patch-2.4.19 linux-2.4.19/arch/ia64/sn/fprom/README

• Lines: 86
• Date: Wed Dec 31 16:00:00 1969
• Orig file: linux-2.4.18/arch/ia64/sn/fprom/README
• Orig date: Thu Jan 4 13:00:15 2001

diff -urN linux-2.4.18/arch/ia64/sn/fprom/README linux-2.4.19/arch/ia64/sn/fprom/README
@@ -1,85 +0,0 @@
-This directory contains the files required to build
-the fake PROM image that is currently being used to
-boot IA64 kernels running under the SGI Medusa kernel.
-
-The FPROM currently provides the following functions:
-
-	- PAL emulation for all PAL calls we've made so far.
-	- SAL emulation for all SAL calls we've made so far.
-	- EFI emulation for all EFI calls we've made so far.
-	- builds the "ia64_bootparam" structure that is
-	  passed to the kernel from SAL. This structure 
-	  shows the cpu & memory configurations.
-	- supports medusa boottime options for changing
-	  the number of cpus present
-	- supports medusa boottime options for changing
-	  the memory configuration.
-
-
-
-At some point, this fake PROM will be replaced by the
-real PROM.
-
-
-
-
-To build a fake PROM, cd to this directory & type:
-
-	make
-
-This will (or should) build a fake PROM named "fprom".
-
-
-
-
-Use this fprom image when booting the Medusa simulator. The
-control file used to boot Medusa should include the 
-following lines:
-
-	load fprom
-	load vmlinux
-	sr pc 0x100000
-	sr g 9 <address of kernel _start function> #(currently 0xe000000000520000)
-
-NOTE: There is a script "runsim" in this directory that can be used to
-simplify setting up an environment for running under Medusa.
-
-
-
-
-The following parameters may be passed to the fake PROM to
-control the PAL/SAL/EFI parameters passed to the kernel:
-
-	GR[8] = # of cpus
-	GR[9] = address of primary entry point into the kernel
-	GR[20] = memory configuration for node 0
-	GR[21] = memory configuration for node 1
-	GR[22] = memory configuration for node 2
-	GR[23] = memory configuration for node 3
-
-
-Registers GR[20] - GR[23] contain information to specify the
-amount of memory present on nodes 0-3.
-
-  - if nothing is specified (all registers are 0), the configuration
-    defaults to 8 MB on node 0.
-
-  - a mem config entry for node N is passed in GR[20+N]
-
-  - a mem config entry consists of 8 hex digits. Each digit gives the
-    amount of physical memory available on the node starting at
-    1GB*<dn>, where dn is the digit number. The amount of memory
-    is 8MB*2**<d>. (If <d> = 0, the memory size is 0).
-
-    SN1 doesnt support dimms this small but small memory systems 
-    boot faster on Medusa.
-
-
-
-An example helps a lot. The following specifies that node 0 has
-physical memory 0 to 8MB and 1GB to 1GB+32MB, and that node 1 has
-64MB starting at address 0 of the node which is 8GB.
-
-      gr[20] = 0x21           # 0 to 8MB, 1GB to 1GB+32MB
-      gr[21] = 0x4            # 8GB to 8GB+64MB
-