tree. The header files were included via the -Bsome/build/tree/path GCC command line option. This has at least seven problems: * The make preinstall step itself needs time and disk space. * Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error. * There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult. * The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit. * An introduction of a new build system is difficult. * Include paths specified by the -B option are system headers. This may suppress warnings. * The parallel build had sporadic failures on some hosts. This patch removes the make preinstall step. All installed header files are moved to dedicated include directories in the source tree. Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc, etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g. erc32, imx, qoriq, etc. The new cpukit include directories are: * cpukit/include * cpukit/score/cpu/@RTEMS_CPU@/include * cpukit/libnetworking The new BSP include directories are: * bsps/include * bsps/@RTEMS_CPU@/include * bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include There are build tree include directories for generated files. The include directory order favours the most general header file, e.g. it is not possible to override general header files via the include path order. The "bootstrap -p" option was removed. The new "bootstrap -H" option should be used to regenerate the "headers.am" files. Update #3254.
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