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Interrupts have not been test yet
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This patch adds a new driver for the GRSPW SpaceWire AMBA
interface family. The new driver does not implement a standard
RTEMS driver, instead it provides only a library interface to
the GRSPW devices. This driver can be used to implement a
RTEMS I/O driver or used directly.
New features compared with old GRSPW driver:
* zero-copy packet interface
* possibility to send/receive mulitple packets per call
* optional interrupt awaken work-task to process TX/RX queues
* DMA channels support. Before only first DMA channel supported
* Separate DMA and link control
* Packet based error flags
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Most drivers use the Driver Manager for device probing, they
work on AMBA-over-PCI systems if PCI is big-endian.
New APIs:
* GPIO Library, interfaced to GRGPIO
* GENIRQ, Generic interrupt service implementation helper
New GRLIB Drivers:
* ACTEL 1553 RT, user interface is similar to 1553 BRM driver
* GR1553 (1553 BC, RT and BM core)
* AHBSTAT (AHB error status core)
* GRADCDAC (Core interfacing to ADC/DAC hardware)
* GRGPIO (GPIO port accessed from GPIO Library)
* MCTRL (Memory controller settings configuration)
* GRETH (10/100/1000 Ethernet driver using Driver manager)
* GRPWM (Pulse Width Modulation core)
* SPICTRL (SPI master interface)
* GRSPW_ROUTER (SpaceWire Router AMBA configuration interface)
* GRCTM (SpaceCraft on-board Time Management core)
* SPWCUC (Time distribution over SpaceWire)
* GRTC (SpaceCraft up-link Tele core)
* GRTM (SpaceCraft down-link Tele Metry core)
GR712RC ASIC specific interfaces:
* GRASCS
* CANMUX (select between OCCAN and SATCAN)
* SATCAN
* SLINK
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The CCHIP driver is replaced with the GR_701 driver. The
RASTA driver is replaced by the GR-RASTA-IO driver.
All drivers are now compatible with both LEON2 and LEON3,
drivers were initialized directly by the PCI-board drivers
are now initialized by the driver manager and therefore
does not require the double code created by including for
example grcan.c into grcan_rasta.c. The other drivers needs
to be updated to the driver manager framework however.
Added support for:
* GR-701 (only LEON2 before)
* GR-RASTA-IO (only LEON2 before)
* GR-RASTA-ADCDAC
* GR-RASTA-TMTC
* GR-RASTA-SPW-ROUTER
* GR-TMTC-1553
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The old code used a limited PCI configuration library, which was
duplicated into LEON2 and LEON3 BSP pci.c together with respective
Host controller PCI interface.
The LEON2 BSP had support for AT697 PCI, and LEON3 for GRPCI PCI
Host controller. With this update new PCI Host drivers are added,
and all support the new generic PCI Library:
* AT697 PCI (LEON2 only)
* GRPCI (LEON2-GRLIB and LEON3)
* GRPCI2 (LEON2-GRLIB and LEON3)
* Actel PCIF GRLIB Wrapper (LEON3 only)
The LEON2 BSP is defined as big-endian PCI in bsp.h, since the
AT697 supports only big-endian PCI.
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This patch reimplements the console driver of the LEON3 BSP, it
has split up the console driver in two parts: Console driver and
UART driver. Before the only UART supported was APBUART and only
on-chip APBUARTs found during startup. However splitting the
driver in two allows any UART interface to reuse the termios
attach code of the console driver, pratically this has always
been a problem when discovering APBUARTs after startup for
example the PCI board GR-RASTA-IO has APBUARTs and must wait
until after PCI has been setup.
Since the only current driver that supports the new console
driver uses the Driver Manager, the new console driver is
only enabled when Driver Manager is initialized during startup.
The new APBUART driver supports:
* polling mode
* interrupt mode
* task-driven mode
* set UART attributes
* read UART attributes (system console inherit settings from
boot loader)
* Driver manager for finding/initialization of the hardware
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With this patch the LEON family can access the GRLIB GPTIMER using
the Timer library (TLIB).
A System Clock driver instead of BSP/clock/ck_init.c is provided
using the TLIB. The classic clock driver is split in two parts,
clock driver and timer driver. The BSPs need only to fullfill the
timer interface instead of the clock interface. Currently only
LEON3 uses it. The LEON2 Timer is not ported to TLIB.
The GPTIMER driver is implemented using the Driver Manager, so the
System Clock Driver is at this point only suitable for LEON3 when
the driver manager is initialized during BSP startup. When the DrvMgr
is not initialized during startup the standard BSP/clock dirver is
used.
LEON2 sometimes also needs to access GPTIMER when a off-chip GRLIB AMBA
systems is connected, for example AMBA-over-PCI.
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Last timer instance of GPTIMER is sometimes a watchdog timer that
can reset the system on timer underflow.
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With this patch the preinstall.am files are in a set order and not
dependent on now perl implements a hash.
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Apparently, at some point automake output changed and these were
not updated.
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Move the APBUART console driver support to the shared SPARC area so that
it can be reused by other BSPs. Only the console driver initialization
is now BSP specific.
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Moved prototype for __gnat_install_handler and __gnat_install_handler_common to common header file. Placed header file in bsp namespace.
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This reverts commit 7579e255127ee0cf04901bbab6c1538559053508.
Improve QEMU to support AMBA plug and play instead.
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Some register layout definitions for LEON3 reside in ambapp.h which
does not really has anything to do with device registers. The
register structures has been incorrectly named LEON3_*, the cores
are not only used on LEON3 but on LEON4 and perhaps on LEON5 when
that day comes. Some structures has been renamed according to the
GRLIB core name instead, which CPU that actually use it is not
relevant. Drivers has been updated with the new names.
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
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The old layer had some limitations/problems for multiple AHB
buses since the data structure containing all AMBA devices
were allocated before scanning.
The new layer create devices as they are found and memory is
allocated using malloc() or bsp_early_malloc() during booting.
The old 8 functions for finding a specific AHB-Slave or
APB-Slave device has been replaced with one function,
ambapp_for_each(), which iterates over all devices matching
the specified search options and calls a user provided
function. The new way lowers the footprint and makes searching
more flexible.
The frequency information is now supported, if the frequency
of one device is reported by the user.
More AHB-to-AHB bridges are supported.
The API has been split into several parts in order to lower the
footprint.
The API also introduces the AMBAPP CORE concept, where one
ambapp_core can be created from one AHB Master, AHB Slave
and one APB Slave, at least one device is required for creating
a core.
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
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The implementation use IRQ number instead of vector number since
some IRQs does not have a unique vector, for example the extended
interrupts all enter the same trap vector entry.
Added support for the LEON3 extended interrupt controller when using
the shared IRQ layer.
ERC32 patches untested.
Signed-off-by: Daniel Hellstrom <daniel@gaisler.com>
Regenerate
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* startup/linkcmds: Include basic linker command file and define only
board specific values. Define RAM and PROM limits only if not defined
by command line arguments.
* Makefile.am, preinstall.am: Reflect changes above.
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* Makefile.am, preinstall.am:
* include/coverhd.h: Removed.
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* Makefile.am: Cleanup ../../shared/include/bootcard.h handling.
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* Makefile.am, preinstall.am: Add initial i2c and update OC-CAN
support.
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* Makefile.am, preinstall.am: New files, split of printk.
* console/console.c, console/debugputs.c: Split printk support out.
* include/spacewire.h: Removed.
* Makefile.am, preinstall.am: Use the following new drivers from
sparc/shared: PCI, b1553BRM, SpaceWire(GRSPW), CAN (GRCAN), Raw UART.
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* Makefile.am, preinstall.am, amba/amba.c, include/amba.h,
include/leon.h: LEON3 AMBA PnP bus scanning moved to
shared/amba/amba.c and shared/include/ambapp.h. The AMBA scanning was
improved to take account for PnP info address translation. This is
useful when scanning remote AMBA busses for example when a board
connected with PCI has an AMBA bus that needs to be scanned, before
the addresses was hard coded. Also, LEON2 now have AMBA PnP bus
scanning support. By using the new AMBA scanning routines it is
possible to isolate the AMBA scanning code to ambapp.c, however
existing drivers should be updated to use them in order to save
space.
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* preinstall.am: Install spacewire.h
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