ARM: SPEAr3xx: Add device-tree support to SPEAr3xx architecture

This patch adds a generic target for SPEAr3xx machines that can be configured
via the device-tree. Currently the following devices are supported via the
devicetree:

- VIC interrupts
- PL011 UART
- PL061 GPIO
- PL110 CLCD
- SP805 WDT
- Synopsys DW I2C
- Synopsys DW ethernet
- ST FSMC-NAND
- ST SPEAR-SMI
- ST SPEAR-KEYBOARD
- ST SPEAR-RTC
- ARASAN SDHCI-SPEAR
- SPEAR-EHCI
- SPEAR-OHCI

Other peripheral devices will follow in later patches.

This also removes IO_ADDRESS macro and creates 16 MB static mappings instead of
4K for individual peripherals. This is done to have efficient TLB lookup for any
I/O windows that are located closely together. ioremap() on this range will
return this mapping only instead of creating another.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>

1 files changed, 7 insertions, 6 deletions

diff --git a/Documentation/arm/SPEAr/overview.txt b/Documentation/arm/SPEAr/overview.txt
index 253a35c6f78..28a9af953b9 100644
--- a/Documentation/arm/SPEAr/overview.txt
+++ b/Documentation/arm/SPEAr/overview.txt
@@ -17,14 +17,14 @@ Introduction
   SPEAr (Platform)
         - SPEAr3XX (3XX SOC series, based on ARM9)
                 - SPEAr300 (SOC)
-                        - SPEAr300_EVB (Evaluation Board)
+                        - SPEAr300 Evaluation Board
                 - SPEAr310 (SOC)
-                        - SPEAr310_EVB (Evaluation Board)
+                        - SPEAr310 Evaluation Board
                 - SPEAr320 (SOC)
-                        - SPEAr320_EVB (Evaluation Board)
+                        - SPEAr320 Evaluation Board
         - SPEAr6XX (6XX SOC series, based on ARM9)
                 - SPEAr600 (SOC)
-                        - SPEAr600_EVB (Evaluation Board)
+                        - SPEAr600 Evaluation Board
         - SPEAr13XX (13XX SOC series, based on ARM CORTEXA9)
                 - SPEAr1300 (SOC)
 
@@ -51,10 +51,11 @@ Introduction
   Common file for machines of spear3xx family is mach-spear3xx/spear3xx.c and for
   spear6xx is mach-spear6xx/spear6xx.c. mach-spear* also contain soc/machine
   specific files, like spear300.c, spear310.c, spear320.c and spear600.c.
-  mach-spear* also contains board specific files for each machine type.
+  mach-spear* doesn't contains board specific files as they fully support
+  Flattened Device Tree.
 
 
   Document Author
   ---------------
 
-  Viresh Kumar, (c) 2010 ST Microelectronics
+  Viresh Kumar <viresh.kumar@st.com>, (c) 2010-2012 ST Microelectronics