2.6.9-final

 Documentation

diff -Nru a/Documentation/IPMI.txt b/Documentation/IPMI.txt
--- a/Documentation/IPMI.txt   2004-10-15 20:04:39 -07:00
+++ b/Documentation/IPMI.txt   2004-10-15 20:04:39 -07:00
@@ -340,6 +340,8 @@
   modprobe ipmi_si.o type=<type1>,<type2>....
        ports=<port1>,<port2>... addrs=<addr1>,<addr2>...
        irqs=<irq1>,<irq2>... trydefaults=[0|1]
+       regspacings=<sp1>,<sp2>,... regsizes=<size1>,<size2>,...
+       regshifts=<shift1>,<shift2>,...
 
 Each of these except si_trydefaults is a list, the first item for the
 first interface, second item for the second interface, etc.
@@ -361,12 +363,35 @@
 any interfaces specified by ACPE are tried.  By default, the driver
 tries it, set this value to zero to turn this off.
 
+The next three parameters have to do with register layout.  The
+registers used by the interfaces may not appear at successive
+locations and they may not be in 8-bit registers.  These parameters
+allow the layout of the data in the registers to be more precisely
+specified.
+
+The regspacings parameter give the number of bytes between successive
+register start addresses.  For instance, if the regspacing is set to 4
+and the start address is 0xca2, then the address for the second
+register would be 0xca6.  This defaults to 1.
+
+The regsizes parameter gives the size of a register, in bytes.  The
+data used by IPMI is 8-bits wide, but it may be inside a larger
+register.  This parameter allows the read and write type to specified.
+It may be 1, 2, 4, or 8.  The default is 1.
+
+Since the register size may be larger than 32 bits, the IPMI data may not
+be in the lower 8 bits.  The regshifts parameter give the amount to shift
+the data to get to the actual IPMI data.
+
 When compiled into the kernel, the addresses can be specified on the
 kernel command line as:
 
   ipmi_si.type=<type1>,<type2>...
        ipmi_si.ports=<port1>,<port2>... ipmi_si.addrs=<addr1>,<addr2>...
        ipmi_si.irqs=<irq1>,<irq2>... ipmi_si.trydefaults=[0|1]
+       ipmi_si.regspacings=<sp1>,<sp2>,...
+       ipmi_si.regsizes=<size1>,<size2>,...
+       ipmi_si.regshifts=<shift1>,<shift2>,...
 
 It works the same as the module parameters of the same names.
 
@@ -496,3 +521,8 @@
 Note that if you use the NMI preaction for the watchdog, you MUST
 NOT use nmi watchdog mode 1.  If you use the NMI watchdog, you
 must use mode 2.
+
+Once you open the watchdog timer, you must write a 'V' character to the
+device to close it, or the timer will not stop.  This is a new semantic
+for the driver, but makes it consistent with the rest of the watchdog
+drivers in Linux.