2010-04-01 11:31:21 +00:00
|
|
|
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
|
2012-04-20 17:09:48 +00:00
|
|
|
supported by the 'spear' platform of ARM Linux. Currently SPEAr1310,
|
|
|
|
|
SPEAr1340, SPEAr300, SPEAr310, SPEAr320 and SPEAr600 SOCs are supported.
|
2010-04-01 11:31:21 +00:00
|
|
|
|
|
|
|
|
Hierarchy in SPEAr is as follows:
|
|
|
|
|
|
|
|
|
|
SPEAr (Platform)
|
|
|
|
|
- SPEAr3XX (3XX SOC series, based on ARM9)
|
|
|
|
|
- SPEAr300 (SOC)
|
2012-03-22 18:47:43 +00:00
|
|
|
- SPEAr300 Evaluation Board
|
2010-04-01 11:31:21 +00:00
|
|
|
- SPEAr310 (SOC)
|
2012-03-22 18:47:43 +00:00
|
|
|
- SPEAr310 Evaluation Board
|
2010-04-01 11:31:21 +00:00
|
|
|
- SPEAr320 (SOC)
|
2012-03-22 18:47:43 +00:00
|
|
|
- SPEAr320 Evaluation Board
|
2010-04-01 11:31:21 +00:00
|
|
|
- SPEAr6XX (6XX SOC series, based on ARM9)
|
|
|
|
|
- SPEAr600 (SOC)
|
2012-03-22 18:47:43 +00:00
|
|
|
- SPEAr600 Evaluation Board
|
2010-04-01 11:31:21 +00:00
|
|
|
- SPEAr13XX (13XX SOC series, based on ARM CORTEXA9)
|
2012-04-20 17:09:48 +00:00
|
|
|
- SPEAr1310 (SOC)
|
|
|
|
|
- SPEAr1310 Evaluation Board
|
|
|
|
|
- SPEAr1340 (SOC)
|
|
|
|
|
- SPEAr1340 Evaluation Board
|
2010-04-01 11:31:21 +00:00
|
|
|
|
|
|
|
|
Configuration
|
|
|
|
|
-------------
|
|
|
|
|
|
|
|
|
|
A generic configuration is provided for each machine, and can be used as the
|
|
|
|
|
default by
|
2012-04-20 17:09:48 +00:00
|
|
|
make spear13xx_defconfig
|
|
|
|
|
make spear3xx_defconfig
|
|
|
|
|
make spear6xx_defconfig
|
2010-04-01 11:31:21 +00:00
|
|
|
|
|
|
|
|
Layout
|
|
|
|
|
------
|
|
|
|
|
|
2012-04-20 17:09:48 +00:00
|
|
|
The common files for multiple machine families (SPEAr3xx, SPEAr6xx and
|
|
|
|
|
SPEAr13xx) are located in the platform code contained in arch/arm/plat-spear
|
2010-04-01 11:31:21 +00:00
|
|
|
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.
|
|
|
|
|
|
2012-04-20 17:09:48 +00:00
|
|
|
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.
|
2010-04-01 11:31:21 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
Document Author
|
|
|
|
|
---------------
|
|
|
|
|
|
2012-06-20 19:53:02 +00:00
|
|
|
Viresh Kumar <viresh.linux@gmail.com>, (c) 2010-2012 ST Microelectronics
|
