[ARM] 3960/1: AT91: Final SAM9 intergration patches.

This patch includes a number of small changes for integrating the
AT91SAM9261 and AT91SAM0260 support.

      * Can only select support for one AT91 processor at a time.
      * Remove most of the remaining static memory mapping for the
        AT91RM9200.
      * Reserve 1Mb of memory below the IO for mapping the internal SRAM
        and any custom board-specific devices (ie, FPGA).
      * The SAM9260 has more serial ports, so increase the maximum to 7.
      * Define the standard chipselect addresses, and define other
        addresses relative to those.
      * CLOCK_TICK_RATE is different on the SAM926x's.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-at91rm9200/Kconfig b/arch/arm/mach-at91rm9200/Kconfig
index 2f85e86..8d44326 100644
--- a/arch/arm/mach-at91rm9200/Kconfig
+++ b/arch/arm/mach-at91rm9200/Kconfig
@@ -2,7 +2,8 @@
 
 menu "Atmel AT91 System-on-Chip"
 
-comment "Atmel AT91 Processors"
+choice
+	prompt "Atmel AT91 Processor"
 
 config ARCH_AT91RM9200
 	bool "AT91RM9200"
@@ -13,6 +14,8 @@
 config ARCH_AT91SAM9261
 	bool "AT91SAM9261"
 
+endchoice
+
 # ----------------------------------------------------------
 
 if ARCH_AT91RM9200
@@ -33,7 +36,6 @@
 	  Select this if you are using Atmel's AT91RM9200-DK Development board.
 	  (Discontinued)
 
-
 config MACH_AT91RM9200EK
 	bool "Atmel AT91RM9200-EK Evaluation Kit"
 	depends on ARCH_AT91RM9200