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Diffstat (limited to 'c/src/lib/libbsp/powerpc/motorola_powerpc/README.MVME2100')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/motorola_powerpc/README.MVME2100 | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/c/src/lib/libbsp/powerpc/motorola_powerpc/README.MVME2100 b/c/src/lib/libbsp/powerpc/motorola_powerpc/README.MVME2100 deleted file mode 100644 index 6b06eb0f4f..0000000000 --- a/c/src/lib/libbsp/powerpc/motorola_powerpc/README.MVME2100 +++ /dev/null @@ -1,128 +0,0 @@ -The MVME2100 is a Motorola VMEbus board which is similar to the other -Motorola PowerPC boards supported by this BSP. But it does not support -the Motorola CPU Configuration Register. This makes it impossible to -dynamically probe and determine that you are executing on this board -variant. So this BSP variant must be explicitly built to only support -the MVME2100. The complete list of differences found so far is: - - * No CPU Configuration Register - * one COM port - * COM port is on PCI IRQ not ISA IRQ - * limited on RAM (32 or 64 MB) - * uses the EPIC interrupt controller on the MPC8240 - * does not have an ISA bus but has an ISA I/O address space - * cannot set DBAT2 in bspstart like other variants because - there are PCI/ISA Interrupt Acknowledge registers at this space - This BSP may have left some PCI memory uncovered - * PPCBug starts programs with vectors still in ROM - -Supported Features: - - Interrupt driven console using termios - - Network device driver - - Real-Time Clock driver - - Clock Tick Device Driver - -Things to address: - - Does not return to monitor - - Level 1 cache is disabled for now - - Check on trying to read CPU Configuration Register for CHRP/Prep for PCI - and report a failure if in the wrong mode. May be able to set the model - but it may be hard to test if we break PPCBug. - - Use NVRAM for network configuration information - -BSP Features Not Implemented: - - VMEbus mapped in but untested - - OpenPIC features not required for BSP are not supported - -Memory Map -========== - BAT Mapping - - ffff ffff |------------------------------------| ----- ffff ffff - | ROM/FLASH Bank 0 | | - fff0 0000 |------------------------------------| | - | System I/O | | - ffe0 0000 |------------------------------------| | - | Replicated ROM/FLASH Bank 0 | | - | Replicated System I/O | | - ff80 0000 |------------------------------------| | - | ROM/FLASH Bank 1 | DBAT3 - ff00 0000 |------------------------------------| - Supervisor R/W - | PCI Interrupt Acknowledge | - Cache Inhibited - fef0 0000 |------------------------------------| - Guarded - | PCI Configuration Data Register | | - fee0 0000 |------------------------------------| | - | PCI Configuration Address Register | | - fec0 0000 |------------------------------------| | - | PCI I/O Space | | - fe80 0000 |------------------------------------| | - | PCI/ISA I/O Space | | - fe00 0000 |------------------------------------| | - | PCI/ISA Memory Space | | - fd00 0000 |------------------------------------| | - | | | - | xxxxxxxxxxxxxx| ----- f000 0000 - | x not mapped | | - | xxxxxxxxxxxxxx| ----- a000 0000 - | | | - | | | - | | DBAT0 - | | - Supervisor R/W - | | - Cache Inhibited - | | - Guarded - | | | - | | | - | | ----- 9000 0000 - | | | - | | | - | PCI Memory Space | DBAT2 - | | - Supervisor R/W - | | - Cache Inhibited - | | - Guarded - | | | - | | | - | | | - 8000 0000 |------------------------------------| ----- 8000 0000 - | x | - | x not mapped | - | Reserved xxxxxxxxxxxxxx| ----- 1000 0000 - | | | - | | | - 0200 0000 |------------------------------------| | - | | | - | | | - | | | - | | | - | DRAM (32MB) | DBAT1/IBAT1 - | | - Supervisor R/W - | | | - | | | - | | | - | | | - 0000 0000 |------------------------------------| ----- 0000 0000 - - -TTCP Performance on First Day Run -================================= -Fedora Core 1 on (according to /proc/cpuinfo) a 300 Mhz P3 using Netgear -10/100 CardBus NIC on a dedicated 10BaseT LAN. - -ON MVME2100: ttcp -t -s 192.168.2.107 -REPORTED ON MVME2100: -ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -> 192.168.2.107 -ttcp-t: socket -ttcp-t: connect -ttcp-t: 16777216 bytes in 20.80 real seconds = 787.69 KB/sec +++ -ttcp-t: 2048 I/O calls, msec/call = 10.40, calls/sec = 98.46 -ttcp-t: 0.0user 20.8sys 0:20real 100% 0i+0d 0maxrss 0+0pf 0+0csw - -ON MVME2100: ttcp -t -s 192.168.2.107 -REPORTED ON MVME2100: -ttcp -r -s -ttcp-r: buflen=8192, nbuf=2048, align=16384/0, port=5001 tcp -ttcp-r: socket -ttcp-r: accept from 192.168.2.107 -ttcp-r: 16777216 bytes in 15.41 real seconds = 1063.21 KB/sec +++ -ttcp-r: 11588 I/O calls, msec/call = 1.36, calls/sec = 751.98 -ttcp-r: 0.0user 15.4sys 0:15real 100% 0i+0d 0maxrss 0+0pf 0+0csw - |