readme

这是WINDRIVER公司所开发的针对freescale公司最新的powerpc系列MPC8560的针对vxworks的bsp。对做powerpc嵌入式的很有用了。

                 README: Motorola MPC85XX ADS (ads8540/ads8560)

This file contains board-specific information for the Motorola MPC8540/8560
ADS target board.  Specifically, this file contains information on any BSP
interface changes from previous software or hardware versions, and
contains caveats that the user must be aware of before using this BSP.
Additionally, the target board's reference entry (i.e., 'man ads8540')
provides board-specific information necessary to run VxWorks, and
should be read before this BSP is used.
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RELEASE 1.2/3

Latest TSEC driver.
Added support for L2 external buffer write for TSEC.
Use Data Only L2 cache by default.
Fix WVEVENT for Epic - took EVENT out of loop in ISR.
Support only RevA of ADS board as Pilot board obsolete.
Support FEI in all PCI slots.

RELEASE 1.2/2

Added support for RevA Board - SPR#99928
Improved boot time.
Fix to sysMsDelay in sysLib.c, now uses timebase register.
Modified instruction cache parity handler to reboot if errata CPU#31
Tested BSP with patch for SPR99776 - errata CPU#29
Includes latest TSEC driver which has several fixes. 
Changed buffer allocation for TSEC.
Fixed LBC SDRAM initialisation
Applied workaround for errata DDR#11.

RELEASE 1.2/1

Fixed SPR 91818,91920,91930,91929,91924,91923
Added Branch Prediction support in vxWorks image.
Added support for Rev2 silicon.

RELEASE 1.2/0

SPR 91924 - Flash driver only works for default platform and core freq ie
Core 266 MHz, 133 MHz CCB, 133 MHz memory, 66 MHz PCI 

SPR 91818 - FCC isn't working on the ADS8560 even though the driver is supplied and working on another 8560 board. 

SPR 91921 - Bootrom fails when 128MB DDR SDRAM is set.

SPR 91817 - TSEC may not configure correctly a link with another target/switch/hub. Fix required to plug on J56 and J47.

SPR 91920 - Board locks and needs hreset seen on older board revisions very seldomly, cause unknown. 

SPR 91923 - When mapping address space for DDR SDRAM, if overallocate address space in static TLB entries and then access an address beyond SDRAM the board will hang. Hreset required. Problem is 128MB isnt an available TLB size. Perhaps machine check should occur or bus error but it doesn't.