Documentation/arm/SPEAr/overview.txt

   1                         SPEAr ARM Linux Overview
   2                         ==========================
   3
   4 Introduction
   5 ------------
   6
   7   SPEAr (Structured Processor Enhanced Architecture).
   8   weblink : http://www.st.com/spear
   9
  10   The ST Microelectronics SPEAr range of ARM9/CortexA9 System-on-Chip CPUs are
  11   supported by the 'spear' platform of ARM Linux. Currently SPEAr1310,
  12   SPEAr1340, SPEAr300, SPEAr310, SPEAr320 and SPEAr600 SOCs are supported.
  13
  14   Hierarchy in SPEAr is as follows:
  15
  16   SPEAr (Platform)
  17         - SPEAr3XX (3XX SOC series, based on ARM9)
  18                 - SPEAr300 (SOC)
  19                         - SPEAr300 Evaluation Board
  20                 - SPEAr310 (SOC)
  21                         - SPEAr310 Evaluation Board
  22                 - SPEAr320 (SOC)
  23                         - SPEAr320 Evaluation Board
  24         - SPEAr6XX (6XX SOC series, based on ARM9)
  25                 - SPEAr600 (SOC)
  26                         - SPEAr600 Evaluation Board
  27         - SPEAr13XX (13XX SOC series, based on ARM CORTEXA9)
  28                 - SPEAr1310 (SOC)
  29                         - SPEAr1310 Evaluation Board
  30                 - SPEAr1340 (SOC)
  31                         - SPEAr1340 Evaluation Board
  32
  33   Configuration
  34   -------------
  35
  36   A generic configuration is provided for each machine, and can be used as the
  37   default by
  38         make spear13xx_defconfig
  39         make spear3xx_defconfig
  40         make spear6xx_defconfig
  41
  42   Layout
  43   ------
  44
  45   The common files for multiple machine families (SPEAr3xx, SPEAr6xx and
  46   SPEAr13xx) are located in the platform code contained in arch/arm/plat-spear
  47   with headers in plat/.
  48
  49   Each machine series have a directory with name arch/arm/mach-spear followed by
  50   series name. Like mach-spear3xx, mach-spear6xx and mach-spear13xx.
  51
  52   Common file for machines of spear3xx family is mach-spear3xx/spear3xx.c, for
  53   spear6xx is mach-spear6xx/spear6xx.c and for spear13xx family is
  54   mach-spear13xx/spear13xx.c. mach-spear* also contain soc/machine specific
  55   files, like spear1310.c, spear1340.c spear300.c, spear310.c, spear320.c and
  56   spear600.c.  mach-spear* doesn't contains board specific files as they fully
  57   support Flattened Device Tree.
  58
  59
  60   Document Author
  61   ---------------
  62
  63   Viresh Kumar <viresh.linux@gmail.com>, (c) 2010-2012 ST Microelectronics