Davinci: iotable based ioremap() interception

This patch allows for a more flexible ioremap() interception based on iotable
contents.

With this patch, the ioremap() interception code can properly translate
addresses only after davinci_soc_info has been initialized.  Consequently,
in soc-specific init functions, davinci_common_init() has to happen before any
ioremap() attempts. The da8xx init sequence has been suitably modified to meet
this restriction.

Signed-off-by: Cyril Chemparathy <cyril@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-davinci/include/mach/common.h b/arch/arm/mach-davinci/include/mach/common.h
index 2e07248..a57cba2 100644
--- a/arch/arm/mach-davinci/include/mach/common.h
+++ b/arch/arm/mach-davinci/include/mach/common.h
@@ -39,7 +39,13 @@
 
 struct davinci_gpio_controller;
 
-/* SoC specific init support */
+/*
+ * SoC info passed into common davinci modules.
+ *
+ * Base addresses in this structure should be physical and not virtual.
+ * Modules that take such base addresses, should internally ioremap() them to
+ * use.
+ */
 struct davinci_soc_info {
 	struct map_desc			*io_desc;
 	unsigned long			io_desc_num;