| 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 SPEAr1310, | |
| SPEAr1340, SPEAr300, SPEAr310, SPEAr320 and SPEAr600 SOCs are supported. | |
| 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) | |
| - SPEAr1310 (SOC) | |
| - SPEAr1310 Evaluation Board | |
| - SPEAr1340 (SOC) | |
| - SPEAr1340 Evaluation Board | |
| Configuration | |
| ------------- | |
| A generic configuration is provided for each machine, and can be used as the | |
| default by | |
| make spear13xx_defconfig | |
| make spear3xx_defconfig | |
| make spear6xx_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, for | |
| spear6xx is mach-spear6xx/spear6xx.c and for spear13xx family is | |
| mach-spear13xx/spear13xx.c. mach-spear* also contain soc/machine specific | |
| files, like spear1310.c, spear1340.c 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 <vireshk@kernel.org>, (c) 2010-2012 ST Microelectronics |