summaryrefslogtreecommitdiffstats
path: root/kernel/Documentation/arm/SPEAr
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/Documentation/arm/SPEAr')
-rw-r--r--kernel/Documentation/arm/SPEAr/overview.txt63
1 files changed, 63 insertions, 0 deletions
diff --git a/kernel/Documentation/arm/SPEAr/overview.txt b/kernel/Documentation/arm/SPEAr/overview.txt
new file mode 100644
index 000000000..65610bf52
--- /dev/null
+++ b/kernel/Documentation/arm/SPEAr/overview.txt
@@ -0,0 +1,63 @@
+ 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 <viresh.linux@gmail.com>, (c) 2010-2012 ST Microelectronics