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>
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
new file mode 100644
index 0000000..096eb98
--- /dev/null
+++ b/arch/arm/mach-at91/setup.c
@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2007 Atmel Corporation.
+ * Copyright (C) 2011 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
+ *
+ * Under GPLv2
+ */
+
+#include <linux/module.h>
+#include <linux/io.h>
+
+#include <asm/mach/map.h>
+
+#include <mach/hardware.h>
+#include <mach/cpu.h>
+
+#include "soc.h"
+#include "generic.h"
+
+struct at91_soc __initdata at91_boot_soc;
+
+static struct map_desc at91_io_desc __initdata = {
+ .virtual = AT91_VA_BASE_SYS,
+ .pfn = __phys_to_pfn(AT91_BASE_SYS),
+ .length = SZ_16K,
+ .type = MT_DEVICE,
+};
+
+void __init at91_map_io(void)
+{
+ /* Map peripherals */
+ iotable_init(&at91_io_desc, 1);
+
+ if (cpu_is_at91cap9())
+ at91_boot_soc = at91cap9_soc;
+ else if (cpu_is_at91rm9200())
+ at91_boot_soc = at91rm9200_soc;
+ else if (cpu_is_at91sam9260())
+ at91_boot_soc = at91sam9260_soc;
+ else if (cpu_is_at91sam9261())
+ at91_boot_soc = at91sam9261_soc;
+ else if (cpu_is_at91sam9263())
+ at91_boot_soc = at91sam9263_soc;
+ else if (cpu_is_at91sam9g10())
+ at91_boot_soc = at91sam9261_soc;
+ else if (cpu_is_at91sam9g20())
+ at91_boot_soc = at91sam9260_soc;
+ else if (cpu_is_at91sam9g45())
+ at91_boot_soc = at91sam9g45_soc;
+ else if (cpu_is_at91sam9rl())
+ at91_boot_soc = at91sam9rl_soc;
+ else if (cpu_is_at91sam9x5())
+ at91_boot_soc = at91sam9x5_soc;
+ else
+ panic("Impossible to detect the SOC type");
+
+ if (at91_boot_soc.map_io)
+ at91_boot_soc.map_io();
+}
+
+void __init at91_initialize(unsigned long main_clock)
+{
+ at91_boot_soc.init(main_clock);
+}