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- SPEAr ARM Linux Overview
- ==========================
- Introduction
- ------------
- SPEAr (Structured Processor Enhanced Architecture).
- weblink : http://www.st.com/spear
- The ST Microelectronics SPEAr range of ARM9/CortexA9 System-on-Chip CPUs are
- supported by the 'spear' platform of ARM Linux. Currently SPEAr300,
- SPEAr310, SPEAr320 and SPEAr600 SOCs are supported. Support for the SPEAr13XX
- series is in progress.
- Hierarchy in SPEAr is as follows:
- SPEAr (Platform)
- - SPEAr3XX (3XX SOC series, based on ARM9)
- - SPEAr300 (SOC)
- - SPEAr300 Evaluation Board
- - SPEAr310 (SOC)
- - SPEAr310 Evaluation Board
- - SPEAr320 (SOC)
- - SPEAr320 Evaluation Board
- - SPEAr6XX (6XX SOC series, based on ARM9)
- - SPEAr600 (SOC)
- - SPEAr600 Evaluation Board
- - SPEAr13XX (13XX SOC series, based on ARM CORTEXA9)
- - SPEAr1300 (SOC)
- Configuration
- -------------
- A generic configuration is provided for each machine, and can be used as the
- default by
- make spear600_defconfig
- make spear300_defconfig
- make spear310_defconfig
- make spear320_defconfig
- Layout
- ------
- The common files for multiple machine families (SPEAr3XX, SPEAr6XX and
- SPEAr13XX) are located in the platform code contained in arch/arm/plat-spear
- with headers in plat/.
- Each machine series have a directory with name arch/arm/mach-spear followed by
- series name. Like mach-spear3xx, mach-spear6xx and mach-spear13xx.
- Common file for machines of spear3xx family is mach-spear3xx/spear3xx.c and for
- spear6xx is mach-spear6xx/spear6xx.c. mach-spear* also contain soc/machine
- specific files, like spear300.c, spear310.c, spear320.c and spear600.c.
- mach-spear* doesn't contains board specific files as they fully support
- Flattened Device Tree.
- Document Author
- ---------------
- Viresh Kumar <viresh.kumar@st.com>, (c) 2010-2012 ST Microelectronics
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