| Commit message (Collapse) | Author | Age | Files | Lines |
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Before the LIBPCI didn't probe device0 (AD16), the host bridge
drivers used bus=dev=func=0 to internally probe the host bridge's
target interface. Now that LIBPCI uses bus=dev=func=0 to access
device0, bus=0xff is introduced internally to identify the
host bridge target configuration space.
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In some GRPCI cores not setting the cache line size could result
in long prefetches on the AMBA bus which would lead to bad
performance when doing PCI reads to GRPCI target interface (DMA).
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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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