at91sam9/at91cap: improve clock framework

calculate dynamically the clock rate and pllb setting for usb

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/cpu/arm926ejs/at91/cpu.c b/cpu/arm926ejs/at91/cpu.c
new file mode 100644
index 0000000000..a9705cfed3
--- /dev/null
+++ b/cpu/arm926ejs/at91/cpu.c
@@ -0,0 +1,14 @@
+#include <config.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/at91_pmc.h>
+#include <asm/arch/clk.h>
+#include <asm/arch/io.h>
+
+int arch_cpu_init(void)
+{
+#ifdef AT91_MAIN_CLOCK
+	return at91_clock_init(AT91_MAIN_CLOCK);
+#else
+	return at91_clock_init(0);
+#endif
+}