From 64c14b5dcf31d880b2e7ae2e77535c4ba1ea12d6 Mon Sep 17 00:00:00 2001
From: Patrick Georgi <patrick@georgi.software>
Date: Sat, 5 Oct 2019 12:32:27 -0700
Subject: Documentation/RFC: Drop obsolete doc

The format was retired 10 years ago when we moved to the new build
system, kconfig and sconfig. Retire the doc as well.

Change-Id: Ica1c353a80d411845b92038521d85ad5f3d359bc
Signed-off-by: Patrick Georgi <patrick@georgi.software>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35818
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
---
 Documentation/RFC/config.tex | 290 -------------------------------------------
 1 file changed, 290 deletions(-)
 delete mode 100644 Documentation/RFC/config.tex

(limited to 'Documentation/RFC/config.tex')

diff --git a/Documentation/RFC/config.tex b/Documentation/RFC/config.tex
deleted file mode 100644
index c11e62219d..0000000000
--- a/Documentation/RFC/config.tex
+++ /dev/null
@@ -1,290 +0,0 @@
-		New config language for LinuxBIOS
-
-\begin{abstract}
-We describe the new configuration language for LinuxBIOS.
-\end{abstract}
-
-\section{Scope}
-This document defines the new configuration language for LinuxBIOS.
-
-\section{Goals}
-The goals of the new language are these:
-\begin{itemize}
-\item Simplified Makefiles so people can see what is set
-\item Move from the regular-expression-based language to something
-a bit more comprehensible and flexible
-\item make the specification easier for people to use and understand
-\item allow unique register-set-specifiers for each chip
-\item allow generic register-set-specifiers for each chip
-\item generate static initialization code, as needed, for the
-specifiers.
-\end{itemize}
-
-\section{Language}
-Here is the new language. It is very similar to the old one, differing
-in only a few respects. It borrows heavily from Greg Watson's suggestions.
-
-I am presenting it in a pseudo-BNF in the hopes it will be easier. Things
-in '' are keywords; things in ``'' are strings in the actual text.
-\begin{verbatim}
-#exprs are composed of factor or factor + factor etc.
-expr ::= factor ( ``+'' factor | ``-'' factor | )*
-#factors are term or term * term or term / term or ...
-factor ::=  term ( ``*'' term | ``/'' term | ... )*
-#
-unary-op ::= ``!'' ID
-# term is a number, hexnumber, ID, unary-op, or a full-blown expression
-term ::= NUM | XNUM | ID | unary-op | ``(`` expr ``)''
-
-# Option command. Can be an expression or quote-string.
-# Options are used in the config tool itself (in expressions and 'if')
-# and are also passed to the C compiler when building linuxbios.
-# It is an error to have two option commands in a file.
-# It is an error to have an option command after the ID has been used
-#   in an expression (i.e. 'set after used' is an error)
-option ::= 'option' ID '=' (``value'' | term)
-
-# Default command. The ID is set to this value if no option command
-# is scanned.
-# Multiple defaults for an ID will produce warning, but not errors.
-# It is OK to scan a default command after use of an ID.
-# Options always over-ride defaults.
-default ::= 'default' ID '=' (``value'' | term)
-
-# the mainboard, southbridge, northbridge commands
-# cause sourcing of Config.lb files as in the old config tool
-# as parts are sourced, a device tree is built. The structure
-# of the tree is determined by the structure of the components
-# as they are specified. To attach a superio to a southbridge, for
-# example, one would do this:
-# southbridge acer/5432
-#   superio nsc/123
-#   end
-# end
-# the tool generates static initializers for this hierarchy.
-
-# add C code to the current component (motherboard, etc. )
-# to initialise the component-INDEPENDENT structure members
-init ::= 'init' ``CODE''
-
-# add C code to the current component (motherboard, etc. )
-# to initialise the component-DEPENDENT structure members
-register ::= 'register' ``CODE''
-
-
-# mainboard command
-# statements in this block will set variables controlling the mainboard,
-# and will also place components (northbridge etc.) in the device tree
-# under this mainboard
-mainboard ::= 'mainboard' PATH (statements)* 'end'
-
-# standard linuxbios commands
-southbridge ::= 'southbridge' PATH (statemnts)* 'end'
-northbridge ::= 'northbridge' PATH (statemnts)* 'end'
-superio ::= 'superio PATH (statemnts)* 'end'
-cpu ::= 'cpu' PATH (statemnts)* 'end'
-arch ::= 'arch' PATH (statemnts)* 'end'
-
-# files for building linuxbios
-# include a file in crt0.S
-mainboardinit ::= 'mainboardinit' PATH
-
-# object file
-object ::= 'object' PATH
-# driver objects are just built into the image in a different way
-driver ::= 'driver' PATH
-
-# Use the Config.lb file in the PATH
-dir ::= 'dir' PATH
-
-# add a file to the set of ldscript files
-ldscript ::= 'ldscript' PATH
-
-# dependencies or actions for the makerule command
-dep ::= 'dep' ``dependency-string''
-act ::= 'act' ``actions''
-depsacts ::= (dep | act)*
-# set up a makerule
-#
-makerule ::= 'makerule' PATH depsacts
-
-#defines for use in makefiles only
-# note usable in the config tool, not passed to cc
-makedefine ::= 'makedefine' ``RAWTEXT''
-
-# add an action to an existing make rule
-addaction ::= 'addaction' PATH ``ACTION''
-
-# statements
-statement ::=
-		  option
-		| default
-		| cpu
-		| arch
-		| northbridge
-		| southbridge
-		| superio
-		| object
-		| driver
-		| mainboardinit
-		| makerule
-		| makedefine
-		| addaction
-		| init
-		| register
-		| iif
-		| dir
-		| ldscript
-
-statements ::= (statement)*
-
-# target directory specification
-target ::= 'target' PATH
-
-# and the whole thing
-board ::= target (option)* mainboard
-
-\end{verbatim}
-
-\subsubsection{Command definitions}
-\subsubsubsection{option}
-\subsubsubsection{default}
-\subsubsubsection{cpu}
-\subsubsubsection{arch}
-\subsubsubsection{northbridge}
-\subsubsubsection{southbridge}
-\subsubsubsection{superio}
-\subsubsubsection{object}
-\subsubsubsection{driver}
-\subsubsubsection{mainboardinit}
-\subsubsubsection{makerule}
-\subsubsubsection{makedefine}
-\subsubsubsection{addaction}
-\subsubsubsection{init}
-\subsubsubsection{register}
-\subsubsubsection{iif}
-\subsubsubsection{dir}
-\subsubsubsection{ldscript}
-
-
-A sample file:
-
-\begin{verbatim}
-target x
-
-# over-ride the default ROM size in the mainboard file
-option CONFIG_ROM_SIZE=1024*1024
-mainboard amd/solo
-end
-
-\end{verbatim}
-
-Sample mainboard file
-\begin{verbatim}
-#
-###
-### Set all of the defaults for an x86 architecture
-###
-arch i386 end
-cpu k8 end
-#
-option CONFIG_DEBUG=1
-default CONFIG_USE_FALLBACK_IMAGE=1
-option A=(1+2)
-option B=0xa
-#
-###
-### Build our 16 bit and 32 bit linuxBIOS entry code
-###
-mainboardinit cpu/i386/entry16.inc
-mainboardinit cpu/i386/entry32.inc
-ldscript cpu/i386/entry16.lds
-ldscript cpu/i386/entry32.lds
-#
-###
-### Build our reset vector (This is where linuxBIOS is entered)
-###
-if CONFIG_USE_FALLBACK_IMAGE
-	mainboardinit cpu/i386/reset16.inc
-	ldscript cpu/i386/reset16.lds
-else
-	mainboardinit cpu/i386/reset32.inc
-	ldscript cpu/i386/reset32.lds
-end
-.
-.
-.
-if CONFIG_USE_FALLBACK_IMAGE mainboardinit arch/i386/lib/noop_failover.inc  end
-#
-###
-### Romcc output
-###
-#makerule ./failover.E dep "$(CONFIG_MAINBOARD)/failover.c" act "$(CPP) -I$(TOP)/src $(CPPFLAGS) $(CONFIG_MAINBOARD)/failover.c > ./failever.E"
-#makerule ./failover.inc dep "./romcc ./failover.E" act "./romcc -O ./failover.E > failover.inc"
-#mainboardinit ./failover.inc
-makerule ./auto.E dep "$(CONFIG_MAINBOARD)/auto.c" act "$(CPP) -I$(TOP)/src -$(ROMCCPPFLAGS) $(CPPFLAGS) $(CONFIG_MAINBOARD)/auto.c > ./auto.E"
-makerule ./auto.inc dep "./romcc ./auto.E" act "./romcc -O ./auto.E > auto.inc"
-mainboardinit ./auto.inc
-#
-###
-### Include the secondary Configuration files
-###
-northbridge amd/amdk8
-end
-southbridge amd/amd8111
-end
-#mainboardinit arch/i386/smp/secondary.inc
-superio nsc/pc87360
-	register "com1={1} com2={0} floppy=1 lpt=1 keyboard=1"
-end
-dir /pc80
-##dir /src/superio/winbond/w83627hf
-cpu p5 end
-cpu p6 end
-cpu k7 end
-cpu k8 end
-#
-###
-### Build the objects we have code for in this directory.
-###
-##object mainboard.o
-driver mainboard.o
-object static_devices.o
-if CONFIG_HAVE_MP_TABLE object mptable.o end
-if CONFIG_HAVE_PIRQ_TABLE object irq_tables.o end
-### Location of the DIMM EEPROMS on the SMBUS
-### This is fixed into a narrow range by the DIMM package standard.
-###
-option SMBUS_MEM_DEVICE_START=(0xa << 3)
-option SMBUS_MEM_DEVICE_END=(SMBUS_MEM_DEVICE_START +1)
-option SMBUS_MEM_DEVICE_INC=1
-#
-### The linuxBIOS bootloader.
-###
-option CONFIG_PAYLOAD_SIZE            = (CONFIG_ROM_SECTION_SIZE - CONFIG_ROM_IMAGE_SIZE)
-option CONFIG_ROM_PAYLOAD_START = (0xffffffff - CONFIG_ROM_SIZE + CONFIG_ROM_SECTION_OFFSET + 1)
-#
-
-\end{verbatim}
-
-I've found the output of the new tool to be easier to
-handle. Makefile.settings looks like this, for example:
-\begin{verbatim}
-TOP:=/home/rminnich/src/yapps2/freebios2
-TARGET_DIR:=x
-export CONFIG_MAINBOARD:=/home/rminnich/src/yapps2/freebios2/src/mainboard/amd/solo
-export CONFIG_ARCH:=i386
-export CONFIG_RAMBASE:=0x4000
-export CONFIG_ROM_IMAGE_SIZE:=65535
-export CONFIG_PAYLOAD_SIZE:=131073
-export CONFIG_MAX_CPUS:=1
-export CONFIG_HEAP_SIZE:=8192
-export CONFIG_STACK_SIZE:=8192
-export CONFIG_MEMORY_HOLE:=0
-export COREBOOT_VERSION:=1.1.0
-export CC:=$(CONFIG_CROSS_COMPILE)gcc
-
-\end{verbatim}
-
-In other words, instead of expressions, we see the values. It's easier to
-deal with.
-- 
cgit v1.2.3

