Source-Changes-HG archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
[src/thorpej_scsipi]: src/sys/arch/mvme68k/docs Some snippets of documentatio...
details: https://anonhg.NetBSD.org/src/rev/e81fbf54f1e4
branches: thorpej_scsipi
changeset: 477348:e81fbf54f1e4
user: scw <scw%NetBSD.org@localhost>
date: Thu Dec 14 20:30:15 2000 +0000
description:
Some snippets of documentation for mvme68k...
diffstat:
sys/arch/mvme68k/docs/Interrupts | 161 +++++++++++++++++++++++++++++++++++++++
sys/arch/mvme68k/docs/TODO | 70 ++++++++++++++++
2 files changed, 231 insertions(+), 0 deletions(-)
diffs (239 lines):
diff -r feed81a9a012 -r e81fbf54f1e4 sys/arch/mvme68k/docs/Interrupts
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/mvme68k/docs/Interrupts Thu Dec 14 20:30:15 2000 +0000
@@ -0,0 +1,161 @@
+$NetBSD: Interrupts,v 1.1.2.2 2000/12/14 20:30:15 scw Exp $
+
+NetBSD/mvme68k Interrupt Levels
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+NetBSD/mvme68k interrupts are dependent on the type of device which
+generates them. This holds true regardless of what bus the device is
+situated on (eg. local, VMEbus or IndustryPack site).
+
+On MVME147, there is a fixed 1:1 mapping of VMEbus interrupt level
+to CPU interrupt level. This implies that VMEbus devices must be
+set to interrupt at the correct level for that type of device.
+
+On the other boards, each VMEbus interrupt level can be mapped to a
+specific CPU interrupt level so the above restriction does not apply.
+However, note that the mapping can only be done once. Therefore it is
+not possible to have two VMEbus devices which require different CPU
+interrupt levels sharing the same VMEbus interrupt level.
+
+The mapping of device type to CPU interrupt levels is as follows:
+
+ CPU Irq Device Type
+ ~~~~~~~ ~~~~~~~~~~~
+ <Highest>
+ 6 - 7 Anything which generates an exceptional condition
+ which *must* be responded to immediately. For
+ example, a memory parity/uncorrectable data error.
+
+ 5 Reserved for the system clock/scheduler. Do not use.
+
+ 4 Serial port devices (rs232, rs422 etc).
+
+ 3 Network interfaces.
+
+ 2 Disk/Block device interfaces.
+
+ 1 Anything else.
+ <Lowest>
+
+
+
+Interrupt Vectors
+~~~~~~~~~~~~~~~~~
+
+NetBSD/mvme68k does not use or generate `auto-vectored' interrupts.
+
+All vectored interrupts up to and including vector 0x7f are reserved
+for use by onboard devices.
+
+VMEbus cards and IndustryPack modules are free to use vectors 0x80 -> 0xff.
+
+The onboard devices' vectors are as follows:
+
+MVME147:
+ 0x40 PCC: ACFAIL
+ 0x41 PCC: BERR
+ 0x42 PCC: ABORT Switch
+ 0x43 PCC: ZS Chips shared vector
+ 0x44 PCC: Lance Ethernet
+ 0x45 PCC: WD33C93 SCSI
+ 0x46 PCC: DMA
+ 0x47 PCC: Printer
+ 0x48 PCC: Timer1
+ 0x49 PCC: Timer2
+ 0x4a PCC: Soft Interrupt 1
+ 0x4b PCC: Soft Interrupt 2
+ 0x4c -> 0x4f PCC: <unused>
+
+
+MVME167/177:
+ 0x50 PCC2: Printer `BUSY'
+ 0x51 PCC2: Printer `Paper Empty'
+ 0x52 PCC2: Printer `Select'
+ 0x53 PCC2: Printer `Fault'
+ 0x54 PCC2: Printer `ACK'
+ 0x55 PCC2: SCSI
+ 0x56 PCC2: Ethernet `Error'
+ 0x57 PCC2: Ethernet
+ 0x58 PCC2: Timer 2
+ 0x59 PCC2: Timer 1
+ 0x5a PCC2: GPIO
+ 0x5b PCC2: <unused>
+ 0x5c PCC2: CD2401 Rx Exception
+ 0x5d PCC2: CD2401 Modem
+ 0x5e PCC2: CD2401 Tx
+ 0x5f PCC2: CD2401 Rx
+
+ 0x60 -> 0x67 VME2: <unused>
+ 0x68 VME2: Software Interrupt #0
+ 0x69 VME2: Software Interrupt #1
+ 0x6a VME2: Software Interrupt #2
+ 0x6b VME2: Software Interrupt #3
+ 0x6c VME2: Software Interrupt #4
+ 0x6d VME2: Software Interrupt #5
+ 0x6e VME2: Software Interrupt #6
+ 0x6f VME2: Software Interrupt #7
+ 0x70 VME2: GCSR Location Monitor #0
+ 0x71 VME2: GCSR Location Monitor #1
+ 0x72 VME2: GCSR SIG #0
+ 0x73 VME2: GCSR SIG #1
+ 0x74 VME2: GCSR SIG #2
+ 0x75 VME2: GCSR SIG #3
+ 0x76 VME2: DMA Controller
+ 0x77 VME2: VIA
+ 0x78 VME2: Tick Timer #1
+ 0x79 VME2: Tick Timer #2
+ 0x7a VME2: `IRQ1' feature
+ 0x7b VME2: Parity/ECC Error
+ 0x7c VME2: Master Write Post Error
+ 0x7d VME2: SYSFAIL
+ 0x7e VME2: ABORT Switch
+ 0x7f VME2: ACFAIL
+
+
+MVME162/172:
+ 0x40 IPACK: DMA_a
+ 0x41 IPACK: DMA_b
+ 0x42 IPACK: DMA_c
+ 0x43 IPACK: DMA_d
+ 0x44 IPACK: Programmable Clock
+
+ 0x50 -> 0x52 MC2: <unused>
+ 0x53 MC2: Timer 4
+ 0x54 MC2: Timer 3
+ 0x55 MC2: SCSI
+ 0x56 MC2: Ethernet `Error'
+ 0x57 MC2: Ethernet
+ 0x58 MC2: Timer 2
+ 0x59 MC2: Timer 1
+ 0x5a MC2: <unused>
+ 0x5b MC2: Parity/ECC Error
+ 0x5c MC2: ZS #1 (vector supplied by ZS chip)
+ 0x5d MC2: ZS #2 (vector supplied by ZS chip)
+ 0x5e MC2: Abort Switch
+ 0x5f MC2: <unused>
+
+ 0x60 -> 0x67 VME2: <unused>
+ 0x68 VME2: Software Interrupt #0
+ 0x69 VME2: Software Interrupt #1
+ 0x6a VME2: Software Interrupt #2
+ 0x6b VME2: Software Interrupt #3
+ 0x6c VME2: Software Interrupt #4
+ 0x6d VME2: Software Interrupt #5
+ 0x6e VME2: Software Interrupt #6
+ 0x6f VME2: Software Interrupt #7
+ 0x70 VME2: GCSR Location Monitor #0
+ 0x71 VME2: GCSR Location Monitor #1
+ 0x72 VME2: GCSR SIG #0
+ 0x73 VME2: GCSR SIG #1
+ 0x74 VME2: GCSR SIG #2
+ 0x75 VME2: GCSR SIG #3
+ 0x76 VME2: DMA Controller
+ 0x77 VME2: VIA
+ 0x78 VME2: Tick Timer #1
+ 0x79 VME2: Tick Timer #2
+ 0x7a VME2: `IRQ1' feature
+ 0x7b VME2: Parity/ECC Error
+ 0x7c VME2: Master Write Post Error
+ 0x7d VME2: SYSFAIL
+ 0x7e VME2: <unused>
+ 0x7f VME2: ACFAIL
diff -r feed81a9a012 -r e81fbf54f1e4 sys/arch/mvme68k/docs/TODO
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/mvme68k/docs/TODO Thu Dec 14 20:30:15 2000 +0000
@@ -0,0 +1,70 @@
+$NetBSD: TODO,v 1.1.2.2 2000/12/14 20:30:15 scw Exp $
+
+NetBSD/mvme68k's "ToDo" List (In no particular order)
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+These are `difficulty' rated on a scale of 1-10, where `1' is easy.
+
+
+1. Flesh out the "Memory Controller" (memc) driver (3)
+
+2. Enhance the PCC2/MC2 driver to support its "Memory Controller"
+ functionality on older MVME1x2 boards. (2)
+
+3. Support for "Industry Pack" modules (4)
+ (Need to come up with an MI interface for this, since various
+ other non-mvme68k SBCs have IP sites too)
+
+4. Switch over to the MI mk48txx TOD-chip driver (1)
+ (I already have most of this done)
+
+5. Support for the NVRAM part of the above chips (2)
+ (With a userland tool to read/write configuration details?)
+
+6. Related to #5, add code to locore.s to verify the configuration
+ area of NVRAM is kosher (using a checksum) before using any values
+ from it (2)
+ (eg. at this time, bogus Offboard RAM details cause crashes)
+
+7. Support for FLASH memory on MVME1x2 boards (3)
+ (Will probably need a userland tool of some sort)
+
+8. Add support for the in-kernel FP emulator, so we can run on MVME
+ boards with the MC680LCx0 CPU variant (4)
+ (Easy enough to do; slightly harder to test)
+
+9. Add "Bounce Buffers" to the VMEbus slave code (8)
+
+10. Support the MVME boards as a slave in A16 address space (8)
+ (To be useful, this really needs "Bounce Buffer" support)
+
+11. Enhance the MI VMEbus interface to provide generic GCSR access (6)
+ (Speak with Matthais Drochner <drochner%netbsd.org@localhost> about this one)
+
+12. Enhance the VMEChip/VMEChip2 drivers to support #11 (3)
+
+13. Fix the case where VMEbus RAM is mapped through a translated
+ address space on MVME boards with the VMEChip2 (2)
+
+14. Add/Flesh out evcnt(9) support where useful (1)
+
+15. The siop driver *badly* needs to be bus_space(9)'d, and made MI (5)
+ (Apparently, Manuel Bouyer (bouyer%netbsd.org@localhost) is working on this)
+
+16. The sbic driver *badly* needs re-written from scratch, and made MI (5)
+ (This will be done when Frank van der Linden <fvdl%netbsd.org@localhost>
+ imports the PC98 code into the tree; it comes with a very nice
+ wd33c93 driver ;-)
+
+17. Switch the install tools over to sysinst (3)
+ (Should be fairly easy, although sysinst doesn't do `tapes', so
+ there's a bunch of code to write)
+
+18. Use hardware-assisted softints (3)
+ (What to do on MVME1x2 boards with no VMEChip2?)
+
+19. Make the ZS driver *properly* MI (4)
+ (I already have patches for this. Unfortunately, it affects just
+ about every NetBSD architecture...)
+
+20. Implement the MD parts of __HAVE_SYSCALL_INTERN (2)
Home |
Main Index |
Thread Index |
Old Index