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1========================2SPEAr ARM Linux Overview3========================4 5Introduction6------------7 8 SPEAr (Structured Processor Enhanced Architecture).9 weblink : http://www.st.com/spear10 11 The ST Microelectronics SPEAr range of ARM9/CortexA9 System-on-Chip CPUs are12 supported by the 'spear' platform of ARM Linux. Currently SPEAr1310,13 SPEAr1340, SPEAr300, SPEAr310, SPEAr320 and SPEAr600 SOCs are supported.14 15 Hierarchy in SPEAr is as follows:16 17 SPEAr (Platform)18 19 - SPEAr3XX (3XX SOC series, based on ARM9)20 - SPEAr300 (SOC)21 - SPEAr300 Evaluation Board22 - SPEAr310 (SOC)23 - SPEAr310 Evaluation Board24 - SPEAr320 (SOC)25 - SPEAr320 Evaluation Board26 - SPEAr6XX (6XX SOC series, based on ARM9)27 - SPEAr600 (SOC)28 - SPEAr600 Evaluation Board29 - SPEAr13XX (13XX SOC series, based on ARM CORTEXA9)30 - SPEAr1310 (SOC)31 - SPEAr1310 Evaluation Board32 - SPEAr1340 (SOC)33 - SPEAr1340 Evaluation Board34 35Configuration36-------------37 38 A generic configuration is provided for each machine, and can be used as the39 default by::40 41 make spear13xx_defconfig42 make spear3xx_defconfig43 make spear6xx_defconfig44 45Layout46------47 48 The common files for multiple machine families (SPEAr3xx, SPEAr6xx and49 SPEAr13xx) are located in the platform code contained in arch/arm/plat-spear50 with headers in plat/.51 52 Each machine series have a directory with name arch/arm/mach-spear followed by53 series name. Like mach-spear3xx, mach-spear6xx and mach-spear13xx.54 55 Common file for machines of spear3xx family is mach-spear3xx/spear3xx.c, for56 spear6xx is mach-spear6xx/spear6xx.c and for spear13xx family is57 mach-spear13xx/spear13xx.c. mach-spear* also contain soc/machine specific58 files, like spear1310.c, spear1340.c spear300.c, spear310.c, spear320.c and59 spear600.c. mach-spear* doesn't contains board specific files as they fully60 support Flattened Device Tree.61 62 63Document Author64---------------65 66 Viresh Kumar <vireshk@kernel.org>, (c) 2010-2012 ST Microelectronics67