ARM: at91/dt: add specific DT soc init

This will allow to have static Device mapping and DT probe mapping for the
System Controller.

Temporary keep the call to ioremap_registers() until we have the binding
for the SDRAM/DDR Controller.

Temporary keep the main clock hardcoded to 12MHz until we have the binding
for the PMC.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index 372396c2ecb..c0bd5a62569 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -9,6 +9,7 @@
 #include <linux/io.h>
 #include <linux/mm.h>
 #include <linux/pm.h>
+#include <linux/of_address.h>
 
 #include <asm/mach/map.h>
 
@@ -285,6 +286,23 @@ void __init at91_ioremap_matrix(u32 base_addr)
                 panic("Impossible to ioremap at91_matrix_base\n");
 }
 
+#if defined(CONFIG_OF)
+void __init at91_dt_initialize(void)
+{
+        /* temporary until have the ramc binding*/
+        at91_boot_soc.ioremap_registers();
+
+        /* temporary until have the pmc binding */
+        /* Init clock subsystem */
+        at91_clock_init(12000000);
+
+        /* Register the processor-specific clocks */
+        at91_boot_soc.register_clocks();
+
+        at91_boot_soc.init();
+}
+#endif
+
 void __init at91_initialize(unsigned long main_clock)
 {
         at91_boot_soc.ioremap_registers();