| ======================== |
| 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 |
