| 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_EVB (Evaluation Board) |
| - SPEAr310 (SOC) |
| - SPEAr310_EVB (Evaluation Board) |
| - SPEAr320 (SOC) |
| - SPEAr320_EVB (Evaluation Board) |
| - SPEAr6XX (6XX SOC series, based on ARM9) |
| - SPEAr600 (SOC) |
| - SPEAr600_EVB (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* also contains board specific files for each machine type. |
| |
| |
| Document Author |
| --------------- |
| |
| Viresh Kumar, (c) 2010 ST Microelectronics |
