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authorJoel Sherrill <joel.sherrill@OARcorp.com>2006-08-23 19:11:14 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2006-08-23 19:11:14 +0000
commit83fb86f32b73942be758c22423c0bfe506fd4ff6 (patch)
treed51a136781eaccf67bfb2addfbe5330d9aed4791 /doc/supplements/powerpc/bsp.t
parent2006-08-23 Joel Sherrill <joel@OARcorp.com> (diff)
downloadrtems-83fb86f32b73942be758c22423c0bfe506fd4ff6.tar.bz2
2006-08-23 Joel Sherrill <joel@OARcorp.com>
* Makefile.am, configure.ac, FAQ/stamp-vti, FAQ/version.texi, common/cpright.texi: Merging CPU Supplements into a single document. As part of this removed the obsolete and impossible to maintain size and timing information. * cpu_supplement/.cvsignore, cpu_supplement/Makefile.am, cpu_supplement/arm.t, cpu_supplement/i386.t, cpu_supplement/m68k.t, cpu_supplement/mips.t, cpu_supplement/powerpc.t, cpu_supplement/preface.texi, cpu_supplement/sh.t, cpu_supplement/sparc.t, cpu_supplement/tic4x.t: New files. * supplements/.cvsignore, supplements/Makefile.am, supplements/supplement.am, supplements/arm/.cvsignore, supplements/arm/BSP_TIMES, supplements/arm/ChangeLog, supplements/arm/Makefile.am, supplements/arm/arm.texi, supplements/arm/bsp.t, supplements/arm/callconv.t, supplements/arm/cpumodel.t, supplements/arm/cputable.t, supplements/arm/fatalerr.t, supplements/arm/intr_NOTIMES.t, supplements/arm/memmodel.t, supplements/arm/preface.texi, supplements/arm/timeBSP.t, supplements/c4x/.cvsignore, supplements/c4x/BSP_TIMES, supplements/c4x/ChangeLog, supplements/c4x/Makefile.am, supplements/c4x/bsp.t, supplements/c4x/c4x.texi, supplements/c4x/callconv.t, supplements/c4x/cpumodel.t, supplements/c4x/cputable.t, supplements/c4x/fatalerr.t, supplements/c4x/intr_NOTIMES.t, supplements/c4x/memmodel.t, supplements/c4x/preface.texi, supplements/c4x/timeBSP.t, supplements/i386/.cvsignore, supplements/i386/ChangeLog, supplements/i386/FORCE386_TIMES, supplements/i386/Makefile.am, supplements/i386/bsp.t, supplements/i386/callconv.t, supplements/i386/cpumodel.t, supplements/i386/cputable.t, supplements/i386/fatalerr.t, supplements/i386/i386.texi, supplements/i386/intr_NOTIMES.t, supplements/i386/memmodel.t, supplements/i386/preface.texi, supplements/i386/timeFORCE386.t, supplements/m68k/.cvsignore, supplements/m68k/ChangeLog, supplements/m68k/MVME136_TIMES, supplements/m68k/Makefile.am, supplements/m68k/bsp.t, supplements/m68k/callconv.t, supplements/m68k/cpumodel.t, supplements/m68k/cputable.t, supplements/m68k/fatalerr.t, supplements/m68k/intr_NOTIMES.t, supplements/m68k/m68k.texi, supplements/m68k/memmodel.t, supplements/m68k/preface.texi, supplements/m68k/timeMVME136.t, supplements/m68k/timedata.t, supplements/mips/.cvsignore, supplements/mips/BSP_TIMES, supplements/mips/ChangeLog, supplements/mips/Makefile.am, supplements/mips/bsp.t, supplements/mips/callconv.t, supplements/mips/cpumodel.t, supplements/mips/cputable.t, supplements/mips/fatalerr.t, supplements/mips/intr_NOTIMES.t, supplements/mips/memmodel.t, supplements/mips/mips.texi, supplements/mips/preface.texi, supplements/mips/timeBSP.t, supplements/powerpc/.cvsignore, supplements/powerpc/ChangeLog, supplements/powerpc/DMV177_TIMES, supplements/powerpc/Makefile.am, supplements/powerpc/PSIM_TIMES, supplements/powerpc/bsp.t, supplements/powerpc/callconv.t, supplements/powerpc/cpumodel.t, supplements/powerpc/cputable.t, supplements/powerpc/fatalerr.t, supplements/powerpc/intr_NOTIMES.t, supplements/powerpc/memmodel.t, supplements/powerpc/powerpc.texi, supplements/powerpc/preface.texi, supplements/powerpc/timeDMV177.t, supplements/powerpc/timePSIM.t, supplements/sh/.cvsignore, supplements/sh/BSP_TIMES, supplements/sh/ChangeLog, supplements/sh/Makefile.am, supplements/sh/bsp.t, supplements/sh/callconv.t, supplements/sh/cpumodel.t, supplements/sh/cputable.t, supplements/sh/fatalerr.t, supplements/sh/intr_NOTIMES.t, supplements/sh/memmodel.t, supplements/sh/preface.texi, supplements/sh/sh.texi, supplements/sh/timeBSP.t, supplements/sparc/.cvsignore, supplements/sparc/ChangeLog, supplements/sparc/ERC32_TIMES, supplements/sparc/Makefile.am, supplements/sparc/bsp.t, supplements/sparc/callconv.t, supplements/sparc/cpumodel.t, supplements/sparc/cputable.t, supplements/sparc/fatalerr.t, supplements/sparc/intr_NOTIMES.t, supplements/sparc/memmodel.t, supplements/sparc/preface.texi, supplements/sparc/sparc.texi, supplements/sparc/timeERC32.t, supplements/template/.cvsignore, supplements/template/BSP_TIMES, supplements/template/ChangeLog, supplements/template/Makefile.am, supplements/template/bsp.t, supplements/template/callconv.t, supplements/template/cpumodel.t, supplements/template/cputable.t, supplements/template/fatalerr.t, supplements/template/intr_NOTIMES.t, supplements/template/memmodel.t, supplements/template/preface.texi, supplements/template/template.texi, supplements/template/timeBSP.t: Removed.
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-@c
-@c COPYRIGHT (c) 1988-2002.
-@c On-Line Applications Research Corporation (OAR).
-@c All rights reserved.
-@c
-@c $Id$
-@c
-
-@chapter Board Support Packages
-
-@section Introduction
-
-An RTEMS Board Support Package (BSP) must be designed
-to support a particular processor and target board combination.
-This chapter presents a discussion of PowerPC specific BSP issues.
-For more information on developing a BSP, refer to the chapter
-titled Board Support Packages in the RTEMS
-Applications User's Guide.
-
-@section System Reset
-
-An RTEMS based application is initiated or
-re-initiated when the PowerPC processor is reset. The PowerPC
-architecture defines a Reset Exception, but leaves the
-details of the CPU state as implementation specific. Please
-refer to the User's Manual for the CPU model in question.
-
-In general, at power-up the PowerPC begin execution at address
-0xFFF00100 in supervisor mode with all exceptions disabled. For
-soft resets, the CPU will vector to either 0xFFF00100 or 0x00000100
-depending upon the setting of the Exception Prefix bit in the MSR.
-If during a soft reset, a Machine Check Exception occurs, then the
-CPU may execute a hard reset.
-
-@section Processor Initialization
-
-It is the responsibility of the application's
-initialization code to initialize the CPU and board
-to a quiescent state before invoking the @code{rtems_initialize_executive}
-directive. It is recommended that the BSP utilize the @code{predriver_hook}
-to install default handlers for all exceptions. These default handlers
-may be overwritten as various device drivers and subsystems install
-their own exception handlers. Upon completion of RTEMS executive
-initialization, all interrupts are enabled.
-
-If this PowerPC implementation supports on-chip caching
-and this is to be utilized, then it should be enabled during the
-reset application initialization code. On-chip caching has been
-observed to prevent some emulators from working properly, so it
-may be necessary to run with caching disabled to use these emulators.
-
-In addition to the requirements described in the
-@b{Board Support Packages} chapter of the @b{@value{LANGUAGE}
-Applications User's Manual} for the reset code
-which is executed before the call to @code{rtems_initialize_executive},
-the PowrePC version has the following specific requirements:
-
-@itemize @bullet
-@item Must leave the PR bit of the Machine State Register (MSR) set
-to 0 so the PowerPC remains in the supervisor state.
-
-@item Must set stack pointer (sp or r1) such that a minimum stack
-size of MINIMUM_STACK_SIZE bytes is provided for the
-@code{rtems_initialize_executive} directive.
-
-@item Must disable all external interrupts (i.e. clear the EI (EE)
-bit of the machine state register).
-
-@item Must enable traps so window overflow and underflow
-conditions can be properly handled.
-
-@item Must initialize the PowerPC's initial Exception Table with default
-handlers.
-
-@end itemize
-