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* bsps/raspberrypi: Add SEV Instruction for RPi SMP firmware changes.pranav2021-08-181-0/+1
| | | | | | The Pi firmware added a wfe(wait for event), the cores 1-3 wait for the start address being written to the mailbox register, followed by a SEV poke to the mailbox that acts as a wfe wake-up event.
* 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.
* bsps/arm: Invalidate TLB in start.SSebastian Huber2020-12-232-5/+0
| | | | Update #4202.
* bsps/arm: Clear SCTLR[M, I, A, C] in start.SSebastian Huber2020-12-231-45/+2
| | | | | | | Initialize the data and unified cache levels. Invalidate the instruction cache levels. Update #4202.
* bsps/arm: Invalidate branch predictors earlierSebastian Huber2020-12-231-1/+0
| | | | | | | Make sure the branch predictors are invalidated before the first branch is executed. Update #4202.
* bsps/arm: Set VBAR in start.SSebastian Huber2020-12-232-3/+3
| | | | | | | | | | 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.
* bsp/raspberrypi: Fix build warnings.G S Niteesh Babu2020-04-101-0/+2
| | | | | | 1) _Memory_Initialize makes pointer from integer without a cast. 2) printf format error, expects %u but %lu provided.
* bsp/raspberry: Add a bsp_fdt_map_intr().Christian Mauderer2020-04-041-0/+24
| | | | Fixes #3903
* bsps: Rework work area initializationSebastian Huber2020-02-041-8/+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.
* bsp/raspberrypi: Updated the console API.G S Niteesh2020-01-071-0/+15
| | | | | | Replaces the legacy termios API with new termios API (#3034) Replaces the custom PL011 serial driver with RTEMS arm-pl011. Update #3034
* bsp/raspberrypi: Fix size of work area.Christian Mauderer2020-01-073-185/+69
| | | | | | | | | | The BSP tried to get the size of the SDRAM based on the revision code. Unfortunately the code had some bugs so that the default size has been used. Beneath that the MMU table hasn't been adapted. This patch queries the SDRAM size via a special VC Mailbox call instead. For the MMU adaption a simmilar method to the one in the imx BSP is used.
* arm/raspberry: Set the workspace based on the mailbox version.Chris Johns2019-08-123-26/+135
| | | | | | - Update the linkcmd file to support configure settings - Set the workspace size based on the revision value
* libdl/debugger: Fix the broken list delete when unloading an object module.Chris Johns2019-08-121-0/+0
| | | | Closes #3777
* arm/raspberrypi: Fix linker mapSebastian Huber2019-07-302-27/+9
| | | | | | | Add NULL-pointer protection. Make MMU table read-only. Move vector table to start section. Close #3774.
* bsps: Adjust bsp.h Doxygen groupsSebastian Huber2019-03-081-1/+1
| | | | Update #3706.
* bsps: BSP_INTERRUPT_STACK_AT_WORK_AREA_BEGINSebastian Huber2018-09-031-7/+0
| | | | | | | Remove the BSP_INTERRUPT_STACK_AT_WORK_AREA_BEGIN hack. The interrupt stacks are now allocated by the linker. Update #3459.
* _SMP_Start_multitasking_on_secondary_processor()Sebastian Huber2018-07-251-1/+1
| | | | | Pass current processor control as first parameter to make dependency more explicit.
* Rework initialization and interrupt stack supportSebastian Huber2018-06-272-9/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* bsp/raspberrypi: Move source files to bspsSebastian Huber2018-04-254-0/+1116
| | | | | | This patch is a part of the BSP source reorganization. Update #3285.
* bsps/arm: Move bsp_memory_management_initialize()Sebastian Huber2018-04-241-1/+17
| | | | | | | | This function is only used by the raspberrypi BSP. This patch is a part of the BSP source reorganization. Update #3285.
* bsps: Move startup files to bspsSebastian Huber2018-04-2010-0/+634
Adjust build support files to new directory layout. This patch is a part of the BSP source reorganization. Update #3285.
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