Files
rtems/bsps/sparc/leon3
Sebastian Huber be96cb4345 sparc: Simplify trap table initialization
Move _ISR_Handler() to a separate file since it is now only used if a handler
is installed by _CPU_ISR_install_raw_handler().

Statically initialize the traps for external interrupts to use the new
_SPARC_Interrupt_trap() which directly dispatches the interrupt handlers
installed by rtems_interrupt_handler_install() via the BSP-provided
_SPARC_Interrupt_dispatch().

Since the trap table is now fully statically initialized, there is no longer a
dependency on the Cache Manager in the default configuration.

Update #4458.
2021-06-24 11:36:28 +02:00
..
2019-01-22 12:46:28 +01:00
2021-06-17 12:58:33 +02:00
2021-06-17 12:58:33 +02:00

#
#  LEON3 BSP README
#
#
#

BSP NAME:           leon3
BUS:                AMBA Plug & Play 
CPU FAMILY:         sparc
CPU:                LEON3
                    

DRIVERS
=======
Timer Driver, Console Driver, Opencores Ethernet Driver

Notes
=====

This BSP supports single LEON3-processor system with minimum peripheral
configuration of one UART. BSP reads system configuration area to get
information such as memory mapping and usage of interrupt resources and
installs device drivers based on this information.

There are no restrictions on memory mapping of UARTS. Console driver
operates in polled mode.

Console driver uses timer 0 of General Purpose Timer and must be configured
to use separate interrupts for each timer. No restrictions on memory mapping.
Interrupt request signal can not be shared with other devices.  

Ethernet MAC core can be mapped in arbitrary memory address space and use
arbitrary interrupt request signal. Interrupt request signal can not be
shared with other devices.