at91: introduce commom AT91_BASE_SYS

On all at91 except rm9200 and x40 have the System Controller starts
at address 0xffffc000 and has a size of 16KiB.

On rm9200 it's start at 0xfffe4000 of 111KiB with non reserved data starting
at 0xfffff000

This patch removes the individual definitions of AT91_BASE_SYS and
replaces them with a common version at base 0xfffffc000 and size 16KiB
and map the same memory space

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Patrice Vilchez <patrice.vilchez@atmel.com>

1 files changed, 10 insertions, 11 deletions

diff --git a/arch/arm/mach-at91/at91cap9.c b/arch/arm/mach-at91/at91cap9.c
index f1013d08bb57..7ec9eeb64286 100644
--- a/arch/arm/mach-at91/at91cap9.c
+++ b/arch/arm/mach-at91/at91cap9.c
@@ -25,16 +25,12 @@
 #include <mach/at91_rstc.h>
 #include <mach/at91_shdwc.h>
 
+#include "soc.h"
 #include "generic.h"
 #include "clock.h"
 
-static struct map_desc at91cap9_io_desc[] __initdata = {
+static struct map_desc at91cap9_sram_desc[] __initdata = {
         {
-                .virtual        = AT91_VA_BASE_SYS,
-                .pfn            = __phys_to_pfn(AT91_BASE_SYS),
-                .length         = SZ_16K,
-                .type           = MT_DEVICE,
-        }, {
                 .virtual        = AT91_IO_VIRT_BASE - AT91CAP9_SRAM_SIZE,
                 .pfn            = __phys_to_pfn(AT91CAP9_SRAM_BASE),
                 .length         = AT91CAP9_SRAM_SIZE,
@@ -339,14 +335,12 @@ static void at91cap9_poweroff(void)
  *  AT91CAP9 processor initialization
  * -------------------------------------------------------------------- */
 
-void __init at91cap9_map_io(void)
+static void __init at91cap9_map_io(void)
 {
-        /* Map peripherals */
-        iotable_init(at91cap9_io_desc, ARRAY_SIZE(at91cap9_io_desc));
+        iotable_init(at91cap9_sram_desc, ARRAY_SIZE(at91cap9_sram_desc));
 }
 
-void __init at91cap9_initialize(unsigned long main_clock)
-{
+static void __init at91cap9_initialize(unsigned long main_clock)
         at91_arch_reset = at91cap9_reset;
         pm_power_off = at91cap9_poweroff;
         at91_extern_irq = (1 << AT91CAP9_ID_IRQ0) | (1 << AT91CAP9_ID_IRQ1);
@@ -420,3 +414,8 @@ void __init at91cap9_init_interrupts(unsigned int priority[NR_AIC_IRQS])
         /* Enable GPIO interrupts */
         at91_gpio_irq_setup();
 }
+
+struct at91_soc __initdata at91cap9_soc = {
+        .map_io = at91cap9_map_io,
+        .init = at91cap9_initialize,
+};